CN114495863A - Screen brightness control method, device, equipment, storage medium and program product - Google Patents

Screen brightness control method, device, equipment, storage medium and program product Download PDF

Info

Publication number
CN114495863A
CN114495863A CN202210216335.1A CN202210216335A CN114495863A CN 114495863 A CN114495863 A CN 114495863A CN 202210216335 A CN202210216335 A CN 202210216335A CN 114495863 A CN114495863 A CN 114495863A
Authority
CN
China
Prior art keywords
parameter
backlight
gamma
brightness
screen 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
Application number
CN202210216335.1A
Other languages
Chinese (zh)
Other versions
CN114495863B (en
Inventor
刘旺龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202210216335.1A priority Critical patent/CN114495863B/en
Publication of CN114495863A publication Critical patent/CN114495863A/en
Application granted granted Critical
Publication of CN114495863B publication Critical patent/CN114495863B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
    • 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
    • G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
    • G09G3/035—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays for flexible display surfaces
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

The embodiment of the application discloses a method, a device, equipment, a storage medium and a program product for controlling screen brightness, and belongs to the technical field of electronic equipment. The method comprises the following steps: acquiring backlight parameters of a display screen to be controlled; under the condition that the backlight parameter is not larger than a first preset backlight parameter, acquiring a first Gamma parameter of the display screen under the backlight parameter, wherein the first Gamma parameter comprises brightness adjusting parameters corresponding to a plurality of first gray scales; determining a second Gamma parameter based on the backlight parameter and the first Gamma parameter, wherein the screen brightness of the display screen after the second Gamma parameter is adjusted is smaller than the screen brightness of the display screen after the first Gamma parameter is adjusted; and controlling the screen brightness of the display screen based on the second Gamma parameter. The display screen is adjusted through the second Gamma parameter, so that the requirement of minimum screen brightness can be met, and the accuracy of the screen brightness control method is improved.

