CN114170984A - Display panel driving method and display panel - Google Patents
Display panel driving method and display panel Download PDFInfo
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- CN114170984A CN114170984A CN202111449389.4A CN202111449389A CN114170984A CN 114170984 A CN114170984 A CN 114170984A CN 202111449389 A CN202111449389 A CN 202111449389A CN 114170984 A CN114170984 A CN 114170984A
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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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- 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
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The application provides a driving method of a display panel and the display panel, comprising the following steps: acquiring a voltage data table stored in a storage module, and searching a plurality of target data voltages in the voltage data table, wherein the difference value between every two target data voltages is less than or equal to a preset difference value; acquiring target pixel driving units corresponding to a plurality of target data voltages; the same data voltage is input to the plurality of target pixel driving units. In the pixel driving unit which is preset with the input data voltage with smaller phase difference, the controller controls the input of the same data voltage, so that the display brightness of the pixel driving unit which is preset with the input data voltage with smaller phase difference tends to be consistent, the problem of bright and dark lines caused by data voltage error flushing of the display panel in a high-refresh-rate working state is avoided, and the display brightness uniformity of the display panel in the high-refresh-rate working state is ensured.
Description
Technical Field
The present application relates to the field of display circuit technology, and in particular, to a driving method of a display panel and a display panel.
Background
At present, most electronic devices have a function of displaying images, and a liquid crystal display panel is one of the important research directions in the field of display technology as a main application device in the electronic devices. In the liquid crystal display panel in the prior art, the problem of bright and dark lines displayed on the liquid crystal display panel due to data voltage offset in the working state of the liquid crystal display panel with a high refresh rate is solved, and how to make the display brightness of the liquid crystal display panel more uniform becomes a technical problem to be solved.
Disclosure of Invention
The application discloses a driving method of a display panel and the display panel, wherein the display brightness of the liquid crystal display panel is more uniform.
In a first aspect, the present application provides a method for driving a display panel, including:
acquiring a voltage data table stored in a storage module, and searching a plurality of target data voltages in the voltage data table, wherein the difference value between every two target data voltages is less than or equal to a preset difference value; acquiring target pixel driving units corresponding to the target data voltages; the same data voltage is input to a plurality of the target pixel driving units.
In a second aspect, the present application provides a display panel comprising:
a plurality of scan lines extending in a first direction; the data lines extend along a second direction, and the second direction is perpendicular to the first direction; the pixel driving units are arranged in a space formed by enclosing two adjacent scanning lines and two adjacent data lines and are electrically connected with the scanning lines and the data lines; the data connecting line is connected with at least two data lines, and each data connecting line is provided with a first switch; and the controller is electrically connected with the first switch and is used for controlling the first switch to conduct at least two data lines and controlling the at least two data lines conducted by the first switch to input the same data voltage.
The pixel driving unit with the preset input data voltage with small phase difference is searched in the voltage data table to serve as a target pixel driving unit, and the controller controls the same data voltage to be input into the target pixel driving unit, so that the display brightness of the pixel driving unit with the preset input data voltage with small phase difference tends to be consistent, the problem of bright and dark lines caused by the mistaken flushing of the data voltage of the display panel in a high-refresh-rate working state is avoided, and the display brightness uniformity of the display panel in the high-refresh-rate working state is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a first schematic view of a display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a pixel driving unit according to an embodiment of the present disclosure;
fig. 3 is a first driving flow chart of a display panel circuit according to an embodiment of the present disclosure;
FIG. 4 is a first voltage data table provided by an embodiment of the present application;
FIG. 5 is a second voltage data table provided by an embodiment of the present application;
fig. 6 is a second driving flow chart of a display panel circuit according to an embodiment of the present disclosure;
FIG. 7 is a first flowchart of a comparison of a voltage data table provided in an embodiment of the present application;
FIG. 8 is a second flowchart of a comparison of a voltage data table provided in an embodiment of the present application;
FIG. 9 is a third comparative flowchart of a voltage data table provided in the embodiments of the present application;
FIG. 10 is a third voltage data table provided by an embodiment of the present application;
fig. 11 is a third driving flow chart of a display panel circuit according to an embodiment of the present disclosure;
FIG. 12 is a fourth voltage data table provided by an embodiment of the present application;
FIG. 13 is a fifth voltage data table provided by an embodiment of the present application;
fig. 14 is a schematic view illustrating a second display panel according to an embodiment of the present application;
fig. 15 is a schematic diagram of a display panel iii according to an embodiment of the present application;
fig. 16 is a fourth schematic view of a display panel according to an embodiment of the present application;
fig. 17 is a schematic diagram of a display panel according to an embodiment of the present application;
fig. 18 is a sixth schematic view of a display panel according to an embodiment of the present application;
fig. 19 is a schematic diagram seven of a display panel according to an embodiment of the present application.
