CN112863424A - Display screen brightness adjusting method and device and electronic equipment - Google Patents

Display screen brightness adjusting method and device and electronic equipment Download PDF

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Publication number
CN112863424A
CN112863424A CN202110266744.8A CN202110266744A CN112863424A CN 112863424 A CN112863424 A CN 112863424A CN 202110266744 A CN202110266744 A CN 202110266744A CN 112863424 A CN112863424 A CN 112863424A
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brightness
target
display screen
display
gray
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车喜龙
王涛涛
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Chip Wealth Technology Ltd
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Chip Wealth Technology Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The application provides a method and a device for adjusting brightness of a display screen and electronic equipment, and relates to the field of brightness adjustment. According to the method for adjusting the brightness of the display screen, when the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, the target display brightness can be determined based on the target brightness level, the pre-stored lower limit value and upper limit value of the display brightness of the display screen of the terminal device, and the pre-stored second gray scale of the display screen of the terminal device. When the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, the brightness adjustment deviation is small because the target brightness level and the target display brightness still form a linear relation, and meanwhile, color spots do not appear on the display screen.

Description

Display screen brightness adjusting method and device and electronic equipment
Technical Field
The application relates to the field of brightness adjustment, in particular to a method and a device for adjusting brightness of a display screen and electronic equipment.
Background
When a user browses information by using the terminal equipment, the browsed information is displayed on a display screen of the terminal equipment. If the user feels that the brightness of the display screen is too high or too low, the experience of the user for browsing information is affected. Therefore, the user has a demand for brightness adjustment of the display screen. The specific adjustment mode is that a user can drag a brightness bar on a display screen of a system terminal device of the terminal device, and then the terminal device responds to the operation of the user and adjusts the brightness of the display screen based on the dragging progress of the corresponding brightness bar.
At present, when the brightness level corresponding to the brightness of the display screen is greater than a certain preset value, the brightness adjusting mode is as follows: the current/voltage is changed to increase/decrease the circuit power so as to achieve the effect of brightness adjustment, and the defects are as follows: by changing the current/voltage size for dimming, the display brightness and the progress of the brightness bar show a curve relationship. When the dimming level is higher, the difference between the adjusted brightness of the display screen of the terminal device and the brightness which is actually required to be adjusted and corresponds to the dragging progress of the brightness bar is larger. When it is desired to set the specified luminance, only the approximate luminance can be obtained in practice, resulting in a large deviation in the luminance adjustment. Therefore, the adoption of such a brightness adjustment method causes a large deviation in brightness adjustment, and does not achieve an ideal effect.
Disclosure of Invention
The application aims to provide a method for adjusting the brightness of a display screen, which is used for solving the technical problem of large brightness adjustment deviation.
In order to achieve the above purpose, the technical solutions provided by the present application are as follows:
in a first aspect, the present application provides a method for adjusting brightness of a display screen, including:
responding to the adjustment operation of a user on a brightness bar on a display screen of the terminal equipment, and determining a target brightness level;
if the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, determining target display brightness based on the target brightness level, the pre-stored lower limit value and upper limit value of the display brightness of the display screen of the terminal device, and the pre-stored second gray scale of the display screen of the terminal device, wherein the target brightness level and the target display brightness are in a linear relation, and the target brightness level and the target display brightness are positively correlated;
and adjusting the voltage/current supplied to the display screen so that the display screen reaches the target display brightness.
According to the method for adjusting the brightness of the display screen, when the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, the target brightness level and the target display brightness are in a linear relation, namely, the progress length of the brightness bar and the target brightness are in a linear function relation. Thus, the magnitude of the target display luminance may be uniformly changed as the progress of the luminance bar is dragged. Thus, the luminance adjustment deviation can be reduced.
Optionally, the linear relationship is B ═ Gray2 K*DBV*(Bmax-Bmin)+BminWherein B is a target display luminance, DBV (data Brightness value) is a target luminance level, and B isminIs the minimum value of the display brightness of the display screen of the terminal device, BmaxIs the maximum value of the display brightness, Gray, of the display screen of the terminal device2And K is a constant, and is the second gray scale of the display screen of the terminal equipment.
