CN109637491B - Driving method and driving system of display panel - Google Patents
Driving method and driving system of display panel Download PDFInfo
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- CN109637491B CN109637491B CN201910089369.7A CN201910089369A CN109637491B CN 109637491 B CN109637491 B CN 109637491B CN 201910089369 A CN201910089369 A CN 201910089369A CN 109637491 B CN109637491 B CN 109637491B
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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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
Abstract
The invention discloses a driving method and a driving system of a display panel, wherein the driving method comprises the following steps: dividing sub-pixel signals corresponding to sub-pixels to be judged into a plurality of signal judgment intervals in advance; receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; determining to drive a first sub-pixel and a second sub-pixel corresponding to the sub-pixel to be judged in a first adjusting mode or a second adjusting mode according to the statistical result; under the first and second adjusting modes, the average gray scale of the sub-pixel signals corresponding to the first and second sub-pixels is equivalent, and the gray scale difference is different.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a driving method and a driving system for a display panel.
Background
Most of the large-sized liquid crystal display panels adopt a negative Vertical Alignment (VA) liquid crystal technology or an In-Plane Switching (IPS) liquid crystal technology, and the VA liquid crystal technology has the advantages of higher production efficiency and lower manufacturing cost compared with the IPS liquid crystal technology, but has a more significant optical property defect compared with the IPS liquid crystal technology In terms of optical property, and particularly, the large-sized panels need a larger viewing angle In commercial application, that is, have more serious color cast.
Therefore, how to improve color shift is an important research topic for those skilled in the art.
Disclosure of Invention
The invention aims to provide a driving method and a driving system of a display panel, which can improve color cast and reduce granular feeling.
The invention provides a driving method of a display panel, wherein the display panel comprises a plurality of pixels, and each pixel comprises a plurality of different-color sub-pixels; at least one of the sub-pixels is a sub-pixel to be judged, two adjacent sub-pixels to be judged with the same color are used as a sub-pixel group to be judged, and each sub-pixel group to be judged comprises a first sub-pixel and a second sub-pixel;
the driving method includes the steps of:
dividing sub-pixel signals corresponding to sub-pixels to be judged into a plurality of signal judgment intervals in advance;
receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; determining to drive a first sub-pixel and a second sub-pixel corresponding to the sub-pixel to be judged in a first adjusting mode or a second adjusting mode according to the statistical result;
under the first and second adjusting modes, the average gray scale of the sub-pixel signals corresponding to the first and second sub-pixels is equivalent, and the gray scale difference is different.
Optionally, the step of receiving sub-pixel signals of all sub-pixels to be determined, and counting distribution of the sub-pixel signals in each signal determination interval includes:
receiving sub-pixel signals of all sub-pixels to be judged, and counting the proportion of the number of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals;
and respectively judging whether the proportion of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals meets the corresponding preset standard proportion value.
Optionally, the first adjustment manner is to average gray-scale values corresponding to original sub-pixel signals corresponding to a first sub-pixel and a second sub-pixel in each sub-pixel group to be determined, and then find corresponding sub-pixel high-voltage signals and sub-pixel low-voltage signals according to the average values and a preset lookup table, so as to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined; the second adjustment mode is to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined without processing the original sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel in each sub-pixel group to be determined.
Optionally, the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the sub-pixels to be judged are all red sub-pixels.
Optionally, the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the sub-pixels to be judged comprise a first sub-pixel to be judged and a second sub-pixel to be judged, the first sub-pixel to be judged is all green sub-pixels, and the second sub-pixel to be judged is all red sub-pixels.
Optionally, the display panel divides the pixels into a plurality of blocks according to physical positions;
receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; the step of determining whether to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined in the first adjustment mode or the second adjustment mode according to the statistical result comprises the following steps:
receiving sub-pixel signals of all sub-pixels to be judged by taking each block as a unit, and counting the proportion of the number of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals; respectively judging whether the proportion of the sub-pixel signals in each signal judgment interval occupying the total number of the sub-pixel signals in the block meets the corresponding preset standard proportion value;
if both the first sub-pixel and the second sub-pixel are satisfied, determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined are driven in a second adjusting mode; otherwise, determining to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be judged in the first adjusting mode.
Optionally, the display panel divides the pixels into a plurality of blocks according to physical positions; receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; the step of determining whether to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined in the first adjustment mode or the second adjustment mode according to the statistical result comprises the following steps:
counting the number of green sub-pixel signals in each signal judgment interval according to green sub-pixel signals of all green sub-pixels in the block by taking the block as a unit, wherein the number of the green sub-pixel signals occupies the proportion of the total number of the green sub-pixel signals in the block; respectively judging whether the number of the green sub-pixel signals in each signal judgment interval and the proportion of the total number of the green sub-pixel signals meet a preset standard proportion value or not;
if both the first sub-pixel and the second sub-pixel are satisfied, driving the first sub-pixel and the second sub-pixel corresponding to all the green sub-pixels in the block in a second adjusting mode; otherwise, driving the first sub-pixel and the second sub-pixel corresponding to all green sub-pixels in the block in a first adjusting mode;
counting the number of red sub-pixel signals in each signal judgment interval according to green sub-pixel signals of all red sub-pixels in the block by taking the block as a unit, wherein the number accounts for the total number of the red sub-pixel signals in the block; respectively judging the quantity of the red sub-pixel signals in each signal judgment interval and whether the proportion of the total quantity of the red sub-pixel signals in the occupied block meets a preset standard proportion value;
if both the first sub-pixel and the second sub-pixel are satisfied, driving the first sub-pixel and the second sub-pixel corresponding to all the red sub-pixels in the block in a second adjusting mode; otherwise, driving the first sub-pixel and the second sub-pixel corresponding to all the red sub-pixels in the block in the first adjustment mode.