Description of reference numerals: display panel-1, sub-pixel-10, data line-100, data line segment-110, second switch-120, third switch-121, scan line-200, scan line segment-210, fourth switch-510, fifth switch-220, sixth switch-221, pixel driving unit-300, driving thin film transistor-T1, storage capacitor-CST 1, storage capacitor-CST 1, common electrode VCOM, first pixel driving unit-301, second pixel driving unit-302, third pixel driving unit-303, fourth pixel driving unit-304, fifth pixel driving unit-305, sixth pixel driving unit-306, seventh pixel driving unit-307, eighth pixel driving unit-308, ninth pixel driving unit-309, and, A data connecting line-400, a first switch-410, a scanning connecting line-500, a data driving module-600, a scanning driving module-700 and a voltage data table-800.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.
Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
It should be noted that the terms "first", "second", and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the existing design, a far-end CLK (clock) delay mode is generally used for solving the problem of bright and dark lines at the far end of the liquid crystal display screen, but the delay time is limited, the improvement effect is limited, and the problem cannot be solved fundamentally, and the near-end charging is not uniform, the near-end charging is mainly reduced, so that the far-end charging is damaged.
The application discloses a driving method of a display panel and the display panel, which enable the display brightness of the liquid crystal display panel to be more uniform, and can solve the problem of bright and dark lines, so that the brightness uniformity of the liquid crystal display panel is better, and the phenomenon of uneven charging near and far ends is solved.
The present application provides a display panel 1 that makes display more uniform. Referring to fig. 1, fig. 1 is a schematic view of a display panel 1 provided in the present application, where the display panel 1 includes a plurality of scan lines 200 and a plurality of data lines 100. The scanning lines 200 extend along a first direction, a plurality of the scanning lines 200 are parallel to each other and are sequentially arranged, and the first direction is a horizontal direction; the data lines 100 extend along a second direction, the second direction is perpendicular to the first direction, the data lines 100 are parallel to each other and are arranged in sequence, and the second direction is a vertical direction.
Referring to fig. 1, the display panel 1 further includes a plurality of pixel driving units 300, the plurality of pixel driving units 300 are arranged in an array, the plurality of pixel driving units 300 along the first direction are all electrically connected to the same scanning line 200 at the corresponding position (the pixel driving units 300 in the same row are all electrically connected to the scanning line 200 in the same row), and the plurality of pixel driving units 300 along the second direction are all electrically connected to the same data line 100 at the corresponding position (the pixel driving units 300 in the same row are all electrically connected to the data line 100 in the same row).
Referring to fig. 1, the display panel 1 further includes at least one data connection line 400, the data connection line 400 is connected to at least two data lines 100, and each data connection line 400 is provided with a first switch unit, which refers to the first switch 410. In this embodiment, a plurality of data connection lines 400 connect all the data lines 100, and the first switch 410 is disposed between every two adjacent data lines 100.
The display panel 1 further includes a controller (not shown) electrically connected to the first switch 410, and configured to control the first switch 410 to turn on at least two of the data lines 100, and control the at least two of the data lines 100 turned on by the first switch 410 to input the same data voltage.
Optionally, the controller includes but is not limited to a Tcon (timing controller) logic board.
The data connection lines 400 are arranged between the data lines 100, each data connection line 400 is provided with a first switch 410, and the controller is electrically connected with the first switches 410 and controls the on-off condition of the first switches 410, so that the same data voltage is input into at least two data lines 100, the problem that the voltage and the current are insufficient when the pixel driving unit 300 is charged due to overlarge resistance and parasitic capacitance at the far ends of the data lines 100 is avoided, and the brightness display uniformity of the display panel 1 is improved.