Optionally, the process of obtaining the linear relationship is: determining a second gray scale corresponding to the lower limit value; converting the second Gray scale into the first Gray scale, wherein the first Gray scale and the second Gray scale satisfy Gray1＝Gray2DBV1/K100% of the total weight; based on the formula B ═ Gray1 K*(Bmax-Bmin)+BminAnd determining the linear relation.
Optionally, the method further comprises: and if the target brightness level is lower than or equal to the lower limit value of the set first adjustable brightness interval, determining the target display brightness based on a preset corresponding relation, wherein the corresponding relation is the corresponding relation between the target brightness level and the target display brightness, and the target brightness level is positively correlated with the target display brightness.
According to the method for adjusting the brightness of the display screen, when the target brightness level is lower than or equal to the lower limit value of the set first adjustable brightness interval, the target display brightness is determined based on the corresponding relation between the preset target brightness level and the target display brightness, so that the target brightness level and the target display brightness still keep a linear relation, meanwhile, gray scale combination is avoided, and color spots of the display screen can be prevented.
In a second aspect, the present application provides a device for adjusting brightness of a display screen, including:
the information determining unit is used for responding to the adjustment operation of a user on a brightness bar on a display screen of the terminal equipment and determining a target brightness level;
the information determining unit is further configured to determine a target display brightness based on the target brightness level, a pre-stored lower limit value and an upper limit value of the display brightness of the display screen of the terminal device, and a pre-stored second gray scale of the display screen of the terminal device if the target brightness level is higher than a set lower limit value of a first adjustable brightness interval, where the target brightness level and the target display brightness are in a linear relationship, and the target brightness level and the target display brightness are positively correlated;
and the interface lighting unit is used for adjusting the voltage/current supplied to the display screen so as to enable the display screen to reach the target display brightness.
Optionally, the linear relationship is:
B＝Gray2 K*DBV*(Bmax-Bmin)+Bminwhere B is the target display brightness, DBV is the target brightness level, BminIs the minimum value of the display brightness of the display screen of the terminal device, BmaxIs the maximum value of the display brightness, Gray, of the display screen of the terminal device2And K is a constant, and is the second gray scale of the display screen of the terminal equipment.
Optionally, the information determining unit is further configured to determine a second gray scale corresponding to the lower limit value;
an information conversion unit for converting the second Gray scale into a first Gray scale, wherein the first Gray scale and the second Gray scale satisfy Gray1＝Gray2DBV1/K*100％；
The information determination unit is also used for determining the information based on the formula B ═ Gray1 K*(Bmax-Bmin)+BminAnd determining a linear relation.
Optionally, the information display unit is further configured to determine the target display brightness based on a preset corresponding relationship if the target brightness level is lower than or equal to the lower limit of the set first adjustable brightness interval, where the corresponding relationship is the corresponding relationship between the target brightness level and the target display brightness, and the target brightness level is positively correlated with the target display brightness.
In a third aspect, an embodiment of the present application provides an electronic device, including: a processor, a memory, and a bus; the processor and the memory complete mutual communication through the bus; the memory stores program instructions executable by the processor, and the processor calls the program instructions to perform the method of adjusting the brightness of a display screen as in the first aspect.
In a fourth aspect, an embodiment of the present application provides a readable storage medium, where the readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the method for adjusting brightness of a display screen according to the first aspect.
