WO2023061096A1 - 显示屏刷新帧率的调整方法、装置、处理器、芯片和终端 - Google Patents

显示屏刷新帧率的调整方法、装置、处理器、芯片和终端 Download PDF

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Publication number
WO2023061096A1
WO2023061096A1 PCT/CN2022/116735 CN2022116735W WO2023061096A1 WO 2023061096 A1 WO2023061096 A1 WO 2023061096A1 CN 2022116735 W CN2022116735 W CN 2022116735W WO 2023061096 A1 WO2023061096 A1 WO 2023061096A1
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WIPO (PCT)
Prior art keywords
display screen
display
frame rate
refresh frame
state
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PCT/CN2022/116735
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English (en)
French (fr)
Inventor
王月文
钟柳和
高延凯
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2023061096A1 publication Critical patent/WO2023061096A1/zh

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36Control 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
    • G09G5/39Control of the bit-mapped memory
    • G09G5/393Arrangements for updating the contents of the bit-mapped memory
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02Details of power systems and of start or stop of display operation
    • G09G2330/021Power management, e.g. power saving
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application belongs to the field of display technology, and in particular relates to a method, device, processor, chip and terminal for adjusting the refresh frame rate of a display screen.
  • Embodiments of the present application provide a method, device, processor, chip, and 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 help reduce power consumption of the display screen.
  • the first aspect of the embodiment of the present application provides a method for adjusting the refresh frame rate of a display screen.
  • the adjustment method is applied to a terminal including a display screen, including:
  • the refresh frame rate of the display screen for image display is adjusted.
  • the second aspect of the embodiment of the present application provides an adjustment device for display refresh frame rate, the adjustment device is configured on a terminal including a display screen, and the adjustment device includes:
  • a monitoring unit is used to monitor the working status of the mobile industry processor interface
  • the adjustment unit is configured to adjust the refresh frame rate of the display screen for image display when the working state of the mobile industry processor interface changes.
  • the third aspect of the embodiment of the present application provides an application processor, the application processor is configured in a terminal including a display screen, and the application processor is used for:
  • a frequency reduction instruction is sent to the display driver chip of the display screen, and the frequency reduction instruction is used to instruct the display driver chip to reduce the Refresh frame rate for image display on the above screen.
  • the fourth aspect of the embodiment of the present application provides a display driver chip, the display driver chip is configured on the display screen of the terminal, and is used to drive the display screen of the terminal to display images, and the display driver chip is used for:
  • the refresh frame rate of the display screen for image display is adjusted.
  • a fifth aspect of the embodiment of the present application provides a display screen configured with the display driver chip described in the fourth aspect above.
  • a sixth aspect of the embodiments of the present application provides a terminal including a display screen, and the display screen of the terminal is configured with the display driver chip described in the fourth aspect above.
  • a seventh aspect of the embodiments of the present application provides a terminal including a display screen, where the terminal is configured with the application processor described in the third aspect above.
  • the eighth aspect of the embodiment of the present application provides a terminal including a display screen, the terminal includes an application processor, the display screen is configured with a display driver chip, and the application processor and the display driver chip are connected through the mobile industry
  • the processor interface is connected, and the terminal is used to implement the method for adjusting the refresh frame rate of the display screen in the first aspect above, or the terminal is configured with the device for adjusting the refresh frame rate of the display screen described in the second aspect above.
  • a ninth aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed, the steps of the method in the above-mentioned first aspect are implemented.
  • Figure 1 is a schematic diagram of the image display process under the AP-DDCI-Panel architecture
  • FIG. 2 is a schematic diagram of an implementation of AP instructing DDIC to adjust the refresh frequency according to the average frame rate in the related art
  • FIG. 3 is a schematic diagram of a first implementation flow of a method for adjusting a refresh frame rate of a display screen provided by an embodiment of the present application;
  • FIG. 4 is a schematic diagram of a first structure of a terminal provided in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the working state of MIPI provided by the embodiment of the present application.
  • FIG. 6 is a schematic diagram of a second implementation flow of the method for adjusting the refresh frame rate of the display screen provided by the embodiment of the present application;
  • Fig. 7 is a schematic diagram of the first adjustment of the refresh frame rate of the display screen provided by the embodiment of the present application.
  • FIG. 8 is a schematic diagram of a second adjustment of the refresh frame rate of the display screen provided by the embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a device for adjusting a refresh frame rate of a display screen provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a second structure of a terminal provided by an embodiment of the present application.
  • references to "one embodiment” or “some embodiments” or the like in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application.
  • appearances of the phrases “in one embodiment,” “in some embodiments,” “in other embodiments,” “in other embodiments,” etc. in various places in this specification are not necessarily All refer to the same embodiment, but mean “one or more but not all embodiments” unless specifically stated otherwise.
  • the terms “including”, “comprising”, “having” and variations thereof mean “including but not limited to”, unless specifically stated otherwise.
  • An embodiment of the present application provides a method for adjusting the refresh frame rate of a display screen, the adjustment method is applied to a terminal including a display screen, and includes: monitoring the working status of the mobile industry processor interface; changing the working status of the mobile industry processor interface , adjust the refresh frame rate of the display for image display.
  • adjusting the refresh frame rate of the display screen for image display includes: changing the working state of the mobile industry processor interface from the data sending state When entering the idle state, reduce the refresh frame rate of the display screen for image display.
  • the above adjustment method is applied to the application processor of the terminal, and when the working state of the mobile industry processor interface enters the idle state from the data sending state, the refresh frame rate of the display screen for image display is reduced. , including: when the working state of the mobile industry processor interface is about to enter the idle state from the data sending state, send a frequency reduction instruction to the display driver chip of the display screen, and the frequency reduction instruction is used to instruct the display driver chip to lower the frequency of the display screen for image display Refresh frame rate.
  • adjusting the refresh frame rate of the display screen for image display includes: entering from the idle state when the working state of the mobile industry processor interface In the data sending state, and the data sent by the mobile industry processor interface is image data, increase the refresh frame rate of the display screen for image display.
  • the above-mentioned adjustment method is applied to the application processor of the terminal, and the above-mentioned increasing the refresh frame rate of the display screen for image display includes: sending an up-frequency instruction to the display driver chip of the display screen, and up-frequency The instruction is used to instruct the display driver chip to increase the refresh frame rate of the display screen for image display.
  • the above-mentioned sending the up-conversion instruction to the display driver chip of the display screen specifically includes: sending the up-frequency instruction to the display driver chip of the display screen before sending the image data to the display driver chip.
  • the above adjustment method is applied to a display driver chip of a display screen.
  • the adjustment method above further includes: when the working state of the mobile industry processor interface enters the idle state from the data sending state, controlling the working circuit of the mobile industry processor interface to enter a low voltage state.
  • the adjustment method above further includes: when the display screen is powered on, sending an initialization command carrying a preset refresh frame rate range to the display driver chip of the display screen, and the initialization command instructs the display driver chip to Image refresh is performed in the first refresh frame rate range.
  • the embodiment of the present application also provides an adjustment device for display refresh frame rate.
  • the adjustment device is configured on a terminal including a display screen, and includes: a monitoring unit for monitoring the working status of the mobile industry processor interface; an adjustment unit for 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 embodiment of the present application also provides an application processor, the application processor is configured in a terminal including a display screen, and the application processor is used to: monitor the working status of the mobile industry processor interface; when the working status of the mobile industry processor interface is about to When entering the idle state from the data sending state, a frequency reduction instruction is sent to the display driver chip of the display screen, and the frequency reduction instruction is used to instruct the display driver chip to reduce the refresh frame rate of the display screen for image display.
  • the above-mentioned application processor is configured to: when the working state of the mobile industry processor interface enters the data sending state from the idle state, and the data sent by the mobile industry processor interface is image data, send The display driver chip sends an up-frequency instruction, and the up-frequency instruction is used to instruct the display driver chip to increase the refresh frame rate of the display screen for image display.
  • the above-mentioned application processor is configured to: before sending the image data to the display driver chip, send an up-frequency instruction to the display driver chip of the display screen.
  • the above-mentioned application processor is configured to: when the working state of the mobile industry processor interface enters the idle state from the data sending state, control the working circuit of the mobile industry processor interface to enter a low voltage state.
  • the above-mentioned application processor is configured to: when the display screen is powered on, send an initialization instruction carrying a preset refresh frame rate range to the display driver chip of the display screen, and the initialization instruction instructs the display driver chip according to Image refresh is performed in the first refresh frame rate range.
  • the embodiment of the present application also provides a display driver chip.
  • the display driver chip is configured on the display screen of the terminal, and is used to drive the display screen of the terminal to display images.
  • the display driver chip is also specifically used for: monitoring the interface of the mobile industry processor Working state: when the working state of the mobile industry processor interface changes, adjust the refresh frame rate of the display screen for image display.
  • the above-mentioned display driver chip is used to reduce the refresh frame rate of the display screen for image display when the working state of the mobile industry processor interface changes from the data sending state to the idle state.
  • the above-mentioned display driver chip is used to: increase the Refresh frame rate for image display on the display.
  • An embodiment of the present application further provides a display screen, the display screen is configured with the above-mentioned display driving chip.
  • An embodiment of the present application further provides a terminal including a display screen, and the display screen of the terminal is configured with the above-mentioned display driver chip.
  • An embodiment of the present application also provides a terminal including a display screen, and the terminal is configured with the above-mentioned application processor.
  • the embodiment of the present application also provides a terminal including a display screen, the terminal includes an application processor, the display screen is configured with a display driver chip, the application processor and the display driver chip are connected through a mobile industry processor interface, and the terminal is used for The method for adjusting the refresh frame rate of the display screen described above is implemented, or the terminal is equipped with the device for adjusting the refresh frame rate of the display screen described above.
  • the embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium.
  • a computer program is stored in the computer-readable storage medium.
  • the steps of the method for adjusting the refresh frame rate of the display screen are realized.
  • the method of the embodiment of the present application can be applied to various terminals, for example, a mobile phone, a tablet computer, a vehicle-mounted device, an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device, a notebook computer, a super mobile personal computer ( Ultra-mobile personal computer, UMPC), netbook, personal digital assistant (personal digital assistant, PDA) and other terminals that include a display screen, the embodiment of the present application does not impose any restrictions on the specific type of the terminal.
  • the display screen may be an Active-Matrix Organic Light-Emitting Diode (AMOLED) display screen.
