CN109859706B

CN109859706B - Driving method and driving system of display panel

Info

Publication number: CN109859706B
Application number: CN201910089251.4A
Authority: CN
Inventors: 单剑锋
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2021-01-08
Anticipated expiration: 2039-01-30
Also published as: CN109859706A

Abstract

The invention discloses a driving method and a driving system of a display panel, wherein the driving method comprises the following steps: dividing the signal into a plurality of signal judgment intervals in advance and corresponding to preset conditions of the signal judgment intervals; receiving the first color signal, and converting the first color signal to obtain a second color signal; comparing and judging a signal judgment interval in which the second color signal is positioned, and judging whether the corresponding preset condition is met; dividing the sub-pixels to be judged into a plurality of periods by taking 2n adjacent sub-pixels to be judged with the same color as a period according to a signal judgment interval where the second color signal is located and a preset condition judgment result, and respectively determining a first driving mode sub-pixel and a second driving mode sub-pixel in each period by taking the sub-pixel group to be judged as a unit; the first driving method sub-pixels are driven in a first driving manner, and the second driving method sub-pixels are driven in a second driving manner.

Description

Driving method and driving system of display panel

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 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 obvious 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, namely, 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 provides a driving method and a driving system of a display panel capable of improving color cast.

The invention discloses 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 the second color signal corresponding to the pixel into a plurality of signal judgment intervals in advance and corresponding to preset conditions of the signal judgment intervals;

receiving first color signals corresponding to all pixels, and converting the first color signals to obtain a second color signal;

comparing and judging a signal judgment interval in which the second color signal is positioned, and judging whether a preset condition corresponding to the signal judgment interval is met or not; dividing the sub-pixels to be judged into a plurality of periods by taking 2n adjacent sub-pixels to be judged with the same color as a period according to a signal judgment interval where the second color signal is located and a preset condition judgment result, and respectively determining a first driving mode sub-pixel and a second driving mode sub-pixel in each period by taking the sub-pixel group to be judged as a unit;

driving a first sub-pixel and a second sub-pixel corresponding to the sub-pixel in the first driving mode in a first driving mode, and simultaneously driving the first sub-pixel and the second sub-pixel corresponding to the sub-pixel in the second driving mode in a second driving mode;

under the first driving mode and the second driving mode, the average gray scales of sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel are equivalent, and the gray scale difference is different; n is a natural number more than or equal to 1, and the value of 2n is less than or equal to the total number of the sub-pixels to be judged.

Optionally, the hue range of the second color signal is: 0-360 degrees, corresponding to 0-360 degrees;

the step of dividing the first color signal into a plurality of signal judgment sections according to the second color signal corresponding to the pixel in advance comprises:

dividing the second color signal with hue H satisfying the following formula into a first signal judgment interval: h is more than 0 and less than or equal to 45, or H is more than 315 and less than or equal to 360;

dividing a second color signal with hue H satisfying the following formula into a second signal judgment interval: h is more than 45 and less than or equal to 135;

dividing the second color signal with hue H satisfying the following formula into a third signal judgment section: h is more than 135 and less than or equal to 205;

dividing the second color signal with hue H satisfying the following formula into a fourth signal judgment section: h is more than 205 and less than or equal to 245;

dividing the second color signal with hue H satisfying the following formula into a fifth signal judgment section: h is more than 245 and less than or equal to 295;

dividing the second color signal with hue H satisfying the following formula into a sixth signal judgment section: h is more than 295 and less than or equal to 315.

Optionally, the preset condition is divided according to the chroma of the second color signal; when the chroma C of the second color signal satisfies the following formula: and when the C is more than or equal to 40 and less than or equal to 80, judging that the preset condition corresponding to the signal judgment interval is met.

Optionally, the comparison and judgment are performed on a signal judgment interval where the second color signal is located, and at the same time, whether a preset condition corresponding to the located signal judgment interval is met is judged; the step of determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined are respectively driven in the first driving mode or the second driving mode according to the signal judgment interval where the second color signal is located and the preset condition judgment result comprises the following steps:

comparing the signal judgment interval where the second color signal is located; if the signal judgment interval in which the second color signal is located is the first signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixels into a plurality of periods by taking the 2 red sub-pixels as a period, determining the 2 red sub-pixels as first driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit, and simultaneously determining all the green sub-pixels as second driving mode sub-pixels;

if the signal judgment interval in which the second color signal is located is the second signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixel into a plurality of periods by taking 4 red sub-pixels as a period, determining 2 red sub-pixels as first driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit, simultaneously dividing the green sub-pixel into a plurality of periods by taking 4 green sub-pixels as a period, and determining 2 green sub-pixels as first driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit;

if the signal judgment interval in which the second color signal is located is a third signal judgment interval and meets the corresponding preset condition, determining that all the red sub-pixels are sub-pixels in the second driving mode, meanwhile, dividing the green sub-pixels into a plurality of periods by taking 2 green sub-pixels as a period, and determining 2 green sub-pixels as sub-pixels in the first driving mode in each period by taking the sub-pixel group to be determined as a unit;

if the signal judgment interval in which the second color signal is located is the fourth signal judgment interval and meets the corresponding preset condition, determining that all the red sub-pixels are the second driving mode sub-pixels, meanwhile, dividing the green sub-pixels into a plurality of periods by taking 4 green sub-pixels as a period, and determining 2 green sub-pixels as the first driving mode sub-pixels in each period by taking the sub-pixel group to be determined as a unit;

if the signal judgment interval in which the second color signal is located is the fifth signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixel into a plurality of periods by taking 8 red sub-pixels as a period, determining 2 red sub-pixels as first driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit, and simultaneously dividing the green sub-pixels into a plurality of periods by taking 8 green sub-pixels as a period, and determining 2 green sub-pixels as first driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit;

if the signal judgment interval in which the second color signal is located is the sixth signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixels into a plurality of periods by taking 4 red sub-pixels as a period, determining 2 red sub-pixels as second driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit, and simultaneously determining all green sub-pixels as second driving mode sub-pixels.

Optionally, the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the first color signal is a pixel signal under a red-green-blue system, and the second color signal is a pixel signal under a lightness chroma hue system;

the step of receiving the first color signals corresponding to all the pixels and converting the first color signals to obtain a second color signal includes:

receiving red sub-pixel signals, green sub-pixel signals and blue sub-pixel signals corresponding to red sub-pixels, green sub-pixels and blue sub-pixels under a red-green-blue system;

calculating a red average value of all red sub-pixel signals, calculating a green average value of all green sub-pixel signals, and calculating a blue average value of all blue sub-pixel signals;

and converting according to the red average value, the green average value and the blue average value to obtain a second color signal under a lightness chroma hue system.

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;

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; and 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.

Optionally, the display panel divides the pixels into a plurality of blocks according to physical positions;

comparing and judging a signal judgment interval in which the second color signal is positioned, and judging whether a preset condition corresponding to the signal judgment interval is met or not; the step of determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined are respectively driven in the first driving mode or the second driving mode according to the signal judgment interval where the second color signal is located and the preset condition judgment result comprises the following steps:

comparing and judging the signal judgment interval where the second color signal corresponding to each block is located by taking each block as a unit, and meanwhile, judging whether a preset condition corresponding to the signal judgment interval is met; and determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined are respectively driven in a first driving mode or a second driving mode according to the signal judgment interval where the second color signal is located and the preset condition judgment result.

Optionally, the first driving method 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 driving 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.

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;

the driving method includes the steps of:

the hue H satisfies the formula in advance: h is more than 0 and less than or equal to 45, or H is more than 315 and less than or equal to 360, and the second color signal is divided into a first signal judgment interval; the hue H satisfies the formula: the second color signal with H more than 45 and less than or equal to 135 is divided into a second signal judgment interval: the hue H satisfies the formula: dividing the second color signal with H more than 135 and less than or equal to 205 into a third signal judgment interval; the hue H satisfies the formula: the second color signal with H more than 205 and less than or equal to 245 is divided into a fourth signal judgment interval: the hue H satisfies the formula: dividing the second color signal with H more than 245 and less than or equal to 295 into a fifth signal judgment interval; the hue H satisfies the formula: dividing the second color signal with H more than 295 and less than or equal to 315 into a sixth signal judgment interval; setting preset conditions corresponding to a first signal judgment interval, a second signal judgment interval, a third signal judgment interval, a fourth signal judgment interval, a fifth signal judgment interval and a sixth signal judgment interval; setting chroma preset conditions for a first signal judgment interval, a second signal judgment interval, a third signal judgment interval, a fourth signal judgment interval, a fifth signal judgment interval and a sixth signal judgment interval respectively;

receiving red sub-pixel signals, green sub-pixel signals and blue sub-pixel signals corresponding to red sub-pixels, green sub-pixels and blue sub-pixels under a red-green-blue system by taking a block as a unit; calculating a red average value of all red sub-pixel signals, calculating a green average value of all green sub-pixel signals, and calculating a blue average value of all blue sub-pixel signals; converting the red average value, the green average value and the blue average value to obtain a second color signal under a lightness chroma hue system;

comparing the signal judgment intervals in which the second color signals are positioned by taking the blocks as units, and judging whether preset conditions corresponding to the signal judgment intervals are met or not;

