CN103634642A - Method and device for reducing power consumption - Google Patents
Method and device for reducing power consumption Download PDFInfo
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- CN103634642A CN103634642A CN201310638951.7A CN201310638951A CN103634642A CN 103634642 A CN103634642 A CN 103634642A CN 201310638951 A CN201310638951 A CN 201310638951A CN 103634642 A CN103634642 A CN 103634642A
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Abstract
An embodiment of the invention provides a method and a device for reducing power consumption, and relates to the technical field of electronics. The method includes acquiring first states; reducing the brightness of a backlight source from first brightness to second brightness according to preset rules within durations of the first states. The first states are used for representing execution operation corresponding to first operation instructions transmitted from control equipment or representing the condition that data signals are not received from current signal sources. The method and the device have the advantages that power consumption of the backlight source can be reduced, and accordingly power consumption of the electronic equipment can be reduced.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of method and device that reduces power consumption.
Background technology
Along with TFT-LCD(Thin Film Transistor-Liquid Crystal Display, Thin Film Transistor (TFT) liquid crystal display) universal, manufacturer more and more focuses on the power problems of the electronic equipment of this liquid crystal display.
In prior art, when user is when use has the electronic equipment of liquid crystal display, the backlight of the liquid crystal display of this electronic equipment needs the state in opening always, just can complete normal procedure for displaying.
Yet, because backlight needs a direct-open, therefore cause the power consumption of backlight larger, thereby make the power consumption of electronic equipment also larger.
Summary of the invention
Embodiments of the invention provide a kind of method and device that reduces power consumption, can reduce the power consumption of backlight, thereby reduce the power consumption of electronic equipment.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, embodiments of the invention provide a kind of method that reduces power consumption, comprising:
Obtain the first state, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or from current demand signal source, does not receive data-signal;
Within the time of described the first state continuance, according to preset rules, the brightness of backlight is dropped to the second brightness from the first brightness.
In the possible implementation of the first of first aspect, described the first operational order comprises: tuning instruction, zapping instruction or switching signal sourse instruction,
Wherein, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, and specifically comprises:
If described the first operational order is described tuning instruction, described the first state is for characterizing the operation of carrying out television channel searching, and described the first state is specially the state while searching for described television channel; Or,
If described the first operational order is described zapping instruction, described the first state carries out for characterizing the operation that is switched to the first television channel from TV channel, and described the first state is specially the state while being switched to described the first television channel from described TV channel; Or,
If described the first operational order is described switching signal sourse instruction, described the first state is switched to the operation in first signal source for characterizing to carry out from described current demand signal source, and described the first state is specially the state while being switched to described first signal source from described current demand signal source.
In conjunction with the possible implementation of the first of aforesaid first aspect or first aspect, in the possible implementation of the second, described preset rules comprises that the duty ratio of adjusting control signal drops to the first numerical value from current value, and described control signal is for controlling the signal of the brightness of described backlight
Wherein, the described method of the second brightness that the brightness of backlight dropped to from the first brightness according to preset rules, specifically comprises:
The duty ratio of adjusting described control signal drops to described the first numerical value from described current value, so that the brightness of described backlight is dropped to described the second brightness from described the first brightness.
In conjunction with the possible implementation of the second of first aspect, in the third possible implementation, described method also comprises:
When the duty ratio of described control signal is described current value, by described control signal by the brilliance control of described backlight in described the first brightness, and,
When the duty ratio of described control signal is described the first numerical value, by described control signal by the brilliance control of described backlight in described the second brightness.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation,
The ratio of described the first numerical value and described current value is more than or equal to 50%, and is less than or equal to 80%.
Second aspect, embodiments of the invention provide a kind of device that reduces power consumption, comprising:
Acquiring unit, for obtaining the first state, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or from current demand signal source, does not receive data-signal;
Adjustment unit, in the time for described the first state continuance of obtaining at acquiring unit, drops to second brightness by the brightness of backlight from the first brightness according to preset rules.