Referring to fig. 1, the display panel 1 further includes at least one scan connection line 500, the scan connection line 500 connects at least two scan lines 200, and a second switch unit is disposed on each scan connection line 500, where the second switch unit refers to a fourth switch 510 (the second switch and the third switch are described later). In this embodiment, the plurality of scan connection lines 500 connect all the scan lines 200, and the fourth switch 510 is disposed between every two adjacent scan lines 200.
The controller is electrically connected to the fourth switch 510, and is configured to control the fourth switch 510 to turn on at least two scan lines 200, and control at least two scan lines 200 turned on by the fourth switch 510 to input the same gate voltage.
Set up between the scanning line 200 scanning connecting wire 500, every be equipped with fourth switch 510 on the scanning connecting wire 500, again by the controller electricity is connected fourth switch 510 and control the fourth switch 510 condition of opening and shutting makes at least two the scanning line 200 inputs the same grid voltage to it can open simultaneously to make to be located different row pixel drive unit, and then can fill into the same data voltage to the pixel drive unit who opens, avoids display panel 1 because of under high refresh rate operating condition the bright dark line problem that data voltage mistake dashes and leads to ensures display panel 1 shows luminance homogeneity under high refresh rate operating condition.
Referring to fig. 1, the data line 100 includes a plurality of data line segments 110. The data line segment 110 is a segment of the data line 100 corresponding to a single pixel driving unit 300. The scan line 200 includes a scan line segment 210. The scan line segment 210 is a segment of the scan line 200 corresponding to the position of the pixel driving unit 300 on the scan line 200.
The data line segment 110 is further provided with a third switch unit, the third switch unit includes the second switch 120 and the third switch, the second switch 120 and the third switch are switches of the data line segment in different operation states and positions, and the principles thereof are basically consistent.
The scan line segment 110 is further provided with a fourth switch unit, the fourth switch unit further includes a fifth switch 220 and a sixth switch, the fifth switch 220 and the sixth switch are switches of the scan line segment in different operation states and positions, and the principles thereof are basically the same.
The controller is electrically connected to the second switch 120 to control the data line segment 110 to be turned on or off, and the controller is electrically connected to the fifth switch 220 to control the scan line segment 210 to be turned on or off.
Fig. 1 is a schematic diagram of the display panel 1, the second switch 120 is a simple drawing, and the second switch 120 can control the operation of the pixel driving unit 300 at the corresponding position of the switch. The second switch 120 includes, but is not limited to, a thin film driving transistor.
Correspondingly, the fifth switch 220 is also a simple drawing, and the fifth switch 220 can control the operation of the pixel driving unit 300 at the corresponding position of the switch. The fifth switch 220 includes, but is not limited to, a thin film driving transistor.
By controlling the second switch 120 and the fifth switch 220 through the controller, the data voltage control of the single pixel driving unit 300 can be realized, and the brightness display uniformity of the display panel 1 can be improved.
The display panel 1 further includes a scan driving module 700 and a data driving module 600, the scan driving module 700 is connected to the plurality of scan lines 200, and the scan driving module 700 is configured to input scan signals to the scan lines 200; the data driving module 600 is connected to a plurality of data lines 100, the data driving module 600 is configured to input data signals to the data lines 100, and the controller controls the data driving module 600 to adjust the data voltages of the data lines 100.
Referring to fig. 2, each of the pixel driving units 300 has a driving thin film transistor, a storage capacitor and a liquid crystal capacitor. The gate of the driving tft T1 is electrically connected to the scan line 200 corresponding to the row where the pixel driving unit 300 is located, the source of the driving tft T1 is electrically connected to the drain of the charge control driving tft T1, the drain is electrically connected to one end of the storage capacitor CST1 and one end of the liquid crystal capacitor CLC1, and the source of the driving tft T1 is electrically connected to the data line 100 corresponding to the row where the pixel is located; the other end of the storage capacitor CST1 and the other end of the storage capacitor CST1 are both electrically connected to the common electrode VCOM.