Description

Screen brightness control method, device, equipment, storage medium and program product
Technical Field
The embodiment of the application relates to the technical field of electronic equipment, in particular to a method, a device, equipment, a storage medium and a program product for controlling screen brightness.
Background
At present, the demand of users for the display effect of the display screen of electronic devices such as mobile phones and tablets is increasing. The screen brightness of the display screen is crucial to the display effect. Therefore, the screen brightness of the display screen needs to be controlled.
In the related art, the electronic device controls the backlight brightness of the display screen by controlling an input voltage of the display screen, and adjusts the screen brightness of the display screen corresponding to a plurality of gray scales under the backlight brightness by using Gamma (Gamma) parameters, where the Gamma parameters include brightness adjustment parameters corresponding to the plurality of gray scales, and for each gray scale, adjusts the screen brightness of the display screen at the gray scale by using the brightness adjustment parameters corresponding to the gray scale.
However, since the brightness adjustment parameter corresponding to the gray scale is a fixed parameter, when the backlight brightness of the display screen is low, the correlation between the screen brightness of the display screen and the backlight brightness is weak, which results in that the screen brightness corresponding to the adjusted gray scale is large and cannot meet the minimum screen brightness requirement of the display screen, so the accuracy of the screen brightness control method in the related art is poor.
Disclosure of Invention
The embodiment of the application provides a method, a device, equipment, a storage medium and a program product for controlling screen brightness, and can improve the accuracy of controlling the screen brightness. The technical scheme is as follows:
in one aspect, a method for controlling screen brightness is provided, and the method includes:
acquiring a backlight parameter of a display screen to be controlled, wherein the backlight parameter is used for representing the backlight brightness of the display screen;
under the condition that the backlight parameter is not larger than a first preset backlight parameter, acquiring a first Gamma parameter of the display screen under the backlight parameter, wherein the first Gamma parameter comprises brightness adjusting parameters corresponding to a plurality of first gray scales;
determining a second Gamma parameter based on the backlight parameter and the first Gamma parameter, wherein the screen brightness of the display screen after being adjusted by the second Gamma parameter is smaller than the screen brightness of the display screen after being adjusted by the first Gamma parameter;
and controlling the screen brightness of the display screen based on the second Gamma parameter.
In another aspect, there is provided a screen brightness control apparatus, including:
the device comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring backlight parameters of a display screen to be controlled, and the backlight parameters are used for expressing backlight brightness of the display screen;
the second obtaining module is used for obtaining a first Gamma parameter of the display screen under the backlight parameter under the condition that the backlight parameter is not larger than a first preset backlight parameter, wherein the first Gamma parameter comprises brightness adjusting parameters corresponding to a plurality of first gray scales;
the first determining module is used for determining a second Gamma parameter based on the backlight parameter and the first Gamma parameter, wherein the screen brightness of the display screen after being adjusted by the second Gamma parameter is smaller than the screen brightness of the display screen after being adjusted by the first Gamma parameter;
and the control module is used for controlling the screen brightness of the display screen based on the second Gamma parameter.
In another aspect, an electronic device is provided, which includes a processor and a memory, where the memory stores at least one program code, and the at least one program code is loaded and executed by the processor to implement the above-mentioned method for controlling screen brightness.
In another aspect, a computer-readable storage medium is provided, in which at least one program code is stored, and the at least one program code is loaded and executed by a processor to implement the above-mentioned control method for screen brightness.
In another aspect, a computer program product is provided, where at least one program code is stored, and the at least one program code is loaded and executed by a processor to implement the above-mentioned method for controlling screen brightness.
The technical scheme provided by the embodiment of the application has the following beneficial effects:
the embodiment of the application provides a screen brightness control method, when the backlight parameter is low, the screen brightness of the display screen is controlled through the determined second Gamma parameter, and the screen brightness of the display screen after the second Gamma parameter adjusts the display screen is low, so that the minimum screen brightness requirement of the display screen can be met, and the accuracy of the screen brightness control method is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
Fig. 1 illustrates a block diagram of a terminal according to an exemplary embodiment of the present application;
FIG. 2 is a flow chart illustrating a method of controlling screen brightness in accordance with an exemplary embodiment of the present application;
FIG. 3 illustrates a flow chart of a method of controlling screen brightness in accordance with another exemplary embodiment of the present application;
fig. 4 is a diagram illustrating a method of controlling screen brightness according to another exemplary embodiment of the present application;
fig. 5 illustrates a flowchart of a method of controlling screen brightness according to another exemplary embodiment of the present application;
fig. 6 is a block diagram illustrating a structure of a screen brightness control apparatus according to an exemplary embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
It should be noted that information (including but not limited to user equipment information, user personal information, etc.), data (including but not limited to data for analysis, stored data, presented data, etc.), and signals referred to in this application are authorized by the user or sufficiently authorized by various parties, and the collection, use, and processing of the relevant data is required to comply with relevant laws and regulations and standards in relevant countries and regions. For example, the name keywords, mapping relation tables, etc. referred to in this application are obtained under sufficient authorization.
Referring to fig. 1, a block diagram of an electronic device 100 according to an exemplary embodiment of the present application is shown. The electronic device 100 may be a smartphone, a tablet computer, or other electronic device with a data processing function. The electronic device 100 in the present application may include one or more of the following components: a processor 110, a memory 120.
Optionally, processor 110 includes one or more processing cores. The processor 110 connects various parts within the overall electronic device 100 using various interfaces and lines, and performs various functions of the electronic device 100 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 120 and calling data stored in the memory 120. Optionally, the processor 110 is implemented in hardware using at least one of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 110 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Neural-Network Processing Unit (NPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is responsible for rendering and drawing the content to be displayed on the display screen 130; the NPU is used to implement an Artificial Intelligence (AI) function; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 110, but may be implemented by a single chip.
Optionally, the Memory 120 includes a Random Access Memory (RAM) and may also include a Read-Only Memory (Read-Only Memory). Optionally, the memory 120 includes a non-transitory computer-readable medium. The memory 120 may be used to store instructions, programs, code sets, or instruction sets. The memory 120 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing various method embodiments described below, and the like; the storage data area may store data (such as audio data, a phonebook) created according to the use of the electronic apparatus 100, and the like.
In the embodiment of the present application, the electronic device 100 further includes a display screen. A display screen is a display component for displaying a user interface. Optionally, the display screen is a display screen with a touch function, and through the touch function, a user may use any suitable object such as a finger, a touch pen, and the like to perform a touch operation on the display screen 130. The display screen is typically provided on the front panel of the electronic device 100. The display screen may be designed as a full-face screen, curved screen, odd-shaped screen, double-face screen, or folding screen. The display screen may also be designed as a combination of a full screen and a curved screen, a combination of a special screen and a curved screen, and the like, which is not limited in this embodiment.
