WO2019179493A1 - 应用处理器及移动终端 - Google Patents

应用处理器及移动终端 Download PDF

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Publication number
WO2019179493A1
WO2019179493A1 PCT/CN2019/079033 CN2019079033W WO2019179493A1 WO 2019179493 A1 WO2019179493 A1 WO 2019179493A1 CN 2019079033 W CN2019079033 W CN 2019079033W WO 2019179493 A1 WO2019179493 A1 WO 2019179493A1
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WO
WIPO (PCT)
Prior art keywords
graphics
processor
random access
access memory
display
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PCT/CN2019/079033
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English (en)
French (fr)
Inventor
吕佳霖
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维沃移动通信有限公司
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Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to US16/982,967 priority Critical patent/US11860708B2/en
Publication of WO2019179493A1 publication Critical patent/WO2019179493A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3275—Power saving in memory, e.g. RAM, cache
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/20—Processor architectures; Processor configuration, e.g. pipelining
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/60—Memory management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • 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
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an application processor and a mobile terminal.
  • existing mobile terminals include an application processor (AP) and a display driver IC (DDIC), and a graphics processing unit (GPU) is provided in the application processor, and is processed by graphics.
  • the image frame is generated and output to the display driver chip; then the output of the image frame is displayed by the display driver chip.
  • the display mode of the mobile terminal usually includes a VDO mode (Video Mode Panel) and a CMD mode (Command Mode Panel).
  • VDO mode Video Mode Panel
  • CMD mode Common Mode Panel
  • the system In the VDO mode, the system is in a low frame rate output display state (for example, a static picture, the system repeatedly outputs the same image frame);
  • the CMD mode the system is in a high frame rate output display state, at which time an image frame of a dynamic high frame rate is output.
  • VDO mode VDO mode
  • CMD mode it is usually necessary to output image frames to the display driver chip according to a fixed frequency.
  • the display driver chip controls the display and the image frame is displayed by the panel, but this will cause the graphics processor to generate at a fixed frequency. Image frames, resulting in greater power consumption of the mobile terminal.
  • Embodiments of the present disclosure provide an application processor and a mobile terminal to reduce overall power consumption of the mobile terminal.
  • an embodiment of the present disclosure provides a mobile terminal, where the mobile terminal includes: a power management module, an application processor, a display driver chip, and a display panel, where
  • the power management module is configured to output a power supply voltage to the application processor, a display driving chip, and a display panel;
  • the application processor includes: a graphics processor, a graphics random access memory, and a display serial interface, wherein the graphics random access memory is coupled to a codec overlay hardware communication of the graphics processor for receiving and Storing an image frame output by the graphics processor; the graphic random access memory is further communicably connected to the display serial interface, and configured to output the stored image frame to the display driving chip through the display serial interface ;
  • the display driving chip controls the display panel to display the received image frame.
  • an embodiment of the present disclosure further provides an application processor, where the application processor includes: a graphics processor, a graphics random access memory, and a display serial interface, wherein the graphics random access memory a codec overlay hardware communication connection with the graphics processor for receiving and storing image frames output by the graphics processor; the graphics random access memory is further communicatively coupled to the display serial interface for The stored image frames are output.
  • the application processor includes: a graphics processor, a graphics random access memory, and a display serial interface, wherein the graphics random access memory a codec overlay hardware communication connection with the graphics processor for receiving and storing image frames output by the graphics processor; the graphics random access memory is further communicatively coupled to the display serial interface for The stored image frames are output.
  • the setting of the mobile terminal includes: a power management module, an application processor, a display driving chip, and a display panel, wherein the power management module is configured to output a power supply voltage to the application processor, the display driving chip, and the display panel.
  • the application processor includes: a graphics processor, a graphics random access memory, and a display serial interface, wherein the graphics random access memory is coupled to a codec overlay hardware communication of the graphics processor for receiving And storing an image frame output by the graphics processor; the graphic random access memory is further communicably connected to the display serial interface, and configured to output the stored image frame to the display driver through the display serial interface a chip; the display driver chip controls the display panel to display the received image frame.
  • setting the graphics random access memory in the application processor can ensure that the power consumption of the graphics random access memory is small, and at the same time, the power in the VDO mode can be reduced. Loss, therefore, in the present embodiment, the overall power consumption of the mobile terminal is reduced.
  • FIG. 1 is a structural diagram of a mobile terminal provided by an embodiment of the present disclosure
  • FIG. 2 is a second structural diagram of a mobile terminal according to an embodiment of the present disclosure.
  • FIG. 3 is a third structural diagram of a mobile terminal according to an embodiment of the present disclosure.
  • FIG. 4 is a fourth structural diagram of a mobile terminal according to an embodiment of the present disclosure.
  • FIG. 5 is a structural diagram of a mobile terminal according to an embodiment of the present disclosure.
  • a mobile terminal provided in an embodiment of the present disclosure includes: a power management module 101, an application processor 102, a display driver chip 103, and Display panel 104, wherein
  • the power management module 101 is configured to output a power supply voltage to the application processor 102, the display driver chip 103, and the display panel 104;
  • the application processor 102 includes a graphics processor 1021, a graphics random access memory 1022, and a display serial interface (DSI) 1023, wherein the graphics random access memory 1022 and the graphics processor 1021 a codec overlay hardware (GPU Codec OVL (Overlay hardware)) communication connection for receiving and storing image frames output by the graphics processor 1021; the graphics random access memory 1022 also interfaces with the display serial 1023 communication connection, for outputting the stored image frame to the display driving chip 103 through the display serial interface 1023;
  • GPU Codec OVL Overlay hardware
  • the display driving chip 103 controls the display panel 104 to display the received image frame.
  • the application processor includes a central processing unit (CPU), a bus (BUS), a graphics processor 1021, a graphics random access memory 1022, and a display serial interface 1023.
