CN109617009A - Method for controlling power supply, device and the storage medium of display screen - Google Patents
Method for controlling power supply, device and the storage medium of display screen Download PDFInfo
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- CN109617009A CN109617009A CN201811537269.8A CN201811537269A CN109617009A CN 109617009 A CN109617009 A CN 109617009A CN 201811537269 A CN201811537269 A CN 201811537269A CN 109617009 A CN109617009 A CN 109617009A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means
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Abstract
This application discloses a kind of method for controlling power supply of display screen, device and storage medium, applied to mobile terminal, wherein the mobile terminal includes display screen and power supply, the display screen has signal input part, the power supply is electrically connected with the signal input part, to provide driving voltage to the display screen, by determining the input current at the signal input part, and judge whether the input current is more than predetermined current threshold, if, then detect the duration that the input current is more than the predetermined current threshold, when the duration is greater than preset duration, disconnect being electrically connected between the power supply and signal input part, so as to be cut off the power supply according to the abnormal phenomenon of display screen supply current in time, short circuit occurs for effectively prevention display screen, reduce the damage frequency of display screen, method is simple, it is practical.
Description
Technical field
This application involves fields of communication technology more particularly to a kind of method for controlling power supply of display screen, device and storage to be situated between
Matter.
Background technique
With the development of mobile communication, the popularization degree of smart phone is higher and higher, and function is also stronger and stronger, however with
Cell-phone function it is powerful, the requirement of performance and mainboard to mobile phone display screen is also higher and higher.
To reach display effect most preferably, existing smart phone is all made of large scale, high definition, high-resolution display screen,
And the control logic that the display screen is controlled in mainboard is also relatively complicated, is easy to appear control logic error phenomenon, works as display
When the control logic error of screen, driving voltage, the electric current that display screen can be made to receive are incorrect, and display is easily led to after the time is longer
The short circuit of subsidiary peripheral control circuits, is finally damaged this part display screen, can not show on screen.
Summary of the invention
The embodiment of the present application provides the method for controlling power supply, device and storage medium of a kind of display screen, can effectively prevent to show
The generation of display screen short circuit phenomenon reduces the damage frequency of display screen.
The embodiment of the present application provides a kind of method for controlling power supply of display screen, is applied to mobile terminal, described mobile whole
End includes display screen and power supply, and the display screen has signal input part, and the power supply is electrically connected with the signal input part, with
Driving voltage is provided to the display screen；The method for controlling power supply includes:
Determine the input current at the signal input part；
Judge whether the input current is more than predetermined current threshold；
If so, detecting the duration that the input current is more than the predetermined current threshold；
When the duration is greater than preset duration, being electrically connected between the power supply and signal input part is disconnected, with
Stop providing driving voltage to the display screen.
The embodiment of the present application also provides a kind of power supply control apparatus of display screen, are applied to mobile terminal, the movement
Terminal includes display screen and power supply, and the display screen has signal input part, and the power supply is electrically connected with the signal input part,
To provide driving voltage to the display screen；The power supply control apparatus includes:
Determining module, for determining the input current at the signal input part；
Judgment module, for judging whether the input current is more than predetermined current threshold；
Detection module, for if so, detecting the duration that the input current is more than the predetermined current threshold；
Disconnect module, for when the duration is greater than preset duration, disconnect the power supply and signal input part it
Between electrical connection, with stop to the display screen provide driving voltage.
The embodiment of the present application also provides a kind of computer readable storage medium, a plurality of finger is stored in the storage medium
It enables, described instruction is suitable for being loaded by processor to execute the method for controlling power supply of any of the above-described display screen.
Method for controlling power supply, device and the storage medium of display screen provided by the present application are applied to mobile terminal, wherein should
Mobile terminal includes display screen and power supply, which has signal input part, which is electrically connected with the signal input part, with
Driving voltage is provided to the display screen, by determining the input current at the signal input part, and whether judges the input current
More than predetermined current threshold, if so, the duration that the input current is more than the predetermined current threshold is detected, when this continues
When length is greater than preset duration, being electrically connected between the power supply and signal input part is disconnected, so as to power in time according to display screen
The abnormal phenomenon of electric current is cut off the power supply, effectively prevents display screen and short circuit occurs, and reduces the damage frequency of display screen, method letter
It is single, it is practical.
Detailed description of the invention
With reference to the accompanying drawing, it is described in detail by the specific embodiment to the application, the technical solution of the application will be made
And other beneficial effects are apparent.
Fig. 1 is the flow diagram of the method for controlling power supply of display screen provided by the embodiments of the present application.
Fig. 2 is the access schematic diagram of current detection circuit in mobile terminal provided by the embodiments of the present application.
Fig. 3 is another flow diagram of the method for controlling power supply of display screen provided by the embodiments of the present application.
Fig. 4 is the structural schematic diagram of the power supply control apparatus of display screen provided by the embodiments of the present application.
Fig. 5 is the structural schematic diagram of determining module provided by the embodiments of the present application.
Fig. 6 is the structural schematic diagram of mobile terminal provided by the embodiments of the present application.
Fig. 7 is another structural schematic diagram of mobile terminal provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall in the protection scope of this application.
A kind of method for controlling power supply of display screen is applied to mobile terminal, which includes display screen and power supply, is somebody's turn to do
Display screen has signal input part, which is electrically connected with the signal input part, to provide driving voltage to the display screen；The confession
Electric control method comprises determining that the input current at the signal input part；Judge whether the input current is more than predetermined current threshold
Value；If so, detecting the duration that the input current is more than the predetermined current threshold；When the duration is greater than preset duration
When, being electrically connected between the power supply and signal input part is disconnected, to stop providing driving voltage to the display screen.
As shown in Figure 1, Fig. 1 is the flow diagram of the method for controlling power supply of display screen provided by the embodiments of the present application,
Applied to mobile terminal, which includes display screen and power supply, which has signal input part, the power supply and the letter
The electrical connection of number input terminal, to provide driving voltage to the display screen, the detailed process of the method for controlling power supply be can be such that
S101. the input current at the signal input part is determined.
In the present embodiment, the drive voltage signal which provides in addition to receiving power supply, also reception mobile terminal
The signal that other function component transmits, mobile terminal can pass through when whether the control logic for measuring display screen malfunctions
Whether the electric current at detection signal input part is abnormal to determine.
Wherein, which can be acquired by current detection circuit namely the mobile terminal can also include that electric current is examined
Slowdown monitoring circuit, the current detection circuit are electrically connected with the signal input part, for detecting the input current at the signal input part；It should
Current detection circuit may include the first circuit branch being connected in parallel and second circuit branch, which includes phase
The first fixed value resistance and the second fixed value resistance being mutually connected in series；The second circuit branch includes that the third being connected in series with each other is determined
It is worth resistance and mistor, second fixed value resistance and mistor ground connection, the mistor are used for according to size of current to certainly
Body resistance value is adjusted.
It should be noted that current detection circuit can be real-time perfoming to the detection of input current, it is also possible to week
Phase property carries out, or triggers progress manually after some key being also possible on user's click mobile terminal.
At this point, above-mentioned steps S101 can specifically include:
1-1. determines the target of the mistor according to first fixed value resistance, the second fixed value resistance and third fixed value resistance
Resistance value.
In the present embodiment, which is a kind of pair of magnetic susceptibility, the resistive element with magnetoresistance, when signal inputs
When total current at end changes, the electric current for flowing through the mistor can be caused to change, the change which generates
Magnetizing field can make the resistance value of mistor occur accordingly to adjust, for example magnetic field is stronger, and the resistance value of mistor is bigger.
Further, above-mentioned steps 1-1 can specifically include:
Obtain the first resistance value of first fixed value resistance, the second resistance value of second fixed value resistance and the third definite value electricity
The third resistance value of resistance；
The detection first voltage being applied on second fixed value resistance and the second electricity being applied on the mistor
Pressure；
According to the first voltage, second voltage, the first resistance value, the second resistance value and the third computing the resistor value mistor
Target resistance values.
In the present embodiment, Fig. 2 is referred to, it is fixed that the first fixed value resistance R1, the second fixed value resistance R2, third are shown in Fig. 2
It is worth resistance R3 and mistor R4, target resistance values R4 can be calculated by following formula:
V12=R2*VD/ (R1+R2),
V34=R4*VD/ (R3+R4),
To obtain R4=V34*R2*R3/ (V12* (R1+R2)-V34*R2),
Wherein, VD is the voltage (unknown) at signal input part, and V12 is first voltage, namely to the first fixed value resistance R1
The voltage that any point between R2 measures, V34 are second voltage, namely to third fixed value resistance R3 and mistor R4 it
Between the voltage that measures of any point.The numerical values recited of R1, R2 and R3 can be taking human as being set in advance, to each other can be identical or not
Together.
1-2. obtains pre-set current value corresponding with the target resistance values.
In the present embodiment, which, which can be, has been set in advance, for example user can first pass through a large amount of realities in advance
It tests, determines field supply corresponding to the different resistance values of mistor, and generate the corresponding pass of the resistance value and field supply
Series of tables can determine that true field electric current is (namely real by the actual resistance of mistor from the relation list later
The pre-set current value that border obtains) or the pre-set current value can also be calculated by specified formula, the specified formula is main
It is the resistance value size of mistor and the relational expression of field supply size.
1-3. determines the input current at the signal input part according to the pre-set current value of acquisition.
For example, above-mentioned steps 1-3 can specifically include:
The first electric current in first circuit branch is determined according to second fixed value resistance；
The sum of first electric current and pre-set current value are calculated, the input current at the signal input part is obtained.
In the present embodiment, the input current at the signal input part is equivalent to the first circuit branch and second circuit branch
Electric current summation, it is evident that the electric current that the electric current (namely predetermined current) at mistor R4 is equal to second circuit branch road is flowed through,
The electric current that the electric current at the second fixed value resistance R2 is equal in the first circuit branch is flowed through, and flows through the electricity at the second fixed value resistance R2
Stream can be calculated by formula V12/R2.
It should be pointed out that other fixed value resistances can also be arranged in first circuit branch and second circuit branch road, it should
Current detection circuit can also include other circuit branch, specifically in addition to including first circuit branch and second circuit branch
Can according to the actual situation depending on, herein without limitation.
S102. judge whether the input current is more than predetermined current threshold, if so, following step S103 is executed, if it is not,
Then re-execute above-mentioned steps S101.
In the present embodiment, which can be manually set, and the electric current for being mainly used for defining input panel is
No appearance is abnormal.
S103. the duration that the input current is more than the predetermined current threshold is detected.
In the present embodiment, when input current occurs abnormal, when can star clocking capability and detecting the abnormal phenomenon and continue
Long, in timing course, once abnormal phenomenon disappears (namely input current is less than or equal to predetermined current threshold), institute's timing is long
It should reset, to reduce the generation of erroneous judgement, and re-execute above-mentioned steps S101.
S104. when the duration is greater than preset duration, being electrically connected between the power supply and signal input part is disconnected, with
Stop providing driving voltage to the display screen.
In the present embodiment, which can consider setting, such as 5 seconds.When detecting the input at signal input part
When the duration that electric current is abnormal is longer, it is believed that the control logic of display screen has malfunctioned, to avoid further causing
The short circuit of zero device, needs to disconnect being electrically connected between power supply and display screen inside display screen, to stop continuing supplying to display screen
Answer driving voltage.
It can be seen from the above, the method for controlling power supply of display screen provided in this embodiment, is applied to mobile terminal, the wherein shifting
Dynamic terminal includes display screen and power supply, which has signal input part, which is electrically connected with the signal input part, with to
The display screen provides driving voltage, by determining the input current at the signal input part, and judges whether the input current surpasses
Predetermined current threshold is crossed, if so, the duration that the input current is more than the predetermined current threshold is detected, when the duration
When greater than preset duration, being electrically connected between the power supply and signal input part is disconnected, it is electric so as to be powered in time according to display screen
The abnormal phenomenon of stream is cut off the power supply, effectively prevents display screen and short circuit occurs, and reduces the damage frequency of display screen, method letter
It is single, it is practical.
In the present embodiment, the angle of the power supply control apparatus from display screen is described, it specifically will be with the display screen
Power supply control apparatus it is integrated in the terminal for be described in detail.
Fig. 3 is referred to, a kind of method for controlling power supply of display screen is applied to mobile terminal, which includes display
Screen, power supply and current detection circuit, the display screen have signal input part, which is electrically connected with the signal input part, with to
The display screen provides driving voltage；The current detection circuit is electrically connected with the signal input part, for detecting the signal input part
The input current at place；The current detection circuit may include the first circuit branch being connected in parallel and second circuit branch, this
One circuit branch includes the first fixed value resistance and the second fixed value resistance being connected in series with each other；The second circuit branch includes mutual
The third fixed value resistance and mistor of series connection, second fixed value resistance and mistor ground connection, the mistor are used for
Self-resistance value is adjusted according to size of current.
The detailed process of the method for controlling power supply can be such that
S201. the first resistance value of the first fixed value resistance of acquisition for mobile terminal, the second resistance value of the second fixed value resistance and
The third resistance value of three fixed value resistances, and detect the first voltage being applied on second fixed value resistance and be applied to magnetosensitive electricity
Second voltage in resistance.
S202. mobile terminal is according to the first voltage, second voltage, the first resistance value, the second resistance value and third resistance value meter
Calculate the target resistance values of the mistor.
For example, in Fig. 2, for the first fixed value resistance R1, the second fixed value resistance R2, third fixed value resistance R3 and magnetosensitive
Resistance R4 can calculate target resistance values R4 by following formula:
V12=R2*VD/ (R1+R2),
V34=R4*VD/ (R3+R4),
To obtain R4=V34*R2*R3/ (V12* (R1+R2)-V34*R2),
Wherein, VD is the voltage (unknown) at signal input part, and V12 is first voltage, namely to the first fixed value resistance R1
The voltage that any point between R2 measures, V34 are second voltage, namely to third fixed value resistance R3 and mistor R4 it
Between the voltage that measures of any point.The numerical values recited of R1, R2 and R3 can be taking human as being set in advance, to each other can be identical or not
Together.
S203. acquisition for mobile terminal pre-set current value corresponding with the target resistance values, it is true according to second fixed value resistance
The first electric current in fixed first circuit branch.
For example, user can first pass through many experiments in advance, determine the electricity of magnetic field corresponding to the different resistance values of mistor
Stream, and generates the corresponding relationship list of the resistance value and field supply, later can by the actual resistance of mistor from
True field electric current (namely the pre-set current value actually obtained) is determined in the relation list, and first electric current can pass through public affairs
Formula V 12/R2 is calculated.
S204. mobile terminal calculates the sum of first electric current and pre-set current value, obtains the input at the signal input part
Electric current, and judge whether the input current is more than predetermined current threshold, if so, following step S205 is executed, if it is not, then again
Execute above-mentioned steps S201.
For example, which can be I0, can be I1 by looking into the pre-set current value that relation list obtains, then
Input current I are as follows: I=I1+V12/R2, as I > I0, it is believed that exception occur, as I≤I0, it is believed that in just
Normal state.
S205. mobile terminal detects duration of the input current more than the predetermined current threshold, and judges that this continues
Whether duration is greater than preset duration, if so, being electrically connected between the power supply and signal input part is disconnected, to stop to the display
Screen provides driving voltage, if it is not, then re-executing above-mentioned steps S201.
For example, preset duration T0 can be 5 seconds of artificial settings, as duration t > T0, can disconnect power supply with
Electrical connection between display screen, as t≤T0, can restart to detect to stop powering to display screen.
The method according to described in above-described embodiment, the present embodiment will be from the angles of the power supply control apparatus of display screen into one
Step is described, and the power supply control apparatus of the display screen can be used as independent entity specifically to realize, which can be with
Including mobile phone, tablet computer etc..
Referring to Fig. 4, the power supply control apparatus of display screen provided by the embodiments of the present application has been described in detail in Fig. 4, it is applied to
Mobile terminal, wherein the mobile terminal includes display screen and power supply, which has signal input part, the power supply and the signal
Input terminal electrical connection, to provide driving voltage to the display screen；The power supply control apparatus of the display screen may include: determining module
10, judgment module 20, detection module 30 and disconnection module 40, in which:
(1) determining module 10
Determining module 10, for determining the input current at the signal input part.
In the present embodiment, the drive voltage signal which provides in addition to receiving power supply, also reception mobile terminal
The signal that other function component transmits, mobile terminal can pass through when whether the control logic for measuring display screen malfunctions
Whether the electric current at detection signal input part is abnormal to determine.
Wherein, which can be acquired by current detection circuit namely the mobile terminal can also include that electric current is examined
Slowdown monitoring circuit, the current detection circuit are electrically connected with the signal input part, for detecting the input current at the signal input part；It should
Current detection circuit may include the first circuit branch being connected in parallel and second circuit branch, which includes phase
The first fixed value resistance and the second fixed value resistance being mutually connected in series；The second circuit branch includes that the third being connected in series with each other is determined
It is worth resistance and mistor, second fixed value resistance and mistor ground connection, the mistor are used for according to size of current to certainly
Body resistance value is adjusted.
It should be noted that current detection circuit can be real-time perfoming to the detection of input current, it is also possible to week
Phase property carries out, or triggers progress manually after some key being also possible on user's click mobile terminal.
At this point, referring to Fig. 5, which can specifically include the first determination unit 11, acquiring unit 12 and
Two determination units 13, in which:
First determination unit 11, for being determined according to first fixed value resistance, the second fixed value resistance and third fixed value resistance
The target resistance values of the mistor.
In the present embodiment, which is a kind of pair of magnetic susceptibility, the resistive element with magnetoresistance, when signal inputs
When total current at end changes, the electric current for flowing through the mistor can be caused to change, the change which generates
Magnetizing field can make the resistance value of mistor occur accordingly to adjust, for example magnetic field is stronger, and the resistance value of mistor is bigger.
Further, which specifically can be used for:
Obtain the first resistance value of first fixed value resistance, the second resistance value of second fixed value resistance and the third definite value electricity
The third resistance value of resistance；
The detection first voltage being applied on second fixed value resistance and the second electricity being applied on the mistor
Pressure；
According to the first voltage, second voltage, the first resistance value, the second resistance value and the third computing the resistor value mistor
Target resistance values.
In the present embodiment, Fig. 2 is referred to, it is fixed that the first fixed value resistance R1, the second fixed value resistance R2, third are shown in Fig. 2
It is worth resistance R3 and mistor R4, target resistance values R4 can be calculated by following formula:
V12=R2*VD/ (R1+R2),
V34=R4*VD/ (R3+R4),
To obtain R4=V34*R2*R3/ (V12* (R1+R2)-V34*R2),
Wherein, VD is the voltage (unknown) at signal input part, and V12 is first voltage, namely to the first fixed value resistance R1
The voltage that any point between R2 measures, V34 are second voltage, namely to third fixed value resistance R3 and mistor R4 it
Between the voltage that measures of any point.The numerical values recited of R1, R2 and R3 can be taking human as being set in advance, to each other can be identical or not
Together.
Acquiring unit 12, for obtaining pre-set current value corresponding with the target resistance values.
In the present embodiment, which, which can be, has been set in advance, for example user can first pass through a large amount of realities in advance
It tests, determines field supply corresponding to the different resistance values of mistor, and generate the corresponding pass of the resistance value and field supply
Series of tables can determine that true field electric current is (namely real by the actual resistance of mistor from the relation list later
The pre-set current value that border obtains) or the pre-set current value can also be calculated by specified formula, the specified formula is main
It is the resistance value size of mistor and the relational expression of field supply size.
Second determination unit 13 determines the electricity of the input at the signal input part for the pre-set current value according to acquisition
Stream.
Further, which specifically can be used for:
The first electric current in first circuit branch is determined according to second fixed value resistance；
The sum of first electric current and pre-set current value are calculated, the input current at the signal input part is obtained.
In the present embodiment, the input current at the signal input part is equivalent to the first circuit branch and second circuit branch
Electric current summation, it is evident that the electric current that the electric current (namely predetermined current) at mistor R4 is equal to second circuit branch road is flowed through,
The electric current that the electric current at the second fixed value resistance R2 is equal in the first circuit branch is flowed through, and flows through the electricity at the second fixed value resistance R2
Stream can be calculated by formula V12/R2.
It should be pointed out that other fixed value resistances can also be arranged in first circuit branch and second circuit branch road, it should
Current detection circuit can also include other circuit branch, specifically in addition to including first circuit branch and second circuit branch
Can according to the actual situation depending on, herein without limitation.
(2) judgment module 20
Judgment module 20, for judging whether the input current is more than predetermined current threshold.
In the present embodiment, which can be manually set, and the electric current for being mainly used for defining input panel is
No appearance is abnormal.
(3) detection module 30
Detection module 30, for if so, detecting the duration that the input current is more than the predetermined current threshold.
In the present embodiment, when input current occurs abnormal, when can star clocking capability and detecting the abnormal phenomenon and continue
Long, in timing course, once abnormal phenomenon disappears (namely input current is less than or equal to predetermined current threshold), institute's timing is long
It should reset, to reduce the generation of erroneous judgement, and restart to detect input current situation.
(4) module 40 is disconnected
Module 40 is disconnected, for disconnecting between the power supply and signal input part when the duration is greater than preset duration
Electrical connection, with stop to the display screen provide driving voltage.
In the present embodiment, which can consider setting, such as 5 seconds.When detecting the input at signal input part
When the duration that electric current is abnormal is longer, it is believed that the control logic of display screen has malfunctioned, to avoid further causing
The short circuit of zero device, needs to disconnect being electrically connected between power supply and display screen inside display screen, to stop continuing supplying to display screen
Answer driving voltage.
When it is implemented, above each unit can be used as independent entity to realize, any combination can also be carried out, is made
It is realized for same or several entities, the specific implementation of above each unit can be found in the embodiment of the method for front, herein not
It repeats again.
It can be seen from the above, the method for controlling power supply of display screen provided in this embodiment, is applied to mobile terminal, the wherein shifting
Dynamic terminal includes display screen and power supply, which has signal input part, which is electrically connected with the signal input part, with to
The display screen provides driving voltage, determines that the input current at the signal input part, judgment module 20 are sentenced by determining module 10
Whether the input current that breaks is more than predetermined current threshold, if so, it is more than the default electricity that detection module 30, which detects the input current,
The duration for flowing threshold value disconnects module 40 and disconnects the power supply and signal input part when the duration is greater than preset duration
Between electrical connection, so as to be cut off the power supply according to the abnormal phenomenon of display screen supply current in time, effectively prevention display
Short circuit occurs for screen, reduces the damage frequency of display screen, method is simple, practical.
In addition, the embodiment of the present application also provides a kind of mobile terminal, which can be smart phone, tablet computer
Etc. equipment.As shown in fig. 6, mobile terminal 200 includes processor 201, memory 202.Wherein, processor 201 and memory 202
It is electrically connected.
Processor 201 is the control centre of mobile terminal 200, utilizes various interfaces and the entire mobile terminal of connection
Various pieces by the application program of operation or load store in memory 202, and are called and are stored in memory 202
Data, execute mobile terminal various functions and processing data, thus to mobile terminal carry out integral monitoring.
In the present embodiment, processor 201 in mobile terminal 200 can according to following step, by one or one with
On the corresponding instruction of process of application program be loaded into memory 202, and be stored in memory by processor 201 to run
Application program in 202, to realize various functions:
Determine the input current at the signal input part；
Judge whether the input current is more than predetermined current threshold；
If so, detecting the duration that the input current is more than the predetermined current threshold；
When the duration is greater than preset duration, being electrically connected between the power supply and signal input part is disconnected, to stop
Driving voltage is provided to the display screen.
Fig. 7 shows the specific block diagram of mobile terminal provided in an embodiment of the present invention, which can be used for
The method for controlling power supply of the display screen provided in above-described embodiment is provided.The mobile terminal 300 can be smart phone or plate
Computer.
RF circuit 310 realizes the mutual conversion of electromagnetic wave and electric signal, thus with logical for receiving and transmitting electromagnetic wave
News network or other equipment are communicated.RF circuit 310 may include various existing for executing the circuit elements of these functions
Part, for example, antenna, RF transceiver, digital signal processor, encryption/deciphering chip, subscriber identity module (SIM) card, storage
Device etc..RF circuit 310 can carry out communicating or by wireless with various networks such as internet, intranet, wireless network
Network is communicated with other equipment.Above-mentioned wireless network may include cellular telephone networks, WLAN or Metropolitan Area Network (MAN).
Various communication standards, agreement and technology, including but not limited to global system for mobile communications can be used in above-mentioned wireless network
(Global System for Mobile Communication, GSM), enhanced mobile communication technology (Enhanced Data
GSM Environment, EDGE), Wideband CDMA Technology (Wideband Code Division Multiple
Access, WCDMA), Code Division Multiple Access (Code Division Access, CDMA), time division multiple access technology (Time
Division Multiple Access, TDMA), adopting wireless fidelity technology (Wireless Fidelity, Wi-Fi) (such as U.S.'s electricity
Gas and Electronic Engineering Association standard IEEE 802.11a, IEEE 802.11b, IEEE802.11g and/or IEEE 802.11n),
The networking telephone (Voice over Internet Protocol, VoIP), worldwide interoperability for microwave accesses (Worldwide
Interoperability for Microwave Access, Wi-Max), other are for mail, instant messaging and short message
Agreement and any other suitable communications protocol, or even may include the agreement that those are not developed currently yet.
Memory 320 can be used for storing software program and module, as front camera is taken pictures automatically in above-described embodiment
Corresponding program instruction/the module of light-supplementing system, method, the software program that processor 380 is stored in memory 320 by operation
And module, thereby executing various function application and data processing, i.e. the realization front camera function of taking pictures automatic light-supplementing.
Memory 320 may include high speed random access memory, may also include nonvolatile memory, as one or more magnetic storage fills
It sets, flash memory or other non-volatile solid state memories.In some instances, memory 320 can further comprise relative to place
The remotely located memory of device 380 is managed, these remote memories can pass through network connection to mobile terminal 300.Above-mentioned network
Example include but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
Input unit 330 can be used for receiving the number or character information of input, and generate and user setting and function
Control related keyboard, mouse, operating stick, optics or trackball signal input.Specifically, input unit 330 may include touching
Sensitive surfaces 331 and other input equipments 332.Touch sensitive surface 331, also referred to as touch display screen or Trackpad are collected and are used
Family on it or nearby touch operation (such as user using any suitable object or attachment such as finger, stylus in touch-sensitive table
Operation on face 331 or near touch sensitive surface 331), and corresponding attachment device is driven according to preset formula.It is optional
, touch sensitive surface 331 may include both touch detecting apparatus and touch controller.Wherein, touch detecting apparatus detection is used
The touch orientation at family, and touch operation bring signal is detected, transmit a signal to touch controller；Touch controller is from touch
Touch information is received in detection device, and is converted into contact coordinate, then gives processor 380, and can receive processor 380
The order sent simultaneously is executed.Furthermore, it is possible to using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves
Realize touch sensitive surface 331.In addition to touch sensitive surface 331, input unit 330 can also include other input equipments 332.Specifically,
Other input equipments 332 can include but is not limited to physical keyboard, function key (such as volume control button, switch key etc.),
One of trace ball, mouse, operating stick etc. are a variety of.
Display unit 340 can be used for showing information input by user or the information and mobile terminal that are supplied to user
300 various graphical user interface, these graphical user interface can by figure, text, icon, video and any combination thereof Lai
It constitutes.Display unit 340 may include display panel 341, optionally, can using LCD (Liquid Crystal Display,
Liquid crystal display), the forms such as OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) configure display
Panel 341.Further, touch sensitive surface 331 can cover display panel 341, when touch sensitive surface 331 detect on it or near
Touch operation after, send processor 380 to determine the type of touch event, be followed by subsequent processing device 380 according to touch event
Type provides corresponding visual output on display panel 341.Although in Fig. 7, touch sensitive surface 331 is with display panel 341
Output and input function as two independent components to realize, but in some embodiments it is possible to by touch sensitive surface 331 with
Display panel 341 is integrated and realizes and outputs and inputs function.
Mobile terminal 300 may also include at least one sensor 350, for example, optical sensor, motion sensor and other
Sensor.Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can basis
The light and shade of ambient light adjusts the brightness of display panel 341, proximity sensor can when mobile terminal 300 is moved in one's ear,
Close display panel 341 and/or backlight.As a kind of motion sensor, gravity accelerometer can detect all directions
The size of upper (generally three axis) acceleration, can detect that size and the direction of gravity, can be used to identify mobile phone posture when static
Application (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (for example pedometer, strikes
Hit) etc.；Gyroscope, barometer, hygrometer, thermometer, infrared sensor for can also configure as mobile terminal 300 etc. other
Sensor, details are not described herein.
Voicefrequency circuit 360, loudspeaker 361, microphone 362 can provide the audio interface between user and mobile terminal 300.
Electric signal after the audio data received conversion can be transferred to loudspeaker 361, be converted by loudspeaker 361 by voicefrequency circuit 360
For voice signal output；On the other hand, the voice signal of collection is converted to electric signal by microphone 362, is connect by voicefrequency circuit 360
Audio data is converted to after receipts, then by after the processing of audio data output processor 380, is sent to through RF circuit 310 such as another
One terminal, or audio data is exported to memory 320 to be further processed.Voicefrequency circuit 360 is also possible that earplug
Jack, to provide the communication of peripheral hardware earphone Yu mobile terminal 300.
Mobile terminal 300 can help user send and receive e-mail, is clear by transmission module 370 (such as Wi-Fi module)
Look at webpage and access streaming video etc., it provides wireless broadband internet for user and accesses.Although Fig. 7 shows transmission mould
Block 370, but it is understood that, and it is not belonging to must be configured into for mobile terminal 300, it can according to need do not changing completely
Become in the range of the essence of invention and omits.
Processor 380 is the control centre of mobile terminal 300, utilizes each of various interfaces and connection whole mobile phone
Part by running or execute the software program and/or module that are stored in memory 320, and calls and is stored in memory
Data in 320 execute the various functions and processing data of mobile terminal 300, to carry out integral monitoring to mobile phone.It is optional
, processor 380 may include one or more processing cores；In some embodiments, processor 380 can integrate application processor
And modem processor, wherein the main processing operation system of application processor, user interface and application program etc., modulatedemodulate
Processor is adjusted mainly to handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor
In 380.
Mobile terminal 300 further includes the power supply 390 (such as battery) powered to all parts, in some embodiments, electricity
Source can be logically contiguous by power-supply management system and processor 380, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.Power supply 190 can also include one or more direct current or AC power source, recharge
The random components such as system, power failure detection circuit, power adapter or inverter, power supply status indicator.
Although being not shown, mobile terminal 300 can also include camera (such as front camera, rear camera), bluetooth
Module etc., details are not described herein.Specifically in the present embodiment, the display unit of mobile terminal is touch-screen display, mobile whole
End further includes having memory and one perhaps more than one program one of them or more than one program being stored in and deposits
In reservoir, and it is configured to execute one or more than one program by one or more than one processor to include for carrying out
The instruction operated below:
Determine the input current at the signal input part；
Judge whether the input current is more than predetermined current threshold；
If so, detecting the duration that the input current is more than the predetermined current threshold；
When the duration is greater than preset duration, being electrically connected between the power supply and signal input part is disconnected, to stop
Driving voltage is provided to the display screen.
When it is implemented, the above modules can be used as independent entity to realize, any combination can also be carried out, is made
It is realized for same or several entities, the specific implementation of the above modules can be found in the embodiment of the method for front, herein not
It repeats again.
It will appreciated by the skilled person that all or part of the steps in the various methods of above-described embodiment can be with
It is completed by instructing, or relevant hardware is controlled by instruction to complete, which can store computer-readable deposits in one
In storage media, and is loaded and executed by processor.For this purpose, the embodiment of the present invention provides a kind of storage medium, wherein storing
There is a plurality of instruction, which can be loaded by processor, to execute any display screen provided by the embodiment of the present invention
Method for controlling power supply in step.
Wherein, which may include: read-only memory (ROM, Read Only Memory), random access memory
Body (RAM, Random Access Memory), disk or CD etc..
By the instruction stored in the storage medium, any display screen provided by the embodiment of the present invention can be executed
Method for controlling power supply in step, it is thereby achieved that any display screen provided by the embodiment of the present invention for automatically controlled
Beneficial effect achieved by method processed is detailed in the embodiment of front, and details are not described herein.
The specific implementation of above each operation can be found in the embodiment of front, and details are not described herein.
It is to sum up somebody's turn to do, although the application is disclosed above with preferred embodiment, above preferred embodiment is not to limit
The application, those skilled in the art are not departing from spirit and scope, can make various changes and profit
Decorations, therefore the protection scope of the application subjects to the scope of the claims.
Claims (10)
1. a kind of method for controlling power supply of display screen is applied to mobile terminal, which is characterized in that the mobile terminal includes display
Screen and power supply, the display screen have signal input part, and the power supply is electrically connected with the signal input part, with to the display
Screen provides driving voltage；The method for controlling power supply includes:
Determine the input current at the signal input part；
Judge whether the input current is more than predetermined current threshold；
If so, detecting the duration that the input current is more than the predetermined current threshold；
When the duration is greater than preset duration, being electrically connected between the power supply and signal input part is disconnected, to stop
Driving voltage is provided to the display screen.
