WO2014075473A1 - Energy-saving display method and device for terminal, lcd module, and terminal - Google Patents

Energy-saving display method and device for terminal, lcd module, and terminal Download PDF

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Publication number
WO2014075473A1
WO2014075473A1 PCT/CN2013/081490 CN2013081490W WO2014075473A1 WO 2014075473 A1 WO2014075473 A1 WO 2014075473A1 CN 2013081490 W CN2013081490 W CN 2013081490W WO 2014075473 A1 WO2014075473 A1 WO 2014075473A1
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WO
WIPO (PCT)
Prior art keywords
terminal
main processor
energy
wake
saving
Prior art date
Application number
PCT/CN2013/081490
Other languages
French (fr)
Chinese (zh)
Inventor
刘昭元
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201210456929.6 priority Critical
Priority to CN201210456929.6A priority patent/CN103810971B/en
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2014075473A1 publication Critical patent/WO2014075473A1/en

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of power-saving mode
    • G06F1/3206Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215Monitoring of peripheral devices
    • G06F1/3218Monitoring of peripheral devices of display devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of power-saving mode
    • G06F1/3234Power saving characterised by the action undertaken
    • G06F1/325Power saving in peripheral device
    • G06F1/3265Power saving in display device
    • 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 THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/10Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply
    • Y02D10/15Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply acting upon peripherals
    • Y02D10/153Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply acting upon peripherals the peripheral being a display
    • 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 THIR OWN ENERGY USE
    • Y02D50/00Techniques for reducing energy consumption in wire-line communication networks
    • Y02D50/20Techniques for reducing energy consumption in wire-line communication networks using subset functionality

Abstract

An energy-saving display method for a terminal, comprising: after a terminal enters a static display page, sending a sleep instruction to a main processor of the terminal to instruct the main processor to enter a sleep mode (101); and when a wake-up event occurs, sending a wake-up signal to the main processor to instruct the main processor to exit the sleep state (102). An energy-saving display device corresponding to the method, an LCD module and a terminal can effectively reduce the power consumption of a terminal and enhance the endurance of the terminal.

Description

 Energy-saving display method and device for terminal, LCD module, terminal

 The present invention relates to the field of intelligent terminals, and in particular to an energy-saving display method and device for a terminal, an LCD module, and a terminal. Background technique

 At present, battery capacity has become a major bottleneck in the development of various terminals, especially smart terminals. However, as LCD (Liquid Crystal Display) screens of various terminals become larger and larger, the resolution is getting larger and larger, and the power consumption of the LCD is also increasing. Some PAD products and some large-screen terminals consume up to half the power of the entire system. For the entire terminal, in the case of limited battery capacity, in order to increase the endurance, only efforts can be made to reduce power consumption.

 The prior art generally saves battery power and increases battery life by reducing the power consumption of the LCD. Commonly used LCD methods for reducing power consumption are: 1. Environmentally sensitive backlight auto-adjustment, which enables ambient light detection through various photosensors such as photodiodes, dedicated light sensors or cameras. Automatically adjust the backlight brightness of the LCD to reduce the power consumption of the LCD; 2. Content Adaptive Backlight Control (CABC), which calculates different white balance values from the LCD display by a certain algorithm. In order to automatically adjust the backlight brightness of the LCD, thereby reducing the power consumption of the LCD.

However, in practical applications, when the terminal is performing LCD display, the matching main processor is also in the high-speed operation mode. In this mode, the power consumption of the main processor is large, and the power consumption of the main processor is even More power than LCD screens. Therefore, merely adjusting the brightness of the LCD backlight does not achieve the purpose of effectively saving battery power. Summary of the invention

 One technical problem to be solved by the embodiments of the present invention is to provide an energy-saving display method and device for a terminal, an LCD module, and a terminal, which can effectively reduce the power consumption of the terminal and extend the terminal's battery life.

 In order to solve the above technical problem, the embodiments of the present invention provide the following technical solutions:

 In one aspect, an energy saving display method for a terminal is provided, including:

 After the terminal enters the static display page, sending a sleep instruction to the main processor of the terminal, instructing the main processor to enter a sleep mode;

 When a wake-up event occurs, a wake-up signal is sent to the main processor instructing the main processor to exit the sleep state.

 Preferably, in the above solution, the wake-up event includes: receiving an operation instruction input by a user, a timer of the terminal is triggered, and a sensor of the terminal is triggered.

 Preferably, in the foregoing solution, before the sending the sleep instruction to the main processor of the terminal, the method further includes:

 Acquiring and saving the static display content to be displayed, and displaying the static display content on the static display page.

 Preferably, in the foregoing solution, after the sending the wake-up signal to the main processor, the method further includes:

 Receiving a refresh page display content sent by the main processor, saving and displaying the refresh page display content;

 A sleep command is sent to the main processor of the terminal, instructing the main processor to enter a sleep mode. The embodiment of the present invention further provides an energy-saving display device for a terminal, the device comprising: a sleeping module, configured to send a sleep command to a main processor of the terminal after the terminal enters the static display page, instructing the main processor to enter Sleep mode

The wake-up module is configured to send a wake-up signal to the main processor when a wake-up event occurs, The main processor is shown to exit the sleep state.

 Preferably, in the above solution, the wake-up event includes: receiving an operation instruction input by a user, a timer of the terminal is triggered, and a sensor of the terminal is triggered.

 Preferably, in the above solution, the device further includes:

 The processing module is configured to acquire and save the static display content to be displayed, and display the static display content on the static display page.

 Preferably, in the above solution, the processing module is further configured to receive a refresh page display content sent by the main processor, and save and display the refresh page display content;

 The indication hibernation module is further configured to: after the processing module displays the refresh page display content, send a sleep instruction to the main processor of the terminal, instructing the main processor to enter a sleep mode.

 Embodiments of the present invention also provide an LCD module including the energy saving display device of the terminal as described above.

 The embodiment of the invention further provides a terminal, comprising the energy-saving display device of the terminal as described above.

 Embodiments of the present invention have the following beneficial effects:

 In the above solution, after the terminal enters the static display page, the sleep instruction is sent to the main processor of the terminal, and the main processor is instructed to enter the sleep mode. In this way, when the terminal performs static display, the main processor stops running, leaving only the LCD module to work, and the display circuit of the LCD module maintains the display of the static picture by the drive circuit and the refresh mechanism of the LCD module, thereby minimizing the whole machine of the terminal. Power consumption. DRAWINGS

 1 is a schematic flowchart of a method for displaying an energy-saving of a terminal according to an embodiment of the present invention;

 2 is a structural block diagram of an energy-saving display device of a terminal according to an embodiment of the present invention;

 3 is a schematic structural diagram of hardware of a terminal according to an embodiment of the present invention;

4 is a schematic structural diagram of another hardware of a terminal according to an embodiment of the present invention; FIG. 5 is a schematic flowchart of a method for displaying energy-saving of a terminal according to Embodiment 1 of the present invention; FIG. 6 is a schematic flowchart of a method for displaying energy-saving of a terminal according to Embodiment 2 of the present invention. detailed description

 The technical problems, the technical solutions, and the advantages of the embodiments of the present invention will become more apparent from the following detailed description.

 Embodiments of the present invention provide an energy-saving display method and device for a terminal, an LCD module, and a terminal, which can effectively reduce power consumption of the terminal and extend the endurance of the terminal.

 FIG. 1 is a schematic flowchart of a method for displaying an energy-saving display of a terminal according to an embodiment of the present invention. As shown in FIG. 1, the embodiment includes:

 Step 101: After the terminal enters the static display page, sending a sleep instruction to the main processor of the terminal, instructing the main processor to enter the sleep mode;

 Step 102: When a wake-up event occurs, a wake-up signal is sent to the main processor, instructing the main processor to exit the sleep state.

 In one embodiment, in the above solution, the wake-up event includes receiving an operation instruction input by the user, the timer of the terminal is triggered, and the sensor of the terminal is triggered.

 In an embodiment, before the step 101, the method further includes:

 Get and save the static display content to be displayed, and display the static display content on the static display page.

 In an embodiment, after the step 102, the method further includes:

 Receiving the refresh page display content sent by the main processor, saving and displaying the refresh page display content;

 A sleep command is sent to the main processor of the terminal, instructing the main processor to enter a sleep mode.

The energy-saving display method of the terminal in the embodiment of the present invention sends a sleep instruction to the main processor of the terminal after the terminal enters the static display page, and instructs the main processor to enter the sleep mode. In this way, when the terminal performs static display, the main processor stops running, leaving only the LCD module to work, relying on the LCD. The module's own drive circuit and refresh mechanism maintain the display of static images, minimizing the overall power consumption of the terminal.

 2 is a structural block diagram of an energy-saving display device of a terminal according to an embodiment of the present invention. As shown in FIG. 2, the embodiment includes:

 The hibernation module 20 is located at the terminal and can be implemented by the CPU, and configured to send a sleep instruction to the main processor of the terminal after the terminal enters the static display page, instructing the main processor to enter the sleep mode;

 The wake-up module 21, located at the terminal, can be implemented by the CPU, and configured to send a wake-up signal to the main processor when the wake-up event occurs, instructing the main processor to exit the sleep state.

 In one embodiment, in the above solution, the wake-up event includes receiving an operation instruction input by the user, the timer of the terminal is triggered, and the sensor of the terminal is triggered.

 In an embodiment, in the above solution, the device further includes:

 The processing module 22 is located at the terminal and can be implemented by the CPU, configured to acquire and save the static display content to be displayed, and display the static display content on the static display page.

 In an embodiment, in the foregoing solution, the processing module 22 is further configured to receive a refresh page display content sent by the main processor, and save and display the refresh page display content;

 The indication hibernation module 20 is further configured to send a sleep instruction to the main processor of the terminal after the processing module displays the refresh page display content, instructing the main processor to enter the sleep mode.

 The energy-saving display device of the terminal in the embodiment of the present invention sends a sleep command to the main processor of the terminal after the terminal enters the static display page, and instructs the main processor to enter the sleep mode. In this way, when the terminal performs static display, the main processor stops running, leaving only the LCD module to work, and the display circuit of the LCD module maintains the display of the static picture by the drive circuit and the refresh mechanism of the LCD module, thereby minimizing the whole machine of the terminal. Power consumption.

The embodiment of the invention further provides an LCD module, which comprises the above-mentioned energy-saving display device of the terminal. The embodiment of the invention further provides a terminal, comprising the energy-saving display device of the terminal described above. The energy-saving display method and apparatus for the terminal of the present invention will be described in detail below with reference to specific embodiments and FIGS. 3-6:

 The technical solution of the embodiment of the present invention is to let the main processor enter the sleep state and stop the operation when the terminal performs the static display, leaving only the LCD module to work, and maintaining the static picture by the driving circuit and the refresh mechanism of the LCD module itself. display. At this time, the power consumption of the whole machine is mainly the power consumption of the LCD module, thus minimizing the power consumption of the whole machine.

 The technical solution of the embodiment of the present invention is applicable to static display content, and the static display content refers to: the display content is updated only when the user interferes or some specific events, such as a timer or a sensor trigger, otherwise the display content will be maintained. constant. In current terminal applications, static display includes: document editing software, photo viewing software, photo editing software, e-books, and browsers.

The technical solution of the embodiment of the present invention is applicable to a terminal having an LCD module with a built-in memory, that is, a display memory, or an LCD module with an external memory. The LCD module is composed of a backlight driving circuit, an LCD screen, and an LCD peripheral power supply. 1) The LCD module with built-in memory means that the LCD screen is integrated with the memory. The LCD module can be operated independently of the main processor, independently implementing the automatic refresh of the current memory content and keeping the display. As shown in Figure 3, the LCD is integrated with the internal memory. The hardware block diagram of the terminal; 2) External memory means that the memory of the LCD module is configured outside the LCD screen, the LCD module does not have integrated memory, but the hardware system is configured with independent memory, and the LCD module generally shares the memory with the main processor. Figure 4 shows the hardware block diagram of the terminal for LCD external memory. At this time, the main processor of the terminal must allocate an independent DMA (Direct Memory Access) controller to the LCD module. The DMA controller in the main processor needs to have the following functions: As long as the DMA controller is initialized, the DMA controller can run independently without being affected by the operating state of the main processor. Even if the main processor is in the stop state, such as the sleep state, the DMA controller can perform related data read and write operations, so that the DMA controller cooperates with the independent display after the main processor sleeps. Save the automatic refresh of the memory content and keep it displayed.

 The energy-saving display method of the terminal in the embodiment of the present invention is described below with reference to a specific application:

 Embodiment 1:

 The technical solution of this embodiment is used to implement a low power consumption display mode of a picture browser, a text editor, and an electronic book of a terminal.

 As shown in FIG. 5, this embodiment includes the following steps:

 1) Launch the application after the software is registered: The energy-saving display device of the terminal registers the application such as the picture browser, text editor and e-book as the standby task retention mode in the system of the terminal, that is, the picture browser and the text editor before the system stands by. Applications such as e-books do not need to be forced to exit to get some wake-up events in standby;

 2) Control mode setting: The energy-saving display device of the terminal sets a standby wake-up event in the applications, such as an event such as touching a touch screen, a side button or a timer being triggered by the user, and setting these wake-up events in standby mode. Priority response permission; so that when the main processor is in standby, the user can complete the operation of clicking or turning the e-book by touching the touch screen and the side button, or automatically performing the page turning operation of the e-book after the timer is triggered;

 3) Display or save: The energy-saving display device of the terminal reads and saves the content to be displayed, or saves the response edit content;

 4) Pre-reading processing: The energy-saving display device of the terminal completes the pre-reading operation, and performs pre-standby setting, and mainly sets related registers such as a touch screen, a side key or a timer. After the setting is completed, the energy saving display device of the terminal sends a sleep command to the main processor, and the main processor enters a sleep state. At this time, although the main processor has been hibernated, the LCD screen always maintains the corresponding display content, such as an e-book page, during which the user can carefully check the current display content;

5) The main processor determines that there is a wake-up event and then returns to the state before sleep, otherwise it continues to sleep: after the user browses, touch the touch screen, the side button or the timer wake-up event occurs, the energy-saving display of the terminal The device sends a wake-up signal to the main processor, and the main processor is quickly woken up and restored to the pre-sleep state, in response to the display refresh operation, and the main processor sleeps again after the content is refreshed.

 Embodiment 2:

 The technical solution of this embodiment is used to implement a low power consumption display mode of a web browser of the terminal. Since the present invention can only be applied to static display content, the present embodiment only relates to the display of static content of a webpage, such as static text or pictures of a webpage; other dynamic content such as fksh and audio files on the webpage cannot be displayed or played.

 As shown in FIG. 6, the embodiment includes the following steps:

 1) The application is started after the software is registered: the energy-saving display device of the terminal registers the browser application as the standby task retention mode in the system of the terminal;

 2) Control mode setting: The energy-saving display device of the terminal sets the standby wake-up event in the browser application, such as the event that the user touches the touch screen, the side button or the timer is triggered as a wake-up event, and sets these wake-up events in standby mode. Priority response permissions. In this way, when the main processor is in standby, the user can complete the click or page turning operation of the webpage by touching the touch screen and the side keys, or automatically perform the page turning operation of the webpage after the timer is triggered;

 3) Modem (modem) synchronously downloads and caches web page data. After the download cache is completed, the main processor reads the cache data in batches. In order to make the main processor sleep longer, in this embodiment, the modem needs to be set to download the bulk cache mode;

 4) Dynamic data filtering: The energy-saving display device of the terminal filters out the dynamic data of the webpage or updates the dynamic data of the webpage into static data;

 5) the energy-saving display device of the terminal updates the display content;

6) The energy-saving display device of the terminal performs a sleep determination. If the user has no operation for a preset time, the sleep command is sent to the main processor, and the main processor is instructed to enter a sleep state. At this time, although the main processor has been hibernated, the LCD screen keeps the currently viewed page, during which the user browses the page; 7) The main processor determines that there is a wake-up event and then returns to the state before the hibernation, otherwise continues to sleep: after the user browses, the main processor can be woken up by the touch screen, the side button, etc., and the energy-saving display device of the terminal sends the wake-up signal to the main processing. The main processor is quickly woken up and restored to the pre-hibernation state, and a new page browsing and refresh operation is continued. After the content is refreshed, the main processor sleeps again.

 After the terminal enters the static display page, the technical solution of the embodiment of the present invention sends a sleep instruction to the main processor of the terminal, instructing the main processor to enter the sleep mode. In this way, when the terminal performs static display, the main processor stops running, leaving only the LCD module to work, and the display circuit of the LCD module maintains the display of the static picture by the drive circuit and the refresh mechanism of the LCD module, thereby minimizing the whole machine of the terminal. Power consumption.

 Many of the features described herein are referred to as modules to more particularly emphasize the independence of their implementation.