  • AMOLED Active-Matrix Organic Light-Emitting Diode
  • AMOLED displays under the driving architecture of Application Processor (Application Processor, AP)-Display Driver Integrated Circuit (DDIC)-Display Panel (Panel), that is, under the driving architecture of AP-DDIC-Panel, such as As shown in Figure 1, the AP side first draws and renders layers through the application (Application, App), and then synthesizes the drawn layers through Surface Flinger to obtain image data, and then through the mobile industry processor interface (Mobile Industry Processor Interface, MIPI) sends image data to display (write) DDIC.
  • the DDIC stores the image data sent by the AP in the buffer (Buffer), and controls the Panel to refresh and display the image (Display) by scanning (reading) the image data in the Buffer.
  • the AP side In a high-refresh frame rate display scenario, the AP side generates image data at high frequency, and accordingly, the Panel side performs high-frequency image refresh according to the image data, thereby improving the fluency of the screen.
  • high frame rate is mainly used in a small number of fast sliding scenes such as desktop sliding and photo album browsing. fluency.
  • fast sliding takes a relatively small proportion of time in practical applications, and most usage scenarios are still static display, low-speed sliding, and low frame rate video playback scenarios.
  • the image rendering speed on the AP side decreases. If the Panel side still maintains a high refresh frame rate for image refresh (when the AP side does not send new image data, DDIC will control the Panel based on the latest image data received) Repeatedly displaying a single frame image) will not improve the smoothness of the picture, but will increase the power consumption of the display screen.
  • the AP side uses software to count the number of frames of image data sent by the AP to the DDIC within a period of time, so as to determine the average frame rate within the statistical period according to the number of frames, and then based on the The average frame rate sends a refresh frame rate adjustment instruction to the DDIC, so that the DDIC adjusts the refresh frame rate based on the instruction.
  • the statistical period is usually set longer for power consumption considerations, such as 1s, that is, the number of frames of image data sent by the AP within 1s is counted, so as to determine the number of frames in 1s. average frame rate.
  • the AP counts that 30 frames of image data have been sent in the last 1 second, so that the average frame rate is determined to be 30 fps.
  • the average frame rate can only reflect the average transmission rate of image data within the statistical period, and cannot reflect the real-time image data transmission of the AP. Especially in the case of a long statistical period, the average frame rate calculated by the AP has Obvious lag and poor accuracy can easily cause improper adjustment of the subsequent refresh frame rate, thus affecting the display effect.
  • the AP sent 30 frames of image data in the first 500 ms (DDIC scans according to the new image data sent by the AP in the first 500 ms), but did not send image data in the next 500 ms ( DDIC performs repeated scans based on the latest frame of image data within the last 500ms), AP determines the average frame rate to be 30fps based on the total number of frames of image data sent within the statistical period of 30 frames, and cannot recognize that the picture in the last 500ms is in a static state. Further, the AP instructs the DDIC to adjust the refresh frame rate to 30 Hz based on the average frame rate of 30 fps.
  • DDIC could have set a lower refresh frame rate to reduce power consumption, but in reality, DDIC still maintains a high refresh frame rate, resulting in increased display power consumption .
  • the AP side in order to reduce the power consumption of the high refresh frame rate display screen, the AP side also determines the refresh frame rate corresponding to the current display scene by identifying the type of the application program, and then sends the refresh frame to the DDIC based on the refresh frame rate Rate adjustment command, so that DDIC can adjust the refresh frame rate based on the command.
  • the AP side determines that the display content of the current display scene belongs to high-speed update, medium-speed update, low-speed update or static by identifying the type corresponding to the application as video, webpage or social.
  • the type corresponding to the application can only roughly reflect the display type of the current scene, and cannot provide real-time feedback on the refresh rate required by the current display screen. Therefore, the refresh rate of the display screen cannot be adjusted in real time.
  • the embodiment of the present application provides a display refresh frame rate adjustment method, device, processor, chip and terminal, by monitoring the working state of MIPI, and adjusting the display when the working state of MIPI changes.
  • the refresh frame rate of the screen for image display so that the refresh frame rate of the display screen can be dynamically adjusted according to the working status of MIPI, therefore, it has higher real-time performance, and can solve the problem that the refresh rate of the display screen cannot be adjusted in real time in related technologies
  • the present application dynamically adjusts the refresh frame rate of the display screen in real time according to the working status of MIPI, which can also avoid the problem of high power consumption of the display screen due to the fixed use of a high refresh frame rate for display, which helps to reduce the display screen power consumption.
  • the application monitors the working state of MIPI to adjust the refresh frame rate of the display screen with higher real-time performance, thereby ensuring Further save power consumption in the case of smooth display.
  • FIG. 3 shows a schematic flowchart of a first implementation of a method for adjusting a refresh frame rate of a display screen provided by an embodiment of the present application.
  • the method for adjusting the refresh frame rate of the display screen may be executed by a terminal including a display screen, and includes steps 301 to 302 as follows.
  • Step 301 monitor the working status of MIPI.
  • MIPI is an interface standard for mobile devices and consumer electronic products formulated by the MIPI Alliance, which enables the interfaces of these devices (for example, terminals including display screens in this application) to increase bandwidth and improve performance. , while reducing cost, complexity, power consumption and electromagnetic interference, and it is not a single interface or protocol, but includes a set of protocols and standards that can meet the unique requirements of various subsystems.
  • FIG. 4 it is a schematic diagram of a first structure of a terminal provided in an embodiment of the present application.
  • the terminal may include an application processor (AP) 41 and a display screen, and the display screen includes a display driver chip (DDIC) 42 And the display panel 43, the display driver chip 42 is used to drive the display panel 43 of the display screen to display images, and the AP and the DDIC can communicate through the Mobile Industry Processor Interface (MIPI).
  • AP application processor
  • DDIC display driver chip
  • the working status of MIPI can be monitored by the AP side, it can also be monitored by the DDIC. Therefore, in some embodiments of the present application, the working status of the MIPI can be monitored based on the AP. In other embodiments of the present application, the working status of MIPI may be monitored based on DDIC.
  • Step 302 when the MIPI working state changes, adjust the refresh frame rate of the display screen for image display.
  • the MIPI working state may include a data sending state and an idle state (idle mode).
  • the data sending state may include a data sending in progress state and a data sending ready state.
  • the data transmission progress state refers to the state of data transmission in progress
  • the data transmission preparation state refers to the preparation state of data transmission, that is, the state of data transmission can be performed immediately when data transmission is required.
  • the data transmission preparation state usually means that MIPI has not entered the idle state after transmitting a frame of data. In this state, MIPI is in need of data transmission, and data transmission can be performed immediately without waking up.
  • the idle state means that there is no data to be sent, and the MIPI is in a state of not sending data.
  • the MIPI needs to be woken up first. After the MIPI is woken up, It enters the state of data transmission.
  • MIPI completes the data transmission
  • MIPI enters the data transmission preparation state, that is, enters the data transmission preparation state from the data transmission progress state.
  • the preset standby time for example, 60ms
  • MIPI enters the idle state, that is, enter the idle state from the data transmission preparation state.
  • MIPI After MIPI enters the idle state, if the AP needs to send data to the DDIC, it needs to send a wake-up command to MIPI first to wake up MIPI, so that MIPI enters the data sending state from the idle state, and in the data sending state, through MIPI to the DDIC sends data, and when MIPI finishes sending data, it re-enters the data sending preparation state.
  • MIPI The whole working process of MIPI is: data transmission in progress state-data transmission preparation state-idle state-data transmission in progress state, and the cycle continues.
  • MIPI does not transmit data in the data transmission preparation state, it is in a state where data transmission can be performed immediately when data is needed. Therefore, usually, the data transmission preparation state and the data transmission progress state can be combined into the data transmission state.
  • the change of the working state of MIPI in the above step 302 can include the following two forms: first, the working state of MIPI enters the idle state from the data sending state ; Second, the working state of MIPI enters the data sending state from the idle state.
  • the refresh frame rate of the display screen for image display can be adjusted, that is, when the working state of MIPI is in the idle state, the display screen can be lowered.
  • the refresh frame rate for image display keeps the refresh frame rate of the display screen at a low refresh frame rate, and after the MIPI working state enters the data sending state from the idle state, for example, after the AP sends image data to the DDIC, Since the DDIC will receive the image data at this time, after receiving the image data, the DDIC can automatically increase the refresh frame rate of the display for image display, without the need to monitor whether the working state of MIPI enters the data from the idle state. send status.
  • the above-mentioned step 301 can only monitor whether the working state of MIPI enters the idle state from the data sending state, and does not monitor whether the working state of the MIPI enters the data sending state from the idle state
  • the above step 302 may refer to: when the working state of MIPI enters the idle state from the data sending state, adjusting the refresh frame rate of the display screen for image display.
  • the refresh frame rate of the display screen for image display is reduced, so that when the AP does not send data to the DDIC, the refresh frame rate of the display screen is actively reduced, thereby reducing the Display power consumption.
  • the DDIC can automatically increase the refresh frame rate of the display for image display after receiving the image data. That is, there is no need to monitor whether the working state of MIPI enters the idle state from the data sending state.
  • the above-mentioned step 301 can only monitor whether the working state of MIPI enters the data transmission state from the idle state, and does not monitor whether the working state of the MIPI enters the idle state from the data transmission state
  • the above step 302 may refer to: adjusting the refresh frame rate of the display screen for image display when it is detected that the working state of the MIPI enters the data sending state from the idle state.
  • the refresh frame rate of the display screen for image display is increased.
  • the working state of MIPI enters the data sending state from the idle state, it is not necessarily because the AP needs to send image data to the DDIC, but it may be that the AP needs to send the screen display control command to the DDIC, for example, to control the display voltage of the display screen Therefore, optionally, in some embodiments of the present application, when it is detected that the working state of MIPI enters the data transmission state from the idle state, and the data sent by MIPI is image data, increase the Refresh frame rate for image display on the display.
  • the refresh frame rate of the display screen for image display is increased.
  • the DDIC it is not necessary for the DDIC to automatically increase the refresh frame rate of the display screen for image display after receiving the image data, and it is also unnecessary to use a low refresh frame rate for image display by default first, and When it is detected that the working state of MIPI enters the data sending state from the idle state, the refresh frame rate of the display screen for image display is increased; instead, the refresh frame rate of the display screen for image display is adjusted entirely based on the working state of MIPI.
  • the above step 301 may refer to monitoring whether the working state of MIPI enters the data transmission state from the idle state, and monitors whether the working state of the MIPI enters the idle state from the data transmission state for monitoring
  • the above step 302 may refer to: when the MIPI working state enters the idle state from the data sending state, adjust the refresh frame rate of the display screen for image display, and, when the MIPI working state enters the data sending state from the idle state, Also adjust the refresh frame rate of the display for image display.
  • the refresh frame rate of the display screen for image display is reduced; Refresh frame rate of image display.
  • MIPI is a physical layer interface implemented based on hardware
  • its working state is determined by hardware logic, and the change of its working state is real-time. Therefore, this application monitors the working state of the mobile industry processor interface
  • the adjustment of the refresh frame rate of the display screen has higher real-time performance, thereby further saving power consumption while ensuring smooth display.
  • This application monitors the working state of the mobile industry processor interface, and when the working state of the mobile industry processor interface changes, adjusts the refresh frame rate of the display screen for image display, so that the refresh frame rate of the display screen can be processed according to the mobile industry
  • the working state of the device interface can be dynamically adjusted. Therefore, it can avoid the problem of high power consumption of the display screen caused by fixedly using a high refresh frame rate for display, which helps to reduce the power consumption of the display screen.
  • the software driver layer of the AP since the working status of MIPI is controlled by the software driver layer of the AP, the software driver layer of the AP itself needs to monitor the working status of MIPI in real time. Therefore, the working status of MIPI is monitored at the AP side, and Dynamically adjusting the refresh frame rate of the display screen based on the working state of MIPI does not require additional power consumption, thus further reducing the power consumption of the display screen.
  • FIG. 6 it is a schematic flowchart of a second realization flow of a method for adjusting the display refresh frame rate provided by the embodiment of the present application.
  • the method for adjusting the display refresh frame rate is executed by the AP of the terminal, and specifically, it may be It is executed by the device for adjusting the refresh frame rate of the display screen configured on the AP, including the following steps 601 to 603.
  • step 601 the terminal-based AP monitors the working status of MIPI.
  • MIPI when MIPI is about to enter the idle state from the data sending state, it will send instruction data to the AP that it is about to enter the idle state. Therefore, the AP can monitor in real time whether the working state of MIPI enters the idle state from the data sending state.
  • the AP needs to send data to the DDIC, and then send a wake-up command to MIPI, so that MIPI enters the data transmission state from the idle state, so the AP can also monitor MIPI in real time. Whether the working state of the device enters the data sending state from the idle state.
  • Step 602 when it is detected that the working state of the MIPI is about to enter the idle state from the data sending state, send a frequency reduction instruction to the DDIC of the display screen.
  • the AP when the AP detects that the working state of the MIPI is about to enter the idle state from the data sending state, it can generate a down-frequency instruction, and send the instruction to the display screen through MIPI.
  • DDIC sends the frequency reduction command, and MIPI enters the idle state after sending the frequency reduction command.
  • the MIPI when the MIPI is about to enter the idle state from the data sending state, it will send instruction data to the AP that it is about to enter the idle state. At this time, the MIPI is still in the data sending state. Therefore, the frequency reduction instruction can be sent to the DDIC.
  • the frequency reduction instruction is used to instruct the DDIC to reduce the refresh frame rate of the display screen for image display.
  • the DDIC may be preset with different refresh frame rate levels, and the frequency reduction instruction may be used to instruct the DDIC to lower the refresh frame rate level by one level.
  • the frequency reduction instruction may be used to instruct the DDIC to lower the refresh frame rate level by one level. For example, when five refresh frame rate levels are set, from high to low, they are 120Hz, 90Hz, 60Hz, 30Hz, and 10Hz, and if the highest refresh frame rate of the current DDIC is 120Hz, the After the command, it is determined that the maximum refresh frame rate needs to be reduced to 90Hz; if the frequency reduction command from the AP is received again, it is determined that the maximum refresh frame rate needs to be reduced to 60Hz.
  • the frequency reduction instruction is used to instruct the DDIC to reduce the maximum refresh frame rate to a specified refresh frame rate.
  • the down-frequency command is used to instruct DDIC to reduce the current maximum refresh frame rate from 120 Hz to 10 Hz, so that after MIPI enters the idle state, DDIC displays images at a refresh frame rate of 10 Hz.
  • the above specified refresh frame rate may also be other frame rates, which are not limited here.
  • the above specified refresh frame rate may also be 20 Hz, 1 Hz and other refresh frame rates.
  • Step 603 when the working state of the MIPI enters the data sending state from the idle state, and the data sent by the MIPI is image data, increase the refresh frame rate of the display screen for image display.
  • the AP can monitor in real time whether the MIPI's working state enters the data transmission state from the idle state.
  • the AP sends a wake-up command to the MIPI to wake up the MIPI, indicating that the AP needs to send data to the DDIC
  • the data may be image data, or command data such as control commands, for example, control commands for controlling the display voltage of the display screen, etc. etc.
  • the refresh frame rate of the display screen for image display can be increased only when it is detected that the working state of MIPI enters the data sending state from the idle state, and the data sent by MIPI is image data.
  • the AP when the AP monitors that the working state of MIPI enters the data sending state from the idle state, and the data sent by MIPI is image data, the AP can generate an up-frequency instruction, and pass the MIPI Send up frequency command to DDIC.
  • the up-frequency instruction is used to instruct the DDIC to increase the refresh frame rate of the display screen for image display.
  • the DDIC may be preset with different refresh frame rate levels, and the above frequency up instruction may be used to instruct the DDIC to increase the refresh frame rate level by one level.
  • the above frequency up instruction may be used to instruct the DDIC to increase the refresh frame rate level by one level. For example, when five refresh frame rate levels are set, from high to low, they are 120Hz, 90Hz, 60Hz, 30Hz, and 10Hz, and if the highest refresh frame rate of the current DDIC is 10Hz, the After the instruction, it is determined that the maximum refresh frame rate needs to be increased to 30Hz; if the frequency up command from the AP is received again, it is determined that the maximum refresh frame rate needs to be increased to 60Hz.
  • the above frequency up instruction may also be used to instruct the DDIC to perform automatic frequency conversion within a certain refresh frame rate range.
  • the up-frequency command is used to instruct the DDIC to increase the current maximum refresh frame rate from 10Hz to 30Hz, so that after the MIPI enters the data sending state, the DDIC displays images at a refresh frame rate of 30Hz.
  • the working status of MIPI is monitored through the AP, the current display scene is identified, and when the working status of MIPI changes, that is, when the current display scene changes, the display screen is increased or lowered for image display.
  • Refresh frame rate so that the refresh frame rate of the display screen can be dynamically adjusted according to the working status of 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 fixed use of an excessively high refresh frame rate
  • the power consumption of the display screen is relatively large. Thus, it can contribute to reducing the power consumption of the display screen.
  • the working state of MIPI is determined by hardware logic, the change of its working state is real-time, and the software driver layer of the AP itself needs to monitor the working state of MIPI in real time. Therefore, monitoring the working state of MIPI and based on The working state of MIPI dynamically adjusts the refresh frame rate of DDIC to have higher real-time performance, and will not increase additional power consumption, so the power consumption of the display screen can be further reduced.
  • the DDIC can adopt dynamic frequency conversion technology to realize automatic frequency conversion within the frequency conversion range.
  • the DDIC can realize dynamic frequency conversion within the frequency conversion range of 1-120Hz.
  • the AP may first send an initialization command 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 the preset refresh frame rate range, that is, to instruct the DDIC to perform automatic frequency conversion within the preset refresh frame rate range.
  • the preset refresh frame rate ranges from 30 Hz to 120 Hz.
  • the DDIC when receiving the image sent by the AP, it can perform image processing at the upper limit of the preset refresh frame rate range (that is, the highest refresh frame rate). scan, and when no new image is received, image scanning is performed at the lower limit of the preset refresh frame rate range (ie, the lowest refresh frame rate).
  • the refresh frame rate threshold for example, when the refresh frame rate threshold is 30Hz, in the process of dropping from the highest refresh frame rate to the minimum refresh frame rate, the preset number of high After the frame rate is refreshed, the image is refreshed at the lowest refresh frame rate.
  • the DDIC first scans the image A sent by the AP at a refresh frame rate of 120Hz, and then scans the image B sent by the AP at a refresh frame rate of 120Hz. After that, the AP does not send image data to the DDIC.
  • the problem of screen flickering occurs when the frequency is reduced to 30Hz.
  • the preset number of times can be maintained at a refresh frame rate of 120Hz (one time in the picture)
  • the minimum refresh frame rate is reduced to 30Hz to rescan image B until MIPI is 7.8.3
  • MIPI sends a down-frequency command to DDIC within the eighth 8.3ms and enters the idle state.
  • DDIC can reduce the refresh frame rate to the specified refresh frame rate according to the frequency reduction command received from MIPI. For example, as shown in Figure 7, after MIPI enters the idle state, DDIC can reduce the refresh frame rate to 10Hz , and the image is refreshed repeatedly at 10Hz.
  • the AP when the AP monitors that the MIPI enters the data sending state from the idle state, it can send an up-frequency instruction to the DDIC through the MIPI before sending the image data to the DDIC, so as to update the refresh frame rate of the display screen in real time.
  • the AP when the AP monitors that the MIPI enters the data transmission state from the idle state, it can send an up-frequency command to the DDIC through MIPI before sending the image C to the DDIC, instructing the DDIC to refresh the frame rate between 30Hz and 120Hz Automatic frequency conversion within the range, and then send image C to DDIC.
  • the image scan can be performed at the upper limit of the refresh frame rate range (that is, the highest refresh frame rate), and when no new image is received , image scanning is performed at the lower limit (ie, the lowest refresh frame rate) in the refresh frame rate range.
  • the minimum 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 dropping from the highest refresh frame rate to the minimum refresh frame rate, the preset number of high After the frame rate is refreshed, the image is refreshed at the lowest refresh frame rate to avoid smearing.
  • the AP does not send image data to the DDIC.
  • the lowest refresh frame rate for image scanning, however, in order to prevent smearing from 10Hz in idle state to 30Hz, you can maintain the preset number of times with a refresh frame rate of 120Hz (once in the figure), and then Increase the frequency to the minimum refresh frame rate of 30Hz to rescan image C.
  • the AP may control the working circuit of MIPI to enter a low voltage state when detecting that the working state of MIPI changes from the data sending state to the idle state.
  • the working state of MIPI when the working state of MIPI enters the idle state from the data sending state, it only reduces the power consumption caused by data sending, and does not make the entire working circuit enter a low-voltage state. Therefore, in order to further reduce the display power consumption of the terminal, It can control the working circuit of MIPI to enter the low voltage state. Wherein, when the MIPI is in a low voltage state, its working voltage is lower than that in the data sending state.
  • the working voltage of MIPI in the data sending state is 5V
  • the working voltage in the low voltage state is 0.5V
  • the above-mentioned embodiment shown in Figure 6 is implemented based on the AP of the terminal.
  • the DDIC based on the display screen can also be implemented through implemented in hardware.
