CN107948422A - Electronic device - Google Patents
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- CN107948422A CN107948422A CN201711176984.9A CN201711176984A CN107948422A CN 107948422 A CN107948422 A CN 107948422A CN 201711176984 A CN201711176984 A CN 201711176984A CN 107948422 A CN107948422 A CN 107948422A
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- Prior art keywords
- signal
- display screen
- angle
- circuit board
- projector
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the present application provides a kind of electronic device；The electronic device includes display screen, circuit board and the sensor component being arranged on the circuit board；The sensor component and the circuit board are located at the side of the display screen, and the sensor component includes signal projector and signal receiver；The signal projector has a signal surface of emission, and the first angle between the signal surface of emission and circuit board place plane is acute angle；The signal projector emission detection signal, the detectable signal are transferred to the external world through the display screen, and the detectable signal forms reflected signal after external object reflects, and the reflected signal enters the signal receiver by the display screen.The program can improve the accuracy of electronic equipment control display screen state.
Description
Technical field
This application involves technical field of electronic equipment, more particularly to a kind of electronic device.
Background technology
As the electronic equipments such as the development of the communication technology, smart mobile phone are increasingly popularized.In the use of electronic equipment
During, such as in communication process, in order to avoid maloperation of the user to electronic equipment, when user face reaches close to electronic equipment
To after certain distance, electronic equipment can automatic extinguishing screen.
In general, electronic equipment detects the close and remote of user face by proximity sensor, according to the number detected
Screen or bright screen are such as put out according to the display screen state for carrying out control electronics.
The content of the invention
The embodiment of the present application provides a kind of electronic device, can lift the accuracy of display screen state control.
The embodiment of the present application provides a kind of electronic device, including：Display screen, circuit board and it is arranged on the circuit board
Sensor component；
The sensor component and the circuit board are located at the side of the display screen, and the sensor component includes letter
Number transmitter and signal receiver；
The signal projector has a signal surface of emission, between the signal surface of emission and circuit board place plane
The first angle be acute angle；
The signal projector emission detection signal, the detectable signal is transferred to the external world through the display screen, described
Detectable signal forms reflected signal after external object reflects, and the reflected signal enters the signal by the display screen
Receiver.
In electronic device provided by the embodiments of the present application, the signal surface of emission of signal projector and plane where circuit board it
Between angle be acute angle, namely the signal transmitting of signal projector is tilted a certain angle towards signal receiver direction, can be made
Signal projector transmitting signal more arriving signal receiver, enhance signal receiver received signal intensity, into
And the detection accuracy of sensor component is improved, electronic equipment control display screen state is improved as put out screen or bright screen with this
Accuracy.
Brief description of the drawings
In order to illustrate more clearly of the technical solution in the embodiment of the present application, make required in being described below to embodiment
Attached drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the present application, for
For those skilled in the art, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the structure diagram of electronic equipment provided by the embodiments of the present application.
Fig. 2 is another structure diagram of electronic equipment provided by the embodiments of the present application.
Fig. 3 is the first structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Fig. 4 is second of structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Fig. 5 is the third structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Fig. 6 is the 4th kind of structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Fig. 7 is the 5th kind of structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Fig. 8 is the 6th kind of structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Fig. 9 is the 7th kind of structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Figure 10 is the 8th kind of structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Position relationship schematic diagrams of the Figure 11 between signal projector provided by the embodiments of the present application and signal receiver.
Another location relation signals of the Figure 12 between signal projector provided by the embodiments of the present application and signal receiver
Figure.
Another position relationship schematic diagrams of the Figure 13 between provided by the embodiments of the present application transmitter and signal receiver.
Figure 14 is the 9th kind of structure diagram of sensory package in electronic equipment provided by the embodiments of the present application.
Figure 15 is another structure diagram of electronic equipment provided by the embodiments of the present application.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, the technical solution in the embodiment of the present application is carried out clear, complete
Site preparation describes.Obviously, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, the every other implementation that those skilled in the art are obtained without creative efforts
Example, shall fall in the protection scope of this application.
In the description of the present application, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Describe the application and simplify to describe, rather than indicate or imply that signified device or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore it is not intended that limitation to the application.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, " first " is defined, the feature of " second " can be expressed or implicitly includes one or more feature.
In the description of the present application, " multiple " are meant that two or more, unless otherwise specifically defined.