Referring to fig. 3, the present application provides a driving method of a circuit of a display panel 1, applied to the display panel 1, the method including the following steps:
s100, obtaining a voltage data table 800 stored in a storage module, where the voltage data table 800 includes data voltages of all the pixel driving circuits in the pixel driving unit 300, and searching for a plurality of target data voltages in the voltage data table 800, where a difference between every two target data voltages is less than or equal to a preset difference.
Optionally, the voltage data table 800 includes, but is not limited to, a 1920 x 1080 table.
The storage module is arranged in the controller. The voltage data table 800 may be a one-to-one mapping relationship between the coordinates and the voltages of the pixel driving unit 300. Wherein the voltage includes, but is not limited to, the data voltage or the gate voltage. The present embodiment takes the voltage in the voltage data table 800 as the data voltage for illustration.
A plurality of target data voltages are searched in the voltage data table 800, and a difference between every two target data voltages is smaller than or equal to a preset difference, wherein the preset difference is V1 ± 3% V1, but is not limited to this data. V1 is the target data voltage.
And S200, acquiring target pixel driving units corresponding to the plurality of target data voltages.
And acquiring target coordinates of the target pixel driving units corresponding to the plurality of target data voltages.
As shown in fig. 4, in this embodiment, the pixel driving unit 300 arranged in an array may have a 3 × 3 square matrix structure, and specifically, the pixel driving unit 300 includes a first pixel driving unit 301, a first pixel driving unit 302, a third pixel driving unit 303, a fourth pixel driving unit 304, a fifth pixel driving unit 305, a sixth pixel driving unit 306, a seventh pixel driving unit 307, an eighth pixel driving unit 308, and a ninth pixel driving unit 309. Correspondingly, the coordinates of the first pixel driving unit 301 are (1,1), the coordinates of the first pixel driving unit 302 are (1,2), the coordinates of the third pixel driving unit 303 are (1,3), the coordinates of the fourth pixel driving unit 304 are (2,1), the coordinates of the fifth pixel driving unit 305 are (2,2), the coordinates of the sixth pixel driving unit 306 are (2,3), the coordinates of the seventh pixel driving unit 307 are (3,1), the coordinates of the eighth pixel driving unit 308 are (3,2), and the coordinates of the ninth pixel driving unit 309 are (3, 3).
For example, if the data voltage of the first pixel driving unit 301, the data voltage of the fifth pixel driving unit 305, and the data voltage of the ninth pixel driving unit 309 are obtained from the voltage data table 800 as the target data voltages, the corresponding first pixel driving unit 301, fifth pixel driving unit 305, and ninth pixel driving unit 309 are the target pixel driving units, and the controller obtains the coordinates (1,1) corresponding to the first pixel driving unit 301, the coordinates (2,2) corresponding to the fifth pixel driving unit 305, and the coordinates (3,3) corresponding to the ninth pixel driving unit 309.
And S300, inputting the same data voltage into a plurality of target pixel driving units.
Specifically, the same data voltage is input to the target pixel driving units corresponding to the target coordinates, where optionally, the data voltage input to the plurality of target pixel driving units may be the target data voltage of one of the target pixel driving units, and the data voltage input to the plurality of target pixel driving units may also be an average value of the target data voltages of the plurality of target pixel driving units.
In this embodiment, the data voltages input to the target pixel driving units are taken as an average value of the target data voltages of the target pixel driving units. As shown in fig. 5, when the first pixel driving unit 301, the first pixel driving unit 302 and the third pixel driving unit 303 are the target pixel driving unit, and the target data voltage of the first pixel driving unit 301 is 98V, the target data voltage of the first pixel driving unit 302 is 100V, and the target data voltage of the third pixel driving unit 303 is 102V. The data voltage inputted by the controller to the first pixel driving unit 301, the first pixel driving unit 302, and the third pixel driving unit 303 is 100V.
In the pixel driving unit 300, which is preset to input the data voltages with smaller phase difference, the controller controls to input the same data voltages, so that the display brightness of the pixel driving unit 300, which is preset to input the data voltages with smaller phase difference, tends to be consistent, the problem of bright and dark lines caused by the data voltage dash error in the high refresh rate operating state of the display panel 1 is avoided, and the display brightness uniformity of the display panel 1 in the high refresh rate operating state is ensured.