  • the DDIC based on the display screen monitors the working status of MIPI, and when the working status of MIPI changes, it adjusts the refresh frame rate of the display screen for image display.
  • it can save up-conversion instructions
  • the process of sending the down-frequency command that is, save the step of sending the down-frequency command to the DDIC of the display screen in step 602 above, and in the specific implementation of the above-mentioned step 603, send the up-frequency command to the DDIC to instruct the DDIC to increase the display screen for image
  • the displayed steps of refreshing the frame rate, and other steps are similar to the implementation of the terminal-based AP, and will not be repeated here.
  • FIG. 9 shows a schematic structural diagram of an adjustment device 900 for display refresh frame rate provided by an embodiment of the present application.
  • the adjustment device is configured on a terminal including a display screen and includes a monitoring unit 901 and an adjustment unit 902 .
  • the monitoring unit 901 is used to monitor the working status of the mobile industry processor interface
  • the adjustment unit 902 is configured to adjust the refresh frame rate of the display screen for image display 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
  • the dynamic adjustment of the working state of the processor interface of the mobile industry it can avoid the problem of high refresh frame rate for display and the problem of large power consumption of the display screen, which helps to reduce the power consumption of the display screen.
  • the application since the working state of the mobile industry processor interface is determined by hardware logic, the change of its working state is real-time. Therefore, the application has a higher effect of adjusting the refresh frame rate of the display screen by monitoring the working state of the mobile industry processor interface. real-time.
  • the adjusting unit is configured to: reduce the refresh frame rate of the display screen for image display when the working state of the mobile industry processor interface changes from the data sending state to the idle state.
  • the adjustment device is configured in the application processor AP of the terminal; the adjustment unit is used to detect that the working state of the mobile industry processor interface is about to enter the idle state from the data sending state and sending a down-frequency command to the display driver chip of the display screen, where the down-frequency command is used to instruct the display drive chip to reduce the refresh frame rate of the display screen for image display.
  • the adjustment unit is used to:
  • the adjustment device is configured in the application processor AP of the terminal;
  • the adjustment unit is used to send an upscaling instruction to the display driver chip of the display screen when the working state of the mobile industry processor interface enters the data sending state from the idle state, and the data sent by the mobile industry processor interface is image data, and the upscaling The instruction is used to instruct the display driver chip to increase the refresh frame rate of the display screen for image display.
  • the adjustment unit is used to:
  • an up-frequency instruction is sent to the display driver chip of the display screen.
  • the adjusting device is configured in a display driver chip of the terminal.
  • the adjusting device further includes a decompression unit for:
  • the adjustment device further includes an initialization unit, configured to:
  • an initialization command carrying the first refresh frame rate range is sent to the display drive chip of the display screen, and the initialization command is used to instruct the display drive chip to perform image refresh according to the first refresh frame rate range.
  • an embodiment of the present application further provides an application processor, the application processor is configured in a terminal including a display screen, and is used for:
  • the frequency reduction command is used to instruct the display driver chip to reduce the refresh frame rate of the display screen for image display .
  • the above-mentioned application processor is used to:
  • an up-frequency instruction is sent to the display driver chip of the display screen, and the up-frequency instruction is used to indicate the display
  • the driver chip increases the refresh frame rate of the display screen for image display.
  • the above-mentioned application processor is used to:
  • an up-frequency instruction is sent to the display driver chip of the display screen.
  • the above-mentioned application processor is used to:
  • the above-mentioned application processor is used to:
  • an initialization command carrying a preset refresh frame rate range is sent to the display drive chip of the display screen, and the initialization command instructs the display drive chip to perform image refresh according to the first refresh frame rate range.
  • an embodiment of the present application further provides a display driver chip, the display driver chip is configured on the display screen of the terminal, and is used to drive the display screen of the terminal to display images, and the display driver chip is used for:
  • the refresh frame rate of the display screen for image display is adjusted.
  • the display driver chip is used for:
  • the refresh frame rate of the display screen for image display is reduced.
  • the display driver chip is used for: when the working state of the mobile industry processor interface enters the data sending state from the idle state, and the data sent by the mobile industry processor interface is image data, increase the refresh frame rate of the display screen for image display.
  • an embodiment of the present application further provides a display screen configured with the above-mentioned display driver chip.
  • an embodiment of the present application further provides a terminal including a display screen, where the terminal is configured with the above-mentioned application processor.
