CN111564133A - Driving method and driving device of display panel and display device - Google Patents
Driving method and driving device of display panel and display device Download PDFInfo
- Publication number
- CN111564133A CN111564133A CN202010534587.XA CN202010534587A CN111564133A CN 111564133 A CN111564133 A CN 111564133A CN 202010534587 A CN202010534587 A CN 202010534587A CN 111564133 A CN111564133 A CN 111564133A
- Authority
- CN
- China
- Prior art keywords
- value
- backlight value
- pixel
- backlight
- brightness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a driving method, a driving device and a display device of a display panel, wherein the driving method comprises the following steps: when the intensity of the ambient light where the display panel is located is determined to be smaller than a preset light intensity threshold value, determining related parameters of brightness and saturation of each pixel in an image to be displayed; determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to related parameters of brightness and saturation of each pixel in the image to be displayed; and controlling the backlight module to emit light with corresponding brightness values by adopting the target backlight value, and determining corresponding pixel compensation gain values to perform brightness compensation on each pixel in the display panel according to the target backlight value. For reducing power consumption while ensuring display brightness.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a driving method and a driving apparatus for a display panel, and a display apparatus.
Background
The RGBW display technology adds a white sub-pixel on the basis of RGB three primary colors, and four colors are mixed in space for display. The high transmittance of the white sub-pixel can significantly improve the brightness of the display. For RGBW displays, it has a higher luminance in luminance than an RGB display at the same power consumption. However, in an indoor environment, excessive brightness inevitably causes unnecessary energy waste.
How to reduce power consumption while ensuring display brightness becomes extremely important.
Disclosure of Invention
The invention provides a driving method and a driving device of a display panel and a display device, which are used for reducing power consumption while ensuring display brightness.
In a first aspect, an embodiment of the present invention provides a method for driving a display panel, including:
when the intensity of the ambient light where the display panel is located is determined to be smaller than a preset light intensity threshold value, determining related parameters of brightness and saturation of each pixel in an image to be displayed;
determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to related parameters of brightness and saturation of each pixel in the image to be displayed;
and controlling the backlight module to emit light with corresponding brightness values by adopting the target backlight value, and determining corresponding pixel compensation gain values to perform brightness compensation on each pixel in the display panel according to the target backlight value.
In a possible implementation manner, the determining related parameters of brightness and saturation of each pixel in the image to be displayed specifically includes:
determining the average brightness and the average saturation of all pixels in the image to be displayed;
determining a first brightness and a first saturation corresponding to the maximum brightness and saturation product;
weighting the average lightness and the first lightness to determine a second lightness;
weighting the first saturation and the average saturation to determine a second saturation;
determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to the related parameters of the lightness and the saturation of each pixel in the image to be displayed, and specifically comprising:
and determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to the second lightness and the second saturation.
In a possible implementation manner, determining, according to the second lightness and the second saturation, a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, specifically includes:
determining, from the second luma, a first pixel compensation gain value that is negatively correlated with the second luma;
determining a maximum pixel compensation gain value which is in negative correlation with the minimum backlight value according to the minimum backlight value which can be adjusted by the backlight module;
and determining the reduction degree of the target backlight value relative to the initial backlight value according to the magnitude relation between the first pixel compensation gain value and the maximum pixel compensation gain value.
In a possible implementation manner, determining a reduction degree of the target backlight value relative to the initial backlight value according to a magnitude relationship between the first pixel compensation gain value and the maximum pixel compensation gain value specifically includes:
when it is determined that the first pixel compensation gain value is greater than or equal to the maximum pixel compensation gain value, the minimum backlight value is taken as the target backlight value.
In a possible implementation manner, determining a corresponding pixel compensation gain value according to the target backlight value to perform brightness compensation on each pixel in the display panel specifically includes:
and when the minimum backlight value is taken as the target backlight value, performing brightness compensation on each pixel in the display panel by adopting the maximum pixel compensation gain value.
