CN113870812B - Display screen refreshing frame rate adjusting method and device, processor, chip and terminal - Google Patents

Display screen refreshing frame rate adjusting method and device, processor, chip and terminal Download PDF

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Publication number
CN113870812B
CN113870812B CN202111205752.8A CN202111205752A CN113870812B CN 113870812 B CN113870812 B CN 113870812B CN 202111205752 A CN202111205752 A CN 202111205752A CN 113870812 B CN113870812 B CN 113870812B
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display screen
frame rate
state
display
data transmission
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CN113870812A (en
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王月文
钟柳和
高延凯
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202310549563.5A priority Critical patent/CN116645933A/en
Priority to CN202310549590.2A priority patent/CN116504201A/en
Priority to CN202111205752.8A priority patent/CN113870812B/en
Publication of CN113870812A publication Critical patent/CN113870812A/en
Priority to PCT/CN2022/116735 priority patent/WO2023061096A1/en
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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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/39—Control of the bit-mapped memory
    • G09G5/393—Arrangements for updating the contents of the bit-mapped memory
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • 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

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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)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Digital Computer Display Output (AREA)

Abstract

The embodiment of the application belongs to the technical field of display, and particularly relates to a method, a device, a processor, a chip and a terminal for adjusting a refresh frame rate of a display screen, wherein in the embodiment of the application, the refresh frame rate of the display screen for image display is adjusted by monitoring the working state of a mobile industry processor interface and when the working state of the mobile industry processor interface changes, so that the refresh frame rate of the display screen can be dynamically adjusted according to the working state of the mobile industry processor interface, the problem that the display screen has larger power consumption due to the fact that the display screen is fixedly used for displaying can be avoided, the power consumption of the display screen is reduced, and meanwhile, the display screen has higher instantaneity.

Description

Display screen refreshing frame rate adjusting method and device, processor, chip and terminal
Technical Field
The application belongs to the technical field of display, and particularly relates to a method and a device for adjusting refresh frame rate of a display screen, a processor, a chip and a terminal.
Background
With the continuous development of display screen technology, more and more display screens capable of supporting high refresh frame rate for picture display are generated.
However, when a fixed high refresh frame rate is used to display a picture, although the smoothness of the picture can be improved, there is a problem that the power consumption of the display screen is large.
Disclosure of Invention
The embodiment of the application provides a method, a device, a processor, a chip and a terminal for adjusting the refresh frame rate of a display screen, which can realize the adjustment of the refresh frame rate of the display screen and are beneficial to reducing the power consumption of the display screen.
An embodiment of the present application provides a method for adjusting a refresh frame rate of a display screen, where the method is applied to a terminal including the display screen, and includes:
monitoring the working state of a mobile industry processor interface;
and when the working state of the mobile industry processor interface changes, adjusting the refresh frame rate of the display screen for image display.
A second aspect of the embodiments of the present application provides an adjustment device for a refresh frame rate of a display screen, where the adjustment device is configured in a terminal including the display screen, and the adjustment device includes:
the monitoring unit is used for monitoring the working state of the mobile industry processor interface;
and the adjusting unit is used for adjusting the refreshing frame rate of the display screen for image display when the working state of the mobile industry processor interface changes.
A third aspect of the embodiments of the present application provides an application processor, where the application processor is configured to a terminal including a display screen, and the application processor is configured to:
monitoring the working state of a mobile industry processor interface;
when the working state of the mobile industry processor interface is about to enter an idle state from a data transmission state, a frequency-reducing instruction is sent to a display driving chip of the display screen, and the frequency-reducing instruction is used for indicating the display driving chip to reduce the refresh frame rate of the display screen for image display.
The fourth aspect of the present application provides a display driving chip, where the display driving chip is configured on a display screen of a terminal and is configured to drive the display screen of the terminal to perform image display, and the display driving chip is configured to:
monitoring the working state of a mobile industry processor interface;
and when the working state of the mobile industry processor interface changes, adjusting the refresh frame rate of the display screen for image display.
A fifth aspect of an embodiment of the present application provides a display screen, where the display screen is configured with the display driving chip described in the fourth aspect.
A sixth aspect of embodiments of the present application provides a terminal including a display screen, where the display screen of the terminal is configured with the display driving chip described in the fourth aspect.
A seventh aspect of embodiments of the present application provides a terminal including a display screen, where the terminal is configured with an application processor as described in the third aspect above.
An eighth aspect of the present application provides a terminal including a display screen, where the terminal includes an application processor, the display screen is configured with a display driving chip, the application processor is connected with the display driving chip through a mobile industry processor interface, and the terminal is configured to implement the method for adjusting a refresh frame rate of the display screen in the first aspect, or the terminal is configured with the device for adjusting a refresh frame rate of the display screen in the second aspect.
A ninth aspect of the embodiments of the present application provides a computer readable storage medium storing a computer program which when executed implements the steps of the method of the first aspect described above.
In the embodiment of the application, the working state of the mobile industry processor interface is monitored, and when the working state of the mobile industry processor interface changes, the refresh frame rate of the display screen for image display is adjusted, so that the refresh frame rate of the display screen can be dynamically adjusted according to the working state of the mobile industry processor interface, the problem that the display screen has larger power consumption due to the fact that the display is fixedly used for displaying at a high refresh frame rate can be avoided, and the power consumption of the display screen is reduced.
In addition, since the working state of the mobile industry processor interface is determined by the hardware logic, and the change of the working state is real-time, the display screen refresh frame rate is adjusted by monitoring the working state of the mobile industry processor interface, so that the method has higher real-time performance.
