CN110599947A - Display screen on-off control circuit, display screen and control method - Google Patents
Display screen on-off control circuit, display screen and control method Download PDFInfo
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- CN110599947A CN110599947A CN201910752481.4A CN201910752481A CN110599947A CN 110599947 A CN110599947 A CN 110599947A CN 201910752481 A CN201910752481 A CN 201910752481A CN 110599947 A CN110599947 A CN 110599947A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
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Abstract
The invention relates to a display screen startup and shutdown control circuit, a display screen and a control method, wherein the control circuit comprises: the interrupt detection module is used for detecting interrupt information of the display screen and outputting an interrupt signal according to the interrupt information; and the switch control module is used for controlling the on or off of a power supply circuit of the display screen according to the interrupt signal. According to the technical scheme, the interruption information of the display screen is detected, the interruption signal is output according to the interruption information, and the power circuit of the display screen is controlled to be turned on or turned off according to the interruption signal, so that the self-turning-on or self-turning-off of the power circuit according to the service condition of the display screen is realized, the intelligent level of power management of the display screen is further improved, the energy consumption of the display screen is reduced, and the user experience degree and the satisfaction degree are high.
Description
Technical Field
The invention relates to the technical field of intelligent control, in particular to a display screen on-off control circuit, a display screen and a control method.
Background
The current display screen (including LED display screen, household touch screen, commercial touch screen, and industrial touch screen) enters a sleep state (or screen saver state) when it is not operated for a long time, but the display screen only turns off the power of the display part and does not turn off the power circuit of the display screen, for example, the main chip CPU, RAM (random access memory), PMU (power management unit) still works. These devices are one of the main sources of power consumption of the display screen, and thus the power consumption of the display screen is still high.
Disclosure of Invention
In order to overcome the problems in the related art at least to a certain extent, the invention provides a display screen on-off control circuit, a display screen and a control method, so as to solve the problem of high power consumption caused by the fact that a power supply circuit of the display screen is still working when the display screen is in a dormant state in the prior art.
According to a first aspect of the embodiments of the present invention, there is provided a display screen power on/off control circuit, including:
the interrupt detection module is used for detecting interrupt information of the display screen and outputting an interrupt signal according to the interrupt information;
and the switch control module is used for controlling the on or off of a power supply circuit of the display screen according to the interrupt signal.
Preferably, the switch control module is externally connected with a power supply;
the switch control module is specifically used for controlling whether the power supply supplies power to the power circuit of the display screen or not through the on-off of the switch control module according to the interrupt signal.
Preferably, the switch control module includes:
a first switching module and a second switching module in cascade, wherein,
the first switch module is externally connected with a power supply and is connected with the interruption detection module;
the second switch module is externally connected with a power supply and is connected with a power supply circuit of the display screen.
Preferably, the first switch module includes: at least one triode; and/or the presence of a gas in the gas,
the second switch module includes: at least one MOS tube.
Preferably, if the first switch circuit comprises a transistor and the second switch circuit comprises a MOS transistor, then,
the collector of the triode is connected with the grid of the MOS tube;
the base electrode of the triode is connected with the interruption detection module, and the source electrode of the MOS tube is connected with the power circuit of the display screen.
Preferably, the switch control module further includes: a voltage division and current limiting module;
the triode and the MOS tube are externally connected with a power supply through the voltage division and current limiting module.
Preferably, the base electrode of the triode is externally connected with a power supply through the voltage division and current limitation module;
and the drain electrode of the MOS tube is externally connected with a power supply through the voltage division current limiting module.
Preferably, the voltage dividing and current limiting module includes:
the first voltage-dividing current-limiting resistor, the second voltage-dividing current-limiting resistor and the third voltage-dividing current-limiting resistor;
the first voltage-dividing current-limiting resistor and the second voltage-dividing current-limiting resistor are connected in series, one end of a circuit after series connection is connected between the power supply and the drain electrode of the MOS tube, and the other end of the circuit is grounded;
one end of the third voltage-dividing current-limiting resistor is connected between the first voltage-dividing current-limiting resistor and the second voltage-dividing current-limiting resistor, and the other end of the third voltage-dividing current-limiting resistor is connected with the base electrode of the triode.
Preferably, the switch control module further includes: an output resistor;
one end of the output resistor is connected with the source electrode of the MOS tube, and the other end of the output resistor is grounded.
According to a second aspect of embodiments of the present invention, there is provided a display screen including:
the display screen on-off control circuit is included.
According to a third aspect of the embodiments of the present invention, there is provided a display screen power on/off control method, including:
detecting interruption information of a display screen;
outputting an interrupt signal according to the interrupt information;
and controlling the power supply circuit of the display screen to be switched on or switched off according to the interrupt signal.
Preferably, the interruption information includes: an interrupt duration, and/or an interrupt instruction.
Preferably, the outputting an interrupt signal according to the interrupt information includes:
if the interruption time length exceeds the preset time length, outputting a first interruption signal; and/or the presence of a gas in the gas,
and if the interruption time length does not exceed the preset time length, or the interruption instruction is detected, outputting a second interruption signal.
Preferably, the controlling the on or off of the power circuit of the display screen includes:
if the interrupt signal is a first interrupt signal, controlling a power circuit of the display screen to be closed;
and if the interrupt signal is a second interrupt signal, controlling a power circuit of the display screen to be started.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
the intelligent power management system has the advantages that the interruption information of the display screen is detected, the interruption signal is output according to the interruption information, and the power circuit of the display screen is controlled to be turned on or turned off according to the interruption signal, so that the power circuit is turned on or turned off automatically according to the service condition of the display screen, the intelligent level of power management of the display screen is further improved, the energy consumption of the display screen is reduced, and the user experience degree is good and the satisfaction degree is high.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic block diagram of a display screen power on and off control circuit shown in accordance with an exemplary embodiment;
FIG. 2 is a schematic diagram of a display screen power on and off control circuit according to another exemplary embodiment;
fig. 3 is a flowchart illustrating a display screen power on/off control method according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a schematic block diagram illustrating a display screen power on/off control circuit according to an exemplary embodiment, which includes, as shown in fig. 1:
the interrupt detection module 1 is used for detecting interrupt information of the display screen 4 and outputting an interrupt signal according to the interrupt information;
and the switch control module 2 is used for controlling the power supply circuit 3 of the display screen to be switched on or switched off according to the interrupt signal.
It should be noted that the display screen includes, but is not limited to: LED display screen, domestic touch screen, commercial touch screen, industry touch screen. The power circuit of the display screen includes but is not limited to: a driving circuit, a control circuit, a power supply circuit and the like of the display screen. The power circuit of the display screen includes but is not limited to: a main chip CPU, a RAM (random access memory), a PMU (power management unit), and the like.
Preferably, the interruption information includes: an interrupt duration, and/or an interrupt instruction.
It can be understood that the interruption time duration is the time duration that the display screen does not receive the operation instruction. The operation instruction can be sent by a user through a touch display screen or sent by the user through operating a mouse.
The interrupt instruction is a starting instruction, after the power circuit of the display screen is closed, because the interrupt detection module is always opened (the power of the interrupt detection module is very low and is far lower than the working power of a CPU, an RAM and an MPU in the power circuit of the display screen, the influence on the whole power of the power circuit of the display screen is very small), a user can operate the interrupt detection module, and after the interrupt detection module detects the interrupt instruction, an interrupt signal is generated, so that the switch control module is controlled to execute corresponding actions.
Preferably, the outputting an interrupt signal according to the interrupt information includes:
if the interruption time length exceeds the preset time length, outputting a first interruption signal; and/or the presence of a gas in the gas,
and if the interruption time length does not exceed the preset time length, or the interruption instruction is detected, outputting a second interruption signal.
It should be noted that the preset time length is set according to user needs or historical experience values. For example, the user may set the preset time period to 0.5 hour, 1 hour, etc., as needed.
Preferably, the first interrupt signal is at a low level (e.g., 0), and the second interrupt signal is at a high level (e.g., 1). The advantage of this arrangement is that control is simple and easy to operate.
Preferably, the controlling the on or off of the power circuit of the display screen includes:
if the interrupt signal is a first interrupt signal, controlling a power circuit of the display screen to be closed;
and if the interrupt signal is a second interrupt signal, controlling a power circuit of the display screen to be started.