In a possible implementation manner, determining a reduction degree of the target backlight value relative to the initial backlight value according to a magnitude relationship between the first pixel compensation gain value and the maximum pixel compensation gain value specifically includes:
determining a first backlight value that is negatively correlated with the first pixel compensation gain value based on the first pixel compensation gain value when it is determined that the first pixel compensation gain value is less than the maximum pixel compensation gain value;
and selecting a second backlight value as the target backlight value within the numerical range of the minimum backlight value and the first backlight value according to the corresponding relation among the first backlight value, the minimum backlight value and the second saturation.
In a possible implementation manner, determining a corresponding pixel compensation gain value according to the target backlight value to perform brightness compensation on each pixel in the display panel specifically includes:
and when the second backlight value is taken as the target backlight value, performing brightness compensation on each pixel in the display panel by adopting a pixel compensation gain value which is in negative correlation with the second backlight value.
In one possible implementation, the method further includes:
and when the intensity of the ambient light where the display panel is located is determined to be greater than or equal to the preset light intensity threshold value, the initial backlight value is adopted to control the backlight module to emit light with a corresponding brightness value, and meanwhile, according to the initial backlight value, a corresponding pixel compensation gain value is determined to perform brightness compensation on each pixel in the display panel.
In a second aspect, an embodiment of the present invention further provides a driving apparatus for a display panel, including: a processor and a memory, the memory storing a computer program, the processor being configured to read the program in the memory and execute the driving method as described above.
In a third aspect, an embodiment of the present invention further provides a display device, including: display panel, backlight module and drive arrangement as above.
The invention has the following beneficial effects:
the embodiment of the invention provides a driving method, a driving device and a display device of a display panel, which are characterized by comprising the steps of firstly, determining related parameters of brightness and saturation of each pixel in an image to be displayed when the intensity of ambient light of the display panel is determined to be less than a preset light intensity threshold value, and then determining a target backlight value, which is less than an initial backlight value and corresponds to the image to be displayed, of a backlight module according to the related parameters of the brightness and the saturation of each pixel in the image to be displayed; and then, controlling the backlight module to emit light with corresponding brightness values by adopting the target backlight value, and determining corresponding pixel compensation gains to perform brightness compensation on each pixel in the display panel according to the target backlight value. That is to say, when the intensity of the ambient light where the display panel is located is less than the preset light intensity threshold, the target backlight value of the backlight module which is less than the initial backlight value is determined according to the related parameters of the lightness and the saturation of each pixel in the image to be displayed, then the backlight module is controlled to emit light with corresponding brightness according to the target backlight value, because the target backlight value is less than the initial backlight value, the power consumption of the backlight module is reduced, meanwhile, the corresponding pixel compensation gain is determined according to the target backlight value, and the brightness compensation is performed on each pixel in the display panel through the pixel compensation gain, so that the display brightness is ensured while the power consumption is reduced.
Drawings
FIG. 1 is a schematic diagram of an RGB module of the related art;
FIG. 2 is a schematic diagram of an RGBW module with the same power consumption and the same rule as the RGB module shown in FIG. 1;
fig. 3 is a flowchart illustrating a method for driving a display panel according to an embodiment of the present invention;
fig. 4 is a flowchart of a method of step S101 in a driving method of a display panel according to an embodiment of the present invention;
fig. 5 is a flowchart of a method of step S205 in a driving method of a display panel according to an embodiment of the present invention;
fig. 6 is a flowchart of a method of step S303 in a driving method of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a driving apparatus of a display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the word "comprise" or "comprises", and the like, in the context of this application, is intended to mean that the elements or items listed before that word, in addition to those listed after that word, do not exclude other elements or items.
Fig. 1 is a schematic structural diagram of an RGB module, fig. 2 is an RGBW module having the same power consumption and the same specification as the RGB module shown in fig. 1, wherein the RGB module and the RGBW module each include a red subpixel 1, a green subpixel 2, and a blue subpixel 3, and the RGBW module further includes a white subpixel 4, and the resolutions, the subpixel opening ratios, and the sizes of the two modules are completely or approximately equal. The maximum luminance of the RGB module shown in fig. 1 is 1A, and the maximum luminance of the RGBW module shown in fig. 2 is 1.5A. If the brightness of the RGBW module is adjusted to be the same as that of the RGB module, the current backlight value of the backlight module corresponding to the RGBW module needs to be adjusted to be 0.667 times of the initial backlight value. If the current display is a pure color 255 picture such as a pure R, pure G, pure B picture, because part of the color sub-pixels in the RGBW module are replaced by white sub-pixels, at this time, if the current backlight value of the backlight module is reduced, although the power consumption is reduced, the display brightness of the RGBW module will be lower than that of the RGB module. Therefore, the prior art cannot give consideration to both display brightness and low power consumption.