Optionally, the signal judgment interval is sequentially divided into i signal judgment intervals according to the gray scale of the sub-pixel signal of the sub-pixel to be judged, the signal gray scale corresponding to the first signal judgment interval is minimum, and the signal gray scale corresponding to the ith signal judgment interval is maximum; wherein, the value of i is a natural number more than or equal to 2 and less than or equal to the maximum gray scale level of the display panel.
The invention also provides a driving method of the display panel, wherein the display panel comprises a plurality of pixels; the display panel divides the pixels into a plurality of blocks according to physical position adjacency; the pixels comprise red sub-pixels, green sub-pixels and blue sub-pixels; the pixels comprise a first to-be-determined sub-pixel and a second to-be-determined sub-pixel, the first to-be-determined sub-pixel is all green sub-pixels in a corresponding block, and the second to-be-determined sub-pixel is all red sub-pixels in the corresponding block; two adjacent green sub-pixels are used as a green judgment sub-pixel group, and each green judgment sub-pixel group comprises a first green sub-pixel and a second green sub-pixel; two adjacent red sub-pixels are used as a red judging sub-pixel group, and each red judging sub-pixel group comprises a first red sub-pixel and a second red sub-pixel; the driving method includes the steps of:
dividing sub-pixel signals corresponding to green sub-pixels into i signal judgment intervals in sequence according to the gray scale, and simultaneously dividing sub-pixel signals corresponding to red sub-pixels into j signal judgment intervals in sequence according to the gray scale; the value of i is a natural number which is more than or equal to 2 and is less than or equal to the maximum gray scale level of the display panel; j is a natural number more than or equal to 2 and less than or equal to the maximum gray scale level of the display panel;
counting the number of green sub-pixel signals in each signal judgment interval according to green sub-pixel signals of all green sub-pixels in the block by taking the block as a unit, wherein the number of the green sub-pixel signals occupies the proportion of the total number of the green sub-pixel signals in the block; respectively judging whether the number of the green sub-pixel signals in each signal judgment interval and the proportion of the total number of the green sub-pixel signals meet a preset standard proportion value or not;
if the first green sub-pixel signal and the second green sub-pixel signal are both satisfied, the original sub-pixel signals corresponding to the first green sub-pixel and the second green sub-pixel in each green judgment sub-pixel group are not processed and are used for driving the corresponding first green sub-pixel and the corresponding second green sub-pixel in the driving block; otherwise, after averaging the gray-scale values corresponding to the original sub-pixel signals corresponding to the first green sub-pixel and the second green sub-pixel in each green judgment sub-pixel group, finding the corresponding sub-pixel high-voltage signal and sub-pixel low-voltage signal according to the average value and a preset lookup table, and driving the corresponding first green sub-pixel and the corresponding second green sub-pixel in the block;
counting the number of red sub-pixel signals in each signal judgment interval according to the red sub-pixel signals of all red sub-pixels in the block by taking the block as a unit, wherein the number accounts for the total number of the red sub-pixel signals in the block; respectively judging whether the number of the red sub-pixel signals in each signal judgment interval and the proportion of the red sub-pixel signals in the total number meet a preset standard proportion value;
if both the first red sub-pixel and the second red sub-pixel in each red judgment sub-pixel group meet the requirements, original sub-pixel signals corresponding to the first red sub-pixel and the second red sub-pixel in each red judgment sub-pixel group are not processed and are used for driving the corresponding first red sub-pixel and the corresponding second red sub-pixel in the block; otherwise, after averaging the gray-scale values corresponding to the original sub-pixel signals corresponding to the first red sub-pixel and the second red sub-pixel in each red judgment sub-pixel group, finding the corresponding sub-pixel high-voltage signal and sub-pixel low-voltage signal according to the average value and a preset lookup table, and driving the corresponding first red sub-pixel and second red sub-pixel in the block;
dividing two adjacent blue sub-pixels into a group, averaging the gray scale values corresponding to the original sub-pixel signals corresponding to each group, and finding out corresponding sub-pixel high-voltage signals and sub-pixel low-voltage signals according to the average values and a preset lookup table so as to respectively drive two adjacent blue sub-pixels corresponding to the block;
the average gray scale of the sub-pixel high-voltage signal and the sub-pixel low-voltage signal corresponding to each sub-pixel group to be determined is equivalent to the average gray scale of the two corresponding original sub-pixel signals; the gray scale difference between the sub-pixel high voltage signal and the sub-pixel low voltage signal is larger than the gray scale difference between the two corresponding original sub-pixel signals.
The invention also provides a driving system, wherein the display panel comprises a plurality of pixels, and each pixel comprises a plurality of sub-pixels with different colors; at least one of the sub-pixels is a sub-pixel to be judged, two adjacent sub-pixels to be judged with the same color are used as a sub-pixel group to be judged, and each sub-pixel group to be judged comprises a first sub-pixel and a second sub-pixel;
the drive system includes: the interval division module divides sub-pixel signals corresponding to the sub-pixels to be judged into a plurality of signal judgment intervals in advance; the processing module is used for receiving sub-pixel signals of all sub-pixels to be judged and counting the distribution condition of the sub-pixel signals in each signal judgment interval; and the processing module determines to drive a first sub-pixel and a second sub-pixel corresponding to the sub-pixel to be judged in a first adjusting mode or a second adjusting mode according to the statistical result.
