CN105892128A - Driving device of liquid crystal display panel under ultralow-temperature environment - Google Patents
Driving device of liquid crystal display panel under ultralow-temperature environment Download PDFInfo
- Publication number
- CN105892128A CN105892128A CN201610419194.8A CN201610419194A CN105892128A CN 105892128 A CN105892128 A CN 105892128A CN 201610419194 A CN201610419194 A CN 201610419194A CN 105892128 A CN105892128 A CN 105892128A
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- China
- Prior art keywords
- temperature
- liquid crystal
- display panel
- crystal display
- heater
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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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 relates to the technical field of driving devices of liquid crystal display panels, particularly to a driving device of a liquid crystal display panel under an ultralow-temperature environment. The driving device comprises a heater arranged on the back surface of the liquid crystal display panel, and a controller for driving the heater, wherein the output end of the controller is connected with the input end of the heater; when the temperature in the environment where the liquid crystal display panel is placed is lower than temperature preset by the controller, the controller can drive the heater to heat the liquid crystal display panel, so that the liquid crystal display panel can keep proper in temperature to make sure that the liquid crystal display panel works normally. Therefore, the driving device is simple in structure and reasonable in design, and can make sure that the liquid crystal display panel can work normally under the ultralow-temperature environment.
Description
Technical field
The present invention relates to the technical field of driving of display panels, particularly relate to liquid crystal under a kind of ultra-low temperature surroundings
The driving means of display floater.
Background technology
Liquid crystal display is little, low in energy consumption due to volume, has been widely used in various portable type electronic product, traffic fortune
On the display devices such as defeated instrument.Wherein, liquid crystal display mainly includes display panels, and display panels is by two panels glass
The double glazing base board unit of glass base plate alignment laminating, gap is also left to inject liquid crystal in centre.But, apply in reality
In, in the environment of display panels is in ultralow temperature, such as special field operation (geological mapping, open air, oil field plan machine, wind
Power generate electricity), military use (aircraft, battlebus, monitoring, army boat), liquid crystal can be transformed into solid-state and cannot turn round according to the change of electric field
Turn, cause the liquid crystal display cannot normal operation.The minimum use temperature of available liquid crystal display floater is only negative 20 DEG C, it is clear that no
Use in the environment of being applicable to above-mentioned ultralow temperature.
Summary of the invention
The purpose of the present invention is aiming at the deficiency of prior art existence and provides liquid crystal display under a kind of ultra-low temperature surroundings
The driving means of panel.
To achieve these goals, the technical solution used in the present invention is: it includes being arranged on LCD back
Heater, for driving the controller of heater, the outfan of controller is connected with the input of heater.
Wherein, described controller includes the temperature-sensing element (device) for detecting ambient temperature, for setting and inputting parameter
VGA (Video Graphics Array, Video Graphics Array) display panel, temperature-control circuit, for temperature-control circuit supply
The power module of electricity, temperature-sensing element (device) is connected with the input of temperature-control circuit, the outfan of VGA display panel and temperature control
The input of circuit processed connects, and power module is connected with the power input of temperature-control circuit；The input of described heater
It is connected with the outfan of temperature-control circuit.
Wherein, described controller can also be automatic temperature switch.
Wherein, described heater is electric heating film.
The present invention has the beneficial effects that: the driving means of a kind of liquid crystal display panel in ultra-low-temperature environment that the present invention provides
Including being arranged on the heater of LCD back, for driving the controller of heater, the outfan of controller with add
The input of hot device connects, and when the ambient temperature residing for display panels is less than controller predetermined temperature, controls
Device can drive heater to heat display panels, makes display panels keep suitable temperature, thus ensures liquid
The normal work of LCD panel.Therefore, present configuration is simple, reasonable in design, can ensure that display panels ultralow
The most normally work under temperature environment.
Accompanying drawing explanation
Fig. 1 is the frame principle figure of the embodiment of the present invention one.
Fig. 2 is the frame principle figure of the embodiment of the present invention two.
Fig. 3 is the structural representation that the present invention is arranged on display panels.
Wherein: 1, display panels, 2, heater, 3, controller, 31, temperature-sensing element (device), 32, VGA display surface
Plate, 33, temperature-control circuit, 34, power module.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings, and as shown in Figure 1, this is embodiments of the invention one, its
Including being arranged on the heater 2 at display panels 1 back side, for driving the controller 3 of heater 2, the outfan of controller 3
Being connected with the input of heater 2, more specifically, described heater 2 is electric heating film, can convert electrical energy into heat energy,
It is tightly fixed to the back side of display panels 1；Wherein, described controller 3 includes that the temperature for detecting ambient temperature is quick
Sensing unit 31, for setting and input the VGA display panel 32 of parameter, temperature-control circuit 33, power for temperature-control circuit 33
Power module 34, temperature-sensing element (device) 31 is connected with the input of temperature-control circuit 33, the outfan of VGA display panel 32 with
The input of temperature-control circuit 33 connects, and power module 34 is connected with the power input of temperature-control circuit 33；Described add
The input of hot device 2 is connected with the outfan of temperature-control circuit 33.
When the temperature-sensing element (device) 31 of controller 3 detects the ambient temperature residing for display panels 1 less than temperature control
During circuit 33 predetermined temperature processed, temperature-control circuit 33 can be according to driven by program heater set in advance 2 to liquid crystal
Display floater 1 heats, and makes display panels 1 keep suitable temperature, thus ensures that display panels 1 is at ultralow temperature
The most normally work under environment.