  • the central processing unit can be communicably connected to an external dynamic random access memory (DRAM) through a bus.
  • DRAM dynamic random access memory
  • the display mode of the mobile terminal can be set to be in VDO mode or CMD mode.
  • the target image frame output by the graphics processor 1021 may be stored by the graphics random access memory 1022, and the target image frame is repeatedly outputted to the display driver chip 103 through the display serial interface 1023 according to a preset frequency, and then The display driver chip 103 controls the display panel 104 to perform display.
  • the operation of some devices in the application processor such as a central processing unit and a graphics processor 1021, etc., which do not need to perform operations
  • the image frame can be output by the graphics processor 1021 to the graphics random access memory 1022, and then the stored image frame is output to the display driver chip 103 by the graphics random access memory 1022 at a preset frequency, and then displayed.
  • the drive chip 103 controls the display panel 104 to perform display.
  • the setting of the mobile terminal includes: a power management module 101, an application processor 102, a display driving chip 103, and a display panel 104, wherein the power management module 101 is configured to output a power supply voltage to the application processor 102,
  • the application processor 102 includes: a graphics processor 1021, a graphics random access memory 1022, and a display serial interface 1023, wherein the graphics random access memory 1022 and the graphics processing
  • the codec of the device 1021 covers a hardware communication connection for receiving and storing image frames output by the graphics processor 1021; the graphics random access memory 1022 is also communicatively coupled to the display serial interface 1023 for The stored image frame is output to the display driving chip 103 through the display serial interface 1023; the display driving chip 103 controls the display panel 104 to display the received image frame.
  • the image frames stored by the graphics random access memory 1022 may be generally subjected to compression processing. That is, in the embodiment, the graphics compression circuit and the graphics decompression circuit can also be provided in the mobile terminal. Specifically, the position of the graphic decompression circuit can be set according to actual needs, and the positions of the settings are different, and the structures of the corresponding application processor 102 and the display driving chip 103 are also different, which will be described in detail below.
  • the graphics compression circuit and the graphics decompression circuit are both disposed in the application processor 102.
  • the mobile terminal further includes a graphics compression circuit 105 and a graphics decompression circuit 106.
  • the graphics compression circuit 105 and the graphics decompression circuit 106 are both disposed in the application processor 102. among them,
  • the graphics compression circuit 105 is serially connected between the codec overlay hardware of the graphics processor 1021 and the graphics random access memory 1022, and is configured to compress and output the image frame output by the graphics processor 1021.
  • the graphics decompression circuit 106 is connected in series between the display serial interface 1023 and the graphics random access memory 1022, and is configured to decompress the image frame stored by the graphics random access memory 1022 and output the image frame to the image.
  • the display serial interface 1023 is connected in series between the display serial interface 1023 and the graphics random access memory 1022, and is configured to decompress the image frame stored by the graphics random access memory 1022 and output the image frame to the image.
  • the processing requirements of the image frame by the display driver chip 103 can be reduced, and at the same time, the graphics compression circuit 105 and the graphics decompression circuit 106 are set in the application.
  • the processor 102 can reduce the power consumption of the graphics compression circuit 105 and the graphics decompression circuit 106.
  • a larger batch access DRAM capability can be provided, DRAM usage efficiency is increased, DRAM switching times are reduced, and DRAM power is reduced, so that the power consumption of the overall system screen can be greatly improved.
  • the graphics compression circuit is provided in the application processor 102, and the graphics decompression circuit is provided in the display driver chip 103.
  • the mobile terminal further includes a graphics compression circuit 105, a graphics decompression circuit 106, and a buffer 107, where
  • the graphics compression circuit 105 is disposed in the application processor 102, and the graphics compression circuit 105 is serially connected between the codec overlay hardware of the graphics processor 1021 and the graphics random access memory 1022.
  • the image frame outputted by the graphics processor 1021 is compressed and output to the graphics random access memory 1022;
  • the graphics decompression circuit 106 and the buffer 107 are disposed in the display driver chip 103 for performing decompression processing on the image frames received by the application processor 102.
  • the display driving chip 103 further includes a display serial interface and a digital circuit, and the digital circuit may include a pulse counter (TP_ctrl), a clock circuit, and a Micro Control Unit (MCU). Wait.
  • TP_ctrl pulse counter
  • MCU Micro Control Unit
  • the above decompression circuit can be part of the digital circuit.
  • the buffer size of the buffer 107 can be set according to actual needs.
  • the buffer is mainly used as a line buffer.
  • the image frame output by the graphics processor 1021 is compressed by the graphics compression circuit 105 and stored in the graphics random access memory 1022.
  • the compressed image frame stored by the graphics random access memory 1022 is transmitted to the display through the display serial interface 1023.
  • the drive chip 103 is stored in the buffer 107 of the display driver chip 103, and then the image frame is decompressed by the graphics decompression circuit 106, and then the display panel 104 is controlled to display the corresponding image frame.
  • the image frame transmitted between the application processor 102 and the display driver chip 103 is a compressed image frame.
  • a larger batch access DRAM capability can be provided, the DRAM usage efficiency is increased, and the number of DRAM switches is reduced, thereby reducing the overall power consumption of the system.
  • the decompressed part is kept inside the DDIC, which can reduce the DSI transmission amount (for example, FHD1080p DSC compression is 3 times, then the DSI transmission amount is 1/3 in Fig. 3), so that the DSI power consumption can be saved. .
  • the application processor 102 may further include: an artificial intelligence (AI) processor, and the AI processor is communicatively coupled to the graphics random access memory 1022.
  • AI artificial intelligence
  • the AI processor is coupled to the graphics random access memory 1022 for communication, so that multiplexing of the graphics random access memory 1022 can be implemented.
  • the application processor 102 further includes a sensor processor communicatively coupled to the graphics random access memory.
  • the sensor processor is coupled to the graphics random access memory 1022 for communication so that multiplexing of the graphics random access memory 1022 can be implemented.
