CN206773331U - 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
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- CN206773331U CN206773331U CN201720639691.9U CN201720639691U CN206773331U CN 206773331 U CN206773331 U CN 206773331U CN 201720639691 U CN201720639691 U CN 201720639691U CN 206773331 U CN206773331 U CN 206773331U
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- temperature
- lcd display
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- temperature control
- control circuit
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Abstract
The utility model 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 connect intelligent temperature control circuit and realize Programmable Temperature control by intelligent temperature control circuit.Semiconductor cooler TEC is applied to LCD display field by the utility model, 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
It the utility model is related to LCD display technical field, more particularly to a kind of LCD display 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, in light weight, thickness of thin, low-power consumption, closely
Miniature LCD display is generally also used over year in fast-developing wearing, handheld device as human-computer interaction interface.
The LCD display of standard, the temperature range of its work can not be applied to extremely low or pole between -20 DEG C~+70 DEG C
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, by the humidity control system in insulating box come adapt to compared with
For harsh working environment, but there is the problems such as power consumption is high, volume is big, failure is more, cost is high in traditional insulating box, if using
In wearing or hand-hold electronic equipments, it will be difficult to embedded system.
Utility model content
In order to solve the above problems, the utility model provides a kind of LCD display system suitable for ultra-wide temperature range, can
Stable working environment is created for LCD display.
The technical solution adopted in the utility model is：A kind of LCD display system suitable for ultra-wide temperature range, including LCD
Display screen, TEC temperature-constant plates and intelligent temperature control circuit, the TEC temperature-constant plates are arranged on below the LCD display, shown with LCD
Thermo-contact is held in screen protection, and the TEC temperature-constant plates connect intelligent temperature control circuit and realize Programmable Temperature control by intelligent temperature control circuit
System.
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 formed, 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 to gather environment temperature and the temperature of TEC temperature-constant plates, the temperature value that the microcontroller collects according to temperature-sensitive module
Drive the heating of TEC temperature-constant plates or cooling.
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 utility model：
Semiconductor cooler TEC is applied to LCD display field by the utility model, by intelligent temperature control circuit to TEC
Temperature-constant plate carries out intelligent temperature control, can be significantly expanded the work temperature range of traditional LCD display, suitable for very hot or extremely cold work
Make environment, meanwhile, 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 use in and dresses and hold
Electronic equipment.
Brief description of the drawings
Fig. 1 is structural representation Fig. 1 of the utility model LCD display system；
Fig. 2 is structural representation Fig. 2 of the utility model LCD display system；
Fig. 3 is the schematic diagram of intelligent temperature control circuit in the utility model LCD display system.
Embodiment
The utility model is further described below in conjunction with accompanying drawing.
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 form, 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 has good as the existing insulating properties and can 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, microcontroller, temperature-sensitive module and drive module, institute are included referring to Fig. 3, the intelligent temperature control circuit
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 collects drives the heating of TEC temperature-constant plates or cooling to act, and then realizes 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
Raw heat passes to opposite side from the side of 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 to drive 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, make LCD display in the dynamic humidity province of ultra-wide
Between, such as in -60 DEG C~+85 DEG C of environment temperature, 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, the utility model preferred embodiment is these are only, is not intended to limit the scope of protection of the utility model,
Within scope of the present utility model, the equivalents or modification made to the utility model should be included in this practicality newly
Within the protection domain of type.
Claims (5)
- A kind of 1. 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.
- A kind of 2. 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.
- A kind of 3. 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 to gathering environment temperature with 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 Sign is：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 Sign is：The LCD display is TN-LCD, STN-LCD, DSTN-LCD or TFT-LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720639691.9U CN206773331U (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 |
|---|---|---|---|
| CN201720639691.9U CN206773331U (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 |
|---|---|
| CN206773331U true CN206773331U (en) | 2017-12-19 |
Family
ID=60637484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720639691.9U Active CN206773331U (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) | CN206773331U (en) |
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2017
- 2017-06-05 CN CN201720639691.9U patent/CN206773331U/en active Active
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