CN102982769B - A kind of method of Automatic adjusument screen appointed area brightness - Google Patents
A kind of method of Automatic adjusument screen appointed area brightness Download PDFInfo
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- CN102982769B CN102982769B CN201210446371.3A CN201210446371A CN102982769B CN 102982769 B CN102982769 B CN 102982769B CN 201210446371 A CN201210446371 A CN 201210446371A CN 102982769 B CN102982769 B CN 102982769B
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Abstract
The invention discloses a kind of method with the appointed area brightness of environment self-adaption adjusting screen, be applied to the mobile terminal with touch display screen curtain, first by obtaining the brightness of the background picture P0 of appointed area in screen, then the brightness of the current residing ambient light of screen is obtained by light sensor, whether the optical light level compared again both them is consistent, if inconsistent, environmentally the brightness of light adjusts background picture P0 and obtains new picture P1, and picture P1 is set to the background picture of appointed area, thus change the brightness of this appointed area.The present invention can make the brightness of screen change have more specific aim, can refine on appointed area, appointed area can be changed along with the change of ambient light, bring the visual experience that user is good.
Description
Technical field
The present invention relates to a kind of method of Automatic adjusument screen intensity, particularly a kind of method that the appointed area brightness of screen is regulated.
Background technology
At present, smart mobile phone is at the future development towards giant-screen, and the brightness of screen affects the experience effect of user to a great extent.Current mobile phone screen is that the overall brightness by adjusting screen controls its display effect mostly, and this method seems too general.When user needs to carry out refinement display for the specific region of some in screen, if or come by the overall brightness adjusting screen, it not only lacks specific aim, nor enough intelligent.
Summary of the invention
In view of this, the invention provides a kind of method of Automatic adjusument screen appointed area brightness, the method can make the brightness of screen light environmentally change and automatically regulate, and can refine on appointed area, greatly promotes Consumer's Experience.
The present invention is achieved by the following technical solutions:
With a method for environment self-adaption adjusting screen appointed area brightness, be applied to the mobile terminal with touch display screen curtain, said method comprising the steps of:
Step 1, in screen, choose appointed area A;
Step 2, initialization process is carried out to appointed area A, obtain the brightness L1 of the background picture P1 of appointed area A;
Step 3, according to brightness L1, determine that its gray scale is D1;
Step 4, obtained the brightness L2 of the current residing ambient light of screen by light sensor;
Step 5, according to brightness L2, determine that its gray scale is D2;
Step 6, judge that whether D1 and D2 is equal, be proceed to step 9, otherwise directly perform next step;
The brightness of step 7, adjustment background picture P1, generates the picture P2 that brightness value is Z;
Step 8, picture P2 replaced background picture P1 as the new background picture of appointed area A, thus change the brightness of appointed area A;
After step 9, stand-by period T, return step 2.
Described step 3 comprises further:
3a, scope 0 ~ M1 according to the brightness value of picture P1, be divided into N number of rank, N be greater than 0 natural number;
3b, according to formula D1=Ceil(X) determine that the gray scale of brightness L1 is D1; Wherein, Ceil() represent the computing that rounds up, X=L1/ (M1/N);
If 3c is L1=0, then make D1=1.
Described step 5 comprises further:
5a, the scope 0 ~ M2 of brightness value that can sense according to light sensor, be divided into K rank, K be greater than 0 natural number, and K=N;
5b, according to formula D2=Ceil(Y) determine that the gray scale of brightness L2 is D2; Wherein, Ceil() represent the computing that rounds up, Y=L2/ (M2/K);
If 5c is L2=0, then make D2=1.
Preferably, in described step 7, according to the brightness value Z determining picture P2 of formula Z=M1* (D2-0.5)/N; Time T described in step 9 is the preset value that can arrange as required, and its scope is 1 ~ 10 S.
Compared with prior art, the invention has the beneficial effects as follows: the brightness of screen can be made to change and have more specific aim, can refine on the region of specifying, its brightness be changed along with the change of ambient light, brings good experience to user.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of method with the appointed area brightness of environment self-adaption adjusting screen, is applied to the mobile terminal with touch display screen curtain, said method comprising the steps of:
Step 1, in screen, choose appointed area A;
Step 2, initialization process is carried out to appointed area A, obtain the brightness L1 of the background picture P1 of appointed area A;
Step 3, according to brightness L1, determine that its gray scale is D1;
Step 4, obtained the brightness L2 of the current residing ambient light of screen by light sensor;
Step 5, according to brightness L2, determine that its gray scale is D2;
Step 6, judge that whether D1 and D2 is equal, be proceed to step 9, otherwise directly perform next step;
The brightness of step 7, adjustment background picture P1, generates the picture P2 that brightness value is Z;
Step 8, picture P2 replaced background picture P1 as the new background picture of appointed area A, thus change the brightness of appointed area A;
After step 9, stand-by period T, return step 2.
Step 3 of the present invention comprises further:
3a, scope 0 ~ M1 according to the brightness value of picture P1, be divided into N number of rank, N be greater than 0 natural number;
3b, according to formula D1=Ceil(X) determine that the gray scale of brightness L1 is D1; Wherein, Ceil() represent the computing that rounds up, X=L1/ (M1/N);
If 3c is L1=0, then make D1=1.
Described step 5 comprises further:
5a, the scope 0 ~ M2 of brightness value that can sense according to light sensor, be divided into K rank, K be greater than 0 natural number, and K=N;
5b, according to formula D2=Ceil(Y) determine that the gray scale of brightness L2 is D2; Wherein, Ceil() represent the computing that rounds up, Y=L2/ (M2/K);
If 5c is L2=0, then make D2=1.
Light sensor can sense the brightness of the light of surrounding environment, and the value of the brightness of its induction has certain scope, supposes that its scope is 0 ~ M2.When light as environment is around the darkest, its brightness value is minimum, if it is 0; When it senses that the light of surrounding environment is the brightest (this is the brightest refers to the brightness that light sensor can sense, the brightness change exceeding this degree then cannot be responded to), now brightness value is maximum, if it is M2.Then be divided into according to its scope (0 ~ M2) gray scale that K rank determines surrounding environment light.The present invention takes to divide intensity level method for distinguishing: according to formula D2=Ceil(Y) determine that its gray scale is D2; Wherein, Ceil() represent the computing that rounds up, Y=L2/ (M2/K), K be greater than 0 natural number, L2 is the brightness that light sensor senses; And as L2=0, then make D2=1.For the division methods of gray scale is described better, suppose M2=100 here, K=10, if the brightness L2=0 that light sensor senses, then its gray scale D2=1; If L2=56, then D2=Ceil(Y)=Ceil(5.6)=6; If L2=100, then D2=Ceil(Y)=Ceil(10)=10 ... the gray scale D2 of surrounding environment light is so determined according to its brightness L2.
In like manner, the gray scale of picture also takes similar division principle, namely according to D1=Ceil(X) determine that its gray scale is D1; Wherein, Ceil() represent the computing that rounds up, X=L1/ (M1/N), N be greater than 0 natural number and N=K, L1 are the brightness that light sensor senses; And as L1=0, then make D1=1.It should be noted that, N=K herein, equal with the K that the above-mentioned brightness value sensed according to light sensor divides gray scale, to make the gray scale that divides according to the value of picture luminance and to sense according to light sensor the gray scale one_to_one corresponding that the value of the brightness of surrounding environment light divides.The value of D1 is identical with the value calculating method of above-mentioned D2, no longer enumerates concrete numerical value to illustrate herein.
Intensity level method for distinguishing is divided according to above, so the value of the brightness of picture P2 should between M1* (D2-1)/N and M1*D2/N, here get its mean value, namely in described step 7, the brightness value Z of picture P2 determines according to formula Z=M1* (D2-0.5)/N.
In step 9, time T is the preset value that can arrange as required, and its time range can need to arrange according to machine performance or user, the desirable 1-10 S of T here.
It should be noted that, the division methods of gray scale is not limited to division methods as above, said method is only a kind of embodiment of the present invention to gray scale division methods, other division methods can also be taked, but need the gray scale divided according to the value of picture luminance and sense according to light sensor the gray scale one_to_one corresponding that the value of the brightness of surrounding environment light divides.
Above content is in conjunction with concrete optimal way further description made for the present invention, should not assert that specific embodiment of the invention is confined to above explanation.For those skilled in the art, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, within the protection domain that the claim that all should be considered as being submitted to by the present invention is determined.
Claims (2)
1., with a method for environment self-adaption adjusting screen appointed area brightness, be applied to the mobile terminal with touch display screen curtain, said method comprising the steps of:
Step 1, in screen, choose appointed area A;
Step 2, initialization process is carried out to appointed area A, obtain the brightness L1 of the background picture P1 of appointed area A;
Step 3, according to brightness L1, determine that its gray scale is D1;
Step 4, obtained the brightness L2 of the current residing ambient light of screen by light sensor;
Step 5, according to brightness L2, determine that its gray scale is D2;
Step 6, judge that whether D1 and D2 is equal, be proceed to step 9, otherwise directly perform next step;
The brightness of step 7, adjustment background picture P1, generates the picture P2 that brightness value is Z;
Step 8, picture P2 replaced background picture P1 as the new background picture of appointed area A, thus change the brightness of appointed area A;
After step 9, stand-by period T, return step 2;
Described step 3 comprises further:
3a, scope 0 ~ M1 according to the brightness value of picture P1, be divided into N number of rank, N be greater than 0 natural number;
3b, according to formula D1=Ceil(X) determine that the gray scale of brightness L1 is D1; Wherein, Ceil() represent the computing that rounds up, X=L1/ (M1/N);
If 3c is L1=0, then make D1=1;
Described step 5 comprises further:
5a, the scope 0 ~ M2 of brightness value that can sense according to light sensor, be divided into K rank, K be greater than 0 natural number, and K=N;
5b, according to formula D2=Ceil(Y) determine that the gray scale of brightness L2 is D2; Wherein, Ceil() represent the computing that rounds up, Y=L2/ (M2/K);
If 5c is L2=0, then make D2=1;
In described step 7, according to the brightness value Z determining picture P2 of formula Z=M1* (D2-0.5)/N.
2. the method with the appointed area brightness of environment self-adaption adjusting screen according to claim 1, is characterized in that: time T described in step 9 is the preset value that can arrange as required, and its scope is 1 ~ 10 S.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103903593B (en) * | 2012-12-27 | 2017-02-22 | 腾讯科技（武汉）有限公司 | Adjustment method of display background of page, and terminal |
| CN103905740B (en) * | 2014-04-17 | 2017-04-19 | 广东欧珀移动通信有限公司 | Method and device for improving automatic exposure effect realized through manual adjustment |
| CN105118436A (en) * | 2015-09-16 | 2015-12-02 | 中国科学院上海高等研究院 | AMOLED display driving circuit and brightness adjustment method |
| CN106201257B (en) * | 2016-06-28 | 2019-04-05 | Oppo广东移动通信有限公司 | Control method, control device and electronic device |
| CN106569770A (en) * | 2016-11-10 | 2017-04-19 | 惠州Tcl移动通信有限公司 | Display background control method and system of mobile terminal, and mobile terminal |
| CN108848265B (en) * | 2018-06-21 | 2021-02-23 | 广东小天才科技有限公司 | Screen brightness adjusting method and device for local area, terminal and storage medium |
| CN110870295B (en) * | 2018-08-30 | 2021-07-02 | 深圳市大疆创新科技有限公司 | Screen brightness adjusting method, shooting device and system |
| CN114285932A (en) * | 2021-12-24 | 2022-04-05 | 电子科技大学 | Screen brightness adjusting method for designated area or designated target |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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