CN101593491A - The drive unit of liquid crystal display panel in ultra-low-temperature environment - Google Patents
The drive unit of liquid crystal display panel in ultra-low-temperature environment Download PDFInfo
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- CN101593491A CN101593491A CNA2008100283999A CN200810028399A CN101593491A CN 101593491 A CN101593491 A CN 101593491A CN A2008100283999 A CNA2008100283999 A CN A2008100283999A CN 200810028399 A CN200810028399 A CN 200810028399A CN 101593491 A CN101593491 A CN 101593491A
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Abstract
The present invention relates to the technical field of driving of display panels, relate in particular to a kind of drive unit of liquid crystal display panel in ultra-low-temperature environment, it comprises the well heater that is arranged on the display panels back side, the controller that is used to drive well heater, the output terminal of controller is connected with the input end of well heater, when the residing environment temperature of display panels is lower than the predefined temperature of controller, controller can drive well heater display panels is heated, make display panels keep suitable temperature, thereby guarantee the operate as normal of display panels; Therefore, the present invention simple in structure, reasonable in design, can guarantee display panels operate as normal still under ultra-low temperature surroundings.
Description
Technical field:
The present invention relates to the technical field of driving of display panels, relate in particular to a kind of drive unit of liquid crystal display panel in ultra-low-temperature environment.
Background technology:
LCD has been widely used on the display devices such as various portable type electronic product, transport facility because volume is little, low in energy consumption.Wherein, LCD mainly comprises display panels, and display panels is the double glazing base board unit of being fitted and being formed by two sheet glass base plate alignments, and the gap is also left to inject liquid crystal in the centre.Yet, in actual applications, be in when display panels under the environment of ultralow temperature, as extraordinary field work (geological mapping, the outdoor plan machine in oil field, wind-power electricity generation), military use (aircraft, battlebus, monitoring, army's boat), liquid crystal can be transformed into solid-state and can't reverse according to the variation of electric field, causes the LCD can't normal operation.The minimum serviceability temperature of available liquid crystal display panel only is negative 20 ℃, and the environment that obviously is not suitable for above-mentioned ultralow temperature uses down.
Summary of the invention:
Purpose of the present invention is exactly the drive unit that a kind of liquid crystal display panel in ultra-low-temperature environment is provided at the deficiency of prior art existence.
To achieve these goals, the technical solution used in the present invention is:
It comprises the well heater that is arranged on the display panels back side, the controller that is used to drive well heater, and the output terminal of controller is connected with the input end of well heater.
Wherein, described controller comprises the temperature-sensing element (device) that is used for the acquisition environment temperature, be used to set and VGA (the Video Graphics Array of input parameter, Video Graphics Array) display board, temperature-control circuit, be the power module of temperature-control circuit power supply, temperature-sensing element (device) is connected with the input end of temperature-control circuit, the output terminal of VGA display board is connected with the input end of temperature-control circuit, and power module is connected with the power input of temperature-control circuit; The input end of described well heater is connected with the output terminal of temperature-control circuit.
Wherein, described controller also can be automatic temperature switch.
Wherein, described well heater is an electric heating film.
Beneficial effect of the present invention is:
The drive unit of a kind of liquid crystal display panel in ultra-low-temperature environment provided by the invention comprises the well heater that is arranged on the display panels back side, the controller that is used to drive well heater, the output terminal of controller is connected with the input end of well heater, when the residing environment temperature of display panels is lower than the predefined temperature of controller, controller can drive well heater display panels is heated, make display panels keep suitable temperature, thereby guarantee the operate as normal of display panels.Therefore, the present invention simple in structure, reasonable in design, can guarantee display panels operate as normal still under ultra-low temperature surroundings.
Description of drawings:
Fig. 1 is the frame principle figure of the embodiment of the invention one;
Fig. 2 is the frame principle figure of the embodiment of the invention two;
Fig. 3 is that the present invention is installed in the structural representation on the display panels.
Embodiment:
The present invention is further illustrated below in conjunction with accompanying drawing, see shown in Figure 1, this is embodiments of the invention one, it comprises the well heater 2 that is arranged on display panels 1 back side, the controller 3 that is used to drive well heater 2, the output terminal of controller 3 is connected with the input end of well heater 2, and more particularly, described well heater 2 is an electric heating film, can convert electrical energy into heat energy, it closely is fixed on the back side of display panels 1; Wherein, described controller 3 comprises the temperature-sensing element (device) 31 that is used for the acquisition environment temperature, be used to set and the VGA display board 32 of input parameter, temperature-control circuit 33, be the power module 34 of temperature-control circuit 33 power supplies, temperature-sensing element (device) 31 is connected with the input end of temperature-control circuit 33, the output terminal of VGA display board 32 is connected with the input end of temperature-control circuit 33, and power module 34 is connected with the power input of temperature-control circuit 33; The input end of described well heater 2 is connected with the output terminal of temperature-control circuit 33.
When the temperature-sensing element (device) 31 of controller 3 detects display panels 1 residing environment temperature and is lower than temperature-control circuit 33 predefined temperature, temperature-control circuit 33 can heat according to 2 pairs of display panels 1 of predefined driven by program well heater, make display panels 1 keep suitable temperature, thereby guarantee display panels 1 operate as normal still under ultra-low temperature surroundings.