Referring to fig. 6, optionally, the step S100 of "searching a plurality of target data voltages in the voltage data table 800, where a difference between every two target data voltages is smaller than a preset difference", includes:
s110, comparing the data voltages in different rows in the voltage data table 800 to obtain a plurality of target data voltages. Specifically, the data voltages in the voltage data table 800 are compared in units of rows.
The voltage data table 800 compares the data voltages in different rows in various ways. In one embodiment, the voltage data table 800 with the data voltage of 4 × 4 is used for example analysis.
Alternatively, as shown in fig. 7, the data voltages in the first row in the voltage data table 800 may be compared first, the data voltages in the second row in the voltage data table 800 may be compared, and the data voltages in all rows in the voltage data table 800 may be compared in sequence.
Alternatively, as shown in fig. 8, the data voltages in the first row in the voltage data table 800 may be compared first, the data voltages in the third row in the voltage data table 800 may be compared, and the data voltages in all odd rows in the voltage data table 800 may be compared sequentially after the data voltages in all even rows in the voltage data table 800 are compared sequentially.
Alternatively, as shown in fig. 9, the data voltages in the first row in the voltage data table 800 may be compared first, the data voltages in the last row in the voltage data table 800 may be compared second, and the data voltages in the second row, the second last row to the middle row in the voltage data table 800 may be compared sequentially.
Of course, the manner in which the data voltages in the voltage data table 800 are compared herein includes, but is not limited to, comparing the data voltages in the voltage data table 800 in units of rows. In other embodiments, the data voltages in the voltage data table 800 may be compared in units of columns, or in units of a single data voltage, or in units of data voltages in a region.
The data voltage in the voltage data table 800 can be compared in the fastest speed by comparing the data voltages in the voltage data table 800, so that the control efficiency of the controller is improved.
Specifically, as shown in fig. 10, when the data voltage of the first pixel driving unit 301 is 100V, the data voltage of the first pixel driving unit 302 is 50V, the data voltage of the third pixel driving unit 303 is 70V, the data voltage of the fourth pixel driving unit 304 is 90V, the data voltage of the fifth pixel driving unit 305 is 102V, the data voltage of the sixth pixel driving unit 306 is 80V, the data voltage of the seventh pixel driving unit 307 is 30V, the data voltage of the eighth pixel driving unit 308 is 60V, and the data voltage of the ninth pixel driving unit 309 is 98V, the data voltage of the first pixel driving unit 301 is 100V, the data voltage of the first pixel driving unit 302 is 50V, the data voltage of the third pixel driving unit 303 is 80V, and the data voltage of the eighth pixel driving unit 308 is 60V. The controller determines that the data voltage 100V of the first pixel driving unit 301, the data voltage 102V of the fifth pixel driving unit 305, and the data voltage 98V of the ninth pixel driving unit 309 are the target data voltages by comparing the data voltages of the voltage data table 800.
Referring to fig. 11 and 12, alternatively, the "comparing the data voltages in different rows in the voltage data table 800 to obtain a plurality of target data voltages" in S110 includes:
s111, in the voltage data table 800, a first number of the data voltages having a difference smaller than or equal to the preset difference among the data voltages of the first target row is obtained. Comparing the first number with a preset number. The present embodiment is not limited to the specific data of the preset number, for example, the preset number may be 0, 1,2, 3, … … n, and the like, where n is the number of pixel driving units 300 in one row.
The first target row is not specifically limited in the present application. The first target row may be a first row, a second row, a third row, etc. of the voltage data table 800. In this embodiment, the first line is the first target line.
S112, when the first number is less than or equal to the preset number, obtaining a second number of the data voltages having a difference value less than or equal to the preset difference value among the plurality of data voltages of the second target row.
For example, if the predetermined number is 0, it indicates that all the data voltages in the data voltage table are the target data voltages. In this embodiment, the preset number is 2 for example.
Specifically, as shown in fig. 12, if the number of the data voltages in the first row whose difference is smaller than or equal to the preset difference is 2 and the number is smaller than or equal to the preset number 2, the second number of the data voltages in the second target row whose difference is smaller than or equal to the preset difference is continuously searched.
The second target row is not specifically limited in the present application. The second target row may be a first row, a second row, a third row, etc.
S113, when the first number is greater than the preset number, determining the data voltage with the intra-row first target difference being less than or equal to the preset difference as a target data voltage; and searching for data voltage with the difference value between the second target row and the target data voltage being less than or equal to the preset difference value, and determining the searched data voltage as the target data voltage.
Specifically, as shown in fig. 13, if the number of the data voltages having a difference value smaller than or equal to the preset difference value in the first row is 3 and the number is smaller than or equal to the preset number 2, the data voltage having a difference value smaller than or equal to the preset difference value in the first row is determined as the target data voltage.
Then, the data voltage in which the difference between the second target row and the target data voltage is less than or equal to the preset difference is searched, and the searching mode is the same as the requirement and the first target row, which is not repeated herein.
By searching the specific data voltage of each row in the voltage data table 800 and determining two rows needing to be communicated, multiple target data voltages can be obtained quickly and widely, and the searching efficiency of the voltage data table 800 is improved.
Referring to fig. 4 again, the step of obtaining the target pixel driving units corresponding to the target data voltages includes: target coordinates of the plurality of target data voltages in the voltage data table 800 are obtained.
Namely, the target pixel driving unit is determined in the display area of the display screen according to the target coordinate determination.
The "inputting the target data voltages at a plurality of the target pixel driving units" includes: conducting a data connection path for connecting a plurality of target pixel driving units, wherein the data connection path comprises at least one of a target data line segment electrically connected with the target pixel driving units, a data connection line 400 electrically connected between the plurality of target data line segments, and a plurality of data line segments electrically connected between the plurality of target data line segments, the data line segment is a segment of the data line 100 corresponding to a single pixel driving unit 300, and the data connection line 400 is a connection line electrically connected between two parallel data lines; inputting the same data voltage in the data connection path.
Specifically, the first pixel driving unit 301 and the fifth pixel driving unit 305 are taken as target pixel driving units for illustration, please refer to fig. 14, which shows the conduction condition between the data line 100 and the data connection line 400 when the first pixel driving unit 301 and the fifth pixel driving unit 305 are taken as target pixel driving units. When the data link line 400 is turned on, the target data line segment corresponding to the first pixel driving unit 301 is turned on, the target data line segment corresponding to the fifth pixel driving unit 305 is a channel, and the data line segment corresponding to the second pixel driving unit 302 is also turned on, the same data voltage is input to the first pixel driving unit 301 and the fifth pixel driving unit 305.
The target data voltages are input into the data connection paths, and the target pixel driving units in these paths input the same data voltages, so that the display brightness of the pixel driving units 300 preset with the input data voltages with smaller phase difference tends to be consistent, the bright and dark line problem caused by the data voltage offset in the high refresh rate operating state of the display panel 1 is avoided, and the display brightness uniformity of the display panel 1 in the high refresh rate operating state is ensured.
The "conducting the data link line 400 electrically connected between the target data line segments" includes: the first switch 410 on the data link line 400 connecting the data lines 100 of the plurality of target pixel driving units is turned on.
The turning on of the target data line segment electrically connected to the target pixel driving unit includes: and controlling the second switch 120 on the target data line segment electrically connected to the target pixel driving unit to be turned on.
The "turning on the plurality of data line segments 110 electrically connected between the plurality of target data line segments" includes: and controlling the third switches 121 on the data line segments 110 among the target data line segments to be turned on.
Specifically, referring to fig. 15, the first pixel driving unit 301 and the fifth pixel driving unit 305 are taken as target pixel driving units for illustration, and the figure shows the turn-on condition of the corresponding switches when the first pixel driving unit 301 and the fifth pixel driving unit 305 are taken as target pixel driving units. When the first switch 410 of the data link line 400 is turned on, the second switch 120 of the first pixel driving unit 301 corresponding to the target data line segment is turned on, the second switch 120 of the fifth pixel driving unit 305 corresponding to the target data line segment is turned on, and the third switch 121 of the second pixel driving unit 302 corresponding to the data line segment is also turned on, the same data voltage is input to the first pixel driving unit 301 and the fifth pixel driving unit 305.
Alternatively, in another embodiment, when the second switches 120 of a plurality of target data line segments are turned on, the third switches 121 of a plurality of data line segments 110 may not be turned on, as shown in fig. 16.
