CN112908251B - Display method, device, equipment and machine-readable storage medium - Google Patents
Display method, device, equipment and machine-readable storage medium Download PDFInfo
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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]
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- G—PHYSICS
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- 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
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Abstract
The embodiment of the application provides a display method, a display device, equipment and a machine-readable storage medium, wherein the method comprises the following steps: before displaying image data, acquiring a first target brightness parameter of display equipment and a first voltage value of a target color sub-pixel; determining a first voltage adjustment parameter according to the first target brightness parameter and the corresponding relation between the predetermined target brightness parameter and the voltage adjustment parameter; the voltage adjusting parameter is used for adjusting the first voltage value to a target voltage value, and the target voltage value is the voltage value of the gray scale voltage signal obtained by white balance adjustment; adjusting the voltage of the gray scale voltage signal to a target voltage value based on the first voltage adjustment parameter to obtain an adjusted gray scale voltage signal; and driving the light-emitting elements in the target color sub-pixels to emit light based on the adjusted gray scale voltage signals. The gray scale voltage value of the target color sub-pixel is corrected, so that light emitted by each color sub-pixel is white balanced, and the problem of color cast is solved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display method, apparatus, device, and machine-readable storage medium.
Background
Organic Light-Emitting diodes (OLEDs) are increasingly used in the display field because of their advantages of active Light emission, viewing angle, fast response, wide color gamut, and low power consumption.
However, the inventors of the present application have found that the OLED display device has a color shift phenomenon such as a red shift or a violet shift in low-luminance display, and thus has a problem of poor display effect.
Disclosure of Invention
The embodiment of the application provides a display method, a display device, equipment and a machine-readable storage medium, which can solve the problem of color cast when OLED display equipment displays and improve the display effect.
In a first aspect, an embodiment of the present application provides a display method, which is applied to a display device, and the method includes:
before displaying image data, acquiring a first target brightness parameter of display equipment and a first voltage value of a target color sub-pixel in a display device, wherein the first voltage value is a voltage value of a gray scale voltage signal for driving a light-emitting element in the target color sub-pixel to emit light;
determining a first voltage adjustment parameter corresponding to the first target brightness parameter according to the first target brightness parameter and a predetermined corresponding relationship between the target brightness parameter and the voltage adjustment parameter; the voltage adjusting parameter is used for adjusting the first voltage value to a target voltage value, and the target voltage value is the voltage value of a gray scale voltage signal obtained through white balance adjustment under each target brightness parameter;
adjusting the voltage of the gray scale voltage signal to a target voltage value from a first voltage value based on the first voltage adjustment parameter to obtain an adjusted gray scale voltage signal;
and driving the light-emitting elements in the target color sub-pixels to emit light based on the adjusted gray scale voltage signals.
In a second aspect, an embodiment of the present application provides a display apparatus, which is applied to a display device, and includes:
the display device comprises an acquisition module, a display module and a control module, wherein the acquisition module is used for acquiring a first target brightness parameter of the display device and a first voltage value of a target color sub-pixel in the display device before displaying image data, and the first voltage value is a voltage value of a gray scale voltage signal for driving a light-emitting element in the target color sub-pixel to emit light;
the determining module is used for determining a first voltage adjusting parameter corresponding to the first target brightness parameter according to the first target brightness parameter and the corresponding relation between the predetermined target brightness parameter and the voltage adjusting parameter; the voltage adjusting parameter is used for adjusting the first voltage value to a target voltage value, and the target voltage value is the voltage value of a gray scale voltage signal obtained through white balance adjustment under each target brightness parameter;
the adjusting module is used for adjusting the voltage of the gray scale voltage signal to a target voltage value from a first voltage value based on the first voltage adjusting parameter to obtain an adjusted gray scale voltage signal;
and the driving module is used for driving the light-emitting elements in the target color sub-pixels to emit light based on the adjusted gray scale voltage signals.
In a third aspect, an embodiment of the present application provides a display device, where the display device includes: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the display method as provided by the first aspect.
In a fourth aspect, an embodiment of the present application provides a machine-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the display method as provided in the first aspect.
The embodiment of the application provides a display method, a display device, equipment and a machine-readable storage medium, wherein the method comprises the following steps: before displaying image data, acquiring a first target brightness parameter of display equipment and a first voltage value of a target color sub-pixel in a display device, wherein the first voltage value is a voltage value of a gray scale voltage signal for driving a light-emitting element in the target color sub-pixel to emit light; determining a first voltage adjustment parameter corresponding to the first target brightness parameter according to the first target brightness parameter and a predetermined corresponding relationship between the target brightness parameter and the voltage adjustment parameter; the voltage adjusting parameter is used for adjusting the first voltage value to a target voltage value, and the target voltage value is the voltage value of a gray scale voltage signal obtained through white balance adjustment under each target brightness parameter; adjusting the voltage of the gray scale voltage signal to a target voltage value from a first voltage value based on the first voltage adjustment parameter to obtain an adjusted gray scale voltage signal; and driving the light-emitting elements in the target color sub-pixels to emit light based on the adjusted gray scale voltage signals. According to the embodiment of the application, the gray scale voltage value of the target color sub-pixel in the display equipment is corrected, so that the light emitted by each color sub-pixel in the display equipment is white balanced, the color cast problem such as red cast or purple cast is eliminated, and the display effect is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an equivalent circuit of an organic light emitting diode;
FIG. 2 is a schematic diagram of charging RGB three-color sub-pixels with high duty ratio in the light-emitting period;
FIG. 3 is a schematic diagram of charging RGB three-color sub-pixels with low duty ratio in the light-emitting period;
fig. 4 is a schematic flowchart of a display method according to an embodiment of the present application;
fig. 5 is a schematic flowchart of a display method according to another embodiment of the present application;
fig. 6 is a schematic flowchart of a display method according to another embodiment of the present application, where 6a is a schematic flowchart of the display method when the voltage adjustment parameter is the voltage compensation amount, and 6b is a schematic flowchart of the display method when the voltage adjustment parameter is the ratio of the first voltage value to the target voltage value;
fig. 7 is a schematic flowchart of a display method according to another embodiment of the present application, in which 7a is a schematic flowchart of a display method when a voltage adjustment parameter is a voltage compensation amount, and 7b is a schematic flowchart of a display method when a voltage adjustment parameter is a ratio of a first voltage value to a target voltage value;
fig. 8 is a schematic flowchart of a display method according to another embodiment of the present application, where 8a is a schematic flowchart of the display method when the voltage adjustment parameter is the voltage compensation amount, and 8b is a schematic flowchart of the display method when the voltage adjustment parameter is the ratio of the first voltage value to the target voltage value;
fig. 9 is a schematic flowchart of a display device according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application 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 intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application 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 application by illustrating examples thereof.
It is noted that, herein, relational terms such as first, 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.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Before explaining the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically explains the problems existing in the prior art:
as shown in fig. 1, the OLED can be equivalently connected in parallel by a transistor T1 and an equivalent capacitor C1, when the OLED is lit, the equivalent capacitor C1 needs to be charged first, and when the capacitor terminal voltage is charged to the turn-on voltage of the transistor T1, the transistor T1 is turned on, and the OLED emits light.
As understood in conjunction with fig. 1, as shown in fig. 2, in the OLED display device, the light emitting period T3 includes a pulse rising edge period T31 and a pulse stabilization period T32. In the light-emitting period T3, the control signal input terminal emit outputs an on level, the sub-pixel is charged in the pulse rising period T31, and the sub-pixel stably emits light in the pulse stabilization period T322.
In the OLED display device, a pixel includes a red color sub-pixel (R sub-pixel), a green color sub-pixel (G sub-pixel), and a blue color sub-pixel (B sub-pixel). The inventors of the present application have found that the R, G, and B sub-pixels have different driving tube currents and equivalent capacitances, and thus the charging time T31 is different for the R, G, and B sub-pixels during light emission. As shown in FIG. 2, the charging time of the R sub-pixel is T31-R, G, the charging time of the B sub-pixel is T31-G, and the charging time of the G sub-pixel is T31-B, wherein the capacitance of the equivalent capacitor of the G sub-pixel is the largest, so the charging time of the G sub-pixel is the longest T31-G.
As shown in fig. 2, when the duty ratio in the light emission period is large, the duty ratio in the pulse rising edge period T31 is small, and the duty ratio in the pulse stabilization period T32 is large, and the problem of color shift to red or violet hardly occurs. The duty ratio of the light-emitting stage can be understood as the proportion of the light-emitting stage T3 in one frame time, and the larger the duty ratio of the light-emitting stage is, the longer the light-emitting stage T3 is; the smaller the light emission phase duty ratio, the shorter the light emission phase T3.
As shown in fig. 2 and fig. 3, as the duty ratio of the light-emitting period is gradually decreased, the duty ratio of the pulse rising edge period T31 in the light-emitting period T3 is increased, and the difference between the charging times of the sub-pixels with different colors is more obvious. Since the charging time (non-emission time) T31-G of the G sub-pixel is longest, the G color luminance is the lowest, and thus a color shift problem of being shifted to red or violet (red plus blue) occurs.
In addition, the inventor of the present application has found that, besides the duty ratio of the light emitting stage affects the color shift, the problem of the color shift is more serious as the gray scale level is reduced, and thus the gray scale level also affects the color shift.
In view of the foregoing findings, embodiments of the present application provide a display method, apparatus, device, and machine-readable storage medium to solve the color shift problem in the prior art.
The technical idea of the embodiment of the application is as follows: when the image data is ready to be displayed, the gray scale voltage value of the G sub-pixel is adjusted, the brightness of the G sub-pixel is improved, and therefore the problem of color cast such as red cast or purple cast is solved. Or adjusting the gray scale voltage values of the B sub-pixel and the R sub-pixel, and reducing the brightness of the B sub-pixel and the R sub-pixel, thereby solving the color cast problem of red cast or purple cast. Or, the brightness of the G sub-pixel is improved, and simultaneously, the brightness of the B sub-pixel and the R sub-pixel is reduced, so that the problem of color cast such as red cast or purple cast of display is solved.
The display method of the embodiment of the application is applied to the display device, and in order to facilitate understanding of the embodiment of the application, before the display method is introduced, the display device is briefly introduced.
In the display device, the pixel may include an R sub-pixel, a G sub-pixel, and a B sub-pixel. Each color sub-pixel has a gray scale voltage generation circuit to provide gray scale voltage (also called gamma voltage) for it individually. For example, the R sub-pixel corresponds to an R sub-pixel gray scale voltage generation circuit, the G sub-pixel corresponds to a G sub-pixel gray scale voltage generation circuit, the B sub-pixel corresponds to a B sub-pixel gray scale voltage generation circuit, and each gray scale voltage generation circuit is only used for driving the sub-pixel of the corresponding color. Taking the G sub-pixel as an example, the gray scale voltage signal generated by the gray scale voltage generating circuit of the G sub-pixel is transmitted to the G sub-pixel to drive the light emitting element of the G sub-pixel to emit light. The magnitude of the voltage value of the gray scale voltage signal can determine the brightness of the light emitting element.
The following describes a display method provided in an embodiment of the present application.