Drawings
In order to more clearly illustrate the method for adjusting the refresh frame rate of the display screen according to the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present application, and therefore should not be construed as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of an image display process under an AP-DDCI-Panel architecture;
FIG. 2 is a schematic diagram showing the implementation of the related art AP for adjusting the refresh frequency according to the average frame rate indication DDIC;
fig. 3 is a schematic flowchart of a first implementation of a method for adjusting a refresh frame rate of a display screen according to an embodiment of the present application;
fig. 4 is a first structural schematic diagram of a terminal provided in an embodiment of the present application;
fig. 5 is a schematic diagram of an operating state of MIPI provided in an embodiment of the present application;
Fig. 6 is a schematic diagram of a second implementation flow of a method for adjusting a refresh frame rate of a display screen according to an embodiment of the present application;
FIG. 7 is a first adjustment schematic of a display refresh frame rate provided by an embodiment of the present application;
FIG. 8 is a second adjustment schematic of a display refresh frame rate provided by an embodiment of the present application;
fig. 9 is a schematic structural diagram of an adjustment device for a refresh frame rate of a display screen according to an embodiment of the present application;
fig. 10 is a second structural schematic diagram of a terminal provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
"and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, unless otherwise indicated, "a plurality" means two or more, and "at least one", "one or more" means one, two or more.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
The method of the embodiment of the present application may be applied to various terminals, for example, mobile phones, tablet computers, vehicle-mounted devices, augmented reality (augmented reality, AR)/Virtual Reality (VR) devices, notebook computers, ultra-mobile personal computer (UMPC), netbooks, personal digital assistants (personal digital assistant, PDA), and other terminals including display screens, and the embodiment of the present application does not limit the specific types of terminals. In addition, the display screen may be an Active-matrix organic light Emitting Diode (AMOLED) display screen.
For an AMOLED display screen, under the driving architecture of an Application processor (Application Processor, AP) -display driving chip (Display Driver Integrated Circuit, DDIC) -display Panel (Panel), that is, under the driving architecture of the AP-DDIC-Panel, as shown in fig. 1, an AP end firstly performs layer drawing rendering through an Application program (App), then performs layer composition on the drawn layer through a Surface Flinger to obtain image data, and further sends (writes) the image data to the DDIC through a mobile industry processor interface (Mobile Industry Processor Interface, MIPI). The DDIC stores the image data transmitted from the AP in a Buffer (Buffer), and controls the Panel to perform image refresh Display (Display) by scanning (reading) the image data in the Buffer. And in a high refresh frame rate display scene, the AP end generates image data at high frequency, and correspondingly, the Panel side performs high-frequency image refresh according to the image data, so that the smoothness of a picture is improved.
In the practical application process, besides the need of realizing high refresh frame rate in the high frame rate game, the high frame rate is mainly applied to a small amount of fast sliding scenes such as desktop sliding, album browsing and the like, so as to improve the smoothness of the pictures when a user executes fast sliding operation. However, the fast sliding takes a small proportion of time in practical applications, and most of the usage scenarios are still static display, low-speed sliding, and low-frame-rate video playing scenarios. Under the use of low frame rate, the image rendering speed of the AP end is reduced, if the Panel side still keeps high refresh frame rate to refresh the image (when the AP end does not send new image data, the DDIC controls the Panel to repeatedly display a single frame image according to the recently received image data), the smoothness of the picture is not improved, and the power consumption of the display screen is increased.
In the related art, in order to reduce the power consumption of the display screen with high refresh frame rate, the AP end counts the number of frames of image data sent by the AP to the DDIC in a period of time through software, so as to determine an average frame rate in the counted period according to the number of frames, and then sends a refresh frame rate adjustment instruction to the DDIC based on the average frame rate, so that the DDIC adjusts the refresh frame rate based on the instruction.
Because the AP end needs to occupy a certain processing resource when executing the software logic, the statistics period is usually set to be longer, for example, 1s, i.e. the number of frames of the image data sent by the AP within 1s is counted, so as to determine the average frame rate within 1s, due to the consideration of the power consumption level. In one illustrative example, the AP counts 30 frames of image data transmitted within the last 1s, thereby determining an average frame rate of 30fps.
However, the average frame rate can only reflect the average sending rate of the image data in the statistical period, and cannot reflect the real-time image data sending condition of the AP, especially when the statistical period is longer, the average frame rate calculated by the AP has obvious hysteresis and poor accuracy, and the subsequent refresh frame rate is easy to be improperly adjusted, so that the display effect is affected.
Illustratively, as shown in fig. 2, in the statistics period, the AP transmits 30 frames of image data in the first 500ms (DDIC scans according to new image data transmitted by the AP in the first 500 ms), and does not transmit image data in the last 500ms (DDIC repeatedly scans according to the last frame of image data in the last 500 ms), and the AP determines that the average frame rate is 30fps based on the total frame number of image data transmitted in the statistics period, and cannot recognize that the screen of the last 500ms is in a still state. Further, the AP instructs the DDIC to adjust the refresh frame rate to 30Hz based on the average frame rate of 30fps. However, since the last 500ms picture is still (i.e., in a static display scenario), the DDIC may set a lower refresh frame rate to reduce power consumption, but in practice the DDIC still maintains a higher refresh frame rate, resulting in increased display power consumption.
In addition, in the related art, in order to reduce the power consumption of the display screen with high refresh frame rate, the AP end also determines the refresh frame rate corresponding to the current display scene by identifying the type of the application program, and then sends a refresh frame rate adjustment instruction to the DDIC based on the refresh frame rate, so that the DDIC adjusts the refresh frame rate based on the instruction.
By way of example, the AP end determines that the display content of the current display scene belongs to high-speed update, medium-speed update, low-speed update or still by identifying that the type corresponding to the application program is a video type, a web page type or a social type.
However, the type corresponding to the application program can only roughly reflect the display type of the current scene, and cannot feed back the refresh rate required by the current display screen in real time, so that the refresh rate of the display screen cannot be adjusted in real time.
Based on the technical problems, the method, the device, the processor, the chip and the terminal for adjusting the refresh frame rate of the display screen, provided by the embodiment of the application, are used for adjusting the refresh frame rate of the display screen for image display by monitoring the working state of the MIPI and adjusting the refresh frame rate of the display screen when the working state of the MIPI changes, so that the refresh frame rate of the display screen can be dynamically adjusted according to the working state of the MIPI, the method, the device and the device have higher instantaneity, the problem that the refresh rate of the display screen cannot be adjusted in real time in the related art can be solved, and the problem that the power consumption of the display screen is larger due to the fact that the refresh frame rate of the display screen is dynamically adjusted in real time according to the working state of the MIPI can be avoided.