  • an embodiment of the present application further provides a terminal including a display screen, and the display screen of the terminal is configured with the above-mentioned display driver chip.
  • the embodiment of the present application also provides a terminal including a display screen, the terminal includes an application processor 111, and the display screen 113 includes a display driver chip (DDIC) 1131 and a display panel 1132, and the application
  • the processor 111 and the display driver chip 1131 are connected through the 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 the above-mentioned Figures 1-8, or the terminal is configured with the above-mentioned Figure 9
  • the display refresh frame rate adjustment device shown.
  • the method for adjusting the refresh frame rate of the display screen can be implemented, so that the refresh frame rate of the display screen 113 can be dynamically adjusted according to the working status of MIPI, thus avoiding fixed Using a high refresh frame rate for display will cause a problem of high power consumption of the display screen, which helps to reduce the power consumption of the display screen.
  • the application since the working state of the mobile industry processor interface is determined by hardware logic, the change of its working state is real-time. Therefore, the application has a higher effect of adjusting the refresh frame rate of the display screen by monitoring the working state of the mobile industry processor interface. real-time.
  • an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed, the steps of the method for adjusting the refresh frame rate of each display screen described above are implemented.
  • the disclosed device/user terminal and method may be implemented in other ways.
  • the device/user terminal embodiments described above are only illustrative, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components May be combined or may be integrated into another system, or some features may be omitted, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • a unit described as a separate component may or may not be physically separated, and a component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • an integrated module/unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the present application realizes all or part of the processes in the methods of the above embodiments, and can also be completed by instructing related hardware through computer programs, and the computer programs can be stored in a computer-readable storage medium.
  • the computer program includes computer program code
  • the computer program code may be in the form of source code, object code, executable file or some intermediate form.
  • the computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory (Read-Only Memory, ROM), random access Memory (Random Access Memory, RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained on computer readable media may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer readable media does not include Electrical carrier signals and telecommunication signals.

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Abstract

本申请属于显示技术领域,尤其涉及一种显示屏刷新帧率的调整方法、装置、处理器、芯片和终端,本申请实施例中,通过监测移动产业处理器接口的工作状态(301),并在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率(302),使得显示屏的刷新帧率可以根据移动产业处理器接口的工作状态动态调整,因而,可以避免固定使用高刷新帧率进行显示,出现显示屏的功耗较大的问题,有助于降低显示屏的功耗,同时,具有更高的实时性。

Description

显示屏刷新帧率的调整方法、装置、处理器、芯片和终端
本申请要求于2021年10月15日提交中国专利局、申请号为202111205752.8、申请名称为“显示屏刷新帧率的调整方法、装置、处理器、芯片和终端”的中国专利申请的优先权,其全部内容通过引用结合到本申请中。
技术领域
本申请属于显示技术领域,尤其涉及一种显示屏刷新帧率的调整方法、装置、处理器、芯片和终端。
背景技术
随着显示屏技术的不断发展,越来越多能够支持高刷新帧率进行画面显示的显示屏应运而生。
然而,采用固定的高刷新帧率显示画面,虽然能够提高画面的流畅度,但同时也存在显示屏功耗较大的问题。
发明内容
本申请实施例提供一种显示屏刷新帧率的调整方法、装置、处理器、芯片和终端,可以实现对显示屏进行刷新帧率的调整,有助于降低显示屏的功耗。
本申请实施例第一方面提供一种显示屏刷新帧率的调整方法,该调整方法应用于包含显示屏的终端,包括:
监测移动产业处理器接口的工作状态;
在所述移动产业处理器接口的工作状态发生变化时,调整所述显示屏进行图像显示的刷新帧率。
本申请实施例第二方面提供一种显示屏刷新帧率的调整装置,所述调整装置配置于包含显示屏的终端,所述调整装置包括:
监测单元,用于监测移动产业处理器接口的工作状态;
调整单元,用于在所述移动产业处理器接口的工作状态发生变化时,调整所述显示屏进行图像显示的刷新帧率。
本申请实施例第三方面提供一种应用处理器,所述应用处理器配置于包含显示屏的终端,所述应用处理器用于:
监测移动产业处理器接口的工作状态;
在所述移动产业处理器接口的工作状态即将从数据发送状态进入空闲状态时,向所述显示屏的显示驱动芯片发送降频指令,所述降频指令用于指示所述显示驱动芯片降低所述显示屏进行图像显示的刷新帧率。
本申请实施例第四方面提供一种显示驱动芯片,所述显示驱动芯片配置于终端的显示屏,用于驱动所述终端的显示屏进行图像显示,所述显示驱动芯片用于:
监测移动产业处理器接口的工作状态;
在所述移动产业处理器接口的工作状态发生变化时,调整所述显示屏进行图像显示的刷新帧率。
本申请实施例第五方面提供一种显示屏,所述显示屏配置有上述第四方面所述的显示驱动芯片。
本申请实施例第六方面提供一种包含显示屏的终端,所述终端的显示屏配置有上述第四方面所述显示驱动芯片。
本申请实施例第七方面提供一种包含显示屏的终端,所述终端配置有上述第三方面所述的应用处理器。
本申请实施例第八方面提供一种包含显示屏的终端,所述终端包括应用处理器,所述显示屏配置有显示驱动芯片,所述应用处理器与所述显示驱动芯片之间通过移动产业处理 器接口连接,所述终端用于实现上述第一方面的显示屏刷新帧率的调整方法,或者,所述终端配置有上述第二方面所述的显示屏刷新帧率的调整装置。
本申请实施例第九方面提供一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序,所述计算机程序被执行时实现上述第一方面的方法的步骤。
附图说明
为了更清楚地说明本申请实施例的显示屏刷新帧率的调整方法,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本申请的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。
图1是AP-DDCI-Panel架构下图像显示过程的示意图;
图2是相关技术中AP根据平均帧率指示DDIC调整刷新频率的实施示意图;
图3是本申请实施例提供的显示屏刷新帧率的调整方法的第一实现流程示意图;
图4是本申请实施例提供的终端的第一结构示意图;
图5是本申请实施例提供的MIPI的工作状态示意图;
图6是本申请实施例提供的显示屏刷新帧率的调整方法的第二实现流程示意图;
图7是本申请实施例提供的显示屏刷新帧率的第一调整示意图;
图8是本申请实施例提供的显示屏刷新帧率的第二调整示意图;
图9是本申请实施例提供的显示屏刷新帧率的调整装置的结构示意图;
图10是本申请实施例提供的终端的第二结构示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本申请进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。
本文中的“和/或”仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,在本申请实施例的描述中,除非另有说明,“多个”是指两个或多于两个,“至少一个”、“一个或多个”是指一个、两个或两个以上。
在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此,在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例,而是意味着“一个或多个但不是所有的实施例”,除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”,除非是以其他方式另外特别强调。
本申请实施例提供一种显示屏刷新帧率的调整方法,该调整方法应用于包含显示屏的终端,包括:监测移动产业处理器接口的工作状态;在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率,包括:在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,降低显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述调整方法应用于终端的应用处理器,上述在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,降低显示屏进行图像显示的刷新帧率,包括:在移动产业处理器接口的工作状态即将从数据发送状态进入空闲状态时,向显示屏的显示驱动芯片发送降频指令,降频指令用于指示显示驱动芯片降低显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率,包括:在移动产业处理器接口的工作状态从空闲状态进 入数据发送状态,且移动产业处理器接口发送的数据为图像数据时,增大显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述调整方法应用于终端的应用处理器,上述增大显示屏进行图像显示的刷新帧率,包括:向显示屏的显示驱动芯片发送升频指令,升频指令用于指示显示驱动芯片增大显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述向显示屏的显示驱动芯片发送升频指令具体为:在将图像数据发送给显示驱动芯片之前,向显示屏的显示驱动芯片发送升频指令。