  • the DDIC is immediately turned off after the system is dark, and the application processor cannot use the memory storage space of the DDIC.
  • the embodiment of the present disclosure can add the graphic random access memory 1022 to the application processor 102, so that the AI processor or the sensor processor can reuse the graphic random access memory 1022 in the scene of the screen-out, so that the AI can be matched with the internal AI.
  • the graphics random access memory 1022 when the screen of the mobile terminal is in a bright state, the graphics random access memory 1022 is used for the screen (i.e., for storing image frames of the graphics processor 1021).
  • the graphics random access memory 1022 is used by the AI processor or the sensor processor, thereby reducing the wake-up execution of the huge Android application processor and DRAM, and achieving the power saving effect of the dark screen scene.
  • the power supply voltage output by the power management module 101 includes a target voltage for supplying power to the digital circuit in the display driving chip 103, and the target voltage is equal to an operating voltage of the digital circuit, wherein the operating voltage is The input voltage of the digital circuit is represented as a lowest input voltage of a high level, and an output end of the power management module for outputting the target voltage is connected to the digital circuit.
  • the magnitude of the above-mentioned operating voltage is related to the manufacturing process of the display driving chip 103, and the operating voltage is usually 1.2 V (or 1.0 V, depending on the fabrication process).
  • the output of the power management module for outputting the target voltage is connected to the digital circuit, thereby eliminating the low dropout regulator (LDO) and eliminating the low dropout linear regulator. The power loss caused.
  • the output voltage can be supplied in a manner that the operating voltage is close to the operating voltage, for example, the target voltage is slightly larger than the operating voltage, With an operating voltage of 1.2V, a target voltage of 1.35V can be output to the digital circuit. In this way, the power loss of the LDO can also be reduced.
  • an implementation of the present disclosure further provides an application processor, where the application processor includes: a graphics processor, a graphics random access memory, and a display serial interface, wherein the graphics random access memory and the A codec of the graphics processor overlays a hardware communication connection for receiving and storing image frames output by the graphics processor; the graphics random access memory is further communicatively coupled to the display serial interface for storage The image frame is output.
  • the application processor includes: a graphics processor, a graphics random access memory, and a display serial interface, wherein the graphics random access memory and the A codec of the graphics processor overlays a hardware communication connection for receiving and storing image frames output by the graphics processor; the graphics random access memory is further communicatively coupled to the display serial interface for storage The image frame is output.
  • the application processor further includes a graphics compression circuit serially connected between the codec overlay hardware of the graphics processor and the graphics random access memory, the graphics compression circuit is configured to The image frame output by the graphics processor is compressed and output to the graphics random access memory.
  • the graphics compression circuit and the graphics decompression circuit are provided in the embodiment, the processing requirement of the image frame by the display driver chip can be reduced, and at the same time, the graphics compression circuit and the graphics decompression circuit are disposed in the application processor, which can be reduced.
  • the power consumption of the graphics compression circuit and the graphics decompression circuit can be provided, DRAM usage efficiency is increased, DRAM switching times are reduced, and DRAM power is reduced, so that the power consumption of the overall system screen can be greatly improved.
  • the application processor further includes a graphics decompression circuit serially connected between the display serial interface and the graphics random access memory, where the graphics decompression circuit is configured to randomly store the graphics The image frame stored in the memory is decompressed and output to the display serial interface.
  • a larger batch access DRAM capability can be provided, the DRAM usage efficiency is increased, and the number of DRAM switches is reduced, thereby reducing the overall power consumption of the system.
  • the decompressed part is kept inside the DDIC, which can reduce the DSI transmission amount (for example, FHD1080p DSC compression is 3 times, then the DSI transmission amount is 1/3 in Fig. 3), so that the DSI power consumption can be saved. .
  • the application processor further includes: an AI processor, wherein the AI processor is communicatively coupled to the graphics random access memory.
  • the application processor further includes: a sensor processor, wherein the sensor processor is communicatively coupled to the graphics random access memory.
  • the graphic random access memory when the screen of the mobile terminal is in a bright screen state, the graphic random access memory is used for the screen (ie, the image frame for storing the graphics processor).
  • the graphic random access memory is used by the AI processor or the sensor processor, thereby reducing the wake-up execution of the huge Android application processor and DRAM, and achieving the power saving effect of the dark screen scene.
  • FIG. 5 is a structural diagram of a mobile terminal provided by an implementation of the present disclosure.
  • the mobile terminal 500 includes a radio frequency (RF) circuit 510, a memory 520, an input unit 530, a display unit 540, a processor 550, an audio circuit 560, a communication module 570, a power supply 580, and a power management module.
  • RF radio frequency
  • the power management module is configured to output a power supply voltage to the application processor and the display driver chip;
  • the application processor includes: a graphics processor, a graphics random access memory, and a display serial interface, wherein the graphics random access memory is coupled to a codec overlay hardware communication of the graphics processor for receiving and Storing an image frame output by the graphics processor; the graphic random access memory is further communicably connected to the display serial interface, and configured to output the stored image frame to the display driving chip through the display serial interface ;
  • the display driving chip controls a display panel in the display unit to display the received image frame.
  • the mobile terminal further includes a graphics compression circuit, a graphics decompression circuit, and a buffer, where
  • the graphics compression circuit is disposed in the application processor, and the graphics compression circuit is serially connected between the codec overlay hardware of the graphics processor and the graphics random access memory, for The image frame output by the graphics processor is compressed and output to the graphics random access memory;
  • the graphics decompression circuit and the buffer are disposed in the display driver chip, and are configured to perform decompression processing on an image frame received by the application processor.