Compared with the scheme that the color cast is improved by dividing each pixel into the main pixel and the sub pixel and connecting the discharge switch and the discharge capacitor to the sub pixel, the main pixel and the sub pixel have different charging voltages. In the invention, sub-pixel signals corresponding to sub-pixels to be judged are received and counted, and the distribution condition of each signal interval is calculated; the adjustment mode is selected, when the signal distribution of the current picture is balanced, the adjustment mode with smaller gray scale difference is selected to drive the sub-pixel to be judged, the signal distribution is wide, the adjustment mode with smaller gray scale difference can be used, and the granular sensation can be improved while no serious color cast is generated; similarly, if the signal distribution of the current picture in each signal judgment interval is not uniform and local color cast is easy to occur, an adjustment mode with larger gray scale difference can be selected to drive the sub-pixels to be judged so as to improve the color cast; therefore, the adjustment mode is selected according to the actual situation of the current picture, and the display effect of the picture can be better improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. 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. In the drawings:
FIG. 1 is a first schematic diagram of an exemplary scheme for dividing a pixel into primary/secondary pixels;
FIG. 2 is a second schematic diagram of an exemplary scheme for dividing a pixel into primary/secondary pixels;
FIG. 3 is a flow chart of a driving method according to an embodiment of the present invention;
FIG. 4 is a flow chart of a driving method according to another embodiment of the present invention;
FIG. 5 is a schematic diagram of a pixel arrangement of a display panel according to an embodiment of the invention;
FIG. 6 is a schematic diagram illustrating pixel signal driving of a display panel according to an embodiment of the invention;
FIG. 7 is a flow chart of a driving method according to another embodiment of the present invention;
fig. 8 is a schematic diagram of a driving system of a display panel according to an embodiment of the invention.
10, a driving system; 100. an interval division module; 200. and a processing module.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
An exemplary solution is to subdivide each Sub-pixel of RGB (Red, Green, Blue) into primary/secondary pixels (Main/Sub) so that the overall large-view luminance is closer to the front view with voltage variation.
Fig. 1 is a first schematic diagram of a pixel divided into primary/secondary pixels, and fig. 2 is a second schematic diagram of a pixel divided into primary/secondary pixels, as can be seen with reference to fig. 1 and 2, wherein the x-coordinate, the y-coordinate, and the z-coordinate respectively represent three directions of a three-dimensional space; the thetaa represents the pretilt angle at which the main pixel has a large voltage, and the thetab represents the pretilt angle at which the sub pixel has a small voltage. Specifically, the original signal is divided into a primary pixel and a secondary pixel with large voltage and small voltage, the front-view large voltage and the small voltage are added to maintain the change of the original front-view signal along with the brightness, the side-view brightness seen by the large voltage changes along with the gray scale as PartA in fig. 1, and the side-view brightness seen by the small voltage changes along with the gray scale as PartB in fig. 1. Therefore, the brightness of the side view synthesis is changed from the arc line segments of the two dotted lines to the arc line segments of the solid line along with the change of the gray scale, so that the change relation of the brightness of the view angle along with the signal is close to that of the brightness of the front view original signal along with the change of the signal, and the view angle is improved.
The defect of color deviation of a viewing angle is solved by applying different driving voltages to the main pixel and the sub-pixel in space, so that the design of the pixel usually needs to design a metal wire or a Thin Film Transistor (TFT) element to drive the sub-pixel, the light-permeable opening area is sacrificed, the panel transmittance is influenced, and the backlight cost is directly improved.
The invention will be further elucidated with reference to the drawings and alternative embodiments.
Fig. 3 is a flow chart of a driving method according to an embodiment of the present invention, and fig. 4 is a flow chart of another driving method according to an embodiment of the present invention, as can be seen with reference to fig. 3 and fig. 4:
the invention also provides a driving method of a display panel, wherein the display panel comprises a plurality of pixels, and each pixel comprises a plurality of different-color sub-pixels; at least one of the sub-pixels is a sub-pixel to be judged, two adjacent sub-pixels to be judged with the same color are used as a sub-pixel group to be judged, and each sub-pixel group to be judged comprises a first sub-pixel and a second sub-pixel;
the driving method includes the steps of:
s11, dividing the sub-pixel signal corresponding to the sub-pixel to be judged into a plurality of signal judgment intervals in advance;
s12, receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; determining to drive a first sub-pixel and a second sub-pixel corresponding to the sub-pixel to be judged in a first adjusting mode or a second adjusting mode according to the statistical result;
under the first and second adjusting modes, the average gray scale of the sub-pixel signals corresponding to the first and second sub-pixels is equivalent, and the gray scale difference is different.
As shown in fig. 1 and 2, the Main pixel and the Sub-pixel have different charging voltages to improve color shift by dividing each pixel into Main and Sub pixels and connecting a discharging switch and a discharging capacitor to the Sub-pixel for convenience. In the invention, sub-pixel signals corresponding to sub-pixels to be judged are received and counted, and the distribution condition of each signal interval is calculated; the adjustment mode is selected, when the signal distribution of the current picture is balanced, the adjustment mode with smaller gray scale difference is selected to drive the sub-pixel to be judged, the signal distribution is wide, the adjustment mode with smaller gray scale difference can be used, and the granular sensation can be improved while no serious color cast is generated; similarly, if the signal distribution of the current picture in each signal judgment interval is not uniform and local color cast is easy to occur, an adjustment mode with larger gray scale difference can be selected to drive the sub-pixels to be judged so as to improve the color cast; therefore, the adjustment mode is selected according to the actual situation of the current picture, and the display effect of the picture can be better improved.
The average gray scale, i.e. the gray scale value of the sub-pixel signal corresponding to the first sub-pixel, is equal to the average value of the gray scale values of the sub-pixel signal corresponding to the second sub-pixel, i.e. the average brightness of the first sub-pixel and the second sub-pixel is equivalent in the first adjustment mode and the second adjustment mode. The average gray levels are equivalent, that is, the average gray levels of the first sub-pixel and the second sub-pixel are the same in the first adjustment mode and the second adjustment mode, and certainly, the average gray levels of the first sub-pixel and the second sub-pixel are not completely consistent in the first adjustment mode and the second adjustment mode, but the difference between the average gray levels is smaller than a preset range, for example, when the error is smaller than 0.5 gray level, the two average gray levels can be considered to be equivalent in size.
In an embodiment, the step S12 of receiving sub-pixel signals of all sub-pixels to be determined, and counting distribution of the sub-pixel signals in each signal determination interval includes:
receiving sub-pixel signals of all sub-pixels to be judged, and counting the proportion of the number of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals;
and respectively judging whether the proportion of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals meets the corresponding preset standard proportion value. In the embodiment, the proportion of the number of the sub-pixel signals in each signal judgment interval to the total number of the average values is calculated, so that the signal distribution condition can be more visually expressed, and a more applicable adjustment mode can be selected; in addition, the setting of the preset standard proportion value is hooked with the number of the divided signal judgment intervals, and when the number of the signal judgment intervals is small, the preset standard proportion value is set to be slightly larger; when the number of signal determination sections is large, the preset criterion proportion value is set to be slightly smaller, for example, when the number of signal determination sections is 3, the preset criterion proportion value of three signal determination sections may be Gth1 ═ Gth2 ═ Gth3 ═ 30%, and of course, the preset criterion proportion value may be set to be different and adjusted according to actual conditions.
The preset standard proportion value can also be calculated according to the total number of the sub-pixels to be judged and the proportion to obtain a specific number, and the calculation amount can be saved by setting a number threshold value instead of calculating the proportion value in the actual statistics.
In an embodiment, the first adjustment manner is to average gray-scale values corresponding to original sub-pixel signals corresponding to a first sub-pixel and a second sub-pixel in each sub-pixel group to be determined, and then find corresponding sub-pixel high-voltage signals and sub-pixel low-voltage signals according to the average values and a preset lookup table, so as to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined; the second adjustment mode is to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined without processing the original sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel in each sub-pixel group to be determined. In the embodiment, in the first adjustment mode, in the first sub-pixel and the second sub-pixel of the same sub-pixel group to be determined, the sub-pixel high-voltage signal and the sub-pixel low-voltage signal are used for realizing the display of one brightness, so that the color cast can be better improved; in the second adjustment mode, the gray scale difference of the original sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel of the same sub-pixel group to be determined is smaller, so that the granular sensation can be obviously improved; different adjustment modes are selected according to different conditions to drive the sub-pixels to be judged, and the display effect can be effectively improved.
The determination conditions of the present invention are not constant, but vary with different design requirements of the display panel, and an embodiment is specifically illustrated to better illustrate the solution of the present invention, wherein the corresponding relationship of the lookup table related to the embodiment is merely an example for easy understanding, and does not form a limitation to the present invention, as long as the technical solution of the present invention is met, the protection scope of the present invention should be included, and the specific lookup table is as follows:
as shown in table 1, the average value Rave of the sub-pixel signals of the red sub-pixel, the corresponding first sub-pixel signal and the corresponding second sub-pixel signal, and the sub-pixel high voltage signal RH and the sub-pixel low voltage signal RL correspond to each other as follows (the unit in the table is gray scale):
table 1 red subpixel lookup table
As shown in table 2, the green sub-pixel, the average value Gave of the sub-pixel signals of the corresponding first sub-pixel and second sub-pixel signals, and the sub-pixel high voltage signal GH and the sub-pixel low voltage signal GL are corresponding as follows (the unit in the table is gray scale):
table 2 green subpixel lookup table
Of course, the lookup tables shown in table 1 and table 2 are only an exemplary lookup table to illustrate the present invention more clearly, but do not represent that the lookup table of the present invention can only use the above lookup table; taking Rave equal to 50 as an example, in the first driving mode, the gray levels of the sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel may be 100 and 3, or 90 and 13, depending on the actual requirement.
When the gray scale difference between RH and RL corresponding to the red sub-pixel is slightly larger than the gray scale difference between GH and GL corresponding to the green sub-pixel, only the red sub-pixel may be set as the sub-pixel to be determined, and certainly, if the gray scale difference of the green sub-pixel set by other panels is larger, the green sub-pixel may also be set as the sub-pixel to be determined. Of course, it is also possible to set the red sub-pixel and the green sub-pixel as the sub-pixels to be determined at the same time.
Fig. 5 is a schematic diagram of a pixel arrangement of a display panel according to an embodiment of the invention, fig. 6 is a schematic diagram of a pixel signal driving of a display panel according to an embodiment of the invention, and referring to fig. 5 and 6, it can be known from fig. 3 and 4 that: r1,1, G1,1 and B1,1 corresponding to the dotted frame shown in fig. 5 are a pixel unit; the n × m pixel units may be the number of pixels of the entire display panel, or the number of pixels of one block. The virtual frame shown in fig. 6 corresponds to a group of corresponding first to-be-determined sub-pixels and second to-be-determined sub-pixels, and the physical positions of the two corresponding to-be-determined sub-pixels are adjacent to each other, so as to realize the presentation of an average gray scale. The blue sub-pixels can be driven by adopting an adjusting mode with large gray scale difference.
In one embodiment, the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the sub-pixels to be judged are all red sub-pixels.
In this embodiment, only one color of sub-pixels is set as the sub-pixels to be determined, and the remaining sub-pixels are driven by applying the second adjustment method to improve color shift; referring to tables 1 and 2, the luminance difference of the red sub-pixel is greater than that of the green sub-pixel, so the red sub-pixel is set as the sub-pixel to be determined to better improve color shift and graininess; of course, in other display panels with other design requirements, the to-be-determined sub-pixel may also be set as a green sub-pixel, and generally, one sub-pixel with the largest gray scale difference is selected as the to-be-determined sub-pixel. Of course, the remaining two sub-pixels are not judged, and the second adjustment mode is used for driving by default to improve the granular sensation better.