In a possible implementation manner, a driving circuit is provided in the electronic device 100, and the electronic device 100 provides a driving voltage for the display screen through the driving circuit. Optionally, a brightness adjustment button is arranged in the display screen, and a user can change the driving voltage of the display screen based on the brightness adjustment button, so that the screen brightness of the display screen is changed. Optionally, the brightness adjustment button is a brightness bar, and the user adjusts the screen brightness of the display screen of the electronic device 100 by dragging the brightness bar.
In addition, those skilled in the art will appreciate that the configuration of the electronic device 100 illustrated in the above figures does not constitute a limitation of the electronic device 100, and that the electronic device 100 may include more or fewer components than illustrated, or some components may be combined, or a different arrangement of components. For example, the electronic device 100 further includes a microphone, a speaker, a radio frequency circuit, an input unit, a sensor, an audio circuit, a Wireless Fidelity (Wi-Fi) module, a power supply, a bluetooth module, and other components, which are not described herein again.
Referring to fig. 2, a flowchart of a method for controlling screen brightness according to an exemplary embodiment of the present application is shown. The method comprises the following steps:
step 201: and acquiring backlight parameters of the display screen to be controlled, wherein the backlight parameters are used for expressing the backlight brightness of the display screen.
Step 202: and under the condition that the backlight parameter is not greater than a first preset backlight parameter, acquiring a first Gamma parameter of the display screen under the backlight parameter, wherein the first Gamma parameter comprises brightness adjusting parameters corresponding to a plurality of first gray scales.
Step 203: and determining a second Gamma parameter based on the backlight parameter and the first Gamma parameter, wherein the screen brightness of the display screen adjusted by the second Gamma parameter is less than the screen brightness of the display screen adjusted by the first Gamma parameter.
Step 204: and controlling the screen brightness of the display screen based on the second Gamma parameter.
In one possible implementation manner, determining the second Gamma parameter based on the backlight parameter and the first Gamma parameter includes:
based on the backlight parameter and the first Gamma parameter, the first Gamma parameter is compressed to obtain a second Gamma parameter, or,
and adjusting the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter.
In another possible implementation manner, compressing the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter includes:
determining the screen brightness of the first gray scales under the backlight parameter based on the brightness adjusting parameter corresponding to the first gray scales included by the first Gamma parameter;
and compressing the number of the first gray scales based on the screen brightness of the first gray scales under the backlight parameter to obtain a second Gamma parameter.
In another possible implementation manner, compressing the number of the plurality of first gray scales based on the screen brightness of the plurality of first gray scales under the backlight parameter to obtain a second Gamma parameter includes:
determining a preset number of second gray scales from the plurality of first gray scales according to the sequence of the screen brightness from low to high based on the screen brightness of the plurality of first gray scales under the backlight parameter;
and determining the brightness adjusting parameters corresponding to the preset number of second gray scales as second Gamma parameters.
In another possible implementation manner, before determining a preset number of second gray scales from the plurality of first gray scales in order from low to high screen brightness based on the screen brightness of the plurality of first gray scales under the backlight parameter, the method further includes:
determining a backlight parameter interval where the backlight parameter is located;
and determining a preset number corresponding to the backlight parameter interval based on the backlight parameter interval.
In another possible implementation manner, adjusting the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter includes:
determining the maximum target screen brightness corresponding to the backlight parameter;
and adjusting brightness adjusting parameters corresponding to a plurality of first gray scales included in the first Gamma parameter based on the maximum target screen brightness to obtain a second Gamma parameter.
In another possible implementation manner, adjusting the brightness adjustment parameters corresponding to the plurality of first gray scales included in the first Gamma parameter based on the maximum target screen brightness to obtain a second Gamma parameter includes:
determining the screen brightness of the first gray scales under the backlight parameter based on the brightness adjusting parameter corresponding to the first gray scales included by the first Gamma parameter;
determining a first target gray scale corresponding to the maximum screen brightness and a second target gray scale corresponding to the minimum screen brightness from the multiple first gray scales based on the screen brightness of the multiple first gray scales under the backlight parameter;
adjusting the maximum screen brightness corresponding to the first target gray scale to be the maximum target screen brightness;
determining positive correlation data between the gray scale and the screen brightness based on the first target gray scale and the maximum target screen brightness, and the second target gray scale and the minimum screen brightness;
and adjusting the brightness adjusting parameters corresponding to the first gray scales based on the positive correlation data to obtain a second Gamma parameter.
In another possible implementation manner, determining the second Gamma parameter based on the backlight parameter and the first Gamma parameter includes:
and under the condition that the backlight parameter is not larger than a second preset backlight parameter, determining the second Gamma parameter as the preset Gamma parameter, wherein the second preset backlight parameter is not larger than the first preset backlight parameter.
In another possible implementation manner, the method further includes:
and under the condition that the backlight parameter is larger than a first preset backlight parameter, controlling the screen brightness of the display screen based on the first Gamma parameter.
The embodiment of the application provides a screen brightness control method, when the backlight parameter is low, the screen brightness of the display screen is controlled through the determined second Gamma parameter, and the screen brightness of the display screen after the second Gamma parameter adjusts the display screen is low, so that the minimum screen brightness requirement of the display screen can be met, and the accuracy of the screen brightness control method is improved.
Please refer to fig. 3, which shows a flowchart of a method for controlling screen brightness according to another exemplary embodiment of the present application, and the method is described with an example that a first Gamma parameter is compressed to obtain a second Gamma parameter. The method comprises the following steps:
step 301: the electronic equipment acquires a backlight parameter of a display screen to be controlled, wherein the backlight parameter is used for expressing the backlight brightness of the display screen.
The backlight parameter is a screen backlight Value of the Display screen, and may be represented by a DBV (Display Brightness Value), which corresponds to the Brightness of the backlight of the Display screen. In one possible implementation, the backlight parameter of the display screen is related to the driving voltage of the display screen. Correspondingly, the method comprises the following steps: the electronic equipment acquires the driving voltage of the display screen, and determines the backlight parameter of the display screen to be controlled according to the corresponding relation between the driving voltage and the backlight parameter.
In one possible implementation, referring to fig. 4, the driving voltage and the backlight parameter have a positive correlation. The electronic equipment provides a driving voltage for the display screen through the driving circuit, and the lower the driving voltage is, the lower the backlight brightness of the display screen is. The value of the driving voltage is not less than the preset minimum voltage, namely, not less than the insurance voltage. The backlight brightness corresponding to the insurance voltage is the insurance backlight brightness of the display screen, namely insurance DBV. In one possible implementation, with continued reference to fig. 4, the user changes the driving voltage by dragging a brightness bar on the display interface of the electronic device, with the leftmost side of the brightness bar corresponding to the arming voltage. In the embodiment of the present application, the values of the insurance voltage and the insurance DBV are not particularly limited, and may be set and modified as needed. For example, the insurance DBV is 5DBV, 6DBV, 7DBV, and the like.
Step 302: the electronic equipment acquires a first Gamma parameter of the display screen under the backlight parameter under the condition that the backlight parameter is not larger than a first preset backlight parameter, wherein the first Gamma parameter comprises brightness adjusting parameters corresponding to a plurality of first gray scales.