  • the mobile terminal further includes a graphics compression circuit and a graphics decompression circuit; the graphics compression circuit and the graphics decompression circuit are both disposed in the application processor, where
  • the graphics compression circuit is serially connected between the codec overlay hardware of the graphics processor and the graphics random access memory, and is configured to compress the image frame output by the graphics processor and output the image frame to the graphics random Access memory
  • the graphics decompression circuit is serially connected between the display serial interface and the graphics random access memory, and is configured to decompress the image frame stored by the graphics random access memory and output the image frame to the display string. Line interface.
  • the application processor further includes: an AI processor, wherein the AI processor is communicatively coupled to the graphics random access memory.
  • the application processor further includes: a sensor processor, wherein the sensor processor is communicatively coupled to the graphics random access memory.
  • the power supply voltage output by the power management module includes a target voltage for supplying power to the digital circuit in the display driving chip, and the target voltage is equal to an operating voltage of the digital circuit, wherein the operating voltage is The input voltage of the digital circuit is represented as a lowest input voltage of a high level, and an output end of the power management module for outputting the target voltage is connected to the digital circuit.
  • the setting of the mobile terminal includes: a power management module, an application processor, a display driving chip, and a display panel, wherein the power management module is configured to output a power supply voltage to the application processor, the display driving chip, and the display panel.
  • the application processor includes: a graphics processor, a graphics random access memory, and a display serial interface, wherein the graphics random access memory is coupled to a codec overlay hardware communication of the graphics processor for receiving And storing an image frame output by the graphics processor; the graphic random access memory is further communicably connected to the display serial interface, and configured to output the stored image frame to the display driver through the display serial interface a chip; the display driver chip controls the display panel to display the received image frame.
  • setting the graphics random access memory in the application processor can ensure that the power consumption of the graphics random access memory is small, and at the same time, the power in the VDO mode can be reduced. Loss, therefore, in the present embodiment, the overall power consumption of the mobile terminal is reduced.
  • the input unit 530 can be configured to receive numeric or character information input by the user, and generate signal input related to user settings and function control of the mobile terminal 500.
  • the input unit 530 may include a touch panel 531.
  • the touch panel 531 also referred to as a touch screen, can collect touch operations on or near the user (such as the operation of the user using any suitable object or accessory such as a finger or a stylus on the touch panel 531), and according to the preset
  • the programmed program drives the corresponding connection device.