In the possible implementation of the first of second aspect, described the first operational order comprises: tuning instruction, zapping instruction or switching signal sourse instruction,
Wherein, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, and specifically comprises:
If described the first operational order is described tuning instruction, described the first state is for characterizing the operation of carrying out television channel searching, and described the first state is specially the state while searching for described television channel; Or,
If described the first operational order is described zapping instruction, described the first state carries out for characterizing the operation that is switched to the first television channel from TV channel, and described the first state is specially the state while being switched to described the first television channel from described TV channel; Or,
If described the first operational order is described switching signal sourse instruction, described the first state is switched to the operation in first signal source for characterizing to carry out from described current demand signal source, and described the first state is specially the state while being switched to described first signal source from described current demand signal source.
In conjunction with the possible implementation of the first of aforesaid second aspect or second aspect, in the possible implementation of the second, described preset rules comprises that the duty ratio of adjusting control signal drops to the first numerical value from current value, described control signal is for controlling the signal of the brightness of described backlight, wherein
Described adjustment unit, drops to described the first numerical value specifically for adjusting the duty ratio of described control signal from described current value, so that the brightness of described backlight is dropped to described the second brightness from described the first brightness.
In conjunction with the possible implementation of the second of second aspect, in the third possible implementation,
Described adjustment unit, while being also described current value for the duty ratio when described control signal, by described control signal by the brilliance control of described backlight in described the first brightness, and, when the duty ratio of described control signal is described the first numerical value, by described control signal by the brilliance control of described backlight in described the second brightness.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation,
The ratio of described the first numerical value and described current value is more than or equal to 50%, and is less than or equal to 80%.
Embodiments of the invention provide a kind of method and device that reduces power consumption, by obtaining the first state, this first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or from current demand signal source, do not receive data-signal, and within the time of this first state continuance, according to preset rules, the brightness of backlight is dropped to the second brightness from the first brightness.By this scheme, within the duration at above-mentioned the first state, electronic equipment can reduce the brightness of its backlight, therefore, can reduce the power consumption of backlight, thereby reduces the power consumption of liquid crystal display.
Accompanying drawing explanation
A kind of flow chart that reduces the method for power consumption that Fig. 1 provides for the embodiment of the present invention;
The oscillogram of the different duty of the control signal that Fig. 2 provides for the embodiment of the present invention;
A kind of structural representation that reduces the device 1 of power consumption that Fig. 3 provides for the embodiment of the present invention;
The structural representation of a kind of electronic equipment that Fig. 4 provides for the embodiment of the present invention.
Embodiment
A kind of method and the device that the reduces power consumption embodiment of the present invention being provided below in conjunction with accompanying drawing is described in detail.
Embodiment mono-
Embodiments of the invention provide a kind of method that reduces power consumption, and as shown in Figure 1, the method can comprise:
S101, electronic equipment obtain the first state, and this first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or from current demand signal source, does not receive data-signal.
In the embodiment of the present invention, electronic equipment can be for there being the equipment of liquid crystal display.
Signal source refers to instrument or the equipment of outputting data signals.If electronic equipment outer signal source, the data-signal of being exported by this signal source can input in electronic equipment and show, thereby makes user can watch the data-signal of being exported by this signal source.Electronic equipment can receive the data-signal of signal source output by signal source port, wherein, port refers to electronic equipment and extraneous interface of communicating by letter; Signal source port refers to the interface being connected with outer signal source in electronic equipment.In the embodiment of the present invention, in electronic equipment, can be provided with a plurality of signal source ports, thereby user can watch the data-signal of the signal source output connecting from different signal source ports.
User is when using electronic equipment, if electronic equipment receives the first operational order that user sends by control appliance, electronic equipment is carried out the operation corresponding with this first operational order, so, electronic equipment obtains the state of carrying out the operation corresponding with this first operational order for characterizing this electronic equipment, i.e. the first state; Or user is when using electronic equipment, electronic equipment obtains for characterizing this electronic equipment and from its external signal source equipment, does not receive the state of data-signal, i.e. the first state.
Optionally, control appliance can, for controlling the remote controller of electronic equipment, can be also control button integrated in electronic equipment.