It can be understood that, according to the technical scheme provided by this embodiment, the interruption information of the display screen is detected, the interruption signal is output according to the interruption information, and according to the interruption signal, the power circuit of the display screen is controlled to be turned on or turned off, so that the power circuit is turned on or turned off automatically according to the service condition of the display screen, the intelligent level of power management of the display screen is further improved, the energy consumption of the display screen is reduced, and the user experience degree is good and the satisfaction degree is high.
Preferably, the switch control module is externally connected with a power supply;
the switch control module is specifically used for controlling whether the power supply supplies power to the power circuit of the display screen or not through the on-off of the switch control module according to the interrupt signal.
Preferably, the switch control module includes:
a first switching module and a second switching module in cascade, wherein,
the first switch module is externally connected with a power supply and is connected with the interruption detection module;
the second switch module is externally connected with a power supply and is connected with a power supply circuit of the display screen.
Preferably, the first switch module includes: at least one triode; and/or the presence of a gas in the gas,
the second switch module includes: at least one MOS tube.
Preferably, if the first switch circuit comprises a transistor and the second switch circuit comprises a MOS transistor, then,
the collector of the triode is connected with the grid of the MOS tube;
the base electrode of the triode is connected with the interruption detection module, and the source electrode of the MOS tube is connected with the power circuit of the display screen.
Preferably, the switch control module further includes: a voltage division and current limiting module;
the triode and the MOS tube are externally connected with a power supply through the voltage division and current limiting module.
Preferably, the base electrode of the triode is externally connected with a power supply through the voltage division and current limitation module;
and the drain electrode of the MOS tube is externally connected with a power supply through the voltage division current limiting module.
Preferably, the voltage dividing and current limiting module includes:
the first voltage-dividing current-limiting resistor, the second voltage-dividing current-limiting resistor and the third voltage-dividing current-limiting resistor;
the first voltage-dividing current-limiting resistor and the second voltage-dividing current-limiting resistor are connected in series, one end of a circuit after series connection is connected between the power supply and the drain electrode of the MOS tube, and the other end of the circuit is grounded;
one end of the third voltage-dividing current-limiting resistor is connected between the first voltage-dividing current-limiting resistor and the second voltage-dividing current-limiting resistor, and the other end of the third voltage-dividing current-limiting resistor is connected with the base electrode of the triode.
It can be understood that the voltage division and current limitation module mainly functions to divide the voltage of the power supply in a shunting manner so as to ensure that the MOS transistor and the triode can work normally.
Preferably, the switch control module further includes: an output resistor;
one end of the output resistor is connected with the source electrode of the MOS tube, and the other end of the output resistor is grounded.
It can be understood that the switch control module provided by the embodiment has the advantages of simple structure, easiness in deployment and implementation, low cost, good user experience degree and high satisfaction degree.
Fig. 2 is a schematic block diagram illustrating a display screen power on/off control circuit according to an exemplary embodiment, which includes, as shown in fig. 2:
the interrupt detection module is used for detecting interrupt information of the display screen and outputting an interrupt signal according to the interrupt information;
a switch control module comprising:
a transistor Q2, a MOS transistor Q1, wherein the collector of the transistor Q2 is connected with the gate of the MOS transistor Q1; the base electrode of the triode Q2 is connected with the interruption detection module, and the source electrode of the MOS tube Q1 is connected with the power circuit of the display screen.
The voltage divider circuit comprises a first voltage-dividing current-limiting resistor R1, a second voltage-dividing current-limiting resistor R2 and a third voltage-dividing current-limiting resistor R3;
the first voltage-dividing current-limiting resistor R1 and the second voltage-dividing current-limiting resistor R2 are connected in series, one end of a circuit after series connection is connected between the power supply and the drain electrode of the MOS transistor Q1, and the other end of the circuit is grounded;
one end of the third voltage-dividing current-limiting resistor R3 is connected between the first voltage-dividing current-limiting resistor R1 and the second voltage-dividing current-limiting resistor R2, and the other end is connected with the base electrode of the triode Q2.