  • the touch panel 531 can include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 550 is provided and can receive commands from the processor 550 and execute them.
  • the touch panel 531 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 530 may further include other input devices 532, which may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like. One or more of them.
  • the display unit 540 can be used to display information input by the user or information provided to the user and various menu interfaces of the mobile terminal 500.
  • the display unit 540 can include a display panel 541.
  • the display panel 541 can be configured in the form of an LCD or an Organic Light-Emitting Diode (OLED).
  • the touch panel 531 can cover the display panel 541 to form a touch display screen, and when the touch display screen detects a touch operation on or near it, it is transmitted to the processor 550 to determine the type of the touch event, and then the processor The 550 provides a corresponding visual output on the touch display depending on the type of touch event.
  • the touch display includes an application interface display area and a common control display area.
  • the arrangement manner of the application interface display area and the display area of the common control is not limited, and the arrangement manner of the two display areas can be distinguished by up-and-down arrangement, left-right arrangement, and the like.
  • the application interface display area can be used to display the interface of the application. Each interface can contain interface elements such as at least one application's icon and/or widget desktop control.
  • the application interface display area can also be an empty interface that does not contain any content.
  • the common control display area is used to display controls with high usage, such as setting buttons, interface numbers, scroll bars, phone book icons, and the like.
  • the processor 550 is a control center of the mobile terminal 500, and connects various parts of the entire mobile phone by using various interfaces and lines, by running or executing software programs and/or modules stored in the first memory 521, and calling the second storage.
  • the data in the memory 522 performs various functions and processing data of the mobile terminal 500, thereby performing overall monitoring of the mobile terminal 500.
  • processor 550 can include one or more processing units.
  • the mobile terminal may include at least one of a mobile phone, a tablet computer, an e-book reader, a digital camera, a laptop portable computer, a smart television, and a wearable device.

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Abstract

本公开提供一种移动终端及应用处理器，该移动终端包括：电源管理模块、应用处理器、显示驱动芯片和显示面板，电源管理模块，用于输出供电电压至应用处理器、显示驱动芯片和显示面板；应用处理器包括：图形处理器、图形随机存取存储器和显示串行接口，其中，图形随机存取存储器与图形处理器的编解码器覆盖硬件通信连接，用于接收并储存图形处理器输出的图像帧；图形随机存取存储器还与显示串行接口通信连接，用于将储存的图像帧通过显示串行接口输出至显示驱动芯片；显示驱动芯片控制显示面板显示接收到的图像帧。

Description

应用处理器及移动终端
相关申请的交叉引用
本申请主张在2018年3月23日在中国提交的中国专利申请号No.201810244394.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种应用处理器及移动终端。
背景技术
众所周知，现有的移动终端包括应用处理器(Application Processor，AP)和显示驱动芯片(Display Driver IC，DDIC)，在应用处理器中设有图形处理器(Graphic Processing Unit，GPU)，由图形处理器产生图像帧，并输出至显示驱动芯片；然后由显示驱动芯片进行图像帧的输出显示。移动终端的显示模式通常包括VDO模式(Video Mode Panel)和CMD模式(Command Mode Panel)，在VDO模式下，系统处于低帧率输出显示状态(例如静态画面，系统重复输出相同的图像帧)；在CMD模式，系统处于高帧率输出显示状态，此时输出动态高帧率的图像帧。
无论是VDO模式还是CMD模式，通常都需要按照固定频率输输出图像帧到显示驱动芯片中，由显示驱动芯片控制显示，由面板显示图像帧，但这样将会使得图形处理器需要按照固定频率产生图像帧，从而导致移动终端的功耗较大。