In a possible implementation manner, the Gamma parameters corresponding to the electronic device under different backlight parameters are the same, and the first Gamma parameter of the display screen under the backlight parameters is also the Gamma parameter corresponding to the display screen. Under the same backlight parameters, the gray scales of the display pictures of the display screen are different, the brightness of the screen to be displayed is different, and the corresponding brightness adjusting parameters are also different. The first Gamma parameter comprises a plurality of brightness adjusting parameters corresponding to the first gray scale. In one possible implementation, the plurality of first gray levels includes 256 gray levels; correspondingly, the content of the first Gamma parameter is 8 bits, and the first Gamma parameter comprises 256 brightness adjusting parameters. In another possible implementation, the plurality of first grayscales includes 1024 grayscale values; accordingly, the content of the Gamma parameter is 10 bits, and the Gamma parameter includes 1024 brightness adjustment parameters.
In a possible implementation manner, a register is arranged in a driving circuit of the electronic device, and the first Gamma parameter is stored in the register. Correspondingly, the step of acquiring the first Gamma parameter of the display screen under the backlight parameter by the electronic device is as follows: the electronic equipment sends an acquisition instruction for acquiring the Gamma parameter to the register; the register receives the acquisition instruction and returns the Gamma parameter to the electronic equipment; the electronic equipment acquires a first Gamma parameter of the display screen under the backlight parameter. In the embodiment of the present application, the value of the first preset backlight parameter is not specifically limited, and may be set and modified as needed. For example, the first preset backlight parameter is 5DBV, 6DBV, 7DBV, etc. Optionally, with reference to fig. 4, the electronic device adjusts the screen through the first Gamma parameter, and when the backlight parameter is the safety DBV value 5DBV, the screen brightness is 2.6nit, which cannot reach 2nit required by the minimum screen brightness.
In the embodiment of the application, because the electronic equipment can directly call the Gamma parameter from the register, and the register is arranged on the driving circuit of the electronic equipment, the Gamma parameter is called locally, and the speed of calling the Gamma parameter locally is higher, so that the efficiency of obtaining the Gamma parameter is improved.
Step 303: the electronic equipment compresses the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter, and the screen brightness of the display screen adjusted by the second Gamma parameter is smaller than the screen brightness of the display screen adjusted by the first Gamma parameter.
The electronic equipment determines a second Gamma parameter according to the backlight parameter and the first Gamma parameter, wherein the second Gamma parameter comprises a plurality of brightness adjusting parameters corresponding to a second gray scale. The electronic equipment adjusts the screen brightness of the display screen to be smaller through the brightness adjusting parameters corresponding to the second gray scales, and the minimum screen brightness requirement of the display screen can be met.
In a possible implementation manner, with reference to fig. 4, the electronic device compresses the first Gamma parameter according to the screen brightness of the plurality of first gray scales included in the first Gamma parameter under the smaller backlight parameter, so as to obtain a second Gamma parameter. Correspondingly, the method comprises the following steps: the electronic equipment determines the screen brightness of the first gray scales under the backlight parameter based on the brightness adjusting parameter corresponding to the first gray scales included by the first Gamma parameter; and compressing the number of the first gray scales based on the screen brightness of the first gray scales under the backlight parameter to obtain a second Gamma parameter.
In the embodiment of the application, the electronic device compresses the first Gamma parameter through the screen brightness of the plurality of first gray scales under the smaller backlight parameter to obtain the second Gamma parameter, so that the screen brightness adjusted by the second Gamma parameter can meet the minimum screen brightness requirement of the display screen under the smaller backlight parameter, and the accuracy of the screen brightness control method is improved.
In a possible implementation manner, the content of the second Gamma parameter obtained by compressing the first Gamma parameter is different from the content of the first Gamma parameter, that is, the number of the plurality of second gray scales is different from the number of the plurality of first gray scales. Correspondingly, the electronic device compresses the number of the plurality of first gray scales based on the screen brightness of the plurality of first gray scales under the backlight parameter to obtain a second Gamma parameter, and the method comprises the following steps: the electronic equipment determines a preset number of second gray scales from the multiple first gray scales according to the screen brightness of the multiple first gray scales under the backlight parameter and the sequence from low to high of the screen brightness; and determining the brightness adjusting parameters corresponding to the preset number of second gray scales as second Gamma parameters. In the embodiment of the present application, the numerical value of the preset number is not specifically limited, and may be set and modified as needed. For example, the number of the first grayscales is 1024, and the number of the second grayscales is any value between 800-900.
In the embodiment of the application, the preset number of second gray scales are determined from the plurality of first gray scales according to the sequence of the screen brightness from low to high, so that the screen brightness of the selected plurality of second gray scales under the smaller backlight parameter can meet the minimum screen brightness requirement of the display screen, and the accuracy of the screen brightness control method is improved.
In another possible implementation manner, before selecting the plurality of second gray scales, the electronic device determines the preset number of the selected plurality of second gray scales through the range of the interval where the backlight parameter is located. Correspondingly, the step of determining the preset number by the electronic device is as follows: the electronic equipment determines a backlight parameter interval where the backlight parameter is located; and determining a preset number corresponding to the backlight parameter interval based on the backlight parameter interval.
Optionally, a corresponding relationship between the backlight parameter interval and the preset number is stored in the electronic device. For example, the number of the plurality of first grayscales is 1024, wherein the backlight parameter interval is: more than 10DBV, the corresponding preset number is 1024; the backlight parameter interval is as follows: greater than 9DBV and not greater than 10DBV, the corresponding preset number being 1012; the backlight parameter interval is as follows: the number of the corresponding preset numbers is 1000, and the number is more than 8DBV and not more than 9 DBV; the backlight parameter interval is as follows: greater than 7DBV and not greater than 8DBV, wherein the corresponding preset number is 980; the backlight parameter interval is as follows: greater than 6DBV and not greater than 7DBV, and the corresponding preset number is 940; the backlight parameter interval is as follows: more than 5DBV and not more than 6DBV, wherein the corresponding preset number is 900; the backlight parameter interval is as follows: not greater than 5DBV, corresponding to a preset number of 860.
In the embodiment of the application, the preset number of the second gray scales is determined according to the backlight parameter interval where the backlight parameter is located in the sequence from low to high of the screen brightness, so that in the process of reducing the backlight parameter, the screen brightness of the display screen can be adjusted for many times through the second gray scales corresponding to the backlight parameter, the obvious change in brightness is avoided, the smoothness of brightness change is increased, and the accuracy of the screen brightness control method is further improved.
In another possible implementation, the electronic device determines the number of the plurality of second gray levels by a minimum screen brightness requirement. Correspondingly, the electronic device compresses the number of the plurality of first gray scales based on the screen brightness of the plurality of first gray scales under the backlight parameter to obtain a second Gamma parameter, and the method comprises the following steps: the electronic equipment determines a plurality of second gray scales of which the screen brightness is not greater than the preset screen brightness from the plurality of first gray scales according to the screen brightness of the plurality of first gray scales under the backlight parameter and the sequence from low to high of the screen brightness; and determining the brightness adjusting parameters corresponding to the plurality of second gray scales as second Gamma parameters. In the embodiment of the present application, the preset screen brightness value is not specifically limited, and can be set and modified as needed.