Compared with the prior art, according to the method for adjusting the brightness of the display screen, when the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, the target display brightness may be determined based on the target brightness level, the pre-stored lower limit value and upper limit value of the display brightness of the display screen of the terminal device, and the pre-stored second gray scale of the display screen of the terminal device. When the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, the target brightness level and the target display brightness still form a linear relation, so that the brightness adjustment deviation is small, and meanwhile, color spots do not appear on the display screen.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a flowchart illustrating steps of a method for adjusting brightness of a display screen according to an embodiment of the present disclosure;
fig. 2 shows that the brightness adjustment factors provided by the embodiments of the present application are Gamma respectively1And Gamma2Representing display brightness and gray scaleA schematic diagram of the mapping relationship of (a);
FIG. 3 is a diagram illustrating a mapping relationship between actual brightness levels and intermediate variables according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of a mapping relationship between a first adjustable luminance interval and a second adjustable luminance interval according to an embodiment of the present disclosure;
fig. 5 is a block diagram of a structure of a device for adjusting brightness of a display screen according to an embodiment of the present disclosure;
fig. 6 is a block diagram of an electronic device for executing a method according to the present application provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
The embodiment of the application provides a method for adjusting the brightness of a display screen, which is applied to terminal equipment. The terminal device can be an electronic device such as a smart phone and a tablet computer. The terminal equipment is provided with a display screen (such as a WeChat chat interface and a web browsing interface). When a user has a requirement for adjusting the brightness of the display screen of the terminal device, an up-sliding operation, a down-sliding operation, a touch operation or the like can be input in a target area of the application display screen, and the interface is switched to the brightness adjustment interface. And a brightness bar is arranged on the brightness adjusting interface, and a user can drag the progress of the brightness bar to adjust the target brightness level, and the voltage/current supplied to the display screen is adjusted to enable the display screen to reach the target display brightness. As shown in fig. 1, the method for adjusting the brightness of the display screen may specifically include the following steps S101 to S105:
s101: and determining the target brightness level in response to the adjustment operation of the user on the brightness bar on the display screen of the terminal equipment.
As will be appreciated, the target brightness level is used to indicate the brightness level of the display screen. For example, when the user is browsing information using the terminal device, if the brightness of the display screen is considered too low (the user feels that browsing is inconvenient), the brightness bar may be dragged upwards, and the target brightness level may be determined based on the progress of the brightness bar. Assume that the set luminance level interval is 0 to 255 and the total length of the luminance bars is 50 mm. Before dragging the brightness bar upwards, the progress of the brightness bar is 10mm, and the corresponding target brightness level is 51; after dragging the brightness bar upwards, the progress of the brightness bar is 35mm, corresponding to a target brightness level of 178.
S102: and judging whether the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, if so, executing S103, and optionally, if not, executing S104. Specifically, the lower limit value of the first adjustable brightness interval may be a brightness level corresponding to b times of the maximum display brightness of the display screen, b is a percentage greater than 0 and less than 1, and a specific value thereof is set according to an actual requirement, for example, b may be 30%, 50%, or the like.
Wherein the first adjustable brightness interval may be represented as (DBV)2，DBV1). Understandably, DBV2Is the lower limit value of the first adjustable brightness interval, DBV1Is the upper limit value of the first adjustable brightness interval.
If the brightness level corresponding to the brightness of the display screen is lower than or equal to the lower limit value DBV of the first adjustable brightness interval2During the process, the gray scale combination phenomenon can occur when the brightness of the display screen is adjusted by changing the current/voltage according to the linear relation between the target brightness level and the target display brightness, and then the color spots occur on the display screen. Therefore, it is necessary to determine whether the target brightness level is higher than the lower limit value of the set first adjustable brightness interval.
S103: and determining the target display brightness based on the target brightness level, the lower limit value and the upper limit value of the display brightness of the display screen of the terminal equipment and the second gray scale of the display screen of the terminal equipment.
The target brightness level and the target display brightness are in a linear relation, and the target brightness level and the target display brightness are in positive correlation. Specifically, the linear relationship may be: b ═ Gray2 K*DBV*(Bmax-Bmin)+Bmin. Where B is the target display brightness, DBV is the target brightness level, BminA lower limit value for the display brightness of the display screen of the terminal device, BmaxIs the upper limit value, Gray, of the display brightness of the display screen of the terminal equipment2For display of terminal equipmentThe second gray scale of the screen, K being a constant, K may take on values of 2.2, 2.1, etc., for example.
It can be understood that when the target brightness level and the target brightness have a linear relationship, the target display brightness may change uniformly with the dragging of the progress of the brightness bar. Namely, the progress length of the brightness bar is in a linear function relation with the target brightness. Specifically, assuming that the total length of the luminance bar is 50mm and the luminance range is 0nit to 1000nit, the target luminance of the change corresponding to each progress bar sliding 1mm is 20 nit.
After S103 is executed, S105 is directly executed.
S104: and determining the target display brightness based on the preset corresponding relation.
