CN103310719A - Automatic detection method and portable electronic device using same - Google Patents
Automatic detection method and portable electronic device using same Download PDFInfo
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- CN103310719A CN103310719A CN2012100657245A CN201210065724A CN103310719A CN 103310719 A CN103310719 A CN 103310719A CN 2012100657245 A CN2012100657245 A CN 2012100657245A CN 201210065724 A CN201210065724 A CN 201210065724A CN 103310719 A CN103310719 A CN 103310719A
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- proximity transducer
- ambient light
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Abstract
The invention relates to a portable electronic device which comprises a backlight module, an ambient light sensor, a proximity sensor and a processing unit, wherein the backlight module can give out light by backlight brightness; the ambient light sensor is used for detecting the ambient light intensity; the proximity sensor is used for detecting an article; the processing unit is used for starting the proximity sensor when the ambient light intensity detected by the ambient light sensor is reduced and exceeds the preset value or preset amplitude, and maintaining or reducing the backlight brightness according to the detection result of the proximity sensor. The invention also provides an automatic detection method.
Description
Technical field
The present invention relates to a kind of sensing device and method for sensing, particularly the portable electron device of a kind of automatic testing method and use the method.
Background technology
Portable electron device becomes product indispensable in the daily life gradually owing to easy to use.Yet the battery capacity that generally is used for portable electron device is limited, and in order to prolong the power-on time of battery, the power consumption that how to reduce device becomes important research topic.
For example comprise in the electronic installation of display panels, the backlight illumination of immediately adjusting described display panels is a kind of effective power save mode.With reference to shown in Figure 1, aforementioned electronic comprises ambient light sensor 91 usually, with the variation for detection of surround lighting, described ambient light sensor 91 is arranged at housing 92 inside of described electronic installation, and described ambient light sensor 91 the place aheads are provided with optical transmission window 93, so that surround lighting can penetrate and be received by described ambient light sensor 91.In order to save the integral body power consumption of described electronic installation, when the surround lighting that detects when described ambient light sensor 91 dies down (for example entering indoor), the backlight illumination of described electronic installation then is lowered simultaneously.Yet under some situation, when described ambient light sensor 91 was covered by object, its detected surround lighting also can die down, if but correspondingly reduce backlight illumination this moment, can cause the display effect variation.
Given this, the present invention proposes a kind of automatic testing method and uses the portable electron device of described method, and it can avoid the situation of mistake control in the above-mentioned known technology.
Summary of the invention
The purpose of this invention is to provide a kind of automatic testing method and the portable electron device that can correctly control adjustment backlight.
Another object of the present invention provides a kind of automatic testing method of the backlight illumination for controlling portable electron device, and wherein said portable electron device comprises ambient light sensor and proximity transducer.
Another object of the present invention provides a kind of automatic testing method of the backlight illumination for controlling mobile phone, and described mobile phone comprises ambient light sensor and proximity transducer.
The invention provides a kind of automatic testing method, this automatic testing method comprises the following step: open ambient light sensor with ambient light; Judge intensity level or the Strength Changes of described surround lighting; With satisfy when described intensity level or described Strength Changes when pre-conditioned, carry out the following step: when described intensity level reduces, open proximity transducer; When described proximity transducer detect object near the time, keep described backlight illumination; With when described proximity transducer does not detect described object, reduce described backlight illumination.
In the above-mentioned automatic testing method, described pre-conditioned for example can be that described intensity level exceeds preset strength value scope or described Strength Changes exceeds default variation range, represent that the variation of described surround lighting is enough to affect display effect this moment, thereby preferably change the backlight illumination of described backlight module.
The present invention also provides a kind of automatic testing method, and this automatic testing method comprises the following step: detect incoming telephone signal; When not detecting described incoming telephone signal, open ambient light sensor with the intensity level of ambient light, and carry out the following step: when described intensity level reduces above preset value or default amplitude, open proximity transducer; When described proximity transducer detect object near the time, keep described backlight illumination; When described proximity transducer does not detect described object, reduce described backlight illumination.When detecting described incoming telephone signal, open simultaneously described ambient light sensor and described proximity transducer, and carry out the following step: when described proximity transducer detect described object near the time, described backlight illumination is made zero; With when described proximity transducer does not detect described object, adjust described backlight illumination according to the described surround lighting that described ambient light sensor detects.
The present invention also provides a kind of portable electron device, comprises backlight module, ambient light sensor, proximity transducer and processing unit.Described backlight module is luminous with backlight illumination.Described ambient light sensor is for detection of ambient light intensity.Described proximity transducer is for detection of object.Described processing unit is used for opening described proximity transducer when described ambient light intensity that described ambient light sensor detects reduces above preset value or default amplitude, and keeps or reduce described backlight illumination according to the testing result of described proximity transducer.
In automatic testing method of the present invention and the portable electron device, by the result who uses the described ambient light sensor of proximity transducer duplicate acknowledgment to detect, can effectively promote the correctness of backlight illumination control.
Description of drawings
Fig. 1 illustrates the schematic diagram of known environment optical sensor.
Fig. 2 illustrates the schematic diagram of the portable electron device of embodiment of the present invention.
Fig. 3 illustrates in the portable electron device of Fig. 2 the cut-open view along III-III ' line.
Fig. 4 illustrates the process flow diagram of the automatic testing method of one embodiment of the present invention.
Fig. 5 illustrates the process flow diagram of the automatic testing method of another embodiment of the present invention.
Description of reference numerals
10 portable electron devices, 11 display units
111 liquid crystal displays, 112 backlight modules
2 detection modules 21,91 ambient light sensors
22 proximity transducers, 23 processing units
24 active light sources, 8 objects
S
11～S
19Step S
21～S
26Step
92 housings, 93 optical transmission windows
Embodiment
For allow above and other objects of the present invention, feature and advantage can be more obvious, hereinafter will cooperate accompanying drawing to elaborate.In explanation of the present invention, identical member illustrates first at this with identical symbolic representation.
With reference to shown in Figure 2, it illustrates the schematic diagram of the portable electron device 10 of embodiment of the present invention, and described portable electron device 10 uses liquid crystal panel as display unit 11; Described portable electron device 10 is such as can being notebook computer, mobile phone, MP3 player and personal digital assistant (PDA) etc., but the present invention is not limited to this.General liquid crystal panel comprises backlight module, the backlight illumination of backlight module described in the present embodiment can be adjusted according to the testing result of detection module 2, for example when surround lighting dies down, then reduce described backlight illumination and consume energy to save integral body, but can utilize two kinds of different sensors to carry out duplicate acknowledgment; When the surround lighting grow, can increase backlight illumination to promote display effect.
With reference to shown in Figure 3, it illustrates in the portable electron device 10 of Fig. 2, along the cut-open view of III-III ' line.Scrutable is that for the purpose that represents, the size of each element and spatial relationship have been done change among Fig. 3.In the present embodiment, described portable electron device 10 comprises display unit 11 and detection module 2.
Described display unit 11 is used for showing image, and it comprises liquid crystal display 111 and backlight module 112, and wherein said backlight module 112 is luminous required backlight when providing described liquid crystal display 111 to show image with backlight illumination; In other words, described liquid crystal display 111 and described backlight module 112 can form display panels.
Described detection module 2 comprises ambient light sensor (ambient light sensor, ALS) 21, one proximity transducer (proximity sensor, PS) 22 and processing unit 23; Scrutablely be that described processing unit 23 can be the processing unit of described portable electron device 10 or processing unit independently.Described ambient light sensor 21 changes for detection of ambient light intensity and ambient light intensity, and testing result is sent to described processing unit 23.Whether described proximity transducer 22 approaches for detection of object 8, and testing result is sent to described processing unit 23; Wherein, the embodiment of described proximity transducer 22 for example comprises condenser type, inductance type, electromagnetic type, optical profile type, microwave type or ultrasonic formula proximity transducer.For example, when described proximity transducer 22 was the optical profile type proximity transducer, described portable electron device 10 preferably also comprised active light source 24, to be used for throwing light on described object 8; Wherein, described object 8 can be any object (being shown as finger herein) that covers described ambient light sensor 21 reception environment light, there is no specific limited, and described active light source 24 can be any suitable light source.
Described processing unit 23 is used for when the described ambient light intensity of described ambient light sensor 21 detections reduces above preset value or default amplitude, open described proximity transducer 22, and keep or reduce the described backlight illumination of described backlight module 112 according to the testing result of described proximity transducer 22; Described processing unit 23 is also exported control signal S according to the testing result of described detection module 2
1Control the action (for example adjust described backlight illumination or close described backlight module 112) of described backlight module 112 and/or control the action (for example closing keypress function and/or touch controllable function) of described portable electron device 10.When described portable electron device 10 was mobile phone, described processing unit 23 also detected incoming telephone signal S at any time
2, and control according to this action of described detection module 2, for example ought detect described incoming telephone signal S
2The time, open simultaneously described ambient light sensor 21 and described proximity transducer 22; And ought not detect described incoming telephone signal S
2The time, only open first described ambient light sensor 21 (after being specified in).
With reference to shown in Figure 4, it illustrates the process flow diagram of the automatic testing method of one embodiment of the present invention, is used for the backlight illumination of control portable electron device, and described portable electron device 10 comprises ambient light sensor 21 and proximity transducer 22.Described automatic testing method comprises the following step: enter original state (step S
11); Open described ambient light sensor with ambient light (step S
12); Judge intensity level B or Strength Changes Δ B (the step S of described surround lighting
13), when described intensity level or described Strength Changes do not satisfy when pre-conditioned, get back to step S
12, when described intensity level or described Strength Changes satisfy describedly when pre-conditioned, carry out the following step: judge described intensity level (step S
14); When described intensity level reduces, open described proximity transducer (step S
15); When described intensity level does not reduce, increase described backlight illumination (step S
16); Judge that whether object is near (step S
17); When described proximity transducer detect object near the time, keep described backlight illumination (step S
18); With when described proximity transducer does not detect described object, reduce described backlight illumination (step S
19).
With reference to Fig. 3 and Fig. 4, the detailed embodiment of each step in the present embodiment is described then simultaneously.
Described portable electron device 10 is in general normal operation state at first, then is referred to as original state (step S herein
11).
Described ambient light sensor (ALS) 21 is unlocked and ambient light constantly; Preferably, described portable electron device 10 under the normal operation state, described ambient light sensor 21 with regular time the interval detect described surround lighting (step S
12), and send testing result to described processing unit 23.
Described processing unit 23 judges whether the intensity level B of the surround lighting that described ambient light sensor 21 detects or Strength Changes Δ B satisfy pre-conditioned (step S
13); Wherein, satisfy described pre-conditioned for example can be that described intensity level exceeds preset strength value scope or described Strength Changes exceeds default variation range.
(step S when processing unit 23 judges that described intensity level exceeds described preset strength value scope or judges that described Strength Changes exceeds described default variation range
14), the variable quantity of expression surround lighting clearly has been enough to affect the display effect of described display unit 11, thereby can carry out the adjustment of backlight illumination.For example, when the intensity level of described surround lighting reduced above preset value or default amplitude, described processing unit 22 was opened described proximity transducer 22 (step S
15) whether carry out the adjustment of backlight illumination with duplicate acknowledgment; Otherwise, when described intensity level does not reduce (intensity level that is described surround lighting increases above preset value or default amplitude), increase described backlight illumination (step S
16) with the lifting display effect, and get back to step S
12On the other hand, when described processing unit 23 judges that described intensity level does not exceed described default value or described Strength Changes and do not exceed described preset range (not satisfying pre-conditioned), must not carry out any adjustment and get back to step S
12
For whether duplicate acknowledgment is adjusted, whether described processing unit 23 then judges object near described proximity transducer 22, that is near described portable electron device 10 (step S
17).When described proximity transducer 22 detect object 8 near the time, the described backlight module 112 of described processing unit 23 controls is kept described backlight illumination, since this moment surround lighting to die down be that described object 8 covers described ambient light sensor 21 and causes, be not to be surround lighting (the step S that really dies down
18); Otherwise, when described proximity transducer 22 does not detect described object 8, the described backlight module 112 of described processing unit 23 controls reduces described backlight illumination, because this moment, surround lighting was really to die down, and can be by reducing described backlight illumination to save power consumption (step S
18).Step S
16, S
18And S
19Execute the rear step S that all gets back to
12
With reference to shown in Figure 5, it illustrates the process flow diagram of the automatic testing method of another embodiment of the present invention, is used for the backlight illumination of control mobile phone; Wherein, described mobile phone comprises described ambient light sensor 21 and described proximity transducer 22 equally.Described automatic testing method comprises the step S of Fig. 4 equally
11～S
19, because mobile phone preferably detects first the control that just begins to carry out described detection module 2 behind the incoming telephone signal, so the automatic testing method of present embodiment also comprises the following step: detection incoming telephone signal (step S
21), wherein when not detecting described incoming telephone signal, only open described ambient light sensor with the intensity level of ambient light, and execution in step S
12～S
19When detecting described incoming telephone signal, execution in step S
22～S
26, comprise: open simultaneously described ambient light sensor and described proximity transducer (step S
22); Judge that whether object is near (step S
23); When described proximity transducer detect object near the time, described backlight illumination is made zero, namely close described backlight module (step S
24); When described proximity transducer does not detect described object, adjust described backlight illumination (step S according to the described surround lighting that described ambient light sensor detects
25); That is, when described surround lighting dies down, reduce described backlight illumination and increase described backlight illumination with the raising display effect to reduce power consumption during when described surround lighting grow, and get back to step S
22Judge that whether described object is away from (step S
26), wherein, when described proximity transducer detect described object away from the time, get back to step S
21, again detect described incoming telephone signal; When described proximity transducer detect described object not away from the time, get back to step S
24, continue described backlight illumination is made zero.Should be noted that step S
21Can be between step S
11With S
12Between or between step S
12With S
13Between.
With reference to Fig. 3 and Fig. 5, the detailed embodiment of each step in the present embodiment is described then simultaneously.
Same, described mobile phone is in general normal operation state at first, then is referred to as original state (step S herein
11).
Described processing unit 23 detects incoming telephone signal S at any time
2(step S
21), when described processing unit 23 does not detect described incoming telephone signal, execution in step S then
12～S
19, and the detailed embodiment of these steps is as Fig. 4 and its related description, therefore repeat no more in this.In brief, when described processing unit 23 does not detect described incoming telephone signal, described processing unit 23 is only opened described ambient light sensor 21 with the intensity level of ambient light, and execution the following step: when described intensity level reduces above preset value or default amplitude, open again described proximity transducer 22; When described proximity transducer 22 detect object 8 near the time, keep described backlight illumination; And when described proximity transducer 22 does not detect described object 8, reduce described backlight illumination.
When described processing unit 23 detects described incoming telephone signal S
2The time, open simultaneously described ambient light sensor (ALS) 21 and described proximity transducer (PS) 22 (step S
22).
Whether described processing unit 23 then judges object near described proximity transducer 22, that is near described mobile phone (step S
23).When described proximity transducer 22 detect described object 8 near the time, the described backlight module 112 of described processing unit 23 controls makes zero described backlight illumination, namely close described backlight module 112 to save power consumption, that is represent that the user has moved to mobile phone in one's ear converse this moment, therefore described processing unit 23 can be closed even keypress function and/or touch controllable function can be closed backlight, to save power consumption and to avoid false touch (step S
24); Otherwise, when described proximity transducer 22 does not detect described object 8, described processing unit 23 is adjusted described backlight illumination according to the described ambient light intensity that described ambient light sensor 21 detects, the user did not move to mobile phone in one's ear and conversed this moment, when the environmental light brightness of described ambient light sensor 21 detections dies down, reduce backlight illumination, when environmental light brightness grow that described ambient light sensor 21 detects, increase backlight illumination (step S
25); Follow repeated execution of steps S
22And S
23To detect user's use state.
When described processing unit 23 detects described incoming telephone signal S
2(step S
21) and described proximity transducer 22 detect described object 8 near (step S
23) and carried out step S
24After, described processing unit 23 judges that also whether described object 8 is away from (step S
26), when described proximity transducer 22 detect described object 8 away from, the expression user finished the conversation, then get back to step S
21, described processing unit 23 detects next time incoming telephone signal again; Otherwise, when described proximity transducer 22 detect described object 8 not away from the time, the expression user still is in the conversation, 23 of described processing units continue described backlight illumination is made zero, to save energy; Certainly, close and to close simultaneously button and touch controllable function the time backlight.
Should be noted that, in the respective embodiments described above, described proximity transducer 22 detect whether objects approach or away from mode according to the model of proximity transducer and different, this part is decided according to user's setting, above-mentionedly only illustrates.
In sum, known electronic is owing to only utilizing ambient light sensor to carry out the detection that surround lighting changes and adjust according to this backlight illumination, when object the situation that mistake is controlled may occur during near described ambient light sensor.The present invention proposes a kind of automatic testing method (Fig. 4 and Fig. 5) and uses the portable electron device (Fig. 2 and Fig. 3) of described method, it can by using the testing result of proximity transducer duplicate acknowledgment ambient light sensor, can effectively promote the correctness of backlight illumination control.
Although the present invention is open with aforementioned embodiments, yet they are not that any the technical staff in the technical field of the invention without departing from the spirit and scope of the present invention, can make various changes or modifications for restriction the present invention.Therefore protection scope of the present invention should be with being as the criterion that appending claims was defined.
Claims (16)
1. automatic testing method is used for the backlight illumination of control portable electron device, and described portable electron device comprises ambient light sensor and proximity transducer, and described automatic testing method comprises the following step:
Open described ambient light sensor with ambient light;
Judge intensity level or the Strength Changes of described surround lighting; And
When described intensity level or described Strength Changes satisfy when pre-conditioned, carry out the following step:
When described intensity level reduces, open described proximity transducer;
When described proximity transducer detect object near the time, keep described backlight illumination; With
When described proximity transducer does not detect described object, reduce described backlight illumination.
2. automatic testing method according to claim 1 wherein satisfies describedly when pre-conditioned when described intensity level or described Strength Changes, and described automatic testing method also comprises: when described intensity level does not reduce, increase described backlight illumination.
3. automatic testing method according to claim 1, wherein said portable electron device is mobile phone.
4. automatic testing method according to claim 3, this automatic testing method also comprises: detect incoming telephone signal.
5. automatic testing method according to claim 4, wherein when detecting described incoming telephone signal, described automatic testing method also comprises:
Open simultaneously described ambient light sensor and described proximity transducer;
When described proximity transducer detect described object near the time, described backlight illumination is made zero;
When described proximity transducer does not detect described object, adjust described backlight illumination according to the described surround lighting that described ambient light sensor detects.
6. automatic testing method according to claim 5, wherein when detect described incoming telephone signal and described proximity transducer detect described object near the time, described automatic testing method also comprises the following step:
When described proximity transducer detect described object away from the time, again detect described incoming telephone signal;
When described proximity transducer detect described object not away from the time, continue described backlight illumination is made zero.
7. automatic testing method is used for the backlight illumination of control mobile phone, and described mobile phone comprises ambient light sensor and proximity transducer, and described automatic testing method comprises the following step:
Detect incoming telephone signal;
When not detecting described incoming telephone signal, open described ambient light sensor with the intensity level of ambient light, and carry out the following step:
When described intensity level reduces above preset value or default amplitude, open described proximity transducer;
When described proximity transducer detect object near the time, keep described backlight illumination; With
When described proximity transducer does not detect described object, reduce described backlight illumination; And
When detecting described incoming telephone signal, open simultaneously described ambient light sensor and described proximity transducer, and carry out the following step:
When described proximity transducer detect described object near the time, described backlight illumination is made zero; With
When described proximity transducer does not detect described object, adjust described backlight illumination according to the described surround lighting that described ambient light sensor detects.
8. automatic testing method according to claim 7, wherein when detect described incoming telephone signal and described proximity transducer detect described object near the time, described automatic testing method also comprises the following step:
When described proximity transducer detect described object away from the time, again detect described incoming telephone signal;
When described proximity transducer detect described object not away from the time, continue described backlight illumination is made zero.
9. automatic testing method according to claim 7, this automatic testing method also comprises:
When described proximity transducer detect described object near the time, close simultaneously keypress function and touch controllable function.
10. portable electron device, this portable electron device comprises:
Backlight module, this backlight module is luminous with backlight illumination;
Ambient light sensor, this ambient light sensor is for detection of ambient light intensity;
Proximity transducer, this proximity transducer is for detection of object; With
Processing unit, this processing unit is used for when the described ambient light intensity of described ambient light sensor detection reduces above preset value or default amplitude, open described proximity transducer, and keep or reduce described backlight illumination according to the testing result of described proximity transducer.
11. portable electron device according to claim 10, wherein when described proximity transducer detect described object near the time, described processing unit is controlled described backlight module and is kept described backlight illumination; When described proximity transducer did not detect described object, described processing unit was controlled described backlight module and is reduced described backlight illumination.
12. portable electron device according to claim 10, wherein said portable electron device are mobile phone.
13. portable electron device according to claim 12, wherein said processing unit also detects incoming telephone signal, when detecting described incoming telephone signal, opens simultaneously described ambient light sensor and described proximity transducer.
14. portable electron device according to claim 13, wherein when described proximity transducer detect described object near the time, described processing unit is closed described backlight module; When described proximity transducer did not detect described object, described processing unit was adjusted described backlight illumination according to the described ambient light intensity that described ambient light sensor detects.
15. portable electron device according to claim 10, wherein said proximity transducer are condenser type, inductance type, electromagnetic type, optical profile type, microwave type or ultrasonic formula proximity transducer.
16. portable electron device according to claim 15, wherein when described proximity transducer was the optical profile type proximity transducer, described portable electron device also comprised active light source, and this active power supply is used for throwing light on described object.
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