 In an embodiment of the invention, the modules may be implemented in software for execution by various types of processors. For example, an identified executable code module can comprise one or more physical or logical blocks of computer instructions, which can be constructed, for example, as an object, procedure, or function. Nonetheless, the executable code of the identified modules need not be physically located together, but may include different instructions stored in different physicalities. When these instructions are logically combined, they form a module and implement the specified purpose of the module. .

 In practice, the executable code module can be a single instruction or a plurality of instructions, and can even be distributed over a plurality of different code segments, distributed among different programs, and distributed across multiple memory devices. Likewise, operational data can be identified within the module and can be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.

When the module can be implemented in software, considering the level of the existing hardware process, it can In software-implemented modules, those skilled in the art can construct corresponding hardware circuits to implement corresponding functions without considering cost, and the hardware circuits include conventional ultra-large scale integration (VLSI) circuits or gate arrays and the like. Existing semiconductors such as logic chips, transistors, or other discrete components. Modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

 In the method embodiments of the present invention, the sequence numbers of the steps are not used to limit the sequence of the steps. For those skilled in the art, the steps of the steps are changed without any creative work. It is also within the scope of the invention.

 The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention. Industrial applicability

 After the terminal enters the static display page, the terminal sends a sleep command to the main processor of the terminal, instructing the main processor to enter the sleep mode; when the wake event occurs, sending a wake-up signal to the main processor, indicating the location The main processor exits the sleep state. In this way, when the terminal performs static display, the main processor stops running, and only the LCD module's own driving circuit and refresh mechanism maintain the display of the static picture, thereby minimizing the power consumption of the terminal.

Claims

Claim
 1. A method for displaying energy saving of a terminal, the method comprising:
 After the terminal enters the static display page, sending a sleep instruction to the main processor of the terminal, instructing the main processor to enter a sleep mode;
 When a wake-up event occurs, a wake-up signal is sent to the main processor instructing the main processor to exit the sleep state.
 The energy-saving display method of the terminal according to claim 1, wherein the wake-up event comprises: receiving an operation instruction input by a user, a timer of the terminal is triggered, and a sensor of the terminal is triggered.
 The method of claim 1 , wherein before the sending the sleep command to the main processor of the terminal, the method further includes:
 Acquiring and saving the static display content to be displayed, and displaying the static display content on the static display page.
 The method of claim 3, wherein after the sending of the wake-up signal to the main processor, the method further includes:
 Receiving a refresh page display content sent by the main processor, saving and displaying the refresh page display content;
 A sleep command is sent to the main processor of the terminal, instructing the main processor to enter a sleep mode.
5. An energy-saving display device for a terminal, the device comprising:
 Instructing the hibernation module to be configured to send a sleep command to the main processor of the terminal after the terminal enters the static display page, instructing the main processor to enter a sleep mode;
 The wake-up module is configured to send a wake-up signal to the main processor when the wake-up event occurs, instructing the main processor to exit the sleep state.
The energy-saving display device of the terminal according to claim 5, wherein the wake-up event comprises: receiving an operation instruction input by a user, triggering a timer of the terminal, and a sensor of the terminal Triggered.
 The energy-saving display device of the terminal according to claim 5, wherein the device further comprises:
 The processing module is configured to acquire and save the static display content to be displayed, and display the static display content on the static display page.
 8. The energy saving display device of the terminal according to claim 7, wherein
 The processing module is further configured to receive a refresh page display content sent by the main processor, and save and display the refresh page display content;
 The indication hibernation module is further configured to: after the processing module displays the refresh page display content, send a sleep instruction to the main processor of the terminal, instructing the main processor to enter a sleep mode.
 An LCD module, comprising the energy-saving display device of the terminal according to any one of claims 5-8.
 A terminal comprising the energy saving display device of the terminal according to any one of claims 5-8.
PCT/CN2013/081490 2012-11-14 2013-08-14 Energy-saving display method and device for terminal, lcd module, and terminal WO2014075473A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210456929.6 2012-11-14
CN201210456929.6A CN103810971B (en) 2012-11-14 2012-11-14 The energy-saving displaying method of terminal and device, LCD module, terminal

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CN107168508A (en) * 2017-04-26 2017-09-15 上海掌门科技有限公司 A kind of normal display information implementation method of low-power consumption and device
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CN107481692A (en) * 2017-09-05 2017-12-15 珠海格力电器股份有限公司 The display methods and equipment of a kind of section-type LCD

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