As shown in Figure 2, this is embodiments of the invention two, it heater including being arranged on display panels 1 back side
2, for driving the controller 3 of heater 2, the outfan of controller 3 is connected with the input of heater 2, more specifically, and institute
Stating heater 2 is electric heating film, can convert electrical energy into heat energy, and it is tightly fixed to the back side of display panels 1；Its
In, described controller 3 is automatic temperature switch, and it is provided with a temperature fixed value, when it is in ambient temperature less than this fixed value
Time, turn on automatically can switch, drive heater 2 that display panels 1 is heated, make display panels 1 keep suitable
Temperature, thus ensure that display panels 1 the most normally works under ultra-low temperature surroundings；When it is in ambient temperature higher than being somebody's turn to do
During fixed value, switch can be automatically cut off, stop driving heater 2.
Refer to Fig. 3, this is the structural representation that the present invention is arranged on display panels 1, in order to ultralow
Heating display panels 1 timely under temperature environment, the heater 2 of the present invention is tightly fixed to display panels 1
The back side, the present invention makes liquid crystal display can store at negative 55 DEG C, work at negative 45 DEG C, can be applicable to special field operation
(geological mapping, open air, oil field plan machine, wind-power electricity generation), military use (aircraft, battlebus, monitoring, army's boat), fuel charger, withdraw the money
The environment of the ultralow temperature such as machine.
Certainly, the above is only presently preferred embodiments of the present invention, therefore all according to the structure described in present patent application scope
Make, equivalence change that feature and principle are done or modify, in the range of being all included in present patent application.
Claims (4)
1. the driving means of liquid crystal display panel in ultra-low-temperature environment, it is characterised in that: it includes being arranged on display panels
(1) back side heater (2), be used for driving the controller (3) of heater (2), the outfan of controller (3) and heater (2)
Input connect.
The driving means of liquid crystal display panel in ultra-low-temperature environment the most according to claim 1, it is characterised in that: described control
Device processed (3) includes the temperature-sensing element (device) (31) for detecting ambient temperature, for setting and input the VGA display panel of parameter
(32), temperature-control circuit (33), the power module (34) powered for temperature-control circuit (33), temperature-sensing element (device) (31) with
The input of temperature-control circuit (33) connects, the outfan of VGA display panel (32) and the input of temperature-control circuit (33)
Connecting, power module (34) is connected with the power input of temperature-control circuit (33)；The input of described heater (2) and temperature
The outfan of degree control circuit (33) connects.
The driving means of liquid crystal display panel in ultra-low-temperature environment the most according to claim 1, it is characterised in that: described control
Device processed (3) is automatic temperature switch.
4. according to the driving means of the liquid crystal display panel in ultra-low-temperature environment described in claims 1 to 3 any one, its feature
It is: described heater (2) is electric heating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610419194.8A CN105892128A (en) | 2016-06-15 | 2016-06-15 | Driving device of liquid crystal display panel under ultralow-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610419194.8A CN105892128A (en) | 2016-06-15 | 2016-06-15 | Driving device of liquid crystal display panel under ultralow-temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105892128A true CN105892128A (en) | 2016-08-24 |
Family
ID=56729477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610419194.8A Withdrawn CN105892128A (en) | 2016-06-15 | 2016-06-15 | Driving device of liquid crystal display panel under ultralow-temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105892128A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646967A (en) * | 2016-10-28 | 2017-05-10 | 努比亚技术有限公司 | LED screen and temperature compensation method thereof |
| CN108646450A (en) * | 2018-04-23 | 2018-10-12 | 深圳市华星光电半导体显示技术有限公司 | A kind of heating system and heating means of display panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222341Y (en) * | 2008-05-30 | 2009-04-15 | 东莞市飞尔液晶显示器有限公司 | Drive device for liquid crystal display board under ultra low temperature environment |
| CN101593491A (en) * | 2008-05-30 | 2009-12-02 | 东莞市飞尔液晶显示器有限公司 | The drive unit of liquid crystal display panel in ultra-low-temperature environment |
| CN201489237U (en) * | 2009-08-20 | 2010-05-26 | 天马微电子股份有限公司 | Liquid crystal display device |
| CN202563210U (en) * | 2012-05-26 | 2012-11-28 | 浙江师范大学 | Intelligent liquid crystal display (LCD) device |
-
2016
- 2016-06-15 CN CN201610419194.8A patent/CN105892128A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222341Y (en) * | 2008-05-30 | 2009-04-15 | 东莞市飞尔液晶显示器有限公司 | Drive device for liquid crystal display board under ultra low temperature environment |
| CN101593491A (en) * | 2008-05-30 | 2009-12-02 | 东莞市飞尔液晶显示器有限公司 | The drive unit of liquid crystal display panel in ultra-low-temperature environment |
| CN201489237U (en) * | 2009-08-20 | 2010-05-26 | 天马微电子股份有限公司 | Liquid crystal display device |
| CN202563210U (en) * | 2012-05-26 | 2012-11-28 | 浙江师范大学 | Intelligent liquid crystal display (LCD) device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646967A (en) * | 2016-10-28 | 2017-05-10 | 努比亚技术有限公司 | LED screen and temperature compensation method thereof |
| CN108646450A (en) * | 2018-04-23 | 2018-10-12 | 深圳市华星光电半导体显示技术有限公司 | A kind of heating system and heating means of display panel |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160824 |