Specifically, since the working state of the MIPI is determined by hardware logic, and the change of the working state is real-time, the method and the device have higher real-time performance by monitoring the working state of the MIPI to adjust the refresh frame rate of the display screen, so that the power consumption is further saved under the condition of ensuring smooth display.
In order to better explain the technical solutions of the present application, the following description is given by specific examples.
Fig. 3 is a schematic diagram of a first implementation flow of a method for adjusting a refresh frame rate of a display screen according to an embodiment of the present application. The method for adjusting the refresh frame rate of the display screen may be performed by a terminal including the display screen, including the following steps 301 to 302.
Step 301, monitoring the operating state of the MIPI.
In the embodiments of the present application, MIPI is an interface standard for mobile devices and consumer electronics products established by MIPI alliance, which enables interfaces of these devices (e.g., terminals including display screens in the present application) to increase bandwidth, improve performance, and reduce cost, complexity, power consumption, and electromagnetic interference, and which is not a single interface or protocol, but rather includes a set of protocols and standards that can meet the unique requirements of various subsystems.
As shown in fig. 4, an exemplary first structural schematic diagram of a terminal provided in an embodiment of the present application may include an Application Processor (AP) 41 and a display screen, where the display screen includes a display driving chip (DDIC) 42 and a display panel 43, and the display driving chip 42 is used to drive the display panel 43 of the display screen to display images, and the AP and the DDIC may communicate through a Mobile Industry Processor Interface (MIPI).
The working state of MIPI can be obtained by monitoring at the AP end or by monitoring the DDIC. Thus, in some embodiments of the present application, the operating state of the MIPI may be monitored based on the AP. In yet other embodiments of the present application, the operating state of the MIPI may be monitored based on DDIC.
And step 302, when the working state of the MIPI changes, adjusting the refresh frame rate of the display screen for image display.
Alternatively, in some embodiments of the present application, the operating states of the MIPI may include a data transmission state and an idle mode (idle mode).
Alternatively, in some embodiments of the present application, the data transmission state may include a data transmission progress state and a data transmission preparation state.
The data transmission progress state refers to a state in which data transmission is being performed, and the data transmission preparation state refers to a preparation state for data transmission, that is, a state in which data transmission is required and data transmission can be immediately performed. The data transmission ready state generally means a state in which the MIPI is in an idle state after transmitting one frame of data, and in this state, the MIPI is in a state in which data transmission is required, and thus data transmission can be immediately performed without waking up.
In this embodiment of the present application, the idle state refers to a state in which no data needs to be transmitted, and in this state, when there is data that needs to be transmitted, the MIPI needs to be awakened first, and after the MIPI is awakened, the MIPI enters the data transmission proceeding state.
In one application scenario, as shown in fig. 5, after the MIPI completes data transmission, a data transmission preparation state is entered, that is, a data transmission preparation state is entered from a data transmission progress state. After the MIPI enters the data transmission ready state, when a preset standby period, for example, 60ms is reached, if there is no data to be transmitted, it enters an idle state, i.e., enters the idle state from the data transmission ready state. After the MIPI enters the idle state, if the AP needs to perform data transmission to the DDIC, a wake-up instruction needs to be sent to the MIPI first to wake up the MIPI, so that the MIPI enters a data transmission proceeding state from the idle state, in the data transmission proceeding state, the MIPI performs data transmission to the DDIC through the MIPI, and when the MIPI completes data transmission, the MIPI reenters a data transmission preparation state.
The whole working process of MIPI is as follows: data transmission progress state-data transmission preparation state-idle state-data transmission progress state, and continuously loops.
The MIPI is in a state where data transmission is immediately performed without performing data transmission in a data transmission preparation state, and therefore, the data transmission preparation state and the data transmission performance state can be combined into a data transmission state in general.
Based on the above description of various operating states of the MIPI, in the embodiment of the present application, the above-mentioned operating state change of the MIPI in step 302 may include the following two forms: first, the working state of MIPI enters the idle state from the data transmission state; second, the operating state of MIPI is entered into a data transmission state from an idle state.
In practical application, the refresh frame rate of the display screen for image display can be adjusted when the working state of the MIPI is monitored to enter the idle state from the data transmission state, namely, when the working state of the MIPI is in the idle state, the refresh frame rate of the display screen for image display is reduced, so that the refresh frame rate of the display screen for image display is kept at a low refresh frame rate, and after the working state of the MIPI enters the data transmission state from the idle state, for example, after the AP transmits the image data to the DDIC, the DDIC can automatically increase the refresh frame rate of the display screen for image display after receiving the image data, and whether the working state of the MIPI enters the data transmission state from the idle state or not is not needed.
Thus, optionally, in some embodiments of the present application, the step 301 may only monitor whether the operating state of the MIPI enters the idle state from the data transmission state, and not monitor whether the operating state of the MIPI enters the data transmission state from the idle state, and accordingly, the step 302 may refer to: and when the working state of the MIPI is changed from the data transmission state to the idle state, the refresh frame rate of the display screen for image display is adjusted.
For example, when the working state of the MIPI is monitored to enter an idle state from a data transmission state, the refresh frame rate of the display screen for image display is reduced, so that when the AP does not transmit data to the DDIC, the refresh frame rate of the display screen is actively reduced, and further the power consumption of the display screen is reduced. When the working state of MIPI is changed from the data transmission state to the idle state, the refresh frame rate of the display screen for image display can be automatically increased after the DDIC receives the image data. That is, it is not necessary to monitor whether the operating state of the MIPI is entered into the idle state from the data transmission state.
In practical application, the DDIC can perform image display by default with a low refresh frame rate, and when the working state of the MIPI is monitored to enter the data transmission state from the idle state, the refresh frame rate of the display screen for performing image display is increased, so that the power consumption of the display screen is reduced.
