CN107045219A - A kind of LCD display system suitable for ultra-wide temperature range - Google Patents
A kind of LCD display system suitable for ultra-wide temperature range Download PDFInfo
- Publication number
- CN107045219A CN107045219A CN201710412209.2A CN201710412209A CN107045219A CN 107045219 A CN107045219 A CN 107045219A CN 201710412209 A CN201710412209 A CN 201710412209A CN 107045219 A CN107045219 A CN 107045219A
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- CN
- China
- Prior art keywords
- temperature
- lcd display
- tec
- temperature control
- control circuit
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Classifications
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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
Abstract
The present invention provides a kind of LCD display system suitable for ultra-wide temperature range, including LCD display, TEC temperature-constant plates and intelligent temperature control circuit, the TEC temperature-constant plates are arranged on below the LCD display, keep thermally contacting with LCD display, the TEC temperature-constant plates connection intelligent temperature control circuit simultaneously realizes Programmable Temperature control by intelligent temperature control circuit.Semiconductor cooler TEC is applied to LCD display field by the present invention, intelligent temperature control is carried out to TEC temperature-constant plates by intelligent temperature control circuit, the work temperature range of traditional LCD display can be significantly expanded, suitable for very hot or extremely cold working environment, simultaneously, the volume of TEC temperature-constant plates is extra small in the system, and power consumption and cost are all relatively low, is particularly suitable for application to wearing or hand-hold electronic equipments.
Description
Technical field
The present invention relates to LCD display technical field, more particularly to a kind of LCD display system suitable for ultra-wide temperature range
System.
Background technology
Liquid crystal display LCD is the display device of planar ultra-thin, be widely used in from last century the nineties TV,
In the electronic equipments such as computer, mobile phone.Because LCD is applied to the significant advantages such as small volume, lightweight, thickness of thin, low-power consumption, closely
Human-computer interaction interface is generally also used as using miniature LCD display in fast-developing wearing, handheld device over year.
The LCD display of standard, the temperature range of its work is between -20 DEG C~+70 DEG C, it is impossible to applied to extremely low or pole
High temperature environment, such as -60 DEG C~+85 DEG C ultra-wide temperature range environment.In face of above mentioned problem, traditional solution be by suitable for
The electronic equipment of LCD display is placed in the larger insulating box of volume, adapted to by the humidity control system in insulating box compared with
For harsh working environment, but traditional insulating box has that power consumption is high, volume is big, failure is more, cost, if using
In wearing or hand-hold electronic equipments, it will be difficult to embedded system.
The content of the invention
In order to solve the above problems, the present invention provides a kind of LCD display system suitable for ultra-wide temperature range, Neng Gouwei
LCD display creates stable working environment.
The technical solution adopted by the present invention is：A kind of LCD display system suitable for ultra-wide temperature range, including LCD are shown
Screen, TEC temperature-constant plates and intelligent temperature control circuit, the TEC temperature-constant plates are arranged on below the LCD display, are protected with LCD display
Thermo-contact is held, the TEC temperature-constant plates connection intelligent temperature control circuit simultaneously realizes Programmable Temperature control by intelligent temperature control circuit.
Preferably, the TEC temperature-constant plates are by the first potsherd scope of operation, TEC circuits, multiple TEC semiconductor pieces and second
The potsherd scope of operation is constituted, and the TEC circuits are printed in the first potsherd scope of operation, and the multiple TEC semiconductor pieces are set
On TEC circuits, the second potsherd scope of operation is arranged on multiple TEC semiconductor pieces.
Preferably, the intelligent temperature control circuit includes microcontroller, temperature-sensitive module and drive module, the temperature-sensitive mould
Block is used for the temperature for gathering environment temperature and TEC temperature-constant plates, the temperature value that the microcontroller is collected according to temperature-sensitive module
Drive the heating of TEC temperature-constant plates or cool.
Preferably, the LCD display is miniature LCD display.
Preferably, the LCD display is TN-LCD, STN-LCD, DSTN-LCD or TFT-LCD.
Compared with prior art, there is following technique effect in the present invention：
Semiconductor cooler TEC is applied to LCD display field by the present invention, and TEC temperature-constant plates are entered by intelligent temperature control circuit
The work temperature range of traditional LCD display, can be significantly expanded, it is adaptable to very hot or extremely cold working environment by row intelligent temperature control,
Meanwhile, the volume of TEC temperature-constant plates is extra small in the system, and power consumption and cost are all relatively low, and be particularly suitable for use in wearing and handheld electronic are set
It is standby.
Brief description of the drawings
Fig. 1 is structural representation Fig. 1 of LCD display system of the present invention；
Fig. 2 is structural representation Fig. 2 of LCD display system of the present invention；
Fig. 3 is the schematic diagram of intelligent temperature control circuit in LCD display system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Referring to Fig. 1, a kind of LCD display system suitable for ultra-wide temperature range, including LCD display, TEC temperature-constant plates and intelligence
Can temperature control circuit.Specifically, the LCD display can be TN-LCD, STN-LCD, DSTN-LCD or TFT-LCD, the TEC
Temperature-constant plate is arranged on below the LCD display, keeps thermally contacting with LCD display, the TEC temperature-constant plates connect intelligent temperature control
Circuit simultaneously realizes programmable temperature control by intelligent temperature control circuit.
Specifically, referring to Fig. 2, the TEC temperature-constant plates are semiconductor coolers, by the first potsherd scope of operation 21, TEC electricity
Road 22, the potsherd scope of operation 24 of multiple TEC semiconductor pieces 23 and second are constituted, and the TEC circuits 22 are printed on the first potsherd
In the scope of operation 21, intelligent temperature control circuit is connected to by wire, the multiple TEC semiconductor pieces 23 are arranged on TEC circuits 22,
TEC semiconductor pieces can be made of the N-type and the bismuth telluride of p-type of heavy doping or other TEC semi-conducting materials, and described second
The potsherd scope of operation 24 is arranged on multiple TEC semiconductor pieces 23, and potsherd can have good again as the existing insulating properties of the scope of operation
Good heat-conductive characteristic.Certainly, the structure and material of the TEC temperature-constant plates can also be designed as needed, not limited
In this.
Preferably, referring to Fig. 3, the intelligent temperature control circuit includes microcontroller, temperature-sensitive module and drive module, institute
State temperature-sensitive module and gathered by thermistor NTC the temperature of environment temperature and TEC temperature-constant plates, the microcontroller according to
The temperature value that temperature-sensitive module is collected drive TEC temperature-constant plates heating or cooling action, and then realize regulation LCD display work
Make the purpose of temperature.
In the course of the work, intelligent temperature control circuit is passed through electric current, electric current production by TEC circuits to multiple TEC semiconductor pieces
Opposite side is passed in the side of raw heat from TEC semiconductor pieces, and " heat " side and " cold " side are produced on TEC semiconductor pieces, realizes
TEC is heated and refrigerating function.Specifically, when intelligent temperature control circuit sense environment temperature it is extremely low in the case of then drive TEC permanent
Warm plate heats up in LCD display side, conversely, needing driving TEC temperature-constant plates if environment temperature is too high in LCD display side
Cooling, so as to create relatively stable working temperature environment for LCD display, makes LCD display in the dynamic humidity province of ultra-wide
Between, such as in -60 DEG C~+85 DEG C of environment temperature, it can continue to keep optimal working condition.
Preferably, the LCD display is miniature LCD display, applied in wearing or hand-hold electronic equipments.The system
The volume of middle TEC temperature-constant plates is extra small, and power consumption and cost are all relatively low, is particularly suitable for application in wearing or hand-hold electronic equipments.
In a word, preferred embodiments of the present invention are these are only, are not intended to limit the scope of the present invention, in the present invention
Scope within, the equivalents made of the present invention or modification should be included in the scope of the protection.
Claims (5)
1. a kind of LCD display system suitable for ultra-wide temperature range, it is characterised in that：Including LCD display, TEC temperature-constant plates and
Intelligent temperature control circuit, the TEC temperature-constant plates are arranged on below the LCD display, keep thermally contacting with LCD display, described
TEC temperature-constant plates connect intelligent temperature control circuit and realize Programmable Temperature control by intelligent temperature control circuit.
2. a kind of LCD display system suitable for ultra-wide temperature range according to claim 1, it is characterised in that：The TEC
Temperature-constant plate is made up of the first potsherd scope of operation, TEC circuits, multiple TEC semiconductor pieces and the second potsherd scope of operation, described
TEC circuits are printed in the first potsherd scope of operation, and the multiple TEC semiconductor pieces are arranged on TEC circuits, second pottery
The ceramics scope of operation is arranged on multiple TEC semiconductor pieces.
3. a kind of LCD display system suitable for ultra-wide temperature range according to claim 1, it is characterised in that：The intelligence
Can temperature control circuit include microcontroller, temperature-sensitive module and drive module, the temperature-sensitive module be used for gather environment temperature and
The temperature of TEC temperature-constant plates, the temperature value that the microcontroller is collected according to temperature-sensitive module drive the heating of TEC temperature-constant plates or
Cooling.
4. a kind of LCD display system suitable for ultra-wide temperature range as claimed in any of claims 1 to 3, it is special
Levy and be：The LCD display is miniature LCD display.
5. a kind of LCD display system suitable for ultra-wide temperature range as claimed in any of claims 1 to 3, it is special
Levy and be：The LCD display is TN-LCD, STN-LCD, DSTN-LCD or TFT-LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412209.2A CN107045219A (en) | 2017-06-05 | 2017-06-05 | A kind of LCD display system suitable for ultra-wide temperature range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710412209.2A CN107045219A (en) | 2017-06-05 | 2017-06-05 | A kind of LCD display system suitable for ultra-wide temperature range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107045219A true CN107045219A (en) | 2017-08-15 |
Family
ID=59546235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710412209.2A Pending CN107045219A (en) | 2017-06-05 | 2017-06-05 | A kind of LCD display system suitable for ultra-wide temperature range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107045219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581113A (en) * | 2018-06-11 | 2019-12-17 | Oppo广东移动通信有限公司 | central processing unit assembly and heat dissipation control method thereof, electronic equipment and mobile phone |
| WO2020082619A1 (en) * | 2018-10-25 | 2020-04-30 | 惠州市华星光电技术有限公司 | Display device and electronic apparatus |
-
2017
- 2017-06-05 CN CN201710412209.2A patent/CN107045219A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581113A (en) * | 2018-06-11 | 2019-12-17 | Oppo广东移动通信有限公司 | central processing unit assembly and heat dissipation control method thereof, electronic equipment and mobile phone |
| WO2020082619A1 (en) * | 2018-10-25 | 2020-04-30 | 惠州市华星光电技术有限公司 | Display device and electronic apparatus |
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