Display device and driving method thereof

Abstract

The invention provides a display device and a driving method thereof, a first sub-pixel group to an n-th sub-pixel group in the display device are sequentially turned on in one frame, and in a display state, n is greater than or equal to 1, and n is greater than or equal to 1. The first sub-pixel group and the nth sub-pixel group comprise a plurality of first-class sub-pixel groups displayed in a relatively large first gray scale interval and a plurality of second-class sub-pixel groups displayed in a relatively small second gray scale interval, and at least adjacent first-class sub-pixel groups and second-class sub-pixel groups exist; the first gray scale interval comprises the maximum gray scale value, and at least two gray scale values corresponding to at least two first-class sub-pixel groups are different, and / or the second gray scale interval comprises the minimum gray scale value, and at least two gray scale values corresponding to at least two second-class sub-pixel groups are different, so that the power consumption of the display device can be reduced while the influence on the image quality is avoided.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and particularly relates to a display device and a driving method thereof. Background Art

[0002] While improving the display effect, the demand for energy conservation of display devices is gradually increasing.

[0003] However, when a display device displays a heavy-load picture, due to a large jump in the data voltage input by the same data line, the source driver chip needs to quickly achieve a large cross-voltage conversion, resulting in a large power consumption of both the source driver chip and the display device including it. Summary of the Invention

[0004] The purpose of the present invention is to provide a display device and a driving method thereof to solve the technical problem of large power consumption of existing display devices when displaying heavy-load pictures.

[0005] The present invention provides a display device, including:

[0006] a first sub-pixel group to an nth sub-pixel group, each of which includes a plurality of sub-pixels, and the first sub-pixel group to the nth sub-pixel group sequentially display pictures within one frame;

[0007] In a display state, the first sub-pixel group to the nth sub-pixel group include a plurality of first-type sub-pixel groups displayed with gray-scale values in a first gray-scale interval and a plurality of second-type sub-pixel groups displayed with gray-scale values in a second gray-scale interval, at least one of the first-type sub-pixel groups and one of the second-type sub-pixel groups are arranged continuously, and the gray-scale values in the first gray-scale interval are all greater than the gray-scale values in the second gray-scale interval;

[0008] Wherein, the first gray-scale interval includes the maximum gray-scale value of the sub-pixels, and at least two gray-scale values corresponding to at least two of the first-type sub-pixel groups are different;

[0009] And / or, the second gray-scale interval includes the minimum gray-scale value of the sub-pixels, and at least two gray-scale values corresponding to at least two of the second-type sub-pixel groups are different.

[0010] In some embodiments, the gray-scale values corresponding to a plurality of consecutive first-type sub-pixel groups in the first sub-pixel group to the nth sub-pixel group alternately change in a manner of increasing in sequence and decreasing in sequence;

[0011] And / or, the gray-scale values corresponding to a plurality of consecutive second-type sub-pixel groups in the first sub-pixel group to the nth sub-pixel group alternately change in a manner of increasing in sequence and decreasing in sequence.

[0012] In some embodiments, the number of times that the gray-scale values corresponding to a plurality of consecutive first-type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group increase in sequence is equal to the number of times of corresponding decrease in sequence;

[0013] And / or, the number of times that the gray-scale values corresponding to a plurality of consecutive second-type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group increase in sequence is equal to the number of times of corresponding decrease in sequence.

[0014] In some embodiments, the number of times that the gray-scale values corresponding to a plurality of consecutive first-type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group increase in sequence and the number of times of corresponding decrease in sequence are both 1;

[0015] And / or, the number of times that the gray-scale values corresponding to a plurality of consecutive second-type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group increase in sequence and the number of times of corresponding decrease in sequence are both 1.

[0016] In some embodiments, the gray-scale values corresponding to a plurality of consecutive sub-pixel groups among the first sub-pixel group to the nth sub-pixel group alternately change in an increasing and then decreasing manner;

[0017] And / or, the gray-scale values corresponding to a plurality of consecutive second-type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group alternately change in an increasing and then decreasing manner.

[0018] In some embodiments, the absolute value of the difference between the two gray-scale values corresponding to two consecutive first-type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group is equal;

[0019] And / or, the absolute value of the difference between the two gray-scale values corresponding to two consecutive second-type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group is equal.

[0020] In some embodiments, the gray-scale values corresponding to a plurality of consecutive second-type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group are all 0.

[0021] In some embodiments, the first sub-pixel group to the nth sub-pixel group alternately are the first-type sub-pixel group and the second-type sub-pixel group.