, it is necessary to illustrate in the description of the present application, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection or can mutually communicate；It can be directly connected, can also be by between intermediary
Connect connected, can be the interaction relationship of connection inside two elements or two elements.For the ordinary skill of this area
For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
In this application, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the application.In order to
Simplify disclosure herein, hereinafter the component and setting of specific examples are described.Certainly, they are merely examples, and
And purpose does not lie in limitation the application.In addition, the application can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or setting
Relation.In addition, this application provides various specific techniques and material examples, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
The embodiment of the present application provides a kind of electronic device, which can be electronic equipment etc..
In certain embodiments, this application provides a kind of electronic equipment.The electronic equipment can be smart mobile phone, tablet
Apparatus such as computer.With reference to figure 1, electronic equipment 100 includes cover board 10, display screen 21, circuit board 30, housing 40 and sensor group
Part 50.
Wherein, cover board 10 is installed on display screen 21, to cover display screen 21.Cover board 10 can be transparent glass cover plate.
In certain embodiments, cover board 10 can be with glass cover-plates made of material such as sapphires.
Display screen 21 is installed on housing 40, to form the display surface of electronic equipment 100.Display screen 21 is used as electronic equipment
100 front housing, forms an enclosure space, for accommodating other electronic components of electronic equipment 100 with housing 40.Meanwhile show
Screen 21 forms the display surface of electronic equipment 100, for showing the information such as image, text.
Circuit board 30 is installed on inside housing 40, and circuit board 30 is housed in above-mentioned enclosure space.Circuit board 30 can
Think the mainboard of electronic equipment 100.Earth point is provided with circuit board 30, to realize the ground connection of circuit board 30.On circuit board 30
The functional units such as camera, processor and sensor component 50 can be integrated with.Meanwhile display screen 21 can be electrically connected to
Circuit board 30.
In certain embodiments, it is provided with display control circuit on circuit board 30.The display control circuit is to display screen 21
Electric signal is exported, information is shown with control display screen 21.
Housing 40 is used for the exterior contour for forming electronic equipment 100.The material of housing 40 can be plastics or metal.Housing
40 can be integrally formed.
In certain embodiments, display screen 21 can be displayed in full screen in electronic equipment 100.That is, display screen 21 only includes
Display area, without including non-display area, as shown in Figure 2.
In certain embodiments, as shown in figure 3, sensor component 50 is arranged on circuit board 30, sensor component 50
In the side of display screen 21.
It should be understood that sensor component 50 is arranged on the inner side of display screen 21.Wherein, inner side is referred to from electronic equipment
During 100 external observation, 21 sightless side of display screen.That is, sensor component 50 is located inside electronic equipment 100.
Wherein, sensor component 50 can include signal projector 501 and signal receiver 502.501 He of signal projector
Signal receiver 502 can be disposed on circuit board 30.
It is appreciated that signal projector 501 be arranged on the inner side (namely lower section) of display screen 21, signal receiver 502 is set
Put in the inner side of display screen 21 (namely lower section).Wherein, inner side (or lower section) refers to the external observation from electronic equipment 100
When, 21 sightless side of display screen (or a side).
Signal projector 501 has a signal surface of emission 5010, and signal projector 501 is launched by the signal surface of emission 5010
Detectable signal.When detectable signal is optical signal, which is light-emitting surface.
The first angle α between 30 place plane of the signal surface of emission 5010 and the circuit board is acute angle, namely the first folder
The angle value of angle α is between 0 degree to 90 degree.
It is appreciated that：Signal projector 501 can be tilted relative to conventional design to 502 direction of signal receiver
Certain angle, i.e. α angles.
Wherein, the angle between 30 place plane of the signal surface of emission 5010 and the circuit board be the signal surface of emission 5010 with
The 30 place plane of circuit board is crossed to form minimum positive angle.
Signal projector 501 by the outside emission detection signal A of the signal surface of emission 5010, (in practical application, launch by signal
Device 502 is according to the outside emission detection signal A in its signal tranmitting frequency interval), detectable signal A is transferred to outer through display screen 21
Boundary, detectable signal A generate reflected signal B after external object 200 (for example, user face).Reflected signal B is through display
Shield in 21 entering signal receivers 502.
In certain embodiments, in order to further lifted sensor component 50 detection accuracy, the signal surface of emission 5010
The angle value of the first angle α between the 30 place plane of circuit board can be between 40 degree to 90 degree.
By actual repeatedly test, when the angle value of the first angle α is when between 40 degree to 90 degree, signal receiver 502
Optimal to the reception of detectable signal, most of detectable signal that signal projector 501 is launched can reach letter by reflection
Number receiver 502.
In certain embodiments, with reference to figure 4, the gap between signal projector 501 and circuit board 30 is equipped with filler
60, which can be the materials such as foam, can so make it that signal projector 50 and the fixation of circuit board 30 are more stable.
In certain embodiments, with reference to figure 5, the signal surface of emission 5010 of signal projector 501 can be an inclined-plane.
Since the angle between plane where the signal surface of emission and circuit board of, signal projector 501 is acute angle, Ye Jixin
The signal surface of emission 5010 of number transmitter 501 is tilted a certain angle to 502 direction of signal receiver, can cause signal projector
The signals of 501 transmittings are easier or more arriving signal receiver 502, and it is strong to enhance signal receiver received signal
Degree, and then the detection accuracy of sensor component 50 is improved, 100 control display screen state of electronic equipment is improved with this and such as puts out screen
Or the accuracy of bright screen.
In addition, the detectable signal direction of the launch of signal projector 501 and 21 out of plumb of display screen, i.e., the signal direction of the launch and
21 light direction of display screen staggers, and then can reduce influence or interference that detectable signal shows display screen 21, improves aobvious
The display effect of display screen 21.
In certain embodiments, as shown in fig. 6, signal receiver 502 has a signal receiving plane 5020, believe for receiving
The detectable signal that number transmitter 501 is launched.Wherein, the second folder between 30 place plane of the signal receiving plane 5020 and circuit board
Angle beta is acute angle.Namely second angle β angle value between 0 degree to 90 degree.
It is appreciated that signal receiver 502 can tilt certain relative to conventional design to 501 direction of signal projector
Angle beta.That is, signal projector 501 and the certain angle of 502 opposite tilt of signal receiver.
In certain embodiments, filler 70 is equipped with reference to figure 7, signal receiver 502 and the gap of circuit board 30, this is filled out
It can be the materials such as foam to fill thing 70.It can so make it that signal receiver 502 and the fixation of circuit board 30 are more stable.
In certain embodiments, in order to further lifted sensor component 50 detection accuracy, signal receiver 502 with
The angle value of the second angle β between the 30 place plane of circuit board can be between 40 degree to 90 degree.
By actual repeatedly test, when the angle value of the second angle β is when between 40 degree to 90 degree, signal receiver 502
Optimal to the reception of detectable signal, signal receiver 502 can receive the detectable signal largely reflected.
In certain embodiments, the first angle α can be equal with the second angle β, namely signal projector 501 connects with signal
Receive the identical angle of 502 opposite tilt of device.
, can be to avoid signal projector due to the angle identical with 502 opposite tilt of signal receiver of signal projector 501
The detectable signal of 501 transmittings is spent because of angle of reflection does not reach signal receiver 502, while reduces detectable signal in display screen 21
The influence of inner side diffraction, improves the proximity test accuracy of sensor component 50, and then improves the control of display screen state
Accuracy, and facilitate the spatial design and layout of electronic equipment 100.
In certain embodiments, the first angle α can be unequal with the angle value of the second angle β, through excessive actual test,
The angle value of the first angle α and the second angle β can it is unequal in the case of, between the second angle β and first angle α
Differential seat angle between 0 degree to 15 degree.
In certain embodiments, the angle of the second angle β is more than the first angle α, such as, α=50 °, β=60 °, at this time,
The two angle difference is for 10 ° between 0 ° to 15 °.
In certain embodiments, the angle of the second angle β is less than the first angle α, such as, α=70 °, β=58 °, at this time,
The two angle difference is for 12 ° between 0 ° to 15 °.
In certain embodiments, with reference to figure 8, the signal receiving plane 5020 of signal receiver 502 can be an inclined-plane.
Since the signal surface of emission 5010 of signal projector 501 and the signal receiving plane 5020 of signal receiver 502 are opposite
Different angle is tilted, and differential seat angle is within the specific limits, can cause the detectable signal of the transmitting of signal projector 501 more
More ground arriving signal receiver 502, while detectable signal can also be reduced (such as diffraction is led in the influence of 21 inner side diffraction of display screen
Cause 502 full scale of signal receiver), the proximity test accuracy of sensor component 50 is improved, and then improve display screen shape
The accuracy of state control.
