CN103634968B - A kind of method and device controlling backlight - Google Patents
A kind of method and device controlling backlight Download PDFInfo
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- CN103634968B CN103634968B CN201210303452.8A CN201210303452A CN103634968B CN 103634968 B CN103634968 B CN 103634968B CN 201210303452 A CN201210303452 A CN 201210303452A CN 103634968 B CN103634968 B CN 103634968B
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Abstract
The invention discloses a kind of method and the device that control backlight, described method comprises: gather the first brightness value that includes the input equipment place environment of at least one button; Judge whether the first brightness value is less than a predetermined luminance value, obtains the first judged result; When the first judged result shows described first brightness value lower than predetermined luminance value, generate a distance and detect instruction; Perform distance and detect instruction, detect the actual distance value between acquisition one operating body and described input equipment; Judge whether actual distance value is less than a predeterminable range value, obtains the second judged result; When actual distance value is less than described predeterminable range value, generate a backlight open instruction; Perform backlight open instruction, open at least one luminescence unit corresponding with at least one button.By the brightness value of testing environment and the distance of operating body and input equipment, automatically control the light on and off of backlight, solve the technical problem that prior art backlight control can not complete automatically.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of method and device controlling backlight.
Background technology
Along with the development of science and technology, various electronic device emerges in an endless stream, and as notebook computer, smart mobile phone etc., substantially increases the quality of life of people, and current people, when using computer, are nearly all select keyboard to complete the input of information.
When user is unfamiliar with keyboard position and light is relatively dark, user needs to enable the corresponding backlight of keyboard, and the control to keyboard back light, need user before this backlight function of use, open backlight by next button or multiple button.
In the process realizing technical scheme in the embodiment of the present application, in discovery prior art when needs control backlight, there is following technical problem in present inventor:
First, the unlatching of keyboard back light needs by opening physical button joint operation, exist can not environmentally in brightness case and user the need of use keyboard, the technical problem of automatic unlatching;
Secondly, multiple physical button joint operation could be opened, and also makes prior art there is the not easy technical problem of operation;
Finally, because the unlatching of keyboard back light can not complete automatically, so, also there is user and use inconvenience, the problem that Consumer's Experience is not good.
Summary of the invention
The embodiment of the present invention provides a kind of method and the device that control backlight, for solve that prior art exists can not environmentally in brightness case and user the need of use keyboard, the technical problem of automatically opening.
The embodiment of the present application provides a kind of method controlling backlight, and described method comprises:
Gather the first brightness value that includes the input equipment place environment of at least one button;
Judge whether described first brightness value is less than a predetermined luminance value, obtains the first judged result;
When described first judged result shows described first brightness value lower than described predetermined luminance value, generate a distance and detect instruction;
Perform described distance and detect instruction, detect the actual distance value between acquisition one operating body and described input equipment;
Judge whether described actual distance value is less than a predeterminable range value, obtains the second judged result;
When described actual distance value is less than described predeterminable range value, generate a backlight open instruction;
Perform described backlight open instruction, inquiry obtains the monochrome information corresponding with described actual distance value;
Based on described monochrome information, open at least one luminescence unit corresponding with at least one button described, make the brightness of described luminescence unit luminescence be the brightness that described monochrome information identifies.
Optionally, described collection one includes the first brightness value of the input equipment place environment of at least one button, is specially:
Gather infrared ray or ultraviolet that one includes the input equipment place environment of at least one button;
Described infrared ray or described ultraviolet intensity are converted into electrical signal intensity, and described electrical signal intensity can identify the first brightness value of described environment.
Optionally, the actual distance value between described detection acquisition one operating body and described input equipment is specially:
The actual distance value obtained in preset range between described operating body and described input equipment is detected by a Proximity Sensor.
Optionally, after opening at least one luminescence unit corresponding with at least one button described, also comprise:
Detect described input unit in preset time period and whether have input operation, obtain a testing result;
If testing result is nothing, close at least one luminescence unit corresponding with at least one button described.
The embodiment of the present application is a kind of device controlling backlight also, and described control back lighting device comprises:
Light acquisition module, for gathering the first brightness value that includes the input equipment place environment of at least one button;
First control module, be connected with described light acquisition module, for judging whether described first brightness value is less than a predetermined luminance value, obtains the first judged result, when described first judged result shows described first brightness value lower than described predetermined luminance value, generate a distance and detect instruction;
Distance detection module, is connected with described first control module, detecting instruction, detecting the actual distance value between acquisition one operating body and described input equipment for performing described distance;
Second control module, be connected with described distance detection module, judge whether described actual distance value is less than a predeterminable range value, obtain the second judged result, when described actual distance value is less than described predeterminable range value, generate a backlight open instruction, inquiry obtains the monochrome information corresponding with described actual distance value, open at least one luminescence unit corresponding with at least one button described, make the brightness of described luminescence unit luminescence be the brightness that described monochrome information identifies.
Optionally, described light acquisition module is specially a light sensor, for gathering infrared ray or the ultraviolet of described input equipment place environment, and described infrared ray or described ultraviolet intensity are converted into electrical signal intensity, to identify the first brightness value of described environment.
Optionally, described distance detection module is specially a Proximity Sensor, for detecting the actual distance value obtained in preset range between described operating body and described input equipment.
Optionally, also comprise an input results detection module, be connected with described input equipment, for after opening at least one luminescence unit corresponding with at least one button described, detect described input equipment in preset time period and whether have input operation, if testing result is without input operation, close at least one luminescence unit corresponding with at least one button described.
Above-mentioned one or more technical scheme in the embodiment of the present application, at least has one or more technique effects following:
1, the opening and closing by adopting light and range sensor automatically to control backlight, solve prior art can not environmentally in brightness case and user the need of use keyboard, the technical problem of automatic unlatching, reach the technique effect of backlight control automation, improve the intelligence degree of electronic equipment, Consumer's Experience more.
2, owing to adopting light and range sensor to make backlight control automation, solve prior art and jointly control backlight because using multiple physical button, and the backlight control operation occurred is not easy to for remembering, operating not easy technical problem, improve the efficiency of backlight control.
3, in the process used, the backlight of the application's input equipment enough closely has when input purpose at the enough dark and user distance input equipment of light to open input equipment backlight, all the other time backlights are in closed condition, reach the technique effect of power saving.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart controlling the method for backlight in the embodiment of the present application one;
Fig. 2 is a kind of module map controlling the device of backlight in the embodiment of the present application two.
Embodiment
In order to better understand the technical scheme of the application, for backlight keyboard as input equipment in following the embodiment of the present application, in conjunction with Figure of description and embodiment, technical scheme is described in detail.Obviously; for those of ordinary skill in the art; this input equipment is not limited to backlight keyboard; also can be the input equipment such as backlight mouse, ATM backlight key; as long as other input equipments with backlight function that those of ordinary skill in the art can expect based on the backlight keyboard mentioned in the application, all belong to the claimed scope of the application.
The embodiment of the present application provides a kind of method and the device that control backlight, solve prior art exist can not environmentally in brightness case and user the need of use keyboard, the technical problem of automatic unlatching, the control achieving backlight is completed automatically by transducer and control appliance, make the use of whole electronic equipment more intelligent, improve Consumer's Experience.
Technical scheme in the embodiment of the present application is for solving the problem, and general thought is as follows:
Generally need first feature of opening when light is darker according to keyboard back light, and user when using keyboard from closer the second feature of the distance of keyboard, the application has increased light collection and distance detection function newly to backlight keyboard.The light gathering keyboard place environment also transforms and obtains corresponding brightness value, the bright-dark degree of keyboard place environment is judged according to brightness value, if when dark, user needs to open distance that keyboard back light detects an operating body and the keyboard so further distance as user's hand and keyboard, when the actual range of operating body and keyboard enough closely then opens keyboard back light.When so when light is darker, user needs to use keyboard, keyboard back light can be opened automatically, user is not needed to press any physical button, solve prior art exist can not environmentally in brightness case and user the need of use keyboard, the technical problem of automatic unlatching, makes the automatic unlatching of keyboard back light, and then compares prior art, more intelligent, improve Consumer's Experience.
Below in conjunction with accompanying drawing, the main of the embodiment of the present application technical scheme is realized principle, embodiment and be explained in detail the beneficial effect that should be able to reach.
Embodiment one:
Please refer to Fig. 1, the embodiment of the present application provides a kind of method controlling backlight, comprising:
S101: gather the first brightness value that includes the input equipment place environment of at least one button.
The mode of the brightness value in measurement environment is varied, in embodiments of the present invention can by gathering the brightness value of infrared ray in environment and ultraviolet mode determination environment., specifically, the implementation procedure that described collection one includes the first brightness value of the input equipment place environment of at least one button can be:
First, infrared ray or the ultraviolet that includes the input equipment place environment of at least one button is gathered;
Then, described infrared ray or described ultraviolet intensity are converted into electrical signal intensity, utilize described electrical signal intensity to identify the first brightness value of described environment.
In order to make the first brightness value of obtaining more accurate, can select inside that the light sensor of high precision photoelectric pipe is housed, a reverse fixing pressure is applied to photoelectric tube two ends, make to collect any light particularly infrared ray and ultraviolet, photoelectric tube will discharge electronics, when intensity of illumination is higher, the electric current of photoelectric tube is also larger, so can judge the light intensity of described environment by transforming the electrical signal intensity obtained.
After execution step S101, the method in the embodiment of the present application enters S102, that is: judge whether described first brightness value is less than a predetermined luminance value, obtains the first judged result.
Clearly observe surroundings for what gather whether bright-dark degree that namely the first brightness value of obtaining identify input equipment place environment can make human eye, need further to confirm.Showing human eye is according to the study generally can see thing clearly in the environment of 30-10000 nit in light luminance value, when light luminance value will fog lower than sight line when 30 nit, so, in the present embodiment, a minimum brightness value human eye can being seen clearly thing is preset as 30 nits, so just described first brightness value and 30 nits can be compared, confirm that described environment is bright or dark.Supposing that step S101 collects first brightness value including the input equipment place environment of at least one button is 20 nits, so judge that obtaining 20 nits is less than 30 nits, obtaining the first judged result is that ambient brightness value around keyboard is lower than predetermined luminance value, and when the first brightness value is 40 nit, so judge to obtain 40 nits and be greater than 30 nits, obtaining the first judged result is that ambient brightness value around keyboard is higher than predetermined luminance value.。
Perform step S103 according to the first judged result that S102 obtains: when described first judged result shows described first brightness value lower than described predetermined luminance value, generate a distance and detect instruction.
In this application, judging not only will consider bright and dark light degree in user is the need of unlatching keyboard back light, also need the actual demand considering user, as: whether really will use keyboard.Specifically, in two kinds of situation:
The first: show that described first brightness value is lower than described predetermined luminance value in the first judged result, but user does not need to use keyboard, at this time, just show to open keyboard back light.
The second, show that described first brightness value is lower than described predetermined luminance value, but user needs to use keyboard in the first judged result, at this time, is just shown to be and needs to open keyboard back light.
In this application, when the second situation meets, a distance will be generated and detect instruction, detect instruction by performing distance, the operating body for operation keyboard can be judged, as hand, and the distance between keyboard.
After generated a distance detection instruction by step S103, the method in the embodiment of the present application continues to perform step S104: perform described distance and detect instruction, the actual distance value between detection acquisition one operating body and described input equipment.
In most of the cases, because user must need to knock or push button when use input equipment, the hand of input equipment and user and the distance of health to exceed certain distance scope, so, by the distance value between input equipment and operating body such as keyboard, effectively can judge whether user maybe will use input equipment.
When detecting the actual distance value between acquisition one operating body and described input equipment, can detect by a Proximity Sensor actual distance value obtained in preset range between described operating body and described input equipment.Proximity Sensor is displacement transducer again, utilize the physical change amount of various element testing object, by this variable quantity is scaled distance, measure the distance displacement from transducer to object, there is sensitive and accurate feature, accuracy and the detection efficiency of actual distance value can be improved.
Specifically, the implementation of step S104 has:
The first: detect with keyboard centerline in the upper area be 20 centimetres, the center of circle being radius by Proximity Sensor, the actual distance value of operating body and keyboard, such as Proximity Sensor probe is arranged on notebook backlight keyboard " H " by keyway, detect with keyboard of notebook computer button " H " for 20 centimetres, the center of circle be radius upper area in the actual distance value of hand and " H ".
The second: detect in keyboard epitaxial region 30 cm range by Proximity Sensor, the actual distance value of operating body and keyboard, such as Proximity Sensor probe is arranged between computer-keyboard " Alt " key and keyboard edge, detects the actual distance value of health and keyboard extension in keyboard extension 30 cm range.
Certainly, technical staff belonging to the application can also adopt alternate manner as required, and at this, the application just schematically illustrates no longer one by one.
Obtain the actual distance value of input equipment and operating body after step S104 after, the method in the embodiment of the present application performs step S105: judge whether described actual distance value is less than a predeterminable range value, obtains the second judged result.
According to the difference of actual detection mode, the setting of predeterminable range value is also different.The first, detect in the upper area be 20 centimetres, the center of circle with keyboard centerline being radius, during the actual distance value of operating body and keyboard, because the distance of operating body hand and keyboard can be smaller, so predeterminable range value can be set to keyboard apart from closer value, as 5 centimetres.The second, detects in keyboard epitaxial region 30 cm range, and during the actual distance value of operating body and keyboard, the distance of health and keyboard allows the distance at proficiency brachium, and therefore predeterminable range can be set to the value far away with keyboard extension, as 20 centimetres.
After step S105, perform step S106: when described actual distance value is less than described predeterminable range value, generate a backlight open instruction, if when the second judged result shows that described actual distance value is more than or equal to described predeterminable range value, stop this operational cycle.
When there being backlight open instruction to generate, S107: perform described backlight open instruction, opens at least one luminescence unit corresponding with at least one button described.
In most of the cases, at least one luminescence unit that at least one button described is corresponding can be Light-Emitting Diode, because LED operation voltage is very low, the low power consumption input equipments such as keyboard use operating current very little being adapted at, the simultaneously shock resistance of light-emitting diode and anti-seismic performance good, be applicable to keyboard type length by the input equipment knocked, make that the reliability of backlight is high, the life-span is long.White light emitting diodes can embed design in keyboard draw-in groove, because each button of keyboard adopts special polymer black part to have good light-proofness, white portion possesses very strong transparency, so when after unlatching high brightness white light emitting diodes, keyboard can be good at illuminating and does not affect surrounding environment.For very convenient the user in processing transactions at night, and household can not be had influence on have a rest.
In order to judge whether user will use input through keyboard really more accurately, before step S106 generates a backlight open instruction, step S104, S105 can be repeated: again detect the second actual distance value between acquisition one operating body and described input equipment; Judge whether described second actual distance value is less than the actual distance value that first time detects acquisition, be less than if judged result is the second actual distance value the actual distance value detected for the first time, show that operating body is close to keyboard, determine that user will use keyboard really, then perform step S107 and open keyboard back light.
In the embodiment of the present application, to opening at least one luminescence unit corresponding with at least one button described, can also inquire about and obtain the monochrome information corresponding with described actual distance value, based on described monochrome information, open at least one luminescence unit corresponding with at least one button described, make the brightness of described luminescence unit luminescence be the brightness that described monochrome information identifies.
Actual distance value as detected is 10 centimetres and is less than predeterminable range value 20 centimetres, the monochrome information that now inquiry obtains actual distance value 10 centimetres corresponding is 100 nits, so opening keyboard back light makes its brightness value be 100 nits, if actual distance value is the brightness of 8 centimetres of so backlights, can be 80 nits.By judging that the distance of human body distance keyboard obtains the distance of user's sight line, when user distance keyboard closely arrives lower than predeterminable range value less, then backlight is turned on, so that user clearly can identify keyboard; When user distance keyboard is comparatively near, but more lower than predeterminable range value, then and backlight weakened, now user also clearly can identify keyboard, to play the technique effect of power saving.
In some cases, user distance keyboard enough closely even leans against on keyboard but user does not input any content, now keyboard back light is in the waste that opening can cause resource always, so the application is after opening at least one luminescence unit corresponding with at least one button described, detect described input unit in preset time period and whether have input operation, obtain a testing result, if testing result is nothing, close at least one luminescence unit corresponding with at least one button described.If Preset Time is 3 minutes, in 3 minutes, user is not by any content of input through keyboard, then automatic closing keyboard backlight, avoids the waste of resource.
Below in conjunction with an actual use procedure, a detailed description is done to the embody rule of the method in the embodiment of the present application:
Suppose user A just one with window but in the room that entirety light is very dim use a notebook computer with backlight keyboard, the brightness value that the light sensor of this backlight keyboard collects keyboard place environment is 25 nits, because 25 nits are less than predetermined luminance value 30 nit, just open distance detection function.Now user A is chatted by notebook computer and friend, when friend to returned information " having a meal? " after, user A just needs to be inputted in the text entry field of QQ software by keyboard " also not have.", when user A stretches out one's hand on keyboard, Proximity Sensor detects in one's hands when being less than predeterminable range 5 centimetres with the actual range of keyboard, then open keyboard back light, and user A " is not also had in input." time can see keyboard clearly." also do not have when user A has inputted." afterwards friend all do not reply always, user A is not also just in any content of input, and now input detection unit detects that 3 minutes internal keyboards are without any input content, and judgement show that keyboard is not used then closing keyboard backlight.
After a period of time, user A opens indoor electricity-saving lamp, and user A is just preparing input in the text entry field of QQ software by keyboard that " you very do, and I has descended Kazakhstan."; because now the electricity-saving lamp of indoor opens by user A; the brightness value that the light sensor of backlight keyboard detects keyboard periphery is that 50 nits are greater than predetermined luminance value 30 nit; then can not open distance detection function; even if now user A uses input through keyboard near keyboard " it seems that you are very busy, I has descended Kazakhstan.", keyboard back light also can not be opened, and avoids the waste of resource.
Method in the embodiment of the present application, at least has following technique effect:
By the opening and closing adopting light and range sensor automatically to control backlight, solve the technical problem that prior art cannot control backlight automatically, reach the technique effect of Automated condtrol; Avoid simultaneously and use physical button to control backlight, physical button is long easily to be occurred the technical problem that button malfunction causes backlight and cannot open improve the reliability of backlight control.Simultaneously because the control of backlight is completed automatically by transducer and control appliance, the use of whole electronic equipment is more intelligent, and Consumer's Experience is better.In the process used, the backlight of the application's input equipment enough closely has when input purpose at the enough dark and user distance input equipment of light to open input equipment backlight, is in closed condition, has good power saving effect during all the other time backlights.
Embodiment two
Please refer to Fig. 2, the embodiment of the present application also provides a kind of device controlling backlight, comprising:
Light acquisition module 201, for gathering the first brightness value that includes the input equipment place environment of at least one button;
First control module 202, be connected with described light acquisition module, for judging whether described first brightness value is less than a predetermined luminance value, obtains the first judged result, when described first judged result shows described first brightness value lower than described predetermined luminance value, generate a distance and detect instruction;
Distance detection module 203, is connected with described first control module, detecting instruction, detecting the actual distance value between acquisition one operating body and described input equipment for performing described distance;
Second control module 204, be connected with described distance detection module, judge whether described actual distance value is less than a predeterminable range value, obtain the second judged result, when determining that described actual distance value is less than described predeterminable range value according to described second judged result, generate a backlight open instruction, open at least one luminescence unit corresponding with at least one button described.
The acquisition module of light described in specific implementation process 201 can be a light sensor, for gathering infrared ray or the ultraviolet of described input equipment place environment, and described infrared ray or described ultraviolet intensity are converted into electrical signal intensity, to identify the first brightness value of described environment.
When the first control module 202 judges to draw the first brightness value of light acquisition module 201 collection acquisition lower than predetermined luminance value, namely, when environment is darker residing for input equipment, the actual distance value of the first operating body and input equipment is detected further by described distance detection module 203.Concrete distance detection module 203 can be a Proximity Sensor, for detecting the actual distance value obtained in preset range between described operating body and described input equipment.
After distance detection module 203 detects and obtains described actual distance value, described second control module 204 is when judging that described actual distance value is less than described predeterminable range value, inquiry obtains the monochrome information corresponding with described actual distance value, open at least one luminescence unit corresponding with at least one button described, make the brightness of described luminescence unit luminescence be the brightness that described monochrome information identifies.Wherein said first control module 202 and described second control module can be same control modules, also can be independently two control modules.
In order to monitor in real time the input operation of input equipment, the device of described control backlight can also comprise an input results detection module, be connected with described input equipment, for after opening at least one luminescence unit corresponding with at least one button described, detect described input equipment in preset time period and whether have input operation, if testing result is without input operation, close at least one luminescence unit corresponding with at least one button described.
Device due to the backlight control in the present embodiment is the method one_to_one corresponding with above-mentioned backlight control, so its concrete course of work has just no longer been specifically described.
By the one or more technical schemes in the embodiment of the present application, following one or more technique effect can be realized:
1, the opening and closing by adopting light and range sensor automatically to control backlight, to solve in prior art can not environmentally in brightness case and user the need of use keyboard, the technical problem of automatic unlatching, reach the technique effect of backlight control automation, improve the intelligence degree of electronic equipment, Consumer's Experience more.
2, owing to adopting light and range sensor to make backlight control automation, solve prior art and jointly control backlight because using multiple physical button, and the backlight control operation occurred is not easy to for remembering, operating not easy technical problem, improve the efficiency of backlight control.
3, in the process used, the backlight of the application's input equipment enough closely has when input purpose at the enough dark and user distance input equipment of light to open input equipment backlight, to be in closed condition during all the other time backlights, to reach the technique effect of power saving.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (8)
1. control a method for backlight, it is characterized in that, comprising:
Gather the first brightness value that includes the input equipment place environment of at least one button;
Judge whether described first brightness value is less than a predetermined luminance value, obtains the first judged result;
When described first judged result shows described first brightness value lower than described predetermined luminance value, generate a distance and detect instruction;
Perform described distance and detect instruction, detect the actual distance value between acquisition one operating body and described input equipment;
Judge whether described actual distance value is less than a predeterminable range value, obtains the second judged result;
When determining that described actual distance value is less than described predeterminable range value according to described second judged result, generate a backlight open instruction;
Perform described backlight open instruction, inquiry obtains the monochrome information corresponding with described actual distance value;
Based on described monochrome information, open at least one luminescence unit corresponding with at least one button described, make the brightness of described luminescence unit luminescence be the brightness that described monochrome information identifies.
2. the method for claim 1, is characterized in that, described collection one includes the first brightness value of the input equipment place environment of at least one button, is specially:
Gather infrared ray or ultraviolet that one includes the input equipment place environment of at least one button;
Described infrared ray or described ultraviolet intensity are converted into electrical signal intensity, and described electrical signal intensity can identify the first brightness value of described environment.
3. method as claimed in claim 2, it is characterized in that, the actual distance value between described detection acquisition one operating body and described input equipment is specially:
The actual distance value obtained in preset range between described operating body and described input equipment is detected by a Proximity Sensor.
4. the method as described in claim arbitrary in claim 1-3, is characterized in that, after opening at least one luminescence unit corresponding with at least one button described, also comprises:
Detect described input equipment in preset time period and whether have input operation, obtain a testing result;
If testing result is nothing, close at least one luminescence unit corresponding with at least one button described.
5. control a device for backlight, it is characterized in that, comprising:
Light acquisition module, for gathering the first brightness value that includes the input equipment place environment of at least one button;
First control module, be connected with described light acquisition module, for judging whether described first brightness value is less than a predetermined luminance value, obtains the first judged result, when described first judged result shows described first brightness value lower than described predetermined luminance value, generate a distance and detect instruction;
Distance detection module, is connected with described first control module, detecting instruction, detecting the actual distance value between acquisition one operating body and described input equipment for performing described distance;
Second control module, be connected with described distance detection module, judge whether described actual distance value is less than a predeterminable range value, obtain the second judged result, when determining that described actual distance value is less than described predeterminable range value according to described second judged result, generate a backlight open instruction, inquiry obtains the monochrome information corresponding with described actual distance value, open at least one luminescence unit corresponding with at least one button described, make the brightness of described luminescence unit luminescence be the brightness that described monochrome information identifies.
6. device as claimed in claim 5, it is characterized in that, described light acquisition module is specially a light sensor, for gathering infrared ray or the ultraviolet of described input equipment place environment, and described infrared ray or described ultraviolet intensity are converted into electrical signal intensity, to identify the first brightness value of described environment.
7. device as claimed in claim 6, is characterized in that, described distance detection module is specially a Proximity Sensor, for detecting the actual distance value obtained in preset range between described operating body and described input equipment.
8. the device as described in claim arbitrary in claim 5-7, it is characterized in that, also comprise an input results detection module, be connected with described input equipment, for after opening at least one luminescence unit corresponding with at least one button described, detect described input equipment in preset time period and whether have input operation, if testing result is without input operation, close at least one luminescence unit corresponding with at least one button described.
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| CN106340272A (en) * | 2016-08-24 | 2017-01-18 | 珠海格力电器股份有限公司 | Electronic device and backlight control method and device thereof |
| CN108377596A (en) * | 2018-03-27 | 2018-08-07 | 无锡睿勤科技有限公司 | Keyboard lamp control device, method and the computer with the device |
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| CN102592564A (en) * | 2011-01-14 | 2012-07-18 | 富泰华工业（深圳）有限公司 | Electronic device and display control method thereof |
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| CN101567171A (en) * | 2008-04-25 | 2009-10-28 | 深圳Tcl新技术有限公司 | Method and system for regulating backlight of liquid crystal display television |
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| CN101765265A (en) * | 2008-12-26 | 2010-06-30 | 英业达股份有限公司 | Keyboard backlight device and control method thereof |
| CN101916551A (en) * | 2010-08-24 | 2010-12-15 | 福建捷联电子有限公司 | Energy-saving display |
| CN102592564A (en) * | 2011-01-14 | 2012-07-18 | 富泰华工业（深圳）有限公司 | Electronic device and display control method thereof |
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