The corresponding relation is the corresponding relation between the target brightness level and the target display brightness, and the target brightness level is positively correlated with the target display brightness.
S105: and adjusting the voltage/current supplied to the display screen so that the display screen reaches the target display brightness.
Wherein voltage/current refers to voltage or current. Assuming that the brightness level interval is 0 to 255 and the target brightness level is 150, the terminal device generates a driving voltage corresponding to the target brightness level of 150, and loads the driving voltage on the display screen of the terminal device, and further, based on the adjustment of the voltage/current supplied to the display screen, the display screen reaches the target display brightness, and the display brightness is 58.8% of the maximum brightness of the display screen.
The following describes in detail how the linear relationship between the target luminance level and the target display luminance is obtained. The method specifically comprises the following steps:
s201: and determining a second gray scale corresponding to the lower limit value of the display brightness of the display screen of the terminal equipment.
Specifically, the lower limit value DBV of the first adjustable brightness interval is found according to the set lower limit value-brightness adjustment factor table2Corresponding brightness adjusting factor Gamma2And when the holding brightness adjustment factor Gamma of the terminal equipment2Display brightness B of display screen when gray scale is maximum when unchanged2Display, displayBrightness B2That is, the maximum brightness, and the brightness level corresponding to the maximum brightness is the lower limit value DBV of the display brightness of the display screen of the terminal device2. According to the display brightness B2And the brightness adjusting factor of the terminal equipment is Gamma1Time Gray level to brightness mapping relation B ═ GrayK*(Bmax1-Bmin1)+Bmin1And finding out the second gray scale. Specifically, B is defined as B2Put into the above formula, due to the maximum brightness Bmax1Minimum brightness Bmin1And K is a known value, a second Gray level Gray is obtained2。
Next, how to determine the second gray scale is exemplified. As shown in fig. 2, fig. 2 includes when the brightness adjustment factor of the terminal device is Gamma2Time-of-day display luminance and Gray level mapping relationship (B ═ Gray)K*(Bmax1-Bmin1)+Bmin1) The mapping relationship between the display brightness and the gray scale is shown as curve 1 in FIG. 2, and FIG. 2 further includes when the brightness adjustment factor of the terminal device is Gamma2Time-of-day display luminance and Gray level mapping relationship (B ═ Gray)K*(Bmax2-Bmin2)+Bmin2) The mapping relationship between the display brightness and the gray scale is shown as curve 2 in FIG. 2.
When the display brightness range is 0-500, the gray scale range is 0-255, and the brightness adjustment factor is Gamma2Then, the maximum display brightness corresponding to the gray scale is 300 according to the curve 1. Then, in curve 1, the second gray scale corresponding to the display brightness of 300 (i.e., the maximum display brightness when the brightness adjustment factor is Gamma 2) is determined to be 204.
It should be noted that the display content and brightness of the display screen of the terminal device are based on red, green, and blue rendering. The red, green and blue are respectively corresponding to a brightness adjusting factor. The brightness adjusting factor Gamma1Brightness regulating factor Gamma2The brightness adjustment factors corresponding to red, green and blue can be obtained through weighting calculation. In addition, since the contribution of the brightness adjustment factor corresponding to green to the display brightness is the largest, the brightness adjustment factor Gamma is the same as the brightness adjustment factor Gamma1Brightness regulating factor Gamma2The brightness adjustment factor corresponding to green can also be directly adopted.
S202: the second gray scale is converted into the first gray scale.
Wherein the first and second Gray levels satisfy Gray1＝Gray2DBV1/K100% of, wherein, Gray1Is the first gray scale.
The conversion process is as follows: according to equation M1＝(Gray2) N, determining the intermediate variable M1Wherein n is a preset display screen gray scale level. Based on the query of the intermediate variable M from a preset intermediate variable-brightness level relation table1Corresponding actual brightness level DBVx. Fig. 3 includes a discrete point diagram showing a mapping relationship between the actual luminance level and the intermediate variable. In the discrete point diagram, the mapping relation between the actual brightness level and the intermediate variable is as follows: m1＝DBV x 1/k100%. As shown in FIG. 3, when the intermediate variable is M1Then, from the above-mentioned discrete point diagram, an intermediate variable M can be obtained1Corresponding to actual brightness level DBVx。
Furthermore, the actual brightness level DBV can be usedxA first adjustable brightness interval (DBV)2，DBV1) Mapped to a second adjustable brightness interval (DBV)X，DBV1)。
After the mapping is completed, a first adjustable brightness interval (DBV)2，DBV1) Value of (1) and a second adjustable brightness interval (DBV)X，DBV1) The values in (a) are in a proportional relationship: DBVy＝(DBVm-DBV2)*(DBV1-DBVx)/(DBV1-DBV2)+DBVxWherein, DBVyIs the second adjustable brightness interval (DBV)X，DBV1) Any one value of (1), DBVmIs a first adjustable brightness interval (DBV)2，DBV1) Any value of (a).
Further, the target brightness level DBV is determined for each adjustment operation of the brightness bar by the usermCan be calculated by the above formula DBVy＝(DBVm-DBV2)*(DBV1-DBVx)/(DBV1-DBV2)+DBVxTo obtain a target brightness level DBVmCorresponding actual brightness level DBVy. As shown in fig. 4, when the first adjustable-luminance section is 0.5 to 1 and the second adjustable-luminance section is 0.5 to 1, when the target luminance level DBVmWhen it is 0.77, the value is represented by the formula DBVy＝(DBVm-DBV2)*(DBV1-DBVx)/(DBV1-DBV2)+DBVxCan obtain corresponding actual brightness level DBVyIs 0.77.
Then, the actual brightness level DBV can be found from the preset brightness level-intermediate variable relation tableyCorresponding intermediate variable M2. Wherein, in the relationship table of brightness grade and intermediate variable, the intermediate variable M2And brightness level DBVyThe relationship is as follows: DBVy＝M 2 k100%, and further, M can be obtained2＝DBV y 1/k100%. Due to M2＝DBV y 1/k100%, then can be according to the formula Gray1＝Gray2*DBV y 1/k100% converts the second gray scale to the first gray scale.
In order to reduce the resource consumption and cost of the terminal device, the relationship table between the intermediate variable and the brightness level and the relationship table between the brightness level and the intermediate variable may be pre-fixed in the memory of the terminal device.
The process of acquiring the above-described second gray scale will be described below by way of specific examples:
assuming that in a terminal device of a certain model, the intermediate variable M has a value range of 0 to 1023, a brightness level interval of 0 to 255, and a first adjustable brightness interval (127, 255), the upper limit value DBV of the first adjustable brightness interval is2255, the lower limit value DBV of the first adjustable brightness interval2127. The process of acquiring the second gray scale includes:
step 1: according to the lower limit value DBV of the first adjustable brightness interval2Value 127 of, pre-stored luminance, etcDetermining the brightness adjustment factor Gamma according to the relation between the level and the brightness adjustment factor2647. At Gamma2647, by Gamma2647 when finding out the gray scale equal to 255 (maximum gray scale), the corresponding display brightness B of the display screen2。
Then, searching an upper limit value DBV of the first adjustable brightness interval1Is a brightness adjustment factor Gamma corresponding to 2551777. According to Gamma1777, inquiring the second Gray level Gray2Is 185. For the convenience of subsequent calculation, Gray can be obtained according to the formula3185 x 1023, a third Gray level Gray is determined3. 1023 are conversion variables.
Step 2: when n is 255, M can be calculated according to the formula1＝(Gray3) N, obtaining a third Gray level Gray3Corresponding intermediate variable M1(185 x 1023)/255 ═ 742. Then, M is found in the relation table of intermediate variable-brightness level1Linear brightness level DBV corresponding to 742xObtaining DBVx126; then, when the target brightness level DBVm127, the upper limit value DBV of the first adjustable brightness interval2255, lower limit value DBV of first adjustable brightness interval2127, DBV can be calculated according to the formulay＝(DBVm-DBV2)*(DBV1-DBVx)/(DBV1-DBV2)+DBVxDetermining the actual brightness level DBVy＝126。
Finally, according to the linear brightness level DBVy126, a preset brightness level relation-intermediate variable relation table, and determining a linear brightness level DBVyIntermediate variable M corresponding to 1262Obtaining M2908. Furthermore, it can be according to Gray1＝Gray2*M2Can obtain the first Gray scale Gray1The corresponding second gray scale. In particular, the second Gray level Gray2＝255*(908/1023)＝226。
S203, based on the formula B ═ Gray1 K*(Bmax-Bmin)+BminAnd determining a linear relation.