发明内容
本公开实施例提供一种应用处理器及移动终端，以降低移动终端的整体功耗。
第一方面，本公开实施例提供了一种移动终端，所述移动终端包括：电源管理模块、应用处理器、显示驱动芯片和显示面板，其中，
所述电源管理模块，用于输出供电电压至所述应用处理器、显示驱动芯 片和显示面板；
所述应用处理器包括：图形处理器、图形随机存取存储器和显示串行接口，其中，所述图形随机存取存储器与所述图形处理器的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器输出的图像帧；所述图形随机存取存储器还与所述显示串行接口通信连接，用于将储存的图像帧通过所述显示串行接口输出至所述显示驱动芯片；
所述显示驱动芯片控制所述显示面板显示接收到的所述图像帧。
第二方面，本公开实施例还提供了一种应用处理器，其中，所述应用处理器包括：图形处理器、图形随机存取存储器和显示串行接口，其中，所述图形随机存取存储器与所述图形处理器的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器输出的图像帧；所述图形随机存取存储器还与所述显示串行接口通信连接，用于将储存的图像帧进行输出。
本公开实施例中，设置移动终端包括：电源管理模块、应用处理器、显示驱动芯片和显示面板，所述电源管理模块，用于输出供电电压至所述应用处理器、显示驱动芯片和显示面板；所述应用处理器包括：图形处理器、图形随机存取存储器和显示串行接口，其中，所述图形随机存取存储器与所述图形处理器的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器输出的图像帧；所述图形随机存取存储器还与所述显示串行接口通信连接，用于将储存的图像帧通过所述显示串行接口输出至所述显示驱动芯片；所述显示驱动芯片控制所述显示面板显示接收到的所述图像帧。由于应用处理器的制造工艺优于显示驱动芯片，因此在应用处理器中设置图形随机存取存储器，可以保证图形随机存取存储器的功耗较小，与此同时，可以降低VDO模式下电能的损耗，因此，在本实施例中，降低了移动终端的整体功耗。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获取其他的附图。
图1是本公开实施例提供的移动终端的架构图之一；
图2是本公开实施例提供的移动终端的架构图之二；
图3是本公开实施例提供的移动终端的架构图之三；
图4是本公开实施例提供的移动终端的架构图之四；
图5是本公开实施例提供的移动终端的结构图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获取的所有其他实施例，都属于本公开保护的范围。
参照图1，图1是本公开提供的移动终端的架构图，如图1所示，在本公开实施例中提供的移动终端包括：电源管理模块101、应用处理器102、显示驱动芯片103和显示面板104，其中，
所述电源管理模块101，用于输出供电电压至所述应用处理器102、显示驱动芯片103和显示面板104；
所述应用处理器102包括：图形处理器1021、图形随机存取存储器1022和显示串行接口(Display Serial Interface，DSI)1023，其中，所述图形随机存取存储器1022与所述图形处理器1021的编解码器覆盖硬件(GPU Codec OVL(Overlay hardware))通信连接，用于接收并储存所述图形处理器1021输出的图像帧；所述图形随机存取存储器1022还与所述显示串行接口1023通信连接，用于将储存的图像帧通过所述显示串行接口1023输出至所述显示驱动芯片103；
所述显示驱动芯片103控制所述显示面板104显示接收到的所述图像帧。
本实施例中，上述应用处理器包括中央处理器(Central Processing Unit，CPU)、总线(BUS)、图形处理器1021、图形随机存取存储器1022和显示串行接口1023。具体的，中央处理器可以通过总线与外部的动态随机存取存储器(Dynamic Random Access Memory，DRAM)通信连接。
在工作时，可以设置移动终端的显示模式位于VDO模式或者CMD模式。 在VDO模式下，可以由图形随机存取存储器1022储存图形处理器1021输出的目标图像帧，并按照预设频率通过显示串行接口1023将目标图像帧反复输出到显示驱动芯片103中，然后由显示驱动芯片103控制显示面板104进行显示。这样，在VDO模式下，可以关闭应用处理器中部分器件的工作(如中央处理器和图形处理器1021等无需执行操作的器件)，从而达到节省电能的目的。在CMD模式下，可以由图形处理器1021输出图像帧至图形随机存取存储器1022，然后由图形随机存取存储器1022将存储的图像帧按照预设频率输出至显示驱动芯片103中，然后由显示驱动芯片103控制显示面板104进行显示。
本公开实施例中，设置移动终端包括：电源管理模块101、应用处理器102、显示驱动芯片103和显示面板104，所述电源管理模块101，用于输出供电电压至所述应用处理器102、显示驱动芯片103和显示面板104；所述应用处理器102包括：图形处理器1021、图形随机存取存储器1022和显示串行接口1023，其中，所述图形随机存取存储器1022与所述图形处理器1021的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器1021输出的图像帧；所述图形随机存取存储器1022还与所述显示串行接口1023通信连接，用于将储存的图像帧通过所述显示串行接口1023输出至所述显示驱动芯片103；所述显示驱动芯片103控制所述显示面板104显示接收到的所述图像帧。由于应用处理器102的制造工艺优于显示驱动芯片103，因此在应用处理器102中设置图形随机存取存储器1022，可以保证图形随机存取存储器1022的功耗较小，与此同时，可以降低VDO模式下电能的损耗，因此，在本实施例中，降低了移动终端的整体功耗。
应理解，在移动终端中，为了降低图形随机存取存储器1022的需求，通常可以对图形随机存取存储器1022储存的图像帧进行压缩处理。即在本实施例中，还可以在移动终端中设置图形压缩电路和图形解压缩电路。具体的，图形解压缩电路设置的位置可以根据实际需要进行设置，设置的位置不同，对应的应用处理器102和显示驱动芯片103的结构也不同，以下对此进行详细说明。
具体的，在第一实施方式中，图形压缩电路和图形解压缩电路均设置在 应用处理器102中。如图2所示，在本实施方式中，移动终端还包括图形压缩电路105和图形解压缩电路106；所述图形压缩电路105和图形解压缩电路106均设置于所述应用处理器102中，其中，
所述图形压缩电路105串接于所述图形处理器1021的编解码器覆盖硬件和所述图形随机存取存储器1022之间，用于将所述图形处理器1021输出的图像帧压缩后输出至所述图形随机存取存储器1022；
所述图形解压缩电路106串接于所述显示串行接口1023和所述图形随机存取存储器1022之间，用于将所述图形随机存取存储器1022储存的图像帧解压缩后，输出至所述显示串行接口1023。
由于在本实施例中设置了图形压缩电路105和图形解压缩电路106，从而可以降低显示驱动芯片103对图像帧的处理需求，与此同时将图形压缩电路105和图形解压缩电路106设置在应用处理器102，可以降低图形压缩电路105和图形解压缩电路106的功耗。这样，在本实施方式中，可以提供更大批次存取DRAM能力，增加DRAM使用效率，减少DRAM开关次数，降低DRAM power，因此整体系统量屏的功耗可以得到大幅改善。
在第二实施方式中，图形压缩电路设置在应用处理器102中，图形解压缩电路设置在显示驱动芯片103。如图3所示，在本实施方式中，移动终端还包括图形压缩电路105、图形解压缩电路106和缓存器107，其中，
所述图形压缩电路105设置于所述应用处理器102中，且所述图形压缩电路105串接于所述图形处理器1021的编解码器覆盖硬件和所述图形随机存取存储器1022之间，用于将所述图形处理器1021输出的图像帧压缩后输出至所述图形随机存取存储器1022；