The inclination of the signal surface of emission 5010 in view of signal projector 501 can cause detectable signal to be directly over display screen 21
Inner side diffraction entering signal receiver 502, the meeting full scale of signal receiver 502, causes signal detection inaccurate.
In certain embodiments, for the accuracy of promotion signal detection, can be received in signal projector 501 and signal
One protuberance is set between device 502 to stop or isolate diffracted signal, lifts the signal detection accuracy of sensor component 50.Ginseng
Fig. 9 is examined, there is a protuberance 301 on the circuit board 30, the signal projector 501 is distinguished with the signal receiver 502
Positioned at the both sides of the protuberance 301.
In certain embodiments, 301 one end of protuberance can extend to display screen 21 towards the side of sensor component 50.
The isolation effect of diffracted signal can so be lifted.
In certain embodiments, the signal projector 501 is infrared transmitter, for launching infrared ray.The signal
Receiver 502 is infrared remote receiver, for receiving infrared-ray.
In certain embodiments, display screen 21 can be liquid crystal display (Liquid Crystal Display, LCD) or
The display screen of the types such as organic light-emitting diode (OLED) display screen (Organic Light-Emitting Diode, OLED).Work as display
Screen 21 when be liquid crystal display display screen 21 can including be cascading backlight, down polaroid, array base palte, liquid crystal
The structures such as layer, color membrane substrates and upper polaroid.When display screen 21 is organic light-emitting diode (OLED) display screen, display screen 21 can be with
Including structures such as the basic unit, anode, organic layer, conductive layer, emission layer and the cathodes that are cascading.
In certain embodiments, with reference to figure 10, sensor component 50 can also include being arranged on 21 side of display screen
Ambient light sensor 503, it will be understood that ambient light sensor 503 is located at the inner side of display screen 21.The ambient light sensor
503 are used to sense external environment optical signal.Light sensation information can be transferred to processor, processor base by ambient light sensor 503
In the brightness of light sensation information control display screen 21.
Wherein, the photosurface of ambient light sensor 503 can be towards display screen 21, specifically, towards the aobvious of display screen 21
Show region.External environment optical signal enters ambient light sensor 501 by display screen 21.
In certain embodiments, signal projector 501 and signal receiver 502 are included with reference to figure 11, sensor component 50.
Wherein, signal projector 501, signal receiver 502 are intervally installed.Between signal projector 501 and signal receiver 502
Distance d be 2 to 14 millimeters.It should be understood that above-mentioned distance is the geometric center and signal receiver of signal projector 501
The distance between 502 geometric center.Signal projector 501 and signal receiver 502 are intervally installed and can improve signal
Isolation between transmitter 501 and signal receiver 502, reduces the signal of the transmitting of signal projector 501 to signal receiver
Influence caused by 502.
In certain embodiments, it is packaged into chip 25 with reference to figure 12, signal projector 501 and signal receiver 502.
In certain embodiments, with reference to figure 13, sensor component 50 include signal projector 501, signal receiver 502 with
And ambient light sensor 503.Wherein, ambient light sensor 503 is used to detect ambient light intensity.Electronic equipment 100 can basis
The ambient light intensity that ambient light sensor 503 detects adjusts the brightness of display screen 21.Wherein, signal projector 501, signal
Receiver 502 and ambient light sensor 503 can be packaged into chip 26.
Signal projector 501, signal receiver 502 and ambient light sensor 503 are intervally installed.Signal projector
The distance between 501 and signal receiver 502 d are 2 to 14 millimeters.It should be understood that above-mentioned distance is signal projector 501
The distance between geometric center and the geometric center of signal receiver 502.Signal projector 501, signal receiver 502 and ring
Signal projector 501, signal receiver 502 and ambient light can be improved by, which being intervally installed between border optical sensor 503, passes
Isolation between sensor 503, reduces the signal of the transmitting of signal projector 501 to signal receiver 502, ambient light sensor
Influence caused by 503.
In certain embodiments, light shield layer 210 is equipped with towards the side of sensor component 50 with reference to figure 14, display screen 21,
Perforate 213 on light shield layer 210, perforate 213 allow the signals such as optical signal, acoustic signals to pass through.Light shield layer 210 is used to hide electronics
The internal structure of equipment 100, avoids user from passing through display screen 21 and observe the internal electronic element of electronic equipment 100.
In certain embodiments, light shield layer 210 can be the laminate structure made by the materials such as foam or steel disc.
Wherein, signal projector 501 is used for outside emission detection signal A.Detectable signal A passes through perforate 213 and display
Screen 21 is transferred to the external world.After detectable signal A touches external object 200 (for example, user face), reflected signal B is generated.Reflection
Signal B passes through in 213 entering signal receiver 502 of display screen 21 and perforate.
In certain embodiments, as shown in figure 15, display screen 21 includes display area 215 and non-display area 216.Its
In, display area 215 performs the display function of display screen 21, for showing information.Non-display area 216 does not show information.It is aobvious
Display screen 21 can include multiple non-display areas 216 being spaced.For example, set respectively in the top and bottom of display screen 21
There is non-display area 216.Non-display area 216 can be used for setting the functional units such as camera, receiver and fingerprint module.
Wherein, the perforate 213 set on the light shield layer 210 of display screen 21 is located in the display area 215 of display screen 21.It is logical
Cross the perforate 213, sensor component 50 be can be achieved electronic equipment 100 close to inducing function, without in display screen
21 non-display area is separately provided perforate.
In certain embodiments, the perforate 213 is circular hole.213 a diameter of 2 to 4 millimeters of the perforate.Some other
In embodiment, the perforate 213 can also be the hole of the other shapes such as square hole, elliptical aperture.
Electronic device provided by the embodiments of the present application is described in detail above, specific case pair used herein
The principle and embodiment of the application is set forth, and the explanation of above example is only intended to help to understand the application.Meanwhile
For those skilled in the art, according to the thought of the application, change is had in specific embodiments and applications
Place, in conclusion this specification content should not be construed as the limitation to the application.
Claims (10)
1. a kind of electronic device, it is characterised in that including display screen, circuit board and the sensor being arranged on the circuit board
Component；
The sensor component and the circuit board are located at the side of the display screen, and the sensor component is sent out including signal
Emitter and signal receiver；
The signal projector has a signal surface of emission, and the between plane where the signal surface of emission and the circuit board
One angle is acute angle；
The signal projector emission detection signal, the detectable signal are transferred to the external world, the detection through the display screen
Signal forms reflected signal after external object reflects, and the reflected signal is received by the display screen into the signal
Device.
2. electronic device as claimed in claim 1, it is characterised in that the signal receiver has a signal receiving plane, institute
The second angle between plane where stating signal receiving plane and the circuit board is acute angle.
3. electronic device as claimed in claim 2, it is characterised in that first angle is equal with second angle.
4. electronic device as claimed in claim 2, it is characterised in that the angle between second angle and first angle
Difference is spent between 0 degree to 15 degree.
5. electronic device as claimed in claim 1, it is characterised in that the angle value of first angle 40 degree to 90 degree it
Between.
6. electronic device as claimed in claim 1, it is characterised in that between the signal projector and the signal receiver
Distance between 2 to 14 millimeters.
7. such as claim 1-6 any one of them electronic devices, it is characterised in that there is a protuberance on the circuit board,
The signal projector is located at the both sides of the protuberance with the signal receiver respectively.
8. such as claim 1-6 any one of them electronic devices, it is characterised in that the display screen is towards the sensor group
Part side is provided with light shield layer；The light shield layer sets perforate；
The signal projector emission detection signal, the detectable signal are transferred to outer through the perforate and the display screen
Boundary, the detectable signal form reflected signal after external object reflects, and the reflected signal passes through the perforate and institute
State display screen and enter the signal receiver.
9. such as claim 1-6 any one of them electronic devices, it is characterised in that the sensor component further includes ambient light
Sensor, the ambient light sensor are used to sense external environment optical signal.
10. such as claim 1-6 any one of them electronic devices, it is characterised in that further include housing；The display screen, institute
State circuit board and the sensor component is installed in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711176984.9A CN107948422A (en) | 2017-11-22 | 2017-11-22 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711176984.9A CN107948422A (en) | 2017-11-22 | 2017-11-22 | Electronic device |
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| Publication Number | Publication Date |
|---|---|
| CN107948422A true CN107948422A (en) | 2018-04-20 |
Family
ID=61929899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711176984.9A Pending CN107948422A (en) | 2017-11-22 | 2017-11-22 | Electronic device |
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