可选的,在一个实施例中,上述调整方法应用于显示屏的显示驱动芯片。
可选的,在一个实施例中,上述调整方法还包括:在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,控制移动产业处理器接口的工作电路进入低电压状态。
可选的,在一个实施例中,上述调整方法还包括:在显示屏上电启动时,向显示屏的显示驱动芯片发送携带预设刷新帧率范围的初始化指令,初始化指令指示显示驱动芯片根据第一刷新帧率范围进行图像刷新。
本申请实施例还提供一种显示屏刷新帧率的调整装置,该调整装置配置于包含显示屏的终端,包括:监测单元,用于监测移动产业处理器接口的工作状态;调整单元,用于在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率。
本申请实施例还提供一种应用处理器,该应用处理器配置于包含显示屏的终端,该应用处理器用于:监测移动产业处理器接口的工作状态;在移动产业处理器接口的工作状态即将从数据发送状态进入空闲状态时,向显示屏的显示驱动芯片发送降频指令,降频指令用于指示显示驱动芯片降低显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述应用处理器用于:在移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且移动产业处理器接口发送的数据为图像数据时,向显示屏的显示驱动芯片发送升频指令,升频指令用于指示显示驱动芯片增大显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述应用处理器用于:在将图像数据发送给显示驱动芯片之前,向显示屏的显示驱动芯片发送升频指令。
可选的,在一个实施例中,上述应用处理器用于:在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,控制移动产业处理器接口的工作电路进入低电压状态。
可选的,在一个实施例中,上述应用处理器用于:在显示屏上电启动时,向显示屏的显示驱动芯片发送携带预设刷新帧率范围的初始化指令,初始化指令指示显示驱动芯片根据第一刷新帧率范围进行图像刷新。
本申请实施例还提供一种显示驱动芯片,该显示驱动芯片配置于终端的显示屏,用于驱动终端的显示屏进行图像显示,该显示驱动芯片还具体用于:监测移动产业处理器接口的工作状态;在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述显示驱动芯片用于:在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,降低显示屏进行图像显示的刷新帧率。
可选的,在一个实施例中,上述显示驱动芯片用于:在移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且移动产业处理器接口发送的数据为图像数据时,增大显示屏进行图像显示的刷新帧率。
本申请实施例还提供一种显示屏,该显示屏配置有上述显示驱动芯片。
本申请实施例还提供一种包含显示屏的终端,该终端的显示屏配置有上述显示驱动芯片。
本申请实施例还提供一种包含显示屏的终端,该终端配置有上述应用处理器。
本申请实施例还提供一种包含显示屏的终端,该终端包括应用处理器,该显示屏配置有显示驱动芯片,应用处理器与显示驱动芯片之间通过移动产业处理器接口连接,终端用 于实现上述显示屏刷新帧率的调整方法,或者,终端配置有上述显示屏刷新帧率的调整装置。
本申请实施例还提供一种计算机可读存储介质,该计算机可读存储介质存储有计算机程序,该计算机程序被执行时实现上述显示屏刷新帧率的调整方法的步骤。
本申请实施例的方法可以应用于多种终端,例如,手机、平板电脑、车载设备、增强现实(augmented reality,AR)/虚拟现实(virtual reality,VR)设备、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer,UMPC)、上网本、个人数字助理(personal digital assistant,PDA)等包含显示屏的终端上,本申请实施例对终端的具体类型不作任何限制。另外,该显示屏可以为主动矩阵有机发光二极体(Active-Matrix Organic Light-Emitting Diode,AMOLED)显示屏。
对于AMOLED显示屏,在应用处理器(Application Processor,AP)-显示驱动芯片(Display Driver Integrated Circuit,DDIC)-显示面板(Panel)的驱动架构下,即,AP-DDIC-Panel驱动架构下,如图1所示,AP端首先通过应用程序(Application,App)进行图层绘制渲染,然后通过Surface Flinger对绘制得到的图层进行图层合成得到图像数据,进而通过移动产业处理器接口(Mobile Industry Processor Interface,MIPI)将图像数据送显(写入)DDIC。DDIC将AP送显的图像数据存储在缓存器(Buffer)中,并通过扫描(读取)Buffer中的图像数据,控制Panel进行图像刷新显示(Display)。在高刷新帧率显示场景下,AP端高频生成图像数据,相应的,Panel侧根据图像数据进行高频图像刷新,从而提高画面的流畅度。
在实际应用过程中,除了需要在高帧率游戏内实现高刷新帧率外,高帧率主要应用在桌面滑动、相册浏览等少量快速滑动场景,其目的是为了提高用户执行快速滑动操作时画面的流畅度。然而,快速滑动在实际应用中所占的时间比例较小,大多数使用场景仍旧是静态显示、低速滑动以及低帧率视频播放场景。在低帧率使用场景下,AP端的图像渲染速度降低,若Panel侧仍旧保持高刷新帧率进行图像刷新(当AP端未发送新的图像数据时,DDIC会根据最近收到的图像数据控制Panel进行单帧图像重复显示),并不会提升画面的流畅度,反而会增加显示屏的功耗。
相关技术中,为了降低高刷新帧率显示屏的功耗,AP端通过软件统计一段时间内AP向DDIC发送的图像数据的帧数,从而根据帧数确定统计时段内的平均帧率,进而基于平均帧率向DDIC发送刷新帧率调整指令,以便DDIC基于指令调整刷新帧率。
由于AP端执行软件逻辑时需要占用一定的处理资源,因此出于功耗层面的考虑,统计时段通常被设置较长,比如1s,即统计1s内AP发送图像数据的帧数,从而确定1s内的平均帧率。在一个示意性的例子中,AP统计到最近1s内发送了30帧图像数据,从而确定平均帧率为30fps。
然而,平均帧率仅能够反映出统计时段内图像数据的平均发送速率,并不能反映出AP实时的图像数据发送情况,尤其是在统计时段较长的情况下,AP计算得到的平均帧率存在明显的滞后性,且准确性较差,容易造成后续刷新帧率调整不当,从而影响显示效果。
示意性的,如图2所示,统计时段内,AP在前500ms发送了30帧图像数据(DDIC在前500ms内根据AP发送的新图像数据进行扫描),而在后500ms未发送图像数据(DDIC在后500ms内根据最近一帧图像数据进行重复扫描),AP基于统计时段内发送的图像数据总帧数30帧,确定平均帧率为30fps,无法识别出后500ms画面处于静止状态。进一步的,AP基于平均帧率30fps指示DDIC将刷新帧率调整为30Hz。然而,由于后500ms画面静止(即处于静态显示场景),因此DDIC本可以设置更低的刷新帧率以降低功耗,但实际情况下DDIC仍旧保持较高的刷新帧率,导致显示功耗增加。
另外,在相关技术中,为了降低高刷新帧率显示屏的功耗,AP端还通过识别应用程序的类型,确定当前显示场景对应的刷新帧率,进而基于该刷新帧率向DDIC发送刷新帧率调整指令,以便DDIC基于指令调整刷新帧率。
示例性的,AP端通过识别应用程序对应的类型为视频类、网页类或者社交类,进而确定当前显示场景的显示内容属于高速更新、中速更新、低速更新或者静止。
然而,应用程序对应的类型只能粗略性的反映当前场景的显示类型,并不能实时反馈当前显示画面要求的刷新速度,因此,无法实时调整显示屏的刷新速度。
基于上述技术问题,本申请实施例提供的一种显示屏刷新帧率的调整方法、装置、处理器、芯片和终端,通过监测MIPI的工作状态,并在MIPI的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率,使得显示屏的刷新帧率可以根据MIPI的工作状态动态调整,因而,具有更高的实时性,可以解决相关技术中,无法实时调整显示屏的刷新速度的问题,并且,本申请通过根据MIPI的工作状态实时动态调整显示屏的刷新帧率,还可以避免固定使用高刷新帧率进行显示,出现显示屏的功耗较大的问题,有助于降低显示屏的功耗。
具体的,由于MIPI的工作状态由硬件逻辑决定,其工作状态的变化是实时的,因此,本申请通过监测MIPI的工作状态进行显示屏刷新帧率的调整具有更高的实时性,从而在确保显示流畅的情况下进一步节省功耗。
为了更好的说明本申请的技术方案,下面通过具体实施例来进行说明。
示例性的,如图3示出了本申请实施例提供的一种显示屏刷新帧率的调整方法的第一实现流程示意图。该显示屏刷新帧率的调整方法可以由包含显示屏的终端执行,包括下述步骤301至步骤302。
步骤301,监测MIPI的工作状态。
本申请实施例中,MIPI是MIPI联盟制定的用于移动设备和消费类电子产品的接口标准,其能够使这些设备(例如,本申请包含显示屏的终端)的接口既能增加带宽、提高性能,同时又能降低成本、复杂度、功耗以及电磁干扰,并且,其并不是一个单一的接口或协议,而是包含了能够满足各种子系统独特的要求的一套协议和标准。
示例性的,如图4所示,为本申请实施例提供的终端的第一结构示意图,该终端可以包含应用处理器(AP)41和显示屏,该显示屏包括显示驱动芯片(DDIC)42和显示面板43,显示驱动芯片42用于驱动该显示屏的显示面板43进行图像显示,AP与DDIC可以通过移动产业处理器接口(MIPI)进行通信。
由于MIPI的工作状态可以由AP端监测得到,也可以由DDIC监测得到。因此,在本申请的一些实施例中,可以基于AP监测MIPI的工作状态。而在本申请的另一些实施例中,可以基于DDIC监测MIPI的工作状态。
步骤302,在MIPI的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,MIPI的工作状态可以包括数据发送状态和空闲状态(idle mode)。
可选的,在本申请的一些实施例中,数据发送状态可以包括数据发送进行状态和数据发送预备状态。
其中,数据发送进行状态是指正在进行数据发送的状态,数据发送预备状态是指数据发送的准备状态,即,需要进行数据发送,就可以立刻进行数据发送的状态。数据发送预备状态通常表示MIPI传送完一帧数据后,还没有进入空闲状态时所处的状态,在该状态下,MIPI处于需要进行数据发送,就可以立刻进行数据发送,无需进行唤醒。
本申请实施例中,空闲状态是指没有数据需要发送,MIPI处于不进行数据发送的状态,该状态下,当存在需要进行发送的数据时,需要先对MIPI进行唤醒,在MIPI被唤醒之后,才进入数据发送进行状态。
在一个应用场景中,如图5所示,当MIPI完成数据发送后,会进入数据发送预备状态,即,从数据发送进行状态进入数据发送预备状态。MIPI进入数据发送预备状态之后,当到达预设待机时长,例如,60ms时,若仍然没有数据需要发送,则会进入空闲状态,即,从数据发送预备状态进入空闲状态。MIPI进入空闲状态之后,若AP需要向DDIC进行数据 发送,则需要先向MIPI发送唤醒指令,对MIPI进行唤醒,使MIPI从空闲状态进入数据发送进行状态,在数据发送进行状态中,通过MIPI向DDIC进行数据发送,当MIPI完成数据发送后,再重新进入数据发送预备状态。
MIPI的整个工作过程为:数据发送进行状态-数据发送预备状态-空闲状态-数据发送进行状态,不断循环。
由于MIPI在数据发送预备状态虽然不进行数据发送,但是,处于需要进行数据就可以立刻进行数据发送的状态,因此,通常数据发送预备状态与数据发送进行状态可以合并为数据发送状态。
基于上述对MIPI的各种工作状态的描述,本申请实施例中,上述步骤302中的MIPI的工作状态变化可以包括以下两种形式:第一种,MIPI的工作状态从数据发送状态进入空闲状态;第二种,MIPI的工作状态从空闲状态进入数据发送状态。
由于在实际应用中,可以通过在监测到MIPI的工作状态从数据发送状态进入空闲状态时,调整显示屏进行图像显示的刷新帧率,即,在MIPI的工作状态处于空闲状态时,降低显示屏进行图像显示的刷新帧率,使得显示屏进行图像显示的刷新帧率保持在低刷新帧率,而在MIPI的工作状态从空闲状态进入数据发送状态之后,例如,AP向DDIC发送图像数据之后,由于此时DDIC会接收到图像数据,因此,可以由DDIC在接收到图像数据之后,自动增大显示屏进行图像显示的刷新帧率,而不需要基于监测MIPI的工作状态是否从空闲状态进入数据发送状态。
因此,可选的,在本申请的一些实施例中,上述步骤301可以只监测MIPI的工作状态是否从数据发送状态进入空闲状态,而不对MIPI的工作状态是否从空闲状态进入数据发送状态进行监测,相应的,上述步骤302可以是指:在MIPI的工作状态从数据发送状态进入空闲状态时,调整显示屏进行图像显示的刷新帧率。
例如,在监测到MIPI的工作状态从数据发送状态进入空闲状态时,降低显示屏进行图像显示的刷新帧率,以便在AP不向DDIC发送数据时,主动降低显示屏的刷新帧率,进而降低显示屏的功耗。而在MIPI的工作状态从数据发送状态进入空闲状态时,可以由DDIC接收到图像数据后,自动增大显示屏进行图像显示的刷新帧率。即,不需要监测MIPI的工作状态是否从数据发送状态进入空闲状态。
由于在实际应用中,还可以先使DDIC默认采用低刷新帧率进行图像显示,并在监测到MIPI的工作状态从空闲状态进入数据发送状态时,再增大显示屏进行图像显示的刷新帧率,以降低显示屏的功耗。
因此,可选的,在本申请的一些实施例中,上述步骤301可以只监测MIPI的工作状态是否从空闲状态进入数据发送状态,而不对MIPI的工作状态是否从数据发送状态进入空闲状态进行监测,相应的,上述步骤302可以是指:在监测到MIPI的工作状态从空闲状态进入数据发送状态时,调整显示屏进行图像显示的刷新帧率。
例如,当MIPI的工作状态从空闲状态进入数据发送状态时,增大显示屏进行图像显示的刷新帧率。