Optionally, the preset screen brightness is a target screen brightness corresponding to the minimum screen brightness requirement. For example, with reference to fig. 4, the target screen brightness corresponding to the minimum screen brightness requirement is 2nit, and the electronic device determines, based on the screen brightness of the plurality of first gray scales under the backlight parameter, a plurality of second gray scales with the screen brightness not greater than 2nit from the plurality of first gray scales according to the sequence of the screen brightness from low to high; and determining the brightness adjusting parameters corresponding to the plurality of second gray scales as second Gamma parameters.
In the embodiment of the application, the second gray scales which are not larger than the preset screen brightness are determined from the first gray scales according to the sequence from low to high of the screen brightness, so that the screen brightness of the selected second gray scales under the smaller backlight parameter can meet the minimum screen brightness requirement of the display screen, and the accuracy of the screen brightness control method is improved.
Step 304: and the electronic equipment controls the screen brightness of the display screen based on the second Gamma parameter.
In a possible implementation manner, the second Gamma parameter includes a plurality of brightness adjustment parameters corresponding to the second gray scale. Correspondingly, the method comprises the following steps: the electronic equipment determines a plurality of gray scales included in a displayed image; for each gray scale, determining a brightness adjusting parameter corresponding to a second gray scale which is the same as the gray scale from the brightness adjusting parameters corresponding to the plurality of second gray scales; and controlling the screen brightness corresponding to the gray scale through the brightness adjusting parameter corresponding to the second gray scale which is the same as the gray scale.
Step 305: and the electronic equipment controls the screen brightness of the display screen based on the first Gamma parameter under the condition that the backlight parameter is greater than the first preset backlight parameter.
In a possible implementation manner, the first Gamma parameter includes a brightness adjustment parameter corresponding to a plurality of first gray scales. Correspondingly, the method comprises the following steps: the electronic equipment determines a plurality of gray scales included in a displayed image; for each gray scale, determining a brightness adjusting parameter corresponding to a first gray scale which is the same as the gray scale from brightness adjusting parameters corresponding to a plurality of first gray scales; and controlling the screen brightness corresponding to the gray scale through the brightness adjusting parameter corresponding to the first gray scale which is the same as the gray scale.
The embodiment of the application provides a screen brightness control method, when the backlight parameter is low, the screen brightness of the display screen is controlled through the determined second Gamma parameter, and the screen brightness of the display screen after the second Gamma parameter adjusts the display screen is low, so that the minimum screen brightness requirement of the display screen can be met, and the accuracy of the screen brightness control method is improved.
Please refer to fig. 5, which shows a flowchart of a method for controlling screen brightness according to another exemplary embodiment of the present application, and the method is described with an example that a second Gamma parameter is obtained by adjusting a first Gamma parameter. The method comprises the following steps:
step 501: the electronic equipment acquires a backlight parameter of a display screen to be controlled, wherein the backlight parameter is used for expressing the backlight brightness of the display screen.
Step 501 is the same as step 301, and will not be described herein again.
Step 502: the electronic equipment acquires a first Gamma parameter of the display screen under the backlight parameter under the condition that the backlight parameter is not larger than a first preset backlight parameter, wherein the first Gamma parameter comprises brightness adjusting parameters corresponding to a plurality of first gray scales.
Step 502 is the same as step 302, and will not be described herein again.
Step 503: the electronic equipment adjusts the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter, and the screen brightness of the display screen adjusted by the second Gamma parameter is smaller than the screen brightness of the display screen adjusted by the first Gamma parameter.
In a possible implementation manner, with reference to fig. 4, the second Gamma parameter determined again by the electronic device is different from the brightness adjustment parameter of the first Gamma parameter, that is, the brightness adjustment parameters corresponding to the plurality of second gray scales are different from the brightness adjustment parameters corresponding to the plurality of first gray scales. Correspondingly, the method comprises the following steps: the electronic equipment determines the maximum target screen brightness corresponding to the backlight parameter; and adjusting brightness adjusting parameters corresponding to a plurality of first gray scales included in the first Gamma parameter based on the maximum target screen brightness to obtain a second Gamma parameter.
In one possible implementation, the maximum target screen brightness corresponding to the backlight parameter is the screen brightness corresponding to the minimum screen brightness requirement. Optionally, the number of the plurality of second grayscales is the same as the number of the plurality of first grayscales, that is, the content of the second Gamma parameter is the same as the content of the first Gamma parameter. For example, the content of the first Gamma parameter is 10 bits including 1024 brightness adjustment parameters, and the content of the second Gamma parameter is 10 bits including 1024 brightness adjustment parameters.
In the embodiment of the application, the electronic device adjusts the first Gamma parameter through the screen brightness of the plurality of first gray scales under the smaller backlight parameter to obtain the second Gamma parameter, so that the screen brightness adjusted through the second Gamma parameter can meet the minimum screen brightness requirement of the display screen under the smaller backlight parameter, and the accuracy of the screen brightness control method is improved.
In one possible implementation, there is a positive correlation between the gray level and the screen brightness. Under the same backlight parameter, the larger the gray value corresponding to the gray scale is, the larger the screen brightness is. Correspondingly, the electronic device adjusts the brightness adjusting parameters corresponding to the plurality of first gray scales included in the first Gamma parameter based on the maximum target screen brightness, and the step of obtaining the second Gamma parameter is as follows: the electronic equipment determines the screen brightness of the first gray scales under the backlight parameter based on the brightness adjusting parameter corresponding to the first gray scales included by the first Gamma parameter; determining a first target gray scale corresponding to the maximum screen brightness and a second target gray scale corresponding to the minimum screen brightness from the multiple first gray scales based on the screen brightness of the multiple first gray scales under the backlight parameter; adjusting the maximum screen brightness corresponding to the first target gray scale to be the maximum target screen brightness; determining positive correlation data between the gray scale and the screen brightness based on the first target gray scale and the maximum target screen brightness, and the second target gray scale and the minimum screen brightness; and adjusting the brightness adjusting parameters corresponding to the first gray scales based on the positive correlation data to obtain a second Gamma parameter. In the embodiment of the present application, the value of the maximum target screen brightness is not specifically limited, and may be set and modified as needed. For example, the maximum target screen brightness is 2 nit.
In the embodiment of the application, since the electronic device adjusts the screen brightness corresponding to the first target gray scale to the maximum target screen brightness, and the first target gray scale is the gray scale corresponding to the maximum screen brightness in the plurality of first gray scales, it can be ensured that the screen brightness adjusted by the second Gamma parameter is smaller than the maximum target screen brightness under a smaller backlight parameter, so that the minimum screen brightness requirement of the display screen can be met, and the accuracy of the screen brightness control method is improved.
In another possible implementation manner, the second Gamma parameter is a stored preset Gamma parameter, and the stored preset Gamma parameter is directly determined as the second Gamma parameter when the backlight parameter is not greater than the first preset backlight parameter. In a possible implementation manner, the first Gamma parameter and the second Gamma parameter are stored in a register, the electronic device obtains a backlight parameter of a display screen to be controlled, obtains the first Gamma parameter from the register when the backlight parameter is greater than a first preset backlight parameter, and obtains the second Gamma parameter from the register when the backlight parameter is not greater than the first preset backlight parameter.