The embodiment of the present application further provides a device 500 for adjusting the brightness of a display screen, and it should be noted that the specific implementation method and the beneficial effects of the device for adjusting the brightness of a display screen are the same as those of the above implementation, and reference may be made to the above description. As shown in fig. 5, the following units may be specifically included:
an information determining unit 501, configured to determine a target brightness level in response to an adjustment operation of a brightness bar on a display screen of a terminal device by a user.
The information determining unit 501 is further configured to determine a target display brightness based on the target brightness level, a pre-stored lower limit and an upper limit of a display brightness of the display screen of the terminal device, and a pre-stored second gray scale of the display screen of the terminal device, if the target brightness level is higher than a set lower limit of the first adjustable brightness interval, where the target brightness level and the target display brightness are in a linear relationship, and the target brightness level and the target display brightness are positively correlated.
An interface lighting unit 502, configured to adjust a voltage/current supplied to the display screen so that the display screen reaches the target display brightness.
The linear relation is that B is Gray2 K*DBV*(Bmax-Bmin)+BminWhere B is the target display brightness, DBV is the target brightness level, BminIs the minimum value of the display brightness of the display screen of the terminal device, BmaxIs the maximum value of the display brightness, Gray, of the display screen of the terminal device2And K is a constant, and is the second gray scale of the display screen of the terminal equipment.
The information determining unit 501 is further configured to determine a second gray scale corresponding to the lower limit value.
Further comprising: an information converting unit 503 for converting the second Gray scale into the first Gray scale, wherein the first Gray scale and the second Gray scale satisfy Gray1＝Gray2DBV1/K*100％。
The information determining unit 501 is further configured to determine the information based on the formula B ═ Gray1 K*(Bmax-Bmin)+BminAnd determining a linear relation.
The information determining unit 501 is further configured to determine the target display brightness based on a preset corresponding relationship if the target brightness level is lower than or equal to the lower limit of the set first adjustable brightness interval, where the target brightness level is positively correlated with the target display brightness.
Referring to fig. 6, fig. 6 is a block diagram of an electronic device according to an embodiment of the present disclosure, where the electronic device 600 includes: at least one processor 601, at least one communication interface 602, at least one memory 603, and at least one communication bus 604. Wherein the communication bus 604 is used for implementing direct connection communication of these components, the communication interface 602 is used for communicating signaling or data with other node devices, and the memory 603 stores machine-readable instructions executable by the processor 601. When the electronic device 600 is running, the processor 601 communicates with the memory 603 via the communication bus 604, and the machine-readable instructions when called by the processor 601 execute the method for adjusting the brightness of the display screen.
The processor 601 may be an integrated circuit chip having signal processing capabilities. The Processor 601 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. Which may implement or perform the various methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The Memory 603 may include, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Read Only Memory (EPROM), an electrically Erasable Read Only Memory (EEPROM), and the like.
It will be appreciated that the configuration shown in FIG. 6 is merely illustrative and that electronic device 600 may include more or fewer components than shown in FIG. 6 or have a different configuration than shown in FIG. 6. The components shown in fig. 6 may be implemented in hardware, software, or a combination thereof. In the embodiment of the present application, the electronic device 600 may be, but is not limited to, a desktop, a notebook, a smart phone, and other physical devices.