由于MIPI的工作状态从空闲状态进入数据发送状态时,并不一定是由于AP需要向DDIC发送图像数据,而有可能是AP需要向DDIC发送屏幕显示的控制指令,例如,控制显示屏的显示电压的控制指令等等,因此,可选的,在本申请的一些实施例中,可以在监测到MIPI的工作状态从空闲状态进入数据发送状态时,且MIPI发送的数据为图像数据时,增大显示屏进行图像显示的刷新帧率。
即,当MIPI的工作状态从空闲状态进入数据发送状态,并且,确认AP需要向DDIC发送的数据为图像显示数据时,才增大显示屏进行图像显示的刷新帧率。
另外,在一个应用场景中,可以不需要由DDIC接收到图像数据后,自动增大显示屏进行图像显示的刷新帧率,并且,也可以不需要先默认采用低刷新帧率进行图像显示,并在监测到MIPI的工作状态从空闲状态进入数据发送状态时,再增大显示屏进行图像显示的 刷新帧率;而是完全基于MIPI的工作状态调整显示屏进行图像显示的刷新帧率。
也就是说,在本申请的一些实施例中,上述步骤301可以是指监测MIPI的工作状态是否从空闲状态进入数据发送状态,以及监测MIPI的工作状态是否从数据发送状态进入空闲状态进行监测,相应的,上述步骤302可以是指:在MIPI的工作状态从数据发送状态进入空闲状态,调整显示屏进行图像显示的刷新帧率,并且,在MIPI的工作状态从空闲状态进入数据发送状态时,也调整显示屏进行图像显示的刷新帧率。
例如,当监测到MIPI的工作状态从数据发送状态进入空闲状态时,降低显示屏进行图像显示的刷新帧率,当监测到MIPI的工作状态从空闲状态进入数据发送状态时,增大显示屏进行图像显示的刷新帧率。
本申请实施例中,由于MIPI是基于硬件实现的物理层接口,其工作状态由硬件逻辑决定,并且,其工作状态的变化是实时的,因此,本申请通过监测移动产业处理器接口的工作状态进行显示屏刷新帧率的调整具有更高的实时性,从而在确保显示流畅的情况下进一步节省功耗。
本申请通过监测移动产业处理器接口的工作状态,并在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率,使得显示屏的刷新帧率可以根据移动产业处理器接口的工作状态动态调整,因而,可以避免固定使用高刷新帧率进行显示,出现显示屏的功耗较大的问题,有助于降低显示屏的功耗。
需要说明的是,由于MIPI的工作状态是由AP的软件驱动层进行控制,因此,AP的软件驱动层本身就需要实时地监测MIPI的工作状态,所以,在AP端监测MIPI的工作状态,并基于MIPI的工作状态动态调整显示屏的刷新帧率,可以不需要额外增加功耗,因而,可以进一步降低显示屏的功耗。
例如,如图6所示为本申请实施例提供的一种显示屏刷新帧率的调整方法的第二实现流程示意图,该显示屏刷新帧率的调整方法由终端的AP执行,并且,具体可以是由AP上配置的显示屏刷新帧率的调整装置执行,包括下述步骤601至步骤603。
步骤601,基于终端的AP监测MIPI的工作状态。
在实际应用中,当MIPI即将从数据发送状态进入空闲状态时,会向AP发送其即将进入空闲状态的指令数据,因此,AP可以实时监测到MIPI的工作状态是否从数据发送状态进入空闲状态。
另外,由于在MIPI从空闲状态进入数据发送状态的过程中,表示AP需要向DDIC发送数据,进而向MIPI发送唤醒指令,使得MIPI从空闲状态进入数据发送状态,因此,AP也可以实时监测到MIPI的工作状态是否从空闲状态进入数据发送状态。
步骤602,在监测到MIPI的工作状态即将从数据发送状态进入空闲状态时,向显示屏的DDIC发送降频指令。
可选的,如图7所示,在本申请的一些实施例中,当AP监测到MIPI的工作状态即将从数据发送状态进入空闲状态时,可以生成降频指令,并通过MIPI向显示屏的DDIC发送降频指令,MIPI在发送完降频指令后,进入空闲状态。
本申请实施例中,MIPI即将从数据发送状态进入空闲状态时,会向AP发送其即将进入空闲状态的指令数据,此时MIPI还处于数据发送状态,因而,可以将降频指令发送给DDIC。
其中,上述降频指令用于指示DDIC降低显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,DDIC可以预先设置有不同的刷新帧率级别,上述降频指令可以用于指示DDIC下调一级刷新帧率等级。例如,当设置有五级刷新帧率等级,由高到低分别为120Hz、90Hz、60Hz、30Hz和10Hz时,若当前DDIC的最高刷新帧率为120Hz,则在接收到AP下发的降频指令后,确定需要将最高刷新帧率降低至90Hz;若再次接收到AP下发的降频指令,则确定需要将最高刷新帧率降低至60Hz。
可选的,在本申请的一些实施例中,上述降频指令用于指示DDIC将最高刷新帧率下调至指定刷新帧率。
例如,如图7所示,该降频指令用于指示DDIC将当前最高刷新帧率由120Hz降低至10Hz,使得MIPI进入空闲状态后,DDIC以10Hz的刷新帧率进行图像显示。
需要说明的是,上述指定刷新帧率还可以为其他帧率,此处不做限制,例如,上述指定刷新帧率还可以为20Hz、1Hz等刷新帧率。
步骤603,在MIPI的工作状态从空闲状态进入数据发送状态,且MIPI发送的数据为图像数据时,增大显示屏进行图像显示的刷新帧率。
由于AP向MIPI发送唤醒指令之后,MIPI才会从空闲状态进入数据发送状态,因此,AP可以实时监测到MIPI的工作状态是否从空闲状态进入数据发送状态。
另外,AP向MIPI发送唤醒指令唤醒MIPI,表示AP需要向DDIC发送数据,并且,该数据有可能是图像数据,也有可能是控制指令等指令数据,例如,控制显示屏的显示电压的控制指令等等,而当AP向DDIC发送的数据是指令数据,而不是图像数据时,表示不需要增大显示屏进行图像显示的刷新帧率。因此,在本申请的一些实施例中,可以在监测到MIPI的工作状态从空闲状态进入数据发送状态,且MIPI发送的数据为图像数据时,才增大显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,当AP监测到MIPI的工作状态从空闲状态进入数据发送状态,且MIPI发送的数据为图像数据时,可以由AP生成升频指令,并通过MIPI向DDIC发送升频指令。
其中,该升频指令用于指示DDIC增大显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,DDIC可以预先设置有不同的刷新帧率级别,上述升频指令可以用于指示DDIC上调一级刷新帧率等级。例如,当设置有五级刷新帧率等级,由高到低分别为120Hz、90Hz、60Hz、30Hz和10Hz时,若当前DDIC的最高刷新帧率为10Hz,则在接收到AP下发的升频指令后,确定需要将最高刷新帧率增大至30Hz;若再次接收到AP下发的升频指令,则确定需要将最高刷新帧率增大至60Hz。
可选的,在本申请的一些实施例中,上述升频指令还可以用于指示DDIC在某个刷新帧率范围内进行自动变频。
例如,该升频指令用于指示DDIC将当前最高刷新帧率由10Hz增大至30Hz,使得MIPI进入数据发送状态后,DDIC以30Hz的刷新帧率进行图像显示。
本申请实施例中,通过AP监测MIPI的工作状态,识别当前的显示场景,并在MIPI的工作状态发生变化时,即,当前的显示场景发生变化时,增大或降低显示屏进行图像显示的刷新帧率,使得显示屏的刷新帧率可以根据MIPI的工作状态动态调整,即,显示屏的刷新帧率可以根据当前的显示场景的变化实现动态调整,以避免固定使用过高的刷新帧率进行显示,出现显示屏的功耗较大的问题。因而,可以有助于降低显示屏的功耗。
另外,由于MIPI的工作状态由硬件逻辑决定,因此,其工作状态的变化是实时的,并且,AP的软件驱动层本身就需要实时的监测MIPI的工作状态,因此,监测MIPI的工作状态并基于MIPI的工作状态动态调整DDIC的刷新帧率具有更高的实时性,并且,不会额外增加额外的功耗,因而,可以进一步降低显示屏的功耗。
在本申请的一些实施例中,DDIC可以采用动态变频技术实现在变频范围内进行自动变频。
例如,当显示屏的基础刷新帧率(Base Frame Rate)为120Hz(即最高刷新帧率),最低刷新帧率为1Hz时,则DDIC可以在1-120Hz变频范围内实现动态变频。
具体的,如图6所示,在本申请的一些实施例中,在显示屏上电启动时,AP可以先向DDIC发送携带预设刷新帧率范围的初始化指令。
其中,该初始化指令可以用于指示DDIC根据预设刷新帧率范围进行图像刷新,即, 指示DDIC在预设刷新帧率范围进行自动变频。
例如,该预设刷新帧率范围为30Hz~120Hz。
可选的,DDIC在预设刷新帧率范围30Hz~120Hz进行自动变频时,可以在接收到AP发送的图像时,以预设刷新帧率范围中的上限(即,最高刷新帧率)进行图像扫描,并在未接收到新的图像时,以预设刷新帧率范围中的下限(即,最低刷新帧率)进行图像扫描。
其中,当最低刷新帧率小于或等于刷新帧率阈值时,例如,该刷新帧率阈值为30Hz时,从最高刷新帧率降到最低刷新帧率的过程中,可以先保持预设次数的高帧率刷新之后,再降到最低刷新帧率进行图像刷新。
例如,如图7所示,DDIC先以120Hz的刷新帧率扫描AP发送的图像A,接着以120Hz刷新帧率扫描AP发送的图像B之后,AP没有向DDIC发送图像数据,为了防止从120Hz直接降频至30Hz出现屏幕闪烁的问题,可以以120Hz刷新帧率保持预设次数(图中保持了一次)之后,再降低至最低刷新帧率30Hz对图像B进行重新扫描,直至MIPI在7个8.3ms内没有进行图像数据发送之后,MIPI在第8个8.3ms内向DDIC发送了降频指令,并进入空闲状态。
此时,DDIC根据接收到的MIPI发送的降频指令,可以将刷新帧率降低至指定刷新帧率,例如,如图7所示,MIPI进入空闲状态后,DDIC可以将刷新帧率降低至10Hz,并以10Hz进行图像的重复刷新。
可选的,AP监测到MIPI从空闲状态进入数据发送状态时,可以在将图像数据发送给DDIC之前,通过MIPI向DDIC发送升频指令,以实时更新显示屏的刷新帧率。
例如,如图8所示,AP监测到MIPI从空闲状态进入数据发送状态时,可以在将图像C发送给DDIC之前,通过MIPI向DDIC发送升频指令,指示DDIC在30Hz~120Hz的刷新帧率范围内进行自动变频,然后,再将图像C发送给DDIC。
其中,在指示DDIC在30Hz~120Hz的刷新帧率范围内进行自动变频时,可以以刷新帧率范围中的上限(即,最高刷新帧率)进行图像扫描,并在未接收到新的图像时,以刷新帧率范围中的下限(即,最低刷新帧率)进行图像扫描。
其中,当最低刷新帧率小于或等于刷新帧率阈值时,例如,该刷新帧率阈值为30Hz时,从最高刷新帧率降到最低刷新帧率的过程中,可以先保持预设次数的高帧率刷新之后,再降到最低刷新帧率进行图像刷新,以避免出现拖影。
例如,如图8所示,DDIC先以120Hz的刷新帧率扫描AP发送的图像C之后,AP没有向DDIC发送图像数据,此时,本应降至预设刷新帧率范围中的下限(即,最低刷新帧率)进行图像扫描,但是,为了防止从空闲状态的10Hz升频到30Hz出现拖影的问题,可以以120Hz的刷新帧率保持预设次数(图中保持了一次)之后,再升频至最低刷新帧率30Hz对图像C进行重新扫描。
可选的,在本申请的一些实施例中,为了进一步降低终端的显示功耗,AP在监测到MIPI的工作状态从数据发送状态进入空闲状态时,可以控制MIPI的工作电路进入低电压状态。
具体的,由于MIPI的工作状态从数据发送状态进入空闲状态时,仅仅是减少了数据发送造成的功耗,并没有使整个工作电路进入低电压状态,因此,为了进一步降低终端的显示功耗,可以控制MIPI的工作电路进入低电压状态。其中,该MIPI在低电压状态时,其工作电压小于数据发送状态时的工作电压。
例如,MIPI在数据发送状态时的工作电压为5V,则在低电压状态时的工作电压为0.5V。
需要说明的是,上述图6所示的实施例为基于终端的AP实现的,在本申请实施例中,除了基于终端的AP通过软件的方式实现上述调整方法,还可以基于显示屏的DDIC通过硬件的方式实现。
即,基于显示屏的DDIC监测MIPI的工作状态,并在MIPI的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率,其与基于终端的AP实现方式相比,可以节省升 频指令与降频指令的发送过程,即,节省上述步骤602向显示屏的DDIC发送降频指令的步骤,以及上述步骤603具体实现中,向DDIC发送升频指令,以指示DDIC增大显示屏进行图像显示的刷新帧率的步骤,其余步骤均与基于终端的AP实现方式相似,此处不再赘述。
本申请中,对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本申请并不受所描述的动作顺序的限制,在本申请的一些实施例中,某些步骤可以采用其它顺序进行。
图9示出了本申请实施例提供的一种显示屏刷新帧率的调整装置900的结构示意图,调整装置配置于包含显示屏的终端,包括监测单元901和调整单元902。
监测单元901,用于监测移动产业处理器接口的工作状态;
调整单元902,用于在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率。
本申请实施例中,通过监测移动产业处理器接口的工作状态,并在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率,使得显示屏的刷新帧率可以根据移动产业处理器接口的工作状态动态调整,因而,可以避免固定使用高刷新帧率进行显示,出现显示屏的功耗较大的问题,有助于降低显示屏的功耗。
另外,由于移动产业处理器接口的工作状态由硬件逻辑决定,其工作状态的变化是实时的,因此,本申请通过监测移动产业处理器接口的工作状态进行显示屏刷新帧率的调整具有更高的实时性。
可选的,在本申请的一些实施例中,调整单元,用于:在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,降低显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,调整装置配置于终端的应用处理器AP中;调整单元,用于在监测到移动产业处理器接口的工作状态即将从数据发送状态进入空闲状态时,向显示屏的显示驱动芯片发送降频指令,降频指令用于指示显示驱动芯片降低显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,调整单元,用于:
在移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且移动产业处理器接口发送的数据为图像数据时,增大显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,调整装置配置于终端的应用处理器AP中;
调整单元,用于在移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且移动产业处理器接口发送的数据为图像数据时,向显示屏的显示驱动芯片发送升频指令,升频指令用于指示显示驱动芯片增大显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,调整单元,用于:
将图像数据发送给显示驱动芯片之前,向显示屏的显示驱动芯片发送升频指令。
可选的,在本申请的一些实施例中,调整装置配置于终端的显示驱动芯片。
可选的,在本申请的一些实施例中,调整装置还包括降压单元,用于:
在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,控制移动产业处理器接口的工作电路进入低电压状态。
可选的,在本申请的一些实施例中,调整装置还包括初始化单元,用于:
在显示屏上电启动时,向显示屏的显示驱动芯片发送携带第一刷新帧率范围的初始化指令,初始化指令用于指示显示驱动芯片根据第一刷新帧率范围进行图像刷新。
需要说明的是,为描述的方便和简洁,上述描述的显示屏刷新帧率的调整装置900的具体工作过程,可以参考上述图1至图8中方法的对应过程,在此不再赘述。
示例性的,本申请实施例还提供一种应用处理器,该应用处理器配置于包含显示屏的终端,用于:
监测移动产业处理器接口的工作状态;
在移动产业处理器接口的工作状态即将从数据发送状态进入空闲状态时,向显示屏的显示驱动芯片发送降频指令,降频指令用于指示显示驱动芯片降低显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,上述应用处理器用于:
在移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且移动产业处理器接口发送的数据为图像数据时,向显示屏的显示驱动芯片发送升频指令,升频指令用于指示显示驱动芯片增大显示屏进行图像显示的刷新帧率。
可选的,在本申请的一些实施例中,上述应用处理器用于:
在将图像数据发送给显示驱动芯片之前,向显示屏的显示驱动芯片发送升频指令。
可选的,在本申请的一些实施例中,上述应用处理器用于:
在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,控制移动产业处理器接口的工作电路进入低电压状态。
可选的,在本申请的一些实施例中,上述应用处理器用于:
在显示屏上电启动时,向显示屏的显示驱动芯片发送携带预设刷新帧率范围的初始化指令,初始化指令指示显示驱动芯片根据第一刷新帧率范围进行图像刷新。
示例性的,本申请实施例还提供一种显示驱动芯片,该显示驱动芯片配置于终端的显示屏,用于驱动终端的显示屏进行图像显示,该显示驱动芯片用于:
监测移动产业处理器接口的工作状态;
在移动产业处理器接口的工作状态发生变化时,调整显示屏进行图像显示的刷新帧率。
显示驱动芯片用于:
在移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,降低显示屏进行图像显示的刷新帧率。
显示驱动芯片用于:在移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且移动产业处理器接口发送的数据为图像数据时,增大显示屏进行图像显示的刷新帧率。
示例性的,本申请实施例还提供一种显示屏,该显示屏配置有上述显示驱动芯片。
示例性的,本申请实施例还提供一种包含显示屏的终端,该终端配置有上述应用处理器。
示例性的,本申请实施例还提供一种包含显示屏的终端,该终端的显示屏配置有上述显示驱动芯片。
示例性的,如图10所示,本申请实施例还提供一种包含显示屏的终端,该终端包括应用处理器111,该显示屏113包括显示驱动芯片(DDIC)1131和显示面板1132,应用处理器111与显示驱动芯片1131之间通过移动产业处理器接口MIPI连接,该终端用于实现上述图1-8所示的显示屏刷新帧率的调整方法,或者,该终端配置有上述图9所示的显示屏刷新帧率的调整装置。
例如,该终端的应用处理器111执行存储器112中的计算机程序时实现上述显示屏刷新帧率的调整方法,使得显示屏113的刷新帧率可以根据MIPI的工作状态动态调整,因而,可以避免固定使用高刷新帧率进行显示,出现显示屏的功耗较大的问题,有助于降低显示屏的功耗。
另外,由于移动产业处理器接口的工作状态由硬件逻辑决定,其工作状态的变化是实时的,因此,本申请通过监测移动产业处理器接口的工作状态进行显示屏刷新帧率的调整具有更高的实时性。
示例性的,本申请实施例还提供一种计算机可读存储介质,该计算机可读存储介质存储有计算机程序,该计算机程序被执行时实现上述各个显示屏刷新帧率的调整方法的步骤。
所属领域的技术人员可以清楚地了解到,为了描述的方便和简洁,仅以上述各功能单元的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不 同的功能单元、模块完成,即将装置的内部结构划分成不同的功能单元或模块,以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中,上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。另外,各功能单元、模块的具体名称也只是为了便于相互区分,并不用于限制本申请的保护范围。上述系统中单元、模块的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述或记载的部分,可以参见其它实施例的相关描述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于显示屏刷新帧率的调整方法的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
在本申请所提供的实施例中,应该理解到,所揭露的装置/用户终端和方法,可以通过其它的方式实现。例如,以上所描述的装置/用户终端实施例仅仅是示意性的,例如,模块或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通讯连接可以是通过一些接口,装置或单元的间接耦合或通讯连接,可以是电性,机械或其它的形式。
作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
集成的模块/单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请实现上述实施例方法中的全部或部分流程,也可以通过计算机程序来指令相关的硬件来完成,的计算机程序可存储于一计算机可读存储介质中,该计算机程序在被处理器执行时,可实现上述各个方法实施例的步骤。其中,计算机程序包括计算机程序代码,计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。计算机可读介质可以包括:能够携带计算机程序代码的任何实体或装置、记录介质、U盘、移动硬盘、磁碟、光盘、计算机存储器、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、电载波信号、电信信号以及软件分发介质等。需要说明的是,计算机可读介质包含的内容可以根据司法管辖区内立法和专利实践的要求进行适当的增减,例如在某些司法管辖区,根据立法和专利实践,计算机可读介质不包括电载波信号和电信信号。
以上实施例仅用以说明本申请的显示屏刷新帧率的调整方法,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的显示屏刷新帧率的调整方法进行修改,或者对其中部分方法特征进行等同替换;而这些修改或者替换,并不使相应显示屏刷新帧率的调整方法的本质脱离本申请各实施例显示屏刷新帧率的调整方法的精神和范围,均应包含在本申请的保护范围之内。

Claims (23)

  1. 一种显示屏刷新帧率的调整方法,其中,所述调整方法应用于包含显示屏的终端,所述调整方法包括:
    监测移动产业处理器接口的工作状态;
    在所述移动产业处理器接口的工作状态发生变化时,调整所述显示屏进行图像显示的刷新帧率。
  2. 如权利要求1所述的调整方法,其中,所述在所述移动产业处理器接口的工作状态发生变化时,调整所述显示屏进行图像显示的刷新帧率,包括:
    在所述移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,降低所述显示屏进行图像显示的刷新帧率。
  3. 如权利要求2所述的调整方法,其中,所述调整方法应用于所述终端的应用处理器,所述在所述移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,降低所述显示屏进行图像显示的刷新帧率,包括:
    在所述移动产业处理器接口的工作状态即将从数据发送状态进入空闲状态时,向所述显示屏的显示驱动芯片发送降频指令,所述降频指令用于指示所述显示驱动芯片降低所述显示屏进行图像显示的刷新帧率。
  4. 如权利要求1所述的调整方法,其中,所述在所述移动产业处理器接口的工作状态发生变化时,调整所述显示屏进行图像显示的刷新帧率,包括:
    在所述移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且所述移动产业处理器接口发送的数据为图像数据时,增大所述显示屏进行图像显示的刷新帧率。
  5. 如权利要求4所述的调整方法,其中,所述调整方法应用于所述终端的应用处理器,所述增大所述显示屏进行图像显示的刷新帧率,包括:
    向所述显示屏的显示驱动芯片发送升频指令,所述升频指令用于指示所述显示驱动芯片增大所述显示屏进行图像显示的刷新帧率。
  6. 如权利要求5所述的调整方法,其中,所述向所述显示屏的显示驱动芯片发送升频指令具体为:
    在将所述图像数据发送给所述显示驱动芯片之前,向所述显示屏的显示驱动芯片发送升频指令。
  7. 如权利要求1、2、4任意一项所述的调整方法,其中,所述调整方法应用于所述显示屏的显示驱动芯片。
  8. 如权利要求1-6任意一项所述的调整方法,其中,所述调整方法还包括:
    在所述移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,控制所述移动产业处理器接口的工作电路进入低电压状态。
  9. 如权利要求1-6任意一项所述的调整方法,其中,所述调整方法还包括:
    在所述显示屏上电启动时,向显示屏的显示驱动芯片发送携带预设刷新帧率范围的初始化指令,所述初始化指令指示所述显示驱动芯片根据所述第一刷新帧率范围进行图像刷新。
  10. 一种显示屏刷新帧率的调整装置,其中,所述调整装置配置于包含显示屏的终端,所述调整装置包括:
    监测单元,用于监测移动产业处理器接口的工作状态;
    调整单元,用于在所述移动产业处理器接口的工作状态发生变化时,调整所述显示屏进行图像显示的刷新帧率。
  11. 一种应用处理器,其中,所述应用处理器配置于包含显示屏的终端,所述应用处理器用于:
    监测移动产业处理器接口的工作状态;
    在所述移动产业处理器接口的工作状态即将从数据发送状态进入空闲状态时,向所述显示屏的显示驱动芯片发送降频指令,所述降频指令用于指示所述显示驱动芯片降低所述显示 屏进行图像显示的刷新帧率。
  12. 如权利要求11所述的应用处理器,其中,所述应用处理器用于:
    在所述移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且所述移动产业处理器接口发送的数据为图像数据时,向所述显示屏的显示驱动芯片发送升频指令,所述升频指令用于指示所述显示驱动芯片增大所述显示屏进行图像显示的刷新帧率。
  13. 如权利要求12所述的应用处理器,其中,所述应用处理器用于:
    在将所述图像数据发送给所述显示驱动芯片之前,向所述显示屏的显示驱动芯片发送所述升频指令。
  14. 如权利要求11-13任意一项所述的应用处理器,其中,所述应用处理器用于:
    在所述移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,控制所述移动产业处理器接口的工作电路进入低电压状态。
  15. 如权利要求11-13任意一项所述的应用处理器,其中,所述应用处理器用于:
    在所述显示屏上电启动时,向显示屏的显示驱动芯片发送携带预设刷新帧率范围的初始化指令,所述初始化指令指示所述显示驱动芯片根据所述第一刷新帧率范围进行图像刷新。
  16. 一种显示驱动芯片,其中,所述显示驱动芯片配置于终端的显示屏,用于驱动所述终端的显示屏进行图像显示,所述显示驱动芯片用于:
    监测移动产业处理器接口的工作状态;
    在所述移动产业处理器接口的工作状态发生变化时,调整所述显示屏进行图像显示的刷新帧率。
  17. 如权利要求16所述的显示驱动芯片,其中,所述显示驱动芯片用于:
    在所述移动产业处理器接口的工作状态从数据发送状态进入空闲状态时,降低所述显示屏进行图像显示的刷新帧率。
  18. 如权利要求16所述的显示驱动芯片,其中,所述显示驱动芯片用于:在所述移动产业处理器接口的工作状态从空闲状态进入数据发送状态,且所述移动产业处理器接口发送的数据为图像数据时,增大所述显示屏进行图像显示的刷新帧率。
  19. 一种显示屏,其中,所述显示屏配置有如权利要求16-18任意一项所述的显示驱动芯片。
  20. 一种包含显示屏的终端,其中,所述终端配置有如权利要求11-15任意一项所述的应用处理器。
  21. 一种包含显示屏的终端,其中,所述显示屏配置有如权利要求16-18任意一项所述的显示驱动芯片。
  22. 一种包含显示屏的终端,其中,所述终端包括应用处理器,显示屏配置有显示驱动芯片,所述应用处理器与所述显示驱动芯片之间通过移动产业处理器接口连接,所述终端用于实现如权利要求1-9任意一项所述的显示屏刷新帧率的调整方法,或者,所述终端配置有如权利要求10所述的显示屏刷新帧率的调整装置。
  23. 一种计算机可读存储介质,其中,所述计算机可读存储介质存储有计算机程序,所述计算机程序被执行时实现如权利要求1-9中任意一项所述方法的步骤。
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