Moreover, the display brightness of the pixel driving units 300 preset to input the data voltages with smaller phase difference tends to be consistent, and the data voltages of the pixel driving units 300 with the same data voltage but different display can be combined in the same way.
Before the "inputting the same data voltage in the data connection path", the method further includes:
conducting a scanning connection path for connecting a plurality of target pixel driving units, wherein the scanning connection path comprises at least one of a target scan line segment electrically connected with the target pixel driving units, a scanning connection line 500 electrically connected between the target scan line segments, and a plurality of scan line segments 210 electrically connected between the target scan line segments, the scan line segment 210 is a segment of the scan line 200 corresponding to a single pixel driving unit 300, and the scanning connection line 500 is a connection line electrically connected between two scan lines 200 arranged in parallel; the same gate voltage is input in the scan connection path.
Specifically, taking the first pixel driving unit 301 and the fifth pixel driving unit 305 as the target pixel driving unit for illustration, please refer to fig. 17, which shows the conduction condition between the scan line 200 and the scan connection line 500 when the first pixel driving unit 301 and the fifth pixel driving unit 305 are the target pixel driving units. When the scan connection line 500 is turned on, and the target scan line segment corresponding to the first pixel driving unit 301 is turned on, the target scan line segment corresponding to the fifth pixel driving unit 305 is turned on, and the scan line segment corresponding to the second pixel driving unit 302 is also turned on, the same gate voltage is input to the first pixel driving unit 301 and the fifth pixel driving unit 305.
The first pixel driving unit 301 and the fifth pixel driving unit 305 can input the same data voltage only after the same gate voltage is input to the scan connection path.
The "conducting the scan connecting line electrically connected between the plurality of target scan line segments" includes: turning on a fourth switch 510 on a scan connection line 500 connecting scan lines of a plurality of the target pixel driving units;
the turning on of the target scan line segment electrically connected to the target pixel driving unit includes: controlling a fifth switch 220 on a target scan line segment electrically connected to the target pixel driving unit to be turned on;
the "conducting a plurality of scan line segments 210 electrically connected between a plurality of target scan line segments" includes: and controlling the sixth switches 221 on the plurality of scan line segments 210 among the plurality of target scan line segments to be turned on.
Specifically, referring to fig. 18, the first pixel driving unit 301 and the fifth pixel driving unit 305 are exemplified as target pixel driving units, and the figure shows the turn-on condition of corresponding switches when the first pixel driving unit 301 and the fifth pixel driving unit 305 are used as target pixel driving units. When the fourth switch 510 of the scan connection line 400 is turned on, the same gate voltage is input to the first pixel driving unit 301 and the fifth pixel driving unit 305 under the condition that the fifth switch 220 of the first pixel driving unit 301 corresponding to the target scan line segment is turned on, the fifth switch 220 of the fifth pixel driving unit 305 corresponding to the target scan line segment is turned on, and the sixth switch 221 of the second pixel driving unit 302 corresponding to the scan line segment is also turned on.
Alternatively, in another embodiment, when the fifth switches 220 of a plurality of target scan line segments are turned on, the sixth switches 221 of a plurality of scan line segments 210 may not be turned on, as shown in fig. 19.
The principle and the embodiment of the present application are explained herein by applying specific examples, and the above description of the embodiment is only used to help understand the core idea of the present application; meanwhile, for a person 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 (10)
1. A method of driving a display panel, comprising:
acquiring a voltage data table stored in a storage module, and searching a plurality of target data voltages in the voltage data table, wherein the difference value between every two target data voltages is less than or equal to a preset difference value;
acquiring target pixel driving units corresponding to the target data voltages;
the same data voltage is input to a plurality of the target pixel driving units.
2. The driving method of the display panel according to claim 1, wherein the voltage data table includes a plurality of rows of the data voltages; the step of searching for a plurality of target data voltages in the voltage data table, where a difference between every two target data voltages is less than or equal to a preset difference, includes:
comparing the data voltages in different rows in the voltage data table to obtain a plurality of the target data voltages.