[0022] In some embodiments, among the first sub-pixel group to the nth sub-pixel group, some of the first-type sub-pixel groups are arranged continuously, and at least one second-type sub-pixel group is arranged between two of the first-type sub-pixel groups in the other part of the first-type sub-pixel groups;

[0023] Wherein, the absolute value of the difference between the two gray scale values corresponding to the two first type sub-pixel groups separated by the second type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group is a first value, and the absolute value of the difference between the two gray scale values corresponding to two consecutive first type sub-pixel groups among the first sub-pixel group to the nth sub-pixel group is a second value;

[0024] Wherein, the first value is greater than the second value.

[0025] The present invention also provides a driving method for a display device, including:

[0026] Driving the first sub-pixel group to the nth sub-pixel group to sequentially display images within one frame. Each of the first sub-pixel group to the nth sub-pixel group includes a plurality of sub-pixels. In the display state, the first sub-pixel group to the nth sub-pixel group include a plurality of first type sub-pixel groups displaying with gray scale values within a first gray scale interval, and a plurality of second type sub-pixel groups displaying with gray scale values within a second gray scale interval. At least one first type sub-pixel group and one second type sub-pixel group are arranged continuously. The gray scale values within the first gray scale interval are all greater than the gray scale values within the second gray scale interval. The first gray scale interval includes the maximum gray scale value of the sub-pixels, and at least two gray scale values corresponding to at least two first type sub-pixel groups are different; and / or, the second gray scale interval includes the minimum gray scale value of the sub-pixels, and at least two gray scale values corresponding to at least two second type sub-pixel groups are different.

[0027] The present invention provides a display device and its driving method. The first sub-pixel group to the nth sub-pixel group in the display device are sequentially turned on within one frame. In the display state, the first sub-pixel group to the nth sub-pixel group include a plurality of first type sub-pixel groups displayed in a first gray scale interval and a plurality of second type sub-pixel groups displayed in a second gray scale interval. The first sub-pixel group to the nth sub-pixel group include adjacent first type sub-pixel groups and second type sub-pixel groups. The first gray scale interval is greater than the second gray scale interval. The first gray scale interval includes the maximum gray scale value and at least two gray scale values corresponding to at least two first type sub-pixel groups are different, and / or, the second gray scale interval includes the minimum gray scale value and at least two gray scale values corresponding to at least two second type sub-pixel groups are different, which can reduce the power consumption of the display device while avoiding affecting the image quality. Description of the Drawings

[0028] Figure 1 It is a schematic diagram of the architecture of the display device provided by the embodiment of the present invention.

[0029] Figures 2 to 4 It is a schematic diagram of the arrangement of the first type sub-pixel groups and the second type sub-pixel groups provided by the embodiment of the present invention.

[0030] Figures 5 to 7Schematic diagram of the gray-scale values of multiple first-type sub-pixel groups and the gray-scale values of multiple second-type sub-pixel groups provided by the embodiments of the present invention. Detailed implementation manners

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0032] In the description of the present invention, terms such as "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include one or more of the described features. Additionally, it should be noted that the accompanying drawings only provide structures that are relatively closely related to the present invention, and some details that are not closely related to the invention are omitted. The purpose is to simplify the drawings and make the inventive points clear at a glance, rather than indicating that the actual device is exactly the same as the attached Figure 1 model, and it is not a limitation of the actual device.

[0033] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present invention. The phrase appearing at various times in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0034] The present invention provides a display device, and the display device includes but is not limited to the following embodiments and combinations between the following embodiments.

[0035] In some embodiments, such as Figure 1As shown, the display device 100 includes: a first sub-pixel group Pg1 to an nth sub-pixel group Pgn, each of which includes a plurality of sub-pixels P. The first sub-pixel group Pg1 to the nth sub-pixel group Pgn sequentially display a picture within one frame (that is, the corresponding n rows of transistors are sequentially turned on within one frame). In the display state, the first sub-pixel group Pg1 to the nth sub-pixel group Pgn include a plurality of first-type sub-pixel groups 101 that display with gray-scale values within a first gray-scale interval and a plurality of second-type sub-pixel groups 102 that display with gray-scale values within a second gray-scale interval. Among the first sub-pixel group Pg1 to the nth sub-pixel group Pgn, there are adjacent first-type sub-pixel groups 101 and second-type sub-pixel groups 102 (that is, there is at least one first-type sub-pixel group 101 and one second-type sub-pixel group 102 arranged continuously). The gray-scale values within the first gray-scale interval are all greater than the gray-scale values within the second gray-scale interval. Wherein, the first gray-scale interval includes the maximum gray-scale value of the sub-pixel P, and at least two gray-scale values corresponding to at least two first-type sub-pixel groups 101 are different; and / or, the second gray-scale interval includes the minimum gray-scale value of the sub-pixel P, and at least two gray-scale values corresponding to at least two second-type sub-pixel groups 102 are different.

[0036] Wherein, the display device 100 can be, but is not limited to, an organic self-luminous display device, an inorganic self-luminous direct display device, or a liquid crystal display device. The display device 100 may include a display panel 10, a source driver 201, a timing controller 202, and a gate driver 30. The display panel 10 may include a substrate and a plurality of sub-pixels P located on the substrate. The gate driver 30 in the display device 100 may be a gate driving circuit located on the above-mentioned substrate or a chip independent of the above-mentioned substrate ( Figure 1 only the former is taken as an example for illustration). The timing controller 202 and the source driver 201 may be integrated in the same driving chip 20 or may be independently provided ( Figure 1 only the former is taken as an example for illustration). Each gate driving unit 301 in the gate driver 30 may be electrically connected between the timing controller 202 and the corresponding plurality of sub-pixels P for outputting a gate signal Gate transmitted to the corresponding plurality of sub-pixels P. Each source driver 201 is electrically connected between the timing controller 202 and the corresponding plurality of sub-pixels P for outputting a data signal Data transmitted to the corresponding plurality of sub-pixels P.

[0037] For the convenience of description, Figure 1Only the arrangement of a plurality of sub-pixels P in an array is taken as an example for illustration. For example, it can be arranged in n rows and m columns (both n and m are positive integers). It is defined that a plurality of sub-pixels P in the same row form a sub-pixel group (one of the first sub-pixel group Pg1 to the nth sub-pixel group Pgn). The substrate can also be provided with n gate lines (GL1 to GLn) respectively electrically connected to the n-level gate driving unit 301 and m data lines (DL1 to DLm) electrically connected to the source driver 201.

[0038] Among them, each gate signal Gate includes a gate pulse for controlling the corresponding pixel group to turn on. The n gate pulses respectively corresponding to the n gate signals Gate are arranged in sequence on the time axis, so that the corresponding first sub-pixel group Pg1 to the nth sub-pixel group Pgn are turned on in sequence; each data line is electrically connected to a corresponding column of sub-pixels P to input a data signal data generated by the source driver 201 thereto. Each data signal data includes n data voltages corresponding to the n sub-pixels P in this column, and the m data signals data corresponding to the m columns of sub-pixels P are matched so that when the sub-pixels P in each row are turned on, the m data lines (DL1 to DLm) also transmit the multiple data voltages corresponding to the sub-pixels P in this row, so that the multiple sub-pixels P in this row emit light. By analogy, the n rows of sub-pixels P can be controlled to emit light in sequence to present a complete frame of picture.

[0039] It should be noted that if the jump between two adjacent ones among the multiple data voltages corresponding to at least multiple sub-pixels P in the same column is relatively large, the charging efficiency of the sub-pixels P in the row behind in two adjacent rows is relatively low, and it is difficult to charge to their corresponding data voltages, which is particularly serious in a heavy-load picture.

[0040] Among them, in this embodiment, the first sub-pixel group 101 or the second sub-pixel group 102 is divided according to whether the gray scale value displayed by the first sub-pixel group Pg1 to the nth sub-pixel group Pgn in the display state belongs to the first gray scale interval or the second gray scale interval. Essentially, the gray scale value is related to the picture information corresponding to the display panel 10 in this display state, and the picture information can include multiple gray scale values corresponding to multiple sub-pixels P. Among them, the "gray scale value" of each of the first sub-pixel group Pg1 to the nth sub-pixel group Pgn can represent the average or mode of the multiple gray scale values corresponding to the multiple sub-pixels P in this one.

[0041] Among them, in this embodiment, the arrangement mode (determined according to the picture information) of the first type of sub-pixel group 101 or the second type of sub-pixel group 102 in the display state is not limited. For example Figure 2 as shown, the first type of sub-pixel group 101 and the second type of sub-pixel group 102 can be arranged alternately. Another example is Figure 3As shown, the same number (greater than 1) of first-type sub-pixel groups 101 can be set between every two adjacent second-type sub-pixel groups 102. Another example is Figure 4 As shown, different numbers of first-type sub-pixel groups 101 can be set between different adjacent second-type sub-pixel groups 102. Of course, the "first-type sub-pixel groups 101" and "second-type sub-pixel groups 102" in the description of the above arrangement can also be understood by substitution.