Thus, optionally, in some embodiments of the present application, the step 301 may only monitor whether the operating state of the MIPI enters the data transmission state from the idle state, and not monitor whether the operating state of the MIPI enters the idle state from the data transmission state, and accordingly, the step 302 may refer to: and when the working state of the MIPI is monitored to enter a data transmission state from an idle state, adjusting the refresh frame rate of the display screen for image display.
For example, when the working state of the MIPI is changed from the idle state to the data transmission state, the refresh frame rate of the display screen for image display is increased.
Since the AP need not necessarily send image data to the DDIC when the working state of the MIPI is changed from the idle state to the data sending state, but may be a control instruction for the AP to send a screen display to the DDIC, for example, a control instruction for controlling a display voltage of a display screen, etc., in some embodiments of the present application, optionally, when it is monitored that the working state of the MIPI is changed from the idle state to the data sending state, and when the data sent by the MIPI is the image data, the refresh frame rate of the display screen for performing image display may be increased.
That is, when the operation state of the MIPI is changed from the idle state to the data transmission state and it is confirmed that the data that the AP needs to transmit to the DDIC is image display data, the refresh frame rate of the display screen for image display is increased.
In addition, in an application scene, the refresh frame rate of the display screen for image display can be automatically increased without receiving image data by the DDIC, and the refresh frame rate of the display screen for image display can be increased without adopting a low refresh frame rate by default, and when the working state of the MIPI is monitored to enter a data transmission state from an idle state, the refresh frame rate of the display screen for image display is increased; but adjusts the refresh frame rate of the display screen for image display based entirely on the operating state of the MIPI.
That is, in some embodiments of the present application, the step 301 may refer to monitoring whether the operating state of the MIPI enters the data transmission state from the idle state, and monitoring whether the operating state of the MIPI enters the idle state from the data transmission state, and, correspondingly, the step 302 may refer to: and when the working state of the MIPI enters the data transmission state from the idle state, the refresh frame rate of the display screen for image display is adjusted, and when the working state of the MIPI enters the data transmission state from the idle state, the refresh frame rate of the display screen for image display is also adjusted.
For example, when the working state of the MIPI is monitored to enter the idle state from the data transmission state, the refresh frame rate of the display screen for image display is reduced, and when the working state of the MIPI is monitored to enter the data transmission state from the idle state, the refresh frame rate of the display screen for image display is increased.
In the embodiment of the application, since the MIPI is a physical layer interface implemented based on hardware, the working state of the MIPI is determined by hardware logic, and the change of the working state of the MIPI is real-time, the adjustment of the refresh frame rate of the display screen by monitoring the working state of the mobile industrial processor interface has higher real-time performance, so that the power consumption is further saved under the condition of ensuring smooth display.
According to the method and the device, the working state of the mobile industry processor interface is monitored, and when the working state of the mobile industry processor interface changes, the refreshing frame rate of the display screen for image display is adjusted, so that the refreshing frame rate of the display screen can be dynamically adjusted according to the working state of the mobile industry processor interface, and therefore the problem that the display screen is large in power consumption due to the fact that the high refreshing frame rate is fixedly used for display can be avoided, and the power consumption of the display screen is reduced.
It should be noted that, because the operating state of the MIPI is controlled by the software driver layer of the AP, the software driver layer of the AP needs to monitor the operating state of the MIPI in real time, so that the operating state of the MIPI is monitored at the AP end, and the refresh frame rate of the display screen is dynamically adjusted based on the operating state of the MIPI, which may not require additional power consumption, and thus may further reduce the power consumption of the display screen.
For example, as shown in fig. 6, a second implementation flowchart of a method for adjusting a refresh frame rate of a display screen according to an embodiment of the present application is shown, where the method for adjusting a refresh frame rate of a display screen is performed by an AP of a terminal, and may specifically be performed by a device for adjusting a refresh frame rate of a display screen configured on the AP, and includes the following steps 601 to 603.
In step 601, the AP based on the terminal monitors the operating state of MIPI.
In practical application, when the MIPI is about to enter the idle state from the data transmission state, instruction data about to enter the idle state is sent to the AP, so that the AP can monitor whether the working state of the MIPI enters the idle state from the data transmission state in real time.
In addition, in the process that the MIPI enters the data transmission state from the idle state, the AP indicates that the AP needs to transmit data to the DDIC, and further transmits a wake-up instruction to the MIPI, so that the MIPI enters the data transmission state from the idle state, and therefore, the AP can monitor whether the working state of the MIPI enters the data transmission state from the idle state or not in real time.
Step 602, when the working state of the MIPI is monitored to be about to enter an idle state from a data transmission state, a down conversion instruction is sent to the DDIC of the display screen.
Alternatively, as shown in fig. 7, in some embodiments of the present application, when the AP monitors that the working state of the MIPI is about to enter the idle state from the data transmission state, a frequency-reducing instruction may be generated, and the frequency-reducing instruction is sent to the DDIC of the display screen through the MIPI, and the MIPI enters the idle state after sending the frequency-reducing instruction.
In this embodiment of the present application, when the MIPI is about to enter the idle state from the data transmission state, instruction data about to enter the idle state is sent to the AP, and at this time, the MIPI is still in the data transmission state, so that the down-conversion instruction may be sent to the DDIC.
The down-conversion instruction is used for instructing the DDIC to reduce the refresh frame rate of the display screen for image display.
Alternatively, in some embodiments of the present application, the DDIC may be preset with different refresh frame rate levels, and the above-mentioned down-conversion instruction may be used to instruct the DDIC to down-regulate the refresh frame rate level by one level. For example, when five levels of refresh frame rate levels are set, from high to low, 120Hz, 90Hz, 60Hz, 30Hz and 10Hz respectively, if the highest refresh frame rate of the current DDIC is 120Hz, after receiving a down-conversion instruction issued by the AP, determining that the highest refresh frame rate needs to be reduced to 90Hz; if the down-conversion instruction issued by the AP is received again, the highest refresh frame rate is determined to be required to be reduced to 60Hz.