In the embodiment of the application, the electronic device can directly call the first Gamma parameter and the second Gamma parameter from the register, and the register is arranged on the driving circuit of the electronic device, so that the first Gamma parameter and the second Gamma parameter are called locally, the speed of calling the Gamma parameters locally is high, and the efficiency of obtaining the first Gamma parameter and the second Gamma parameter is improved.
In another possible implementation manner, a plurality of preset Gamma parameters are stored in the register, and the electronic device determines the preset Gamma parameter corresponding to the backlight parameter from the preset Gamma parameters according to the size of the backlight parameter. Correspondingly, the step of determining the second Gamma parameter by the electronic device is as follows: the electronic equipment determines the brightness value of the backlight parameter, and determines a preset Gamma parameter corresponding to the brightness value from a plurality of stored preset Gamma parameters based on the brightness value to obtain a second Gamma parameter.
In the embodiment of the application, the electronic device determines the preset Gamma parameter corresponding to the backlight parameter from the backlight parameter according to the size of the backlight parameter, so that in the process of reducing the backlight parameter, the screen brightness of the display screen can be adjusted for multiple times through the preset Gamma parameter corresponding to the backlight parameter, thereby avoiding obvious change in brightness, increasing smoothness of brightness change, and further improving the accuracy of the screen brightness control method.
Step 504: and the electronic equipment controls the screen brightness of the display screen based on the second Gamma parameter.
Step 504 is the same as step 304, and will not be described herein.
Step 505: and the electronic equipment controls the screen brightness of the display screen based on the first Gamma parameter under the condition that the backlight parameter is greater than the first preset backlight parameter.
Step 505 is the same as step 305, and will not be described herein again.
The embodiment of the application provides a screen brightness control method, when the backlight parameter is low, the screen brightness of the display screen is controlled through the determined second Gamma parameter, and the screen brightness of the display screen after the second Gamma parameter adjusts the display screen is low, so that the minimum screen brightness requirement of the display screen can be met, and the accuracy of the screen brightness control method is improved.
Referring to fig. 6, a block diagram of a device for controlling screen brightness according to an exemplary embodiment of the present application is shown. The device includes:
a first obtaining module 601, configured to obtain a backlight parameter of a display screen to be controlled, where the backlight parameter is used to represent backlight brightness of the display screen;
a second obtaining module 602, configured to obtain a first Gamma parameter of the display screen under the backlight parameter when the backlight parameter is not greater than a first preset backlight parameter, where the first Gamma parameter includes brightness adjustment parameters corresponding to a plurality of first gray scales;
the first determining module 603 is configured to determine a second Gamma parameter based on the backlight parameter and the first Gamma parameter, where the screen brightness of the display screen after being adjusted by the second Gamma parameter is smaller than the screen brightness of the display screen after being adjusted by the first Gamma parameter;
and the control module 604 is configured to control the screen brightness of the display screen based on the second Gamma parameter.
In a possible implementation manner, the determining module 603 is configured to compress the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain the second Gamma parameter, or the determining module 603 is configured to adjust the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain the second Gamma parameter.
In another possible implementation manner, the determining module 603 includes:
the first determining unit is used for determining the screen brightness of the plurality of first gray scales under the backlight parameter based on the brightness adjusting parameter corresponding to the plurality of first gray scales included by the first Gamma parameter;
and the compression unit is used for compressing the number of the first gray scales based on the screen brightness of the first gray scales under the backlight parameter to obtain a second Gamma parameter.
In another possible implementation manner, the compressing unit is configured to determine a preset number of second gray scales from the plurality of first gray scales according to the screen brightness of the plurality of first gray scales under the backlight parameter and in a descending order of the screen brightness; and determining the brightness adjusting parameters corresponding to the preset number of second gray scales as second Gamma parameters.
In another possible implementation manner, the apparatus further includes:
the second determining module is used for determining the backlight parameter interval where the backlight parameter is located; and determining a preset number corresponding to the backlight parameter interval based on the backlight parameter interval.
In another possible implementation manner, the determining module 603 includes:
the second determining unit is used for determining the maximum target screen brightness corresponding to the backlight parameter;
and the adjusting unit is used for adjusting the brightness adjusting parameters corresponding to the plurality of first gray scales included in the first Gamma parameter based on the maximum target screen brightness to obtain a second Gamma parameter.
In another possible implementation manner, the adjusting unit is configured to determine, based on a brightness adjustment parameter corresponding to a plurality of first gray scales included in the first Gamma parameter, screen brightness of the plurality of first gray scales under the backlight parameter; determining a first target gray scale corresponding to the maximum screen brightness and a second target gray scale corresponding to the minimum screen brightness from the multiple first gray scales based on the screen brightness of the multiple first gray scales under the backlight parameter; adjusting the maximum screen brightness corresponding to the first target gray scale to be the maximum target screen brightness; determining positive correlation data between the gray scale and the screen brightness based on the first target gray scale and the maximum target screen brightness, and the second target gray scale and the minimum screen brightness; and adjusting the brightness adjusting parameters corresponding to the first gray scales based on the positive correlation data to obtain a second Gamma parameter.
In another possible implementation manner, the determining module 603 is further configured to determine that the second Gamma parameter is the preset Gamma parameter when the backlight parameter is not greater than the second preset backlight parameter, where the second preset backlight parameter is not greater than the first preset backlight parameter.
In another possible implementation manner, the control module 604 is further configured to control the screen brightness of the display screen based on the first Gamma parameter when the backlight parameter is greater than the first preset backlight parameter.
The embodiment of the application provides a screen brightness control device, when the backlight parameter is low, the screen brightness of a display screen is controlled through the determined second Gamma parameter, and the screen brightness of the display screen after the second Gamma parameter adjusts the display screen is low, so that the minimum screen brightness requirement of the display screen can be met, and the accuracy of the screen brightness control method is improved.
In an exemplary embodiment, there is also provided a computer readable medium storing at least one program code, which is loaded and executed by a processor, to implement the control method of screen brightness in the above embodiments.
In an exemplary embodiment, there is also provided a computer program product storing at least one program code, which is loaded and executed by a processor to implement the control method of screen brightness in the above-described embodiments.
In some embodiments, the computer program according to the embodiments of the present application may be deployed to be executed on one computer device or on multiple computer devices located at one site, or may be executed on multiple computer devices distributed at multiple sites and interconnected by a communication network, and the multiple computer devices distributed at the multiple sites and interconnected by the communication network may constitute a block chain system.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for facilitating the understanding of the technical solutions of the present application by those skilled in the art, and is not intended to limit the present application. 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 (13)