In one embodiment, the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the sub-pixels to be judged comprise a first sub-pixel to be judged and a second sub-pixel to be judged, the first sub-pixel to be judged is all green sub-pixels, and the second sub-pixel to be judged is all red sub-pixels.
In this embodiment, when the luminance difference between the red sub-pixel and the green sub-pixel is large, human eyes can more sensitively feel granular sensation, and thus, the red sub-pixel and the green sub-pixel are used as the sub-pixels to be determined, and the two sub-pixels are respectively subjected to statistical calculation and judgment to select a more applicable adjustment mode.
The color shift of the blue color system is not very serious, so that the blue sub-pixel is not used as the sub-pixel to be judged, and the driving mode with smaller gray scale difference is used for driving by default to improve the granular sensation; of course, since the human eye is not very sensitive to blue, the graininess of the blue color system is not very serious, and thus the driving method with larger gray scale difference can be used as a default to improve the color shift. In addition, the red sub-pixel, the green sub-pixel and the blue sub-pixel may be set as the sub-pixels to be determined, but the blue sub-pixel is driven by the first adjustment method only when the gray scale difference between the corresponding sub-pixel high voltage signal and the corresponding sub-pixel low voltage signal is greater than 100 gray scales.
In one embodiment, the display panel divides pixels into a plurality of blocks according to physical position adjacency; receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; the step S12 of determining whether to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined in the first adjustment manner or the second adjustment manner according to the statistical result includes:
s121, taking each block as a unit, receiving sub-pixel signals of all sub-pixels to be judged, and counting the proportion of the number of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals;
s122: respectively judging whether the proportion of the sub-pixel signals in each signal judgment interval occupying the total number of the sub-pixel signals in the block meets the corresponding preset standard proportion value;
s123, if both the first sub-pixel and the second sub-pixel are satisfied, determining to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined in a second adjusting mode; otherwise, determining to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be judged in the first adjusting mode.
In the embodiment, all pixels are divided into a plurality of blocks according to physical positions, the red sub-pixel and the green sub-pixel of each block are independently used as a sub-pixel to be judged, and the red sub-pixel and the green sub-pixel of each block are independently calculated and judged to select an appropriate adjustment mode.
The dividing of the pixels into blocks by physical adjacent positions means that a predetermined number of pixels are taken as a block in the direction of the data line and the scan line, for example, 10 pixels are taken in the direction of the data line, and 10 pixels are taken in the direction of the scan line, so that a block including 10 × 10 pixels is obtained, and the display panel can be divided into a plurality of blocks by the analogy.
In one embodiment, the display panel divides pixels into a plurality of blocks according to physical position adjacency;
receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; the step of determining whether to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined in the first adjustment mode or the second adjustment mode according to the statistical result comprises the following steps:
counting the number of green sub-pixel signals in each signal judgment interval according to green sub-pixel signals of all green sub-pixels in the block by taking the block as a unit, wherein the number of the green sub-pixel signals occupies the proportion of the total number of the green sub-pixel signals in the block; respectively judging whether the number of the green sub-pixel signals in each signal judgment interval and the proportion of the total number of the green sub-pixel signals meet a preset standard proportion value or not;
if both the first sub-pixel and the second sub-pixel are satisfied, driving the first sub-pixel and the second sub-pixel corresponding to all the green sub-pixels in the block in a second adjusting mode; otherwise, driving the first sub-pixel and the second sub-pixel corresponding to all green sub-pixels in the block in a first adjusting mode;
counting the number of red sub-pixel signals in each signal judgment interval according to green sub-pixel signals of all red sub-pixels in the block by taking the block as a unit, wherein the number accounts for the total number of the red sub-pixel signals in the block; respectively judging the quantity of the red sub-pixel signals in each signal judgment interval and whether the proportion of the total quantity of the red sub-pixel signals in the occupied block meets a preset standard proportion value;
if both the first sub-pixel and the second sub-pixel are satisfied, driving the first sub-pixel and the second sub-pixel corresponding to all the red sub-pixels in the block in a second adjusting mode; otherwise, driving the first sub-pixel and the second sub-pixel corresponding to all the red sub-pixels in the block in the first adjustment mode.
In this embodiment, the red sub-pixel and the green sub-pixel are independently calculated and determined for each block to select an appropriate adjustment mode, so that color shift and graininess can be improved in a targeted manner, and display quality can be improved.
In one embodiment, the signal judgment section is sequentially divided into i signal judgment sections according to the gray scale of the sub-pixel signal of the sub-pixel to be judged, the signal gray scale corresponding to the first signal judgment section is the minimum, and the signal gray scale corresponding to the ith signal judgment section is the maximum;
wherein, the value of i is a natural number more than or equal to 2 and less than or equal to the maximum gray scale level of the display panel.
In the embodiment, the signal judgment interval is divided in sequence according to the signal gray scale of the sub-pixel signal, wherein when the average value of the sub-pixel signal corresponding to the signal judgment interval is close to the 0 gray scale and the 255 gray scale, the gray scale difference between the sub-pixel high-voltage signal and the sub-pixel low-voltage signal is small, the granular sensation is not obvious, and the corresponding sub-pixel to be judged can be driven by adopting a first adjustment mode; the granularity is obvious when the signal judgment interval is correspondingly close to the middle gray scale, for example, when the signal judgment interval is close to the 50 gray scale, at the moment, the corresponding sub-pixel to be judged can be driven by selecting the first adjustment mode to better improve the granularity.
