CN111653237B - Display control method, display control device and electronic equipment - Google Patents

Display control method, display control device and electronic equipment Download PDF

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CN111653237B
CN111653237B CN202010571864.4A CN202010571864A CN111653237B CN 111653237 B CN111653237 B CN 111653237B CN 202010571864 A CN202010571864 A CN 202010571864A CN 111653237 B CN111653237 B CN 111653237B
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sub
pixel
target
pixels
brightness value
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CN111653237A (en
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姚纯亮
周小康
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Yungu Guan Technology Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours

Abstract

The invention discloses a display control method, a display control device and electronic equipment. The method comprises the steps of calculating a first target brightness value and a third target brightness value respectively corresponding to a first sub-pixel and a third sub-pixel under a preset gray scale according to a target color coordinate and a target brightness value of a display panel during white balance under the preset gray scale; determining a target voltage value corresponding to the third sub-pixel according to the third target brightness value; and determining the lighting number S of the first sub-pixels under the preset gray scale according to the corresponding first actual brightness value of the first sub-pixels under the target voltage value. According to the embodiment of the invention, the problem of gray scale crosstalk of the display panel can be improved.

Description

Display control method, display control device and electronic equipment
Technical Field
The invention relates to the technical field of display, in particular to a display control method, a display control device and electronic equipment.
Background
The organic electroluminescent display is an active light emitting display device, and is one of the most concerned technologies in the current display technology because of its advantages of simple manufacturing process, low cost, high contrast, wide viewing angle, low power consumption, and the like.
In the display panel, because the lighting voltages of the red sub-pixel, the green sub-pixel and the blue sub-pixel are different, when the sub-pixel with high lighting voltage is lighted, current flows transversely through the current carrier layer, so that the sub-pixel with low lighting voltage is lightly lighted, gray scale crosstalk occurs in a display picture, and abnormal display occurs.
Disclosure of Invention
The embodiment of the invention provides a display control method, a display control device and electronic equipment, which can solve the problem of gray scale crosstalk of a display panel.
In a first aspect, an embodiment of the present invention provides a display control method for a display panel, where the display panel includes a plurality of pixel units, each pixel unit includes at least a first sub-pixel, a second sub-pixel, and a third sub-pixel, the first sub-pixel includes M first sub-pixels, where M is a positive integer greater than 1, and a lighting voltage of the third sub-pixel is greater than lighting voltages of the first sub-pixel and the second sub-pixel;
the method comprises the following steps:
calculating a first target brightness value and a third target brightness value respectively corresponding to the first sub-pixel and the third sub-pixel under a preset gray scale according to a target color coordinate and a target brightness value of the display panel during white balance under the preset gray scale;
determining a target voltage value corresponding to the third sub-pixel according to the third target brightness value;
determining the lighting number S of the first sub-pixels under a preset gray scale according to a first actual brightness value corresponding to the first sub-pixels under a target voltage value;
wherein, the sum of the first actual brightness values of the S first sub-pixels is equal to the first target brightness value, and S is a positive integer greater than or equal to 1 and less than or equal to M.
In a possible implementation manner of the first aspect, the second sub-pixel includes N second sub-pixels, where N is a positive integer greater than 1, and the method further includes:
determining the lighting number T of the second sub-pixels under the preset gray scale according to the corresponding second actual brightness value of the second sub-pixels under the target voltage value;
the sum of the second actual brightness values of the T second sub-pixels is equal to a second target brightness value, the second target brightness value is a target brightness value corresponding to the second sub-pixel when the display panel is in white balance under a preset gray scale, and T is a positive integer greater than or equal to 1 and less than or equal to N;
in one possible embodiment of the first aspect, the aperture ratios of the first sub-pixels are the same, and the aperture ratios of the second sub-pixels are the same.
In a possible implementation manner of the first aspect, the lighting number S of the first sub-pixel and the lighting number T of the second sub-pixel at the preset gray level are calculated according to the following relations:
Figure BDA0002549913940000021
Figure BDA0002549913940000022
wherein L is11Representing a first target brightness value, L21Representing a second target brightness value, L12Representing a first actual luminance value, L22Is shown asTwo actual brightness values.
In a possible implementation manner of the first aspect, the method further includes:
acquiring a first corresponding relation between the brightness value and the voltage value of the first sub-pixel;
determining a first brightness value corresponding to the target voltage value in the first corresponding relation, and taking the first brightness value as a first actual brightness value;
acquiring a second corresponding relation between the brightness value and the voltage value of the second sub-pixel;
and determining a second brightness value corresponding to the target voltage value in the second corresponding relation, and taking the second brightness value as a second actual brightness value.
In a possible implementation manner of the first aspect, determining a target voltage value corresponding to the third subpixel according to the third target brightness value includes:
acquiring a third corresponding relation between the brightness value and the voltage value of the third sub-pixel;
and determining a voltage value corresponding to the third target brightness value in the third corresponding relation, and taking the determined voltage value as a target voltage value corresponding to the third sub-pixel.
In a second aspect, an embodiment of the present invention provides a display control method for a display panel, where the display panel includes a plurality of pixel units, each pixel unit includes at least a first sub-pixel, a second sub-pixel, and a third sub-pixel, the first sub-pixel includes M first sub-pixels, where M is a positive integer greater than 1, and a lighting voltage of the third sub-pixel is greater than lighting voltages of the first sub-pixel and the second sub-pixel;
the method comprises the following steps:
acquiring the lighting number S of first sub-pixels of the display panel under a preset gray scale and a target voltage value corresponding to a third sub-pixel;
providing target voltage values to the S first sub-pixels and the third sub-pixels;
the sum of the first actual brightness values of the S first sub-pixels is equal to a first target brightness value, the first target brightness value is a target brightness value corresponding to the first sub-pixel when the display panel is in white balance under a preset gray scale, and S is a positive integer greater than or equal to 1 and less than or equal to M.
In one possible implementation manner of the second aspect, the second sub-pixel includes N second sub-pixels, where N is a positive integer greater than 1, and the method further includes:
acquiring the lighting number T of second sub-pixels of the display panel under a preset gray scale, and providing target voltage values for the T second sub-pixels;
the sum of the second actual brightness values of the T second sub-pixels is equal to a second target brightness value, the second target brightness value is a target brightness value corresponding to the second sub-pixel when the display panel is in white balance under a preset gray scale, and T is a positive integer greater than or equal to 1 and less than or equal to N.
In a possible embodiment of the second aspect, each first sub-pixel corresponds to one pixel circuit, or each first sub-pixel corresponds to the same pixel circuit;
or each second sub-pixel corresponds to one pixel circuit, or each second sub-pixel corresponds to the same pixel circuit;
preferably, the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel.
In a third aspect, an embodiment of the present invention provides a display control apparatus for a display panel, where the display panel includes a plurality of pixel units, each pixel unit includes at least a first sub-pixel, a second sub-pixel, and a third sub-pixel, the first sub-pixel includes M first sub-pixels, where M is a positive integer greater than 1, and a lighting voltage of the third sub-pixel is greater than lighting voltages of the first sub-pixel and the second sub-pixel;
the device includes:
the target brightness value determining module is used for calculating a first target brightness value and a third target brightness value respectively corresponding to the first sub-pixel and the third sub-pixel under the preset gray scale according to the target color coordinate and the target brightness value of the display panel during the white balance under the preset gray scale;
the target voltage value determining module is used for determining a target voltage value corresponding to the third sub-pixel according to the third target brightness value;
the first quantity determining module is used for determining the lighting number S of the first sub-pixels under the preset gray scale according to a first actual brightness value corresponding to the first sub-pixels under the target voltage value;
wherein, the sum of the first actual brightness values of the S first sub-pixels is equal to the first target brightness value, and S is a positive integer greater than or equal to 1 and less than or equal to M.
In a fourth aspect, an embodiment of the present invention further provides a display control apparatus for a display panel, where the display panel includes a plurality of pixel units, each pixel unit includes at least a first sub-pixel, a second sub-pixel, and a third sub-pixel, the first sub-pixel includes M first sub-pixels, where M is a positive integer greater than 1, and a lighting voltage of the third sub-pixel is greater than lighting voltages of the first sub-pixel and the second sub-pixel;
the device includes:
the data acquisition module is used for acquiring the lighting number S of the first sub-pixel and the target voltage value corresponding to the third sub-pixel of the display panel under the preset gray scale;
the voltage supply module is used for supplying a target voltage value to the S first sub-pixels and the third sub-pixels;
the sum of the first actual brightness values of the S first sub-pixels is equal to a first target brightness value, the first target brightness value is a target brightness value corresponding to the first sub-pixel when the display panel is in white balance under a preset gray scale, and S is a positive integer greater than or equal to 1 and less than or equal to M.
In a fifth aspect, an embodiment of the present invention provides an electronic device, which includes the display control apparatus according to any one of the embodiments of the fourth aspect.
According to the display control method, the display control device and the electronic apparatus provided by the embodiment of the invention, the sum of the first actual brightness values of the S first sub-pixels is equal to the first target brightness value, and the first target brightness value is the brightness value corresponding to the first sub-pixel when the display panel is in white balance under the preset gray scale, so that the same target voltage value corresponding to the third sub-pixel can be provided for the first sub-pixel and the third sub-pixel of the display panel under the condition of not damaging the white balance of the display panel, and the voltage difference between the different first sub-pixel and the third sub-pixel of the display panel is avoided, so that the gray scale crosstalk of the display picture of the display panel is avoided, and the display abnormality is avoided.
Drawings
Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
Fig. 1 shows a schematic diagram of a pixel structure of an exemplary display panel;
FIG. 2 illustrates a flow diagram of a display control method according to an embodiment of the invention;
FIG. 3 is a schematic diagram showing the relationship between the voltage and the brightness of a sub-pixel of an exemplary display panel;
FIG. 4 shows a flow diagram of a display control method according to another embodiment of the invention;
FIG. 5 shows a schematic diagram of a pixel circuit according to an embodiment of the invention;
fig. 6 is a schematic configuration diagram showing a display control apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram showing a display control apparatus according to another embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the OLED display panel, each color sub-pixel generally includes an organic light emitting layer made of an organic light emitting material disposed between an anode electrode and a cathode electrode. When current is applied to the anode electrode, holes injected from the anode electrode move to the organic light emitting layer through the hole injection layer, electrons injected from the cathode electrode move to the organic light emitting layer, and the holes and the electrons act to cause the organic light emitting layer to emit light for display. Due to the characteristics of the materials, the mobility of each film material to holes or electrons is different. Illustratively, the light emission is understood from the point of view of the OLED material: the organic material absorbs energy (a carrier is transited from a ground state to an excited state) first, the carrier in the excited state is unstable, and light is emitted when the carrier returns to the ground state, and the shorter the wavelength of the light, the higher the energy. Therefore, to de-excite the OLED material to emit light, the energy relationship required is: the blue sub-pixel > the green sub-pixel > the red sub-pixel, so the turn-on voltage of the blue sub-pixel is the highest. Therefore, there is a difference in the turn-on voltages of the red, green, and blue sub-pixels. When the sub-pixel with high lighting voltage is lighted, the current is conducted through the transverse direction of the hole injection layer, and the sub-pixel with low lighting voltage can be slightly lighted. This causes the display panel to have a certain degree of color distortion, which may be referred to as gray-scale crosstalk.
In view of the foregoing problems, embodiments of the present invention provide two display control methods, display control apparatuses corresponding to the two display methods, and an electronic device. Embodiments of a display control method, a display control apparatus, and an electronic device will be described below with reference to the drawings.
The display control method and the display control device provided by the embodiment of the invention can be used for a display panel. The display panel may be an Organic Light Emitting Diode (OLED) display panel. Each pixel unit of the display panel may include at least three color sub-pixels. As shown in fig. 1, each pixel unit 10 of the display panel includes three color sub-pixels, namely a first sub-pixel 11, a second sub-pixel 12 and a third sub-pixel 13. The first sub-pixel 11 may include M first sub-pixels 111.