3. The method for driving a display panel according to claim 2, wherein the comparing the data voltages in different rows in the voltage data table to obtain a plurality of the target data voltages comprises:
in the voltage data table, acquiring a first number of the data voltages with a difference value smaller than or equal to the preset difference value from a plurality of the data voltages of a first target row;
when the first number is smaller than or equal to the preset number, acquiring a second number of the data voltages with a difference value smaller than or equal to the preset difference value from a plurality of the data voltages of a second target row;
when the first number is larger than the preset number, determining the data voltage with the difference value in the first target row smaller than or equal to the preset difference value as the target data voltage; and searching the data voltage with the difference value between the target data voltage and the second target row smaller than or equal to the preset difference value, and determining the searched data voltage as the target data voltage.
4. The method according to any one of claims 1 to 3, wherein a plurality of the data voltages in the voltage data table correspond to a plurality of pixel driving units one to one, and the step of obtaining the target pixel driving units corresponding to the plurality of target data voltages comprises:
acquiring target coordinates of the target data voltages in the voltage data table;
and determining a target pixel driving unit in the plurality of pixel driving units in the display area of the display screen according to the target coordinate.
5. The method according to any one of claims 1 to 3, wherein the step of inputting the same data voltage to the plurality of target pixel driving units comprises:
conducting a data connection path which is connected with a plurality of target pixel driving units, wherein the data connection path comprises at least one of target data line segments which are electrically connected with the target pixel driving units, data connection lines which are electrically connected among the target data line segments, and a plurality of data line segments which are electrically connected among the target data line segments, the data line segments are one sections of the data lines which correspond to a single pixel driving unit, and the data connection lines are connection lines which are electrically connected between two parallel data lines;
the same data voltage is input in the data connection path.
6. The driving method of a display panel according to claim 5,
the "conducting a data connection line electrically connected between a plurality of target data line segments" includes:
controlling the conduction of a first switch on a data connecting line connected between data lines of a plurality of target pixel driving units;
the turning on of the target data line segment electrically connected to the target pixel driving unit includes:
controlling a second switch on a target data line segment electrically connected with the target pixel driving unit to be conducted;
the step of turning on a plurality of data line segments electrically connected between a plurality of target data line segments comprises:
and controlling the third switches on the plurality of data line segments among the plurality of target data line segments to be turned on.
7. The method for driving a display panel according to claim 5, wherein before the step of inputting the same data voltage in the data connection path, the method further comprises:
conducting a scanning connection path which is connected with a plurality of target pixel driving units, wherein the scanning connection path comprises at least one of a target scanning line segment which is electrically connected with the target pixel driving units, a scanning connection line which is electrically connected among the target scanning line segments, and a plurality of scanning line segments which are electrically connected among the target scanning line segments, the scanning line segment is a segment of the scanning line which corresponds to a single pixel driving unit, and the scanning connection line is a connection line which is electrically connected between two parallel scanning lines;
the same gate voltage is input in the scan connection path.
8. A display panel, comprising:
a plurality of scan lines extending in a first direction;
the data lines extend along a second direction, and the second direction is perpendicular to the first direction;
the pixel driving units are arranged in a space formed by enclosing two adjacent scanning lines and two adjacent data lines and are electrically connected with the scanning lines and the data lines;
the data connecting line is connected with at least two data lines, and each data connecting line is provided with a first switch unit;
and the controller is electrically connected with the first switch unit and is used for controlling the first switch unit to conduct at least two data lines and controlling the at least two data lines conducted by the first switch unit to input the same data voltage.
9. The display panel according to claim 8, wherein the display panel further comprises at least one scan connection line, the scan connection line connects at least two of the scan lines, and a second switch unit is disposed on each of the scan connection lines;
the controller is electrically connected with the second switch unit and is used for controlling the second switch unit to conduct at least two scanning lines and controlling the at least two scanning lines conducted by the second switch unit to input the same grid voltage.
10. The display panel according to claim 8 or 9, wherein the data line includes a plurality of data line segments, the scan line includes a plurality of scan line segments, the data line segment is a segment of the data line corresponding to a single pixel driving unit, the scan line segment is a segment of the scan line corresponding to a single pixel driving unit, a third switching unit is further disposed on the data line segment, a fourth switching unit is further disposed on the scan line segment, and the controller is electrically connected to the third switching unit and the fourth switching unit, for controlling the data line segment to be turned on or off, and for controlling the scan line segment to be turned on or off.
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