Optionally, in some embodiments of the present application, the above-mentioned down-conversion instruction is used to instruct the DDIC to down-convert the highest refresh frame rate to a specified refresh frame rate.
For example, as shown in fig. 7, the down-conversion instruction is used to instruct the DDIC to reduce the current highest refresh frame rate from 120Hz to 10Hz, so that after the MIPI enters the idle state, the DDIC performs image display at the refresh frame rate of 10 Hz.
It should be noted that the above-mentioned specified refresh frame rate may be other frame rates, and is not limited herein, and for example, the above-mentioned specified refresh frame rate may be a refresh frame rate of 20Hz, 1Hz, or the like.
Step 603, when the working state of the MIPI is changed from the idle state to the data transmission state, and the data transmitted by the MIPI is image data, increasing the refresh frame rate of the display screen for image display.
Because the MIPI enters the data transmission state from the idle state after the AP sends the wake-up instruction to the MIPI, the AP can monitor whether the working state of the MIPI enters the data transmission state from the idle state in real time.
In addition, the AP sends a wake-up instruction to the MIPI to wake up the MIPI, which indicates that the AP needs to send data to the DDIC, and the data may be image data or instruction data such as a control instruction, for example, a control instruction for controlling a display voltage of the display screen, etc., and when the data sent by the AP to the DDIC is instruction data, not image data, it indicates that it is not necessary to increase a refresh frame rate of the display screen for displaying images. Therefore, in some embodiments of the present application, when it is monitored that the operating state of the MIPI enters the data transmission state from the idle state, and the data transmitted by the MIPI is image data, the refresh frame rate of the display screen for displaying images may be increased.
Optionally, in some embodiments of the present application, when the AP monitors that the working state of the MIPI enters the data transmission state from the idle state, and the data transmitted by the MIPI is image data, the AP may generate an up-conversion instruction, and send the up-conversion instruction to the DDIC through the MIPI.
The up-conversion instruction is used for instructing the DDIC to increase the refresh frame rate of the display screen for image display.
Alternatively, in some embodiments of the present application, the DDIC may be preset with different refresh frame rate levels, and the above-mentioned up-conversion instruction may be used to instruct the DDIC to up-regulate the refresh frame rate level by one level. For example, when five levels of refresh frame rate levels are set, from high to low, 120Hz, 90Hz, 60Hz, 30Hz and 10Hz respectively, if the highest refresh frame rate of the current DDIC is 10Hz, after receiving an up-conversion instruction issued by the AP, it is determined that the highest refresh frame rate needs to be increased to 30Hz; if the up-conversion instruction issued by the AP is received again, the highest refresh frame rate is determined to be increased to 60Hz.
Optionally, in some embodiments of the present application, the above-mentioned up-conversion instruction may also be used to instruct the DDIC to perform automatic frequency conversion within a certain refresh frame rate range.
For example, the up-conversion instruction is used for instructing the DDIC to increase the current highest refresh frame rate from 10Hz to 30Hz, so that after the MIPI enters the data transmission state, the DDIC performs image display at the refresh frame rate of 30 Hz.
In this embodiment of the present application, the current display scene is identified by monitoring the working state of the MIPI by the AP, and when the working state of the MIPI changes, that is, when the current display scene changes, the refresh frame rate of the display screen for performing image display is increased or reduced, so that the refresh frame rate of the display screen can be dynamically adjusted according to the working state of the MIPI, that is, the refresh frame rate of the display screen can be dynamically adjusted according to the change of the current display scene, so as to avoid the problem that the display is performed by using too high refresh frame rate in a fixed manner, and the power consumption of the display screen is large. Thus, it can contribute to reducing power consumption of the display screen.
In addition, since the operating state of the MIPI is determined by the hardware logic, the change of the operating state is real-time, and the software driver layer of the AP needs to monitor the operating state of the MIPI in real time, so that monitoring the operating state of the MIPI and dynamically adjusting the refresh frame rate of the DDIC based on the operating state of the MIPI has higher real-time performance, and no additional power consumption is added, so that the power consumption of the display screen can be further reduced.
In some embodiments of the present application, DDIC may employ dynamic frequency conversion techniques to achieve automatic frequency conversion within a frequency conversion range.
For example, when the Base refresh Frame Rate (Base Frame Rate) of the display screen is 120Hz (i.e., the highest refresh Frame Rate) and the lowest refresh Frame Rate is 1Hz, then the DDIC may implement dynamic frequency conversion in the 1-120Hz frequency conversion range.
Specifically, as shown in fig. 6, in some embodiments of the present application, when the display screen is powered on, the AP may first send an initialization instruction carrying a preset refresh frame rate range to the DDIC.
The initialization instruction may be used to instruct the DDIC to perform image refresh according to a preset refresh frame rate range, that is, instruct the DDIC to perform automatic frequency conversion in the preset refresh frame rate range.
For example, the preset refresh frame rate ranges from 30Hz to 120Hz.
Alternatively, when the DDIC performs automatic frequency conversion in the preset refresh frame rate range of 30Hz to 120Hz, the DDIC may perform image scanning at an upper limit (i.e., the highest refresh frame rate) in the preset refresh frame rate range when receiving the image transmitted by the AP, and perform image scanning at a lower limit (i.e., the lowest refresh frame rate) in the preset refresh frame rate range when not receiving a new image.
When the lowest refresh frame rate is less than or equal to the refresh frame rate threshold, for example, when the refresh frame rate threshold is 30Hz, the image refresh can be performed after the high frame rate refresh for the preset times is maintained first and then the refresh frame rate is reduced to the lowest refresh frame rate in the process of reducing the highest refresh frame rate to the lowest refresh frame rate.