And one end of the output resistor R3 is connected with the source electrode of the MOS transistor Q1, and the other end of the output resistor R3 is grounded.
Preferably, the MOS transistor Q1 is an NMOS transistor Q1.
For the sake of understanding, the operation principle of the display screen power on/off control circuit shown in fig. 2 is explained as follows:
when the interrupt detection module does not detect the interrupt information after exceeding the preset time length, the output interrupt signal is 0, the base current of the triode Q2 is 0, and the Q2 works in a cut-off region, so that the V of Q1 is causedgs＜VtnQ1 operating in the cut-off region, VInputThe output is 0, at this time, the power supply circuit of the display screen is in a shutdown state, and the CPU, the RAM, the MPU and the like all stop working;
when the interrupt detection module detects an interrupt command, the output interrupt signal is 1, the base current of the triode Q2 is more than 0, and the Q2 works in an amplification region, so that the V of Q1 is causedgs＞VtnQ1 is on, through output resistor R3, VInputAnd providing working voltage required by the work of the display screen, and starting the display screen.
It can be understood that, according to the technical scheme provided by this embodiment, the interruption information of the display screen is detected, the interruption signal is output according to the interruption information, and according to the interruption signal, the power circuit of the display screen is controlled to be turned on or turned off, so that the power circuit is turned on or turned off automatically according to the service condition of the display screen, the intelligent level of power management of the display screen is further improved, the energy consumption of the display screen is reduced, and the user experience degree is good and the satisfaction degree is high.
A display screen is shown according to an exemplary embodiment, comprising:
the display screen on-off control circuit is included.
It can be understood that, according to the technical scheme provided by this embodiment, the interruption information of the display screen is detected, the interruption signal is output according to the interruption information, and according to the interruption signal, the power circuit of the display screen is controlled to be turned on or turned off, so that the power circuit is turned on or turned off automatically according to the service condition of the display screen, the intelligent level of power management of the display screen is further improved, the energy consumption of the display screen is reduced, and the user experience degree is good and the satisfaction degree is high.
Fig. 3 is a flowchart illustrating a display screen power on/off control method according to an exemplary embodiment, as shown in fig. 3, the method including:
step S11, detecting the interruption information of the display screen;
step S12, outputting an interrupt signal according to the interrupt information;
and step S13, controlling the power supply circuit of the display screen to be turned on or off according to the interrupt signal.
It should be noted that the display screen includes, but is not limited to: LED display screen, domestic touch screen, commercial touch screen, industry touch screen. The power circuit of the display screen includes but is not limited to: a driving circuit, a control circuit, a power supply circuit and the like of the display screen. The power circuit of the display screen includes but is not limited to: a main chip CPU, a RAM (random access memory), a PMU (power management unit), and the like.
Preferably, the interruption information includes: an interrupt duration, and/or an interrupt instruction.
It can be understood that the interruption time duration is the time duration that the display screen does not receive the operation instruction. The operation instruction can be sent by a user through a touch display screen or sent by the user through operating a mouse.
The interrupt instruction is a starting instruction, after a power circuit of the display screen is turned off, because the interrupt detection module is always turned on, a user can operate the interrupt detection module, and after the interrupt detection module detects the interrupt instruction, an interrupt signal is generated to further control the switch control module to execute corresponding actions.
Preferably, the outputting an interrupt signal according to the interrupt information includes:
if the interruption time length exceeds the preset time length, outputting a first interruption signal; and/or the presence of a gas in the gas,
and if the interruption time length does not exceed the preset time length, or the interruption instruction is detected, outputting a second interruption signal.
It should be noted that the preset time length is set according to user needs or historical experience values. For example, the user may set the preset time period to 0.5 hour, 1 hour, etc., as needed.
Preferably, the first interrupt signal is at a low level (e.g., 0), and the second interrupt signal is at a high level (e.g., 1). The advantage of this arrangement is that control is simple and easy to operate.
Preferably, the controlling the on or off of the power circuit of the display screen includes:
if the interrupt signal is a first interrupt signal, controlling a power circuit of the display screen to be closed;
and if the interrupt signal is a second interrupt signal, controlling a power circuit of the display screen to be started.