Fig. 4 is a schematic flowchart of a display method according to an embodiment of the present application. As shown in fig. 4, the method may include the steps of:
s101, before image data is displayed, a first target brightness parameter of the display device and a first voltage value of a target color sub-pixel in the display device are obtained.
The first voltage value may be understood as a voltage value of a gray scale voltage signal generated by a gray scale voltage generating circuit corresponding to the target color sub-pixel, that is, a voltage value of a gray scale voltage signal for driving a light emitting element in the target color sub-pixel to emit light. Here, it should be noted that the acquired first voltage value may be a voltage value of a gray-scale voltage signal corresponding to the target color sub-pixel at the present time.
In some embodiments, the target brightness parameters may include a lighting phase duty cycle and/or a gray scale level of the display device. Accordingly, the first target brightness parameter may also be understood as a duty cycle and/or a gray scale level of the light emitting phase of the display device.
Specifically, in S101, for example, before displaying the image data, i.e., when preparing to display the image data, the duty ratio and/or the gray scale level of the light emitting stage of the display device may be acquired, and the first voltage value of the target color sub-pixel may be acquired. The duty ratio of the light-emitting stage has the value range as follows: 0-100%, and the value range of the gray scale level is as follows: 0 to 255. For example, the duty ratio of the light emitting stage of the display device at the present time is obtained to be 60%, the gray scale level is 32, and the first voltage value is 5V.
S102, determining a first voltage adjusting parameter corresponding to the first target brightness parameter according to the first target brightness parameter and the corresponding relation between the predetermined target brightness parameter and the voltage adjusting parameter.
In the embodiment of the present application, a corresponding relationship between the target brightness parameter and the voltage adjustment parameter is predetermined. The voltage adjustment parameter may be configured to adjust the first voltage value to a target voltage value, where the target voltage value is a voltage value of a grayscale voltage signal obtained through white balance adjustment under each target luminance parameter.
Specifically, as shown in fig. 5, before S101, the display method may further include the following steps S11, S12, and S13.
And S11, acquiring a plurality of second voltage values of the target color sub-pixel under a plurality of target brightness parameters. The second voltage values correspond to the target brightness parameters one to one, and each second voltage value is a voltage value of a gray scale voltage signal of the target color sub-pixel under the target brightness parameter corresponding to the second voltage value.
In one example, a plurality of second voltage values in the case where the duty ratios of the light emission periods are 5%, 10%, 15%, and 20%, respectively, and the gray-scale levels are 8, 32, and 96, respectively, are obtained, for example, as shown in table 1.
TABLE 1
As shown in table 1, the second voltage values of V with duty ratios of 5%, 10%, 15%, and 20% and a step level of 8 in the emission period are obtained, for exampledata8Obtaining a second voltage value V with duty ratios of 5%, 10%, 15% and 20% respectively and a step level of 32 in the light-emitting stagedata32Obtaining a second voltage value V with the duty ratios of 5%, 10%, 15% and 20% respectively and the order level of 96 in the light-emitting stagedata96。
S12, adjusting the voltage of the gray scale voltage signal under each target brightness parameter to make the light emitted by each color sub-pixel in the display device reach white balance, and recording the target voltage value corresponding to each target brightness parameter when the white balance is reached.
It is easy to understand that if the gray scale voltage signal is according to the original voltage value (e.g. V)data8) The light emitting elements in the sub-pixels of the target color are driven to emit light, which causes a color shift problem. Then, in order to eliminate color shift, the embodiments of the present application adjust the voltages of the grayscale voltage signals under each target luminance parameter, so that the lights emitted by the R, G, and B sub-pixels in the display device reach white balance to eliminate color shift. And when the white balance is achieved, the voltage value of the gray scale voltage signal corresponding to each target brightness parameter is the target voltage value corresponding to each target brightness parameter.
Table 2 schematically shows target voltage values of G sub-pixels corresponding to part of the target luminance parameters.
TABLE 2
In Table 2, k1And k2Are all coefficient, k1And k2The value ranges are all 0-1, k1＞k2. As can be seen from table 2, for the G sub-pixel, the target voltage value is positively correlated with the duty ratio of the light-emitting period, and the target voltage value is positively correlated with the gray scale level. Taking the gray scale level of 96 as an example, it can be seen that as the duty ratio is decreased from 20% to 5% in the light emitting period, the target voltage value is gradually decreased, because the smaller the voltage value of the gray scale voltage signal is, the brighter the light emitted from the light emitting element of the sub-pixel is. Then, with the light-emitting phase being occupiedThe more the color shift phenomenon is conspicuous due to the reduction of the space ratio, the brighter the light emitted from the light emitting element of the G sub-pixel, that is, the smaller the voltage value of the gray scale voltage signal of the G sub-pixel is required to eliminate the color shift.
As can be seen from table 2, even though the duty ratios of the light emitting periods are 20% in the same column, the target voltage value of the gray scale level 48 and the target voltage value of the gray scale level 32 are different. Different from this, V is not meantdata48And Vdata32Different, but the coefficient k1And k2Is different. That is, as the gray scale level becomes smaller, the color shift phenomenon becomes more conspicuous, and in order to eliminate the color shift, it may be necessary to reduce the voltage value by only a small factor based on the original voltage value at the gray scale level of 48, and by a large factor based on the original voltage value at the gray scale level of 32. In addition, the coefficient k in Table 21And k2For illustration, each gray scale level may correspond to a coefficient, for example, gray scale level 48 corresponds to coefficient k1, gray scale level 47 corresponds to coefficient k2, and gray scale level 47 corresponds to coefficient k3, but the present application is not limited thereto.
In addition, as can be seen from table 2, the target voltage value is the same regardless of the change of the duty ratio in the light emission phase at the gray scale level 127. Description of the drawings: when the gray scale level is greater than or equal to 127, the color shift phenomenon is weaker or even does not exist, so that the voltage value of the gray scale voltage signal does not need to be corrected and adjusted.
