CN103295535B - A kind of inner temperature regulating method of display and display - Google Patents
A kind of inner temperature regulating method of display and display Download PDFInfo
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- CN103295535B CN103295535B CN201310112991.8A CN201310112991A CN103295535B CN 103295535 B CN103295535 B CN 103295535B CN 201310112991 A CN201310112991 A CN 201310112991A CN 103295535 B CN103295535 B CN 103295535B
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Abstract
The invention provides a kind of inner temperature regulating method and display of display, be provided with backlight and the fan for display heat radiation in display, the method comprises the step of silent mode, and the step of described silent mode comprises: start silent mode; The rotating speed controlling fan described in display is reduced to the first pre-set velocity value, to reduce the interference of fan running sound; Obtain the internal temperature of display; According to the corresponding relation of the temperature prestored and target brightness value, the internal temperature according to display determines target brightness value; The brightness controlling the backlight of display is reduced to the target brightness value of described decision; Wherein, in the corresponding relation of the described temperature that prestores and target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing.Technical scheme of the present invention while guarantee display normally works, can reduce the interference of fan running sound.
Description
Technical field
The present invention relates to display control field, particularly relate to a kind of inner temperature regulating method and display of display.
Background technology
Light-emitting component in display also can produce high temperature while output light, therefore needs to dispel the heat to display interior.In a lot of display, be usually equipped with fan, dispel the heat more efficiently to facilitate display.
Such as, publication number disclosed in 11 days January in 2011 is just disclose in the Taiwan patent of invention instructions of TWI336008 to be a kind ofly equipped with the liquid crystal display of fan and the control method of internal temperature thereof, this liquid crystal display comprises backlight module and heat abstractor, light emitting source control module is installed in backlight module, fan, fan control unit and temperature sensing unit are installed in heat abstractor.The program is by the internal temperature of temperature sensing unit sensing liquid crystal display, and when internal temperature is greater than the first preset value, fan control unit is by the rotating speed of fan from the first adjustment of rotational speed to the second rotating speed, and the second rotating speed is greater than the first rotating speed.Therefore, in the program, when the suitable environment working temperature mxm. of display interior temperature higher than light source, raise speed to the rotating speed of fan.
When such display is used for video camera; along with the increase of video camera working time; the temperature of display interior will raise; display internal fan can be raised speed automatically; the sound of fan running often can be received in the microphone of video camera; cause unnecessary interference; especially when the Professional display monitor being furnished with fan is installed to SNG (SatelliteNewsGathering; Satellite news mobile control room) or Studio time; on-the-spot sound is relatively little; the sound of the fan now in display just seems special outstanding, and the interference caused is also larger.As can be seen here, display temperature control method of the prior art can make the sound of display fan become larger, causes interference.
Summary of the invention
The object of the present invention is to provide a kind of inner temperature regulating method and display of display, can reduce display at work fan produce sound.
One embodiment of the present of invention provide a kind of inner temperature regulating method of display, and be provided with backlight and the fan for display heat radiation in display, the method comprises the step of silent mode, and the step of described silent mode comprises:
Start silent mode;
The rotating speed controlling fan described in display is reduced to the first pre-set velocity value, to reduce the interference of fan running sound;
Obtain the internal temperature of display;
According to the corresponding relation of the temperature prestored and target brightness value, the internal temperature according to display determines target brightness value;
The brightness controlling the backlight of display is reduced to the target brightness value of described decision;
Wherein, in the corresponding relation of the described temperature that prestores and target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing.
Another embodiment of the present invention provides a kind of display, comprising:
Backlight;
Pattern setting interface, for arranging the mode of operation that display temperature regulates;
Fan, for being display heat radiation;
Temperature detecting unit, for detecting the internal temperature in described display;
Fan control unit, for after pattern setting interface starts silent mode, the rotating speed controlling fan described in display is reduced to the first pre-set velocity value, to reduce the interference of fan running sound;
Backlight control module, under starting silent mode at pattern setting interface, according to the corresponding relation of the temperature prestored and target brightness value, internal temperature according to display determines target brightness value, and the brightness controlling the backlight of display is reduced to the target brightness value of described decision, wherein, in the corresponding relation of the described temperature that prestores and target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing.
Compared with prior art, inner temperature regulating method and the display of display provided by the invention provide silent mode, under the silent mode, the rotating speed of fan is reduced to the first pre-set velocity value, eliminate the impact of fan running sound, simultaneously, in order to ensure that rotation speed of the fan is when being reduced to the first pre-set velocity value, display will cause duty decline even to damage because of heat radiation is bad, also can according to the corresponding relation of the temperature prestored and target brightness value in silent mode, internal temperature according to display determines target brightness value, and the brightness of the backlight controlling display is reduced to the target brightness value of this decision, and in the corresponding relation of said temperature and target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing, the heat energy produced because of backlight work can be reduced like this, reach the object of cooling.Therefore, technical scheme of the present invention while guarantee display normally works, can reduce the interference of fan running sound.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the silent mode step in a kind of display interior temperature control method of providing in one embodiment of the invention;
Fig. 2 is the curve map of a kind of specific implementation of the corresponding relation of temperature and target brightness value;
Fig. 3 is the curve map of the another kind of specific implementation of the corresponding relation of temperature and target brightness value;
Fig. 4 is the curve map of another specific implementation of the corresponding relation of temperature and target brightness value;
Fig. 5 is the process flow diagram of the general mode step in a kind of display interior temperature control method of providing in one embodiment of the invention;
Fig. 6 is the block scheme of the part-structure of the display provided in another embodiment of the present invention.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
Embodiment one
One embodiment of the present of invention provide a kind of inner temperature regulating method of display, are provided with backlight and the fan for display heat radiation in this display.Inner temperature regulating method in the present embodiment comprises the step of silent mode, and Fig. 1 is the process flow diagram of a kind of specific implementation of silent mode step.
See Fig. 1, this silent mode step comprises:
Step S101: start silent mode;
User can pass through physical switch or on-screen menu (onscreendisplay) in practice, starts the silent mode of display.User is started to the scheme of display silent mode by physical switch, need by a kind of mode switch of hardware implementing; User is started to the scheme of display silent mode by the mode of on-screen menu, need by software simulating pattern set-up function interface.
Step S102: the rotating speed controlling the fan in display is reduced to the first pre-set velocity value, to reduce the interference of fan running sound;
The degrees of tolerance to fan sound size with the performance of fan own and user of choosing of the first pre-set velocity value here has relation.Even if the such as performance of fan itself determines under equal rotating speed, the sound size that different fan produces is different; Even the degrees of tolerance of user to fan size determines same fan, In the view of different users receptible maximum speed be also different.More general a kind of mode is that the first pre-set velocity value is set to zero, now, the step that the rotating speed controlling display fan is reduced to the first pre-set velocity value can be realized by the fan of closing in display, can not certainly close fan and make it be in holding state that speed is zero.
Step S103: the internal temperature obtaining display;
In reality, the internal temperature obtained in display can obtain by reading the temperature detection signal being arranged on the temperature detection device of display interior, temperature detection device can be arranged on any position of display interior, is preferably arranged near the parts that serviceability temperature influence is larger.
Step S104: by the corresponding relation according to the temperature prestored and target brightness value, internal temperature according to display determines target brightness value, wherein, in the corresponding relation of the described temperature that prestores and target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing.
Step S105: the brightness controlling the backlight of display is reduced to the target brightness value determined in step S104.
As can be seen here, the inner temperature regulating method of the display that the present embodiment provides is the duty that user provides silent mode, under this silent mode, the rotating speed of fan is reduced to the first pre-set velocity value, eliminate the impact of fan running sound, simultaneously, in order to ensure that rotation speed of the fan is when being reduced to the first pre-set velocity value, display will cause duty decline even to damage because of heat radiation is bad, also can according to the corresponding relation of the temperature prestored and target brightness value in silent mode, internal temperature according to display determines target brightness value, and the brightness of the backlight controlling display is reduced to the target brightness value of this decision.
And in the corresponding relation of said temperature and target brightness value, along with the rising of temperature, the overall trend of target brightness value, for reducing, can reduce the heat energy produced because of backlight work like this, reach the object of cooling.Therefore, the inner temperature regulating method of the display in the present embodiment while guarantee display normally works, can reduce the interference of fan running sound.
In practice, the temperature prestored and the corresponding relation of target brightness value can exist with the form of a continuous print functional relation, and the form of the mapping table that also can be formed with discrete temperature values and corresponding target brightness value exists.
In the temperature prestored of the present embodiment and the corresponding relation of target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing, and this overall trend reduces to comprise target brightness value along with the rising of temperature and successively reduces; Also comprise the reduction of the boost phase along with temperature, and overall trend is for reducing.
In addition, under the silent mode, the simple brightness slowly reducing backlight may have little time the sharply rising tackling temperature, when the internal temperature of display is too high, the security of display is most important, and the brightness that now can control the backlight of display is down to minimum and maintains.For this reason one preferred embodiment in, in the corresponding relation of the temperature prestored and target brightness value, the target brightness value position that temperature is greater than corresponding to the first preset temperature can be set to minimum, and in display actual motion, when the internal temperature of display is greater than the first preset temperature, according to the corresponding relation of said temperature and desired value, the brightness that can control the backlight of display is maintained minimum.
Here minimum is at least relevant with the performance of backlight, and under backlight equivalent brightness, thermal value is lower, and the minimum in above-mentioned corresponding relation just can set get Geng Gao.More general a kind of mode is that above-mentioned minimum is set to zero, when minimum is set to zero, the step controlling the brightness maintenance minimum of the backlight of display can be realized by the backlight of closing in display, and the holding state that also can be in zero luminance by maintaining backlight realizes.
Such as Fig. 2 shows the corresponding relation of a kind of concrete temperature and target brightness value, and see Fig. 2, in this corresponding relation, when temperature is less than or equal to the first preset temperature T1, target brightness value reduces along with the rising of temperature; When temperature is greater than the first preset temperature T1 temperature T1, target brightness value is maintained minimum, will in fig. 2 as a special case, and this minimum is taken as zero.Like this, when the temperature of display is at the first below preset temperature T1, the brightness controlling display backlight source reduces, gradually when the temperature of display is higher than the first preset temperature T1, the brightness in display backlight source will be set to zero, farthest avoid that temperature is too high causes damage to display.
In fig. 2, in region lower than the first preset temperature T1, the speed that target brightness value successively decreases along with the rising of temperature is identical, therefore the form of the identical line segment of slope is presented in Fig. 2 in this part, and in reality, the deployment considering other supporting radiating elements (such as heat radiator) of some display is not very abundant, in the region that temperature is higher, faster the temperature of display should be lowered, in such a scenario, another kind temperature as shown in Figure 3 and the corresponding relation of target brightness value is proposed.
See Fig. 3, when temperature is between the second preset temperature T2 and the first preset temperature T1, temperature is higher, and the speed that target brightness value raises along with temperature and successively decreases is faster, and the first preset temperature T1 is here greater than the second preset temperature T2.Like this, utilize corresponding relation illustrated in fig. 3, when display interior temperature is between the second preset temperature T2 and the first preset temperature T1, along with the rising of temperature, the speed that back light source brightness declines is faster.
In the present embodiment, the speed that target brightness value raises along with temperature and successively decreases refers to: when temperature raises a unit, the amplitude that target brightness value successively decreases.
It should be noted that, realize temperature higher, the faster a kind of implementation be incessantly confined in Fig. 3 of speed that target brightness value raises along with temperature and successively decreases, the scheme of the stepped quickening of rate of decline can also be adopted, such as, another temperature shown in Fig. 4 and the corresponding relation of target brightness value.
In the diagram, the scope between the second preset temperature T2 to the first preset temperature T1 is divided into multiple temperature range, such as in the diagram, between T2 and T1, is divided into three temperature ranges by T4, T5.The speed that the corresponding target brightness value of each temperature range raises along with temperature and successively decreases, temperature range is the closer to the first preset temperature T1, and the speed that target brightness value corresponding to this temperature range raises along with temperature and successively decrease is faster.Such as in the diagram, at interval [T2, T4] in, the speed that target brightness value raises along with temperature and successively decreases is identical, at interval [T4, T5] in, the speed that target brightness value raises along with temperature and successively decreases also is identical, at interval [T5, T1] in, the speed that target brightness value raises along with temperature and successively decreases also is identical, by interval [T2, T4], [T4, T5] and [T5, T1] in target brightness value to raise and the speed of successively decreasing is designated as V1 successively along with temperature, V2 and V3, then because the distance relation of these three intervals and the first preset temperature T1, make V1<V2<V3.In corresponding relation shown in Figure 4, in the scope of the second preset temperature T2 to the first preset temperature T1, the corresponding relation of target brightness value and temperature is the form of broken line.
In the corresponding relation of Fig. 3 and target brightness value illustrated in fig. 4 and temperature, when only having temperature higher than the second preset temperature T2, target brightness value just starts to decline.In practice, second preset temperature T2 can value flexibly, a kind of special case situation the second preset temperature T2 is set to the initial temperature that normal temperature or display work under the silent mode, now in fact be equivalent to display from startup silent mode, just reduce the brightness in display backlight source gradually.
It should be noted that; above-mentioned Fig. 2 is only three kinds of concrete implementations to the corresponding relation of temperature illustrated in fig. 4 and target brightness value; those skilled in the art should be understood that; every rising met along with temperature, the overall trend of target brightness value is that the scheme of reduction is all in protection scope of the present invention.
Under above-mentioned silent mode, the brightness controlling to reduce backlight can be realized by the drive current reducing backlight.
In addition, the inner temperature regulating method of the display in the present embodiment can also comprise general mode step, and Fig. 5 shows a kind of specific implementation of general mode step, comprising:
S501: start general mode;
In practice, for physical switch or on-screen menu (onscreendisplay) can be passed through, start the general mode of display.User is started to the scheme of display general mode by physical switch, need by a kind of mode switch of hardware implementing; User is started to the scheme of display silent mode by the mode of on-screen menu, need by a kind of pattern set-up function interface of software simulating.
In addition, user can start silent mode and the general mode of display respectively by different physical switchs or different on-screen menus, also can be switched between the silent mode and general mode of display by same physical switch or same on-screen menu.
S502: the internal temperature obtaining display;
In reality, the internal temperature obtained in display can obtain by reading the temperature detection signal being arranged on the temperature detection device of display interior, temperature detection device can be arranged on any position of display interior, is preferably arranged near the parts that serviceability temperature influence is larger.
S503: along with the rising of temperature, controls the rotating speed of the fan improved in display.
In the normal mode, along with the rising of temperature, utilize fan to complete main heat sinking function, therefore need the rotating speed of the fan improved in display, so that faster and more efficiently dispel the heat to display.In practice, the rotating speed of fan can be set to two grades, i.e. Half Speed and full speed, and can determine that the rotating speed of fan is in Half Speed or full speed according to the height of temperature.
In addition, consider the limitation of some display fan cooling performance, in the step of general mode, can also comprise the rising along with temperature, the auxiliary means reducing back light source brightness that adopt carry out the step of dispelling the heat.Particularly, when can work as temperature higher than the 3rd preset temperature T3, control the brightness reducing backlight.Why the auxiliary means reducing back light source brightness only just perform higher than during the 3rd preset temperature T3 in temperature, because when the internal temperature of display is lower, fan is utilized to accelerate can reach well the object of heat radiation, and display work in the normal mode time, user more focuses on the display effect of display, so just can reduce the brightness of backlight when being only necessary.
When display is in general mode, the brightness reducing backlight can be realized by the drive current reducing backlight.
Although no matter display is being in silent mode or is being in general mode, all may control the brightness reducing backlight, but because under the silent mode, the rotating speed of fan is lower to reduce interference, therefore in a preferred embodiment, the brightness of the backlight in silent mode step is lower than the brightness of the backlight in general mode step, thus temperature regulation effect under making silent mode and under general mode is suitable.
Embodiment two
Fig. 6 is the block scheme of the part-structure of a kind of display that an alternative embodiment of the invention provides, see Fig. 6, the display in the present embodiment comprises: backlight 61, pattern setting interface 62, fan 63, temperature detecting unit 64, fan control unit 65, backlight control module 66.
Backlight 61 provides backlight for display.
The mode of operation that pattern setting interface 62 regulates for arranging display temperature.In practice, pattern setting interface 62 can be by hard-wired mode switch, also can by the pattern set-up function interface of software simulating.For the situation that pattern setting interface 62 is by hard-wired mode switch, user can arrange the mode of operation that display temperature regulates by actual physical switch; For the situation that pattern setting interface 62 is the pattern set-up function interface by software simulating, user can arrange the mode of operation of display temperature adjustment by on-screen menu.
No matter be operated by physical switch or on-screen menu, user can start silent mode and the general mode of display respectively by different physical switchs or different on-screen menus, also can be switched between the silent mode and general mode of display by same physical switch or same on-screen menu.
Fan 63 is for being display heat radiation.
Temperature detecting unit 64 is for the internal temperature in detection display device.
Temperature detecting unit 64 can be various types of temperature sensor in practice, and temperature detecting unit 64 can be arranged on the inner any position of display, is preferably arranged near the parts that serviceability temperature influence is larger.
After fan control unit 65 starts silent mode for pattern setting interface 62, the rotating speed controlling the fan 63 in display is reduced to the first pre-set velocity value, to reduce the interference of fan running sound.
Choose performance own and the degrees of tolerance of user to fan sound size with fan of the first pre-set velocity value here have relation.Even if the such as performance of fan itself determines under equal rotating speed, the sound size that different fan produces is different; Even the degrees of tolerance of user to fan size determines same fan, In the view of different users receptible maximum speed be also different.More general a kind of mode is that the first pre-set velocity value is set to zero, now, the step that the rotating speed controlling display fan is reduced to the first pre-set velocity value can be realized by the fan of closing in display, can not certainly close fan and make it be in holding state that speed is zero.
Backlight control module 65 is under in pattern setting, interface 62 starts silent mode, according to the corresponding relation of the temperature prestored and target brightness value, internal temperature according to display determines target brightness value, and the brightness controlling the backlight 61 of display is reduced to determined target brightness value.In the corresponding relation of the temperature prestored and target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing.
As can be seen here, the display that the present embodiment provides is the duty that user provides silent mode, under this silent mode, the rotating speed of fan 63 is reduced to the first pre-set velocity value, eliminate the impact of fan 63 operating sound, simultaneously, in order to ensure that fan 63 rotating speed is being reduced to the first pre-set velocity value, display will cause duty decline even to damage because of heat radiation is bad, also can according to the corresponding relation of the temperature prestored and target brightness value in silent mode, internal temperature according to display determines target brightness value, and the brightness of the backlight 61 controlling display is reduced to the target brightness value of this decision.
And in the corresponding relation of said temperature and target brightness value, along with the rising of temperature, the overall trend of target brightness value, for reducing, can reduce the heat energy produced because backlight 61 works like this, reach the object of cooling.Therefore, the display in the present embodiment while the normal work of guarantee, can reduce the interference of fan running sound.
In practice, the temperature prestored and the corresponding relation of target brightness value can exist with the form of a continuous print functional relation, and the form of the mapping table that also can be formed with discrete temperature values and corresponding target brightness value exists.
In the temperature prestored of the present embodiment and the corresponding relation of target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing, and this overall trend reduces to comprise target brightness value along with the rising of temperature and successively reduces; Also comprise the reduction of the boost phase along with temperature, and overall trend is for reducing.
In addition, under the silent mode, the simple brightness slowly reducing backlight 61 may have little time the sharply rising tackling temperature, when the internal temperature of display is too high, the security of display is most important, and the brightness that now can control the backlight 61 of display is down to minimum and maintains.For this reason one preferred embodiment in, in the corresponding relation of the temperature prestored and target brightness value, the target brightness value position that temperature is greater than corresponding to the first preset temperature can be set to minimum, and in display actual motion, under pattern setting interface starts silent mode, when the internal temperature of display is greater than the first preset temperature, the brightness that backlight control module 66 controls the backlight 61 of display is maintained above-mentioned minimum.
When the internal temperature of display is greater than the first preset temperature, according to the corresponding relation of said temperature and desired value, the brightness that can control the backlight of display is maintained minimum.Here minimum is at least relevant with the performance of backlight 61, and under backlight 61 equivalent brightness, thermal value is lower, and the minimum in above-mentioned corresponding relation just can set get Geng Gao.More general a kind of mode is that above-mentioned minimum is set to zero, when minimum is set to zero, the brightness maintenance minimum that backlight control module 66 controls backlight 61 can realize by closing backlight 61, and the holding state that also can be in zero luminance by maintaining backlight 61 realizes.
Still can adopt in the present embodiment and be used as actual corresponding relation with the corresponding relation of the temperature shown in Fig. 2 in embodiment one and target brightness value, thus realize when the temperature of display is higher than the first preset temperature T1, the brightness in display backlight source will be set to zero, farthest avoid that temperature is too high causes damage to display.
In addition, also can the corresponding relation of set temperature and target brightness value be that temperature is higher when temperature is between the second preset temperature T2 and the first preset temperature T1, the speed that target brightness value raises along with temperature and successively decreases be faster, wherein, the first preset temperature T1 is greater than the second preset temperature T2.Here the speed that target brightness value successively decreases along with temperature rising refers to: when temperature raises a unit, the amplitude that target brightness value successively decreases.Like this, in the region that temperature is higher, can faster the temperature of display be lowered.
And it is higher to realize temperature, the speed that target brightness value raises along with temperature and successively decreases can adopt the corresponding relation shown in Fig. 3 and Fig. 4 in embodiment one sooner, and the speed that is namely respectively is accelerated to accelerate with velocity step ladder shape continuously.
Those skilled in the art should be understood that; in the present embodiment; be not limited to the corresponding relation between temperature and target brightness value adopted as shown in Fig. 2 to Fig. 4; every rising met along with temperature, the overall trend of target brightness value is that the scheme of reduction is all in protection scope of the present invention.
In addition, the display in the present embodiment additionally provides the working method of general mode, now can set interface 62 by pattern and start general mode.
Fan control unit 65, after pattern setting interface 62 starts general mode, obtains the internal temperature display from temperature detecting unit 64, along with the rising of temperature, control the rotating speed improving display fan 63.In the normal mode, along with the rising of temperature, utilize fan 63 to complete main heat sinking function, therefore need the rotating speed of the fan 63 improved in display, so that faster and more efficiently dispel the heat to display.In practice, the rotating speed of fan 63 can be set to third gear, i.e. stall, Half Speed and full speed, and can determine that the rotating speed of fan 63 is in stall, Half Speed or full speed according to the height of temperature.
In addition, consider the limitation of some display fan cooling performance, after pattern setting interface 62 starts general mode, along with the rising of internal temperature, fan control unit 65 is also for controlling the brightness reducing backlight 61.Particularly, when can work as temperature higher than the 3rd preset temperature T3, backlight control module 66 controls the brightness reducing backlight 61.Why the auxiliary means reducing backlight 61 brightness only just perform higher than during the 3rd preset temperature T3 in temperature, because when the internal temperature of display is lower, fan is utilized to accelerate can reach well the object of heat radiation, and display work in the normal mode time, user more focuses on the display effect of display, so just can reduce the brightness of backlight 61 when being only necessary.
No matter be that display is in silent mode or general mode, the brightness reducing backlight all can be realized by the drive current reducing backlight.
Although no matter display is being in silent mode or is being in general mode, all may control the brightness reducing backlight, but because under the silent mode, in order to reduce interference, to control the rotating speed of fan lower, therefore in a preferred embodiment, the brightness of the backlight in silent mode step is lower than the brightness of the backlight in general mode step, thus temperature regulation effect under making silent mode and under general mode is suitable.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (16)
1. the inner temperature regulating method of a display, it is characterized in that, be provided with backlight and the fan for display heat radiation in display, this display has silent mode and general mode, the method comprises the step of silent mode, and the step of described silent mode comprises:
Start silent mode;
The rotating speed controlling fan described in display is reduced to the first pre-set velocity value, to reduce the interference of fan running sound, and under silent mode the rotating speed of described fan lower than the rotating speed of fan described under general mode;
Obtain the internal temperature of display;
According to the corresponding relation of the temperature prestored and target brightness value, the internal temperature according to display determines target brightness value;
The brightness controlling the backlight of display is reduced to the target brightness value of decision;
Wherein, in the corresponding relation of the described temperature that prestores and target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing.
2. the method for claim 1, it is characterized in that, in the corresponding relation of the described temperature that prestores and target brightness value, the target brightness value that temperature is greater than corresponding to the first preset temperature is maintained minimum, the target brightness value that the brightness of backlight controlling display is reduced to decision comprises: when the internal temperature of described display is greater than the first preset temperature, according to the corresponding relation of the temperature prestored and target brightness value, the brightness controlling the backlight of display is maintained described minimum.
3. method as claimed in claim 2, it is characterized in that, in the corresponding relation of the described temperature that prestores and target brightness value, when temperature is between the second preset temperature and the first preset temperature, temperature is higher, target brightness value raises and the speed of successively decreasing faster along with temperature, and wherein the first preset temperature is greater than the second preset temperature.
4. method as claimed in claim 3, it is characterized in that, in the corresponding relation of the described temperature that prestores and target brightness value, scope between second preset temperature to the first preset temperature is divided into multiple temperature range, the speed that the corresponding target brightness value of each temperature range raises along with temperature and successively decreases, described temperature range is the closer to the first preset temperature, and the speed that target brightness value corresponding to this temperature range raises along with temperature and successively decrease is faster.
5. as the method in Claims 1-4 as described in any one, it is characterized in that, the step that the rotating speed of fan described in described control display is reduced to the first pre-set velocity value comprises: close the fan in described display.
6. as the method in Claims 1-4 as described in any one, it is characterized in that, described method also comprises the step of general mode, and the step of described general mode comprises:
Start general mode;
Obtain the internal temperature of display;
Along with the rising of internal temperature, control the rotating speed of the fan improved in display.
7. method as claimed in claim 6, it is characterized in that, the step of described general mode also comprises: along with the rising of internal temperature, controls the brightness reducing backlight.
8. method as claimed in claim 7, is characterized in that, the brightness of the backlight in silent mode step is lower than the brightness of the backlight in general mode step.
9. a display, comprising:
Backlight;
Pattern setting interface, for arranging the mode of operation that display temperature regulates, this display has silent mode and general mode;
Fan, for being display heat radiation;
Temperature detecting unit, for detecting the internal temperature in described display;
Fan control unit, for after pattern setting interface starts silent mode, the rotating speed controlling fan described in display is reduced to the first pre-set velocity value, to reduce the interference of fan running sound, and under silent mode the rotating speed of described fan lower than the rotating speed of fan described under general mode;
Backlight control module, under starting silent mode at pattern setting interface, according to the corresponding relation of the temperature prestored and target brightness value, internal temperature according to display determines target brightness value, and the brightness controlling the backlight of display is reduced to the target brightness value of decision, wherein, in the corresponding relation of the described temperature that prestores and target brightness value, along with the rising of temperature, the overall trend of target brightness value is for reducing.
10. display as claimed in claim 9, is characterized in that, in the corresponding relation of the described temperature that prestores and target brightness value, the target brightness value that temperature is greater than corresponding to the first preset temperature is maintained minimum;
Start after under silent mode at pattern setting interface, when the internal temperature of described display is greater than the first preset temperature, described backlight control module is maintained described minimum specifically for the brightness of the backlight controlling display.
11. displays as claimed in claim 10, it is characterized in that, in the corresponding relation of the described temperature that prestores and target brightness value, when temperature is between the second preset temperature and the first preset temperature, temperature is higher, the speed that target brightness value raises along with temperature and successively decreases is faster, and wherein the first preset temperature is greater than the second preset temperature.
12. displays as claimed in claim 11, it is characterized in that, in the corresponding relation of the described temperature that prestores and target brightness value, scope between second preset temperature to the first preset temperature is divided into multiple temperature range, the speed that the corresponding target brightness value of each temperature range raises along with temperature and successively decreases, described temperature range is the closer to the first preset temperature, and the speed that target brightness value corresponding to this temperature range raises along with temperature and successively decrease is faster.
13., as the display in claim 9 to 12 as described in any one, is characterized in that, described fan control unit, specifically for after pattern setting interface starts silent mode, closes the fan in display.
14. as the display in claim 9 to 12 as described in any one, it is characterized in that, described fan control unit is also for after pattern setting interface starts general mode, the internal temperature display is obtained from temperature detecting unit, along with the rising of internal temperature, control the rotating speed improving display fan.
15. displays as claimed in claim 14, is characterized in that, described fan control unit, also for after pattern setting interface starts general mode, along with the rising of internal temperature, controls the brightness reducing backlight.
16. displays as claimed in claim 9, is characterized in that, described pattern setting interface comprises the pattern set-up function interface by software simulating, or by hard-wired mode switch.
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WO2019183897A1 (en) * | 2018-03-29 | 2019-10-03 | 深圳市大疆创新科技有限公司 | Control method for fan, display device, remote control, and unmanned aerial vehicle set |
CN111933068A (en) * | 2020-07-10 | 2020-11-13 | 惠州市德赛西威汽车电子股份有限公司 | Driving method of display screen |
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CN112133252B (en) * | 2020-11-03 | 2021-08-17 | 安徽熙泰智能科技有限公司 | Temperature compensation method and system for display brightness |
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