1. A method for controlling screen brightness, the method comprising:
acquiring a backlight parameter of a display screen to be controlled, wherein the backlight parameter is used for representing the backlight brightness of the display screen;
under the condition that the backlight parameter is not larger than a first preset backlight parameter, acquiring a first Gamma parameter of the display screen under the backlight parameter, wherein the first Gamma parameter comprises brightness adjusting parameters corresponding to a plurality of first gray scales;
determining a second Gamma parameter based on the backlight parameter and the first Gamma parameter, wherein the screen brightness of the display screen after being adjusted by the second Gamma parameter is smaller than the screen brightness of the display screen after being adjusted by the first Gamma parameter;
and controlling the screen brightness of the display screen based on the second Gamma parameter.
2. The method of claim 1, wherein determining a second Gamma parameter based on the backlight parameter and the first Gamma parameter comprises:
compressing the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter, or,
and adjusting the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter.
3. The method of claim 2, wherein compressing the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter comprises:
determining the screen brightness of the plurality of first gray scales under the backlight parameter based on the brightness adjusting parameter corresponding to the plurality of first gray scales included by the first Gamma parameter;
and compressing the number of the first gray scales based on the screen brightness of the first gray scales under the backlight parameter to obtain the second Gamma parameter.
4. The method of claim 3, wherein compressing the number of the first grayscales based on the screen brightness of the first grayscales under the backlight parameter to obtain the second Gamma parameter comprises:
determining a preset number of second gray scales from the plurality of first gray scales according to the screen brightness of the plurality of first gray scales under the backlight parameter and the sequence from low to high of the screen brightness;
and determining the brightness adjusting parameters corresponding to the preset number of second gray scales as the second Gamma parameters.
5. The method of claim 4, wherein before determining a preset number of second gray levels from the plurality of first gray levels in an order from low to high screen brightness based on the screen brightness of the plurality of first gray levels under the backlight parameter, the method further comprises:
determining a backlight parameter interval where the backlight parameter is located;
and determining a preset number corresponding to the backlight parameter interval based on the backlight parameter interval.
6. The method of claim 2, wherein the adjusting the first Gamma parameter based on the backlight parameter and the first Gamma parameter to obtain a second Gamma parameter comprises:
determining the maximum target screen brightness corresponding to the backlight parameter;
and adjusting brightness adjusting parameters corresponding to a plurality of first gray scales included in the first Gamma parameter based on the maximum target screen brightness to obtain a second Gamma parameter.
7. The method of claim 6, wherein the adjusting the brightness adjustment parameters corresponding to the plurality of first gray scales included in the first Gamma parameter based on the maximum target screen brightness to obtain a second Gamma parameter comprises:
determining the screen brightness of the plurality of first gray scales under the backlight parameter based on the brightness adjusting parameter corresponding to the plurality of first gray scales included by the first Gamma parameter;
determining a first target gray scale corresponding to the maximum screen brightness and a second target gray scale corresponding to the minimum screen brightness from the plurality of first gray scales based on the screen brightness of the plurality of first gray scales under the backlight parameter;
adjusting the maximum screen brightness corresponding to the first target gray scale to the maximum target screen brightness;
determining positive correlation data between gray scale and screen brightness based on the first target gray scale and the maximum target screen brightness, the second target gray scale and the minimum screen brightness;
and adjusting brightness adjusting parameters corresponding to the first gray scales based on the positive correlation data to obtain the second Gamma parameter.
8. The method of claim 1, wherein determining a second Gamma parameter based on the backlight parameter and the first Gamma parameter comprises:
and under the condition that the backlight parameter is not larger than a second preset backlight parameter, determining the second Gamma parameter as the preset Gamma parameter, wherein the second preset backlight parameter is not larger than the first preset backlight parameter.
9. The method of claim 1, further comprising:
and under the condition that the backlight parameter is larger than the first preset backlight parameter, controlling the screen brightness of the display screen based on the first Gamma parameter.
10. A device for controlling screen brightness, the device comprising:
the device comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for acquiring backlight parameters of a display screen to be controlled, and the backlight parameters are used for expressing backlight brightness of the display screen;
the second obtaining module is used for obtaining a first Gamma parameter of the display screen under the backlight parameter under the condition that the backlight parameter is not larger than a first preset backlight parameter, wherein the first Gamma parameter comprises brightness adjusting parameters corresponding to a plurality of first gray scales;
the first determining module is used for determining a second Gamma parameter based on the backlight parameter and the first Gamma parameter, wherein the screen brightness of the display screen after being adjusted by the second Gamma parameter is smaller than the screen brightness of the display screen after being adjusted by the first Gamma parameter;
and the control module is used for controlling the screen brightness of the display screen based on the second Gamma parameter.
11. An electronic device, characterized in that the electronic device comprises a processor and a memory, wherein at least one program code is stored in the memory, and the at least one program code is loaded and executed by the processor to implement the screen brightness control method according to any one of claims 1 to 9.
12. A computer-readable storage medium having at least one program code stored therein, the at least one program code being loaded and executed by a processor to implement the method of controlling screen brightness according to any one of claims 1 to 9.
13. A computer program product having at least one program code stored therein, the at least one program code being loaded into and executed by a processor to implement the method of controlling screen brightness according to any one of claims 1 to 9.
CN202210216335.1A 2022-03-07 2022-03-07 Screen brightness control method, device, equipment, storage medium and program product Active CN114495863B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210216335.1A CN114495863B (en) 2022-03-07 2022-03-07 Screen brightness control method, device, equipment, storage medium and program product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210216335.1A CN114495863B (en) 2022-03-07 2022-03-07 Screen brightness control method, device, equipment, storage medium and program product