[0042] Among them, the first gray-scale interval is the interval extending from the maximum value of the gray-scale value to the minimum value, and is set close to the maximum value of the gray-scale value, and / or the second gray-scale interval is the interval extending from the minimum value of the gray-scale value to the maximum value, and is set close to the minimum value of the gray-scale value.

[0043] Combined with the above discussion, it can be seen that since there are significant differences between the first gray-scale interval and the second gray-scale interval, for adjacent (in rows) first-type sub-pixel groups 101 and second-type sub-pixel groups 102, the two data voltages in the data signal Data transmitted by the data line corresponding to them also have significant differences. Therefore, the jump value from the previous data voltage (for example, corresponding to the first gray-scale interval) to the next data voltage (for example, corresponding to the second gray-scale interval) may cause the risk of insufficient charging of the sub-pixel group corresponding to the next data voltage (for example, the second-type sub-pixel group 102). At this time, the source driver 201 needs to provide a large driving force to improve the above risk, resulting in a relatively high power consumption of the source driver 201.

[0044] It can be understood that in this embodiment, considering a normally black liquid crystal display device, an organic self-luminous display device, or an inorganic self-luminous direct display device, when the first gray-scale interval is set close to the maximum value of the gray-scale value, if the gray-scale values of all the first-type sub-pixel groups 101 are the maximum value of the gray-scale value, it will cause a relatively high power consumption of the display device 100. Therefore, at least two gray-scale values corresponding to at least two first-type sub-pixel groups 101 are set to be different, so that the gray-scale value of one of them can be closer to the maximum value of the gray-scale value, and the gray-scale value of the other can be farther from the maximum value of the gray-scale value. Thus, the average value of the multiple gray-scale values corresponding to the multiple first-type sub-pixel groups 101 is reduced, and while avoiding the gray-scale values of the multiple first-type sub-pixel groups 101 being too low and affecting the picture quality, the power consumption of the display device 100 can also be reduced.

[0045] Further, multiple consecutive second - type sub - pixel groups 102 among the first sub - pixel group Pg1 to the nth sub - pixel group Pgn all have gray - scale values of 0; further, the display device 100 is a self - emissive display device. As discussed above, for a self - emissive display device, the higher the gray - scale value of the sub - pixel P, the higher the power consumption of the display device 100. Therefore, on the basis that the gray - scale values of multiple second - type sub - pixel groups 102 are all 0, setting at least two gray - scale values corresponding to at least two of the first - type sub - pixel groups 101 with relatively higher gray - scale values to be different can reduce the power consumption of the display device 100 to a greater extent.

[0046] Similarly, for a normally - on liquid - crystal display device, when setting in the second gray - scale interval close to the minimum value of the gray - scale value, if the gray - scale values of all second - type sub - pixel groups 102 are the minimum value of the gray - scale value, it will cause a relatively high power consumption of the display device 100. Therefore, setting at least two gray - scale values corresponding to at least two second - type sub - pixel groups 102 to be different, such that the gray - scale value of one of them can be closer to the minimum value of the gray - scale value and the gray - scale value of the other can be farther from the minimum value of the gray - scale value, thus reducing the average value of the gray - scale values corresponding to multiple second - type sub - pixel groups 102, can reduce the power consumption of the display device 100 while avoiding the gray - scale values of multiple second - type sub - pixel groups 102 being too high and affecting the picture quality.

[0047] In some embodiments, as shown in Figure 1 、 Figure 5 and Figure 6 the gray - scale values (referred to as the first gray - scale value gr1) corresponding to multiple consecutive first - type sub - pixel groups 101 among the first sub - pixel group Pg1 to the nth sub - pixel group Pgn change alternately in the order of increasing and then decreasing; and / or, the gray - scale values (referred to as the second gray - scale value gr2) corresponding to multiple consecutive second - type sub - pixel groups 102 among the first sub - pixel group Pg1 to the nth sub - pixel group Pgn change alternately in the order of increasing and then decreasing.

[0048] It should be noted that regardless of the arrangement of the first type of sub-pixel groups 101 and the second type of sub-pixel groups 102, the above-mentioned "successive multiple first type of sub-pixel groups 101" can be understood as multiple first type of sub-pixel groups 101 arranged in sequence from the first sub-pixel group Pg1 to the nth sub-pixel group Pgn, and the "successive multiple second type of sub-pixel groups 102" can be understood as multiple second type of sub-pixel groups 102 arranged in sequence from the first sub-pixel group Pg1 to the nth sub-pixel group Pgn. Combining the above discussion, at least one second type of sub-pixel group 102 can be provided between two adjacent ones of the "successive multiple first type of sub-pixel groups 101", and at least one first type of sub-pixel group 101 can be provided between two adjacent ones of the "successive multiple second type of sub-pixel groups 102".

[0049] For the convenience of distinguishing each first gray level value gr1 and each second gray level value gr2, Figure 5 and Figure 6 only taking the example of the alternating arrangement of the first type of sub-pixel groups 101 and the second type of sub-pixel groups 102 from the first sub-pixel group Pg1 to the nth sub-pixel group Pgn for illustration, that is Figure 2 the shown arrangement. Combining the above discussion, when the first sub-pixel group to the nth sub-pixel group alternate between the first type of sub-pixel groups 101 and the second type of sub-pixel groups 102, there is a large difference between every two adjacent data voltages in the data signal Data transmitted by the data line. Therefore, there is a risk of insufficient charging starting from the second row of sub-pixels P. At this time, the source driver 201 needs to provide a greater driving force to improve the above risk, which belongs to a more serious heavy-load picture, resulting in a greater power consumption of the source driver 201. Therefore, the effect of reducing the power consumption of the display device 100 by adopting the above embodiment of the present invention is more obvious.

[0050] For example, Figure 5 as shown, the multiple second gray level values gr2 corresponding to the multiple second type of sub-pixel groups 102 can be equal, both being the minimum value of the gray level (i.e., 0) or another value less than the minimum value of the gray level. The multiple first gray level values gr1 corresponding to the multiple first type of sub-pixel groups 101 can alternately change in the way of increasing by x (x is a positive integer, such as 3) times and decreasing by y (y is a positive integer, such as 3) times in sequence. Among them, x and y can be equal or unequal, the values of different increases of the first gray level value gr1 can be equal or unequal, the values of different decreases of the first gray level value gr1 can be equal or unequal, and the value of a single increase and the value of a single decrease of the first gray level value gr1 can be equal or unequal. Of course, the "first gray level value gr1" and the "second gray level value gr2" in the description here can also be understood by substitution.

[0051] For example, Figure 6As shown, the multiple first gray-scale values gr1 corresponding to consecutive multiple first-type sub-pixel groups 101 alternately change in a manner of increasing by x1 (x1 is a positive integer, for example, 3) times in sequence and then decreasing by y1 (y1 is a positive integer, for example, 3) times in sequence. Also, the multiple second gray-scale values gr2 corresponding to consecutive multiple second-type sub-pixel groups 102 alternately change in a manner of increasing by x2 (x2 is a positive integer, for example, 3) times in sequence and then decreasing by y2 (y2 is a positive integer, for example, 3) times in sequence. Herein, x1, y1, x2, and y3 can be equal or unequal. The values of different increases of the first gray-scale value gr1 can be equal or unequal, the values of different decreases of the first gray-scale value gr1 can be equal or unequal, and the value of a single increase and the value of a single decrease of the first gray-scale value gr1 can be equal or unequal.

[0052] Further, in combination with Figure 1 、 Figure 5 and Figure 6 As shown, the number of times the gray-scale values corresponding to consecutive multiple first-type sub-pixel groups 101 in the 1st sub-pixel group Pg1 to the nth sub-pixel group Pgn increase in sequence is equal to the number of times they decrease in sequence, for example, both are 3 times; and / or, the number of times the gray-scale values corresponding to consecutive multiple second-type sub-pixel groups 102 in the 1st sub-pixel group Pg1 to the nth sub-pixel group Pgn increase in sequence is equal to the number of times they decrease in sequence, for example, both are 3 times.

[0053] Herein, by setting the number of consecutive increases of the first gray-scale value gr1 and the subsequent corresponding number of consecutive decreases to be equal, the multiple brightness values corresponding to consecutive multiple first-type sub-pixel groups 101 can rise in a stepped form and fall in a stepped form, thereby realizing the alternation of gradually increasing brightness and gradually decreasing brightness. Furthermore, the value of a single increase and the value of a single decrease of the first gray-scale value gr1 can be equal. The second gray-scale value gr2 can be set in the same way.

[0054] It can be understood that in the display state, since the brightness of multiple first-type sub-pixel groups 101 alternates between gradually increasing brightness and gradually decreasing brightness, and / or the brightness of multiple second-type sub-pixel groups 102 alternates between gradually increasing brightness and gradually decreasing brightness, the brightness of the higher-brightness regions in the display screen can alternately change between a higher brightness and a lower brightness, and the brightness of the lower-brightness regions in the display screen can also alternately change between a higher brightness and a lower brightness, improving the uniformity of the display screen.

[0055] In some embodiments, in combination with Figure 1 、 Figure 7As shown, the number of times the gray-scale values corresponding to multiple consecutive first-type sub-pixel groups 101 among the first sub-pixel group Pg1 to the nth sub-pixel group Pgn increase in sequence and the number of times they decrease in sequence are both 1; and / or, the number of times the gray-scale values corresponding to multiple consecutive second-type sub-pixel groups 102 among the first sub-pixel group Pg1 to the nth sub-pixel group Pgn increase in sequence and the number of times they decrease in sequence are both 1.

[0056] For the convenience of distinguishing each first gray-scale value gr1 and each second gray-scale value gr2, Figure 7 only taking the example of the alternating arrangement of the first-type sub-pixel groups 101 and the second-type sub-pixel groups 102 in the first sub-pixel group Pg1 to the nth sub-pixel group Pgn for illustration, that is Figure 2 the arrangement shown.

[0057] As Figure 7 shown, the difference from Figure 5 is that the multiple first gray-scale values gr1 corresponding to multiple first-type sub-pixel groups 101 alternately change in the way of increasing by 1 time in sequence and decreasing by 1 time in sequence. The values of different increases of the first gray-scale value gr1 can be equal or unequal, the values of different decreases of the first gray-scale value gr1 can be equal or unequal, and the value of a single increase and the value of a single decrease of the first gray-scale value gr1 can be equal or unequal. Of course, the "first gray-scale value gr1" and "second gray-scale value gr2" in this description can also be understood by substitution.

[0058] It can be understood that in this embodiment, since the cycle of consecutive increases and consecutive decreases of multiple first gray-scale values gr1 and / or multiple second gray-scale values gr2 is extremely shortened, the multiple brightness values corresponding to multiple consecutive first-type sub-pixel groups 101 and / or multiple second-type sub-pixel groups 102 can alternately present two brightness levels, so that the brightness of the higher-brightness area and / or the lower-brightness area in the display screen alternately presents their corresponding two brightness levels, making the overall brightness situation of every two adjacent first-type sub-pixel groups 101 and / or every two adjacent second-type sub-pixel groups 102 the same macroscopically, and further improving the uniformity of the display screen.

[0059] In some embodiments, as shown in combination with Figure 1 and Figures 5 to 7 shown, the multiple gray-scale values corresponding to multiple consecutive first-type sub-pixel groups 101 among the first sub-pixel group Pg1 to the nth sub-pixel group Pgn alternately change in an increasing and decreasing manner; and / or, the multiple gray-scale values corresponding to multiple consecutive second-type sub-pixel groups 102 among the first sub-pixel group Pg1 to the nth sub-pixel group Pgn alternately change in an increasing and decreasing manner.

[0060] It can be understood that regardless of whether the multiple first gray scale values gr1 corresponding to multiple consecutive first type sub-pixel groups 101 increase alternately in sequence or decrease in sequence, no matter what the specific number of consecutive increase times and consecutive decrease times (when greater than 1) are, the value increased each time can be set to be equal, so that the brightness increase or decrease amplitude between adjacent two first type sub-pixel groups 101 is the same, thereby making the brightness of multiple regions with higher brightness in the display screen change uniformly, and further improving the uniformity of the display screen. The second gray scale value gr2 can be set in the same way.

[0061] Furthermore, as shown in combination with Figure 1 、 Figures 5 to 7 The absolute value of the difference between the two gray scale values corresponding to two consecutive first type sub-pixel groups 101 among the first sub-pixel group Pg1 to the nth sub-pixel group Pgn is equal; and / or, the absolute value of the difference between the two gray scale values corresponding to two consecutive second type sub-pixel groups 102 among the first sub-pixel group to the nth sub-pixel group is equal.

[0062] For example Figure 5 and Figure 6 each of the first three first gray scale values gr1 is smaller than the subsequent one by the same value, and for another example Figure 5 and Figure 6 the value by which the fourth first gray scale value gr1 in Figure 7 is larger than the previous one and smaller than the subsequent one is the same, and for yet another example

[0063] It can be understood that setting the difference between adjacent two of the increasing or decreasing multiple first gray scale values gr1 to be equal, and / or setting the difference between adjacent two of the increasing or decreasing multiple second gray scale values gr2 to be equal can achieve that the increase amplitude and decrease amplitude of the brightness of multiple regions with higher brightness and / or lower brightness in the display screen are the same, and further improve the uniformity of the brightness change of the regions with higher brightness and / or lower brightness in the display screen.

[0064] In some embodiments, as shown in combination with Figures 1 to 4As shown, among the first sub-pixel groups Pg1 to the nth sub-pixel groups Pgn, some of the first type of sub-pixel groups 101 are arranged continuously, and at least one of the second type of sub-pixel groups 102 is arranged between two of the first type of sub-pixel groups 101 in the other part of the first type of sub-pixel groups 101; wherein, the absolute value of the difference between the two gray-scale values corresponding to the two first type of sub-pixel groups 101 separated by the second type of sub-pixel group 102 among the first sub-pixel groups Pg1 to the nth sub-pixel groups Pgn is a first value, and the absolute value of the difference between the two gray-scale values corresponding to the two continuously arranged first type of sub-pixel groups 101 among the first sub-pixel groups Pg1 to the nth sub-pixel groups Pgn is a second value; wherein, the first value is greater than the second value.

[0065] Wherein, the first value represents the degree of difference between the two gray-scale values corresponding to the two first type of sub-pixel groups 101 arranged at intervals, and the second value represents the degree of difference between the two gray-scale values corresponding to the two adjacent first type of sub-pixel groups 101.

[0066] It can be understood that since the distance between two adjacent first type of sub-pixel groups 101 is relatively close, the degree of difference between their gray-scale values (positively correlated with the second value) is set to be small, which can reduce the brightness difference between the two in the display state and reduce the risk of being recognized due to a large brightness jump between the two; and since the distance between the two first type of sub-pixel groups 101 arranged at intervals is relatively far, the degree of difference between their gray-scale values (positively correlated with the first value) is set to be large. Even though the brightness difference between the two in the display state is large, there are several second type of sub-pixel groups 102 between the two, so the risk of the brightness difference being recognized is also low.

[0067] Furthermore, in multiple rows of continuously arranged sub-pixels P, the degree of difference between the gray-scale values of two continuously (adjacent or at intervals) arranged first type of sub-pixel groups 101 can be set to be positively correlated with the distance between them.

[0068] The present invention also provides a driving method for a display device, including but not limited to the following steps.

[0069] Drive the first sub-pixel group to the nth sub-pixel group to sequentially display images within one frame. Each of the first sub-pixel group to the nth sub-pixel group includes a plurality of sub-pixels. In the display state, the first sub-pixel group to the nth sub-pixel group include a plurality of first-type sub-pixel groups displayed with gray-scale values located within a first gray-scale interval and a plurality of second-type sub-pixel groups displayed with gray-scale values located within a second gray-scale interval. At least one first-type sub-pixel group and one second-type sub-pixel group are arranged continuously. The gray-scale values within the first gray-scale interval are all greater than the gray-scale values within the second gray-scale interval. The first gray-scale interval includes the maximum gray-scale value of the sub-pixels. At least two gray-scale values corresponding to at least two first-type sub-pixel groups are different; and / or, the second gray-scale interval includes the minimum gray-scale value of the sub-pixels. At least two gray-scale values corresponding to at least two second-type sub-pixel groups are different.

[0070] Among them, the definitions of "the first sub-pixel group Pg1" to "the nth sub-pixel group Pgn" can refer to the relevant descriptions above.

[0071] Combined with the above discussion, it can be known that the n gate signals Gate generated by the gate driver 30 can control the first sub-pixel group Pg1 to the nth sub-pixel group Pgn to conduct sequentially, and display images in combination with the m data signals Data generated by the source driver 201.

[0072] Among them, the definitions of "the first gray-scale interval", "the second gray-scale interval", "the first-type sub-pixel group", and "the second-type sub-pixel group" can refer to the relevant descriptions above.

[0073] Combined with the above discussion, it can be known that based on the fact that the first gray-scale interval (including the maximum gray-scale value) is greater than the second gray-scale interval (including the minimum gray-scale value), the closer the gray-scale value of the first-type sub-pixel group 101 is to the maximum gray-scale value, or the closer the gray-scale value of the second-type sub-pixel group 102 is to the minimum gray-scale value, both may cause higher power consumption of the display device 100. Therefore, at least two gray-scale values corresponding to at least two first-type sub-pixel groups 101 or at least two second-type sub-pixel groups 102 are set to be different, thereby reducing the average value of the multiple gray-scale values corresponding to the multiple first-type sub-pixel groups 101, or increasing the average value of the multiple gray-scale values corresponding to the multiple second-type sub-pixel groups 102, which can reduce the power consumption of the display device 100 while avoiding the gray-scale values of multiple first-type sub-pixel groups 101 being too low or the gray-scale values of multiple second-type sub-pixel groups 102 being too high and affecting the image quality.

[0074] The above has introduced in detail the display device and its driving method provided by the embodiments of the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present invention; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display device, characterized in that, Including: The 1st sub-pixel group to the nth sub-pixel group, each of which includes a plurality of sub-pixels, and the 1st sub-pixel group to the nth sub-pixel group sequentially display images within one frame; In the display state, the 1st sub-pixel group to the nth sub-pixel group include a plurality of first-type sub-pixel groups displayed with gray-scale values located within a first gray-scale interval and a plurality of second-type sub-pixel groups displayed with gray-scale values located within a second gray-scale interval, at least one of the first-type sub-pixel groups and one of the second-type sub-pixel groups are arranged continuously, and the gray-scale values within the first gray-scale interval are all greater than the gray-scale values within the second gray-scale interval; Wherein, the first gray-scale interval includes the maximum gray-scale value of the sub-pixels, and at least two gray-scale values corresponding to at least two of the first-type sub-pixel groups are different; And / or, the second gray-scale interval includes the minimum gray-scale value of the sub-pixels, and at least two gray-scale values corresponding to at least two of the second-type sub-pixel groups are different.

2. The display device according to claim 1, wherein For the plurality of consecutive first-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group, the corresponding plurality of gray-scale values alternately change in the manner of increasing sequentially and decreasing sequentially; And / or, for the plurality of consecutive second-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group, the corresponding plurality of gray-scale values alternately change in the manner of increasing sequentially and decreasing sequentially.

3. The display device according to claim 2, wherein For the plurality of consecutive first-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group, the number of times the corresponding plurality of gray-scale values increase sequentially is equal to the number of times they decrease sequentially; And / or, for the plurality of consecutive second-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group, the number of times the corresponding plurality of gray-scale values increase sequentially is equal to the number of times they decrease sequentially.

4. The display device according to claim 3, wherein, For the plurality of consecutive first-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group, the number of times the corresponding plurality of gray-scale values increase sequentially and the number of times they decrease sequentially are both 1; And / or, for the plurality of consecutive second-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group, the number of times the corresponding plurality of gray-scale values increase sequentially and the number of times they decrease sequentially are both 1.

5. The display device according to claim 2, characterized in that, For the plurality of consecutive gray-scale values among the 1st sub-pixel group to the nth sub-pixel group, they alternately change in the manner of increasing and decreasing; And / or, for the plurality of consecutive second-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group, the corresponding plurality of gray-scale values alternately change in the manner of increasing and decreasing.

6. The display device according to claim 5, wherein The absolute value of the difference between the two gray-scale values corresponding to two consecutive first-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group is equal; And / or, the absolute value of the difference between the two gray-scale values corresponding to two consecutive second-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group is equal.

7. The display device according to any one of claims 2 to 6, characterized in that, For the plurality of consecutive second-type sub-pixel groups among the 1st sub-pixel group to the nth sub-pixel group, the corresponding plurality of gray-scale values are all 0.

8. The display device according to claim 7, characterized in that, The 1st sub-pixel group to the nth sub-pixel group alternate between the first-type sub-pixel groups and the second-type sub-pixel groups.

9. The display device according to claim 7, wherein Among the first sub-pixel group to the nth sub-pixel group, some of the first type of sub-pixel groups are arranged continuously, and at least one of the second type of sub-pixel groups is arranged between two of the first type of sub-pixel groups in the other part of the first type of sub-pixel groups; Wherein, the absolute value of the difference between the two gray scale values corresponding to the two first type of sub-pixel groups separated by the second type of sub-pixel group among the first sub-pixel group to the nth sub-pixel group is a first value, and the absolute value of the difference between the two gray scale values corresponding to the two consecutive first type of sub-pixel groups among the first sub-pixel group to the nth sub-pixel group is a second value; Wherein, the first value is greater than the second value.

10. A driving method of a display device, characterized in that Comprising: Driving the first sub-pixel group to the nth sub-pixel group to sequentially display images within one frame. Each of the first sub-pixel group to the nth sub-pixel group includes a plurality of sub-pixels. In the display state, the first sub-pixel group to the nth sub-pixel group includes a plurality of first type of sub-pixel groups displayed with gray scale values located within a first gray scale interval and a plurality of second type of sub-pixel groups displayed with gray scale values located within a second gray scale interval. At least one of the first type of sub-pixel groups and one of the second type of sub-pixel groups are arranged continuously. The gray scale values within the first gray scale interval are all greater than the gray scale values within the second gray scale interval. The first gray scale interval includes the maximum gray scale value of the sub-pixels, and at least two of the first type of sub-pixel groups correspond to at least two different gray scale values; and / or, the second gray scale interval includes the minimum gray scale value of the sub-pixels, and at least two of the second type of sub-pixel groups correspond to at least two different gray scale values.

Images