所述图形解压缩电路106和缓存器107设置于所述显示驱动芯片103中，用于将接收到所述应用处理器102发送的图像帧进行解压缩处理。
本实施方式中，显示驱动芯片103还包括显示串行接口和数字电路(digital circuit)，该数字电路可以包括脉冲计数器(TP_ctrl)、时钟电路(timer)和微控制单元(Micro Control Unit，MCU)等。上述解压缩电路可以作为该数字电路的一部分。上述缓存器107的缓存大小可以根据实际需要进行设置，例如在本实施例中，该缓存器主要用于作为行缓冲区(line buffer)使用。
在工作时，图形处理器1021输出的图像帧经过图形压缩电路105压缩后，储存在图形随机存取存储器1022内，图形随机存取存储器1022储存的压缩图像帧通过显示串行接口1023传输到显示驱动芯片103中，并保存在显示驱动芯片103的缓存器107中，然后通过图形解压缩电路106对图像帧进行解压缩后，控制显示面板104显示相应的图像帧。这样，在应用处理器102和显示驱动芯片103之间传输的图像帧是被压缩的图像帧。
在第二实施方式中，可以提供更大批次存取DRAM能力，增加DRAM使用效率，减少DRAM开关次数，因此整体降低了系统的功耗。此外将解压缩的部份保留在DDIC内部，可以减少DSI的传输量(以FHD1080p DSC压缩3倍为例，则图3中DSI传输量剩下1/3)从而可以达到节省DSI功耗的效果。
进一步的，参照图4，所述应用处理器102还可以包括：人工智能(Artificial Intelligence，AI)处理器，所述AI处理器与所述图形随机存取存储器1022通信连接。加入AI处理器与图形随机存取存储器1022通信连接，从而可以实现图形随机存取存储器1022的复用。
此外，在另一实施例中，应用处理器102还包括：传感器处理器(Sensor Processor)，所述传感器处理器与所述图形随机存取存储器通信连接。加入传感器处理器与图形随机存取存储器1022通信连接，从而可以实现图形随机存取存储器1022的复用。
相关技术中的移动终端的系统中，系统暗屏后DDIC立即被关闭，应用处理器无法使用DDIC的内存存储空间。本公开实施例通过在应用处理器102上增加图形随机存取存储器1022，从而可以在熄屏场景下，AI处理器或者传感器处理器可以复用图形随机存取存储器1022，从而可以搭配内部的AI或Sensor Processor开发更多更丰富的低功耗暗屏场景App且不需要唤醒AP Processor和DRAM(减少唤醒庞大的安卓AP系统耗电)，例如:低功耗MP3播放、主动抗噪、计步器、语音唤醒、指纹辨似唤醒和暗屏AI人脸辨似唤醒以及更多低功耗物联网的应用。达到传统单一应用的嵌入式系统(Embedded System)的功耗。
在本实施例中，当移动终端的屏幕处于亮屏状态下，图形随机存取存储 器1022供刷屏使用(即用于储存图形处理器1021的图像帧)。当屏幕处于熄屏状态下，图形随机存取存储器1022供AI处理器或者传感器处理器使用，从而减少唤醒执行庞大安卓应用处理器和DRAM，达到暗屏场景省电效果。
进一步的，上述电源管理模块101输出的供电电压包括用于为所述显示驱动芯片103中数字电路供电的目标电压，所述目标电压等于所述数字电路的操作电压，其中，所述操作电压为所述数字电路的输入电压表示为高电平的最低输入电压，所述电源管理模块用于输出所述目标电压的输出端与所述数字电路连接。
在本实施例中，上述操作电压的大小与显示驱动芯片103的制作工艺相关，通常情况下操作电压为1.2V(或1.0V，取决于制作工艺)。这样，所述电源管理模块用于输出所述目标电压的输出端与所述数字电路连接，从而省去了低压差线性稳压器(low dropout regulator，LDO)，消除了低压差线性稳压器带来的电能损耗。
可以理解的，在本实施例中，若显示驱动芯片103保留有低压差线性稳压器，可以采用输出的目标电压接近操作电压的方式进行供电，例如，提供的目标电压略大于操作电压，假设操作电压为1.2V，则可以采用1.35V的目标电压输出到数字电路中。这样，也可以降低LDO的电能损耗。
进一步的，本公开实施还提供了一种应用处理器，该所述应用处理器包括：图形处理器、图形随机存取存储器和显示串行接口，其中，所述图形随机存取存储器与所述图形处理器的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器输出的图像帧；所述图形随机存取存储器还与所述显示串行接口通信连接，用于将储存的图像帧进行输出。
在本公开实施例提供的应用处理器的结构和工作原理均可以参照上述移动终端的应用处理器的描述，在此不再赘述。由于应用处理器的制造工艺优于显示驱动芯片，因此在应用处理器中设置图形随机存取存储器，可以保证图形随机存取存储器的功耗较小，与此同时，可以降低VDO模式下电能的损耗，因此，在本实施例中，降低了移动终端的整体功耗。
可选的，所述应用处理器还包括串接于所述图形处理器的编解码器覆盖硬件和所述图形随机存取存储器之间的图形压缩电路，所述图形压缩电路用 于将所述图形处理器输出的图像帧压缩后输出至所述图形随机存取存储器。
由于在本实施例中设置了图形压缩电路和图形解压缩电路，从而可以降低显示驱动芯片对图像帧的处理需求，与此同时将图形压缩电路和图形解压缩电路设置在应用处理器，可以降低图形压缩电路和图形解压缩电路的功耗。这样，在本实施方式中，可以提供更大批次存取DRAM能力，增加DRAM使用效率，减少DRAM开关次数，降低DRAM power，因此整体系统量屏的功耗可以得到大幅改善。
可选的，所述应用处理器还包括串接于所述显示串行接口和所述图形随机存取存储器之间的图形解压缩电路，所述图形解压缩电路用于将所述图形随机存取存储器储存的图像帧解压缩后，输出至所述显示串行接口。
在本实施例中，可以提供更大批次存取DRAM能力，增加DRAM使用效率，减少DRAM开关次数，因此整体降低了系统的功耗。此外将解压缩的部份保留在DDIC内部，可以减少DSI的传输量(以FHD1080p DSC压缩3倍为例，则图3中DSI传输量剩下1/3)从而可以达到节省DSI功耗的效果。
可选的，所述应用处理器还包括：AI处理器，所述AI处理器与所述图形随机存取存储器通信连接。
可选的，所述应用处理器还包括：传感器处理器，所述传感器处理器与所述图形随机存取存储器通信连接。
在本实施例中，当移动终端的屏幕处于亮屏状态下，图形随机存取存储器供刷屏使用(即用于储存图形处理器的图像帧)。当屏幕处于熄屏状态下，图形随机存取存储器供AI处理器或者传感器处理器使用，从而减少唤醒执行庞大安卓应用处理器和DRAM，达到暗屏场景省电效果。
请参阅图5，图5是本公开实施提供的移动终端的结构图。
如图5所示，移动终端500包括射频(Radio Frequency，RF)电路510、存储器520、输入单元530、显示单元540、处理器550、音频电路560、通信模块570、电源580及电源管理模块、应用处理器、显示驱动芯片和显示面板，其中，
所述电源管理模块，用于输出供电电压至所述应用处理器和显示驱动芯片；
所述应用处理器包括：图形处理器、图形随机存取存储器和显示串行接口，其中，所述图形随机存取存储器与所述图形处理器的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器输出的图像帧；所述图形随机存取存储器还与所述显示串行接口通信连接，用于将储存的图像帧通过所述显示串行接口输出至所述显示驱动芯片；
所述显示驱动芯片控制所述显示单元中的显示面板显示接收到的所述图像帧。
可选的，所述移动终端还包括图形压缩电路、图形解压缩电路和缓存器，其中，
所述图形压缩电路设置于所述应用处理器中，且所述图形压缩电路串接于所述图形处理器的编解码器覆盖硬件和所述图形随机存取存储器之间，用于将所述图形处理器输出的图像帧压缩后输出至所述图形随机存取存储器；
所述图形解压缩电路和缓存器设置于所述显示驱动芯片中，用于将接收到所述应用处理器发送的图像帧进行解压缩处理。
可选的，所述移动终端还包括图形压缩电路和图形解压缩电路；所述图形压缩电路和图形解压缩电路均设置于所述应用处理器中，其中，