In view of this, embodiments of the present invention provide a driving method and a driving apparatus for a display panel, and a display apparatus, which are used to reduce power consumption while ensuring display brightness.
Fig. 3 is a flowchart illustrating a method for driving a display panel according to an embodiment of the present invention, specifically, the method includes:
s101: when the intensity of the ambient light where the display panel is located is determined to be smaller than a preset light intensity threshold value, determining related parameters of brightness and saturation of each pixel in an image to be displayed;
in a specific implementation process, the preset light intensity threshold may be a threshold set according to an actual application environment, and is not limited herein. For example, the light sensor may detect the intensity of the ambient light in which the display panel is located, and when the intensity of the ambient light is less than a preset light intensity threshold, for example, the display panel is located in a dark indoor environment. And when the intensity of the ambient light where the display panel is located is less than a preset light intensity threshold value, determining related parameters of brightness and saturation of each pixel in the image to be displayed. The brightness of each pixel is related to parameters such as average brightness, maximum brightness, average saturation, maximum saturation, and the like of all pixels, which are not limited herein.
S102: determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to related parameters of brightness and saturation of each pixel in the image to be displayed;
in a specific implementation process, a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, is determined according to related parameters of brightness and saturation of each pixel in the image to be displayed. In a specific implementation process, at different times, the related parameters of the lightness and the saturation of each pixel in the image to be displayed may be different, and accordingly, the finally determined target backlight value may also be different, for example, the initial backlight value is 1, the target backlight value is 0.8 at the first time, and the target backlight value is 0.6 at the second time, so that real-time adjustment of the backlight module is realized.
S103: and controlling the backlight module to emit light with corresponding brightness values by adopting the target backlight value, and determining corresponding pixel compensation gains to perform brightness compensation on each pixel in the display panel according to the target backlight value.
In the specific implementation process, because the target backlight value is smaller than the initial backlight value, the power consumption of the backlight module can be reduced when the target backlight value is adopted to control the backlight module to emit light with corresponding brightness values. Meanwhile, according to the target backlight value, the corresponding pixel compensation gain is determined to perform brightness compensation on each pixel in the display panel. Therefore, when the target backlight value is smaller than the initial backlight value, the pixel compensation gain is adjusted according to the target backlight value, so that the brightness compensation is carried out on each pixel in the display panel, and the display brightness is ensured while the low power consumption is ensured.
In the embodiment of the present invention, as shown in fig. 4, step S101: when the intensity of the ambient light where the display panel is located is determined to be smaller than a preset light intensity threshold, determining related parameters of brightness and saturation of each pixel in an image to be displayed, wherein the parameters comprise:
s201: determining the average brightness and the average saturation of all pixels in the image to be displayed;
s202: determining a first brightness and a first saturation corresponding to the maximum brightness and saturation product;
s203: weighting the average lightness and the first lightness to determine a second lightness;
s204: weighting the first saturation and the average saturation to determine a second saturation;
s205: determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to the related parameters of the lightness and the saturation of each pixel in the image to be displayed, and specifically comprising:
and determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to the second lightness and the second saturation.
In a specific implementation process, the order of the step S201 and the step S202 that are not executed may be that the step S201 is executed first, and then the step S202 is executed, or that the step S202 is executed first, and then the step S201 is executed, or that the step S201 and the step S202 are executed simultaneously, which is not limited herein. Fig. 4 is a flowchart illustrating the step S201 is executed first and then the step S202 is executed.