It can be understood that, according to the technical scheme provided by this embodiment, the interruption information of the display screen is detected, the interruption signal is output according to the interruption information, and according to the interruption signal, the power circuit of the display screen is controlled to be turned on or turned off, so that the power circuit is turned on or turned off automatically according to the service condition of the display screen, the intelligent level of power management of the display screen is further improved, the energy consumption of the display screen is reduced, and the user experience degree is good and the satisfaction degree is high.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (14)
1. A display screen on-off control circuit is characterized by comprising:
the interrupt detection module is used for detecting interrupt information of the display screen and outputting an interrupt signal according to the interrupt information;
and the switch control module is used for controlling the on or off of a power supply circuit of the display screen according to the interrupt signal.
2. The circuit of claim 1,
the switch control module is externally connected with a power supply;
the switch control module is specifically used for controlling whether the power supply supplies power to the power circuit of the display screen or not through the on-off of the switch control module according to the interrupt signal.
3. The circuit of claim 2, wherein the switch control module comprises:
a first switching module and a second switching module in cascade, wherein,
the first switch module is externally connected with a power supply and is connected with the interruption detection module;
the second switch module is externally connected with a power supply and is connected with a power supply circuit of the display screen.
4. The circuit of claim 3,
the first switch module includes: at least one triode; and/or the presence of a gas in the gas,
the second switch module includes: at least one MOS tube.
5. The circuit of claim 4, wherein if the first switching circuit comprises a transistor and the second switching circuit comprises a MOS transistor,
the collector of the triode is connected with the grid of the MOS tube;
the base electrode of the triode is connected with the interruption detection module, and the source electrode of the MOS tube is connected with the power circuit of the display screen.
6. The circuit of claim 5,
the switch control module further comprises: a voltage division and current limiting module;
the triode and the MOS tube are externally connected with a power supply through the voltage division and current limiting module.
7. The circuit of claim 6,
the base electrode of the triode is externally connected with a power supply through the voltage division and current limiting module;
and the drain electrode of the MOS tube is externally connected with a power supply through the voltage division current limiting module.
8. The circuit of claim 7, wherein the voltage dividing and current limiting module comprises:
the first voltage-dividing current-limiting resistor, the second voltage-dividing current-limiting resistor and the third voltage-dividing current-limiting resistor;
the first voltage-dividing current-limiting resistor and the second voltage-dividing current-limiting resistor are connected in series, one end of a circuit after series connection is connected between the power supply and the drain electrode of the MOS tube, and the other end of the circuit is grounded;
one end of the third voltage-dividing current-limiting resistor is connected between the first voltage-dividing current-limiting resistor and the second voltage-dividing current-limiting resistor, and the other end of the third voltage-dividing current-limiting resistor is connected with the base electrode of the triode.
9. The circuit of claim 5,
the switch control module further comprises: an output resistor;
one end of the output resistor is connected with the source electrode of the MOS tube, and the other end of the output resistor is grounded.
10. A display screen is characterized in that the display screen comprises a display screen body,
the display screen on-off control circuit comprises the display screen on-off control circuit as claimed in any one of claims 1-9.
11. A method for controlling the startup and shutdown of a display screen is characterized by comprising the following steps:
detecting interruption information of a display screen;
outputting an interrupt signal according to the interrupt information;
and controlling the power supply circuit of the display screen to be switched on or switched off according to the interrupt signal.
12. The method of claim 11,
the interrupt information includes: an interrupt duration, and/or an interrupt instruction.
13. The method of claim 12, wherein outputting an interrupt signal according to the interrupt information comprises:
if the interruption time length exceeds the preset time length, outputting a first interruption signal; and/or the presence of a gas in the gas,
and if the interruption time length does not exceed the preset time length, or the interruption instruction is detected, outputting a second interruption signal.
14. The method of claim 13, wherein the controlling the power on or off of the power circuit of the display screen comprises:
if the interrupt signal is a first interrupt signal, controlling a power circuit of the display screen to be closed;
and if the interrupt signal is a second interrupt signal, controlling a power circuit of the display screen to be started.
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| Publication number | Priority date | Publication date | Assignee | Title |
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