See shown in Figure 2, this is embodiments of the invention two, it comprises the well heater 2 that is arranged on display panels 1 back side, the controller 3 that is used to drive well heater 2, the output terminal of controller 3 is connected with the input end of well heater 2, more particularly, described well heater 2 is an electric heating film, can convert electrical energy into heat energy, and it closely is fixed on the back side of display panels 1; Wherein, described controller 3 is an automatic temperature switch, it is provided with a temperature fixed value, when it is in environment temperature and is lower than this fixed value, can connect switch automatically, drive 2 pairs of display panels 1 of well heater and heat, make display panels 1 keep suitable temperature, thereby guarantee display panels 1 operate as normal still under ultra-low temperature surroundings; When it is in environment temperature and is higher than this fixed value, can cut off switch automatically, stop to drive well heater 2.
Please refer to Fig. 3, this is that the present invention is installed in the structural representation on the display panels 1, in order can under ultra-low temperature surroundings, to heat timely to display panels 1, well heater 2 of the present invention closely is fixed on the back side of display panels 1, the present invention makes LCD can be applicable to the environment of ultralow temperature such as extraordinary field work (geological mapping, the outdoor plan machine in oil field, wind-power electricity generation), military use (aircraft, battlebus, monitoring, army's boat), fuel charger, cash dispenser in negative 55 ℃ of storages down, negative 45 ℃ of work down.
Certainly, the above only is preferred embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (4)
1, the drive unit of liquid crystal display panel in ultra-low-temperature environment, it is characterized in that: it comprises the well heater (2) that is arranged on display panels (1) back side, the controller (3) that is used to drive well heater (2), and the output terminal of controller (3) is connected with the input end of well heater (2).
2, the drive unit of liquid crystal display panel in ultra-low-temperature environment according to claim 1, it is characterized in that: described controller (3) comprises the temperature-sensing element (device) (31) that is used for the acquisition environment temperature, be used to set the also VGA display board (32) of input parameter, temperature-control circuit (33), power module (34) for temperature-control circuit (33) power supply, temperature-sensing element (device) (31) is connected with the input end of temperature-control circuit (33), the output terminal of VGA display board (32) is connected with the input end of temperature-control circuit (33), and power module (34) is connected with the power input of temperature-control circuit (33); The input end of described well heater (2) is connected with the output terminal of temperature-control circuit (33).
3, the drive unit of liquid crystal display panel in ultra-low-temperature environment according to claim 1 is characterized in that: described controller (3) is an automatic temperature switch.
4, according to the drive unit of any described liquid crystal display panel in ultra-low-temperature environment of claim 1 to 3, it is characterized in that: described well heater (2) is an electric heating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100283999A CN101593491A (en) | 2008-05-30 | 2008-05-30 | The drive unit of liquid crystal display panel in ultra-low-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100283999A CN101593491A (en) | 2008-05-30 | 2008-05-30 | The drive unit of liquid crystal display panel in ultra-low-temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101593491A true CN101593491A (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100283999A Pending CN101593491A (en) | 2008-05-30 | 2008-05-30 | The drive unit of liquid crystal display panel in ultra-low-temperature environment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749742A (en) * | 2011-04-19 | 2012-10-24 | 青岛海信电器股份有限公司 | Device for regulating temperature gradient of liquid crystal module and method as well as liquid crystal module |
| CN103370738A (en) * | 2010-12-15 | 2013-10-23 | 三星电子株式会社 | Liquid crystal display and driving method thereof |
| CN104656298A (en) * | 2013-11-21 | 2015-05-27 | 全视技术有限公司 | Thermal carrier for an LCOS display panel and associated methods |
| CN105892128A (en) * | 2016-06-15 | 2016-08-24 | 苏州众显电子科技有限公司 | Driving device of liquid crystal display panel under ultralow-temperature environment |
| CN109213224A (en) * | 2018-08-14 | 2019-01-15 | 汉王科技股份有限公司 | The temprature control method and device of electronic ink screen, display equipment |
| CN109375675A (en) * | 2018-12-18 | 2019-02-22 | 国网西藏电力有限公司 | A kind of constant temperature controller helping field equipment in arctic operation |
-
2008
- 2008-05-30 CN CNA2008100283999A patent/CN101593491A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103370738A (en) * | 2010-12-15 | 2013-10-23 | 三星电子株式会社 | Liquid crystal display and driving method thereof |
| CN103370738B (en) * | 2010-12-15 | 2017-07-07 | 三星电子株式会社 | Liquid Crystal Display And Method For Driving |
| CN102749742A (en) * | 2011-04-19 | 2012-10-24 | 青岛海信电器股份有限公司 | Device for regulating temperature gradient of liquid crystal module and method as well as liquid crystal module |
| CN102749742B (en) * | 2011-04-19 | 2015-10-14 | 青岛海信电器股份有限公司 | A kind of device of adjustable liquid crystal display module temperature gradient, method and liquid crystal module |
| CN104656298A (en) * | 2013-11-21 | 2015-05-27 | 全视技术有限公司 | Thermal carrier for an LCOS display panel and associated methods |
| CN105892128A (en) * | 2016-06-15 | 2016-08-24 | 苏州众显电子科技有限公司 | Driving device of liquid crystal display panel under ultralow-temperature environment |
| CN109213224A (en) * | 2018-08-14 | 2019-01-15 | 汉王科技股份有限公司 | The temprature control method and device of electronic ink screen, display equipment |
| CN109213224B (en) * | 2018-08-14 | 2020-11-20 | 汉王科技股份有限公司 | Temperature control method and device of electronic ink screen and display equipment |
| CN109375675A (en) * | 2018-12-18 | 2019-02-22 | 国网西藏电力有限公司 | A kind of constant temperature controller helping field equipment in arctic operation |
| CN109375675B (en) * | 2018-12-18 | 2021-11-16 | 国网西藏电力有限公司 | Constant temperature controller for assisting field equipment to operate in severe cold area |
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Open date: 20091202 |