In the specific implementation process, the specific implementation process of step S201 to step S205 is as follows:
firstly, determining the average brightness and the average saturation of all pixels in an image to be displayed; wherein, the brightness calculation formula of any pixel is as follows:
V＝max(R、G、B)
where R denotes a gray-scale value of the red sub-pixel, G denotes a gray-scale value of the green sub-pixel, and B denotes a gray-scale value of the blue sub-pixel, that is, the brightness of each pixel depends on the maximum value among the gray-scale values of the corresponding red, green, and blue sub-pixels.
In the specific implementation process, if the brightness V corresponding to a pixel is 0, and the saturation S is 0, it indicates that the display color corresponding to the pixel is black or white. If the brightness V corresponding to a pixel is greater than 0 and less than or equal to 1, the saturation S may be:
if the resolution of the image to be displayed is M × N, M and N are positive integers, the image coordinate of any pixel in the image to be displayed is (i, j), and the brightness of any pixel is V (i, j), the average brightness of all pixels in the image to be displayed is:
the average saturation S _ mean of all pixels in the image to be displayed is:
then, determining a first brightness and a first saturation corresponding to the maximum product of brightness and saturation, for example, the first brightness is V1 and the first saturation is S1 when the maximum product of brightness and saturation is maximum; then, carrying out weighting processing on the average brightness and the first brightness to determine a second brightness; for example, the second value V2 is: v2 ═ a × V _ mean + b × V1; weighting the first saturation and the average saturation to determine a second saturation; for example, the second saturation S2 is: s2 is a × S _ max + b × S1, where a and b are weight coefficients, and a + b is 1. In a specific implementation process, the weighting factor may be set according to an actual display requirement, which is not limited herein. And then, after the second lightness and the second saturation are determined, determining a target backlight value, which is smaller than the initial backlight value, of the image to be displayed and corresponds to the backlight module. That is to say, the target backlight value of the backlight module corresponding to the image to be displayed is determined according to the second lightness and the second saturation. The second lightness and the second saturation can be the same or different at different times, so that the dynamic adjustment of the target backlight value of the backlight module corresponding to the image to be displayed is realized according to the related parameters of the lightness and the saturation.
In the embodiment of the present invention, as shown in fig. 5, step S205 includes:
s301: determining, from the second luma, a first pixel compensation gain value that is negatively correlated with the second luma;
s302: determining a maximum pixel compensation gain value which is in negative correlation with the minimum backlight value according to the minimum backlight value which can be adjusted by the backlight module;
s303: and determining the reduction degree of the target backlight value relative to the initial backlight value according to the magnitude relation between the first pixel compensation gain value and the maximum pixel compensation gain value.
In the specific implementation process, the specific implementation process of steps S301 to S303 is as follows:
first, according to the second brightness, a first pixel compensation Gain value having a negative correlation with the second brightness is determined, and in a specific implementation, a relationship between the second brightness V2 and the first pixel compensation Gain1 may be:
then, according to the minimum backlight value adjusted by the backlight module, the maximum pixel compensation gain value which is in negative correlation with the minimum backlight value is determined. For example, the minimum backlight value that the backlight module can adjust to is BL _0, and the maximum pixel compensation Gain value Gain _ max that the minimum backlight value BL _0 is negatively correlated may be:
wherein, Gamma is the Gamma characteristic of the display, and is generally 2.2, thereby ensuring that the display of the display panel is more in line with the watching effect of human eyes.
Then, the degree of reduction of the target backlight value with respect to the initial backlight value is determined according to the magnitude relationship between the first pixel compensation gain value and the maximum pixel compensation gain value. In particular implementations, the more the target backlight value is reduced relative to the initial backlight value, and correspondingly, the greater the pixel compensation gain value in order to ensure display brightness. Since the second brightness dynamically changes at different times, the first pixel compensation gain value dynamically changes accordingly. When the minimum backlight value is a constant value, the maximum pixel compensation gain value is also a constant value. Therefore, at different moments, the magnitude relation between the first pixel compensation gain value and the maximum pixel compensation gain value also changes dynamically, and the reduction degree of the target backlight value relative to the initial backlight value is determined according to the magnitude relation between the first pixel compensation gain value and the maximum pixel gain value, so that the dynamic adjustment of the target backlight value of the backlight module is realized.