And S13, determining a voltage adjustment parameter corresponding to each target brightness parameter according to the second voltage value corresponding to each target brightness parameter and the target voltage value corresponding to each target brightness parameter.
Specifically, after the second voltage value corresponding to each target brightness parameter and the target voltage value corresponding to each target brightness parameter are determined, the voltage adjustment parameter corresponding to each target brightness parameter may be determined. Illustratively, the voltage adjustment parameter may be, for example, a voltage compensation amount Δ V of the gray-scale voltage signaldataI.e. by
Vdata’＝Vdata+ΔVdata (1)
Or, Vdata’＝Vdata-ΔVdata (2)
Wherein, Vdata' represents a target voltage value; vdataRepresents a second voltage value or a first voltage value; Δ VdataIndicating the amount of voltage compensation, Δ Vdata＝m*VdataM is a coefficient, and the value range of m is 0-1.
For example, the voltage adjustment parameter may be a ratio k of the second voltage value/the first voltage value to the target voltage value, i.e. the voltage adjustment parameter is
Vdata’＝k*Vdata (3)
Wherein k represents a coefficient, and k is not less than 0.
Table 3 schematically shows voltage adjustment parameters of G sub-pixels corresponding to part of the target luminance parameters.
TABLE 3
As shown in table 3, the voltage adjustment parameter may be, for example, a ratio of the second voltage value/the first voltage value to the target voltage value.
In some embodiments, the correspondence between the target brightness parameter and the voltage adjustment parameter may be stored in the form of a data table, for example. With continued reference to fig. 4, in S102, for example, a first voltage adjustment parameter corresponding to the first target brightness parameter may be determined according to the stored corresponding relationship between the target brightness parameter and the voltage adjustment parameter by a direct table lookup or a linear interpolation manner. For example, when the voltage adjustment parameter is the ratio of the second voltage value/the first voltage value to the target voltage value, it is determined that the first voltage adjustment parameter corresponding to the duty ratio of 20% and the gray scale level of 32 in the light emitting stage is 0.2k2。
S103, adjusting the voltage of the gray scale voltage signal to a target voltage value from a first voltage value based on the first voltage adjustment parameter to obtain an adjusted gray scale voltage signal.
In some embodiments, the target color sub-pixel comprises a green color sub-pixel, the first voltage value comprises a first sub-voltage value of the green color sub-pixel, the first sub-voltage value is a voltage value of a first gray scale voltage signal for driving a light emitting element in the green color sub-pixel to emit light, and the target voltage value comprises a corresponding first target voltage value of the green color sub-pixel.
As shown in fig. 6a, when the first voltage adjustment parameter is the first voltage compensation amount of the first grayscale voltage signal, S103 may include the following steps:
and calculating a first difference between the first sub-voltage value and the first voltage compensation amount, and adjusting the voltage value of the first gray scale voltage signal to be the first difference. The expression is as follows:
VGdata’＝VGdata-ΔVGdata (4)
wherein, VGdata' represents a first target voltage value corresponding to the green color sub-pixel; vGdataRepresenting a first sub-voltage value; Δ VGdataRepresenting a first voltage compensation amount.
As shown in fig. 6b, when the first voltage adjustment parameter is a first ratio of the first sub-voltage value to the first target voltage value, S103 may include the following steps:
calculating a first product of the first sub-voltage value and the first ratio, and adjusting the voltage value of the first gray scale voltage signal to the first product. The expression is as follows:
VGdata’＝kG*VGdata (5)
wherein, VGdata' represents a first target voltage value corresponding to the green color sub-pixel; vGdataRepresenting a first sub-voltage value; k is a radical ofGThe first ratio is indicated.
In some embodiments, the target color sub-pixel includes a red color sub-pixel and a blue color sub-pixel, the first voltage value includes a second sub-voltage value of the red color sub-pixel and a third sub-voltage value of the blue color sub-pixel, the second sub-voltage value is a voltage value of a second gray scale voltage signal driving a light emitting element in the red color sub-pixel to emit light, the third sub-voltage value is a voltage value of a third gray scale voltage signal driving a light emitting element in the blue color sub-pixel to emit light, and the target voltage value includes a second target voltage value corresponding to the red color sub-pixel and a third target voltage value corresponding to the blue color sub-pixel.
As shown in fig. 7a, when the first voltage adjustment parameter includes a second voltage compensation amount of the second grayscale voltage signal and a third voltage compensation amount of the third grayscale voltage signal, S103 may include the steps of:
a first sum value between the second sub-voltage value and the second voltage compensation amount is calculated, and the voltage of the second gray scale voltage signal is adjusted to the first sum value. The expression is as follows:
VRdata’＝VRdata+ΔVRdata (6)
wherein, VRdata' represents a second target voltage value corresponding to the red color sub-pixel; vRdataRepresenting a second sub-voltage value; Δ VRdataRepresenting a second voltage compensation amount.
And calculating a second sum value between the third sub-voltage value and the third voltage compensation amount, and adjusting the voltage of the third gray-scale voltage signal to the second sum value. The expression is as follows:
VBdata’＝VBdata+ΔVBdata (7)
wherein, VBdata' represents a second target voltage value corresponding to the blue-color sub-pixel; vBdataRepresents a third sub-voltage value; Δ VBdataRepresenting a third voltage compensation amount.
As shown in fig. 7b, when the first voltage adjustment parameter includes a second ratio of the second sub-voltage value to the second target voltage value and a third ratio of the third sub-voltage value to the third target voltage value, S103 may include the following steps:
a second product of the second sub-voltage value and the second ratio is calculated, and the voltage of the second gray scale voltage signal is adjusted to the second product. The expression is as follows:
VRdata’＝kR*VRdata (8)
wherein k isRA second ratio is indicated.