For example, as shown in fig. 7, the DDIC scans the image a transmitted by the AP at a refresh frame rate of 120Hz, then scans the image B transmitted by the AP at a refresh frame rate of 120Hz, and the AP does not transmit image data to the DDIC, and in order to prevent the problem of screen flicker occurring when the image B is directly down-converted from 120Hz to 30Hz, the DDIC may rescan the image B at a refresh frame rate of 120Hz (which is maintained once in the figure) and then reduce to a refresh frame rate of 30Hz until the MIPI transmits a down-conversion command to the DDIC within 8.3ms after the MIPI does not transmit image data within 7 8.3ms, and then enters an idle state.
At this time, the DDIC may reduce the refresh frame rate to a designated refresh frame rate according to the received down command sent by the MIPI, for example, as shown in fig. 7, after the MIPI enters the idle state, the DDIC may reduce the refresh frame rate to 10Hz and perform repeated refresh of the image at 10 Hz.
Optionally, when the AP monitors that the MIPI enters the data transmission state from the idle state, an up-conversion instruction may be sent to the DDIC through the MIPI before the image data is sent to the DDIC, so as to update the refresh frame rate of the display screen in real time.
For example, as shown in fig. 8, when the AP monitors that the MIPI enters the data transmission state from the idle state, before transmitting the image C to the DDIC, an up-conversion instruction may be transmitted to the DDIC through the MIPI, to instruct the DDIC to perform automatic frequency conversion within a refresh frame rate range of 30Hz to 120Hz, and then, the image C may be transmitted to the DDIC.
Wherein upon instructing the DDIC to automatically convert within a refresh frame rate range of 30Hz to 120Hz, image scanning may be performed at an upper limit (i.e., highest refresh frame rate) in the refresh frame rate range, and when no new image is received, image scanning may be performed at a lower limit (i.e., lowest refresh frame rate) in the refresh frame rate range.
When the lowest refresh frame rate is less than or equal to the refresh frame rate threshold, for example, when the refresh frame rate threshold is 30Hz, in the process of decreasing the highest refresh frame rate to the lowest refresh frame rate, the image refresh can be performed after the high frame rate refresh for the preset times is maintained, and then the image refresh is performed after the high frame rate refresh is decreased to the lowest refresh frame rate, so as to avoid the occurrence of smear.
For example, as shown in fig. 8, after the DDIC scans the image C transmitted by the AP at a refresh frame rate of 120Hz, the AP does not transmit image data to the DDIC, and at this time, image scanning should be performed while it is falling to the lower limit (i.e., the lowest refresh frame rate) in the range of the preset refresh frame rate, but in order to prevent the problem of smear from occurring from 10Hz up to 30Hz in the idle state, after maintaining the refresh frame rate of 120Hz for a preset number of times (once in the figure), image C may be rescanned again after being up to the lowest refresh frame rate of 30 Hz.
Optionally, in some embodiments of the present application, in order to further reduce the display power consumption of the terminal, when detecting that the operating state of the MIPI enters the idle state from the data transmission state, the AP may control the operating circuit of the MIPI to enter the low voltage state.
Specifically, when the operating state of the MIPI is changed from the data transmission state to the idle state, only the power consumption caused by the data transmission is reduced, and the entire operating circuit is not changed to the low voltage state, so that the operating circuit of the MIPI can be controlled to be in the low voltage state in order to further reduce the display power consumption of the terminal. Wherein, the MIPI is in a low voltage state, and the working voltage is smaller than the working voltage in a data transmission state.
For example, if the operating voltage of MIPI in the data transmission state is 5V, the operating voltage in the low voltage state is 0.5V.
It should be noted that, the embodiment shown in fig. 6 is implemented by a terminal-based AP, and in this embodiment of the present application, the adjustment method may be implemented by hardware based on DDIC of the display screen, in addition to the implementation of the adjustment method by software based on the terminal-based AP.
That is, when the operation state of the MIPI is changed, the DDIC based on the display screen monitors the operation state of the MIPI, and adjusts the refresh frame rate of the display screen for image display, which can save the transmission process of the frequency up instruction and the frequency down instruction compared with the AP implementation manner based on the terminal, that is, save the step of transmitting the frequency down instruction to the DDIC of the display screen in the step 602, and in the specific implementation of the step 603, transmit the frequency up instruction to the DDIC, so as to instruct the DDIC to increase the refresh frame rate of the display screen for image display, and the other steps are similar to the AP implementation manner based on the terminal, which is not repeated herein.
For the purposes of simplicity of explanation, the various method embodiments described above are depicted as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may, in some embodiments of the present application, occur in other orders.
Fig. 9 shows a schematic structural diagram of an adjusting device 900 for a refresh frame rate of a display screen according to an embodiment of the present application, where the adjusting device is configured on a terminal including a display screen, and includes a monitoring unit 901 and an adjusting unit 902.
The monitoring unit 901 is used for monitoring the working state of the mobile industry processor interface;
and the adjusting unit 902 is used for adjusting the refresh frame rate of the display screen for image display when the working state of the mobile industry processor interface changes.
Optionally, in some embodiments of the present application, the adjusting unit is configured to:
and when the working state of the mobile industry processor interface is changed from the data transmission state to the idle state, reducing the refreshing frame rate of the display screen for image display.
Optionally, in some embodiments of the present application, the adjusting device is configured in an application processor AP of the terminal; and the adjusting unit is used for sending a frequency-reducing instruction to a display driving chip of the display screen when the working state of the mobile industry processor interface is monitored to be about to enter an idle state from a data sending state, wherein the frequency-reducing instruction is used for indicating the display driving chip to reduce the refreshing frame rate of the display screen for image display.
Optionally, in some embodiments of the present application, the adjusting unit is configured to:
and when the working state of the mobile industry processor interface is changed from the idle state to the data transmission state and the data transmitted by the mobile industry processor interface is image data, increasing the refresh frame rate of the display screen for image display.
Optionally, in some embodiments of the present application, the adjusting device is configured in an application processor AP of the terminal;
the adjusting unit is configured to send an up-conversion instruction to a display driving chip of the display screen when the working state of the mobile industry processor interface enters a data sending state from an idle state and the data sent by the mobile industry processor interface is image data, where the up-conversion instruction is used to instruct the display driving chip to increase a refresh frame rate of image display of the display screen.