Publications (2)

Publication Number Publication Date
CN114495863A true CN114495863A (en) 2022-05-13
CN114495863B CN114495863B (en) 2023-04-28

Family

ID=81486295

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210216335.1A Active CN114495863B (en) 2022-03-07 2022-03-07 Screen brightness control method, device, equipment, storage medium and program product

Country Status (1)

Country Link
CN (1) CN114495863B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114898722A (en) * 2022-05-25 2022-08-12 深圳创维－Rgb电子有限公司 Picture display method, device, equipment and computer readable storage medium
CN116741087A (en) * 2022-10-12 2023-09-12 荣耀终端有限公司 Display screen brightness adjusting method and electronic equipment

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009031755A (en) * 2007-06-25 2009-02-12 Toshiba Matsushita Display Technology Co Ltd Liquid crystal display device
CN101727833A (en) * 2008-10-28 2010-06-09 承景科技股份有限公司 Gamma generating system and method suitable for backlight control
CN106886386A (en) * 2017-01-23 2017-06-23 苏州科达科技股份有限公司 The method that high-dynamics image is generated from low dynamic image
CN109427306A (en) * 2017-08-21 2019-03-05 联咏科技股份有限公司 Luminance compensation method and circuit
CN109817152A (en) * 2019-04-09 2019-05-28 Oppo广东移动通信有限公司 Screen luminance adjustment method and Related product
CN110634437A (en) * 2019-09-26 2019-12-31 昆山国显光电有限公司 Gamma curve acquisition method and device for multi-segment display brightness and display equipment
CN110689846A (en) * 2019-11-06 2020-01-14 昆山国显光电有限公司 Pixel gray scale compensation parameter compression storage method and device and storage medium
CN111754913A (en) * 2020-06-29 2020-10-09 昆山国显光电有限公司 Gamma calculation method and device and display panel
CN111754912A (en) * 2020-06-29 2020-10-09 昆山国显光电有限公司 Gamma debugging method and device
CN112581909A (en) * 2020-12-30 2021-03-30 北京奕斯伟计算技术有限公司 Display compensation method and device and display device
CN112863424A (en) * 2021-03-11 2021-05-28 芯颖科技有限公司 Display screen brightness adjusting method and device and electronic equipment

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009031755A (en) * 2007-06-25 2009-02-12 Toshiba Matsushita Display Technology Co Ltd Liquid crystal display device
CN101727833A (en) * 2008-10-28 2010-06-09 承景科技股份有限公司 Gamma generating system and method suitable for backlight control
CN106886386A (en) * 2017-01-23 2017-06-23 苏州科达科技股份有限公司 The method that high-dynamics image is generated from low dynamic image
CN109427306A (en) * 2017-08-21 2019-03-05 联咏科技股份有限公司 Luminance compensation method and circuit
CN109817152A (en) * 2019-04-09 2019-05-28 Oppo广东移动通信有限公司 Screen luminance adjustment method and Related product
CN110634437A (en) * 2019-09-26 2019-12-31 昆山国显光电有限公司 Gamma curve acquisition method and device for multi-segment display brightness and display equipment
CN110689846A (en) * 2019-11-06 2020-01-14 昆山国显光电有限公司 Pixel gray scale compensation parameter compression storage method and device and storage medium
CN111754913A (en) * 2020-06-29 2020-10-09 昆山国显光电有限公司 Gamma calculation method and device and display panel
CN111754912A (en) * 2020-06-29 2020-10-09 昆山国显光电有限公司 Gamma debugging method and device
CN112581909A (en) * 2020-12-30 2021-03-30 北京奕斯伟计算技术有限公司 Display compensation method and device and display device
CN112863424A (en) * 2021-03-11 2021-05-28 芯颖科技有限公司 Display screen brightness adjusting method and device and electronic equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114898722A (en) * 2022-05-25 2022-08-12 深圳创维－Rgb电子有限公司 Picture display method, device, equipment and computer readable storage medium
CN116741087A (en) * 2022-10-12 2023-09-12 荣耀终端有限公司 Display screen brightness adjusting method and electronic equipment

Also Published As

Publication number Publication date
CN114495863B (en) 2023-04-28

Similar Documents

Publication Publication Date Title
CN114495863B (en) Screen brightness control method, device, equipment, storage medium and program product
US9928811B2 (en) Methods, devices, and computer-readable storage medium for image display
CN108038836B (en) Image processing method and device and mobile terminal
CN113963659B (en) Display device and adjustment method thereof
US10978027B2 (en) Electronic display partial image frame update systems and methods
CN108287744A (en) Character displaying method, device and storage medium
CN111625213B (en) Picture display method, device and storage medium
CN111508039A (en) Word processing method of ink screen and communication terminal
EP4350530A1 (en) Map display method and apparatus, and terminal device
CN109948581B (en) Image-text rendering method, device, equipment and readable storage medium
CN108172200B (en) Method for displaying text in application and terminal equipment
CN111182236A (en) Image synthesis method and device, storage medium and terminal equipment
CN106204552A (en) The detection method of a kind of video source and device
CN104376834B (en) A kind of luminance regulating method and electronic equipment
CN113885729A (en) Touch sampling control method and device, terminal and computer readable storage medium
CN113129222A (en) Color shading correction method, terminal device and computer-readable storage medium
CN110933312A (en) Photographing control method and related product
JP6612799B2 (en) Electronic device, control method, and control program
CN107124638B (en) Data transmission method, device and system
CN110766606A (en) Image processing method and electronic equipment
CN107835336B (en) Dual-camera frame synchronization method and device, user terminal and storage medium
CN116382540A (en) Display method and device for electronic paper, electronic equipment and storage medium
CN111819618A (en) Pixel contrast control system and method
CN115880193A (en) Image processing method, image processing device, electronic equipment and storage medium
CN114038370A (en) Display parameter adjusting method and device, storage medium and display equipment

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