For example, in an embodiment of the present invention, the first sub-pixel may be a red sub-pixel, the second sub-pixel may be a green sub-pixel, and the third sub-pixel may be a blue sub-pixel. In general, the luminance ratio of the green sub-pixel is relatively high in white balance, that is, the required luminance value of the green sub-pixel is relatively high, so that the voltage value corresponding to the green sub-pixel is relatively close to the voltage value corresponding to the blue sub-pixel, and therefore, the gray scale crosstalk between the green sub-pixel and the blue sub-pixel is less obvious. Therefore, the green sub-pixel may not be divided, that is, the green sub-pixel and the blue sub-pixel in the pixel unit 10 may be both a single sub-pixel. Of course, for better controlling the display effect, the green sub-pixels may also be divided, that is, the second sub-pixel 12 may include N second sub-pixels 121, where M and N are positive integers greater than 1, and the turn-on voltage of the third sub-pixel 13 is greater than the turn-on voltages of the first sub-pixel 11 and the second sub-pixel 12.
Of course, the first sub-pixel may also be a green sub-pixel, and the second sub-pixel is a red sub-pixel, that is, the red sub-pixel is a single sub-pixel, and the green sub-pixel includes a plurality of sub-pixels. The target voltage value corresponding to the red sub-pixel can be increased by reducing the area of the red sub-pixel in the pixel unit or weakening the brightness of the light which can be emitted by the red sub-pixel in other ways, so that the target voltage value of the red sub-pixel tends to be consistent with the target voltage value of the blue sub-pixel, and the situation that a large voltage difference value exists between the red sub-pixel and the blue sub-pixel is improved.
Illustratively, the first sub-pixel 111 and the second sub-pixel 121 are both micro sub-pixels. It should be understood that the first sub-pixel is a red sub-pixel, the first sub-pixel is also a red sub-pixel, the second sub-pixel is a green sub-pixel, and the second sub-pixel is also a green sub-pixel.
After the sizes of the first sub-pixel 11 and the second sub-pixel 12 are determined, the first sub-pixel 11 and the second sub-pixel 12 may be divided into a plurality of smaller first sub-pixels 111 and second sub-pixels 121. M, N are all 16 in FIG. 1, and M, N may be other values. It should be understood that the larger the value of M, N, the better the display control. However, M, N is too large, which increases the difficulty of the process. Illustratively, the value ranges of M, N can be 4 or more and 16 or less. However, the value of M, N may be set according to actual requirements, and the present invention is not limited in this regard.
For example, table 1 shows the turn-on voltages required by the red sub-pixel (R), the green sub-pixel (G), and the blue sub-pixel (B) at each gray level, and the voltage difference between the blue sub-pixel (B) and the red sub-pixel (R) and the green sub-pixel (G). As shown in table 1, the turn-on voltage required for the blue sub-pixel is greater than the turn-on voltages required for the red sub-pixel and the green sub-pixel at the same gray level. And in low gray scale, the difference of the lighting voltages of the blue sub-pixel, the red sub-pixel and the green sub-pixel is larger, namely the gray scale crosstalk phenomenon is more obvious in low gray scale.
TABLE 1
Figure BDA0002549913940000081
Example one
Fig. 2 is a flowchart illustrating a display control method according to an embodiment of the present invention. As shown in fig. 2, the method may include the steps of:
step 110, calculating a first target brightness value and a third target brightness value respectively corresponding to the first sub-pixel and the third sub-pixel under a preset gray scale according to a target color coordinate and a target brightness value of the display panel under the preset gray scale during white balance;
step 120, determining a target voltage value corresponding to the third sub-pixel according to the third target brightness value;
step 130, determining the lighting number S of the first sub-pixel under a preset gray scale according to a first actual brightness value corresponding to the first sub-pixel under the target voltage value;
wherein, the sum of the first actual brightness values of the S first sub-pixels is equal to the first target brightness value, and S is a positive integer number which is greater than or equal to 1 and less than or equal to M.
According to the display control method provided by the embodiment of the invention, the sum of the first actual brightness values of the S first sub-pixels is equal to the first target brightness value, and the first target brightness value is the brightness value corresponding to the first sub-pixel when the display panel is in white balance under the preset gray scale, so that the same target voltage value can be provided for the first sub-pixel and the third sub-pixel of the display panel under the condition of not destroying the white balance of the display panel, and the voltage difference between the first sub-pixel and the third sub-pixel of the display panel is avoided, so that the gray scale crosstalk of the display picture of the display panel is avoided, and the display abnormality is avoided.
It should be understood that, if the second sub-pixel is a single sub-pixel, in the actual display control process, in order to avoid breaking the white balance state, the voltage provided to the second sub-pixel is the target voltage value corresponding to itself. Illustratively, the method may further comprise: calculating a second target brightness value corresponding to the second sub-pixel under the preset gray scale according to the target color coordinate and the target brightness value of the display panel under the preset gray scale during white balance; and determining a target voltage value corresponding to the second sub-pixel according to the second target brightness value.
In addition, if the second sub-pixel includes N second sub-pixels, in the actual display control process, in order to avoid breaking the white balance state, the voltage provided to the second sub-pixel is the target voltage value corresponding to the third sub-pixel. Illustratively, the method may further comprise: determining the lighting number T of the second sub-pixels under the preset gray scale according to the corresponding second actual brightness value of the second sub-pixels under the target voltage value; wherein the sum of the second actual luminance values of the T second sub-pixels is equal to the second target luminance value, and T is a positive integer greater than or equal to 1 and less than or equal to N.
The second sub-pixels are also divided, so that the same target voltage value can be provided for the first sub-pixels, the second sub-pixels and the third sub-pixels, voltage difference among the sub-pixels of the display panel is avoided, and gray scale crosstalk is further avoided.
Illustratively, the execution subject of the display control method may be a computer. According to the embodiment of the present invention, after the lighting number S of the first sub-pixel and the lighting number T of the second sub-pixel at each gray scale are determined, the correspondence relationship can be stored in the display panel. For example, the display panel includes an Integrated Circuit (IC), and the corresponding relationship between the lighting number S of the first sub-pixels and the lighting number T of the second sub-pixels at each gray scale is stored in the IC of the display panel, so that when the display panel displays a display, the lighting of the first sub-pixels and the second sub-pixels of the corresponding numbers at each gray scale is directly controlled. Compared with the method of storing the whole control program in the display panel, the storage capacity can be reduced. The storage space is positively correlated with the cost, so the cost can be reduced according to the embodiment of the invention.
Because the turn-on voltage of the third sub-pixel is greater than the turn-on voltages of the first sub-pixel and the second sub-pixel, if the target voltage value corresponding to the first sub-pixel or the second sub-pixel meeting the brightness requirement is taken as a reference, the third sub-pixel cannot reach the third target brightness corresponding to the third sub-pixel under the voltage value, and thus the white balance state of the display panel is damaged. In the embodiment of the invention, the target voltage value corresponding to the third sub-pixel is taken as the reference, so that the gray scale crosstalk of the display panel can be avoided under the condition of not damaging the white balance of the display panel.
It should be understood that the embodiment of the present invention is merely exemplified by the maximum on-off voltage corresponding to the blue sub-pixel, and each sub-pixel in the pixel unit may be of other colors, as long as the target voltage corresponding to the sub-pixel with the maximum on-off voltage is taken as the reference, and the present invention does not limit the specific color of each sub-pixel.
White balance is an important index for describing the accuracy of white color generated by mixing three primary colors of red (R), green (G) and blue (B) in a display panel, and white balance imbalance can cause serious distortion of a display picture of the display panel. Therefore, the brightness ratios of the three primary colors of red (R), green (G) and blue (B) can be determined according to the white balance requirement under any gray scale, so as to avoid the distortion of the display picture of the display panel.
For example, the gray scale display range of the display panel may be 0 to 255 gray scales, and in step 110, the preset gray scale may be any gray scale. Take the first sub-pixel, the second sub-pixel and the third sub-pixel as the red sub-pixel, the green sub-pixel and the blue sub-pixel, respectively. The first target brightness value corresponding to the first sub-pixel, the second target brightness value corresponding to the second sub-pixel, and the third target brightness value corresponding to the third sub-pixel may be calculated according to the following relations (1) to (3), respectively:
LR+LG+LB＝LW (1)
Figure BDA0002549913940000101
Figure BDA0002549913940000102
wherein L isRIndicating a first target luminance value, L, corresponding to the first sub-pixelGIndicating a second target luminance value, L, corresponding to the second sub-pixelBIndicating a third target luminance value corresponding to the third sub-pixel, (X)R，yR) Color coordinate value (X) of the first sub-pixelG，yG) Color coordinate value (X) of the second sub-pixelB，yB) Color coordinate value (X) of the third sub-pixelW，yW) Representing the target color coordinate, LWAnd representing the target brightness value in white balance under the preset gray scale.
For example, the target color coordinate and the target brightness of the display panel at the white balance under the preset gray scale may be determined as required, and the color coordinate value of the first sub-pixel, the color coordinate value of the second sub-pixel, and the color coordinate value of the third sub-pixel are also known, so that the first target brightness value corresponding to the first sub-pixel may be calculated according to expression (4), the second target brightness value corresponding to the second sub-pixel may be calculated according to expression (5), and the third target brightness value corresponding to the third sub-pixel may be calculated according to expression (6):
Figure BDA0002549913940000103
Figure BDA0002549913940000111
Figure BDA0002549913940000112
in some alternative embodiments, the aperture ratio of each first sub-pixel is the same, and the aperture ratio of each second sub-pixel is the same. The aperture ratio is the ratio of the effective light-transmitting area of a sub-pixel to the total area of the sub-pixel. For example, the size of each first sub-pixel may be the same, and the size of each second sub-pixel may be the same. The aperture ratio of each first sub-pixel is the same, and the actual display brightness of each first sub-pixel is also the same under the same voltage value; the actual display brightness of each second sub-pixel is the same under the same voltage value. Therefore, in step 130, the lighting number S of the first sub-pixels can be determined according to the corresponding first actual brightness value of any one of the first sub-pixels at the target voltage value, without calculating the corresponding first actual brightness value of each first sub-pixel at the target voltage value; in step 140, the lighting number T of the second sub-pixels may be determined according to the second actual brightness value corresponding to any one of the second sub-pixels at the target voltage value, and it is not necessary to calculate the second actual brightness value corresponding to each of the second sub-pixels at the target voltage value, so that the calculation process can be simplified and the control is easy.
In addition, the aperture ratio of the first sub-pixel and the aperture ratio of the second sub-pixel can be the same, so that the first sub-pixel and the second sub-pixel can be formed by using the same mask to reduce the process complexity. The aperture ratio of the first sub-pixel may be different from the aperture ratio of the second sub-pixel, and the aperture ratio of the first sub-pixel and the aperture ratio of the second sub-pixel may be set according to actual conditions, which is not limited in the present invention.
In some alternative embodiments, the lighting number S of the first sub-pixel and the lighting number T of the second sub-pixel at the preset gray level may be calculated according to the following relations (7) and (8):
Figure BDA0002549913940000113
Figure BDA0002549913940000114
wherein L is11Representing a first target brightness value, L21Representing a second target brightness value, L12Representing a first actual luminance value, L22Representing a second actual luminance value.
As described above, the aperture ratios of the first sub-pixels are the same, and the aperture ratios of the second sub-pixels are the same, so that the first actual luminance values of the first sub-pixels are the same, and the second actual luminance values of the second sub-pixels are the same. According to the relational expression, the number S of the first sub-pixels and the number T of the second sub-pixels which need to be lightened can be accurately and conveniently calculated.
For example, if the value of S calculated according to the above relation (7) includes a decimal, S is rounded up by 1. For example, if S is calculated to be 10.16, S takes the value of 11. The number T is the same.
In some optional embodiments, before step 130, the method may further comprise: acquiring a first corresponding relation between the brightness value and the voltage value of the first sub-pixel; and determining a first brightness value corresponding to the target voltage value in the first corresponding relation, and taking the first brightness value as a first actual brightness value. Before determining the lighting number T of the second sub-pixel, the method may further include: acquiring a second corresponding relation between the brightness value and the voltage value of the second sub-pixel; and determining a second brightness value corresponding to the target voltage value in the second corresponding relation, and taking the second brightness value as a second actual brightness value.
Illustratively, the luminance value and the voltage value of each color of the sub-pixel have a corresponding relationship. As described above, taking the first sub-pixel as the red sub-pixel, the second sub-pixel as the green sub-pixel, and the third sub-pixel as the blue sub-pixel as an example, as shown in fig. 3, curve 1 is a relationship curve between the luminance value and the voltage value of the red sub-pixel, curve 2 is a relationship curve between the luminance value and the voltage value of the green sub-pixel, and curve 3 is a relationship curve between the luminance value and the voltage value of the blue sub-pixel. The brightness value corresponding to the target voltage value can be found in the curve 1, so as to obtain a first actual brightness value corresponding to the first sub-pixel. Similarly, the luminance value corresponding to the target voltage value can be found in the curve 2, so as to obtain a second actual luminance value corresponding to the second sub-pixel.
According to the embodiment of the invention, in the actual operation process, the actual display brightness of the first sub-pixel and the actual display brightness of the second sub-pixel can be directly calculated without providing the target voltage value for the first sub-pixel and the second sub-pixel, and the efficiency can be improved on the premise of ensuring the accuracy of the first actual brightness value and the second actual brightness value.
In some optional embodiments, step 120 may specifically include: acquiring a third corresponding relation between the brightness value and the voltage value of the third sub-pixel; and determining a voltage value corresponding to the third target brightness value in the third corresponding relation, and taking the determined voltage value as a target voltage value corresponding to the third sub-pixel. The voltage value corresponding to the third target brightness value can be found in the curve 3, so as to obtain the target voltage values corresponding to the three sub-pixels. Therefore, in the actual operation process, the target voltage value when the luminance of the third sub-pixel is the third target luminance value can be obtained without lighting the third sub-pixel and making the luminance of the third sub-pixel be the third target luminance value, but the target voltage value corresponding to the third sub-pixel is directly calculated, and the efficiency can be improved on the premise of ensuring the accuracy of the target voltage value.
Example two
Fig. 4 is a flowchart illustrating a display control method according to another embodiment of the present invention. As shown in fig. 4, the display control method provided in the embodiment of the present invention may include the following steps:
step 210, acquiring the lighting number S of first sub-pixels and a target voltage value corresponding to a third sub-pixel of the display panel under a preset gray scale;
step 220, providing target voltage values to the S first sub-pixels and the third sub-pixels;
the sum of the first actual brightness values of the S first sub-pixels is equal to a first target brightness value, the first target brightness value is a target brightness value corresponding to the first sub-pixel when the display panel is in white balance under a preset gray scale, and S is a positive integer greater than or equal to 1 and less than or equal to M.
According to the embodiment of the invention, the same target voltage value is provided for the first sub-pixel and the third sub-pixel of the display panel, and the voltage difference between the first sub-pixel and the third sub-pixel of the display panel is avoided, so that the gray scale crosstalk of the display picture of the display panel is avoided, and the abnormal display is avoided.
It should be understood that, if the second sub-pixel is a single sub-pixel, in the actual display control process, in order to avoid breaking the white balance state, the voltage provided to the second sub-pixel is the target voltage value corresponding to itself. Illustratively, the method may further comprise: acquiring a target voltage value corresponding to the second sub-pixel; the second sub-pixel is provided with its own corresponding target voltage value.
In addition, if the second sub-pixel includes N second sub-pixels, in the actual display control process, in order to avoid breaking the white balance state, the voltage provided to the second sub-pixel is the target voltage value corresponding to the third sub-pixel. Illustratively, the method may further comprise: acquiring the lighting number T of second sub-pixels of the display panel under a preset gray scale, and providing a target voltage value corresponding to a third sub-pixel for the T second sub-pixels; wherein the sum of the second actual luminance values of the T second sub-pixels is equal to the second target luminance value, and T is a positive integer greater than or equal to 1 and less than or equal to N.
Illustratively, the execution subject of the display control method may be a display panel. Specifically, it may be an IC of the display panel. According to the display control method of the first embodiment, the lighting number S of the first sub-pixel and the lighting number T of the second sub-pixel corresponding to each gray scale can be determined, and the corresponding relationship can be stored in the IC of the display panel. It should be understood that the IC of the display panel also stores the target voltage value corresponding to the third sub-pixel at the preset gray level. Therefore, in the display control method provided in the second embodiment, the lighting number S of the first sub-pixel, the lighting number T of the second sub-pixel, and the target voltage value corresponding to the third sub-pixel at the preset gray level may be directly obtained, and the target voltage values may be provided to the S first sub-pixels, the T second sub-pixels, and the third sub-pixels, so that the sum of the luminance values of the S first sub-pixels is equal to the first target luminance value, the sum of the luminance values of the T second sub-pixels is equal to the second target luminance value, the first target luminance value is the luminance value corresponding to the first sub-pixel when the display panel is in white balance at the preset gray level, and the second target luminance value is the luminance value corresponding to the second sub-pixel when the display panel is in white balance at the preset gray level, and therefore, the display panel can be driven to the first sub-pixel, the second sub-pixel, and the third sub-pixel without damaging the white balance of the display panel, The second sub-pixel and the third sub-pixel provide the same target voltage value, and voltage difference between different sub-pixels of the display panel is avoided, so that gray scale crosstalk of a display picture of the display panel is avoided, and abnormal display is avoided.
In some alternative embodiments, each of the first sub-pixels corresponds to one pixel circuit. Each second sub-pixel corresponds to one pixel circuit. For example, the pixel circuits corresponding to the first sub-pixels and the second sub-pixels may have the same structure. Each first sub-pixel and each second sub-pixel respectively correspond to one pixel circuit, and the light emitting state of each first sub-pixel and each second sub-pixel can be controlled simply and conveniently. Or, each first sub-pixel corresponds to the same first pixel circuit. Each second sub-pixel corresponds to the same second pixel circuit. For example, the number of the first sub-pixels and the number of the second sub-pixels are both 16, and 16 first sub-pixels correspond to one first pixel circuit.
For example, as shown in fig. 5, the first pixel circuit may include at least a driving block P1 and a data writing block P2. Taking the first pixel circuit as "2T 1C", the first pixel circuit includes 2 driving transistors T1 and a switching transistor T2, and 1 capacitor Cs. The connection relationship of the elements in the first pixel circuit is shown in fig. 5, and is not described in detail here. Wherein Scan represents a Scan signal terminal, Data represents a Data signal terminal, VDD represents a first voltage terminal, and VSS represents a second voltage terminal. Each of the first sub-pixels 111 is electrically connected to the driving block P1 through one switching element T3. If it is necessary to provide a target voltage value to a first sub-pixel, the switching element T3 corresponding to the first sub-pixel may be turned on. Illustratively, the first pixel circuit and the second pixel circuit have the same circuit structure. Similarly, the first sub-pixel in fig. 5 is replaced by the second sub-pixel, so that the connection relationship between the second sub-pixel and the second pixel circuit can be obtained.
Fig. 5 shows only one pixel circuit structure of the first pixel circuit, and a specific structure of the pixel circuit may be set according to actual requirements, which is not limited by the present invention.
Therefore, each first sub-pixel corresponds to the same first pixel circuit, and each second sub-pixel corresponds to the same second pixel circuit. The number of pixel circuits can be reduced, and the cost can be reduced.
In some alternative embodiments, the aperture ratio of each first sub-pixel is the same, and the aperture ratio of each second sub-pixel is the same.
In some alternative embodiments, the number S of the first sub-pixels and the number T of the second sub-pixels at the predetermined gray level may be calculated according to the above relations (7) and (8).
EXAMPLE III
Fig. 6 is a schematic structural diagram of a display control apparatus according to an embodiment of the present invention. The display control device provided by the embodiment of the invention is used for controlling a display panel, the display panel comprises a plurality of pixel units, each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel comprises M first sub-pixels, M is a positive integer larger than 1, and the lighting voltage of the third sub-pixel is larger than the lighting voltage of the first sub-pixel and the second sub-pixel.
As shown in fig. 6, the display control apparatus 600 includes:
a target brightness value determining module 601, configured to calculate, according to a target color coordinate and a target brightness value of the display panel during white balance under a preset gray scale, a first target brightness value and a third target brightness value respectively corresponding to the first sub-pixel and the third sub-pixel under the preset gray scale;
a target voltage value determining module 602, configured to determine a target voltage value corresponding to the third subpixel according to the third target brightness value;
a first quantity determining module 603, configured to determine, according to a first actual brightness value corresponding to the first sub-pixel at the target voltage value, a lighting number S of the first sub-pixel at a preset gray scale;
wherein, the sum of the first actual brightness values of the S first sub-pixels is equal to the first target brightness value, and S is a positive integer greater than or equal to 1 and less than or equal to M.
According to the display control method device provided by the embodiment of the invention, the sum of the first actual brightness values of the S first sub-pixels is equal to the first target brightness value, and the first target brightness value is the brightness value corresponding to the first sub-pixel when the display panel is in white balance under the preset gray scale, so that the same target voltage value can be provided for the first sub-pixel, the second sub-pixel and the third sub-pixel of the display panel under the condition of not destroying the white balance of the display panel, and the voltage difference among different sub-pixels of the display panel is avoided, so that the gray scale crosstalk of the display picture of the display panel is avoided, and the display abnormity is avoided.
In some optional embodiments, the second sub-pixel is a single sub-pixel, and the target luminance value determining module 601 is further configured to calculate a second target luminance value corresponding to the second sub-pixel at the preset gray scale according to the target color coordinate and the target luminance value of the display panel at the time of white balance at the preset gray scale. The target voltage value determining module 602 is further configured to determine a target voltage value corresponding to the second sub-pixel according to the second target brightness value.
In some optional embodiments, the second sub-pixel includes N second sub-pixels, and the apparatus may further include: a second quantity determining module 604, configured to determine, according to a second actual luminance value corresponding to the second sub-pixel at the target voltage value, a lighting number T of the second sub-pixel at the preset gray scale; wherein the sum of the second actual luminance values of the T second sub-pixels is equal to the second target luminance value, and T is a positive integer greater than or equal to 1 and less than or equal to N.
Illustratively, the display control device may be a computer. According to the embodiment of the present invention, after the lighting number S of the first sub-pixel and the lighting number T of the second sub-pixel at each gray scale are determined, the correspondence relationship can be stored in the display panel. For example, the display panel includes an IC, and the display panel may store a correspondence relationship between the lighting number S of the first sub-pixels and the lighting number T of the second sub-pixels at each gray scale in the IC of the display panel, so that when the display panel displays a display, the lighting of the first sub-pixels and the second sub-pixels of the corresponding numbers at each gray scale is directly controlled. Compared with the method of storing the whole control program in the display panel, the storage capacity can be reduced. The storage space is positively correlated with the cost, so the cost can be reduced according to the embodiment of the invention.
In some alternative embodiments, the aperture ratio of each first sub-pixel is the same, and the aperture ratio of each second sub-pixel is the same.
In some alternative embodiments, the lighting number S of the first sub-pixel and the lighting number T of the second sub-pixel at the predetermined gray scale may be calculated according to the above relation (7) and relation (8).
In some optional embodiments, the apparatus may further comprise:
the actual brightness value determining module is used for acquiring a first corresponding relation between the brightness value and the voltage value of the first sub-pixel; and determining a first brightness value corresponding to the target voltage value in the first corresponding relation, and taking the first brightness value as a first actual brightness value. Acquiring a second corresponding relation between the brightness value and the voltage value of the second sub-pixel; and determining a second brightness value corresponding to the target voltage value in the second corresponding relation, and taking the second brightness value as a second actual brightness value.
In some optional embodiments, the target voltage value determining module 602 is specifically configured to:
acquiring a third corresponding relation between the brightness value and the voltage value of the third sub-pixel; and determining a voltage value corresponding to the third target brightness value in the third corresponding relation, and taking the determined voltage value as a target voltage value corresponding to the third sub-pixel.
Example four
Fig. 7 is a schematic structural diagram showing a display control apparatus according to another embodiment of the present invention. The display control device provided by the embodiment of the invention is used for controlling a display panel, the display panel comprises a plurality of pixel units, each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel comprises M first sub-pixels, M is a positive integer larger than 1, and the lighting voltage of the third sub-pixel is larger than the lighting voltage of the first sub-pixel and the second sub-pixel.
As shown in fig. 7, the display control apparatus 700 includes:
the data acquisition module 701 is used for acquiring the lighting number S of the first sub-pixel and the target voltage value corresponding to the third sub-pixel of the display panel under the preset gray scale;
a voltage providing module 702, configured to provide a target voltage value to the S first sub-pixels and the third sub-pixels;
the sum of the first actual brightness values of the S first sub-pixels is equal to a first target brightness value, the first target brightness value is a target brightness value corresponding to the first sub-pixel when the display panel is in white balance at a preset gray scale, the second target brightness value is a target brightness value corresponding to the second sub-pixel when the display panel is in white balance at the preset gray scale, and S is a positive integer greater than or equal to 1 and less than or equal to M.
In some optional embodiments, the second sub-pixel is a single sub-pixel, and the data obtaining module 701 is further configured to obtain a target voltage value corresponding to the second sub-pixel. The voltage providing module 702 is further configured to provide the second sub-pixel with its own corresponding target voltage value.
In some optional embodiments, the second sub-pixels include N second sub-pixels, and the data obtaining module 701 is further configured to obtain a lighting number T of the second sub-pixels of the display panel at a preset gray level. The voltage providing module 702 is further specifically configured to provide the target voltage value corresponding to the third sub-pixel to the T second sub-pixels. Wherein the sum of the second actual luminance values of the T second sub-pixels is equal to the second target luminance value, and T is a positive integer greater than or equal to 1 and less than or equal to N.
Illustratively, the display control device may be a display panel. Specifically, it may be an IC of the display panel. According to the display control device of the third embodiment, the lighting number S of the first sub-pixel and the lighting number T of the second sub-pixel corresponding to each gray scale can be determined, and the correspondence relationship can be stored in the IC of the display panel. It should be understood that the IC of the display panel also stores the target voltage value corresponding to the third sub-pixel at the preset gray level. Therefore, in the display control device according to the fourth embodiment, the lighting number S of the first sub-pixel, the lighting number T of the second sub-pixel, and the target voltage value corresponding to the third sub-pixel at the preset gray level can be directly obtained, and the target voltage values are provided to the S first sub-pixels, the T second sub-pixels, and the third sub-pixels, so that the sum of the first actual luminance values of the S first sub-pixels is equal to the first target luminance value, the sum of the second actual luminance values of the T second sub-pixels is equal to the second target luminance value, the first target luminance value is the luminance value corresponding to the first sub-pixel when the display panel is in white balance at the preset gray level, and the second target luminance value is the luminance value corresponding to the second sub-pixel when the display panel is in white balance at the preset gray level, thereby the display control device can provide the first sub-pixel, the second sub-pixel, and the third sub-pixel of the display panel without damaging the white balance of the display panel The second sub-pixel and the third sub-pixel provide the same target voltage value, and voltage difference between different sub-pixels of the display panel is avoided, so that gray scale crosstalk of a display picture of the display panel is avoided, and abnormal display is avoided.
In some alternative embodiments, each of the first sub-pixels corresponds to one pixel circuit. Each second sub-pixel corresponds to one pixel circuit. Or, each first sub-pixel corresponds to the same first pixel circuit. Each second sub-pixel corresponds to the same second pixel circuit.
In some alternative embodiments, the aperture ratio of each first sub-pixel is the same, and the aperture ratio of each second sub-pixel is the same.
In some alternative embodiments, the number S of the first sub-pixels and the number T of the second sub-pixels at the predetermined gray level may be calculated according to the above relations (7) and (8).
In some embodiments, the display control apparatus provided by the embodiments of the present invention may be integrated in an IC of the display panel.
EXAMPLE five
The embodiment of the invention also provides the electronic equipment. The electronic device includes a display panel and the display control device according to the fourth embodiment, wherein the display control device performs display control on the display panel when the display panel performs a display operation. By way of example, the electronic device provided by the present application may be any product or component with a display function, such as a mobile phone, a tablet computer, a notebook computer, a digital photo frame, and a navigator.
An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium has computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement any of the display control methods in the above embodiments. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc. According to embodiments of the present application, the computer-readable storage medium may be a non-transitory computer-readable storage medium.
In accordance with the above-described embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.

Claims (12)

1. The display control method is used for a display panel, the display panel comprises a plurality of pixel units, each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel comprises M first sub-pixels, M is a positive integer larger than 1, and the lighting voltage of the third sub-pixel is larger than the lighting voltage of the first sub-pixel and the second sub-pixel;
the method comprises the following steps:
calculating a first target brightness value and a third target brightness value respectively corresponding to the first sub-pixel and the third sub-pixel under a preset gray scale according to a target color coordinate and a target brightness value of the display panel under the preset gray scale during white balance;
determining a target voltage value corresponding to the third sub-pixel according to the third target brightness value;
determining the lighting number S of the first sub-pixel under the preset gray scale according to a first actual brightness value corresponding to the first sub-pixel under the target voltage value;
the sum of the first actual brightness values of S first sub-pixels is equal to the first target brightness value, and S is a positive integer which is greater than or equal to 1 and less than or equal to M;
calculating the lighting number S of the first sub-pixel under the preset gray scale according to the following relational expression:
Figure FDA0003152906000000011
wherein L is11Representing the first target luminance value, L12Representing the first actual luminance value.
2. The method of claim 1, wherein the second sub-pixel comprises N second sub-pixels, N being a positive integer greater than 1, the method further comprising:
determining the lighting number T of the second sub-pixels under the preset gray scale according to a second actual brightness value corresponding to the second sub-pixels under the target voltage value;
the sum of second actual brightness values of the T second sub-pixels is equal to a second target brightness value, where the second target brightness value is a target brightness value corresponding to the second sub-pixel when the display panel is in white balance under the preset gray scale, and T is a positive integer greater than or equal to 1 and less than or equal to N;
calculating the lighting number T of the second sub-pixels under the preset gray scale according to the following relational expression:
Figure FDA0003152906000000021
wherein L is21Representing the second target luminance value, L22Representing the second actual luminance value.
3. The method according to claim 2, wherein the aperture ratio of each of the first sub-pixels is the same, and the aperture ratio of each of the second sub-pixels is the same.
4. The method of claim 2, further comprising:
acquiring a first corresponding relation between the brightness value and the voltage value of the first sub-pixel;
determining a first brightness value corresponding to the target voltage value in the first corresponding relation, and taking the first brightness value as the first actual brightness value;
acquiring a second corresponding relation between the brightness value and the voltage value of the second sub-pixel;
and determining a second brightness value corresponding to the target voltage value in the second corresponding relation, and taking the second brightness value as the second actual brightness value.
5. The method of claim 2, wherein determining the target voltage value corresponding to the third sub-pixel according to the third target brightness value comprises:
acquiring a third corresponding relation between the brightness value and the voltage value of the third sub-pixel;
and determining a voltage value corresponding to the third target brightness value in the third corresponding relation, and taking the determined voltage value as a target voltage value corresponding to the third sub-pixel.
6. The display control method is used for a display panel, the display panel comprises a plurality of pixel units, each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel comprises M first sub-pixels, M is a positive integer larger than 1, and the lighting voltage of the third sub-pixel is larger than the lighting voltage of the first sub-pixel and the second sub-pixel;
the method comprises the following steps:
acquiring the lighting number S of the first sub-pixel and a target voltage value corresponding to the third sub-pixel of the display panel under a preset gray scale;
providing the target voltage value to S of the first and third sub-pixels;
the sum of first actual brightness values of the S first sub-pixels is equal to a first target brightness value, the first target brightness value is a target brightness value corresponding to the first sub-pixel when the display panel is in white balance under the preset gray scale, and S is a positive integer greater than or equal to 1 and less than or equal to M;
the lighting number S of the first sub-pixel under the preset gray scale is calculated according to the following relational expression:
Figure FDA0003152906000000031
wherein L is11Representing the first target luminance value, L12Representing the first actual luminance value.
7. The method of claim 6, wherein the second sub-pixel comprises N second sub-pixels, N being a positive integer greater than 1, the method further comprising:
acquiring the lighting number T of the second sub-pixels of the display panel under a preset gray scale, and providing the target voltage value for the T second sub-pixels;
the sum of second actual brightness values of the T second sub-pixels is equal to a second target brightness value, where the second target brightness value is a target brightness value corresponding to the second sub-pixel when the display panel is in white balance under the preset gray scale, and T is a positive integer greater than or equal to 1 and less than or equal to N;
the lighting number T of the second sub-pixel under the preset gray scale is calculated according to the following relational expression:
Figure FDA0003152906000000032
wherein L is21Representing the second target luminance value, L22Representing the second actual luminance value.
8. The method according to claim 7, wherein each of the first sub-pixels corresponds to one pixel circuit, or each of the first sub-pixels corresponds to the same pixel circuit;
or each second sub-pixel corresponds to one pixel circuit, or each second sub-pixel corresponds to the same pixel circuit.
9. The method of claim 6, wherein the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel.
10. The display control device is used for a display panel, the display panel comprises a plurality of pixel units, each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel comprises M first sub-pixels, M is a positive integer larger than 1, and the lighting voltage of the third sub-pixel is larger than the lighting voltage of the first sub-pixel and the second sub-pixel;
the device comprises:
the target brightness value determining module is used for calculating a first target brightness value and a third target brightness value respectively corresponding to the first sub-pixel and the third sub-pixel under a preset gray scale according to a target color coordinate and a target brightness value of the display panel during white balance under the preset gray scale;
a target voltage value determining module, configured to determine a target voltage value corresponding to the third subpixel according to the third target brightness value;
the first quantity determining module is used for determining the lighting number S of the first sub-pixels under the preset gray scale according to a first actual brightness value corresponding to the first sub-pixels under the target voltage value;
the sum of the first actual brightness values of S first sub-pixels is equal to the first target brightness value, and S is a positive integer which is greater than or equal to 1 and less than or equal to M;
the lighting number S of the first sub-pixel under the preset gray scale is calculated according to the following relational expression:
Figure FDA0003152906000000041
wherein L is11Representing the first target luminance value, L12Representing the first actual luminance value.
11. The display control device is used for a display panel, the display panel comprises a plurality of pixel units, each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel comprises M first sub-pixels, M is a positive integer larger than 1, and the lighting voltage of the third sub-pixel is larger than the lighting voltage of the first sub-pixel and the second sub-pixel;
the device comprises:
the data acquisition module is used for acquiring the lighting number S of the first sub-pixel and the target voltage value corresponding to the third sub-pixel of the display panel under a preset gray scale;
a voltage providing module, configured to provide the target voltage value to the S first sub-pixels and the third sub-pixels;
the sum of first actual brightness values of the S first sub-pixels is equal to a first target brightness value, the first target brightness value is a target brightness value corresponding to the first sub-pixel when the display panel is in white balance under the preset gray scale, and S is a positive integer greater than or equal to 1 and less than or equal to M;
the lighting number S of the first sub-pixel under the preset gray scale is calculated according to the following relational expression:
Figure FDA0003152906000000051
wherein L is11Representing the first target luminance value, L12Representing the first actual luminance value.
12. An electronic device characterized by comprising the display control apparatus according to claim 11.
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