所述图形压缩电路串接于所述图形处理器的编解码器覆盖硬件和所述图形随机存取存储器之间，用于将所述图形处理器输出的图像帧压缩后输出至所述图形随机存取存储器；
所述图形解压缩电路串接于所述显示串行接口和所述图形随机存取存储器之间，用于将所述图形随机存取存储器储存的图像帧解压缩后，输出至所述显示串行接口。
可选的，所述应用处理器还包括：AI处理器，所述AI处理器与所述图形随机存取存储器通信连接。
可选的，所述应用处理器还包括：传感器处理器，所述传感器处理器与所述图形随机存取存储器通信连接。
可选的，所述电源管理模块输出的供电电压包括用于为所述显示驱动芯片中数字电路供电的目标电压，所述目标电压等于所述数字电路的操作电压，其中，所述操作电压为所述数字电路的输入电压表示为高电平的最低输入电 压，所述电源管理模块用于输出所述目标电压的输出端与所述数字电路连接。
应理解，上述应用处理器可以为处理器550的一部分，也可以是独立的处理器。
本公开实施例中，设置移动终端包括：电源管理模块、应用处理器、显示驱动芯片和显示面板，所述电源管理模块，用于输出供电电压至所述应用处理器、显示驱动芯片和显示面板；所述应用处理器包括：图形处理器、图形随机存取存储器和显示串行接口，其中，所述图形随机存取存储器与所述图形处理器的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器输出的图像帧；所述图形随机存取存储器还与所述显示串行接口通信连接，用于将储存的图像帧通过所述显示串行接口输出至所述显示驱动芯片；所述显示驱动芯片控制所述显示面板显示接收到的所述图像帧。由于应用处理器的制造工艺优于显示驱动芯片，因此在应用处理器中设置图形随机存取存储器，可以保证图形随机存取存储器的功耗较小，与此同时，可以降低VDO模式下电能的损耗，因此，在本实施例中，降低了移动终端的整体功耗。
其中，输入单元530可用于接收用户输入的数字或字符信息，以及产生与移动终端500的用户设置以及功能控制有关的信号输入。具体地，本公开实施例中，该输入单元530可以包括触控面板531。触控面板531，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板531上的操作)，并根据预先设定的程式驱动相应的连接装置。可选的，触控面板531可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给该处理器550，并能接收处理器550发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板531。除了触控面板531，输入单元530还可以包括其他输入设备532，其他输入设备532可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
其中，显示单元540可用于显示由用户输入的信息或提供给用户的信息 以及移动终端500的各种菜单界面。显示单元540可包括显示面板541，可选的，可以采用LCD或有机发光二极管(Organic Light-Emitting Diode，OLED)等形式来配置显示面板541。
应注意，触控面板531可以覆盖显示面板541，形成触摸显示屏，当该触摸显示屏检测到在其上或附近的触摸操作后，传送给处理器550以确定触摸事件的类型，随后处理器550根据触摸事件的类型在触摸显示屏上提供相应的视觉输出。
触摸显示屏包括应用程序界面显示区及常用控件显示区。该应用程序界面显示区及该常用控件显示区的排列方式并不限定，可以为上下排列、左右排列等可以区分两个显示区的排列方式。该应用程序界面显示区可以用于显示应用程序的界面。每一个界面可以包含至少一个应用程序的图标和/或widget桌面控件等界面元素。该应用程序界面显示区也可以为不包含任何内容的空界面。该常用控件显示区用于显示使用率较高的控件，例如，设置按钮、界面编号、滚动条、电话本图标等应用程序图标等。
其中处理器550是移动终端500的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在第一存储器521内的软件程序和/或模块，以及调用存储在第二存储器522内的数据，执行移动终端500的各种功能和处理数据，从而对移动终端500进行整体监控。可选的，处理器550可包括一个或多个处理单元。
移动终端可以包括：手机、平板电脑、电子书阅读器、数码相机、膝上型便携计算机、智能电视机、可穿戴设备中的至少一项。
以上，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (11)

  1. 一种移动终端，包括：电源管理模块、应用处理器、显示驱动芯片和显示面板，其中，
    所述电源管理模块，用于输出供电电压至所述应用处理器、显示驱动芯片和显示面板；
    所述应用处理器包括：图形处理器、图形随机存取存储器和显示串行接口，其中，所述图形随机存取存储器与所述图形处理器的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器输出的图像帧；所述图形随机存取存储器还与所述显示串行接口通信连接，用于将储存的图像帧通过所述显示串行接口输出至所述显示驱动芯片；
    所述显示驱动芯片控制所述显示面板显示接收到的所述图像帧。
  2. 根据权利要求1所述的移动终端，还包括图形压缩电路、图形解压缩电路和缓存器，其中，
    所述图形压缩电路设置于所述应用处理器中，且所述图形压缩电路串接于所述图形处理器的编解码器覆盖硬件和所述图形随机存取存储器之间，用于将所述图形处理器输出的图像帧压缩后输出至所述图形随机存取存储器；
    所述图形解压缩电路和缓存器设置于所述显示驱动芯片中，用于将接收到所述应用处理器发送的图像帧进行解压缩处理。
  3. 根据权利要求1所述的移动终端，还包括图形压缩电路和图形解压缩电路；所述图形压缩电路和图形解压缩电路均设置于所述应用处理器中，其中，
    所述图形压缩电路串接于所述图形处理器的编解码器覆盖硬件和所述图形随机存取存储器之间，用于将所述图形处理器输出的图像帧压缩后输出至所述图形随机存取存储器；
    所述图形解压缩电路串接于所述显示串行接口和所述图形随机存取存储器之间，用于将所述图形随机存取存储器储存的图像帧解压缩后，输出至所述显示串行接口。
  4. 根据权利要求1所述的移动终端，其中，所述应用处理器还包括：人 工智能AI处理器，所述AI处理器与所述图形随机存取存储器通信连接。
  5. 根据权利要求1所述的移动终端，其中，所述应用处理器还包括：传感器处理器，所述传感器处理器与所述图形随机存取存储器通信连接。
  6. 根据权利要求1至5中任一项所述的移动终端，其中，所述电源管理模块输出的供电电压包括用于为所述显示驱动芯片中数字电路供电的目标电压，所述目标电压等于所述数字电路的操作电压，其中，所述操作电压为所述数字电路的输入电压表示为高电平的最低输入电压，所述电源管理模块用于输出所述目标电压的输出端与所述数字电路连接。
  7. 一种应用处理器，包括：图形处理器、图形随机存取存储器和显示串行接口，其中，所述图形随机存取存储器与所述图形处理器的编解码器覆盖硬件通信连接，用于接收并储存所述图形处理器输出的图像帧；所述图形随机存取存储器还与所述显示串行接口通信连接，用于将储存的图像帧进行输出。
  8. 根据权利要求7所述的应用处理器，还包括串接于所述图形处理器的编解码器覆盖硬件和所述图形随机存取存储器之间的图形压缩电路，所述图形压缩电路用于将所述图形处理器输出的图像帧压缩后输出至所述图形随机存取存储器。
  9. 根据权利要求8所述的应用处理器，还包括串接于所述显示串行接口和所述图形随机存取存储器之间的图形解压缩电路，所述图形解压缩电路用于将所述图形随机存取存储器储存的图像帧解压缩后，输出至所述显示串行接口。
  10. 根据权利要求7至9中任一项所述的应用处理器，还包括：人工智能AI处理器，所述AI处理器与所述图形随机存取存储器通信连接。
  11. 根据权利要求7至9中任一项所述的应用处理器，还包括：传感器处理器，所述传感器处理器与所述图形随机存取存储器通信连接。
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