The present application further provides a computer program product, including a computer program stored on a readable storage medium, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer is capable of executing the steps of the method for adjusting brightness of a display screen in the foregoing embodiments, for example, the method includes:
responding to the adjustment operation of a user on a brightness bar on a display screen of the terminal equipment, and determining a target brightness level; if the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, determining the target display brightness based on a linear relation among the target brightness level, the pre-stored lower limit value and upper limit value of the display brightness of the display screen of the terminal device and the pre-stored second gray scale of the display screen of the terminal device, wherein the target brightness level and the target display brightness are in a linear relation, and the target brightness level and the target display brightness are in positive correlation in the linear relation; and adjusting the voltage/current supplied to the display screen so that the display screen reaches the target display brightness.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A method for adjusting the brightness of a display screen is characterized by comprising the following steps:
responding to the adjustment operation of a user on a brightness bar on a display screen of the terminal equipment, and determining a target brightness level;
if the target brightness level is higher than the lower limit value of the set first adjustable brightness interval, determining target display brightness based on the target brightness level, the pre-stored lower limit value and upper limit value of the display brightness of the display screen of the terminal device, and the pre-stored second gray scale of the display screen of the terminal device, wherein the target brightness level and the target display brightness are in a linear relationship, and the target brightness level and the target display brightness are positively correlated;
and adjusting the voltage/current supplied to the display screen so that the display screen reaches the target display brightness.
2. The method of claim 1, wherein the linear relationship is:
B＝Gray2 K*DBV*(Bmax-Bmin)+Bminwherein B is the target display brightness, DBV is the target brightness level, BminIs the lower limit value of the display brightness of the display screen of the terminal equipment, BmaxIs the upper limit value, Gray, of the display brightness of the display screen of the terminal equipment2And K is a constant, and is a second gray scale of the display screen of the terminal equipment.
3. The method of claim 2, wherein the linear relationship is obtained by:
determining a second gray scale corresponding to the lower limit value;
converting the second Gray scale into a first Gray scale, wherein the first Gray scale and the second Gray scale satisfy Gray1＝Gray2DBV1/K*100％；
Based on the formula B ═ Gray1 K*(Bmax-Bmin)+BminDetermining said linear relationship, wherein Gray1Is the first gray scale.
4. The method of claim 1, further comprising:
and if the target brightness level is lower than or equal to the lower limit value of the set first adjustable brightness interval, determining target display brightness based on a preset corresponding relation, wherein the target brightness level is positively correlated with the target display brightness.
5. A device for adjusting the brightness of a display screen, comprising:
the information determining unit is used for responding to the adjustment operation of a user on a brightness bar on a display screen of the terminal equipment and determining a target brightness level;
the information determining unit is further configured to determine a target display brightness based on the target brightness level, a pre-stored lower limit and an upper limit of a display brightness of a display screen of the terminal device, and a pre-stored second gray scale of the display screen of the terminal device if the target brightness level is higher than a set lower limit of a first adjustable brightness interval, where the target brightness level and the target display brightness are in a linear relationship and the target brightness level and the target display brightness are positively correlated;
and the interface lighting unit is used for adjusting the voltage/current supplied to the display screen so as to enable the display screen to reach the target display brightness.
6. The apparatus of claim 5, wherein the linear relationship is:
B＝Gray2 K*DBV*(Bmax-Bmin)+Bminwherein B is the target display brightness, DBV is the target brightness level, BminIs the minimum value of the display brightness of the display screen of the terminal equipment, BmaxIs the maximum value of the display brightness, Gray, of the display screen of the terminal device2And K is a constant, and is a second gray scale of the display screen of the terminal equipment.
7. The apparatus of claim 6,
the information determining unit is further used for determining a second gray scale corresponding to the lower limit value;
the device, still include: an information conversion unit for converting the second Gray scale into a first Gray scale, wherein the first Gray scale and the second Gray scale satisfy Gray1＝Gray2DBV1/K*100％；
The information determination unit is further used for determining the information based on the formula B ═ Gray1 K*(Bmax-Bmin)+BminAnd determining the linear relation.
8. The apparatus of claim 5,
the information determining unit is further configured to determine target display brightness based on a preset corresponding relationship if the target brightness level is lower than or equal to a lower limit value of a set first adjustable brightness interval, where the target brightness level is positively correlated with the target display brightness.
9. An electronic device comprising a processor and a memory, the memory storing computer readable instructions that, when executed by the processor, perform the method of any of claims 1-4.
10. A readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-4.
CN202110266744.8A 2021-03-11 2021-03-11 Display screen brightness adjusting method and device and electronic equipment Pending CN112863424A (en)

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