Optionally, in some embodiments of the present application, the adjusting unit is configured to:
and before the image data are sent to the display driving chip, an up-conversion instruction is sent to the display driving chip of the display screen.
Optionally, in some embodiments of the present application, the adjusting device is configured on a display driving chip of the terminal.
Optionally, in some embodiments of the present application, the adjusting device further includes a step-down unit for:
and when the working state of the mobile industry processor interface is changed from the data transmission state to the idle state, controlling the working circuit of the mobile industry processor interface to be in a low-voltage state.
Optionally, in some embodiments of the present application, the adjusting device further includes an initializing unit, configured to:
when the display screen is powered on and started, an initialization instruction carrying a first refreshing frame rate range is sent to a display driving chip of the display screen, and the initialization instruction is used for indicating the display driving chip to refresh images according to the first refreshing frame rate range.
It should be noted that, for convenience and brevity of description, the specific working process of the above-described display screen refresh frame rate adjustment device 900 may refer to the corresponding process of the above-described method in fig. 1 to 8, and will not be repeated here.
Exemplary, embodiments of the present application further provide an application processor configured to a terminal including a display screen, for:
monitoring the working state of a mobile industry processor interface;
when the working state of the mobile industry processor interface is about to enter an idle state from a data transmission state, a frequency-reducing instruction is sent to a display driving chip of the display screen, and the frequency-reducing instruction is used for indicating the display driving chip to reduce the refresh frame rate of the display screen for image display.
Optionally, in some embodiments of the present application, the application processor is configured to:
when the working state of the mobile industry processor interface enters a data transmission state from an idle state and the data transmitted by the mobile industry processor interface is image data, an up-conversion instruction is transmitted to a display driving chip of the display screen, and the up-conversion instruction is used for indicating the display driving chip to increase the refresh frame rate of the display screen for image display.
Optionally, in some embodiments of the present application, the application processor is configured to:
and before the image data is sent to the display driving chip, sending the frequency-up instruction to the display driving chip of the display screen.
Optionally, in some embodiments of the present application, the application processor is configured to:
and when the working state of the mobile industry processor interface is changed from the data transmission state to the idle state, controlling the working circuit of the mobile industry processor interface to be in a low-voltage state.
Optionally, in some embodiments of the present application, the application processor is configured to:
when the display screen is powered on and started, an initialization instruction carrying a preset refreshing frame rate range is sent to a display driving chip of the display screen, and the initialization instruction instructs the display driving chip to refresh images according to the first refreshing frame rate range.
Exemplary, the embodiment of the present application further provides a display driving chip, where the display driving chip is configured on a display screen of a terminal and is configured to drive the display screen of the terminal to perform image display, and the display driving chip is configured to:
monitoring the working state of a mobile industry processor interface;
and when the working state of the mobile industry processor interface changes, adjusting the refresh frame rate of the display screen for image display.
The display driving chip is used for:
and when the working state of the mobile industry processor interface is changed from the data transmission state to the idle state, reducing the refreshing frame rate of the display screen for image display.
The display driving chip is used for: and when the working state of the mobile industry processor interface enters a data transmission state from an idle state and the data transmitted by the mobile industry processor interface is image data, increasing the refresh frame rate of the display screen for image display.
Exemplary, the embodiment of the application also provides a display screen, which is configured with the display driving chip.
The embodiment of the application also provides a terminal comprising a display screen, wherein the terminal is provided with the application processor.
Exemplary, the embodiment of the application also provides a terminal comprising a display screen, wherein the display screen of the terminal is configured with the display driving chip.
As shown in fig. 10, an exemplary embodiment of the present application further provides a terminal including a display screen, where the terminal includes an application processor 111, where the display screen 113 includes a display driver chip (DDIC) 1131 and a display panel 1132, where the application processor 111 is connected to the display driver chip 1131 through a mobile industry processor interface MIPI, and the terminal is used to implement the method for adjusting the refresh frame rate of the display screen shown in fig. 1 to 8 or is configured with the device for adjusting the refresh frame rate of the display screen shown in fig. 9.
For example, the application processor 111 of the terminal implements the method for adjusting the refresh frame rate of the display screen when executing the computer program in the memory 112, so that the refresh frame rate of the display screen 113 can be dynamically adjusted according to the working state of the MIPI, thereby avoiding the problem that the display screen has larger power consumption due to the fixed use of the high refresh frame rate for display, and being beneficial to reducing the power consumption of the display screen.
In addition, since the working state of the mobile industry processor interface is determined by the hardware logic, and the change of the working state is real-time, the display screen refresh frame rate is adjusted by monitoring the working state of the mobile industry processor interface, so that the method has higher real-time performance.
The embodiments of the present application also provide a computer readable storage medium storing a computer program, which when executed, implements the steps of the method for adjusting the refresh frame rate of each display screen. It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units or modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the particular application and design constraints of the method of adjustment of the display refresh frame rate. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/user terminal and method may be implemented in other manners. For example, the apparatus/user terminal embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.
The above embodiments are merely for illustrating the adjustment method of the refresh frame rate of the display screen of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the method for adjusting the refresh frame rate of the display screen described in the foregoing embodiments may be modified, or some of the method features may be replaced equivalently; these modifications or substitutions do not depart from the spirit and scope of the method for adjusting the refresh frame rate of the display screen according to the embodiments of the present application, and are all included in the protection scope of the present application.

Claims (21)

1. A method for adjusting a refresh frame rate of a display screen, the method being applied to a terminal including the display screen, the method comprising:
monitoring the working state of a mobile industry processor interface;
when the working state of the mobile industry processor interface changes, the refresh frame rate of the display screen for image display is adjusted;
when the working state of the mobile industry processor interface changes, adjusting the refresh frame rate of the display screen for image display, including:
And when the working state of the mobile industry processor interface is changed from a data transmission state to an idle state, reducing the refresh frame rate of the display screen for image display, wherein the data transmission state comprises a data transmission preparation state and a data transmission proceeding state.
