CN105407231A - Backlight brightness control method and system for terminal device - Google Patents
Backlight brightness control method and system for terminal device Download PDFInfo
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- CN105407231A CN105407231A CN201510904681.9A CN201510904681A CN105407231A CN 105407231 A CN105407231 A CN 105407231A CN 201510904681 A CN201510904681 A CN 201510904681A CN 105407231 A CN105407231 A CN 105407231A
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Abstract
The invention discloses a backlight brightness control method and a backlight brightness control system for a terminal device. How to adjust the grade two to which the current terminal device belongs is judged by detecting a current value consumed by the current terminal device at present at set intervals, and comparing difference between the current value at present and the previous current value with a preset current threshold value. According to the backlight brightness control method and device, when the current power consumption is large, only the grad two to which the current backlight brightness belongs is automatically adjusted, and the display is hardly influenced that a user is not prone to find; however, in the aspect of power consumption, current consumed by backlight is greatly reduced, so that heat is reduced, and thereby the terminal device is effectively protected so as to be not prone to damage.
Description
Technical field
The present invention relates to terminal equipment technical field, particularly relate to a kind of backlight brightness control method and system of terminal equipment.
Background technology
The current drain of terminal equipment display screen mainly concentrates in backlight, the backlight illumination of the most frequently used small and exquisite Portable mobile phone the darkest and the brightest between the electric current difference that consumes also have milliampere up to a hundred, and on the electronic equipment that screen is larger, even can reach more than 1 ~ 2 peace; And when the electric current consumed is higher often along with the heating of terminal equipment, if now still do not adjust electric current, then heating can be more and more higher, affect user's use, finally even damage equipment.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, a kind of backlight brightness control method and system of terminal equipment are provided, realize when terminal equipment (especially the terminal equipment of large-screen) current sinking is higher, automatically regulable control is carried out to its backlight illumination, effectively reduce electric current thus alleviate heating.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A backlight brightness control method for terminal equipment, wherein, comprises step:
A, in advance the backlight illumination of described terminal equipment is divided into multiple brightness degree from low to high;
B, every a scheduled time, the output current value of battery in sense terminals equipment, judges whether this output current value detected exceedes pre-determined threshold with the difference of the last output current value detected;
C, when exceeding pre-determined threshold, judge whether the output current value that in terminal equipment, this detects is greater than the last output current value detected, if the backlight illumination then controlling described terminal equipment reduces one-level, then control the backlight illumination elevated by one step of described terminal equipment if not.
The backlight brightness control method of described terminal equipment, wherein, in described steps A:
In advance the backlight illumination of described terminal equipment is set to several one-level grades, and divides several secondary grades in each described one-level grade.
The backlight brightness control method of described terminal equipment, wherein, in described step C, when the backlight illumination controlling described terminal equipment reduces, reduces one-level by secondary grade belonging to current backlight brightness; When the backlight illumination controlling described terminal equipment raises, by secondary grade elevated by one step belonging to current backlight brightness.
The backlight brightness control method of described terminal equipment, wherein, also comprises before described steps A:
A1, pre-set the timer that a timing is the described scheduled time, and open described timer.
The backlight brightness control method of described terminal equipment, wherein, described pre-determined threshold is 100mA.
The backlight brightness control method of described terminal equipment, wherein, the described scheduled time is 10s.
A backlight brightness control system for terminal equipment, wherein, comprising:
Pre-set module, in advance the backlight illumination of described terminal equipment being divided into multiple brightness degree from low to high;
Detect judge module, for every a scheduled time, the output current value of battery in sense terminals equipment, judges whether the difference of the output current value that this output current value detected and last time are detected exceedes pre-determined threshold;
Regulable control module, for when exceeding pre-determined threshold, judge whether the output current value that in terminal equipment, this detects is greater than the last output current value detected, if the backlight illumination then controlling described terminal equipment reduces one-level, then control the backlight illumination elevated by one step of described terminal equipment if not.
The backlight brightness control system of described terminal equipment, wherein, pre-sets module and comprises:
Brightness degree division unit, in advance the backlight illumination of described terminal equipment being set to several one-level grades, and divides several secondary grades in each described one-level grade.
The backlight brightness control system of described terminal equipment, wherein, regulable control module comprises:
First backlight illumination regulon, when the backlight illumination for controlling described terminal equipment reduces, reduces one-level by secondary grade belonging to current backlight brightness;
Second backlight illumination regulon, when the backlight illumination for controlling described terminal equipment raises, by secondary grade elevated by one step belonging to current backlight brightness.
The backlight brightness control system of described terminal equipment, wherein, also comprises: opening timing device module, for pre-setting the timer that a timing is the described scheduled time, and opens described timer.
Beneficial effect: compared with prior art; the backlight brightness control method of terminal equipment provided by the invention; intelligent terminal is made to add new function: when current power consumption is larger, only can to automatically adjust to the secondary grade belonging to current backlight brightness, for display; its impact is very micro-; user not easily discovers, but for power consumption, the electric current of backlight consumption but can be made greatly to reduce; heating is alleviated, thus effective protection terminal equipment is not fragile.
Accompanying drawing explanation
Fig. 1 is the flow chart of the preferred embodiment of the backlight brightness control method of terminal equipment of the present invention;
Fig. 2 is the functional schematic block diagram of the preferred embodiment of the backlight brightness control system of terminal equipment of the present invention.
Embodiment
The backlight brightness control method of a kind of terminal equipment provided by the invention and system, for making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for 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.
Below in conjunction with accompanying drawing, by the description to embodiment, summary of the invention is described further.
Refer to Fig. 1, Fig. 1 is the flow chart of the preferred embodiment of the backlight brightness control method of terminal equipment of the present invention.The backlight brightness control method of described terminal equipment comprises:
Step S101, in advance the backlight illumination of described terminal equipment is divided into multiple brightness degree from low to high.
Described terminal equipment is the intelligent terminal such as iPad, palmtop PC compared with large-screen.In the embodiment of the present invention, in advance the backlight illumination of described terminal equipment is set to several one-level grades, such as, the backlight illumination of terminal equipment is divided 10 one-level grades from low to high successively:
One-level grade 1;
One-level grade 2;
One-level grade 3;
One-level grade 10.
Wherein, when terminal equipment backlight illumination belonging to one-level grade be 1 time, the minimum i.e. backlight illumination of its backlight illumination is the darkest; When terminal equipment backlight illumination belonging to one-level grade be 10 time, the highest i.e. backlight illumination of its backlight illumination is the brightest.
Step S102, every a scheduled time, the output current value of battery in sense terminals equipment, judges whether this output current value detected exceedes pre-determined threshold with the difference of the last output current value detected.
In step S102, need arrange in terminal equipment in advance and store a predetermined threshold value and current threshold, this current threshold is as judging whether the current value of the current consumption of described terminal equipment reaches the current critical value needing to carry out backlight illumination adjustment.Preferably, described predetermined threshold value is 100mA.
Further, before step S101, pre-set the timer that timing is the described scheduled time, and open described timer.Every a scheduled time, the output current value of battery in terminal equipment is detected.Can be detect in real time to the detection of the output current value of terminal equipment present battery, be arranged in several seconds by the scheduled time set by timer, to grasp the power consumption condition of terminal equipment at any time, in real time its backlight illumination is adjusted, thus better protect terminal equipment; Also can the scheduled time of timer be arranged longer, thus save system energy consumption.Preferably, the described scheduled time is set to 10 seconds.
Every 10 seconds to terminal equipment in the current output current value of battery carry out one-time detection, and judge that whether the difference of the output current value that this output current value detected and last time are detected is more than 100mA, namely, the output current value of the battery detected before output current value current for the battery detected is deducted 10 seconds, obtain its difference, described difference and described pre-determined threshold 100mA are compared, thus judges whether to need to regulate the brightness of terminal equipment current backlight.When described difference meets or exceeds described pre-determined threshold 100mA, corresponding adjustment is carried out to the brightness of terminal equipment current backlight, when described difference does not reach described pre-determined threshold 100mA, do not regulate the backlight illumination that terminal equipment is current.With rank, backlight illumination is weighed in the present invention, namely realized the adjustment of backlight illumination by the gray scale raised or reduce backlight illumination.
Step S103, when exceeding pre-determined threshold, judge whether the output current value that in terminal equipment, this detects is greater than the last output current value detected, if the backlight illumination then controlling described terminal equipment reduces one-level, then control the backlight illumination elevated by one step of described terminal equipment if not.
In step S103, when the output current value that this detects meets or exceeds described pre-determined threshold with the difference of the last output current value detected, in one-level rate range, corresponding adjustment is carried out to the backlight illumination of described terminal equipment.This output current value of further judgement is raise or reduce compared to the output current value of last time.
Judge whether the output current value that in terminal equipment, this detects is greater than the last output current value detected, when the output current value that this detects is greater than the last output current value detected, current output current value is raise compared to the output current value of last time.Because current output current value is not only higher than the output current value before 10 seconds, and its difference has reached pre-determined threshold 100mA, therefore the power consumption of present terminal equipment is comparatively large, easily causes terminal equipment to generate heat, need the power consumption reducing present terminal equipment, thus heating is alleviated.Due in the present invention by realizing the adjustment to terminal equipment power consumption to the adjustment of backlight illumination, therefore, when this output current value detected and the difference of the last output current value detected meet or exceed described pre-determined threshold 100mA, and this output current value detected is when being greater than the last output current value detected, the backlight illumination controlling described terminal equipment reduces one-level in one-level rate range belonging to the backlight illumination of present terminal equipment.
When the output current value that this detects is less than the last output current value detected, current output current value is reduce compared to the output current value of last time.Because current output current value is not only lower than the output current value before 10 seconds, and its difference has reached pre-determined threshold 100mA, therefore the power consumption of present terminal equipment is lower, screen backlight brightness is darker, user uses the discomfort easily causing eyes during affiliated terminal equipment, needs the backlight illumination elevated by one step in one-level rate range belonging to the backlight illumination of present terminal equipment controlling described terminal equipment.
Preferably, in one-level grade belonging to backlight illumination, be divided into 5 brightness secondary grade from low to high.Such as:
One-level grade 1 secondary grade 1;
One-level grade 1 secondary grade 2;
One-level grade 1 secondary grade 3;
One-level grade 1 secondary class 4;
One-level grade 1 secondary class 5;
One-level grade 2 secondary grade 1;
One-level grade 2 secondary class 5;
One-level grade 10 secondary grade 1;
One-level grade 10 secondary grade 2;
One-level grade 10 secondary class 5.
In one-level grade, when secondary grade is 1, the brightness of terminal equipment screen backlight is the darkest, and when secondary grade is 5, the brightness of terminal equipment screen backlight is the brightest.In described step S103, when the backlight illumination controlling described terminal equipment reduces, secondary grade belonging to current backlight brightness is reduced one-level; When the backlight illumination controlling described terminal equipment raises, by secondary grade elevated by one step belonging to current backlight brightness.
Wherein the present invention detects needs adjusting backlight luminance, and when system adjusts automatically to backlight illumination rank, for belonging to its backlight illumination, secondary grade regulates, user cannot manually regulate secondary grade belonging to backlight illumination.The one-level grade of backlight illumination can show arranging in menu, carries out manual adjustments in a menu for user to backlight illumination rank, and actual use in user obviously can find out the change of backlight illumination light and shade to the adjustment of backlight illumination one-level grade.Then backlight illumination change is faint in the adjustment of adjusting backlight luminance secondary grade, and user in use not easily discovers, thus effectively avoids the flickering ophthalmic uncomfortable sense caused to user of terminal equipment screen.
When user manually regulates one-level grade belonging to backlight illumination, secondary grade belonging to backlight illumination all uses the secondary class 5 of corresponding one-level grade.Such as: user to arrange in menu manually one-level grade belonging to backlight illumination is adjusted to one-level class 5 by one-level grade 3 time, current backlight gray scale is one-level class 5 secondary class 5.
When the difference that the current current sinking value of the terminal equipment detected deducts the current value acquisition detected before for 10 seconds meets or exceeds 100mA, present terminal electricity consumption of equipment amount is comparatively large, causes equipment heating, needs backlight illumination to dim, to reduce electric current, heating is alleviated.First terminal equipment obtains secondary grade belonging to current backlight brightness, then automatic secondary grade belonging to current backlight brightness is reduced one-level, if secondary grade belonging to current backlight brightness be minimum one-level and secondary grade 1 time, the backlight illumination of described terminal equipment is not regulated, now can be hotter by mode reminding user present terminal equipment such as dialog boxes, advise by arranging menu, backlight illumination one-level grade being turned down.
Preferably, the present invention not only can regulate to reduce power consumption when terminal equipment is overheated to backlight illumination and alleviate heating, can also detect that present terminal electricity consumption of equipment amount lower i.e. possibility terminal equipment screen intensity is darker, when affecting the reading use of user, automatically backlight illumination is lightened accordingly, make terminal equipment more intelligent, the use of convenient user.Namely, if the difference that the current current sinking value of the terminal equipment detected deducts the current value acquisition detected before for 10 seconds meets or exceeds 100mA, and the current value that the current current sinking value of terminal equipment detected before compared to 10 seconds reduces, then judge that the brightness of present terminal device screen may be excessively dark, secondary grade belonging to the current backlight brightness now obtaining described terminal equipment, and by secondary grade elevated by one step belonging to described current backlight brightness.If secondary grade belonging to current backlight brightness be the superlative degree and secondary class 5 time, the backlight illumination of described terminal equipment is not regulated, now more secretly can causing discomfort to eyes by mode reminding user present terminal device screens such as dialog boxes, advising by arranging menu, backlight illumination one-level grade being heightened.
Further, when the difference that the output current value detected deducts the output current value acquisition detected before for 10 seconds does not reach described pre-determined threshold, the backlight illumination of described terminal equipment is not regulated.
Based on said method embodiment, present invention also offers a kind of backlight brightness control system of terminal equipment, as shown in Figure 2, described system comprises:
Pre-set module 10, in advance the backlight illumination of described terminal equipment being divided into multiple brightness degree from low to high; As detailed above.
Detect judge module 20, for every a scheduled time, the output current value of battery in sense terminals equipment, judges whether the difference of the output current value that this output current value detected and last time are detected exceedes pre-determined threshold; As detailed above.
Regulable control module 30, for when exceeding pre-determined threshold, judge whether the output current value that in terminal equipment, this detects is greater than the last output current value detected, if the backlight illumination then controlling described terminal equipment reduces one-level, then control the backlight illumination elevated by one step of described terminal equipment if not; As detailed above.
Further, pre-set module described in comprise:
Brightness degree division unit, in advance the backlight illumination of described terminal equipment being set to several one-level grades, and divides several secondary grades in each described one-level grade; As detailed above.
Further, described regulable control module comprises:
First backlight illumination regulon, when the backlight illumination for controlling described terminal equipment reduces, reduces one-level by secondary grade belonging to current backlight brightness; As detailed above.
Second backlight illumination regulon, when the backlight illumination for controlling described terminal equipment raises, by secondary grade elevated by one step belonging to current backlight brightness; As detailed above.
Further, described system also comprises:
Opening timing device module, for pre-setting the timer that a timing is the described scheduled time, and opens described timer; As detailed above.
In sum, the backlight brightness control method of a kind of terminal equipment provided by the present invention and system, detected by the current value every a ticket reserving time to present terminal devices consume, and difference present current value being deducted eve current value and the current threshold preset compare thus judge how to adjust secondary grade belonging to present terminal equipment.The present invention can when current power consumption be larger; only the secondary grade belonging to current backlight brightness is automatically adjusted; for display; its impact is very micro-; user not easily discovers, but for power consumption, the electric current of backlight consumption but can be made greatly to reduce; heating is alleviated, thus effective protection terminal equipment is not fragile.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (10)
1. a backlight brightness control method for terminal equipment, is characterized in that, comprises step:
A, in advance the backlight illumination of described terminal equipment is divided into multiple brightness degree from low to high;
B, every a scheduled time, the output current value of battery in sense terminals equipment, judges whether this output current value detected exceedes pre-determined threshold with the difference of the last output current value detected;
C, when exceeding pre-determined threshold, judge whether the output current value that in terminal equipment, this detects is greater than the last output current value detected, if the backlight illumination then controlling described terminal equipment reduces one-level, then control the backlight illumination elevated by one step of described terminal equipment if not.
2. the backlight brightness control method of terminal equipment according to claim 1, is characterized in that, in described steps A:
In advance the backlight illumination of described terminal equipment is set to several one-level grades, and divides several secondary grades in each described one-level grade.
3. the backlight brightness control method of terminal equipment according to claim 2, is characterized in that, in described step C, when the backlight illumination controlling described terminal equipment reduces, secondary grade belonging to current backlight brightness is reduced one-level; When the backlight illumination controlling described terminal equipment raises, by secondary grade elevated by one step belonging to current backlight brightness.
4. the backlight brightness control method of terminal equipment according to claim 1, is characterized in that, also comprises before described steps A:
A1, pre-set the timer that a timing is the described scheduled time, and open described timer.
5. the backlight brightness control method of terminal equipment according to claim 1, is characterized in that, described pre-determined threshold is 100mA.
6. the backlight brightness control method of terminal equipment according to claim 1, is characterized in that, the described scheduled time is 10s.
7. a backlight brightness control system for terminal equipment, is characterized in that, comprising:
Pre-set module, in advance the backlight illumination of described terminal equipment being divided into multiple brightness degree from low to high;
Detect judge module, for every a scheduled time, the output current value of battery in sense terminals equipment, judges whether the difference of the output current value that this output current value detected and last time are detected exceedes pre-determined threshold;
Regulable control module, for when exceeding pre-determined threshold, judge whether the output current value that in terminal equipment, this detects is greater than the last output current value detected, if the backlight illumination then controlling described terminal equipment reduces one-level, then control the backlight illumination elevated by one step of described terminal equipment if not.
8. the backlight brightness control system of terminal equipment according to claim 7, is characterized in that,
Pre-set module to comprise:
Brightness degree division unit, in advance the backlight illumination of described terminal equipment being set to several one-level grades, and divides several secondary grades in each described one-level grade.
9. the backlight brightness control system of terminal equipment according to claim 8, is characterized in that,
Regulable control module comprises:
First backlight illumination regulon, when the backlight illumination for controlling described terminal equipment reduces, reduces one-level by secondary grade belonging to current backlight brightness;
Second backlight illumination regulon, when the backlight illumination for controlling described terminal equipment raises, by secondary grade elevated by one step belonging to current backlight brightness.
10. the backlight brightness control system of terminal equipment according to claim 7, is characterized in that, also comprises:
Opening timing device module, for pre-setting the timer that a timing is the described scheduled time, and opens described timer.
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| CN201510904681.9A CN105407231B (en) | 2015-12-09 | 2015-12-09 | A kind of backlight brightness control method and system of terminal device |
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| CN201510904681.9A CN105407231B (en) | 2015-12-09 | 2015-12-09 | A kind of backlight brightness control method and system of terminal device |
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| CN105407231B CN105407231B (en) | 2019-02-26 |
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| CN107146581A (en) * | 2017-04-07 | 2017-09-08 | 广东欧珀移动通信有限公司 | Adjust method, mobile terminal and the storage medium of backlight illumination grade |
| CN111524488A (en) * | 2020-04-13 | 2020-08-11 | 广东天波信息技术股份有限公司 | Self-adaptive adjustment method and device for preventing display screen from overheating |
| CN112291633A (en) * | 2019-07-24 | 2021-01-29 | 青岛海信传媒网络技术有限公司 | Method and device for controlling screen brightness of intelligent household equipment |
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