And calculating a third product of the third sub-voltage value and the third ratio, and adjusting the voltage of the third gray-scale voltage signal to be the third product. The expression is as follows:
VBdata’＝kB*VBdata (9)
wherein k isBA third ratio is indicated.
In some embodiments, the target color sub-pixel comprises a red color sub-pixel, a blue color sub-pixel, and a green color sub-pixel, the first voltage value comprises a first sub-voltage value of the green color sub-pixel, the first sub-voltage value includes a voltage value of a first gray scale voltage signal for driving a light emitting element in the green sub-pixel to emit light, the second sub-voltage value is a voltage value of a second gray scale voltage signal for driving a light emitting element in the red sub-pixel to emit light, the third sub-voltage value is a voltage value of a third gray scale voltage signal for driving a light emitting element in the blue sub-pixel to emit light, and the target voltage values include a first target voltage value corresponding to the green sub-pixel, a second target voltage value corresponding to the red sub-pixel, and a third target voltage value corresponding to the blue sub-pixel.
As shown in fig. 8a, when the first voltage adjustment parameter includes a first voltage compensation amount of the first gray scale voltage signal, a second voltage compensation amount of the second gray scale voltage signal, and a third voltage compensation amount of the third gray scale voltage signal, S103 may include the steps of:
calculating a first difference value between the first sub-voltage value and the first voltage compensation amount, and adjusting the voltage value of the first gray scale voltage signal to be the first difference value;
calculating a first sum value between the second sub-voltage value and the second voltage compensation amount, and adjusting the voltage of the second gray scale voltage signal to the first sum value;
and calculating a second sum value between the third sub-voltage value and the third voltage compensation amount, and adjusting the voltage of the third gray-scale voltage signal to the second sum value. For details, reference may be made to expressions (4), (6) and (7), which are not described herein again.
As shown in fig. 8b, when the first voltage adjustment parameter includes a first ratio of the first sub-voltage value to the first target voltage value, a second ratio of the second sub-voltage value to the second target voltage value, and a third ratio of the third sub-voltage value to the third target voltage value, S103 may include the following steps:
calculating a first product of the first sub-voltage value and the first ratio, and adjusting the voltage value of the first gray scale voltage signal to be the first product;
calculating a second product of the second sub-voltage value and the second ratio, and adjusting the voltage of the second gray scale voltage signal to the second product;
and calculating a third product of the third sub-voltage value and the third ratio, and adjusting the voltage of the third gray-scale voltage signal to be the third product. For details, reference may be made to expressions (5), (8), and (9), which are not described herein again.
It can be understood that, under the same target luminance parameter, the voltage values of the gray scale voltage signals of the red color sub-pixel, the blue color sub-pixel and the green color sub-pixel are adjusted simultaneously, and are different from the voltage value of the gray scale voltage signal of only the green color sub-pixel, or the voltage adjustment parameter of only the voltage values of the gray scale voltage signals of the red color sub-pixel and the blue color sub-pixel, and particularly, the voltage adjustment parameters can be adjusted flexibly according to the actual situation.
And S104, driving the light-emitting elements in the target color sub-pixels to emit light based on the adjusted gray scale voltage signals. Namely, the adjusted gray scale voltage signal is used for driving the light emitting element in the target color sub-pixel to emit light, so that the normal display of image data is realized, and the color cast phenomenon is eliminated.
As described above, for example, when the gray scale level is equal to or greater than 127, the color shift phenomenon is weak or even absent. Similarly, the inventors of the present application have found that when the duty ratio in the light emitting period is greater than or equal to a threshold (e.g., 20%), the color shift phenomenon is weak or even absent. That is, when the gray scale level is greater than or equal to the first threshold value or the duty ratio of the light emitting period is greater than or equal to the second threshold value, the voltage value of the gray scale voltage signal does not need to be corrected and adjusted.
Therefore, a step can be added in S101 and S102: and judging whether the first target brightness parameter is smaller than a preset threshold value. Specifically, for example, it may be determined whether the gray scale level is less than a first threshold or the light emitting phase duty ratio is less than a second threshold. S102 may specifically include: and when the gray scale level is smaller than a first threshold or the duty ratio of the light-emitting stage is smaller than a second threshold, determining a first voltage adjustment parameter corresponding to the first target brightness parameter according to the first target brightness parameter, the predetermined corresponding relation between the target brightness parameter and the voltage adjustment parameter.
Based on the display method provided by the above embodiment, correspondingly, the application also provides a specific implementation manner of the display device. Please see the examples below.
Referring to fig. 9, a display device 900 provided in an embodiment of the present application includes the following modules:
an obtaining module 901, configured to obtain a first target luminance parameter of a display device and a first voltage value of a target color sub-pixel in the display device before displaying image data, where the first voltage value is a voltage value of a gray scale voltage signal for driving a light emitting element in the target color sub-pixel to emit light;
a determining module 902, configured to determine a first voltage adjustment parameter corresponding to the first target brightness parameter according to the first target brightness parameter, a predetermined correspondence between the target brightness parameter and the voltage adjustment parameter; the voltage adjusting parameter is used for adjusting the first voltage value to a target voltage value, and the target voltage value is the voltage value of a gray scale voltage signal obtained through white balance adjustment under each target brightness parameter;
an adjusting module 903, configured to adjust a voltage of the grayscale voltage signal from a first voltage value to a target voltage value based on the first voltage adjustment parameter, so as to obtain an adjusted grayscale voltage signal;
and a driving module 904, configured to drive the light emitting elements in the target color sub-pixels to emit light based on the adjusted gray scale voltage signals.
The embodiment of the present application provides a display apparatus, where the obtaining module 901 is configured to obtain a first target luminance parameter of a display device and a first voltage value of a target color sub-pixel in the display apparatus before displaying image data, where the first voltage value is a voltage value of a gray scale voltage signal for driving a light emitting element in the target color sub-pixel to emit light; the determining module 902 is configured to determine a first voltage adjustment parameter corresponding to the first target brightness parameter according to the first target brightness parameter, a predetermined correspondence between the target brightness parameter and the voltage adjustment parameter; the voltage adjusting parameter is used for adjusting the first voltage value to a target voltage value, and the target voltage value is the voltage value of a gray scale voltage signal obtained through white balance adjustment under each target brightness parameter; the adjusting module 903 is configured to adjust a voltage of the grayscale voltage signal from a first voltage value to a target voltage value based on the first voltage adjustment parameter, so as to obtain an adjusted grayscale voltage signal; the driving module 904 is configured to drive the light emitting elements in the target color sub-pixels to emit light based on the adjusted gray scale voltage signals. According to the embodiment of the application, the gray scale voltage value of the target color sub-pixel in the display equipment is corrected, so that the light emitted by each color sub-pixel in the display equipment is white balanced, the color cast problem such as red cast or purple cast is eliminated, and the display effect is improved.
In some embodiments, the target brightness parameters include a lighting phase duty cycle and/or a gray scale level of the display device.
In some embodiments, the target color sub-pixel comprises a green color sub-pixel, the first voltage value comprises a first sub-voltage value of the green color sub-pixel, the first sub-voltage value is a voltage value of a first gray scale voltage signal for driving a light emitting element in the green color sub-pixel to emit light, and the target voltage value comprises a corresponding first target voltage value of the green color sub-pixel;
when the first voltage adjustment parameter is the first voltage compensation amount of the first grayscale voltage signal, the adjusting module 903 is specifically configured to:
calculating a first difference value between the first sub-voltage value and the first voltage compensation amount, and adjusting the voltage value of the first gray scale voltage signal to be the first difference value;
when the first voltage adjustment parameter is a first ratio of the first sub-voltage value to the first target voltage value, the adjustment module 903 is specifically configured to:
calculating a first product of the first sub-voltage value and the first ratio, and adjusting the voltage value of the first gray scale voltage signal to the first product.
In some embodiments, the target color sub-pixel includes a red color sub-pixel and a blue color sub-pixel, the first voltage value includes a second sub-voltage value of the red color sub-pixel and a third sub-voltage value of the blue color sub-pixel, the second sub-voltage value is a voltage value of a second gray scale voltage signal that drives a light emitting element in the red color sub-pixel to emit light, and the third sub-voltage value is a voltage value of a third gray scale voltage signal that drives a light emitting element in the blue color sub-pixel to emit light;
when the first voltage adjustment parameter includes a second voltage compensation amount of the second grayscale voltage signal and a third voltage compensation amount of the third grayscale voltage signal, the adjustment module 903 is specifically configured to:
calculating a first sum value between the second sub-voltage value and the second voltage compensation amount, and adjusting the voltage of the second gray scale voltage signal to the first sum value;
and calculating a second sum value between the third sub-voltage value and the third voltage compensation amount, and adjusting the voltage of the third gray-scale voltage signal to the second sum value.
In some embodiments, the target voltage values include a second target voltage value corresponding to a red color sub-pixel and a third target voltage value corresponding to a blue color sub-pixel;
when the first voltage adjustment parameter includes a second ratio of the second sub-voltage value to the second target voltage value and a third ratio of the third sub-voltage value to the third target voltage value, the adjustment module 903 is specifically configured to:
calculating a second product of the second sub-voltage value and the second ratio, and adjusting the voltage of the second gray scale voltage signal to the second product;
and calculating a third product of the third sub-voltage value and the third ratio, and adjusting the voltage of the third gray-scale voltage signal to be the third product.
In some embodiments, the target color sub-pixel includes a red color sub-pixel, a blue color sub-pixel, and a green color sub-pixel, the first voltage value includes a first sub-voltage value of the green color sub-pixel, a second sub-voltage value of the red color sub-pixel, and a third sub-voltage value of the blue color sub-pixel, the first sub-voltage value includes a voltage value of a first gray scale voltage signal that drives a light emitting element in the green color sub-pixel to emit light, the second sub-voltage value is a voltage value of a second gray scale voltage signal that drives a light emitting element in the red color sub-pixel to emit light, and the third sub-voltage value is a voltage value of a third gray scale voltage signal that drives a light emitting element in the blue color sub-pixel to emit light;
when the first voltage adjustment parameter includes a first voltage compensation amount of the first grayscale voltage signal, a second voltage compensation amount of the second grayscale voltage signal, and a third voltage compensation amount of the third grayscale voltage signal, the adjustment module 903 is specifically configured to:
calculating a first difference value between the first sub-voltage value and the first voltage compensation amount, and adjusting the voltage value of the first gray scale voltage signal to be the first difference value;
calculating a first sum value between the second sub-voltage value and the second voltage compensation amount, and adjusting the voltage of the second gray scale voltage signal to the first sum value;
and calculating a second sum value between the third sub-voltage value and the third voltage compensation amount, and adjusting the voltage of the third gray-scale voltage signal to the second sum value.
In some embodiments, the target voltage values include a first target voltage value corresponding to a green color sub-pixel, a second target voltage value corresponding to a red color sub-pixel, and a third target voltage value corresponding to a blue color sub-pixel;
when the first voltage adjustment parameter includes a first ratio of the first sub-voltage value to the first target voltage value, a second ratio of the second sub-voltage value to the second target voltage value, and a third ratio of the third sub-voltage value to the third target voltage value, the adjustment module 903 is specifically configured to:
calculating a first product of the first sub-voltage value and the first ratio, and adjusting the voltage value of the first gray scale voltage signal to be the first product;
calculating a second product of the second sub-voltage value and the second ratio, and adjusting the voltage of the second gray scale voltage signal to the second product;
and calculating a third product of the third sub-voltage value and the third ratio, and adjusting the voltage of the third gray-scale voltage signal to be the third product.
In some embodiments, the display device 900 provided in this embodiment may further include a voltage adjustment parameter determining module, where the voltage adjustment parameter determining module is configured to:
acquiring a plurality of second voltage values of the target color sub-pixels under a plurality of target brightness parameters, wherein the second voltage values correspond to the target brightness parameters one by one, and each second voltage value is a voltage value of a gray scale voltage signal under the target brightness parameter corresponding to the second voltage value;
adjusting the voltage of the gray scale voltage signal under each target brightness parameter to ensure that light emitted by each color sub-pixel in the display device reaches white balance, and recording a target voltage value corresponding to each target brightness parameter when the white balance is reached;
and determining a voltage adjustment parameter corresponding to each target brightness parameter according to the second voltage value corresponding to each target brightness parameter and the target voltage value corresponding to each target brightness parameter.
Based on the display method provided by the above embodiment, correspondingly, the application further provides a specific implementation manner of the display device. The display device includes: the display device comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps of the display method provided by the embodiment of the application when being executed by the processor.
In addition, in combination with the display method in the foregoing embodiments, the embodiments of the present application may be implemented by providing a machine-readable storage medium. The machine-readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the display methods of the above embodiments. Examples of a machine-readable storage medium include non-transitory computer-readable storage media such as electronic circuits, semiconductor memory devices, ROMs, random access memories, flash memories, erasable ROMs (eroms), floppy disks, CD-ROMs, optical disks, and hard disks.
It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present application.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic Circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. 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.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Aspects of the present application are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.
Claims (10)
1. A display method is applied to a display device and comprises the following steps:
before displaying image data, acquiring a first target brightness parameter of the display device and a first voltage value of a target color sub-pixel in the display device, wherein the first voltage value is a voltage value of a gray scale voltage signal for driving a light emitting element in the target color sub-pixel to emit light;
determining a first voltage adjustment parameter corresponding to the first target brightness parameter according to the corresponding relation between the first target brightness parameter, a predetermined target brightness parameter and a voltage adjustment parameter; the voltage adjustment parameter is used for adjusting the first voltage value to a target voltage value, and the target voltage value is the voltage value of the gray scale voltage signal obtained by white balance adjustment under each target brightness parameter;
adjusting the voltage of the gray scale voltage signal to the target voltage value from the first voltage value based on the first voltage adjustment parameter to obtain an adjusted gray scale voltage signal;
driving a light emitting element in the target color sub-pixel to emit light based on the adjusted gray scale voltage signal;
the target brightness parameters include a light emitting stage duty ratio and a gray scale level of the display device.
2. The method of claim 1, wherein the target color sub-pixel comprises a green color sub-pixel, wherein the first voltage value comprises a first sub-voltage value of the green color sub-pixel, wherein the first sub-voltage value is a voltage value of a first gray scale voltage signal for driving a light emitting element in the green color sub-pixel to emit light, and wherein the target voltage value comprises a corresponding first target voltage value of the green color sub-pixel;
when the first voltage adjustment parameter is a first voltage compensation amount of the first grayscale voltage signal, the adjusting the voltage of the grayscale voltage signal from the first voltage value to the target voltage value based on the first voltage adjustment parameter specifically includes:
calculating a first difference between the first sub-voltage value and the first voltage compensation amount, and adjusting the voltage value of the first gray scale voltage signal to the first difference;
when the first voltage adjustment parameter is a first ratio of the first sub-voltage value to the first target voltage value, the adjusting the voltage of the grayscale voltage signal from the first voltage value to the target voltage value based on the first voltage adjustment parameter specifically includes:
and calculating a first product of the first sub-voltage value and the first ratio, and adjusting the voltage value of the first gray scale voltage signal to be the first product.
3. The method according to claim 1, wherein the target color sub-pixel comprises a red color sub-pixel and a blue color sub-pixel, the first voltage value comprises a second sub-voltage value of the red color sub-pixel and a third sub-voltage value of the blue color sub-pixel, the second sub-voltage value is a voltage value of a second gray scale voltage signal for driving a light emitting element in the red color sub-pixel to emit light, and the third sub-voltage value is a voltage value of a third gray scale voltage signal for driving a light emitting element in the blue color sub-pixel to emit light;
when the first voltage adjustment parameter includes a second voltage compensation amount of the second grayscale voltage signal and a third voltage compensation amount of the third grayscale voltage signal, the adjusting the voltage of the grayscale voltage signal from the first voltage value to the target voltage value based on the first voltage adjustment parameter specifically includes:
calculating a first sum value between the second sub-voltage value and the second voltage compensation amount, and adjusting the voltage of the second gray scale voltage signal to the first sum value;
and calculating a second summation value between the third sub-voltage value and the third voltage compensation amount, and adjusting the voltage of the third gray scale voltage signal to the second summation value.
4. The method of claim 3, wherein the target voltage values comprise a second target voltage value corresponding to the red color sub-pixel and a third target voltage value corresponding to the blue color sub-pixel;
when the first voltage adjustment parameter includes a second ratio of the second sub-voltage value to the second target voltage value and a third ratio of the third sub-voltage value to the third target voltage value, the adjusting the voltage of the grayscale voltage signal from the first voltage value to the target voltage value based on the first voltage adjustment parameter specifically includes:
calculating a second product of the second sub-voltage value and the second ratio, and adjusting the voltage of the second gray scale voltage signal to the second product;
and calculating a third product of the third sub-voltage value and the third ratio, and adjusting the voltage of the third gray scale voltage signal to be the third product.