The method comprises the steps of obtaining a high-voltage signal of a sub-pixel and a low-voltage signal of the sub-pixel, wherein the high-voltage signal of the sub-pixel and the low-voltage signal of the sub-pixel which have different gray scale differences are possibly set corresponding to the same average value according to different design requirements of a display panel, so that the judging step of the method is correspondingly adjusted according to different display panels; for reference, if the gray scale difference between the sub-pixel high voltage signal and the sub-pixel low voltage signal corresponding to the signal determination interval is greater than 50, or the luminance difference is greater than 50 nit, the corresponding sub-pixel to be determined can be driven by using the second adjustment mode; on the contrary, if the gray scale difference between the sub-pixel high voltage signal and the sub-pixel low voltage signal corresponding to the signal determination section is less than or equal to 50, or the luminance difference is less than or equal to 50 nits, the corresponding sub-pixel to be determined can be driven by using the first adjustment mode.
Fig. 7 is a flowchart of another driving method according to an embodiment of the invention, and referring to fig. 7, it can be known from fig. 3 to fig. 6 that:
the invention also provides a driving method of the display panel, wherein the display panel comprises a plurality of pixels; the display panel divides the pixels into a plurality of blocks according to physical position adjacency;
the pixels comprise red sub-pixels, green sub-pixels and blue sub-pixels; the pixels comprise a first to-be-determined sub-pixel and a second to-be-determined sub-pixel, the first to-be-determined sub-pixel is all green sub-pixels in a corresponding block, and the second to-be-determined sub-pixel is all red sub-pixels in the corresponding block;
two adjacent green sub-pixels are used as a green judgment sub-pixel group, and each green judgment sub-pixel group comprises a first green sub-pixel and a second green sub-pixel; two adjacent red sub-pixels are used as a red judging sub-pixel group, and each red judging sub-pixel group comprises a first red sub-pixel and a second red sub-pixel;
the driving method includes the steps of:
s21, dividing the sub-pixel signal corresponding to the green sub-pixel into i signal judgment intervals according to the gray scale in advance, and simultaneously dividing the sub-pixel signal corresponding to the red sub-pixel into j signal judgment intervals according to the gray scale in advance; the value of i is a natural number which is more than or equal to 2 and is less than or equal to the maximum gray scale level of the display panel; j is a natural number more than or equal to 2 and less than or equal to the maximum gray scale level of the display panel;
s22, counting the number of green sub-pixel signals in each signal judgment interval according to the green sub-pixel signals of all green sub-pixels in the block by taking the block as a unit, wherein the number accounts for the total number of the green sub-pixel signals in the block; respectively judging whether the number of the green sub-pixel signals in each signal judgment interval and the proportion of the total number of the green sub-pixel signals meet a preset standard proportion value or not;
s231, if the first green sub-pixel and the second green sub-pixel in each green judgment sub-pixel group are both satisfied, the original sub-pixel signals corresponding to the first green sub-pixel and the second green sub-pixel in each green judgment sub-pixel group are not processed and are used for driving the corresponding first green sub-pixel and the corresponding second green sub-pixel in the block;
s232, if not, averaging the gray-scale values corresponding to the original sub-pixel signals corresponding to the first green sub-pixel and the second green sub-pixel in each green judgment sub-pixel group, and then finding out the corresponding sub-pixel high-voltage signal and sub-pixel low-voltage signal according to the average value and a preset lookup table so as to drive the corresponding first green sub-pixel and second green sub-pixel in the block;
s24, counting the number of red sub-pixel signals in each signal judgment interval according to the red sub-pixel signals of all red sub-pixels in the block by taking the block as a unit, wherein the number accounts for the total number of the red sub-pixel signals in the block; respectively judging whether the number of the red sub-pixel signals in each signal judgment interval and the proportion of the red sub-pixel signals in the total number meet a preset standard proportion value;
s251, if both are satisfied, the original sub-pixel signals corresponding to the first red sub-pixel and the second red sub-pixel in each red judgment sub-pixel group are used for driving the corresponding first red sub-pixel and the second red sub-pixel in the block without processing;
s252, if not, averaging the gray-scale values corresponding to the original sub-pixel signals corresponding to the first red sub-pixel and the second red sub-pixel in each red judgment sub-pixel group, and then finding out the corresponding sub-pixel high-voltage signal and sub-pixel low-voltage signal according to the average value and a preset lookup table so as to drive the corresponding first red sub-pixel and second red sub-pixel in the block;
s26, dividing two adjacent blue sub-pixels into a group, averaging the gray scale values corresponding to the original sub-pixel signals corresponding to each group, and finding out the corresponding sub-pixel high-voltage signals and sub-pixel low-voltage signals according to the average values and a preset lookup table so as to drive the two corresponding adjacent blue sub-pixels in the block respectively;
the average gray scale of the sub-pixel high-voltage signal and the sub-pixel low-voltage signal corresponding to each sub-pixel group to be determined is equivalent to the average gray scale of the two corresponding original sub-pixel signals; the gray scale difference between the sub-pixel high voltage signal and the sub-pixel low voltage signal is larger than the gray scale difference between the two corresponding original sub-pixel signals.
The steps may be executed synchronously or sequentially without conflict. Of course, the determination conditions of the present invention are different according to the difference of the display panel, but at least the signal determination section with the largest gray scale difference needs to select the second adjustment method to drive the corresponding sub-pixel to be determined. Meanwhile, at least the signal judgment section with the minimum gray scale difference needs to be driven by a first adjustment mode.
The maximum values of i and j depend on the gray scale division of the image, for example, if the brightness of the display device is divided into 128 levels, the maximum gray scale level is 128, and the maximum value of the corresponding i is 128; when the gray scale level is divided into 512 levels, the maximum gray scale level is 512, and the corresponding maximum value of i is 512; similarly, other gray scale division schemes are possible.
