CN106647122B - A kind of display device and its ameliorative way that resonates - Google Patents
A kind of display device and its ameliorative way that resonates Download PDFInfo
- Publication number
- CN106647122B CN106647122B CN201611015641.XA CN201611015641A CN106647122B CN 106647122 B CN106647122 B CN 106647122B CN 201611015641 A CN201611015641 A CN 201611015641A CN 106647122 B CN106647122 B CN 106647122B
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- display device
- rotating speed
- current picture
- fan unit
- processing unit
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Controls And Circuits For Display Device (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
About a kind of display device and resonance ameliorative way, display device includes processing unit, couples the gravity detecting unit and fan unit of processing unit the present invention.Processing unit prestores standard movement variable quantity；Gravity detecting unit is to detect the actual motion variable quantity of display device and send actual motion variable quantity to processing unit, and when actual motion variable quantity is more than standard movement variable quantity, processing unit judges that display device is in resonance state；Wherein, when display device is in resonance state, if current picture is tableaux, processing unit adjusts the rotating speed of fan unit to avoid environmental frequencies；If current picture is dynamic menu, the rotating speed of adjustment fan unit may be selected to avoid the rotating speed of environmental frequencies or the uncomfortable whole fan unit of selection in processing unit.After the display device of the present invention resonates, it can choose whether to carry out resonance improvement according to the state of current picture, without carrying out resonance improvement, the space bigger of selection after display device resonates.
Description
Technical field
The present invention relates to a kind of display device and its resonance ameliorative way more particularly to a kind of display dresses improving resonance
It sets and its corresponding resonance ameliorative way.
Background technology
Heat dissipation problem is always a big difficulty in projector.The heat of projector is mainly derived from optical projection system part
Imaging system, the power supply of projector and projection bulb's (light source), the heat that this three parts is gathered together be it is sizable,
If these heats are arranged rapidly from projector not in time, these waste heats will to generate very inside machine
High temperature, in the case of a high temperature, the working efficiency of projector will will be low, and if working long hours down, projector
Service life can also greatly shorten.
Currently, projector uses fan group, fixes a wind speed and carry out core (light source, imaging system to projector
Deng) and the main heating sources such as power supply radiate.But under fixed wind friction velocity, the board frequency of projector may be with environment
Frequency is identical and resonates, and the shake of projected picture is caused, to influence the display effect of projector.
Invention content
For the covibration for improving above-mentioned, the present invention provides a kind of display device.
Above-mentioned display device includes：
Processing unit prestores standard movement variable quantity；
Gravity detecting unit couples the processing unit, and the gravity detecting unit is detecting the practical fortune of the display device
Dynamic variable quantity simultaneously sends the actual motion variable quantity to the processing unit, when the actual motion variable quantity becomes more than the standard movement
Change amount, the processing unit judge that the display device is in resonance state；And
Fan unit couples the processing unit；
Wherein, when the display device is in the resonance state, if the current picture is tableaux, the processing unit
The rotating speed of the fan unit is adjusted to avoid environmental frequencies；If the current picture is dynamic menu, which may be selected
It adjusts the rotating speed of the fan unit and does not adjust the rotating speed of the fan unit to avoid environmental frequencies or selection.
As optional technical solution, which prestores standard message output valve, when the processing unit selects
When adjusting the rotating speed of the fan unit, if the corresponding practical message output valve of the current picture is more than the standard message output valve,
Then the processing unit increases the rotating speed of the fan unit；If the corresponding practical message output valve of the current picture is not more than the standard
Message output valve, then the processing unit reduce the rotating speed of the fan unit.
As optional technical solution, when the display device will appear overheat after the rotating speed for adjusting the fan unit,
If the current picture is dynamic menu, which does not adjust the rotating speed of the fan unit；If the current picture is static state
Picture reduces the brightness of the optical unit of the display device while then the processing unit adjusts the rotating speed of the fan unit.
As optional technical solution, which is projector.
The present invention also provides a kind of resonance ameliorative ways, show for improving the resonance caused by the fan unit of display device
As the resonance ameliorative way includes：
Step S1：Detect whether the display device is in resonance state, if so, entering step S2；If it is not,
Then repeat step S1；
Step S2：The picture state of the display device current picture is detected, if the current picture is tableaux,
Then enter step S3；If the current picture is dynamic menu, enters step S3 or enter step S4；
Step S3：The rotating speed of the fan unit is adjusted to avoid environmental frequencies；
Step S4：The rotating speed of the fan unit is not adjusted.
As optional technical solution, in step S2, if the current picture is tableaux and estimates display dress
Setting can be in an overheated state after the rotating speed for adjusting the fan unit, then the rotating speed of the fan unit is adjusted in step S3
The brightness of the optical unit of the display device is reduced simultaneously；In step S2, if the current picture is dynamic menu and estimates
The display device can be in an overheated state after the rotating speed for adjusting the fan unit, then enters step S4；In step S2, if
The current picture be dynamic menu and estimate the display device adjust the fan unit rotating speed after be not at superheat state,
Then enter step S3 or step S4.
As optional technical solution, in step S3, if the corresponding practical message output valve of the current picture is more than
Standard message output valve, then increase the rotating speed of the fan unit；If the corresponding practical message output valve of the current picture is not more than
The standard message output valve, then reduce the rotating speed of the fan unit.
As optional technical solution, which further includes gravity detecting unit, and in step S1, which detects
The actual motion variable quantity that unit detects the display device is surveyed, when the actual motion variable quantity is more than the standard movement variable quantity
When, then judge that the display device is in resonance state.
As optional technical solution, in step S2, the corresponding picture histogram of the display device current picture is detected
Figure is to judge the picture state of the current picture, if the histogram amplitude of variation is more than the first amplitude of variation, judges that this is current
Picture is dynamic menu；If the histogram amplitude of variation is less than first amplitude of variation, judge that the current picture is drawn for static state
Face.
As optional technical solution, which is projector.
Compared with the prior art, after display device of the invention resonates, processing unit can be according to the shape of current picture
State chooses whether to carry out resonance improvement, and without carrying out resonance improvement after display device resonates, the space of selection is more
Greatly.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Description of the drawings
Fig. 1 is the schematic diagram of display device of the present invention；
Fig. 2 is the flow chart of present invention resonance ameliorative way.
Specific implementation mode
Fig. 1 is the schematic diagram of display device of the present invention.Fig. 1 is please referred to, display device 100 includes processing unit 110, coupling
The gravity detecting unit 120 and fan unit 130 of processing unit 110.Display device 100 is, for example, projector.Processing unit 110
Standard movement variable quantity is prestored, gravity detecting unit 120 is concurrent to the actual motion variable quantity for detecting display device 100
Send actual motion variable quantity to processing unit 110, when actual motion variable quantity is more than standard movement variable quantity, processing unit 110
Judge that display device 100 is in resonance state.
When display device 100 is in resonance state, i.e., display device 100 is in the state of float, if current draw
Face is tableaux, then the rotating speed that processing unit 110 adjusts fan unit 130 is drawn with avoiding environmental frequencies because viewing is static
When face, human eye is more sensitive for the shake of picture, so when current picture is tableaux, processing unit 110 must be adjusted
The rotating speed of whole fan unit 130, to avoid environmental frequencies, to destroy the condition that display device 100 resonates；If current draw
Face is dynamic menu, then it is uncomfortable to avoid environmental frequencies or selection that the rotating speed of adjustment fan unit 130 may be selected in processing unit 110
The rotating speed (not destroying resonance condition) of whole fan unit 130, because when viewing dynamic menu, human eye is not for the shake of picture
Very sensitive, i.e., after picture is shaken, human eye will not perceive this shake, so when current picture is dynamic menu, place
Reason unit 110 can select the rotating speed of adjustment or uncomfortable whole fan unit 130.For example, if assessment reduces fan unit 130
When rotating speed rear indicator 100 overheats or when display is of less demanding, then it is single that uncomfortable rectification campaign fan may be selected in processing unit 110
The rotating speed of member 130；For another example during the adjustment of rotational speed of fan unit 130 superheating phenomenon will not occur for display device 100 simultaneously
And when showing more demanding, then the rotating speed of the optional adjustment fan unit 130 of processing unit 110 is imitated with reaching preferably display
Fruit, i.e., under dynamic menu, the rotating speed end of adjustment or uncomfortable whole fan unit 130 depends on the circumstances.
That is, after display device 100 resonates, if current picture is tableaux, fan unit 130 must be adjusted
Rotating speed to destroy the condition of resonance, if but current picture be dynamic menu, selectively adjustment or uncomfortable whole fan unit 130
Rotating speed, in this way, processing unit 110 can according to the state of current picture come choose whether carry out 130 rotating speed of fan unit tune
Whole, the space of selection is larger, without carrying out resonance improvement after display device 100 resonates.
The picture state of current picture can be judged by the corresponding picture histogram of current picture, in processing unit 110
The first amplitude of variation and the corresponding histogram amplitude of variation of current picture are prestored, is become if histogram amplitude of variation is more than first
Change amplitude, then processing unit 110 judge current picture for dynamic menu；If histogram amplitude of variation is less than the first amplitude of variation,
Then processing unit 110 judges current picture for tableaux.
In addition, in the present embodiment, processing unit 110 prestores standard message output valve, when processing unit 110 selects
When adjusting the rotating speed of fan unit, if the corresponding practical message output valve (such as message output of loudspeaker) of current picture is more than mark
Quasi- message output valve, then processing unit 110 increase the rotating speed of fan unit 130, because when practical message output valve is larger, wind
Fan unit 130 accelerates the noise generated that can be covered by message output, so the acceleration of fan unit 130 can destroy under this situation
Heat dissipation is taken into account on the basis of resonance condition；If the corresponding practical message output valve of current picture is not more than standard message output valve,
Then processing unit 110 reduces the rotating speed of fan unit 130, because practical message output valve is smaller at this time, fan unit 130 generates
Noise may be audible, so cannot using accelerate by the way of, need to carry out environmental frequencies by the way of reduction of speed instead
Evade.In this way, processing unit 110 can select corresponding adjustment of rotational speed side according to the corresponding practical message output of current picture
Formula changes the board frequency of display device 100 to avoid environmental frequencies, so as to improve the float caused by resonance.
The corresponding practical message output valve of current picture can be stored in advance in processing unit 110, and processing unit 110 can be straight
It connects and calls and be compared；Alternatively, display device 100 further includes coupling the message detecting unit (not shown) of processing unit 110,
Message detecting unit detects the corresponding practical message output valve of current picture, and is transferred to 110 unit for processing of processing unit
110 are compared.
During adjusting 130 rotating speed of fan unit, display device 100 is likely to occur superheating phenomenon, is shown when estimating
When device 100 can be in overheat after the rotating speed for adjusting the fan unit, for example, the rotating speed after adjustment is less than display device 100
The minimum speed of superheating phenomenon does not occur, then display device 100 can be in an overheated state, if current picture is dynamic menu,
Processing unit 110 selects the rotating speed of uncomfortable whole fan unit 130, that is, maintains the current rotating speed of fan unit 130；If current picture
For tableaux, then the optics list of display device 100 is reduced while the selection of processing unit 110 adjusts the rotating speed of the fan unit
The brightness of member.
The present invention also provides a kind of resonance ameliorative ways 200, and the fan unit 130 for improving display device 100 is drawn
The covibration risen, display device 100 are, for example, projector, and Fig. 2 is the flow chart of present invention resonance ameliorative way, please refers to figure
2。
Resonance ameliorative way 200 include：
Step S1：Detect whether display device 100 is in resonance state, if so, entering step S2；If it is not, then repeating
Step S1；
Step S2：The picture state of 100 current picture of display device is detected, if current picture is tableaux, is entered
Step S3；If current picture is dynamic menu, enters step S3 or enter step S4；
Step S3：The rotating speed of fan unit 130 is adjusted to avoid environmental frequencies；
Step S4：The rotating speed of uncomfortable whole fan unit 130.
In practical application, in above-mentioned step S2, if current picture is tableaux, fan unit 130 is adjusted
Rotating speed to avoid environmental frequencies because when viewing tableaux, human eye is more sensitive for the shake of picture, so current draw
When face is tableaux, processing unit 110 must adjust the rotating speed of fan unit 130, to avoid environmental frequencies, to destroy
The condition that display device 100 resonates, but after adjusting the rotating speed of fan unit 130, for example, the rotating speed after adjustment is less than aobvious
The minimum speed of superheating phenomenon does not occur for showing device 100, then display device 100 may be in superheat state, so needing to increase
Add corresponding measure avoided while avoiding environmental frequencies there is a phenomenon where overheating, such as is reduced while adjusting rotating speed
The heat that main heating source (such as optical unit) distributes itself, that is to say, that if current picture is tableaux, it is also necessary to same
When estimate the superheat state of display device 100, to prevent the superheating phenomenon being likely to occur, even current picture be tableaux and
Estimating display device 100 can be in an overheated state after the rotating speed of adjustment fan unit 130, then adjusts fan list in step s3
The brightness of the optical unit of display device 100 is reduced while the rotating speed of member 130.
In above-mentioned step S2, if current picture is dynamic menu, enters step S3 or enter step S4, because
Under dynamic menu, human eye is not very high for the susceptibility of resonance, belong to it is adjustable or can unregulated scope, if adjusted
It after turn over speed, estimates display device 100 and will appear superheating phenomenon, then It is not necessary to carry out resonance improvement, even current picture is
Dynamic menu and estimate display device 100 adjustment fan unit 130 rotating speed after can it is in an overheated state, then enter step
S4；Certainly, in above-mentioned step S2, if after adjustment rotating speed, it is not in superheating phenomenon to estimate after display device 100, then
Whether end carries out resonance improvement depending on display demand depending on, and even current picture for dynamic menu and is estimated display device 100 and adjusted
It is not at superheat state after the rotating speed of whole fan unit 130, then enters step S3 or step S4.
In above-mentioned step S3, the adjustment for the rotating speed of fan unit 130, specifically according to the practical sound of picture
Output valve is interrogated, to determine to tune up rotating speed, or turns rotating speed down.Specifically, if the corresponding practical message output valve of current picture is big
In standard message output valve, then increase the rotating speed of fan unit 130；If the corresponding practical message output valve of current picture is not more than
The standard message output valve, then reduce the rotating speed of fan unit 130.Since when practical message output valve is larger, fan unit
130, which accelerate the noise generated that can be exported by message, covers, so fan unit 130 accelerates that resonant bars can be being destroyed under this situation
Heat dissipation is taken into account on the basis of part；If the corresponding practical message output valve of current picture is not more than standard message output valve, handle
Unit 110 reduces the rotating speed of fan unit 130, because practical message output valve is smaller at this time, the noise of the generation of fan unit 130
It may be audible, so cannot instead need to carry out evading for environmental frequencies by the way of reduction of speed by the way of accelerating.
In this way, processing unit 110 can change according to current picture corresponding practical message output to select corresponding adjustment of rotational speed mode
Become the board frequency of display device 100 to avoid environmental frequencies, so as to improve the float caused by resonance.
In above-mentioned step S1, display device 100 detects the reality of display device 100 by gravity detecting unit 120
Border movement change amount then judges that display device 100 is in resonance when actual motion variable quantity is more than standard movement variable quantity
State.
In above-mentioned step S2, the corresponding picture histogram of detecting 100 current picture of display device is to judge currently to draw
The picture state in face judges current picture for dynamic menu if histogram amplitude of variation is more than the first amplitude of variation；If histogram
Figure amplitude of variation is less than the first amplitude of variation, then judges current picture for tableaux.
In conclusion after the display device of the present invention resonates, processing unit can be selected according to the state of current picture
It selects and whether carries out resonance improvement, without carrying out resonance improvement, the space bigger of selection after display device resonates.Into one
Step, processing unit can show to select corresponding adjustment of rotational speed mode to change according to the corresponding practical message output of current picture
The board frequency of device is to avoid environmental frequencies, and under the premise of taking into account display device performance, improvement is drawn caused by resonance
It shakes in face.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding change and deformations, but these corresponding change and deformations can be made according to the present invention by knowing those skilled in the art
The protection domain of appended claims of the invention should all be belonged to.
Claims (10)
1. a kind of display device, which is characterized in that the display device includes：
Processing unit prestores standard movement variable quantity；
Gravity detecting unit couples the processing unit, which becomes to the actual motion for detecting the display device
Change amount simultaneously sends the actual motion variable quantity to the processing unit, when the actual motion variable quantity changes more than the standard movement
Amount, the processing unit judge that the display device is in resonance state；And
Fan unit couples the processing unit；
Wherein, when the display device is in the resonance state, if current picture is tableaux, processing unit adjustment should
The rotating speed of fan unit is to avoid environmental frequencies；If the current picture is dynamic menu, which may be selected adjustment should
The rotating speed of fan unit does not adjust the rotating speed of the fan unit to avoid environmental frequencies or selection.
2. display device as described in claim 1, which is characterized in that the processing unit prestores standard message output valve,
When the processing unit selects to adjust the rotating speed of the fan unit, it is somebody's turn to do if the corresponding practical message output valve of the current picture is more than
Standard message output valve, then the processing unit increase the rotating speed of the fan unit；If the corresponding practical message of the current picture is defeated
Go out value and be not more than the standard message output valve, then the processing unit reduces the rotating speed of the fan unit.
3. display device as described in claim 1, which is characterized in that when the display device is in the rotating speed for adjusting the fan unit
After when will appear overheat, if the current picture is dynamic menu, which does not adjust the rotating speed of the fan unit；If should
Current picture is tableaux, then the optics of the display device is reduced while the processing unit adjusts the rotating speed of the fan unit
The brightness of unit.
4. display device as described in claim 1, which is characterized in that the display device is projector.
5. a kind of resonance ameliorative way, for improving the covibration caused by the fan unit of display device, which is characterized in that
The resonance ameliorative way includes：
Step S1：Detect whether the display device is in resonance state, if so, entering step S2；If it is not, then repeating the step
S1；
Step S2：The picture state of the display device current picture is detected, if the current picture is tableaux, is entered step
S3；If the current picture is dynamic menu, enters step S3 or enter step S4；
Step S3：The rotating speed of the fan unit is adjusted to avoid environmental frequencies；
Step S4：The rotating speed of the fan unit is not adjusted.
6. resonance ameliorative way as claimed in claim 5, which is characterized in that in step S2, if the current picture is quiet
State picture and estimate the display device adjust the fan unit rotating speed after can it is in an overheated state, then adjusted in step S3
The brightness of the optical unit of the display device is reduced while the rotating speed of the whole fan unit；In step S2, if this is current
Picture be dynamic menu and estimate the display device adjust the fan unit rotating speed after can it is in an overheated state, then enter step
Rapid S4；In step S2, if the current picture is dynamic menu and estimates the display device in turn for adjusting the fan unit
It is not at superheat state after speed, then enters step S3 or step S4.
7. resonance ameliorative way as claimed in claim 5, which is characterized in that in step S3, if the current picture corresponds to
Practical message output valve be more than standard message output valve, then increase the rotating speed of the fan unit；If the current picture is corresponding
Practical message output valve is not more than the standard message output valve, then reduces the rotating speed of the fan unit.
8. resonance ameliorative way as claimed in claim 5, which is characterized in that the display device further includes gravity detecting unit,
In step S1, which detects the actual motion variable quantity of the display device, when the actual motion variable quantity
When more than standard movement variable quantity, then judge that the display device is in resonance state.
9. resonance ameliorative way as claimed in claim 5, which is characterized in that in step S2, detect the display device and work as
The corresponding picture histogram of preceding picture is become with judging the picture state of the current picture if the histogram amplitude of variation is more than first
Change amplitude then judges the current picture for dynamic menu；If the histogram amplitude of variation is less than first amplitude of variation, judge
The current picture is tableaux.
10. resonance ameliorative way as claimed in claim 5, which is characterized in that the display device is projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611015641.XA CN106647122B (en) | 2016-11-18 | 2016-11-18 | A kind of display device and its ameliorative way that resonates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611015641.XA CN106647122B (en) | 2016-11-18 | 2016-11-18 | A kind of display device and its ameliorative way that resonates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106647122A CN106647122A (en) | 2017-05-10 |
| CN106647122B true CN106647122B (en) | 2018-07-31 |
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| CN201611015641.XA Expired - Fee Related CN106647122B (en) | 2016-11-18 | 2016-11-18 | A kind of display device and its ameliorative way that resonates |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587454A (en) * | 2008-05-19 | 2009-11-25 | 联想(北京)有限公司 | Computer, computer vibration-reducing method and computer heat dissipation module |
| CN102192175A (en) * | 2010-03-01 | 2011-09-21 | 纬创资通股份有限公司 | Fan control system and method for modulating rotation speed of fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4215790B2 (en) * | 2006-08-29 | 2009-01-28 | Ｎｅｃディスプレイソリューションズ株式会社 | Silencer, electronic device, and method for controlling silencing characteristics |
-
2016
- 2016-11-18 CN CN201611015641.XA patent/CN106647122B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587454A (en) * | 2008-05-19 | 2009-11-25 | 联想(北京)有限公司 | Computer, computer vibration-reducing method and computer heat dissipation module |
| CN102192175A (en) * | 2010-03-01 | 2011-09-21 | 纬创资通股份有限公司 | Fan control system and method for modulating rotation speed of fan |
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| Publication number | Publication date |
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| CN106647122A (en) | 2017-05-10 |
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