CN104575446A - Brightness adjustment method and device of display screen and air conditioner - Google Patents
Brightness adjustment method and device of display screen and air conditioner Download PDFInfo
- Publication number
- CN104575446A CN104575446A CN201410856483.5A CN201410856483A CN104575446A CN 104575446 A CN104575446 A CN 104575446A CN 201410856483 A CN201410856483 A CN 201410856483A CN 104575446 A CN104575446 A CN 104575446A
- Authority
- CN
- China
- Prior art keywords
- brightness
- display screen
- current environment
- duty cycle
- current
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a brightness adjustment method of a display screen. The method comprises the steps that in the operating process of a household appliance, a current ambient brightness LC is acquired; when the current ambient brightness LC is lower than a target brightness LT and the difference value between the current ambient brightness LC and the target brightness LT is within a preset adjustment range value, the brightness of the display screen is adjusted to be lower; when the current ambient brightness LC is higher than the target brightness LT and the absolute value of the difference value between the current ambient brightness LC and the target brightness LT is larger than a fluctuating value DF, the brightness of the display screen is adjusted to be higher. The invention further discloses an air conditioner and a brightness adjustment device of the display screen. When the brightness of the display screen is adjusted through the method and the device, the current ambient brightness and the brightness of the display screen are fully considered, so that the screen display is prevented from haloing and kept in the optimal display state.
Description
Technical field
The present invention relates to display screen field, particularly relate to a kind of brightness adjusting method and device, air conditioner of display screen.
Background technology
Along with the development of air conditioner intelligent technology, dissimilar sensor can be increased in air conditioner, such as light sensor.But in order to save cost; general light sensor all becomes one totally with display module design; therefore the distance of display screen and light sensor is smaller; and in order to obtain the sensitivity of good display effect and raising light sensor induced environment light; air-conditioning panel can be designed to printing opacity usually; the light that display screen like this sends will come in scattering; form halation; especially time at night; the high light scattering that air conditioner display screen sends is come; form obvious halation, both affected attractive in appearance, stray light dependent sensor is to the induction of ambient light again.
Summary of the invention
Fundamental purpose of the present invention is the brightness adjusting method and device, the air conditioner that provide a kind of display screen, is intended to avoid display screen to produce halation, makes display screen be in best image state.
In order to achieve the above object, the invention provides a kind of brightness adjusting method of display screen, comprise the following steps:
In the operational process of household electrical appliance, obtain current environment brightness LC;
When current environment brightness LC is less than object brightness LT, and the difference of current environment brightness LC and object brightness LT preset range of adjustment value in time, dim the brightness of display screen;
When current environment brightness LC is greater than object brightness LT, and when the absolute value of the difference of current environment brightness LC and object brightness LT is greater than undulating quantity DF, lighten the brightness of display screen.
Preferably, the brightness dimming display screen described in comprises:
By current environment brightness LC assignment to object brightness LT;
Reduce current duty cycle DT, to regulate the brightness of display screen according to this dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is less than object brightness LT, and whether current duty cycle DT is greater than minimum duty cycle DTmin; If so, then return perform described by current environment brightness LC assignment to the step of object brightness LT; Then terminate brightness regulation flow process if not.
Preferably, the brightness lightening display screen described in comprises:
By current environment brightness LC assignment to object brightness LT;
Increase current duty cycle DT, to regulate the brightness of display screen according to dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is greater than object brightness LT, or whether current duty cycle DT is greater than maximum duty cycle DTmax; If so, then current duty cycle DT is reduced, to regulate the brightness of display screen according to dutycycle; If not, then current duty cycle DT is increased, to regulate the brightness of display screen according to dutycycle.
Preferably, the span of the regulated quantity of described adjustment dutycycle DT is 5% ~ 15%.
Preferably, described collection current environment brightness LC comprises:
In Preset Time, gather the ambient brightness that preset times is current, and the ambient brightness of all collections is averaging, obtain last current environment brightness LC.
In addition, for achieving the above object, the invention provides a kind of brightness regulating apparatus of display screen, the light sensor comprising processor and be connected with processor, wherein said processor comprises:
Ambient brightness acquisition module, in the operational process of household electrical appliance, obtains current environment brightness LC;
Brightness dims module, for being less than object brightness LT as current environment brightness LC, and the difference of current environment brightness LC and object brightness LT in default range of adjustment value time, dim the brightness of display screen;
Brightness lightens module, for being greater than object brightness LT as current environment brightness LC, and when the absolute value of the difference of current environment brightness LC and object brightness LT is greater than undulating quantity DF, lightens the brightness of display screen.
Preferably, described brightness dim module for:
By current environment brightness LC assignment to object brightness LT;
Reduce current duty cycle DT, to regulate the brightness of display screen according to this dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is less than object brightness LT, and whether current duty cycle DT is greater than minimum duty cycle DTmin; If so, then return perform described by current environment brightness LC assignment to the step of object brightness LT; Then terminate brightness regulation flow process if not.
Preferably, described brightness lighten module for:
By current environment brightness LC assignment to object brightness LT;
Increase current duty cycle DT, to regulate the brightness of display screen according to dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is greater than object brightness LT, or whether current duty cycle DT is greater than maximum duty cycle DTmax; If so, then current duty cycle DT is reduced, to regulate the brightness of display screen according to dutycycle; If not, then current duty cycle DT is increased, to regulate the brightness of display screen according to dutycycle.
Preferably, the span of the regulated quantity of described adjustment dutycycle DT is 5% ~ 15%.
In addition, for achieving the above object, present invention also offers a kind of air conditioner, comprise display screen, comprise the display screen regulating device of said structure, this display screen regulating device is for gathering current environment brightness, and in conjunction with the brightness of display screen itself and current environment brightness, the brightness of described display screen is regulated.
The embodiment of the present invention is compared by the current environment brightness that detected by light sensor and object brightness, also adjusting condition is set simultaneously, and according to the comparative result of this adjusting condition, current environment brightness and object brightness, regulate the brightness of display screen together, therefore, the embodiment of the present invention, when carrying out the brightness regulation of display screen, has taken into full account the brightness of current environment brightness and display screen itself, avoid display screen to produce halation, make display screen be in best image state.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the brightness adjusting method of display screen of the present invention;
Fig. 2 is the refinement schematic flow sheet of the brightness dimming display screen in the brightness adjusting method of display screen of the present invention;
Fig. 3 is the schematic flow sheet of the refinement of the brightness lightening display screen in the brightness adjusting method of display screen of the present invention;
Fig. 4 is the high-level schematic functional block diagram of the brightness regulating apparatus of display screen of the present invention;
Fig. 5 is the structural representation of air conditioner of the present invention.
In order to make technical scheme of the present invention clearly, understand, be described in further detail below in conjunction with accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Core concept of the present invention is: in household electrical appliance use procedure, the light intensity of Real-time Collection indoor, and in conjunction with the brightness of display screen itself and the light intensity that gathers, regulate the brightness of household electrical appliance display screen, therefore avoid display screen to produce halation, obtain better display effect.
It should be noted that, before the control method implementing this air conditioner, need to arrange light sensor on the indoor set of air conditioner.If the light intensity signal of this light sensor collection is simulating signal, then the control panel of this air conditioner also needs to arrange AD converter, so that this simulating signal is converted to digital signal, for the judgement of Night.If the light intensity signal of this light sensor collection is digital signal, then carries out analog to digital conversion without the need to arranging AD converter, and be directly used in the judgement of Night.
As shown in Figure 1, brightness control method first embodiment of display screen of the present invention is shown.The brightness control method of the display screen of this embodiment can comprise the following steps:
In the operational process of step S110, household electrical appliance, obtain current environment brightness LC;
Step S120, be less than object brightness LT as current environment brightness LC, and the difference of current environment brightness LC and object brightness LT in the range of adjustment value preset time, dim the brightness of display screen;
Step S130, be greater than object brightness LT as current environment brightness LC, and when the absolute value of the difference of current environment brightness LC and object brightness LT is greater than undulating quantity DF, lighten the brightness of display screen.
The present embodiment utilizes the light sensor be arranged on household electrical appliance, gathers indoor ambient brightness, then by AD converter, gathered analoging brightness is converted to digital brightness.In order to make gathered ambient brightness more stable, the method be averaging after employing multi collect is obtained final ambient brightness by the present embodiment.
In above-mentioned steps S120, initial object brightness LT is set to 0.This range of adjustment value preset is: LC-LT<-DF, LC-LT>+DF, wherein DF is predetermined threshold value.The span of this DF is 2 ~ 15, and in the present embodiment, DF is preferably 5.When current environment brightness LC is less than object brightness LT, and when the difference of current environment brightness LC and object brightness LT meets default adjusting condition, then dim the brightness of display screen.When current environment brightness LC is greater than object brightness LT, and when the difference of current environment brightness LC and object brightness LT meets default adjusting condition, lighten the brightness of display screen.When current environment brightness LC equals object brightness LT, or when the difference of current environment brightness LC and object brightness LT does not meet the adjusting condition preset, keep the brightness that display screen is current.
The embodiment of the present invention is compared by the current environment brightness that detected by light sensor and object brightness, also adjusting condition is set simultaneously, and according to the comparative result of this adjusting condition, current environment brightness and object brightness, regulate the brightness of display screen together, therefore, the embodiment of the present invention, when carrying out the brightness regulation of display screen, has taken into full account the brightness of current environment brightness and display screen itself, avoid display screen to produce halation, make display screen be in best image state.
Further, as shown in Figure 2, above-mentioned steps S120 can comprise:
Step S121, by current environment brightness LC assignment to object brightness LT, i.e. LT=LC;
Step S122, reduction current duty cycle DT, to regulate the brightness of display screen according to this dutycycle;
In the present embodiment, a regulated quantity being preset, when needing the brightness dimming display screen, then according to current duty cycle DT0 and regulated quantity △ DT, calculating the dutycycle DT1=DT0-△ DT after obtaining adjustment.Then according to the dutycycle after this adjustment, the brightness of display screen is controlled.
After step S123, time delay preset time t1, gather current environment brightness LC;
After brightness of display screen control, need to the response time of the optical element of display screen, therefore in order to obtain current environment brightness LC exactly, time delay a period of time after adjustment brightness of display screen, then gather current environment brightness LC.
Step S124, judge whether current environment brightness LC is less than object brightness LT, and whether current duty cycle DT is greater than minimum duty cycle DTmin; If so, then return step S121 to continue to perform; If not, then process ends.
Again judge whether current environment brightness LC is still less than object brightness LT, and whether current duty cycle is greater than minimum duty cycle DTmin.Dutycycle when this minimum duty cycle DTmin represents that display screen is the darkest, the value of this minimum duty cycle DTmin can set according to the parameter of display screen, and the present invention will not limit at this.Work as LC<LT, and during DT>DTmin, then return the brightness that step 121 continues adjustment display screen.As LC >=LT, or during DT≤DTmin, equal process ends.
Further, as shown in Figure 3, above-mentioned steps S130 can comprise:
Step S131, by current environment brightness LC assignment to object brightness LT, i.e. LT=LC;
Step S132, increase current duty cycle DT, to regulate the brightness of display screen according to dutycycle;
In the present embodiment, a regulated quantity being preset, when needing the brightness lightening display screen, then according to current duty cycle DT0 and regulated quantity △ DT, calculating the dutycycle DT1=DT0+ △ DT after obtaining adjustment.Then according to the dutycycle after this adjustment, the brightness of display screen is controlled.The span of this regulated quantity △ DT is 5% ~ 15%, and the present embodiment is preferably 8%.
After step S133, time delay preset time t1, gather current environment brightness LC;
After brightness of display screen control, need to the response time of the optical element of display screen, therefore in order to obtain current environment brightness LC exactly, time delay a period of time after adjustment brightness of display screen, then gather current environment brightness LC.
Step S134, judge whether current environment brightness LC is greater than object brightness LT, or whether current duty cycle DT is greater than maximum duty cycle; If so, then step S135 is performed; If not, then step S132 is returned;
Step S135, reduction current duty cycle DT, to regulate the brightness of display screen according to dutycycle, and return step S133.
Relatively current environment brightness LC and object brightness LT, and compare current duty cycle DT and maximum duty cycle DTmax.Dutycycle when this maximum duty cycle DTmax represents that display screen is the brightest, the value of this minimum duty cycle DTmin can set according to the parameter of display screen, and the present invention will not limit at this.When working as LC>LT, or during DT>DTmax, reduce current duty cycle DT, with the brightness according to the Duty ratio control display screen after adjustment.As LC≤LT, and during DT≤DTmax, increase current duty cycle DT, with the brightness according to the Duty ratio control display screen after adjustment.
Further describe with the brilliance control process of four examples to above-mentioned display screen below.
Example 1: the brightness regulation of the start that powers on daytime.
The preferred t1=50mS of this example, the brightest brightness AD value of ambient light is 255, and the brightest brightness AD value of the ambient light that actual user can detect is 200, and this value is the high-high brightness that most of family can collect, and the brightness AD value of minimum brightness is 0.Maximum duty cycle DTmax=100%, minimum duty cycle DTmin=10%, namely the brightness regulation scope of display screen is 10-100%, the dutycycle 10% when display screen is the darkest, the dutycycle 100% when display screen is the brightest.DF fluctuation range selects 5.With the brightest AD value 200 at noon on daytime, the dutycycle of the acquiescence that powers on is 10%, and initial object brightness LT=0 is illustrated, and concrete implementation is as follows:
S1, initialization powers on, and supposes that user starts shooting by day, the current environment brightness LC=200 so collected;
S2, judge that current environment brightness LC is less than object brightness LT and is still greater than object brightness LT, and whether the absolute value of the difference of current environment brightness LC and object brightness LT is greater than DF, namely | and LC-LT|>5; Due to current environment brightness LC=200, it is greater than object brightness LT=0, and the absolute value that current environment brightness LC=200 subtracts the difference of object brightness LT=0 is greater than fluctuation range value DF=5, namely | 0-200|>5, therefore, meet and lighten condition, start to lighten display screen gradually, until current environment brightness LC equals object brightness LT.
Concrete lighten operation and can comprise the following steps:
S21, by current environment brightness LC assignment to object brightness LT, i.e. LT=LC=200;
S22, increases current duty cycle DT, and the dutycycle being namely increased to 15% on 10% basis exports, and herein, the regulated quantity choosing 5% mainly considers that the brightness of the display screen regulated according to this regulated quantity can be able to be detected by light sensor;
S23, after time delay t1=50ms, gathers current environment brightness LC=200;
S24, judge whether current environment brightness LC is greater than object brightness, or whether current duty cycle is greater than maximum duty cycle; Due to current environment brightness LC=200, it equals object brightness LT=200, therefore repeated execution of steps S21-24, until current environment brightness LC is greater than object brightness LT, or when current duty cycle is greater than maximum duty cycle, terminate the brightness regulating display screen, namely now the brightness of this display screen is the brightest.
As from the foregoing, because the brightness value on daytime is 200, even if the brightness of display screen is the brightest, namely dutycycle exports 100%, light sensor also responds to the light sent less than display screen, therefore operated by the display screen that lightens of repeated execution of steps S21-step S24, until the final dutycycle exported is 100%, exit the brightness regulation of display screen.
Example 2: the brightness regulation of turning on light evening.
Other parameter in this example is the same with example 1, and for the brightest AD value 109 of turning on light evening, current duty cycle is 100% to be illustrated, and concrete implementation is as follows:
S3, object brightness LT=200, the current environment brightness LC=109 after the turning on light of collection;
S4, judge that current environment brightness LC is less than object brightness LT and is still greater than object brightness LT, and whether the absolute value of the difference of current environment brightness LC and object brightness LT is greater than DF, namely | and LC-LT|>5; Because current environment brightness LC=109 is less than object brightness LT=200, and the absolute value that current environment brightness LC=109 subtracts the difference of object brightness LT=200 is greater than fluctuation range value DF=5, namely | 109-200|>5, therefore meet and dim condition, start to dim brightness of display screen gradually, until current environment brightness equals object brightness.
Concrete dimmed operation can comprise the following steps:
S41, by current ambient brightness LC assignment to object brightness LT, i.e. LT=LC=109;
S42, reduces dutycycle, and the dutycycle being namely reduced to 95% on 100% basis exports, and the decrement value choosing 5% herein mainly considers that the brightness of display screen reduction by 5% can be detected by light sensor;
S43, after time delay t1=50ms, gathers current environment brightness LC=108;
S44, judge whether current environment brightness is less than object brightness, and whether current duty cycle is greater than minimum duty cycle; Because current environment brightness LC=108 is less than object brightness LT=109, and current duty cycle DT=95% is greater than minimum duty cycle DTmin=10%, then repeated execution of steps 41-step S44, until current environment brightness equals object brightness.
As from the foregoing, because the brightness AD turned on light is 109, if display screen is the brightest display still, the light that this display screen sends will be detected by light sensor, therefore by constantly repeating step S41-step S44, when making the final dutycycle exported be 55%, the light that this display screen sends, can not be detected by light sensor, namely now terminate to reduce the brightness of display screen, display screen arrives final lightness stabilized.
Example 3: the brightness regulation of turning off the light evening.
In this example, other parameter is the same with example 1, brightness AD value 14 the brightest when turning off the light with evening, and dutycycle is 55% to be illustrated, and concrete implementation is as follows:
Step S5, object brightness LT=100, the current environment brightness LC=14 after the turning on light of collection;
Step S6, judge that current environment brightness LC is less than object brightness LT and is still greater than object brightness LT, and whether the absolute value of the difference of current environment brightness LC and object brightness LT is greater than DF, namely | and LC-LT|>5; Because current environment brightness LC=14 is less than object brightness LT=100, and the absolute value that current environment brightness LC=14 subtracts the difference of object brightness LT=100 is greater than fluctuation range value DF=5, namely | 14-100|>5, therefore meet and dim condition, start to dim brightness of display screen gradually, until current environment brightness equals object brightness.
Concrete lighten operation and can comprise the following steps:
S61, by current ambient brightness LC assignment object brightness LT, i.e. LT=LC=14;
S62, reduces output duty cycle value, and the dutycycle being namely reduced to 50% on 55% basis exports, and the decrement value choosing 5% herein mainly considers that the brightness of display screen reduction by 5% can be detected by light sensor;
S63, after time delay t1=50ms, gathers current environment brightness LC=12;
S64, judge whether current environment brightness is less than object brightness, or whether current duty cycle is greater than minimum duty cycle; Because current environment brightness LC=12 is less than object brightness LT=14, then repeated execution of steps S61-step S64, until current environment brightness equals object brightness.
As from the foregoing, because the AD value of current environment brightness when turning off the light is 0, if display screen or the brightness of 55%, the light sent will be detected by light sensor, therefore by after above-mentioned dimmed operation, when the final dutycycle exported is 20%, the light that display screen sends, can not be detected by light sensor, namely terminate to reduce the brightness of display screen, arrive final lightness stabilized.
Example 4: the brightness regulation of turning on light evening.
In example 4, other parameter is the same with example 1, brightness AD value 0 the brightest when turning on light with evening, and dutycycle is 20% to be illustrated, and concrete implementation is as follows:
S7, object brightness LT=0, gather the current environment brightness LC=100 after turning on light.
S8, judge that current environment brightness LC is less than object brightness LT and is still greater than object brightness LT, and whether the absolute value of the difference of current environment brightness LC and object brightness LT is greater than DF, namely | and LC-LT|>5; Because current environment brightness LC=100 is less than object brightness LT=0 and the absolute value that current environment brightness LC=100 subtracts the difference of object brightness LT=0 is greater than fluctuation range value DF=5, namely | 0-100|>5, therefore meet and lighten condition, start to lighten brightness of display screen gradually, until current environment brightness equals object brightness.
Concrete lighten operation and can comprise the following steps:
S81, gives object brightness LT, i.e. LT=LC=100 by current brightness LC;
S82, reduces output duty cycle value, and the dutycycle being namely increased to 25% on 20% basis exports, and the decrement value choosing 5% herein mainly considers that the brightness of display screen reduction by 5% can be detected by light sensor;
S83, after time delay t1=50ms, gathers current environment brightness LC=100;
S84, judge whether current environment brightness is less than object brightness, or whether current duty cycle is greater than minimum duty cycle; Because current environment brightness LC=100 equals object brightness LT=100,
As from the foregoing, because brightness AD when turning on light is 100, when the brightness of display screen is greater than the brightness of dutycycle 55%, the light of display screen can have influence on photosensitive testing result, therefore lightens operation by what repeat, when making the final dutycycle exported be 55%, the light that display screen sends, can not be detected by light sensor, namely terminate to reduce the brightness of display screen, arrive final lightness stabilized.
Accordingly, as shown in Figure 4, a kind of brightness regulating apparatus realizing household electrical appliance display screen of the present invention is shown.This regulating device can comprise processor 1, light sensor 2.Wherein processor 1 is connected with light sensor 2.Processor 1 can comprise:
Ambient brightness acquisition module 110, in the operational process of household electrical appliance, obtains current environment brightness LC;
Brightness dims module 120, for being less than object brightness LT as current environment brightness LC, and the difference of current environment brightness LC and object brightness LT in default range of adjustment value time, dim the brightness of display screen;
Brightness lightens module 130, for being greater than object brightness LT as current environment brightness LC, and when the absolute value of the difference of current environment brightness LC and object brightness LT is greater than undulating quantity DF, lightens the brightness of display screen.
In the present embodiment, above-mentioned ambient brightness acquisition module 110 utilizes the light sensor 2 be arranged on household electrical appliance, gathers indoor ambient brightness, then by AD converter, gathered analoging brightness is converted to digital brightness.In order to make gathered ambient brightness more stable, the method be averaging after employing multi collect is also obtained final ambient brightness by the present embodiment.
The initial target brightness LT of above-mentioned brightness regulation is set to 0.This range of adjustment value preset is: LC-LT<-DF, LC-LT>+DF, wherein DF is predetermined threshold value.The span of this DF is 2 ~ 15, and in the present embodiment, DF is preferably 5.When current environment brightness LC is less than object brightness LT, and when the difference of current environment brightness LC and object brightness LT meets default adjusting condition, then brightness dims the brightness that module 120 starts to dim gradually display screen.When current environment brightness LC is greater than object brightness LT, and when the difference of current environment brightness LC and object brightness LT meets default adjusting condition, then brightness lightens the brightness that module 130 starts to lighten gradually display screen.When current environment brightness LC equals object brightness LT, or when the difference of current environment brightness LC and object brightness LT does not meet the adjusting condition preset, then keep the brightness that display screen is current.
The embodiment of the present invention is compared by the current environment brightness that detected by light sensor and object brightness, also adjusting condition is set simultaneously, and according to the comparative result of this adjusting condition, current environment brightness and object brightness, regulate the brightness of display screen together, therefore, the embodiment of the present invention, when carrying out the brightness regulation of display screen, has taken into full account the brightness of current environment brightness and display screen itself, avoid display screen to produce halation, make display screen be in best image state.
Further, described brightness dim module 120 for:
By current environment brightness LC assignment to object brightness LT;
Reduce current duty cycle DT, to regulate the brightness of display screen according to this dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is less than object brightness LT, and whether current duty cycle DT is greater than minimum duty cycle DTmin; If so, then return perform described by current environment brightness LC assignment to the step of object brightness LT; Then terminate brightness regulation flow process if not.
Further, described brightness lighten module 130 for:
By current environment brightness LC assignment to object brightness LT;
Increase current duty cycle DT, to regulate the brightness of display screen according to dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is greater than object brightness LT, or whether current duty cycle DT is greater than maximum duty cycle DTmax; If so, then current duty cycle DT is reduced, to regulate the brightness of display screen according to dutycycle; If not, then current duty cycle DT is increased, to regulate the brightness of display screen according to dutycycle.
Further, the span of the regulated quantity of described adjustment dutycycle DT be 5% ~ 15%, in the present embodiment, this dutycycle DT regulated quantity be preferably 8%.
In addition, the brightness regulating apparatus of above-mentioned display screen can be applicable in air conditioner.As shown in Figure 5, present invention also offers a kind of air conditioner, comprise display screen 100, comprise the display screen regulating device 200 of said structure, this display screen regulating device 200 is for gathering current environment brightness, and in conjunction with the brightness of display screen itself and current environment brightness, the brightness of described display screen is regulated.Concrete structure and the principle of work of above-mentioned display screen regulating device please refer to described in preceding embodiment.
The embodiment of the present invention is compared by the current environment brightness that detected by light sensor and object brightness, also adjusting condition is set simultaneously, and according to the comparative result of this adjusting condition, current environment brightness and object brightness, regulate the brightness of display screen together, therefore, the embodiment of the present invention, when carrying out the brightness regulation of display screen, has taken into full account the brightness of current environment brightness and display screen itself, avoid display screen to produce halation, make display screen be in best image state.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a brightness adjusting method for display screen, is characterized in that, the brightness adjusting method of described display screen comprises the following steps:
In the operational process of household electrical appliance, obtain current environment brightness LC;
When current environment brightness LC is less than object brightness LT, and the difference of current environment brightness LC and object brightness LT preset range of adjustment value in time, dim the brightness of display screen;
When current environment brightness LC is greater than object brightness LT, and when the absolute value of the difference of current environment brightness LC and object brightness LT is greater than undulating quantity DF, lighten the brightness of display screen.
2. the brightness adjusting method of display screen as claimed in claim 1, is characterized in that, described in dim display screen brightness comprise:
By current environment brightness LC assignment to object brightness LT;
Reduce current duty cycle DT, to regulate the brightness of display screen according to this dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is less than object brightness LT, and whether current duty cycle DT is greater than minimum duty cycle DTmin; If so, then return perform described by current environment brightness LC assignment to the step of object brightness LT; Then terminate brightness regulation flow process if not.
3. the brightness adjusting method of display screen as claimed in claim 1, is characterized in that, described in lighten display screen brightness comprise:
By current environment brightness LC assignment to object brightness LT;
Increase current duty cycle DT, to regulate the brightness of display screen according to dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is greater than object brightness LT, or whether current duty cycle DT is greater than maximum duty cycle DTmax; If so, then current duty cycle DT is reduced, to regulate the brightness of display screen according to dutycycle; If not, then current duty cycle DT is increased, to regulate the brightness of display screen according to dutycycle.
4. the brightness adjusting method of display screen as claimed in claim 2 or claim 3, it is characterized in that, the span of the regulated quantity of described adjustment dutycycle DT is 5% ~ 15%.
5. the brightness adjusting method of the display screen as described in any one of claim 1-3, is characterized in that, described collection current environment brightness LC comprises:
In Preset Time, gather the ambient brightness that preset times is current, and the ambient brightness of all collections is averaging, obtain last current environment brightness LC.
6. a brightness regulating apparatus for display screen, is characterized in that, the light sensor that the brightness regulating apparatus of described display screen comprises processor and is connected with processor, and wherein said processor comprises:
Ambient brightness acquisition module, in the operational process of household electrical appliance, obtains current environment brightness LC;
Brightness dims module, for being less than object brightness LT as current environment brightness LC, and the difference of current environment brightness LC and object brightness LT in default range of adjustment value time, dim the brightness of display screen;
Brightness lightens module, for being greater than object brightness LT as current environment brightness LC, and when the absolute value of the difference of current environment brightness LC and object brightness LT is greater than undulating quantity DF, lightens the brightness of display screen.
7. the brightness regulating apparatus of display screen as claimed in claim 6, is characterized in that, described brightness dim module for:
By current environment brightness LC assignment to object brightness LT;
Reduce current duty cycle DT, to regulate the brightness of display screen according to this dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is less than object brightness LT, and whether current duty cycle DT is greater than minimum duty cycle DTmin; If so, then return perform described by current environment brightness LC assignment to the step of object brightness LT; Then terminate brightness regulation flow process if not.
8. the brightness regulating apparatus of display screen as claimed in claim 6, is characterized in that, described brightness lighten module for:
By current environment brightness LC assignment to object brightness LT;
Increase current duty cycle DT, to regulate the brightness of display screen according to dutycycle;
After time delay preset time t1, gather current environment brightness LC;
Judge whether current environment brightness LC is greater than object brightness LT, or whether current duty cycle DT is greater than maximum duty cycle DTmax; If so, then current duty cycle DT is reduced, to regulate the brightness of display screen according to dutycycle; If not, then current duty cycle DT is increased, to regulate the brightness of display screen according to dutycycle.
9. the brightness regulating apparatus of display screen as claimed in claim 7 or 8, it is characterized in that, the span of the regulated quantity of described adjustment dutycycle DT is 5% ~ 15%.
10. an air conditioner, comprise display screen, it is characterized in that, described air conditioner also comprises display screen regulating device as described in any one of claim 6-9, this display screen regulating device is for gathering current environment brightness, and in conjunction with the brightness of display screen itself and current environment brightness, the brightness of described display screen is regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410856483.5A CN104575446A (en) | 2014-12-31 | 2014-12-31 | Brightness adjustment method and device of display screen and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410856483.5A CN104575446A (en) | 2014-12-31 | 2014-12-31 | Brightness adjustment method and device of display screen and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104575446A true CN104575446A (en) | 2015-04-29 |
Family
ID=53091358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410856483.5A Pending CN104575446A (en) | 2014-12-31 | 2014-12-31 | Brightness adjustment method and device of display screen and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104575446A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795054A (en) * | 2015-05-13 | 2015-07-22 | 上海斐讯数据通信技术有限公司 | System and method for adjusting brightness automatically |
| CN105972751A (en) * | 2016-04-29 | 2016-09-28 | 广东美的制冷设备有限公司 | Air conditioner and display panel brightness control method thereof |
| CN106710500A (en) * | 2015-11-17 | 2017-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Display control device and display control method for household appliances, and household appliance |
| CN107514680A (en) * | 2017-07-26 | 2017-12-26 | 青岛海尔空调器有限总公司 | Air conditioner room unit |
| CN107978267A (en) * | 2017-11-27 | 2018-05-01 | 苏州惠琪特电子科技有限公司 | A kind of LED display |
| CN108492795A (en) * | 2018-02-23 | 2018-09-04 | 珠海格力电器股份有限公司 | Method and device for adjusting display brightness of air conditioner |
| CN110611800A (en) * | 2019-09-29 | 2019-12-24 | 深圳市火乐科技发展有限公司 | Projection adjusting method and device, projector and projection system |
| CN111179867A (en) * | 2020-01-19 | 2020-05-19 | 追觅科技(上海)有限公司 | Screen brightness control method |
| CN113203174A (en) * | 2021-05-21 | 2021-08-03 | 宁波奥克斯电气股份有限公司 | Air conditioner display brightness control method, air conditioner and computer readable storage medium |
| CN114783391A (en) * | 2022-03-30 | 2022-07-22 | 冠捷电子科技(福建)有限公司 | Medical display terminal for intelligent night display management and management method thereof |
-
2014
- 2014-12-31 CN CN201410856483.5A patent/CN104575446A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795054A (en) * | 2015-05-13 | 2015-07-22 | 上海斐讯数据通信技术有限公司 | System and method for adjusting brightness automatically |
| CN106710500A (en) * | 2015-11-17 | 2017-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Display control device and display control method for household appliances, and household appliance |
| CN105972751A (en) * | 2016-04-29 | 2016-09-28 | 广东美的制冷设备有限公司 | Air conditioner and display panel brightness control method thereof |
| CN107514680A (en) * | 2017-07-26 | 2017-12-26 | 青岛海尔空调器有限总公司 | Air conditioner room unit |
| CN107978267A (en) * | 2017-11-27 | 2018-05-01 | 苏州惠琪特电子科技有限公司 | A kind of LED display |
| CN108492795A (en) * | 2018-02-23 | 2018-09-04 | 珠海格力电器股份有限公司 | Method and device for adjusting display brightness of air conditioner |
| CN110611800A (en) * | 2019-09-29 | 2019-12-24 | 深圳市火乐科技发展有限公司 | Projection adjusting method and device, projector and projection system |
| CN110611800B (en) * | 2019-09-29 | 2021-10-19 | 深圳市火乐科技发展有限公司 | Projection adjusting method and device, projector and projection system |
| CN111179867A (en) * | 2020-01-19 | 2020-05-19 | 追觅科技(上海)有限公司 | Screen brightness control method |
| CN111179867B (en) * | 2020-01-19 | 2022-10-21 | 追觅科技(上海)有限公司 | Screen brightness control method |
| CN113203174A (en) * | 2021-05-21 | 2021-08-03 | 宁波奥克斯电气股份有限公司 | Air conditioner display brightness control method, air conditioner and computer readable storage medium |
| CN114783391A (en) * | 2022-03-30 | 2022-07-22 | 冠捷电子科技(福建)有限公司 | Medical display terminal for intelligent night display management and management method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104575446A (en) | Brightness adjustment method and device of display screen and air conditioner | |
| CN103077684B (en) | A kind of backlight adjusting method, device and display screen | |
| JP6067674B2 (en) | Device and method for illumination control of multiple light sources | |
| CN203027526U (en) | Lighting apparatus | |
| CN102612194B (en) | Dimming circuit, control method, micro controller and phase angle detection method for micro controller | |
| CN102573214B (en) | LED drive circuit and LED light device | |
| CN103917002B (en) | LED light-dimming methods and system | |
| CN103796374B (en) | A kind of LED illumination control system and method for work thereof | |
| CN106016590B (en) | A kind of intelligence control system and intelligent control method | |
| CN104469022A (en) | Backlight lamp regulation method and system and handheld terminal | |
| CN201540713U (en) | Ambient photodetection and respond device for LCD element | |
| CN107567153B (en) | System and method for adjusting indoor light | |
| CN202889703U (en) | DC light-modulation type LED drive circuit | |
| CN105208186A (en) | Prompt mode adjusting device, method and mobile terminal | |
| CN105282945B (en) | The control method and control system of a kind of intelligent lighting | |
| CN101872597A (en) | Intelligent luminance control induction method | |
| CN208386765U (en) | Photo infrared ray LED light panel assembly with Internet of Things control ability | |
| CN106163024A (en) | A kind of PWM light-dimming method and PWM light modulating device | |
| CN205066171U (en) | Water heater energy-saving display control system and water heater | |
| CN205546038U (en) | LED self -adaptation dimming control device | |
| CN1722926B (en) | Intelligent LED control system and method | |
| CN110459157B (en) | Kitchen appliance screen display method | |
| CN107885260B (en) | Automatic adjustment method and system | |
| CN106332371A (en) | Control system for adjustable constant illumination in room and method of system | |
| CN105702229A (en) | Mobile terminal backlight brightness adjusting method and system and mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |