CN109980724B

CN109980724B - Method and device for charging double-screen mobile terminal, mobile terminal and storage medium

Info

Publication number: CN109980724B
Application number: CN201910247334.1A
Authority: CN
Inventors: 蒋权
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2021-12-17
Anticipated expiration: 2039-03-29
Also published as: CN109980724A

Abstract

The invention discloses a double-screen charging device and a using method thereof, and the double-screen charging device comprises a mobile terminal, wherein a main screen is arranged on the front side of the mobile terminal, an auxiliary screen is arranged on the back side of the mobile terminal, a USB interface is arranged on the bottom end of the mobile terminal, a main board, a battery, a USB platelet connected with the USB interface, an adaptation module, an electric quantity detection module and a charging time module are respectively arranged in the mobile terminal, a first charging IC, a main screen driving IC and an interface are respectively soldered on the main board, a second charging IC, an auxiliary screen driving IC and an interface are respectively soldered on the USB platelet, a USB charging module is arranged in the USB interface, and a screen display driving circuit and the charging IC are matched with each other in a matched charging mode through the working states of the main screen and the auxiliary screen, so that the temperature rise of a mobile phone can be effectively reduced, and the user experience is improved.

Description

Method and device for charging double-screen mobile terminal, mobile terminal and storage medium

Technical Field

The present invention relates to communications technologies, and in particular, to a method and an apparatus for charging a dual-screen mobile terminal, a mobile terminal, and a storage medium.

Background

With the development of science and technology, people have higher and higher requirements on mobile phones, smart phones occupy the main share of the market nowadays, and smart dual-screen mobile phones also become one of the hot spots. There are also many dual-screen mobile phones in the prior art, which basically include a main body and a main display screen disposed on an upper surface of the main body, wherein a display screen carrier is disposed outside the main body, and an auxiliary display screen electrically connected to the main display screen is disposed on the display screen carrier, and when in use, the main display screen and the auxiliary display screen are located on a plane to form a large screen. The structure of the mobile phone is improved by the double-screen mobile phone, but the use requirement of people on the double-screen mobile phone cannot be met, and the double-screen mobile phone has defects in the aspect of man-machine interaction. In addition, as for a smart phone, it is well known that the power consumption is large, and in the above dual-screen mobile phone, two screens are always in working states, which can greatly reduce the power consumption, which not only affects the use of users, but also affects the service life of the mobile phone

At present, mobile terminal equipment displays on the market mainly comprise a TFT (thin film transistor) display and an OLED (organic light emitting diode), the two screen displays need to be driven by a driving IC (integrated circuit), and the driving IC is generally integrated on an LCD (liquid crystal display) module and is positioned at the top or the bottom of the module. Normally, a mobile phone mainly has several heating sources, such as a CPU, a charging IC, and a screen display driving IC, and as LCD, LED, OLED technology, and Multi Touch technology are developed in the display field. High definition display screen, transparent display screen and multi-point touch become reality, and bluetooth wireless technology's development makes data transmission enter into wireless era, and wireless charging technology's development makes wireless charging possible, and current cell-phone generally adopts the single touch-control display screen that the LCD display screen combines capacitive screen or resistive screen to there are various jacks on the cell-phone: such as a USB jack, a charger jack and a headphone jack. The mobile phone has the defects of single display effect, various jacks and incapability of preventing water and dust.

Disclosure of Invention

The invention aims to provide a double-screen charging device and a using method thereof, which have the advantages that the charging mode is matched and adapted, the screen display driving circuit and the charging IC are matched in a crossed manner by a main heating source to realize bright screen charging, the temperature rise of a mobile phone can be effectively reduced, and the user experience is improved, so that the problems in the background technology are solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a double screen charging device, including mobile terminal, be equipped with the main screen on mobile terminal's the front, be equipped with vice screen on mobile terminal's the back, install the USB interface on mobile terminal's the bottom, mobile terminal installs mainboard, battery, the USB platelet that meets with the USB interface respectively, adaptation module, electric quantity detection module and charging time module, respectively the soldering has first IC and main screen drive IC and the interface of charging on the mainboard, respectively the soldering has second IC and vice screen drive IC and interface of charging on the USB platelet, be equipped with the USB module of charging in the USB interface.

Furthermore, the output end of the USB charging module is connected with the adapting module, the output end of the adapting module is respectively connected with the first charging IC and the second charging IC, the output end of the first charging IC is respectively connected with the main screen driving IC and the interface, the auxiliary screen driving IC and the interface, the output end of the second charging IC is respectively connected with the main screen driving IC and the interface, the auxiliary screen driving IC and the interface, the output ends of the main screen driving IC and the interface, the auxiliary screen driving IC and the interface are connected with the electric quantity detection module, and the output end of the electric quantity detection module is connected with the charging time module;

the USB charging module is used for directly taking out positive V voltage provided by the USB for supplying to a mobile phone battery after the USB interface is connected with a charger of the mobile phone, so that a power supply conversion circuit of the charger is omitted;

the first charging IC is used for managing a charging process of the main charging chip, charges the battery with proper current, and selectively supplies power to the main screen driving IC and the interface and/or the auxiliary screen driving IC and the interface generally through three stages of trickle charging, constant-current charging and constant-voltage charging;

the main screen driving IC and the interface are used for being connected with the main screen and establishing a charging matching relation with the first charging IC and the second charging IC, the main screen matching main charging chip is the first charging IC, and the auxiliary charging chip is the second charging IC;

the second charging IC is used for managing the charging process of the auxiliary charging chip, charges the battery with proper current, and selectively supplies power to the main screen driving IC and the interface and/or the auxiliary screen driving IC and the interface generally through three stages of trickle charging, constant-current charging and constant-voltage charging;

the auxiliary screen driving IC and the interface are used for being connected with the auxiliary screen and establishing a charging matching relation with the first charging IC and the second charging IC, the auxiliary screen matching charging chip is the second charging IC, and the auxiliary charging chip is the first charging IC;

the adaptive module is used for charging batteries according to different types of the current battery charging state of the main screen or trickle charging, constant-current charging and constant-voltage charging and automatically distributing the voltages and currents required by the batteries;

the electric quantity detection module is connected with a battery in the mobile terminal, measures the residual electric quantity in the battery and carries out quick charging;

and the charging time module displays the time required by charging according to the residual electric quantity in the battery and the use amount of the main screen and the auxiliary screen.

Preferably, the battery is electrically connected with the main screen, the auxiliary screen, the main board and the USB platelet through wires to supply power to the main screen, the auxiliary screen and the main board, and the USB interface charges the battery.

Preferably, the charging time module is connected with a main screen, and the charging time is displayed on the main screen.

Preferably, an LCD bias boosting voltage is further arranged on the USB small plate, and the LCD bias boosting voltage is a main screen voltage.

Preferably, the LCD bias boosting voltage on the main board is the auxiliary screen voltage.

Preferably, when the USB interface is plugged into the USB charger, the current display state of the main screen or the sub-screen is determined.

The invention provides another technical scheme, and a using method of the double-screen charging device comprises the following steps:

s1: when the mobile terminal detects that the USB charger is inserted, the mobile terminal judges that the current LCD is a main screen and is in a bright screen unlocking state, and then the mobile terminal obtains the matching charging IC relation, wherein the first charging IC is a main charging IC, and the second charging IC is an auxiliary charging IC.

S2: acquiring the current battery charging state, and if the current charging type is trickle charging, controlling a first charging IC as the current charging IC by the mobile terminal;

s3: if the current charging type is constant current charging, the mobile terminal controls the first charging IC to be a current main charging IC, and simultaneously controls the second charging IC to be a current auxiliary charging IC;

s4: and if the current charging type is constant voltage charging, the mobile terminal controls the first charging IC as the current charging IC.

Preferably, the charging manner of the main screen and the sub screen is changed with respect to the determination of the current state of the LCD at S1.

The invention also discloses a mobile terminal, which comprises a processor and a memory;

the memory is used for storing an executable program;

the processor is used for executing the executable program to realize the charging method of the dual-screen mobile terminal.

The invention also discloses a computer storage medium, wherein the computer storage medium stores an executable program, and the executable program is executed to realize the charging method for the double-screen mobile terminal.

Compared with the prior art, the invention has the beneficial effects that:

according to the double-screen charging device and the using method thereof, the working states of the main screen and the auxiliary screen are matched with the charging mode in a matched mode, the screen display driving circuit and the charging IC are matched in a crossed mode by the main heating source to realize bright screen charging, the temperature rise of a mobile phone can be effectively reduced, and the user experience is improved.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In the drawings, like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention;

fig. 2 is a diagram of a communication network system architecture according to an embodiment of the present invention;

FIG. 3 is a block diagram of a mobile terminal according to the present invention;

FIG. 4 is a rear view of the mobile terminal of the present invention;

fig. 5 is an internal diagram of the mobile terminal of the present invention;

fig. 6 is a block diagram of an apparatus for charging a mobile terminal according to the present invention.

In the figure: 1. a mobile terminal; 11. a main screen; 12. a secondary screen; 13. a USB interface; 131. a USB charging module; 2. a main board; 21. a first charging IC; 22. a main screen drive IC and an interface; 3. a battery; 4. a USB platelet; 41. a second charging IC; 42. a sub-screen drive IC and an interface; 5. an adaptation module; 6. an electric quantity detection module; 7. and a charging time module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. It should be noted that the detailed description set forth in connection with the appended drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The apparatus embodiments and method embodiments described herein are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, units, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. The terms first, second, etc. in the description and claims of the present invention and in the drawings of the specification, if used in describing various aspects, are used for distinguishing between different objects and not for describing a particular order.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.

Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.

The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.

Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.

The first embodiment is as follows:

referring to fig. 3-5, a dual-screen charging device includes a mobile terminal 1, a main screen 11 is disposed on a front surface of the mobile terminal 1, a sub-screen 12 is disposed on a back surface of the mobile terminal 1, a USB interface 13 is disposed on a bottom end of the mobile terminal 1, a main board 2, a battery 3, a USB platelet 4 connected to the USB interface 13, an adaptation module 5, a power detection module 6, and a charging time module 7 are respectively disposed inside the mobile terminal 1, the USB platelet 4 is further disposed with an LCD bias boosting voltage, the LCD bias boosting voltage is a voltage of the main screen 11, the LCD bias boosting voltage is a voltage of the sub-screen 12, the battery 3 is electrically connected to the main screen 11, the sub-screen 12, the main board 2, and the USB platelet 4 through wires to supply power to the main screen 11, the sub-screen 12, and the main board 2, the USB interface 13 charges the battery 3, the main board 2 is respectively soldered with a first charging IC21 and a main screen driving IC and the main screen interface 22, the USB small plate 4 is soldered with a second charging IC41, a sub-screen driving IC and an interface 42, and the USB interface 13 is provided with a USB charging module 131.

Referring to fig. 6, the output end of the USB charging module 131 is connected to the adapting module 5, when the USB interface 13 is plugged into the USB charger, the current display state of the main screen 11 or the sub-screen 12 is determined, the output end of the adapting module 5 is connected to the first charging IC21 and the second charging IC41, the output end of the first charging IC21 is connected to the main screen driving IC and interface 22 and the sub-screen driving IC and interface 42, the output end of the second charging IC41 is connected to the main screen driving IC and interface 22 and the sub-screen driving IC and interface 42, the output ends of the main screen driving IC and interface 22 and the sub-screen driving IC and interface 42 are connected to the electric quantity detection module 6, the output end of the electric quantity detection module 6 is connected to the charging time module 7, the charging time module 7 is connected to the main screen 11, and the charging time is displayed on the main screen 11;

the USB charging module 131 is used for directly taking out the positive 5V voltage provided by the USB and providing the voltage to the mobile phone battery 3 after the USB interface 13 is connected with a charger of the mobile phone, so that a power supply conversion circuit of the charger is omitted;

the first charging IC21 is used for the main charging chip to manage the charging process, and charges the battery with proper current, and generally supplies power to the main screen driving IC and the interface 22 and/or the auxiliary screen driving IC and the interface 42 selectively through three stages of trickle charging, constant current charging and constant voltage charging;

the main screen driving IC and the interface 22 are used for connecting with the main screen 11 and establishing a charging matching relationship with the first charging IC21 and the second charging IC41, the main screen 11 matches with the main charging chip as the first charging IC21, and the auxiliary charging chip is the second charging IC 41;

the second charging IC41 is used for the secondary charging chip to manage the charging process, and charges the battery with proper current, and generally supplies power to the main screen driving IC and the interface 22 and/or the secondary screen driving IC and the interface 42 selectively through three stages of trickle charging, constant current charging and constant voltage charging;

the auxiliary screen driving IC and the interface 42 are used for being connected with the auxiliary screen 12 and establishing a charging matching relationship with the first charging IC21 and the second charging IC41, the auxiliary screen 12 matching charging chip is the second charging IC41, and the auxiliary charging chip is the first charging IC 21;

the adaptation module 5 automatically distributes the voltage and the current required by the battery 3 according to different types of the current battery charging state of the main screen 11, trickle charging, constant-current charging and constant-voltage charging;

the electric quantity detection module 6 is connected with the battery 3 in the mobile terminal 1, measures the residual electric quantity in the battery 3 and carries out quick charging;

the charging time module 7 displays the time required for charging according to the amount of electricity remaining in the battery 3 and the amounts of use of the main screen 11 and the sub-screen 12.

the method comprises the following steps: when the mobile terminal 1 detects that a USB charger is inserted, the current state of the LCD is determined, the charging modes of the main screen 11 and the sub-screen 12 are changed, and the current LCD is determined to be the main screen 11 and in the bright screen unlocking state, so that the mobile terminal 1 obtains the matching charging IC relationship, the first charging IC21 is a main charging IC, and the second charging IC41 is an auxiliary charging IC.

Step two: acquiring the current charging state of the battery 3, and if the current charging type is trickle charging, controlling the first charging IC21 as the current charging IC by the mobile terminal 1;

step three: if the current charging type is the constant current charging, the mobile terminal controls the first charging IC21 as the current main charging IC, and simultaneously the mobile terminal 1 controls the second charging IC41 as the current auxiliary charging IC;

step four: if the current charging type is constant voltage charging, the mobile terminal 1 controls the first charging IC21 as the current charging IC.

Example two:

the method comprises the following steps: if the current display screen is the auxiliary screen 12, the mobile terminal 1 acquires the matching charging IC relationship, the second charging IC41 is the main charging IC, and the first charging IC21 is the auxiliary charging IC.

Step two: acquiring the current charging state of the battery 3, and if the current charging type is trickle charging, controlling the second charging IC41 as the current charging IC by the mobile terminal 1;

step three: if the current charging type is the constant current charging, the mobile terminal controls the second charging IC41 as the current main charging IC, and simultaneously the mobile terminal 1 controls the first charging IC21 as the current auxiliary charging IC;

step four: if the current charging type is the constant voltage charging, the mobile terminal 1 controls the second charging IC41 as the current charging IC.

According to the design scheme, the screen display driving circuit and the charging IC are alternately matched to realize bright screen charging according to the main heating source, so that the temperature rise of the mobile phone can be effectively reduced, and the user experience is improved.

EXAMPLE III

This implementation discloses a device that charges to double screen mobile terminal, be equipped with the main screen on mobile terminal's the front, be equipped with the auxiliary screen on mobile terminal's the back, install the USB interface on mobile terminal's the bottom, mobile terminal's inside installs mainboard, battery, the USB platelet that meets with the USB interface respectively, adaptation module, electric quantity detection module and charging time module, respectively the soldering has first IC and the main screen drive IC and the interface of charging on the mainboard, respectively the soldering has second IC and the auxiliary screen drive IC and the interface of charging on the USB platelet, be equipped with the USB charging module in the USB interface.

the USB charging module is used for directly taking out the positive 5V voltage provided by the USB for supplying to a mobile phone battery after the USB interface is connected with a charger of the mobile phone, so that a power supply conversion circuit of the charger is omitted;

Furthermore, the battery is respectively and electrically connected with the main screen, the auxiliary screen, the main board and the USB platelet through leads to supply power for the main screen, the auxiliary screen and the main board, and the USB interface charges the battery.

Furthermore, the charging time module is connected with the main screen, and the charging time is displayed on the main screen.

Furthermore, an LCD bias boosting voltage is arranged on the USB small plate, and the LCD bias boosting voltage is a main screen voltage.

Furthermore, the LCD on the main board biases the boosted voltage, and the LCD biases the boosted voltage to be the auxiliary screen voltage.

Furthermore, when the USB interface is inserted into the USB charger, the current display state of the main screen or the auxiliary screen is judged.

The embodiment also discloses a method for charging the double-screen mobile terminal, which comprises the following steps: when the mobile terminal detects that a USB charger is inserted, the mobile terminal judges that the current LCD is in a main screen and in a bright screen unlocking state, the mobile terminal obtains a matched charging IC relation, the first charging IC is a main charging IC, the second charging IC is an auxiliary charging IC, the current LCD state is judged, and the charging modes of the main screen and the auxiliary screen are changed; acquiring the current battery charging state, and if the current charging type is trickle charging, controlling a first charging IC as the current charging IC by the mobile terminal; if the current charging type is constant current charging, the mobile terminal controls the first charging IC to be a current main charging IC, and simultaneously controls the second charging IC to be a current auxiliary charging IC; and if the current charging type is constant voltage charging, the mobile terminal controls the first charging IC as the current charging IC.

The embodiment also discloses a mobile terminal, which comprises a processor and a memory;

the memory is used for storing an executable program;

The embodiment also discloses a computer storage medium, wherein the computer storage medium stores an executable program, and the executable program is executed to realize the charging method for the double-screen mobile terminal

In summary, according to the double-screen charging device and the use method thereof, the working states of the main screen and the auxiliary screen are matched with the adaptive charging mode, the screen display driving circuit and the charging IC are crossed and matched by the main heating source to realize bright screen charging, the temperature rise of the mobile phone can be effectively reduced, and the user experience is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. A device for charging a double-screen mobile terminal is characterized in that a main screen is arranged on the front side of the mobile terminal, an auxiliary screen is arranged on the back side of the mobile terminal, a USB interface is arranged on the bottom end of the mobile terminal, a main board, a battery, a USB small plate connected with the USB interface, an adaptation module, an electric quantity detection module and a charging time module are respectively arranged in the mobile terminal, a first charging IC, a main screen driving IC and an interface are respectively soldered on the main board, a second charging IC, an auxiliary screen driving IC and an interface are respectively soldered on the USB small plate, and a USB charging module is arranged in the USB interface;

the output end of the USB charging module is connected with the adapting module, the output end of the adapting module is respectively connected with a first charging IC and a second charging IC, the output end of the first charging IC is respectively connected with the main screen driving IC and the interface, the auxiliary screen driving IC and the interface, the output end of the second charging IC is respectively connected with the main screen driving IC and the interface, the auxiliary screen driving IC and the interface, the output ends of the main screen driving IC and the interface, the auxiliary screen driving IC and the interface are connected with the electric quantity detection module, and the output end of the electric quantity detection module is connected with the charging time module;

the USB charging module is used for being connected with a charger through a USB interface;

the first charging IC is used for managing the charging process of the main charging chip so as to supply power to the main screen driving IC and the interface and/or the auxiliary screen driving IC and the interface;

the main screen driving IC and the interface are used for being connected with the main screen and establishing a charging matching relation with the first charging IC and the second charging IC;

the second charging IC is used for managing the charging process of the auxiliary charging chip so as to supply power to the main screen driving IC and the interface and/or the auxiliary screen driving IC and the interface;

the auxiliary screen driving IC and the interface are used for being connected with the auxiliary screen and establishing a charging matching relation with the first charging IC and the second charging IC;

the adaptation module distributes voltage and current required by the battery according to the type of the current battery charging state of the main screen;

the electric quantity detection module is connected with the battery and is used for measuring the residual electric quantity in the battery;

and the charging time module displays the charging time according to the residual electric quantity in the battery and the usage amount of the main screen and the auxiliary screen.

2. The apparatus for charging a dual-screen mobile terminal according to claim 1, wherein: the battery is respectively and electrically connected with the main screen, the auxiliary screen, the main board and the USB platelet through wires to supply power for the main screen, the auxiliary screen and the main board, and the USB interface charges the battery.

3. The apparatus for charging a dual-screen mobile terminal according to claim 1, wherein: the charging time module is connected with the main screen, and charging time is displayed on the main screen.

4. The apparatus for charging a dual-screen mobile terminal according to claim 1, wherein: and an LCD bias boosting voltage is also arranged on the USB small plate, and is a main screen voltage.

5. The apparatus for charging a dual-screen mobile terminal according to claim 1, wherein: and the LCD bias boosting voltage on the main board is the auxiliary screen voltage.

6. The apparatus for charging a dual-screen mobile terminal according to claim 1, wherein: and when the USB interface is inserted into the USB charger, judging the current display state of the main screen or the auxiliary screen.

7. A charging method for a dual-screen mobile terminal, applied to the apparatus for charging a dual-screen mobile terminal according to any one of claims 1 to 6, comprising: when the mobile terminal detects that a USB charger is inserted, the mobile terminal judges that the current LCD is in a main screen and in a bright screen unlocking state, the mobile terminal obtains a matched charging IC relation, the first charging IC is a main charging IC, the second charging IC is an auxiliary charging IC, the current LCD state is judged, and the charging modes of the main screen and the auxiliary screen are changed; acquiring the current battery charging state, and if the current charging type is trickle charging, controlling a first charging IC as the current charging IC by the mobile terminal; if the current charging type is constant current charging, the mobile terminal controls the first charging IC to be a current main charging IC, and simultaneously controls the second charging IC to be a current auxiliary charging IC; and if the current charging type is constant voltage charging, the mobile terminal controls the first charging IC as the current charging IC.

8. A mobile terminal, characterized in that the mobile terminal comprises a processor and a memory;

the memory is used for storing an executable program;

the processor is configured to execute the executable program to implement the method of charging the dual-screen mobile terminal as claimed in claim 7.

9. A computer storage medium having stored thereon an executable program that when executed performs the method of charging a dual screen mobile terminal as claimed in claim 7.