5. The method according to claim 1, wherein the target color sub-pixel includes a red color sub-pixel, a blue color sub-pixel, and a green color sub-pixel, the first voltage value includes a first sub-voltage value of the green color sub-pixel, a second sub-voltage value of the red color sub-pixel, and a third sub-voltage value of the blue color sub-pixel, the first sub-voltage value includes a voltage value of a first gray scale voltage signal that drives a light emitting element in the green color sub-pixel to emit light, the second sub-voltage value is a voltage value of a second gray scale voltage signal that drives a light emitting element in the red color sub-pixel to emit light, and the third sub-voltage value is a voltage value of a third gray scale voltage signal that drives a light emitting element in the blue color sub-pixel to emit light;
when the first voltage adjustment parameter includes a first voltage compensation amount of the first grayscale voltage signal, a second voltage compensation amount of the second grayscale voltage signal, and a third voltage compensation amount of the third grayscale voltage signal, the adjusting the voltage of the grayscale voltage signal from the first voltage value to the target voltage value based on the first voltage adjustment parameter specifically includes:
calculating a first difference between the first sub-voltage value and the first voltage compensation amount, and adjusting the voltage value of the first gray scale voltage signal to the first difference;
calculating a first sum value between the second sub-voltage value and the second voltage compensation amount, and adjusting the voltage of the second gray scale voltage signal to the first sum value;
and calculating a second summation value between the third sub-voltage value and the third voltage compensation amount, and adjusting the voltage of the third gray scale voltage signal to the second summation value.
6. The method of claim 5, wherein the target voltage values comprise a first target voltage value corresponding to the green color sub-pixel, a second target voltage value corresponding to the red color sub-pixel, and a third target voltage value corresponding to the blue color sub-pixel;
when the first voltage adjustment parameter includes a first ratio of the first sub-voltage value to the first target voltage value, a second ratio of the second sub-voltage value to the second target voltage value, and a third ratio of the third sub-voltage value to the third target voltage value, the adjusting the voltage of the grayscale voltage signal from the first voltage value to the target voltage value based on the first voltage adjustment parameter specifically includes:
calculating a first product of the first sub-voltage value and the first ratio, and adjusting the voltage value of the first gray scale voltage signal to the first product;
calculating a second product of the second sub-voltage value and the second ratio, and adjusting the voltage of the second gray scale voltage signal to the second product;
and calculating a third product of the third sub-voltage value and the third ratio, and adjusting the voltage of the third gray scale voltage signal to be the third product.
7. The method of claim 1, further comprising, before said obtaining a first target luminance parameter of the display device and a first voltage value of a target color sub-pixel in the display device:
acquiring a plurality of second voltage values of the target color sub-pixels under a plurality of target brightness parameters, wherein the second voltage values correspond to the target brightness parameters one by one, and each second voltage value is a voltage value of the gray scale voltage signal under the target brightness parameter corresponding to the second voltage value;
adjusting the voltage of the gray scale voltage signal under each target brightness parameter to enable light emitted by each color sub-pixel in the display equipment to reach white balance, and recording a target voltage value corresponding to each target brightness parameter when the white balance is reached;
and determining a voltage adjustment parameter corresponding to each target brightness parameter according to the second voltage value corresponding to each target brightness parameter and the target voltage value corresponding to each target brightness parameter.
8. A display device, applied to a display apparatus, comprising:
an obtaining module, configured to obtain a first target luminance parameter of the display device and a first voltage value of a target color sub-pixel in the display device before displaying image data, where the first voltage value is a voltage value of a gray scale voltage signal that drives a light emitting element in the target color sub-pixel to emit light;
the determining module is used for determining a first voltage adjusting parameter corresponding to the first target brightness parameter according to the corresponding relation among the first target brightness parameter, a predetermined target brightness parameter and a voltage adjusting parameter; the voltage adjustment parameter is used for adjusting the first voltage value to a target voltage value, and the target voltage value is the voltage value of the gray scale voltage signal obtained by white balance adjustment under each target brightness parameter;
the adjusting module is used for adjusting the voltage of the gray scale voltage signal to the target voltage value from the first voltage value based on the first voltage adjusting parameter to obtain an adjusted gray scale voltage signal;
the driving module is used for driving the light-emitting elements in the target color sub-pixels to emit light based on the adjusted gray scale voltage signals;
the target brightness parameters include a light emitting stage duty ratio and a gray scale level of the display device.
9. A display device, characterized in that the display device comprises: processor, memory and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the display method according to any one of claims 1 to 7.
10. A machine readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the display method according to any one of claims 1 to 7.
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| CN113889035B (en) * | 2021-09-29 | 2022-11-04 | 京东方科技集团股份有限公司 | Voltage control method, device, equipment and storage medium for pixel circuit |
| CN114023256B (en) * | 2021-10-18 | 2023-06-13 | 云谷（固安）科技有限公司 | Display panel, pixel circuit and display device |
| CN114023235B (en) * | 2021-11-10 | 2023-09-15 | 昆山国显光电有限公司 | Display panel driving method, electronic device, and computer-readable storage medium |
| CN115035874B (en) * | 2022-07-21 | 2023-08-25 | 硅谷数模(苏州)半导体股份有限公司 | Method for adjusting output electrical signal of power management chip and screen driver board |
| CN116758849B (en) * | 2023-05-25 | 2024-12-10 | 重庆惠科金渝光电科技有限公司 | Display panel driving method and display device |
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