2. the method for controlling power supply of display screen according to claim 1, which is characterized in that the mobile terminal further includes electricity
Current detection circuit, the current detection circuit are electrically connected with the signal input part, for detecting at the signal input part
Input current；
The current detection circuit includes the first circuit branch being connected in parallel and second circuit branch, first circuit branch
Including the first fixed value resistance and the second fixed value resistance being connected in series with each other；The second circuit branch includes being connected in series with each other
Third fixed value resistance and mistor, second fixed value resistance and mistor ground connection, the mistor be used for basis
Self-resistance value is adjusted in size of current.
3. the method for controlling power supply of display screen according to claim 2, which is characterized in that the determination signal input
Input current at end, comprising:
The target resistance of the mistor is determined according to first fixed value resistance, the second fixed value resistance and third fixed value resistance
Value；
Obtain pre-set current value corresponding with the target resistance values；
The input current at the signal input part is determined according to the pre-set current value of acquisition.
4. the method for controlling power supply of display screen according to claim 3, which is characterized in that according to the first definite value electricity
Resistance, the second fixed value resistance and third fixed value resistance determine the target resistance values of the mistor, comprising:
Obtain the first resistance value of first fixed value resistance, the second resistance value of second fixed value resistance and the third definite value
The third resistance value of resistance；
The detection first voltage being applied on second fixed value resistance and the second electricity being applied on the mistor
Pressure；
According to mistor described in the first voltage, second voltage, the first resistance value, the second resistance value and third computing the resistor value
Target resistance values.
5. the method for controlling power supply of display screen according to claim 3, which is characterized in that described according to the described pre- of acquisition
If current value determines the input current at the signal input part, comprising:
The first electric current in first circuit branch is determined according to second fixed value resistance；
The sum of first electric current and pre-set current value are calculated, the input current at the signal input part is obtained.
6. a kind of power supply control apparatus of display screen is applied to mobile terminal, which is characterized in that the mobile terminal includes display
Screen and power supply, the display screen have signal input part, and the power supply is electrically connected with the signal input part, with to the display
Screen provides driving voltage；The power supply control apparatus includes:
Determining module, for determining the input current at the signal input part；
Judgment module, for judging whether the input current is more than predetermined current threshold；
Detection module, for if so, detecting the duration that the input current is more than the predetermined current threshold；
Module is disconnected, for disconnecting between the power supply and signal input part when the duration is greater than preset duration
Electrical connection, to stop providing driving voltage to the display screen.
7. the power supply control apparatus of display screen according to claim 6, which is characterized in that the mobile terminal further includes electricity
Current detection circuit, the current detection circuit are electrically connected with the signal input part, for detecting at the signal input part
Input current；
The current detection circuit includes the first circuit branch being connected in parallel and second circuit branch, first circuit branch
Including the first fixed value resistance and the second fixed value resistance being connected in series with each other；The second circuit branch includes being connected in series with each other
Third fixed value resistance and mistor, second fixed value resistance and mistor ground connection, the mistor be used for basis
Self-resistance value is adjusted in size of current.
8. the power supply control apparatus of display screen according to claim 7, which is characterized in that the determining module is specifically wrapped
It includes:
First determination unit, for according to the determination of first fixed value resistance, the second fixed value resistance and third fixed value resistance
The target resistance values of mistor；
Acquiring unit, for obtaining pre-set current value corresponding with the target resistance values；
Second determination unit determines the input current at the signal input part for the pre-set current value according to acquisition.
9. the power supply control apparatus of display screen according to claim 8, which is characterized in that first determination unit is specific
For:
Obtain the first resistance value of first fixed value resistance, the second resistance value of second fixed value resistance and the third definite value
The third resistance value of resistance；
The detection first voltage being applied on second fixed value resistance and the second electricity being applied on the mistor
Pressure；
According to mistor described in the first voltage, second voltage, the first resistance value, the second resistance value and third computing the resistor value
Target resistance values.
10. a kind of computer readable storage medium, which is characterized in that be stored with a plurality of instruction, the finger in the storage medium
It enables and is suitable for loading the method for controlling power supply for requiring 1 to 5 described in any item display screens with perform claim by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811537269.8A CN109617009A (en) | 2018-12-15 | 2018-12-15 | Method for controlling power supply, device and the storage medium of display screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811537269.8A CN109617009A (en) | 2018-12-15 | 2018-12-15 | Method for controlling power supply, device and the storage medium of display screen |
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| CN201811537269.8A Pending CN109617009A (en) | 2018-12-15 | 2018-12-15 | Method for controlling power supply, device and the storage medium of display screen |
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Application publication date: 20190412 |