Further, when electronic equipment is in operation corresponding to the first operational order of carrying out control appliance transmission, or electronic equipment is not while receiving data-signal from current demand signal source, electronic equipment generates triggering signal, so that the main control chip of this electronic equipment mainboard can, according to this triggering signal, be set to " 1 " by the value of status register.When the value of this status register is " 1 ", the state that electronic equipment gets is the first state.Wherein, this triggering signal carries out for triggering the main control chip of electronic equipment mainboard the program that the value of status register is set to " 1 ", this status register can be for representing that whether electronic equipment is in the first state, be operation corresponding to the first operational order whether electronic equipment sends at execution control appliance, or whether electronic equipment does not receive data-signal from current demand signal source.
It should be noted that, the value of this status register can be " 0 ", can be also " 1 ".If the value of status register is " 0 ", represent that this electronic equipment does not obtain the first state; If the value of status register is " 1 ", represent that this electronic equipment obtains the first state.The method of the reduction power consumption that the embodiment of the present invention provides is implemented when this electronic equipment obtains the first state.
Main control chip on the mainboard of electronic equipment is the core component of the mainboard of this electronic equipment, it can be used for each circuit unit on the mainboard of connecting electronic equipment, this main control chip is realized corresponding function by controlling each circuit unit, thereby control whole electronic equipment, realizes corresponding function.In the embodiment of the present invention, electronic equipment is controlled the value of this status register by the primary control program encapsulating in the main control chip on the mainboard of electronic equipment.
Optionally, the first operational order comprises: tuning instruction, zapping instruction or switching signal sourse instruction, this tuning instruction is used to indicate television channel searching, this zapping instruction is used to indicate from TV channel and is switched to the first television channel, and this switching signal sourse instruction is used to indicate from current demand signal source and is switched to first signal source.
Wherein, the first state is carried out control appliance transmission operation corresponding to the first operational order for characterizing comprises: if the first operational order is tuning instruction, the first state is for characterizing the operation of carrying out television channel searching, state when the first state is specially television channel searching; Or if the first operational order is zapping instruction, the first state carries out for characterizing the operation that is switched to the first television channel from TV channel, the first state is specially the state while being switched to the first television channel from TV channel; Or if the first operational order is switching signal sourse instruction, the first state is switched to the operation in first signal source for characterizing to carry out from current demand signal source, the first state is specially the state while being switched to first signal source from current demand signal source.
It should be noted that, the outer signal source of general electronic equipment can comprise: Set Top Box, USB(Universal Serial Bus, USB) interface, DVD(Digital Versatile Disc, digital versatile disc), mobile phone, computer etc.In the embodiment of the present invention, if the first operational order that electronic equipment receives is switching signal sourse instruction, electronic equipment is switched to first signal source port from current demand signal source port, from the current demand signal source being connected with current demand signal source port, switches to the first signal source being connected with first signal source port.
Exemplary, suppose that current television channel is A platform, the first television channel is B platform.User is when using electronic equipment, if electronic equipment receives the zapping instruction that user sends by remote controller, electronic equipment is carried out the operation that is switched to B platform from A platform, and the first state carries out for characterizing electronic equipment the operation that A platform is switched to B platform.
S102, electronic equipment, within the time of the first state continuance, drop to second brightness by the brightness of backlight from the first brightness according to preset rules.
Electronic equipment, within the time of the first state continuance, reduces the brightness of backlight, so that the brightness of backlight drops to the second brightness from the first brightness according to preset rules.
Backlight (Back Light) is a kind of light source that is positioned at the liquid crystal display behind of electronic equipment, and its illumination effect directly has influence on the visual effect of the liquid crystal display of electronic equipment.
It should be noted that, preset rules comprises that the duty ratio of adjusting control signal drops to the first numerical value from current value, and this control signal is the signal that electronic equipment is controlled the brightness of backlight.When the duty ratio of control signal is current value, electronic equipment can by this control signal by the brilliance control of backlight in the first brightness, and, when the duty ratio of this control signal is the first numerical value, electronic equipment can by this control signal by the brilliance control of backlight in the second brightness.So the duty ratio that electronic equipment is adjusted control signal drops to the first numerical value from current value, so that the brightness of backlight is dropped to the second brightness from the first brightness.
Duty ratio is high level shared time ratio within one-period in pulse signal, i.e. the ratio in the cycle of shared time of high level and pulse signal in pulse signal, and as shown in Figure 2, duty ratio is t1:T or t2:T.
Further, electronic equipment can pass through PWM(Pulse Width Modulation, pulse width modulation) adjust the duty ratio of control signal.PWM utilizes the numeral of the processor of electronic equipment to export a kind of very effective technology that analog circuit is controlled, in the embodiment of the present invention, in electronic equipment, be provided with PWM controller, this PWM controller is controlled controlling the break-make of the switching device of back light source brightness circuit, so that control the output of backlight circuit, obtain the pulse that a series of amplitudes are equal, and with the pulse of output, replace the original waveform of control signal, thereby change the duty ratio of control signal.
Concrete, it is to utilize PWM technology to regulate the duty ratio of control signal of the power switch pin output of the high-frequency inverter of controlling back light source brightness circuit that PWM controller is adjusted back light source brightness, thereby realize the power output that regulates backlight, and then change the brightness of backlight.
It should be noted that, PWM controller arranges the ratio of PWM timer by PWM control register, and the ratio of this PWM timer determines the duty ratio of PWM controller output waveform, the i.e. duty ratio of control signal.Electronic equipment gets the first state, within the time of this first state continuance, electronic equipment is set to " 1 " by the value of PWM control register, now, the ratio of electronic equipment PWM timer is set to lower numerical value, the ratio that is about to PWM timer is reduced to the first numerical value from current value, so that the duty ratio of control signal drops to the first numerical value from current value, and then the brightness of backlight is dropped to the second brightness from the first brightness.
Optionally, if the value of PWM control register is set to " 1 ", the electronic equipment ratio of PWM timer is set to lower numerical value; Or if the value of PWM control register is set to " 0 ", the electronic equipment ratio of PWM timer is set to higher numerical value.
Further, electronic equipment is after the time of this first state continuance finishes, electronic equipment is set to " 0 " by the value of PWM control register, now, the ratio of electronic equipment PWM timer is set to former numerical value, the ratio that is about to PWM timer returns to former numerical value so that the duty ratio of control signal returns to former numerical value, and then by the brightness of backlight from the second luminance recovery to the first brightness.
Preferably, the ratio of the first numerical value and current value is more than or equal to 50%, and is less than or equal to 80%.Concrete ratio can be selected as required voluntarily by designer, and the present invention does not limit.
Exemplary, as shown in Figure 2, when if suppose, the value of PWM control register is set to " 0 ", the ratio of electronic equipment PWM timer is set to 0.6, the current value that is the ratio of PWM timer is 0.6, when electronic equipment obtains the first state, electronic equipment is set to " 1 " by the value of PWM control register, electronic equipment is in the first state duration T, T can be 10 seconds, the ratio of electronic equipment PWM timer is set to 0.3, the first numerical value that is the ratio of PWM timer is 0.3, so that the duty ratio of control signal drops to 3:10 from 3:5, from t1:T, drop to t2:T, and then the brightness of backlight is dropped to the second brightness from the first brightness.
Especially, preset rules also comprises that the magnitude of voltage of adjusting control signal output drops to the first numerical value from current value, and this control signal is the signal that electronic equipment is controlled the brightness of backlight.When the magnitude of voltage of control signal output is current value, electronic equipment can by this control signal by the brilliance control of backlight in the first brightness, and, when the magnitude of voltage of this control signal output is the first numerical value, electronic equipment can be by this control signal by the brilliance control of backlight in the second brightness.So the magnitude of voltage that electronic equipment is adjusted control signal output drops to the first numerical value from current value, so that the brightness of backlight is dropped to the second brightness from the first brightness.
Be understandable that, the process of inputting without data-signal when user search television channel, switching TV channel, switching signal source or signal source can be several seconds or several minutes, as, switching TV channel can be 1 second, within several seconds or several minutes, electronic equipment can reduce powder consumption of electronic equipment by reducing the brightness of backlight.And when user completes television channel searching, switching TV channel, switching signal source or signal source and starts outputting data signals, electronic equipment can be by the luminance recovery of backlight to original brightness, so that user can normally watch TV programme.
Embodiments of the invention provide a kind of method that reduces power consumption, by obtaining the first state, this first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or from current demand signal source, do not receive data-signal, and within the time of this first state continuance, according to preset rules, the brightness of backlight is dropped to the second brightness from the first brightness.By this scheme, within the duration at above-mentioned the first state, electronic equipment can reduce the brightness of backlight, therefore, can reduce the power consumption of backlight, thereby reduces the power consumption of electronic equipment.
Embodiment bis-
As shown in Figure 3, embodiments of the invention provide a kind of device 1 that reduces power consumption, and the device 1 of this reduction power consumption can comprise:
Acquiring unit 10, for obtaining the first state, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or from current demand signal source, does not receive data-signal.
Optionally, described the first operational order comprises: tuning instruction, zapping instruction or switching signal sourse instruction, wherein, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, specifically comprise: if described the first operational order is described tuning instruction, described the first state is for characterizing the operation of carrying out television channel searching, and described the first state is specially the state while searching for described television channel; Or, if described the first operational order is described zapping instruction, described the first state carries out for characterizing the operation that is switched to the first television channel from TV channel, and described the first state is specially the state while being switched to described the first television channel from described TV channel; Or, if described the first operational order is described switching signal sourse instruction, described the first state is switched to the operation in first signal source for characterizing to carry out from described current demand signal source, and described the first state is specially the state while being switched to described first signal source from described current demand signal source.
Optionally, described preset rules comprises that the duty ratio of adjusting control signal drops to the first numerical value from current value, described control signal is for controlling the signal of the brightness of described backlight, wherein, described adjustment unit 11, specifically for adjusting the duty ratio of described control signal, from described current value, drop to described the first numerical value, so that the brightness of described backlight is dropped to described the second brightness from described the first brightness.
Optionally, described adjustment unit 11, while being also described current value for the duty ratio when described control signal, by described control signal by the brilliance control of described backlight in described the first brightness, and, when the duty ratio of described control signal is described the first numerical value, by described control signal by the brilliance control of described backlight in described the second brightness.
Optionally, the ratio of described the first numerical value and described current value is more than or equal to 50%, and is less than or equal to 80%.
The device of the reduction power consumption that the embodiment of the present invention provides can be intelligent display device, and wherein, this intelligent display device can comprise the equipment that intelligent television, smart mobile phone and panel computer etc. can received television signals.
Embodiments of the invention provide a kind of device that reduces power consumption, the device of this reduction power consumption obtains the first state, this first state carries out for characterizing the device of this reduction power consumption operation corresponding to the first operational order that control appliance sends, maybe the device of this reduction power consumption does not receive data-signal from current demand signal source, and within the time of this first state continuance, the device of this reduction power consumption drops to second brightness by the brightness of backlight from the first brightness according to preset rules.By this scheme, within the duration at above-mentioned the first state, the device that reduces power consumption can reduce the brightness of backlight, therefore, can reduce the power consumption of backlight, thereby reduces the power consumption of electronic equipment.
Embodiment tri-
As shown in Figure 4, embodiments of the invention provide a kind of electronic equipment, and this electronic equipment can comprise: processor 20, memory 21, system bus 22 and signal source port 23, wherein,
Between processor 20, memory 21 and signal source port 23, by system bus 22, connect and complete mutual communication.
Processor 20 may be monokaryon or multinuclear CPU, or is specific integrated circuit, or for being configured to implement one or more integrated circuits of the embodiment of the present invention.
Memory 21 can be high-speed RAM memory, can be also nonvolatile memory (non-volatile memory), for example at least one magnetic disc store.
Memory 21 is for the execution instruction of store electrons equipment.Concrete, in the execution instruction of electronic equipment, can comprise software program and software code.
Signal source port 23 can be used for receiving the data-signal from outer signal source device.
Concrete, described processor 20, for obtaining the first state by described system bus 22, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or by described signal source port 23, from current demand signal source, do not receive data-signal, and within the time of described the first state continuance, according to preset rules, the brightness of backlight is dropped to the second brightness from the first brightness; Described memory 21 can be used for storing described the first brightness, described the second brightness, described the first state and the software code of described the first brightness, the software code of the software code of described the second brightness, described the first state, and control electronic equipment completes the software program of said process, thereby make described processor 20 by carrying out the described software program of storage in described memory 21 and calling described software code, to complete said process.
Optionally, described the first operational order comprises: tuning instruction, zapping instruction or switching signal sourse instruction, wherein, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, specifically comprise: if described the first operational order is described tuning instruction, described the first state is for characterizing the operation of carrying out television channel searching, and described the first state is specially the state while searching for described television channel; Or, if described the first operational order is described zapping instruction, described the first state carries out for characterizing the operation that is switched to the first television channel from TV channel, and described the first state is specially the state while being switched to described the first television channel from described TV channel; Or, if described the first operational order is described switching signal sourse instruction, described the first state is switched to the operation in first signal source for characterizing to carry out from described current demand signal source, and described the first state is specially the state while being switched to described first signal source from described current demand signal source.
Optionally, described preset rules comprises that the duty ratio of adjusting control signal drops to the first numerical value from current value, described control signal is for controlling the signal of the brightness of described backlight, wherein, described processor 20, specifically for adjusting the duty ratio of described control signal, from described current value, drop to described the first numerical value, so that the brightness of described backlight is dropped to described the second brightness from described the first brightness.
Optionally, described processor 20, while being also described current value for the duty ratio when described control signal, by described control signal by the brilliance control of described backlight in described the first brightness, and, when the duty ratio of described control signal is described the first numerical value, by described control signal by the brilliance control of described backlight in described the second brightness.
Optionally, the ratio of described the first numerical value and described current value is more than or equal to 50%, and is less than or equal to 80%.
It should be noted that, the memory 21 that the embodiment of the present invention provides can comprise the numerical value of the duty ratio of control signal, i.e. the first numerical value and current value.
The electronic equipment that the embodiment of the present invention provides can be intelligent display device, and wherein, this intelligent display device can comprise the equipment that intelligent television, smart mobile phone and panel computer etc. can received television signals.
Embodiments of the invention provide a kind of electronic equipment, this electronic equipment obtains the first state, this first state carries out for characterizing this electronic equipment operation corresponding to the first operational order that control appliance sends, or this electronic equipment does not receive data-signal from current demand signal source, and within the time of this first state continuance, this electronic equipment drops to second brightness by the brightness of backlight from the first brightness according to preset rules.By this scheme, within the duration at above-mentioned the first state, electronic equipment can reduce the brightness of backlight, therefore, can reduce the power consumption of backlight, thus the power consumption of electronic equipment.
Those skilled in the art can be well understood to, for convenience and simplicity of description, only the division with above-mentioned each functional module is illustrated, in practical application, can above-mentioned functions be distributed and by different functional modules, completed as required, the internal structure that is about to device is divided into different functional modules, to complete all or part of function described above.The specific works process of the device of foregoing description, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In the several embodiment that provide in the application, should be understood that disclosed apparatus and method can realize by another way.For example, device embodiment described above is only schematic.
Described unit can or can not be also physically to separate, and the parts that show as unit can be a physical location or a plurality of physical location, can be positioned at a place, or also can be distributed to a plurality of different local.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and also can adopt the form of SFU software functional unit to realize.
If the form of SFU software functional unit of usining described integrated unit realizes and during as production marketing independently or use, can be stored in a read/write memory medium.Understanding based on such, the all or part of of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this software product is stored in a storage medium, comprise that some instructions are with so that an equipment (can be single-chip microcomputer, chip etc.) or processor (processor) are carried out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory, magnetic disc or CDs.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by the described protection range with claim.
Claims (10)
1. a method that reduces power consumption, is characterized in that, comprising:
Obtain the first state, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or from current demand signal source, does not receive data-signal;
Within the time of described the first state continuance, according to preset rules, the brightness of backlight is dropped to the second brightness from the first brightness.
2. the method for reduction power consumption according to claim 1, is characterized in that, described the first operational order comprises: tuning instruction, zapping instruction or switching signal sourse instruction,
Wherein, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, and specifically comprises:
If described the first operational order is described tuning instruction, described the first state is for characterizing the operation of carrying out television channel searching, and described the first state is specially the state while searching for described television channel; Or,
If described the first operational order is described zapping instruction, described the first state carries out for characterizing the operation that is switched to the first television channel from TV channel, and described the first state is specially the state while being switched to described the first television channel from described TV channel; Or,
If described the first operational order is described switching signal sourse instruction, described the first state is switched to the operation in first signal source for characterizing to carry out from described current demand signal source, and described the first state is specially the state while being switched to described first signal source from described current demand signal source.
3. the method for reduction power consumption according to claim 1 and 2, is characterized in that, described preset rules comprises that the duty ratio of adjusting control signal drops to the first numerical value from current value, and described control signal is the signal of the brightness of the described backlight of control,
Wherein, the described method of the second brightness that the brightness of backlight dropped to from the first brightness according to preset rules, specifically comprises:
The duty ratio of adjusting described control signal drops to described the first numerical value from described current value, so that the brightness of described backlight is dropped to described the second brightness from described the first brightness.
4. the method for reduction power consumption according to claim 3, is characterized in that, described method also comprises:
When the duty ratio of described control signal is described current value, by described control signal by the brilliance control of described backlight in described the first brightness, and,
When the duty ratio of described control signal is described the first numerical value, by described control signal by the brilliance control of described backlight in described the second brightness.
5. the method for reduction power consumption according to claim 4, is characterized in that,
The ratio of described the first numerical value and described current value is more than or equal to 50%, and is less than or equal to 80%.
6. a device that reduces power consumption, is characterized in that, comprising:
Acquiring unit, for obtaining the first state, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, or from current demand signal source, does not receive data-signal;
Adjustment unit, in the time for described the first state continuance of obtaining at acquiring unit, drops to second brightness by the brightness of backlight from the first brightness according to preset rules.
7. the device of reduction power consumption according to claim 6, is characterized in that, described the first operational order comprises: tuning instruction, zapping instruction or switching signal sourse instruction,
Wherein, described the first state carries out for characterizing operation corresponding to the first operational order that control appliance sends, and specifically comprises:
If described the first operational order is described tuning instruction, described the first state is for characterizing the operation of carrying out television channel searching, and described the first state is specially the state while searching for described television channel; Or,
If described the first operational order is described zapping instruction, described the first state table carries out for levying the operation that is switched to the first television channel from TV channel, and described the first state is specially the state while being switched to described the first television channel from described TV channel; Or,
If described the first operational order is described switching signal sourse instruction, described the first state is switched to the operation in first signal source for characterizing to carry out from described current demand signal source, and described the first state is specially the state while being switched to described first signal source from described current demand signal source.
8. according to the device of the reduction power consumption described in claim 6 or 7, it is characterized in that, described preset rules comprises that the duty ratio of adjusting control signal drops to the first numerical value from current value, and described control signal is the signal of the brightness of the described backlight of control, wherein,
Described adjustment unit, drops to described the first numerical value specifically for adjusting the duty ratio of described control signal from described current value, so that the brightness of described backlight is dropped to described the second brightness from described the first brightness.
9. the device of reduction power consumption according to claim 8, is characterized in that,
Described adjustment unit, while being also described current value for the duty ratio when described control signal, by described control signal by the brilliance control of described backlight in described the first brightness, and, when the duty ratio of described control signal is described the first numerical value, by described control signal by the brilliance control of described backlight in described the second brightness.
10. the device of reduction power consumption according to claim 9, is characterized in that,
The ratio of described the first numerical value and described current value is more than or equal to 50%, and is less than or equal to 80%.
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