if the signal judgment interval in which the second color signal is located is the first signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixels into a plurality of periods by taking the 2 red sub-pixels as a period, determining the 2 red sub-pixels as first driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit, and simultaneously determining all the green sub-pixels as second driving mode sub-pixels;

if the signal judgment interval in which the second color signal is located is a sixth signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixels into a plurality of periods by taking 4 red sub-pixels as a period, determining 2 red sub-pixels as second driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit, and simultaneously determining all green sub-pixels as second driving mode sub-pixels;

determining all the blue sub-pixels as first driving mode sub-pixels;

driving all the first driving mode sub-pixels in a first driving mode, and simultaneously driving all the second driving mode sub-pixels in a second driving mode;

the first driving 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 driving mode is used for driving the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined; the second driving 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 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.

In the embodiment, the blue sub-pixel is determined as the first driving mode sub-pixel by default, which is beneficial to improving the color cast problem; in addition, on the premise of no conflict, the steps can be executed synchronously or sequentially.

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 includes: the preset module is divided into a plurality of signal judgment intervals according to the second color signals corresponding to the pixels in advance and corresponds to preset conditions of the signal judgment intervals; the conversion module is used for receiving the first color signals corresponding to all the pixels and converting the first color signals to obtain a second color signal;

the processing module compares and judges the signal judgment interval where the second color signal is located, and simultaneously judges whether preset conditions corresponding to the signal judgment interval are met or not; and dividing the sub-pixel to be determined into a plurality of periods by taking 2n adjacent sub-pixels to be determined of the same color as a period according to the signal determination interval where the second color signal is located and the preset condition determination result, and respectively determining the first driving mode sub-pixel and the second driving mode sub-pixel in each period by taking the sub-pixel group to be determined as a unit.

The color shift is improved relative to a scheme in which each sub-pixel (e.g., a red sub-pixel, a green sub-pixel, and a blue sub-pixel) is divided into a main sub-pixel and a sub-pixel, and a discharge switch and a discharge capacitor are connected to the sub-pixels. The invention uses two adjacent sub-pixel signals to realize brightness presentation, but before realizing brightness presentation, a first color signal of the frame image is converted into a second color signal, a signal judgment interval where the second color signal is located is judged, and the condition of meeting preset conditions is judged so as to determine the color cast and granular sensation condition of the frame image, thereby selecting an applicable driving mode to drive the sub-pixel to be judged; specifically, if the color cast is obvious, most of the sub-pixels to be determined or all of the sub-pixels to be determined can be determined to be driven by a driving mode with larger gray scale difference in a period so as to improve the color cast; similarly, if the color shift is not obvious, most or all of the sub-pixels to be determined in the period can be driven by a driving method with smaller gray scale difference, so as to improve the granular sensation.

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 schematic diagram of color shift of various representative color systems of a liquid crystal display;

FIG. 2 is a first schematic diagram of an exemplary scheme for dividing a pixel into primary/secondary pixels;

FIG. 3 is a second schematic diagram of an exemplary scheme for dividing a pixel into primary/secondary pixels;

FIG. 4 is a flow chart of a driving method according to an embodiment of the present invention;

FIG. 5 is a flow chart of a driving method according to another embodiment of the present invention;

FIG. 6 is a schematic diagram of a pixel arrangement of a display panel according to an embodiment of the invention;

FIG. 7 is a schematic diagram illustrating pixel signal driving of a display panel according to an embodiment of the invention;

FIG. 8 is a flow chart of a driving method according to another embodiment of the present invention;

FIG. 9 is a schematic diagram of a driving system of a display panel according to the present invention.

10, a driving system; 100. presetting a module; 200. a conversion module; 300. 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.

Fig. 1 is a schematic diagram of color shift of various representative color systems of a liquid crystal display, and referring to fig. 1, it can be clearly seen that, more or less color shifts exist in each representative color system, and the larger the ordinate is, the more serious the color shift is, and the more serious the color shift is in R color system and green color system.