Fig. 8 is a schematic diagram of a driving system of a display panel according to an embodiment of the invention, and it can be known from fig. 8 that:
the invention also provides a driving system of a display panel, wherein the display panel comprises a plurality of pixels, and each pixel comprises a plurality of different-color sub-pixels; at least one of the sub-pixels is a sub-pixel to be judged, two adjacent sub-pixels to be judged with the same color are used as a sub-pixel group to be judged, and each sub-pixel group to be judged comprises a first sub-pixel and a second sub-pixel;
the drive system 10 includes: the interval dividing module 100 is an interval dividing circuit, and the interval dividing module 100 divides a sub-pixel signal corresponding to a sub-pixel to be determined into a plurality of signal determination intervals in advance; the processing module 200 is a processing circuit, and the processing module 200 receives sub-pixel signals of all sub-pixels to be determined and counts the distribution of the sub-pixel signals in each signal determination interval; and determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be judged are driven in a first adjusting mode or a second adjusting mode according to the statistical result.
It should be noted that, the limitations of the steps involved in the present disclosure are not considered to limit the order of the steps without affecting the implementation of the specific embodiments, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present disclosure can be implemented, all should be considered to belong to the protection scope of the present disclosure.
The technical scheme of the invention can be combined and applied on the premise of no conflict.
The technical solution of the present invention can be widely applied to various display panels, such as a Twisted Nematic (TN) display panel, an In-Plane Switching (IPS) display panel, a Vertical Alignment (VA) display panel, and a Multi-Domain Vertical Alignment (MVA) display panel, and of course, other types of display panels, such as an Organic Light-Emitting Diode (OLED) display panel, can be applied to the above solution.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. A driving method of a display panel, wherein the display panel comprises a plurality of pixels, each of the pixels comprises a plurality of sub-pixels with different colors; at least one of the sub-pixels is a sub-pixel to be judged, two adjacent sub-pixels to be judged with the same color are used as a sub-pixel group to be judged, and each sub-pixel group to be judged comprises a first sub-pixel and a second sub-pixel;
the driving method includes the steps of:
dividing sub-pixel signals corresponding to sub-pixels to be judged into a plurality of signal judgment intervals in advance;
receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; determining to drive a first sub-pixel and a second sub-pixel corresponding to the sub-pixel to be judged in a first adjusting mode or a second adjusting mode according to the statistical result;
under the first adjustment mode and the second adjustment mode, the average gray scales of the sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel are equivalent, and the gray scale difference is different;
the first adjustment mode is that after the gray-scale values corresponding to the original sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel in each sub-pixel group to be determined are averaged, the corresponding sub-pixel high-voltage signal and sub-pixel low-voltage signal are found according to the average value and a preset lookup table, and the first adjustment mode is used for driving the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined;
the second adjustment mode is that original sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel in each sub-pixel group to be judged are not processed and are used for driving the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be judged;
the step of receiving sub-pixel signals of all sub-pixels to be judged and counting the distribution condition of the sub-pixel signals in each signal judgment interval comprises the following steps:
receiving sub-pixel signals of all sub-pixels to be judged, and counting the proportion of the number of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals;
respectively judging whether the proportion of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals meets the corresponding preset standard proportion value;
if both the first sub-pixel and the second sub-pixel are satisfied, determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined are driven in a second adjusting mode; otherwise, determining to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be judged in the first adjusting mode.
2. The method of driving a display panel according to claim 1, wherein the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
the sub-pixels to be judged are all red sub-pixels.
3. The method of driving a display panel according to claim 1, wherein the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
the sub-pixels to be judged comprise a first sub-pixel to be judged and a second sub-pixel to be judged, the first sub-pixel to be judged is all green sub-pixels, and the second sub-pixel to be judged is all red sub-pixels.
4. The method according to claim 1, wherein the display panel divides the pixels into a plurality of blocks according to physical positions;
receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; the step of determining whether to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined in the first adjustment mode or the second adjustment mode according to the statistical result comprises the following steps:
receiving sub-pixel signals of all sub-pixels to be judged by taking each block as a unit, and counting the proportion of the number of the sub-pixel signals in each signal judgment interval to the total number of the sub-pixel signals; respectively judging whether the proportion of the sub-pixel signals in each signal judgment interval occupying the total number of the sub-pixel signals in the block meets the corresponding preset standard proportion value;
if both the first sub-pixel and the second sub-pixel are satisfied, determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined are driven in a second adjusting mode; otherwise, determining to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be judged in the first adjusting mode.
5. The method according to claim 3, wherein the display panel divides the pixels into a plurality of blocks according to physical positions;
receiving sub-pixel signals of all sub-pixels to be judged, and counting the distribution condition of the sub-pixel signals in each signal judgment interval; the step of determining whether to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined in the first adjustment mode or the second adjustment mode according to the statistical result comprises the following steps:
counting the number of green sub-pixel signals in each signal judgment interval according to green sub-pixel signals of all green sub-pixels in the block by taking the block as a unit, wherein the number of the green sub-pixel signals occupies the proportion of the total number of the green sub-pixel signals in the block; respectively judging whether the number of the green sub-pixel signals in each signal judgment interval and the proportion of the total number of the green sub-pixel signals meet a preset standard proportion value or not;
if both the first sub-pixel and the second sub-pixel are satisfied, driving the first sub-pixel and the second sub-pixel corresponding to all the green sub-pixels in the block in a second adjusting mode; otherwise, driving the first sub-pixel and the second sub-pixel corresponding to all green sub-pixels in the block in a first adjusting mode;
counting the number of red sub-pixel signals in each signal judgment interval according to green sub-pixel signals of all red sub-pixels in the block by taking the block as a unit, wherein the number accounts for the total number of the red sub-pixel signals in the block; respectively judging the quantity of the red sub-pixel signals in each signal judgment interval and whether the proportion of the total quantity of the red sub-pixel signals in the occupied block meets a preset standard proportion value;
if both the first sub-pixel and the second sub-pixel are satisfied, driving the first sub-pixel and the second sub-pixel corresponding to all the red sub-pixels in the block in a second adjusting mode; otherwise, driving the first sub-pixel and the second sub-pixel corresponding to all the red sub-pixels in the block in the first adjustment mode.
6. The method according to claim 1, wherein the signal determination section is sequentially divided into i signal determination sections according to the gray scale of the sub-pixel signal of the sub-pixel to be determined, the first signal determination section has the smallest signal gray scale, and the ith signal determination section has the largest signal gray scale;
wherein, the value of i is a natural number more than or equal to 2 and less than or equal to the maximum gray scale level of the display panel.
7. A driving method of a display panel, wherein the display panel includes a plurality of pixels; the display panel divides the pixels into a plurality of blocks according to physical position adjacency;
the pixels comprise red sub-pixels, green sub-pixels and blue sub-pixels; the pixels comprise a first to-be-determined sub-pixel and a second to-be-determined sub-pixel, the first to-be-determined sub-pixel is all green sub-pixels in a corresponding block, and the second to-be-determined sub-pixel is all red sub-pixels in the corresponding block;
two adjacent green sub-pixels are used as a green judgment sub-pixel group, and each green judgment sub-pixel group comprises a first green sub-pixel and a second green sub-pixel; two adjacent red sub-pixels are used as a red judging sub-pixel group, and each red judging sub-pixel group comprises a first red sub-pixel and a second red sub-pixel;
the driving method includes the steps of:
dividing sub-pixel signals corresponding to green sub-pixels into i signal judgment intervals in sequence according to the gray scale, and simultaneously dividing sub-pixel signals corresponding to red sub-pixels into j signal judgment intervals in sequence according to the gray scale; the value of i is a natural number which is more than or equal to 2 and is less than or equal to the maximum gray scale level of the display panel; j is a natural number more than or equal to 2 and less than or equal to the maximum gray scale level of the display panel;
counting the number of green sub-pixel signals in each signal judgment interval according to green sub-pixel signals of all green sub-pixels in the block by taking the block as a unit, wherein the number of the green sub-pixel signals occupies the proportion of the total number of the green sub-pixel signals in the block; respectively judging whether the number of the green sub-pixel signals in each signal judgment interval and the proportion of the total number of the green sub-pixel signals meet a preset standard proportion value or not;
if the first green sub-pixel signal and the second green sub-pixel signal are both satisfied, the original sub-pixel signals corresponding to the first green sub-pixel and the second green sub-pixel in each green judgment sub-pixel group are not processed and are used for driving the corresponding first green sub-pixel and the corresponding second green sub-pixel in the driving block; otherwise, after averaging the gray-scale values corresponding to the original sub-pixel signals corresponding to the first green sub-pixel and the second green sub-pixel in each green judgment sub-pixel group, finding the corresponding sub-pixel high-voltage signal and sub-pixel low-voltage signal according to the average value and a preset lookup table, and driving the corresponding first green sub-pixel and the corresponding second green sub-pixel in the block;
counting the number of red sub-pixel signals in each signal judgment interval according to the red sub-pixel signals of all red sub-pixels in the block by taking the block as a unit, wherein the number accounts for the total number of the red sub-pixel signals in the block; respectively judging whether the number of the red sub-pixel signals in each signal judgment interval and the proportion of the red sub-pixel signals in the total number meet a preset standard proportion value;
if both the first red sub-pixel and the second red sub-pixel in each red judgment sub-pixel group meet the requirements, original sub-pixel signals corresponding to the first red sub-pixel and the second red sub-pixel in each red judgment sub-pixel group are not processed and are used for driving the corresponding first red sub-pixel and the corresponding second red sub-pixel in the block; otherwise, after averaging the gray-scale values corresponding to the original sub-pixel signals corresponding to the first red sub-pixel and the second red sub-pixel in each red judgment sub-pixel group, finding the corresponding sub-pixel high-voltage signal and sub-pixel low-voltage signal according to the average value and a preset lookup table, and driving the corresponding first red sub-pixel and second red sub-pixel in the block;
dividing two adjacent blue sub-pixels into a group, averaging the gray scale values corresponding to the original sub-pixel signals corresponding to each group, and finding out corresponding sub-pixel high-voltage signals and sub-pixel low-voltage signals according to the average values and a preset lookup table so as to respectively drive two adjacent blue sub-pixels corresponding to the block;
the average gray scale of the sub-pixel high-voltage signal and the sub-pixel low-voltage signal corresponding to each sub-pixel group to be determined is equivalent to the average gray scale of the two corresponding original sub-pixel signals; the gray scale difference between the sub-pixel high voltage signal and the sub-pixel low voltage signal is larger than the gray scale difference between the two corresponding original sub-pixel signals.
8. A driving system of a display panel using the driving method of any one of claims 1 to 7, wherein the display panel includes a plurality of pixels, each of the pixels including a plurality of different color sub-pixels; at least one of the sub-pixels is a sub-pixel to be judged, two adjacent sub-pixels to be judged with the same color are used as a sub-pixel group to be judged, and each sub-pixel group to be judged comprises a first sub-pixel and a second sub-pixel;
the drive system includes:
the interval division module is used for dividing sub-pixel signals corresponding to the sub-pixels to be judged into a plurality of signal judgment intervals in advance;
the processing module is used for receiving the sub-pixel signals of all the sub-pixels to be judged and counting the distribution condition of the sub-pixel signals in each signal judgment interval; and determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be judged are driven in a first adjusting mode or a second adjusting mode according to the statistical result.
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