In the embodiment of the present invention, step S303: determining a reduction degree of the target backlight value relative to the initial backlight value according to a magnitude relationship between the first pixel compensation gain value and the maximum pixel compensation gain value, specifically including: and when the minimum backlight value is taken as the target backlight value, performing brightness compensation on each pixel in the display panel by adopting the maximum pixel compensation gain value. In a specific implementation process, when the minimum backlight value is taken as a target backlight value, brightness compensation is performed on each pixel in the display panel by using the maximum pixel compensation Gain value, for example, the target backlight value is BL-0, and the maximum pixel compensation Gain value is Gain _ max, so that display brightness is ensured while low power consumption is realized. In practical applications, when the saturation of the image to be displayed is low, for example, when a pure white 255 picture is displayed, the target backlight value of the backlight module can be adjusted to the minimum backlight value, so as to reduce power consumption.
In the embodiment of the present invention, as shown in fig. 6, step S303: determining a reduction degree of the target backlight value relative to the initial backlight value according to a magnitude relationship between the first pixel compensation gain value and the maximum pixel compensation gain value, specifically including:
s401: determining a first backlight value that is negatively correlated with the first pixel compensation gain value based on the first pixel compensation gain value when it is determined that the first pixel compensation gain value is less than the maximum pixel compensation gain value;
s402: and selecting a second backlight value as the target backlight value within the numerical range of the minimum backlight value and the first backlight value according to the corresponding relation among the first backlight value, the minimum backlight value and the second saturation.
In the specific implementation process, the specific implementation process from step S401 to step S402 is as follows:
firstly, when a first pixel compensation gain value is determined to be smaller than a maximum pixel compensation gain value, determining a first backlight value which is in negative correlation with the first pixel compensation gain value according to the first pixel compensation gain value; in one implementation, if the first pixel compensation Gain value Gain1 is smaller than the maximum pixel compensation Gain value Gain _ max, the first backlight value BL _1 is determined according to the first pixel compensation Gain value Gain1 determined by the second value V2. In a specific implementation process, the first backlight value BL _1 may be:
and then, according to the corresponding relation among the first backlight value, the minimum backlight value and the second saturation, selecting the second backlight value as a target backlight value within the numerical range of the minimum backlight value and the first backlight value. In a specific implementation process, the correspondence between the first backlight value BL _1, the minimum backlight value BL _0, and the second saturation S2 may be:
BL_2＝(BL_1-BL_0)×S22+ BL _0 (formula ①)
The method can also be as follows:
BL _2 ═ (BL _1-BL _0) × S2+ BL _0 (formula (c))
The method can also be as follows:
BL_2＝(BL_0-BL_1)×(S2-1)2+ BL _1 (formula ③)
In the specific implementation process, when BL _1, BL _0 and S2 are fixed, the determined value of the second backlight value BL _2 is (i) < c. That is, when the related parameters of lightness and saturation are fixed values, the second backlight value determined by adopting a formula (I) is minimum, and the power consumption is minimum; determining a second backlight value by adopting a formula II, and determining power consumption; and the second backlight value determined by the formula III is the largest, and the power consumption is the largest. In practical applications, the second backlight value may be determined by selecting a corresponding relationship according to actual requirements of power consumption and display brightness, which is not limited herein.
In this embodiment of the present invention, in step S103, determining a corresponding pixel compensation gain according to the target backlight value to perform brightness compensation on each pixel in the display panel, specifically including:
and when the second backlight value is taken as the target backlight value, performing brightness compensation on each pixel in the display panel by adopting a pixel compensation gain value which is in negative correlation with the second backlight value.
In the specific implementation process, the second backlight value is located in the numerical range of the minimum backlight value and the first backlight value, when the backlight module emits light with the second backlight value and corresponding brightness values, brightness compensation is performed on each pixel in the display panel by adopting the pixel compensation gain value which is in negative correlation with the second backlight value, and therefore low power consumption is guaranteed and display brightness is guaranteed.
In a specific implementation process, the pixel compensation added value Gain determined according to the second backlight value BL _2 may be:
specifically, the smaller the determined second backlight value BL _2, the larger the pixel compensation Gain value Gain is accordingly used. Therefore, the display effect can be ensured while the power consumption is reduced.
