CN103871385A - Mobile phone, liquid crystal display screen and normal display method of liquid crystal display screen under low temperature condition - Google Patents
Mobile phone, liquid crystal display screen and normal display method of liquid crystal display screen under low temperature condition Download PDFInfo
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- CN103871385A CN103871385A CN201410069771.6A CN201410069771A CN103871385A CN 103871385 A CN103871385 A CN 103871385A CN 201410069771 A CN201410069771 A CN 201410069771A CN 103871385 A CN103871385 A CN 103871385A
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Abstract
The invention relates to the technical field of liquid crystal display, in particular to a mobile phone, a liquid crystal display screen and a normal display method of the liquid crystal display screen under a low temperature condition. The method comprises the steps of providing a liquid crystal module which comprises a liquid crystal driving voltage adjusting unit used for adjusting the driving voltage of a liquid crystal; presetting a critical temperature, defining temperatures higher than the critical temperature to be in a first temperature range, and defining temperatures lower than the critical temperature to be in a second temperature range; detecting a current first temperature of the liquid crystal display screen; acquiring the current first temperature; when the current first temperature belongs to the first temperature range, enabling the liquid crystal driving voltage adjusting unit to drive the liquid crystal display screen in a constant voltage driving manner; when the current first temperature belongs to the second temperature range, enabling the liquid crystal driving voltage adjusting unit to drive the liquid crystal display screen in a variable voltage driving manner. Under the low temperature condition, corresponding driving voltage is selected, so that the liquid crystal display screen can normally display.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of mobile phone, LCDs and normal display packing under cryogenic conditions thereof.
Background technology
Most smart mobile phones adopt LCDs in the market, and adopt fixed voltage to drive LCDs.LCDs in the winter time ambient temperature in the time of-10 DEG C～-15 DEG C, mobile phone liquid crystal screen curtain there will be screen smear, flower screen display to show even and cannot normally show, and New Generation of Intelligent machine screen size is increasing at present, resolution is more and more higher, the fine defects of screen all will be exaggerated, and above problem will affect user and experience very much.
Summary of the invention
For prior art deficiency, the object of the present invention is to provide a kind of mobile phone, LCDs and normal display packing under cryogenic conditions thereof, under low temperature conditions, put forward high voltage drive LCDs, be intended to solve under cryogenic conditions, LCDs there will be the problem of the abnormal show such as smear, Hua Ping.
The technical scheme that the present invention proposes is:
A kind of LCDs is normal display packing under cryogenic conditions, comprising:
A liquid crystal module is provided, and it comprises a liquid crystal drive voltage regulon, and described liquid crystal drive voltage regulon is for regulating the driving voltage of liquid crystal;
A default critical temperature, will be defined as the first temperature range higher than the temperature of described critical temperature, will be defined as the second temperature range lower than the temperature of described critical temperature;
Detect the first Current Temperatures of described LCDs;
In the time that described the first Current Temperatures belongs to described the first temperature range, the mode that described liquid crystal drive voltage regulon is driven with constant voltage drives described LCDs, in the time that described the first Current Temperatures belongs to described the second temperature range, the mode that described liquid crystal drive voltage regulon is driven with transformation drives described LCDs.
Further, described critical temperature is 0 DEG C.
Further, described the second temperature range comprises multiple sub-temperature ranges, and the corresponding voltage of each sub-temperature range, is specially:
Default the first sub-temperature range be [10 DEG C, 0 DEG C), in the time that described the first Current Temperatures belongs to described the first sub-temperature range, the voltage of correspondence is 18V;
Default the second sub-temperature range be [20 DEG C ,-10 DEG C), in the time that described the first Current Temperatures belongs to described the second sub-temperature range, the voltage of correspondence is 20V;
Default the 3rd sub-temperature range be [30 DEG C ,-20 DEG C), in the time that described the first Current Temperatures belongs to described the 3rd sub-temperature range, the voltage of correspondence is 22V;
Default the 4th sub-temperature range be [40 DEG C ,-30 DEG C), in the time that described the first Current Temperatures belongs to described the 4th sub-temperature range, the voltage of correspondence is 24V.
Further, in the first Current Temperatures step of the described LCDs of described detection, be specially:
Detect the residing ambient temperature of described LCDs.
Further, after driving described LCDs, comprising:
In described LCDs procedure for displaying, detect the second Current Temperatures of described LCDs;
Described the second Current Temperatures is compared with described the first Current Temperatures;
When described the second Current Temperatures when identical, keeps current voltage output with described the first Current Temperatures;
In the time that described the second Current Temperatures is not identical with described the first Current Temperatures, judge the affiliated temperature range of described the second Current Temperatures, according to judged result, make described liquid crystal drive voltage regulon carry out corresponding voltage described LCDs is carried out to continued power.
The present invention also proposes a kind of LCDs, comprises liquid crystal module, presetting module, detection module and execution module;
Described liquid crystal module comprises a liquid crystal drive voltage regulon, and described liquid crystal drive voltage regulon is for regulating the driving voltage of liquid crystal;
Described presetting module, for a default critical temperature, will be defined as the first temperature range higher than the temperature of described critical temperature, will be defined as the second temperature range lower than the temperature of described critical temperature;
Described detection module, for detection of the first Current Temperatures of described LCDs;
Described execution module, for in the time that described the first Current Temperatures belongs to described the first temperature range, the mode that described liquid crystal drive voltage regulon is driven with constant voltage drives LCDs, in the time that described the first Current Temperatures belongs to described the second temperature range, the mode that described liquid crystal drive voltage regulon is driven with transformation drives described LCDs.
Further, described critical temperature is 0 DEG C.
Further, the temperature that described detection module detects is the residing ambient temperature of described LCDs.
Further, described detection module comprises sub-detection module, and described LCDs also comprises comparison module;
In described LCDs procedure for displaying, described sub-detection module is for detection of the second Current Temperatures of described LCDs;
Described comparison module is for comparing described the second Current Temperatures with described the first Current Temperatures;
When described the second Current Temperatures is with described the first Current Temperatures when identical, described sub-execution module is used for making described liquid crystal drive voltage regulon to carry out and keeps current voltage output;
In the time that described the second Current Temperatures is not identical with described the first Current Temperatures, described sub-execution module is used for judging the affiliated temperature range of described the second Current Temperatures, according to judged result, make described liquid crystal drive voltage regulon carry out corresponding voltage described LCDs is carried out to continued power.
The present invention also proposes a kind of mobile phone, has above-mentioned a kind of LCDs.
According to above-mentioned technical scheme, a kind of mobile phone of the present invention, LCDs and under cryogenic conditions the beneficial effect of normal display packing: the first Current Temperatures that detects LCDs, according to default temperature range, judge that the first Current Temperatures belongs to the first temperature range or belongs to the second temperature range, in the time that the first Current Temperatures belongs to the first temperature range, liquid crystal drive voltage regulon drives LCDs with constant voltage, in the time that the first Current Temperatures belongs to the second temperature range, the corresponding voltage of the first Current Temperatures, according to the first Current Temperatures, liquid crystal drive voltage regulon regulates it corresponding voltage is driven to LCDs, liquid crystal drive voltage regulon is put forward high voltage drive LCDs, LCDs is normally shown, solve because under cryogenic conditions, there is smear in LCDs, the demonstration problems such as Hua Ping.
Brief description of the drawings
Fig. 1 is the process flow diagram of a kind of LCDs of providing of the embodiment of the present invention normal display packing under cryogenic conditions;
Fig. 2 is the circuit diagram by NTC detected temperatures that the embodiment of the present invention provides;
Fig. 3 is the functional block diagram of a kind of LCDs of providing of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
For technical solutions according to the invention are described, describe below by specific embodiment.
As shown in Figure 1, the embodiment of the present invention provides a kind of LCDs normal display packing under cryogenic conditions, has both been applicable to before opening LCDs, is applicable to again LCDs just in procedure for displaying, and it comprises:
Step S101, provide a liquid crystal module, it comprises a liquid crystal drive voltage regulon, and liquid crystal drive voltage regulon is for regulating the driving voltage of liquid crystal;
Step S102, a default critical temperature, will be defined as the first temperature range higher than the temperature of critical temperature, and subcritical temperature is defined as to the second temperature range;
The first Current Temperatures of step S103, detection LCDs;
Step S104, in the time that the first Current Temperatures belongs to the first temperature range, the mode that liquid crystal drive voltage regulon is driven with constant voltage drives LCDs, in the time that the first Current Temperatures belongs to the second temperature range, the mode that liquid crystal drive voltage regulon is driven with transformation drives LCDs.
LCD(liquid crystal display) displaying principle is to be added in upper transparency electrode upper glass CF(color filter by control) layer and lower transparency electrode lower-glass TFT(thin film transistor (TFT)) and layer voltage extent, indirectly control the deflection angle of liquid crystal molecule, thereby control the anglec of rotation of light in liquid crystal, control by Polarizer and the light that covers number, thereby control the power that sees through light.The molecules align of liquid crystal layer liquid crystal can change along with the change of voltage, and molecules align changes and will change the optical characteristics of liquid crystal.Liquid crystal virgin state, when light passes through liquid crystal there are 90 degree variations in polarization direction, and liquid crystal powers up rear polarisation of light direction and changes with voltage.
In display screen, liquid crystal used is all thermotropic liquid crystal, and the transformation of liquid crystal phase is relevant with temperature.The orientation of Liquid Crystal Molecules Alignment is the function of temperature, and when temperature is lower, the response speed of liquid crystal molecule can be slack-off, thereby and then generation can occur that driving force is not enough produces the situation that smear even spends screen normally to show.
Temperature affects a key factor of the Liquid Crystal Molecules Alignment of LCDs, and under same driving voltage, temperature reduces may cause LCDs demonstration extremely.For example, be 15 DEG C in temperature, when driving voltage is 16V, LCDs normally shows; Be-15 DEG C in temperature, when driving voltage is 16V, LCDs abnormal show.This is because Liquid Crystal Molecules Alignment orientation temperature dependence causes showing the abnormal problem such as smear, Hua Ping.
Detect the first Current Temperatures of LCDs, according to default temperature range, judge that the first Current Temperatures belongs to the first temperature range or belongs to the second temperature range, in the time that the first Current Temperatures belongs to the first temperature range, under the first Current Temperatures, normal driving voltage just can make LCDs normally show, can there is not because of temperature problem the demonstration such as smear, Hua Ping problem, voltage corresponding to the first temperature range is constant voltage, liquid crystal drive voltage regulon drives liquid crystal display with constant voltage, this constant voltage is exactly normal driving voltage, is preferably 16V.
In the time that the first Current Temperatures belongs to the second temperature range, under the first Current Temperatures, normal driving voltage just can not make LCDs normally show, can there is because of temperature problem smear, the demonstration problems such as Hua Ping, voltage corresponding to the second temperature range is transformation, can change along with temperature variation, liquid crystal drive voltage regulon is determined a corresponding voltage according to the first Current Temperatures, according to liquid crystal feature, the rotational speed of liquid crystal molecule and torsion angle depend on the voltage swing being applied on liquid crystal, the response speed of liquid crystal is proportional to and applies voltage, for this reason, the voltage that the first Current Temperatures is corresponding, be greater than normal drive voltage.Under the first Current Temperatures, liquid crystal drive voltage regulon is put forward high voltage drive LCDs, and LCDs is normally shown, solves because under cryogenic conditions, and the demonstration such as smear, Hua Ping problem appears in LCDs.
The first temperature range and the second temperature range be the critical temperature of presetting be boundary, the in the situation that of normal-driving voltage LCDs, more than 0 DEG C, LCDs can both normally show, for this reason, in the present embodiment, preferably, critical temperature is made as 0 DEG C, and the cryogenic conditions that the present invention mentions refers to below 0 DEG C.
In the present embodiment, in the time that the first Current Temperatures equals critical temperature, liquid crystal drive voltage regulon drives LCDs with constant voltage.
In the second temperature range, liquid crystal drive voltage regulon is to determine voltage according to temperature, can be the corresponding voltage of each temperature, can be also the corresponding voltage of a temperature range.
In the present embodiment, the second temperature range comprises multiple sub-temperature ranges, the corresponding voltage of each sub-temperature range, according to temperature, voltage and liquid crystal feature three's relation, in order to allow LCDs normally show, temperature is that voltage corresponding to lapse of temperature increases progressively with voltage corresponding relation, is specially:
Default the first sub-temperature range be [10 DEG C, 0 DEG C), in the time that the first Current Temperatures belongs to the first sub-temperature range, preferably, the voltage of correspondence is 18V;
Default the second sub-temperature range be [20 DEG C ,-10 DEG C), in the time that the first Current Temperatures belongs to the second sub-temperature range, preferably, the voltage of correspondence is 20V;
Default the 3rd sub-temperature range be [30 DEG C ,-20 DEG C), in the time that the first Current Temperatures belongs to the 3rd sub-temperature range, preferably, the voltage of correspondence is 22V;
Default the 4th sub-temperature range be [40 DEG C ,-30 DEG C), in the time that the first Current Temperatures belongs to the 4th sub-temperature range, preferably, the voltage of correspondence is 24V.
Wherein, the first sub-temperature range be [10 DEG C, 0 DEG C), refer to the temperature between-10 DEG C and 0 DEG C, and comprise boundary value-10 DEG C, but do not comprise 0 DEG C of boundary value.
In the winter time time, in the time that the first Current Temperatures of detection LCDs is-12 DEG C, it is lower than 0 DEG C of critical temperature, belong to the second temperature range, particularly, the first Current Temperatures belongs to the second sub-temperature range, accordingly, the driving voltage drawing is 20V, and driving voltage is adjusted to 20V by liquid crystal drive voltage regulon, adopts 20V to drive LCDs.In the time of-12 DEG C, adopt higher than the voltage 20V of normal drive voltage and drive LCDs, can provide sufficient driving force to LCDs, LCDs is normally shown.Choose corresponding driving voltage according to the LCDs Current Temperatures detecting, make to save voltage under the normal condition showing and normally show in LCDs of LCDs, meet the demand to low-power consumption.
In step S103, can detect the temperature of LCDs body, also can detect ambient temperature, if detect the temperature of LCDs body, be easily subject to the interference of other heating interference sources such as circuit board, power supply.
In the present embodiment, in step S103, be specially:
Detect the residing ambient temperature of LCDs.
The means of concrete detected temperatures can be to utilize temperature sensor to gather Current Temperatures, then, the temperature information collecting are fed back to LCDs.
In the present embodiment, further illustrate taking the display screen on mobile phone as example, on LCD FPC winding displacement, thermistor is set, preferably, thermistor is NTC(negative tempperature coefficient thermistor), be connected to mobile phone terminal by FPC winding displacement, thermistor is arranged in glue frame as backlight in the LCD components and parts groove of the nearer place of distance L CD liquid crystal cell, the temperature that thermistor shows like this approaches most the ambient temperature at LCD place, is not subject to the interference of other heating interference sources such as cell phone mainboard, power supply simultaneously.
According to the resistance-temperature characteristics relation of thermistor, under different temperatures, the Standard resistance range difference of thermistor performance.As shown in Figure 2, NTC and a fixed resistance R are connected on to both ends of power, at this moment ADC(analog digital converter) gather the sampled voltage of NTC, mobile phone terminal processor can identify according to the sampled voltage of ADC the external temperature value at NTC place.
In use LCDs process, ambient temperature also can change, and for example, from south, by bus to the north, the residing ambient temperature of LCDs can change.For this reason, in the present embodiment, after driving LCDs, described a kind of LCDs normal display packing under cryogenic conditions also comprises:
In LCDs procedure for displaying, detect the second Current Temperatures of LCDs;
The second Current Temperatures is compared with the first Current Temperatures;
When the second Current Temperatures when identical, keeps current voltage output with the first Current Temperatures;
In the time that the second Current Temperatures and the first Current Temperatures are not identical, judge the affiliated temperature range of the second Current Temperatures, according to judged result, make described liquid crystal drive voltage regulon carry out corresponding voltage LCDs is carried out to continued power.
In LCDs procedure for displaying, the external environment condition that can detect in real time LCDs place is warm, and the external environment condition that also can periodically detect LCDs place is warm, preferably, detects once every 10 seconds.
In the time that the second Current Temperatures and the first Current Temperatures are not identical, but the second Current Temperatures and the first Current Temperatures belong to same temperature scope, if the second Current Temperatures and the first Current Temperatures are all the first temperature ranges, continue the Voltage-output that keeps current, if the second Current Temperatures and the first Current Temperatures are all the second temperature ranges, voltage-regulation corresponding the first Current Temperatures is become the voltage that the second Current Temperatures is corresponding by liquid crystal drive voltage regulon, can allow like this LCDs continue to show, can make again LCDs normally show, be not subject to the impact of ambient temperature.
In the time that the second Current Temperatures and the first Current Temperatures are not identical, but the second Current Temperatures and the first Current Temperatures do not belong to same temperature scope, as the first Current Temperatures belongs to the first temperature range, the second Current Temperatures belongs to the second temperature range, the result of carrying out is, voltage-regulation corresponding the first Current Temperatures is become the voltage that the second Current Temperatures is corresponding by liquid crystal drive voltage regulon, can allow like this LCDs continue to show, can make again LCDs normally show, not be subject to the impact of ambient temperature.
In order to implement above-mentioned a kind of LCDs normal display packing under cryogenic conditions, as shown in Figure 3, the embodiment of the present invention also provides a kind of LCDs, comprises liquid crystal module 11, presetting module 12, detection module 13 and execution module 14;
Liquid crystal module 11 comprises a liquid crystal drive voltage regulon 111, and liquid crystal drive voltage regulon 111 regulates for the driving voltage to liquid crystal;
Presetting module 12, for a default critical temperature, will be defined as the first temperature range higher than the temperature of critical temperature, and subcritical temperature is defined as to the second temperature range;
Detection module 13, for detection of the first Current Temperatures of LCDs;
Execution module 14, for in the time that the first Current Temperatures belongs to the first temperature range, the mode that liquid crystal drive voltage regulon is driven with constant voltage drives LCDs, in the time that the first Current Temperatures belongs to the second temperature range, the mode that liquid crystal drive voltage regulon is driven with transformation drives LCDs.
Detection module 13 detects the first Current Temperatures of LCDs, according to default temperature range, execution module 14 judges that the first Current Temperatures belongs to the first temperature range or belongs to the second temperature range, in the time that the first Current Temperatures belongs to the first temperature range, under the first Current Temperatures, normal driving voltage just can make LCDs normally show, can there is not because of temperature problem smear, the demonstration problems such as Hua Ping, execution module 14 is constant voltage by voltage corresponding the first temperature range, liquid crystal drive voltage regulon 111 drives liquid crystal display with constant voltage, this constant voltage is exactly normal driving voltage, be preferably 16V.
In the time that the first Current Temperatures belongs to the second temperature range, under the first Current Temperatures, normal driving voltage just can not make LCDs normally show, can there is because of temperature problem smear, the demonstration problems such as Hua Ping, voltage corresponding to the second temperature range is transformation, can change along with temperature variation, liquid crystal drive voltage regulon 111 is determined a corresponding voltage according to temperature, according to liquid crystal feature, the rotational speed of liquid crystal molecule and torsion angle depend on the voltage swing being applied on liquid crystal, the response speed of liquid crystal is proportional to and applies voltage, for this reason, the voltage that the first Current Temperatures is corresponding, be greater than normal drive voltage.Under the first Current Temperatures, liquid crystal drive voltage regulon 111 is put forward high voltage drive LCDs, and LCDs is normally shown, solves because under cryogenic conditions, and the demonstration such as smear, Hua Ping problem appears in LCDs.
The first temperature range and the second temperature range be the critical temperature of presetting be boundary, the in the situation that of normal-driving voltage LCDs, more than 0 DEG C, LCDs can both normally show, for this reason, in the present embodiment, preferably, critical temperature is made as 0 DEG C, and the cryogenic conditions that the present invention mentions refers to below 0 DEG C.
In the present embodiment, in the time that the first Current Temperatures equals critical temperature, liquid crystal drive voltage regulon 111 drives LCDs with constant voltage.
In the second temperature range, liquid crystal drive voltage regulon 111 is to determine voltage according to temperature, can be the corresponding voltage of each temperature, can be also the corresponding voltage of a temperature range.
In the present embodiment, the second temperature range comprises multiple sub-temperature ranges, the corresponding voltage of each sub-temperature range, according to temperature, voltage and liquid crystal feature three's relation, in order to allow LCDs normally show, temperature should be voltage corresponding to lapse of temperature with voltage corresponding relation and increases progressively, and is specially:
Default the first sub-temperature range be [10 DEG C, 0 DEG C), in the time that the first Current Temperatures belongs to the first sub-temperature range, preferably, the voltage of correspondence is 18V;
Default the second sub-temperature range be [20 DEG C ,-10 DEG C), in the time that the first Current Temperatures belongs to the second sub-temperature range, preferably, the voltage of correspondence is 20V;
Default the 3rd sub-temperature range be [30 DEG C ,-20 DEG C), in the time that the first Current Temperatures belongs to the 3rd sub-temperature range, preferably, the voltage of correspondence is 22V;
Default the 4th sub-temperature range be [40 DEG C ,-30 DEG C), in the time that the first Current Temperatures belongs to the 4th sub-temperature range, preferably, the voltage of correspondence is 24V.
Wherein, the first sub-temperature range be [10 DEG C, 0 DEG C), refer to the temperature between-10 DEG C and 0 DEG C, and comprise boundary value-10 DEG C, but do not comprise 0 DEG C of boundary value.
In the winter time time, in the time that the first Current Temperatures of detection LCDs is-12 DEG C, it is lower than 0 DEG C of critical temperature, belong to the second temperature range, particularly, the first Current Temperatures belongs to the second sub-temperature range, accordingly, the driving voltage drawing is 20V, and driving voltage is adjusted to 20V by liquid crystal drive voltage regulon, adopts 20V to drive LCDs.In the time of-12 DEG C, adopt higher than the voltage 20V of normal drive voltage and drive LCDs, can provide sufficient driving force to LCDs, LCDs is normally shown.Choose corresponding driving voltage according to the LCDs Current Temperatures detecting, make to save voltage under the normal condition showing and normally show in LCDs of LCDs, meet the demand to low-power consumption.
Detection module 13 can detect the temperature of LCDs body, also can detect ambient temperature, if detect the temperature of LCDs body, is easily subject to the interference of other heating interference sources such as circuit board, power supply.
In the present embodiment, the temperature that detection module 13 detects, is specially:
Detect the residing ambient temperature of LCDs.
The means of concrete detected temperatures can be to utilize temperature sensor to gather Current Temperatures, then, the temperature information collecting are fed back to LCDs.
In the present embodiment, further illustrate taking the display screen on mobile phone as example, on LCD FPC winding displacement, thermistor is set, preferably, thermistor is NTC(negative tempperature coefficient thermistor), be connected to mobile phone terminal by FPC winding displacement, thermistor is arranged in glue frame as backlight in the LCD components and parts groove of the nearer place of distance L CD liquid crystal cell, the temperature that thermistor shows like this approaches most the ambient temperature at LCD place, is not subject to the interference of other heating interference sources such as cell phone mainboard, power supply simultaneously.
According to the resistance-temperature characteristics relation of thermistor, under different temperatures, the Standard resistance range difference of thermistor performance.As shown in Figure 2, NTC and a fixed resistance R are connected on to both ends of power, at this moment ADC(analog digital converter) gather the sampled voltage of NTC, mobile phone terminal processor can identify according to the sampled voltage of ADC the external temperature value at NTC place.
In use LCDs process, ambient temperature also can change, and for example, from south, by bus to the north, the residing ambient temperature of LCDs can change.For this reason, in the present embodiment, after driving LCDs, detection module 13 comprises sub-detection module, and execution module 14 comprises sub-execution module, and described LCDs also comprises comparison module;
In LCDs procedure for displaying, sub-detection module is for detection of the second Current Temperatures of LCDs;
Comparison module is for comparing the second Current Temperatures with the first Current Temperatures;
When the second Current Temperatures is with the first Current Temperatures when identical, sub-execution module is used for making liquid crystal drive voltage regulon 111 to carry out and keeps current voltages output;
In the time that the second Current Temperatures and the first Current Temperatures are not identical, sub-execution module is used for judging the affiliated temperature range of the second Current Temperatures, according to judged result, make described liquid crystal drive voltage regulon 111 carry out corresponding voltage LCDs is carried out to continued power.
In LCDs procedure for displaying, the external environment condition that sub-detection module can detect LCDs place is in real time warm, and the external environment condition that also can periodically detect LCDs place is warm, preferably, detects once every 10 seconds.
In the time that the second Current Temperatures and the first Current Temperatures are not identical, but the second Current Temperatures and the first Current Temperatures belong to same temperature scope, if the second Current Temperatures and the first Current Temperatures are all the first temperature ranges, continue the Voltage-output that keeps current, if the second Current Temperatures and the first Current Temperatures are all the second temperature ranges, voltage-regulation corresponding the first Current Temperatures is become the voltage that the second Current Temperatures is corresponding by liquid crystal drive voltage regulon 111, can allow like this LCDs continue to show, can make again LCDs normally show, be not subject to the impact of ambient temperature.
In the time that the second Current Temperatures and the first Current Temperatures are not identical, but the second Current Temperatures and the first Current Temperatures do not belong to same temperature scope, as the first Current Temperatures belongs to the first temperature range, the second Current Temperatures belongs to the second temperature range, the result of carrying out is, voltage-regulation corresponding the first Current Temperatures is become the voltage that the second Current Temperatures is corresponding by liquid crystal drive voltage regulon 111, can allow like this LCDs continue to show, can make again LCDs normally show, not be subject to the impact of ambient temperature.
The embodiment of the present invention also proposes a kind of mobile phone, has above-mentioned a kind of LCDs.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. LCDs normal display packing under cryogenic conditions, is characterized in that, comprising:
A liquid crystal module is provided, and it comprises a liquid crystal drive voltage regulon, and described liquid crystal drive voltage regulon is for regulating the driving voltage of liquid crystal;
A default critical temperature, will be defined as the first temperature range higher than the temperature of described critical temperature, will be defined as the second temperature range lower than the temperature of described critical temperature;
Detect the first Current Temperatures of described LCDs;
In the time that described the first Current Temperatures belongs to described the first temperature range, the mode that described liquid crystal drive voltage regulon is driven with constant voltage drives described LCDs, in the time that described the first Current Temperatures belongs to described the second temperature range, the mode that described liquid crystal drive voltage regulon is driven with transformation drives described LCDs.
2. a kind of LCDs as claimed in claim 1 normal display packing under cryogenic conditions, is characterized in that, described critical temperature is 0 DEG C.
3. a kind of LCDs as claimed in claim 2 normal display packing under cryogenic conditions, is characterized in that, described the second temperature range comprises multiple sub-temperature ranges, and the corresponding voltage of each sub-temperature range, is specially:
Default the first sub-temperature range be [10 DEG C, 0 DEG C), in the time that described the first Current Temperatures belongs to described the first sub-temperature range, the voltage of correspondence is 18V;
Default the second sub-temperature range be [20 DEG C ,-10 DEG C), in the time that described the first Current Temperatures belongs to described the second sub-temperature range, the voltage of correspondence is 20V;
Default the 3rd sub-temperature range be [30 DEG C ,-20 DEG C), in the time that described the first Current Temperatures belongs to described the 3rd sub-temperature range, the voltage of correspondence is 22V;
Default the 4th sub-temperature range be [40 DEG C ,-30 DEG C), in the time that described the first Current Temperatures belongs to described the 4th sub-temperature range, the voltage of correspondence is 24V.
4. a kind of LCDs as claimed in claim 1 normal display packing under cryogenic conditions, is characterized in that, in the first Current Temperatures step of the described LCDs of described detection, is specially:
Detect the residing ambient temperature of described LCDs.
5. a kind of LCDs as described in as arbitrary in claim 1-4 is normal display packing under cryogenic conditions, it is characterized in that, after driving described LCDs, comprising:
In described LCDs procedure for displaying, detect the second Current Temperatures of described LCDs;
Described the second Current Temperatures is compared with described the first Current Temperatures;
When described the second Current Temperatures when identical, keeps current voltage output with described the first Current Temperatures;
In the time that described the second Current Temperatures is not identical with described the first Current Temperatures, judge the affiliated temperature range of described the second Current Temperatures, according to judged result, make described liquid crystal drive voltage regulon carry out corresponding voltage described LCDs is carried out to continued power.
6. a LCDs, is characterized in that, comprises liquid crystal module, presetting module, detection module and execution module;
Described liquid crystal module comprises a liquid crystal drive voltage regulon, and described liquid crystal drive voltage regulon is for regulating the driving voltage of liquid crystal;
Described presetting module, for a default critical temperature, will be defined as the first temperature range higher than the temperature of described critical temperature, will be defined as the second temperature range lower than the temperature of described critical temperature;
Described detection module, for detection of the first Current Temperatures of described LCDs;
Described execution module, for in the time that described the first Current Temperatures belongs to described the first temperature range, the mode that described liquid crystal drive voltage regulon is driven with constant voltage drives described LCDs, in the time that described the first Current Temperatures belongs to described the second temperature range, the mode that described liquid crystal drive voltage regulon is driven with transformation drives described LCDs.
7. a kind of LCDs as claimed in claim 6, is characterized in that, described critical temperature is 0 DEG C.
8. a kind of LCDs as claimed in claim 6, is characterized in that, the temperature that described detection module detects is the residing ambient temperature of described LCDs.
9. a kind of LCDs as described in as arbitrary in claim 6-8, is characterized in that, described detection module comprises sub-detection module, and described execution module comprises sub-execution module, and described LCDs also comprises comparison module;
In described LCDs procedure for displaying, described sub-detection module is for detection of the second Current Temperatures of described LCDs;
Described comparison module is for comparing described the second Current Temperatures with described the first Current Temperatures;
When described the second Current Temperatures is with described the first Current Temperatures when identical, described sub-execution module is used for making described liquid crystal drive voltage regulon to carry out and keeps current voltage output;
In the time that described the second Current Temperatures is not identical with described the first Current Temperatures, described sub-execution module is used for judging the affiliated temperature range of described the second Current Temperatures, according to judged result, make described liquid crystal drive voltage regulon carry out corresponding voltage described LCDs is carried out to continued power.
10. a mobile phone, is characterized in that, has a kind of LCDs as described in as arbitrary in claim 6-9.
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