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. 2 is a first schematic diagram of an exemplary scheme for dividing a pixel into primary/secondary pixels, and fig. 3 is a second schematic diagram of an exemplary scheme for dividing a pixel into primary/secondary pixels, as can be seen with reference to fig. 2 and 3, 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 primary and secondary pixels 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 Part A in fig. 1, and the side-view brightness seen by the small voltage changes along with the gray scale as Part B 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. 4 is a flow chart of a driving method according to an embodiment of the present invention, and fig. 5 is a flow chart of a driving method according to another embodiment of the present invention, as can be seen from fig. 4 and fig. 5:

the driving method includes the steps of:

s11, dividing the second color signal into multiple signal judgment sections according to the pixel and the preset conditions corresponding to the signal judgment sections;

s12, receiving the first color signals corresponding to all the pixels, and converting the first color signals to obtain a second color signal;

s13, comparing and judging the signal judgment interval where the second color signal is located, and meanwhile, judging whether the preset condition corresponding to the signal judgment interval is met; dividing the sub-pixels to be judged into a plurality of periods by taking 2n adjacent sub-pixels to be judged with the same color as a period according to a signal judgment interval where the second color signal is located and a preset condition judgment result, and respectively determining a first driving mode sub-pixel and a second driving mode sub-pixel in each period by taking the sub-pixel group to be judged as a unit;

s124, driving a first sub-pixel and a second sub-pixel corresponding to the sub-pixel of the first driving mode in a first driving mode, and simultaneously driving the first sub-pixel and the second sub-pixel corresponding to the sub-pixel of the second driving mode in a second driving mode;

The adjacent means that the sub-pixels of the same color are adjacent to each other at the positions along the scan line or along the data line in the display panel, for example, in fig. 5, the R1,1 and R2,1 are adjacent to each other along the data line, and of course, the display panel has different architectures and can also be adjacent to each other along the scan line; similarly, 2n adjacent subpixels to be determined in the same color are in one period, and when a red subpixel is a subpixel signal to be determined, for example, 2, 4, and 6 … adjacent red subpixels are in one period, the red subpixel is divided into a plurality of periods, where a value of n may be determined according to a signal determination interval in which an average value is located, and when a gray scale difference between a corresponding subpixel high voltage signal and a subpixel low voltage signal of the subpixel to be determined in the signal determination interval in which the average value is located is larger, the value of n is larger; of course, the value of n can also be modified according to the preset value.

With respect to the scheme shown in fig. 1 and 2, the color shift is improved by dividing each Sub-pixel (e.g., red, green, and blue Sub-pixels) into Main/Sub pixels and connecting a discharge switch and a discharge capacitor to the Sub-pixels. The invention uses two adjacent sub-pixel signals to realize brightness presentation, but before realizing brightness presentation, a first color signal of the frame image is converted into a second color signal, a signal judgment interval where the second color signal is located is judged, and the condition of meeting preset conditions is judged so as to determine the color cast and granular sensation condition of the frame image, thereby selecting an applicable driving mode to drive the sub-pixel to be judged; specifically, if the color cast is obvious, most of the sub-pixels to be determined or all of the sub-pixels to be determined can be determined to be driven by a driving mode with larger gray scale difference in a period so as to improve the color cast; similarly, if the color shift is not obvious, most or all of the sub-pixels to be determined in the period can be driven by a driving method with smaller gray scale difference, so as to improve the granular sensation.

Wherein, most of the sub-pixels are larger than one half and smaller than or equal to the total number of the sub-pixels to be determined in the period.

The invention does not change the structure of the pixel, so the aperture ratio is not reduced, concretely, the average value of brightness is presented by two adjacent same-color sub-pixels, and at least two driving modes with different gray scale differences are arranged for selection, thus the color cast or the granular sensation can be improved by proper signal design on the basis of not reducing the aperture ratio.

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 one embodiment, the hue ranges of the second color signals are: 0-360 degrees, corresponding to 0-360 degrees;

dividing the second color signal with hue H satisfying the following formula into a sixth signal judgment section: h is more than 295 and less than or equal to 315. In this embodiment, the second color signal is divided into a plurality of signal determination sections according to different hues, so as to determine whether the color shift degree of the section is severe, for example, if the other conditions are the same, if the second color signal is located in the first signal determination section or the red hue section, and the third signal determination section or the green hue section, the color shift is severe, and at this time, the driving method with large gray level difference is preferentially selected to drive the sub-pixel to be determined to improve the color shift; and if the second color signal is located in the fifth signal judgment interval, the hue does not deviate to the red hue or the green hue, and at the moment, the hue deviation is very light, and a driving mode with small gray level difference is preferentially selected to drive the sub-pixel to be judged so as to improve the granular sensation.

The preset condition may be set corresponding to the first signal determination interval as CTL1 ≦ C ≦ CTH2, the preset condition may be set corresponding to the second signal determination interval as CTL3 ≦ C ≦ CTH4, the preset condition may be set corresponding to the third signal determination interval as CTL5 ≦ C ≦ CTH6, the preset condition may be set corresponding to the fourth signal determination interval as CTL7 ≦ C ≦ CTH8, the preset condition may be set corresponding to the fifth signal determination interval as CTL9 ≦ C ≦ CTH10, and the preset condition may be set corresponding to the sixth signal determination interval as CTL11 ≦ C ≦ CTH12, where CTL1, CHH 5, CTL3, CTH4, CTL5, CTH 5, CTL7, CTL 8, CTL 82 9, CTH 56, CTL11, and CTH12 are predefined chroma ranges; wherein C is the chroma of the second color signal. Specifically, the CTL1, CTL3, CTL5, CTL7, CTL9 and CTL11 may be provided in the same manner or in different manners; the CTH2, CTH4, CTH6, CTH8, CTH10, and CTH12 may be provided in the same manner or in different manners. The hue is matched with the chroma, so that the color cast severity degree of the current picture can be better reflected.

In one embodiment, the preset condition is divided according to the chroma of the second color signal; when the chroma C of the second color signal satisfies the following formula: and when the C is more than or equal to 40 and less than or equal to 80, judging that the preset condition corresponding to the signal judgment interval is met. In this embodiment, for the sub-pixel signals of the same color sub-pixel, in the range of chroma 0-100, since chroma is closely related to hue, the closer to chroma 50, the closer to the middle chroma, the corresponding hue is also in the middle hue, and the color cast is relatively serious at this time, and at this time, a color cast improvement mechanism is started, so that a better color cast improvement effect can be achieved; meanwhile, in a general picture, the occupation ratio of the intermediate chroma is large, and the color cast is also required to be improved most. Particularly, when the hue sections are a red hue section and a green hue section, the color shift is relatively serious, and when the chroma is in a section of 40 to 80, the color shift of the current picture is very serious, so that in this case, the pixels need to be driven in the first driving manner to improve the color shift.

More specifically, the preset conditions may be set to different ranges for different hue intervals, for example, the preset condition corresponding to the red signal judgment interval may be set to 40 ≦ C ≦ 80, and the preset condition corresponding to the green signal judgment interval may be set to 45 ≦ C ≦ 75.

In an embodiment, the comparing and determining determines a signal determination interval in which the second color signal is located, and at the same time, determines whether a preset condition corresponding to the signal determination interval is satisfied; the step of determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined are respectively driven in the first driving mode or the second driving mode according to the signal judgment interval where the second color signal is located and the preset condition judgment result comprises the following steps:

if the signal judgment interval in which the second color signal is located is the sixth signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixels into a plurality of periods by taking 4 red sub-pixels as a period, determining 2 red sub-pixels as second driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit, and simultaneously determining all green sub-pixels as second driving mode sub-pixels. In this embodiment, when the second color signal is located in the first signal determination interval, the hue of the current picture is biased to red, and if the corresponding preset condition is satisfied, the degree of color bias of the current picture is very severe, so that all red sub-pixels are determined to be the first driving mode sub-pixels to improve color bias, and meanwhile, the number of sub-pixels driven by the first driving mode simultaneously can be reduced to improve granular sensation by determining all green sub-pixels to be the second driving mode sub-pixels; similarly, when the second color signal is located in the third signal judgment section, the color shift of the green hue is also improved through similar operation; when the second color signal is located in the second signal judgment interval, the fourth signal judgment interval and the sixth signal judgment interval, the color cast of the current picture is biased to a red hue or a green hue, at the moment, two of the sub-pixels to be judged are determined to be the first driving mode sub-pixels by taking 4 or 8 sub-pixels to be judged as a period, and the rest of the sub-pixels to be judged are determined to be the second driving mode sub-pixels, so that the color cast and the granular sensation of the corresponding sub-pixels to be judged can be improved, and the display quality is prevented from being seriously influenced by the color cast and the granular sensation; in addition, when the second color signal is located in the fifth signal judgment section, the second color signal is not biased to the red color system or the green color system, and the color bias is light, the sub-pixel to be judged can be determined as the sub-pixel of the second driving method in order to improve the granular sensation, so that the granular sensation is improved.

In one embodiment, the pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; the first color signal is a pixel signal under an RGB system, and the second color signal is a pixel signal under an LCH system;

the step S12 of receiving the first color signals corresponding to all the pixels and converting the first color signals into a second color signal includes:

s121: receiving red sub-pixel signals, green sub-pixel signals and blue sub-pixel signals corresponding to red sub-pixels, green sub-pixels and blue sub-pixels under an RGB system;

s122: calculating a red average value of all red sub-pixel signals, calculating a green average value of all green sub-pixel signals, and calculating a blue average value of all blue sub-pixel signals;

s123: a second color signal under Lightness Chroma Hue system (Lightness, Chroma, Hue, LCH) is obtained by conversion from the red average, the green average, and the blue average. In the embodiment, calculating the red average value of all red sub-pixel signals, calculating the green average value of all green sub-pixel signals and calculating the blue average value of all blue sub-pixel signals, and converting the red average value and the green average value to obtain a second color signal under an LCH system; the second color signal is used for reflecting the display characteristics of the sub-pixel to be judged, so that the color cast degree of the sub-pixel to be judged is judged, the applicable driving mode can be conveniently selected to drive the sub-pixel to be judged, and the display effect is favorably improved.

Fig. 6 is a schematic diagram of a pixel arrangement of a display panel according to an embodiment of the invention, fig. 7 is a schematic diagram of a pixel signal driving of a display panel according to an embodiment of the invention, and referring to fig. 6 and 7, it can be known from fig. 3 to 5 that: r1,1, G1,1 and B1,1 corresponding to the dotted frame shown in fig. 6 are one 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. Of course, only the red sub-pixel or the green sub-pixel may be set as the sub-pixel to be determined.

The virtual frame shown in fig. 7 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;

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; and 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. In this embodiment, referring to fig. 1, the color shift of the red sub-pixel and the green sub-pixel is obvious, and therefore, it is necessary to set the red sub-pixel and the green sub-pixel as the sub-pixels to be determined, and if the current picture is biased to the red hue or the green hue, it indicates that the current picture has a serious color shift, and the color shift should be improved first; if the current picture is not biased to the red hue or the green hue, the current picture is not severely biased, and at this time, the graininess can be improved firstly.

The color shift of the blue color system is not 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 first driving method is only selected to drive the blue sub-pixel 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;

comparing and judging a signal judgment interval in which the second color signal is positioned, and judging whether a preset condition corresponding to the signal judgment interval is met or not; the step S13 of determining to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined respectively in the first driving manner or the second driving manner according to the signal determination interval where the second color signal is located and the preset condition determination result includes:

comparing and judging the signal judgment interval where the second color signal corresponding to each block is located by taking each block as a unit, and meanwhile, judging whether a preset condition corresponding to the signal judgment interval is met; and determining that the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined are respectively driven in a first driving mode or a second driving mode according to the signal judgment interval where the second color signal is located and the preset condition judgment result. In this embodiment, the physical adjacency divides a plurality of adjacent pixels into a plurality of blocks, each block is independently calculated, and particularly, the display conditions of the red sub-pixel and the green sub-pixel are independently calculated, so that a judgment result more conforming to the actual display condition of the block can be obtained, and the adjustment mode is selected according to the correct judgment result, thereby achieving a better display effect.

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 an embodiment, the first driving method 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 driving 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 this embodiment, in the first driving mode, the gray scale difference between the sub-pixel high voltage signal and the sub-pixel low voltage signal corresponding to the first sub-pixel and the second sub-pixel is greater than the gray scale difference between the two original sub-pixel signals corresponding to the second sub-pixel in the same sub-pixel group to be determined; therefore, the first driving mode or the second driving mode can be selected to drive the sub-pixel to be determined according to the color cast severity of the picture so as to select to improve color cast or graininess.

Referring to the attached table 1, in the case of 8-bit (bit) display driving, the driving signals of the sub-pixels are 0,1, … 255, and in the first driving mode, taking the red sub-pixel as an example, the sub-pixel signals corresponding to two adjacent independent red sub-pixels are R1 and R2, the two sub-pixel signals are gray scale signals of 0,1, … 255, and the average signal Rave of the sub-pixel signals R1 and R2 corresponding to two adjacent red sub-pixels; in the second driving mode, the average signal Rave of two adjacent sub-pixels, the sub-pixel high voltage signal RH and the sub-pixel low voltage signal RL obtained by table lookup are also gray scale signals of 0,1, … 255. The average gray levels of the RH and RL are equivalent to the average gray levels of R1 and R2, namely, under two driving modes, the average value of the brightness is equivalent to the average value of the brightness, but the gray level difference or the voltage difference of the RH and RL is larger than R1 and R2. Therefore, after the color cast degree of the current frame picture is judged, whether the corresponding two adjacent red sub-pixels are driven by RH and RL with larger gray scale difference can be selected.

The sub-pixel signals of the first sub-pixel and the second sub-pixel which are not processed can be called as original sub-pixel signals, and the average gray scale of the two corresponding original sub-pixel signals is equivalent to the corresponding sub-pixel high-voltage signal and the sub-pixel low-voltage signal, but the gray scale difference of the two corresponding original sub-pixel signals is smaller and even can be set to be the same. The table look-up correspondence between the average value of the original sub-pixel signals of the first sub-pixel signal and the second sub-pixel signal and the sub-pixel high-voltage signal and the sub-pixel low-voltage signal is 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 above lookup table is only an exemplary lookup table to illustrate the present invention more clearly, but not to represent, the lookup table of the present invention is only the above lookup table; taking the ave equal to 50 as an example, in the first driving mode, the gray scales of the sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel can be 100 and 3, or 95 and 8; correspondingly, in the second driving mode, the gray scales of the sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel may be 40 and 60, or 50 and 50, depending on the actual requirement.

In addition, referring to attached tables 1 and 2, if 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, then only the red sub-pixel may be set as the sub-pixel to be determined, and of course, if the gray scale difference between the green sub-pixel and the other panel is larger, then the green sub-pixel may also be set as the sub-pixel to be determined. Or it is also possible to set both the red sub-pixel and the green sub-pixel as the sub-pixels to be determined.

Fig. 8 is a flowchart of a driving method according to another embodiment of the invention, and referring to fig. 8, it can be known from fig. 3 to fig. 7 that:

the driving method includes the steps of:

s21, the hue H satisfies the formula: h is more than 0 and less than or equal to 45, or H is more than 315 and less than or equal to 360, and the second color signal is divided into a first signal judgment interval; the hue H satisfies the formula: the second color signal with H more than 45 and less than or equal to 135 is divided into a second signal judgment interval: the hue H satisfies the formula: dividing the second color signal with H more than 135 and less than or equal to 205 into a third signal judgment interval; the hue H satisfies the formula: the second color signal with H more than 205 and less than or equal to 245 is divided into a fourth signal judgment interval: the hue H satisfies the formula: dividing the second color signal with H more than 245 and less than or equal to 295 into a fifth signal judgment interval; the hue H satisfies the formula: dividing the second color signal with H more than 295 and less than or equal to 315 into a sixth signal judgment interval; setting preset conditions corresponding to a first signal judgment interval, a second signal judgment interval, a third signal judgment interval, a fourth signal judgment interval, a fifth signal judgment interval and a sixth signal judgment interval; setting chroma preset conditions for a first signal judgment interval, a second signal judgment interval, a third signal judgment interval, a fourth signal judgment interval, a fifth signal judgment interval and a sixth signal judgment interval respectively;

s22, using the block as a unit, receiving red sub-pixel signals, green sub-pixel signals and blue sub-pixel signals corresponding to the red sub-pixel, the green sub-pixel and the blue sub-pixel under the RGB system; calculating a red average value of all red sub-pixel signals, calculating a green average value of all green sub-pixel signals, and calculating a blue average value of all blue sub-pixel signals; converting according to the red average value, the green average value and the blue average value to obtain a second color signal under an LCH system;

s23, comparing the signal judgment interval of the second color signal by taking the block as a unit, and judging whether the preset condition corresponding to the signal judgment interval is met;

s241, if the signal judgment interval where the second color signal is located is the first signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixel into a plurality of periods by taking 2 red sub-pixels as a period, determining 2 red sub-pixels as first driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit, and simultaneously determining all green sub-pixels as second driving mode sub-pixels;

s242, if the signal judgment interval in which the second color signal is located is the second signal judgment interval and meets the corresponding preset condition, dividing the red sub-pixel into a plurality of periods by taking 4 red sub-pixels as a period, determining 2 red sub-pixels as first driving mode sub-pixels per period by taking the sub-pixel group to be judged as a unit, and simultaneously dividing the green sub-pixel into a plurality of periods by taking 4 green sub-pixels as a period, and determining 2 green sub-pixels as first driving mode sub-pixels per period by taking the sub-pixel group to be judged as a unit;

s243, if the signal judgment interval where the second color signal is located is a third signal judgment interval and meets the corresponding preset condition, determining that all red sub-pixels are sub-pixels in a second driving mode, meanwhile, dividing the green sub-pixels into a plurality of periods by taking 2 green sub-pixels as a period, and determining 2 green sub-pixels as sub-pixels in a first driving mode in each period by taking a sub-pixel group to be judged as a unit;

s244, if the signal judgment interval where the second color signal is located is the fourth signal judgment interval and meets the corresponding preset conditions, determining all the red sub-pixels as the second driving mode sub-pixels, meanwhile, dividing the green sub-pixels into a plurality of periods by taking 4 green sub-pixels as a period, and determining 2 green sub-pixels as the first driving mode sub-pixels in each period by taking the sub-pixel group to be judged as a unit;

s245, if the signal judgment interval where the second color signal is located is a fifth signal judgment interval and meets corresponding preset conditions, dividing the red sub-pixel into a plurality of periods by taking 8 red sub-pixels as a period, determining 2 red sub-pixels as first driving mode sub-pixels per period by taking the sub-pixel group to be judged as a unit, and simultaneously dividing the green sub-pixel into a plurality of periods by taking 8 green sub-pixels as a period, and determining 2 green sub-pixels as first driving mode sub-pixels per period by taking the sub-pixel group to be judged as a unit;

s246, if the signal judgment interval in which the second color signal is positioned is a sixth signal judgment interval and meets corresponding preset conditions, dividing the red sub-pixel into a plurality of periods by taking 4 red sub-pixels as a period, determining 2 red sub-pixels as second driving method sub-pixels in each period by taking the sub-pixel group to be judged as a unit, and simultaneously determining all green sub-pixels as second driving method sub-pixels;

s25, determining all the blue sub-pixels as first driving mode sub-pixels;

s26, driving all the first driving mode sub-pixels in the first driving mode, and simultaneously driving all the second driving mode sub-pixels in the second driving mode;

In this embodiment, the blue sub-pixel is determined as the first driving mode sub-pixel by default, which can improve the problem of color cast; in addition, on the premise of no conflict, the steps can be executed synchronously or sequentially.

The selection mode of the 2 sub-pixels to be determined is based on the sub-pixel group to be determined, and the sub-pixels to be determined with weaker granular sensation can be preferentially selected, or certainly, the sub-pixels to be determined can be randomly selected.

Fig. 9 is a schematic diagram of a driving system of a display panel according to the present invention, and referring to fig. 9, it can be known from fig. 3 to fig. 8 that:

the invention also provides a driving system of the display panel, 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 10 includes:

the presetting module 100 is that a presetting circuit divides a plurality of signal judging sections according to the second color signals corresponding to the pixels in advance and preset conditions corresponding to the signal judging sections;

the conversion module 200, that is, the conversion circuit receives the first color signals corresponding to all the pixels, and converts the first color signals to obtain a second color signal;

the processing module 300, namely the processing circuit compares and judges the signal judgment section where the second color signal is located, and at the same time, judges whether a preset condition corresponding to the signal judgment section is met; and dividing the sub-pixel to be determined into a plurality of periods by taking 2n adjacent sub-pixels to be determined of the same color as a period according to the signal determination interval where the second color signal is located and the preset condition determination result, and respectively determining the first driving mode sub-pixel and the second driving mode sub-pixel in each period by taking the sub-pixel group to be determined as a unit.

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 alternative embodiments, and the practice of the invention should not be construed as limited to those descriptions. 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

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:

under the first driving mode and the second driving mode, the average gray scales of sub-pixel signals corresponding to the first sub-pixel and the second sub-pixel are equivalent, and the gray scale difference is different; n is a natural number more than or equal to 1, and the value of 2n is less than or equal to the total number of the sub-pixels to be judged;

the hue range of the second color signal is: 0-360 degrees, corresponding to 0-360 degrees;

dividing the second color signal with hue H satisfying the following formula into a sixth signal judgment section: h is more than 295 and less than or equal to 315;

2. The method according to claim 1, wherein the preset condition is divided according to the chroma of the second color signal; when the chroma C of the second color signal satisfies the following formula: and when the C is more than or equal to 40 and less than or equal to 80, judging that the preset condition corresponding to the signal judgment interval is met.

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 first color signal is a pixel signal under a red-green-blue system, and the second color signal is a pixel signal under a lightness chroma hue system;

4. 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.

5. The method according to claim 1, wherein the display panel divides the pixels into a plurality of blocks according to physical positions;

6. The method according to claim 1, wherein the first driving method is that after averaging 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, 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 to drive the first sub-pixel and the second sub-pixel corresponding to the sub-pixel to be determined;

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 driving method includes the steps of:

determining all the blue sub-pixels as first driving mode sub-pixels;

8. A driving system of a display panel, wherein the display panel comprises a plurality of pixels, each of the pixels comprising a plurality of differently colored 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 preset module is used for dividing the second color signal corresponding to the pixel into a plurality of signal judgment intervals and preset conditions corresponding to the signal judgment intervals in advance;

the conversion module receives the first color signals corresponding to all the pixels and converts the first color signals to obtain a second color signal;

the processing module compares and judges a signal judgment interval where the second color signal is located, and simultaneously judges whether preset conditions corresponding to the signal judgment interval are met or not; dividing the sub-pixels to be judged into a plurality of periods by taking 2n adjacent sub-pixels to be judged with the same color as a period according to a signal judgment interval where the second color signal is located and a preset condition judgment result, and respectively determining a first driving mode sub-pixel and a second driving mode sub-pixel in each period by taking the sub-pixel group to be judged as a unit;

n is a natural number more than or equal to 1, and the value of 2n is less than or equal to the total number of the sub-pixels to be judged;

wherein the hue range of the second color signal is: 0-360 degrees, corresponding to 0-360 degrees;