2. The adjustment method according to claim 1, wherein the adjustment method is applied to an application processor of the terminal, and the reducing a refresh frame rate of the display screen for image display when the operation state of the mobile industry processor interface enters the idle state from the data transmission state includes:
when the working state of the mobile industry processor interface is about to enter an idle state from a data transmission state, a frequency-reducing instruction is sent to a display driving chip of the display screen, and the frequency-reducing instruction is used for indicating the display driving chip to reduce the refresh frame rate of the display screen for image display.
3. The method of adjusting according to claim 1, wherein adjusting the refresh frame rate of the display screen for image display when the operating state of the mobile industrial processor interface changes comprises:
and when the working state of the mobile industry processor interface enters a data transmission state from an idle state and the data transmitted by the mobile industry processor interface is image data, increasing the refresh frame rate of the display screen for image display.
4. The adjustment method as set forth in claim 3, wherein the adjustment method is applied to an application processor of the terminal, and the increasing a refresh frame rate of the display screen for image display includes:
and sending an up-conversion instruction to a display driving chip of the display screen, wherein the up-conversion instruction is used for indicating the display driving chip to increase the refresh frame rate of the display screen for image display.
5. The adjustment method of claim 4, wherein the sending the frequency up instruction to the display driving chip of the display screen is specifically:
and before the image data is sent to the display driving chip, an up-conversion instruction is sent to the display driving chip of the display screen.
6. The adjustment method according to claim 1 or 3, wherein the adjustment method is applied to a display driving chip of the display screen.
7. The adjustment method according to any one of claims 1 to 5, characterized in that the adjustment method further comprises:
and when the working state of the mobile industry processor interface is changed from the data transmission state to the idle state, controlling the working circuit of the mobile industry processor interface to be in a low-voltage state.
8. The adjustment method according to any one of claims 1 to 5, characterized in that the adjustment method further comprises:
when the display screen is powered on and started, an initialization instruction carrying a preset refreshing frame rate range is sent to a display driving chip of the display screen, and the initialization instruction instructs the display driving chip to refresh images according to the preset refreshing frame rate range.
9. An adjustment device for a refresh frame rate of a display screen, the adjustment device being configured in a terminal including the display screen, the adjustment device comprising:
the monitoring unit is used for monitoring the working state of the mobile industry processor interface;
the adjusting unit is used for adjusting the refreshing frame rate of the display screen for image display when the working state of the mobile industry processor interface changes;
the adjusting unit is used for:
and when the working state of the mobile industry processor interface is changed from a data transmission state to an idle state, reducing the refresh frame rate of the display screen for image display, wherein the data transmission state comprises a data transmission preparation state and a data transmission proceeding state.
10. An application processor configured to a terminal comprising a display screen, the application processor configured to:
Monitoring the working state of a mobile industry processor interface;
when the working state of the mobile industry processor interface is about to enter an idle state from a data transmission state, a frequency-reducing instruction is sent to a display driving chip of the display screen, the frequency-reducing instruction is used for instructing the display driving chip to reduce the refresh frame rate of the display screen for image display, and the data transmission state comprises a data transmission preparation state and a data transmission progress state.
11. The application processor of claim 10, wherein the application processor is to:
when the working state of the mobile industry processor interface enters a data transmission state from an idle state and the data transmitted by the mobile industry processor interface is image data, an up-conversion instruction is transmitted to a display driving chip of the display screen, and the up-conversion instruction is used for indicating the display driving chip to increase the refresh frame rate of the display screen for image display.
12. The application processor of claim 11, wherein the application processor is to:
and before the image data is sent to the display driving chip, sending the frequency-up instruction to the display driving chip of the display screen.
13. The application processor of any of claims 10-12, wherein the application processor is to:
and when the working state of the mobile industry processor interface is changed from the data transmission state to the idle state, controlling the working circuit of the mobile industry processor interface to be in a low-voltage state.
14. The application processor of any of claims 10-12, wherein the application processor is to:
when the display screen is powered on and started, an initialization instruction carrying a preset refreshing frame rate range is sent to a display driving chip of the display screen, and the initialization instruction instructs the display driving chip to refresh images according to the preset refreshing frame rate range.
15. The display driving chip is characterized in that the display driving chip is configured on a display screen of a terminal and is used for driving the display screen of the terminal to display images, and the display driving chip is used for:
monitoring the working state of a mobile industry processor interface;
when the working state of the mobile industry processor interface changes, the refresh frame rate of the display screen for image display is adjusted;
the display driving chip is used for:
And when the working state of the mobile industry processor interface is changed from a data transmission state to an idle state, reducing the refresh frame rate of the display screen for image display, wherein the data transmission state comprises a data transmission preparation state and a data transmission proceeding state.
16. The display driver chip of claim 15, wherein the display driver chip is to: and when the working state of the mobile industry processor interface enters a data transmission state from an idle state and the data transmitted by the mobile industry processor interface is image data, increasing the refresh frame rate of the display screen for image display.
17. A display screen, characterized in that the display screen is provided with a display driving chip as claimed in claim 15 or 16.
18. A terminal comprising a display screen, characterized in that the terminal is provided with an application processor according to any of claims 10-14.
19. A terminal comprising a display screen, characterized in that the display screen is provided with a display driving chip as claimed in claim 15 or 16.
20. A terminal comprising a display screen, characterized in that the terminal comprises an application processor, the display screen is provided with a display driving chip, the application processor is connected with the display driving chip through a mobile industry processor interface, the terminal is used for realizing the method for adjusting the refresh frame rate of the display screen according to any one of claims 1-8, or the terminal is provided with the device for adjusting the refresh frame rate of the display screen according to claim 9.
21. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program, characterized in that the computer program when executed realizes the steps of the method according to any of claims 1-8.
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CN202310549590.2A CN116504201A (en) 2021-10-15 2021-10-15 Display screen refreshing frame rate adjusting method and device, processor, chip and terminal
CN202111205752.8A CN113870812B (en) 2021-10-15 2021-10-15 Display screen refreshing frame rate adjusting method and device, processor, chip and terminal
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