In an embodiment of the present invention, the method further comprises:
and when the intensity of the ambient light where the display panel is located is determined to be greater than or equal to the preset light intensity threshold value, the initial backlight value is adopted to control the backlight module to emit light with a corresponding brightness value, and meanwhile, according to the initial backlight value, a corresponding pixel compensation gain value is determined to perform brightness compensation on each pixel in the display panel.
In the specific implementation process, when it is determined that the intensity of the ambient light where the display panel is located is greater than or equal to the preset light intensity threshold, the backlight module is controlled to emit light with a corresponding brightness value by using the initial backlight value, for example, when the intensity of the ambient light where the display panel is located is greater than or equal to the preset light intensity threshold, the current environment where the display panel is located can be an outdoor environment with stronger light, the backlight module is controlled to emit light with a corresponding brightness value by using the initial backlight value, and it can be ensured that the display panel has better contrast, so that the display effect of the display panel is ensured.
Based on the same inventive concept, as shown in fig. 7, an embodiment of the present invention further provides a driving apparatus of a display panel, including: a processor 10 and a memory 20, the memory 20 storing computer programs, the processor 10 being configured to read the programs in the memory 20 and execute the driving method as described above.
Based on the same inventive concept, as shown in fig. 8, an embodiment of the present invention further provides a display device, where the display device includes a display panel 30, a backlight module 40, and the driving device 50, and the principle of the display device to solve the problem is similar to the driving method of the display panel, so that the implementation of the display device can refer to the implementation of the driving method of the display panel, and repeated details are omitted.
In a specific implementation process, the display device provided in the embodiment of the present invention may be a mobile phone, but of course, the display device provided in the embodiment of the present invention may also be any product or component having a display function, such as a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator. Other essential components of the display device are understood by those skilled in the art, and are not described herein nor should they be construed as limiting the present invention.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A method of driving a display panel, comprising:
when the intensity of the ambient light where the display panel is located is determined to be smaller than a preset light intensity threshold value, determining related parameters of brightness and saturation of each pixel in an image to be displayed;
determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to related parameters of brightness and saturation of each pixel in the image to be displayed;
and controlling the backlight module to emit light with corresponding brightness values by adopting the target backlight value, and determining corresponding pixel compensation gain values to perform brightness compensation on each pixel in the display panel according to the target backlight value.
2. The method according to claim 1, wherein the determining the relevant parameters of brightness and saturation of each pixel in the image to be displayed specifically comprises:
determining the average brightness and the average saturation of all pixels in the image to be displayed;
determining a first brightness and a first saturation corresponding to the maximum brightness and saturation product;
weighting the average lightness and the first lightness to determine a second lightness;
weighting the first saturation and the average saturation to determine a second saturation;
determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to the related parameters of the lightness and the saturation of each pixel in the image to be displayed, and specifically comprising:
and determining a target backlight value of the backlight module corresponding to the image to be displayed, which is smaller than the initial backlight value, according to the second lightness and the second saturation.
3. The method of claim 2, wherein determining, according to the second lightness and the second saturation, a target backlight value of the backlight module corresponding to the image to be displayed that is less than the initial backlight value specifically comprises:
determining, from the second luma, a first pixel compensation gain value that is negatively correlated with the second luma;
determining a maximum pixel compensation gain value which is in negative correlation with the minimum backlight value according to the minimum backlight value which can be adjusted by the backlight module;
and determining the reduction degree of the target backlight value relative to the initial backlight value according to the magnitude relation between the first pixel compensation gain value and the maximum pixel compensation gain value.
4. The method of claim 3, wherein determining a degree of reduction of the target backlight value relative to the initial backlight value based on a magnitude relationship between the first pixel compensation gain value and the maximum pixel compensation gain value comprises:
when it is determined that the first pixel compensation gain value is greater than or equal to the maximum pixel compensation gain value, the minimum backlight value is taken as the target backlight value.
5. The method of claim 4, wherein determining a corresponding pixel compensation gain value for performing brightness compensation on each pixel in the display panel according to the target backlight value comprises:
and when the minimum backlight value is taken as the target backlight value, performing brightness compensation on each pixel in the display panel by adopting the maximum pixel compensation gain value.
6. The method of claim 3, wherein determining a degree of reduction of the target backlight value relative to the initial backlight value based on a magnitude relationship between the first pixel compensation gain value and the maximum pixel compensation gain value comprises:
determining a first backlight value that is negatively correlated with the first pixel compensation gain value based on the first pixel compensation gain value when it is determined that the first pixel compensation gain value is less than the maximum pixel compensation gain value;
and selecting a second backlight value as the target backlight value within the numerical range of the minimum backlight value and the first backlight value according to the corresponding relation among the first backlight value, the minimum backlight value and the second saturation.
7. The method of claim 6, wherein determining a corresponding pixel compensation gain for performing brightness compensation on each pixel in the display panel according to the target backlight value comprises:
and when the second backlight value is taken as the target backlight value, performing brightness compensation on each pixel in the display panel by adopting a pixel compensation gain value which is in negative correlation with the second backlight value.
8. The method of claim 1, wherein the method further comprises:
and when the intensity of the ambient light where the display panel is located is determined to be greater than or equal to the preset light intensity threshold value, the initial backlight value is adopted to control the backlight module to emit light with a corresponding brightness value, and meanwhile, according to the initial backlight value, a corresponding pixel compensation gain value is determined to perform brightness compensation on each pixel in the display panel.
9. A driving apparatus of a display panel, comprising: a processor and a memory, the memory storing a computer program, the processor being configured to read the program in the memory and execute the driving method according to any one of claims 1 to 8.
10. A display device, comprising: a display panel, a backlight module, and a driving apparatus according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534587.XA CN111564133B (en) | 2020-06-12 | 2020-06-12 | Driving method and driving device of display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010534587.XA CN111564133B (en) | 2020-06-12 | 2020-06-12 | Driving method and driving device of display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111564133A true CN111564133A (en) | 2020-08-21 |
| CN111564133B CN111564133B (en) | 2023-01-17 |
Family
ID=72072728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010534587.XA Active CN111564133B (en) | 2020-06-12 | 2020-06-12 | Driving method and driving device of display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111564133B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112037724A (en) * | 2020-08-24 | 2020-12-04 | 青岛信芯微电子科技股份有限公司 | Image display method and device |
| CN112185307A (en) * | 2020-10-13 | 2021-01-05 | 海信视像科技股份有限公司 | Display apparatus and display control method |
| CN112255204A (en) * | 2020-10-21 | 2021-01-22 | 京东方科技集团股份有限公司 | Display panel detection method, display panel and display device |
| WO2023240624A1 (en) * | 2022-06-17 | 2023-12-21 | 北京小米移动软件有限公司 | Brightness adjustment method, apparatus and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050110740A1 (en) * | 2003-11-25 | 2005-05-26 | Linzmeier Daniel A. | Method and apparatus for image optimization in backlit displays |
| JP2009109876A (en) * | 2007-10-31 | 2009-05-21 | Panasonic Corp | Liquid crystal display device, liquid crystal display method, and program |
| CN103531174A (en) * | 2013-10-29 | 2014-01-22 | 京东方科技集团股份有限公司 | Brightness adjusting device and method |
| US20150009192A1 (en) * | 2013-07-05 | 2015-01-08 | Novatek Microelectronics Corp. | Image display apparatus and image optimization method thereof |
| CN106128405A (en) * | 2016-09-06 | 2016-11-16 | 武汉华星光电技术有限公司 | A kind of system and method for the pure color picture brightness adjusting RGBW panel |
| CN106782368A (en) * | 2016-12-20 | 2017-05-31 | 武汉华星光电技术有限公司 | The driving method and drive device of a kind of display panel |
| US20200143770A1 (en) * | 2018-11-01 | 2020-05-07 | Samsung Electronics Co., Ltd. | Image display device and method of operating the same |
-
2020
- 2020-06-12 CN CN202010534587.XA patent/CN111564133B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050110740A1 (en) * | 2003-11-25 | 2005-05-26 | Linzmeier Daniel A. | Method and apparatus for image optimization in backlit displays |
| JP2009109876A (en) * | 2007-10-31 | 2009-05-21 | Panasonic Corp | Liquid crystal display device, liquid crystal display method, and program |
| US20150009192A1 (en) * | 2013-07-05 | 2015-01-08 | Novatek Microelectronics Corp. | Image display apparatus and image optimization method thereof |
| CN103531174A (en) * | 2013-10-29 | 2014-01-22 | 京东方科技集团股份有限公司 | Brightness adjusting device and method |
| CN106128405A (en) * | 2016-09-06 | 2016-11-16 | 武汉华星光电技术有限公司 | A kind of system and method for the pure color picture brightness adjusting RGBW panel |
| CN106782368A (en) * | 2016-12-20 | 2017-05-31 | 武汉华星光电技术有限公司 | The driving method and drive device of a kind of display panel |
| US20200143770A1 (en) * | 2018-11-01 | 2020-05-07 | Samsung Electronics Co., Ltd. | Image display device and method of operating the same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112037724A (en) * | 2020-08-24 | 2020-12-04 | 青岛信芯微电子科技股份有限公司 | Image display method and device |
| CN112037724B (en) * | 2020-08-24 | 2022-07-15 | 青岛信芯微电子科技股份有限公司 | Image display method and device |
| CN112185307A (en) * | 2020-10-13 | 2021-01-05 | 海信视像科技股份有限公司 | Display apparatus and display control method |
| CN112185307B (en) * | 2020-10-13 | 2022-03-01 | 海信视像科技股份有限公司 | Display apparatus and display control method |
| CN112255204A (en) * | 2020-10-21 | 2021-01-22 | 京东方科技集团股份有限公司 | Display panel detection method, display panel and display device |
| CN112255204B (en) * | 2020-10-21 | 2024-03-15 | 京东方科技集团股份有限公司 | Display panel detection method, display panel and display device |
| WO2023240624A1 (en) * | 2022-06-17 | 2023-12-21 | 北京小米移动软件有限公司 | Brightness adjustment method, apparatus and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111564133B (en) | 2023-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111564133B (en) | Driving method and driving device of display panel and display device | |
| CN110444152B (en) | Optical compensation method and device, display method and storage medium | |
| KR102194571B1 (en) | Method of data conversion and data converter | |
| US8982163B2 (en) | Techniques for dynamically regulating display images for ambient viewing conditions | |
| US10825408B2 (en) | Display driving method, device and apparatus | |
| US10217392B2 (en) | Transparent display device and method for controlling same | |
| US8743152B2 (en) | Display apparatus, method of driving display apparatus, drive-use integrated circuit, driving method employed by drive-use integrated circuit, and signal processing method | |
| US20160365016A1 (en) | Converting system and converting method of three-color data to four-color data | |
| CN108962185B (en) | Method for reducing display image brightness, device thereof and display device | |
| US10553165B2 (en) | Method and apparatus for detecting high-frequency component in image | |
| WO2020228580A1 (en) | Display method, display device, and computer storage medium | |
| US9324283B2 (en) | Display device, driving method of display device, and electronic apparatus | |
| US10529275B2 (en) | Method and device for luminance adjustment, display device, and computer-readable storage medium | |
| CN101826282B (en) | Liquid crystal display device and processing method of digital image signal | |
| CN108962167B (en) | Data processing method and device, driving method, display panel and storage medium | |
| US9484000B2 (en) | Signal conversion method for display image | |
| US10204568B2 (en) | Driving methods and driving devices of display panels | |
| US10290282B2 (en) | Display apparatus and brightness adjustment method thereof | |
| US20120154451A1 (en) | Backlight adjustment device of a display and method thereof | |
| CN111277810A (en) | Image processing method, image processing module and display device | |
| US20180330677A1 (en) | Driving methods and driving devices of display panels | |
| CN107680541A (en) | A kind of method and device for reducing liquid crystal display power consumption | |
| US9311886B2 (en) | Display device including signal processing unit that converts an input signal for an input HSV color space, electronic apparatus including the display device, and drive method for the display device | |
| US10565943B2 (en) | Device and method for reducing power consumption of liquid crystal display, and liquid crystal display | |
| CN116229892A (en) | Display driving method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |