CN108732807A - A kind of structure and method that liquid crystal display heats and cools down automatically - Google Patents
A kind of structure and method that liquid crystal display heats and cools down automatically Download PDFInfo
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- CN108732807A CN108732807A CN201810585336.7A CN201810585336A CN108732807A CN 108732807 A CN108732807 A CN 108732807A CN 201810585336 A CN201810585336 A CN 201810585336A CN 108732807 A CN108732807 A CN 108732807A
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- temperature
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- crystal display
- oxide
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
- G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses structures and method that a kind of liquid crystal display heats and cools down automatically, including temperature control modules, for sending out temperature control signals；Two groups of metal-oxide-semiconductors, are connected to above-mentioned temperature control modules；Heating film, for heating and being connected to one group of metal-oxide-semiconductor；Fan, for radiating and being connected to another set metal-oxide-semiconductor.The structure and method that the liquid crystal display heats and cools down automatically control fan and heating film compared with prior art, by temperature controller, heat and cool down to liquid crystal display automatically, improve adaptability of the liquid crystal display to temperature, it is highly practical, it is applied widely, convenient for promoting the use of.
Description
Technical field
The present invention relates to field of computer technology, and especially specifically a kind of highly practical, liquid crystal display heats automatically
With the structure and method of cooling.
Background technology
The operating temperature of usual liquid crystal display is typically 0 DEG C -40 DEG C or so, and storage temperature is -20 DEG C or so, if liquid crystal
Display is operated in special low temperature or hot environment, and display is likely to occur " solidification " phenomenon, cisco unity malfunction.
Thus, how liquid crystal display is controlled into trip temperature and temperature controller knot occurs in the prior art as a difficult point
Structure, but this temperature controller structure can not be applied directly on liquid crystal display, using being limited, be based on this, present invention design
Go out a kind of temperature control modules, on the basis of the temperature control modules, coordinates heating film and fan, realize temperature detection and control
System.
Invention content
The technical assignment of the present invention is to be directed to the above shortcoming, provides a kind of highly practical, liquid crystal display and adds automatically
The structure and method of heat and cooling.
A kind of structure that liquid crystal display heats and cools down automatically, including,
Temperature control modules, for sending out temperature control signals；
Two groups of metal-oxide-semiconductors, are connected to above-mentioned temperature control modules；
Heating film, for heating and being connected to one group of metal-oxide-semiconductor；
Fan, for radiating and being connected to another set metal-oxide-semiconductor.
The temperature control modules are made of IC chip, are configured with eight pins, specially：
VREF pins, reference voltage pin realize the setting of maximum temperature, minimum temperature by external electric resistance partial pressure；
VT1 pins, for configuring minimum input voltage；
VT2 pins, for configuring maximum input voltage；
GND pins, for being grounded；
VTEMP pins, for exporting analog voltage, which is VT1 pins, VT2 pins determine the electricity in voltage range
Pressure；
OUT1 pins, output digit signals connect heating film by one group of metal-oxide-semiconductor；
OUT2 pins, output digit signals connect fan by another set metal-oxide-semiconductor；
V+ pins, positive polarity.
The external electric resistance partial pressure of VREF pins refers to：
VREF pins are divided into two branches by resistance R1, connect VT2 pins all the way, are again broken down into two through resistance R2 connections all the way
Branch：It is connected to VT1 pins all the way, another way is grounded after resistance R3.
Voltage value=6.20mv/ °C of * T+395mv that the VT1 pins, VT2 pins determine, and between resistance R1, R2, R3
Meet：
VT1=1.25V*[R1/（R1+R2+R3）]；
VT2=1.25V*[（R1+R2）/（R1+R2+R3）].
A kind of method that liquid crystal display heats and cools down automatically, is based on above structure, realization process is：
One, a temperature control modules are designed first, for sending out temperature control signals；
Two, the temperature control modules are connected to heating film and fan by metal-oxide-semiconductor；
Three, minimum temperature and maximum temperature are set, temperature sensor measurement actual temperature, temperature sensor configuration are then passed through
In temperature control modules；
Four, when actual temperature is less than minimum temperature, metal-oxide-semiconductor is controlled by temperature controller, realizes that heating film is opened, until temperature
Degree rises to minimum temperature or more；
Five, when actual temperature is higher than maximum temperature, metal-oxide-semiconductor is controlled by temperature controller, realizes that fan is opened, until temperature
It is down to maximum temperature or less.
In the step 4, actual temperature T, minimum temperature T1, maximum temperature T2, T1<T2-5 works as temperature sensing
Device measures T<When T1-5, heating film is started to work；In step 5, as temperature sensor measurement T>When T2, fan is started to work.
In step 4, work as T<When T1-5, OUT1 and OUT2 export high level, and heating film is started to work, corresponding, when
T1<T<When T2-5, OUT1 exports low level, and OUT2 exports high level；Work as T>When T2, OUT1 and OUT2 export low level, fan
It starts to work.
A kind of liquid crystal display of the present invention heats automatically and the structure and method of cooling, has the following advantages：
A kind of liquid crystal display of the present invention heats automatically and the structure and method of cooling, when liquid crystal display actual temperature is less than setting
When low temperature, heating film automatically begins to work, when the high temperature for reaching setting is then stopped；When temperature is higher than setting high temperature, wind
Fan starts to rotate, and when the high temperature for reaching setting is then stopped, circuit production is simply easily realized, and is controlled by temperature controller
Fan and heating film heat and cool down to liquid crystal display automatically, improve adaptability of the liquid crystal display to temperature, highly practical, fit
With in extensive range, convenient for promoting the use of.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Attached drawing 1 is the realization block diagram of the present invention.
Attached drawing 2 is the realization circuit diagram of the present invention.
Specific implementation mode
In order to make those skilled in the art more fully understand the solution of the present invention, With reference to embodiment to this
Invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Fig. 1, the structure that a kind of liquid crystal display heats and cools down automatically, including,
Temperature control modules, for sending out temperature control signals；
Two groups of metal-oxide-semiconductors, are connected to above-mentioned temperature control modules；
Heating film, for heating and being connected to one group of metal-oxide-semiconductor；
Fan, for radiating and being connected to another set metal-oxide-semiconductor.
The temperature control modules are made of IC chip, are configured with eight pins, specially：
VREF pins, reference voltage pin realize the setting of maximum temperature, minimum temperature by external electric resistance partial pressure；
VT1 pins, for configuring minimum input voltage；
VT2 pins, for configuring maximum input voltage；
GND pins, for being grounded；
VTEMP pins, for exporting analog voltage, which is VT1 pins, VT2 pins determine the electricity in voltage range
Pressure；
OUT1 pins, output digit signals connect heating film by one group of metal-oxide-semiconductor；
OUT2 pins, output digit signals connect fan by another set metal-oxide-semiconductor；
V+ pins, positive polarity.
And non-essential resistance divider is utilized to set two temperature control points of upper and lower limit, temperature control error is less than ± 2 DEG C.
The external electric resistance partial pressure of VREF pins refers to：
VREF pins are divided into two branches by resistance R1, connect VT2 pins all the way, are again broken down into two through resistance R2 connections all the way
Branch：It is connected to VT1 pins all the way, another way is grounded after resistance R3.
Voltage value=6.20mv/ °C of * T+395mv that the VT1 pins, VT2 pins determine, and between resistance R1, R2, R3
Meet：
VT1=1.25V*[R1/（R1+R2+R3）]；
VT2=1.25V*[（R1+R2）/（R1+R2+R3）].
Such as R1+R2+R3=27K Ω, at this time R1=（Vt1/1.25）*27KΩ；R2=（Vt2/1.25）*27KΩ)-R1；R3=
27KΩ-R1-R2。
A kind of method that liquid crystal display heats and cools down automatically, is based on above structure, realization process is：
One, a temperature control modules are designed first, for sending out temperature control signals；
Two, the temperature control modules are connected to heating film and fan by metal-oxide-semiconductor；
Three, minimum temperature and maximum temperature are set, temperature sensor measurement actual temperature, temperature sensor configuration are then passed through
In temperature control modules；
Four, when actual temperature is less than minimum temperature, metal-oxide-semiconductor is controlled by temperature controller, realizes that heating film is opened, until temperature
Degree rises to minimum temperature or more；
Five, when actual temperature is higher than maximum temperature, metal-oxide-semiconductor is controlled by temperature controller, realizes that fan is opened, until temperature
It is down to maximum temperature or less.
In the step 4, actual temperature T, minimum temperature T1, maximum temperature T2, T1<T2-5 works as temperature sensing
Device measures T<When T1-5, heating film is started to work；In step 5, as temperature sensor measurement T>When T2, fan is started to work.
In step 4, work as T<When T1-5, OUT1 and OUT2 export high level, and heating film is started to work, corresponding, when
T1<T<When T2-5, OUT1 exports low level, and OUT2 exports high level；Work as T>When T2, OUT1 and OUT2 export low level, fan
It starts to work.
Above-mentioned specific implementation mode is only the specific case of the present invention, and scope of patent protection of the invention includes but not limited to
Above-mentioned specific implementation mode, any liquid crystal display for meeting the present invention heats automatically and the right of the structure of cooling and method is wanted
The appropriate change or replacement that ask book and any technical field those of ordinary skill does it, should all fall into the present invention
Scope of patent protection.
Claims (8)
1. a kind of liquid crystal display heats automatically and the structure of cooling, which is characterized in that including,
Temperature control modules, for sending out temperature control signals；
Two groups of metal-oxide-semiconductors, are connected to above-mentioned temperature control modules；
Heating film, for heating and being connected to one group of metal-oxide-semiconductor；
Fan, for radiating and being connected to another set metal-oxide-semiconductor.
2. a kind of liquid crystal display according to claim 1 heats automatically and the structure of cooling, which is characterized in that the temperature
Degree control module is made of IC chip, is configured with eight pins, specially：
VREF pins, reference voltage pin realize the setting of maximum temperature, minimum temperature by external electric resistance partial pressure；
VT1 pins, for configuring minimum input voltage；
VT2 pins, for configuring maximum input voltage；
GND pins, for being grounded；
VTEMP pins, for exporting analog voltage, which is VT1 pins, VT2 pins determine the electricity in voltage range
Pressure；
OUT1 pins, output digit signals connect heating film by one group of metal-oxide-semiconductor；
OUT2 pins, output digit signals connect fan by another set metal-oxide-semiconductor；
V+ pins, positive polarity.
3. a kind of liquid crystal display according to claim 2 heats automatically and the structure of cooling, which is characterized in that described
The external electric resistance partial pressure of VREF pins refers to：
VREF pins are divided into two branches by resistance R1, connect VT2 pins all the way, are again broken down into two through resistance R2 connections all the way
Branch：It is connected to VT1 pins all the way, another way is grounded after resistance R3.
4. a kind of liquid crystal display according to claim 3 heats automatically and the structure of cooling, which is characterized in that described
Voltage value=6.20mv/ °C of * T+395mv that VT1 pins, VT2 pins determine.
5. a kind of liquid crystal display according to claim 4 heats automatically and the structure of cooling, which is characterized in that the electricity
Meet between resistance R1, R2, R3：
VT1=1.25V*[R1/（R1+R2+R3）]；
VT2=1.25V*[（R1+R2）/（R1+R2+R3）].
6. a kind of liquid crystal display heats automatically and the method for cooling, which is characterized in that be based on above structure, realize process
For：
One, a temperature control modules are designed first, for sending out temperature control signals；
Two, the temperature control modules are connected to heating film and fan by metal-oxide-semiconductor；
Three, minimum temperature and maximum temperature are set, temperature sensor measurement actual temperature, temperature sensor configuration are then passed through
In temperature control modules；
Four, when actual temperature is less than minimum temperature, metal-oxide-semiconductor is controlled by temperature controller, realizes that heating film is opened, until temperature
Degree rises to minimum temperature or more；
Five, when actual temperature is higher than maximum temperature, metal-oxide-semiconductor is controlled by temperature controller, realizes that fan is opened, until temperature
It is down to maximum temperature or less.
7. a kind of liquid crystal display according to claim 6 heats automatically and the method for cooling, which is characterized in that the step
In rapid four, actual temperature T, minimum temperature T1, maximum temperature T2, T1<T2-5, as temperature sensor measurement T<T1-5
When, heating film is started to work；In step 5, as temperature sensor measurement T>When T2, fan is started to work.
8. a kind of liquid crystal display according to claim 7 heats automatically and the method for cooling, which is characterized in that in step
In four, work as T<When T1-5, OUT1 and OUT2 export high level, and heating film is started to work, corresponding, works as T1<T<When T2-5,
OUT1 exports low level, and OUT2 exports high level；Work as T>When T2, OUT1 and OUT2 export low level, and fan is started to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810585336.7A CN108732807A (en) | 2018-06-08 | 2018-06-08 | A kind of structure and method that liquid crystal display heats and cools down automatically |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810585336.7A CN108732807A (en) | 2018-06-08 | 2018-06-08 | A kind of structure and method that liquid crystal display heats and cools down automatically |
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| CN108732807A true CN108732807A (en) | 2018-11-02 |
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| CN201810585336.7A Pending CN108732807A (en) | 2018-06-08 | 2018-06-08 | A kind of structure and method that liquid crystal display heats and cools down automatically |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284769A (en) * | 2020-12-30 | 2021-01-29 | 中汽研汽车检验中心(宁波)有限公司 | Dynamometer machine working condition driving auxiliary system |
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| CN102376205A (en) * | 2010-08-19 | 2012-03-14 | 夏普株式会社 | Display apparatus |
| CN104331101A (en) * | 2013-07-23 | 2015-02-04 | 西安大盛消防检测有限公司 | Automatic heat-dissipating system for LED information display screen |
| CN204408383U (en) * | 2015-03-13 | 2015-06-17 | 山东超越数控电子有限公司 | A kind of 10,000,000,000 switches that can heat |
| US20150237761A1 (en) * | 2008-03-26 | 2015-08-20 | Manufacturing Resources International, Inc. | Heat Exchanger for Back to Back Electronic Displays |
| CN106094304A (en) * | 2016-06-18 | 2016-11-09 | 青岛鼎信通讯股份有限公司 | A kind of liquid crystal display screen automatic heating control method under low temperature environment |
-
2018
- 2018-06-08 CN CN201810585336.7A patent/CN108732807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150237761A1 (en) * | 2008-03-26 | 2015-08-20 | Manufacturing Resources International, Inc. | Heat Exchanger for Back to Back Electronic Displays |
| CN102376205A (en) * | 2010-08-19 | 2012-03-14 | 夏普株式会社 | Display apparatus |
| CN104331101A (en) * | 2013-07-23 | 2015-02-04 | 西安大盛消防检测有限公司 | Automatic heat-dissipating system for LED information display screen |
| CN204408383U (en) * | 2015-03-13 | 2015-06-17 | 山东超越数控电子有限公司 | A kind of 10,000,000,000 switches that can heat |
| CN106094304A (en) * | 2016-06-18 | 2016-11-09 | 青岛鼎信通讯股份有限公司 | A kind of liquid crystal display screen automatic heating control method under low temperature environment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112284769A (en) * | 2020-12-30 | 2021-01-29 | 中汽研汽车检验中心(宁波)有限公司 | Dynamometer machine working condition driving auxiliary system |
| CN112284769B (en) * | 2020-12-30 | 2021-10-26 | 中汽研汽车检验中心(宁波)有限公司 | Dynamometer machine working condition driving auxiliary system |
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Application publication date: 20181102 |