CN109639897A - A kind of light transmission method and device - Google Patents
A kind of light transmission method and device Download PDFInfo
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- CN109639897A CN109639897A CN201811562598.8A CN201811562598A CN109639897A CN 109639897 A CN109639897 A CN 109639897A CN 201811562598 A CN201811562598 A CN 201811562598A CN 109639897 A CN109639897 A CN 109639897A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 46
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Classifications
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
Abstract
The embodiment of the invention discloses a kind of light transmission method and devices, this method comprises: the light compensating lamp of control mobile terminal emits light to target object；It is received by the imaging sensor of mobile terminal by the light of the surface reflection of target object, wherein the light of reflection is incident to imaging sensor via the transparent region of display screen from the display surface of display screen；The transmission state of light based on the received reflection of imaging sensor, is imaged target object by the imaging sensor of mobile terminal, or the display screen of control mobile terminal go out and screen or to light.The embodiment of the present invention solves the problems, such as needs in the prior art while configuring range sensor and imaging sensor and causing hardware cost larger.
Description
Technical field
This application involves field of mobile terminals more particularly to a kind of light transmission methods and device.
Background technique
Range sensor is that infrared a transmitter and receiver are integrated in same device, when transmitter emits one
Determine the infrared light of pulsewidth and frequency, receiver receives the infrared light of object reflection, strong by the received infrared energy of receiver
Spend the distance of judgment object range sensor.
Photodiode in imaging sensor can produce photoelectric effect to visible light and infrared light.Therefore, image
Sensor can receive light infrared transmitter sending and by object reflection and be used with the characteristic based on imaging sensor
Light compensating lamp carries out light filling, for shooting face, realizes the function of the applications such as face unlock.
Therefore, general mobile device needs while configuring range sensor and imaging sensor, to realize face unlock etc.
Function.
Summary of the invention
The embodiment of the present invention provides a kind of light transmission method and device, to solve needs in the prior art while configure
Range sensor and imaging sensor and the problem for causing hardware cost larger.
In order to solve the above technical problems, the present invention is implemented as follows:
In a first aspect, providing a kind of light transmission method, it is applied to mobile terminal comprising:
The light compensating lamp for controlling mobile terminal emits light to target object；
It is received by the imaging sensor of the mobile terminal by the light of the surface reflection of the target object, wherein
The light of the reflection is incident to described image sensing via the transparent region of the display screen from the display surface of the display screen
Device；
The transmission state of light based on the received reflection of described image sensor, passes through the figure of the mobile terminal
As the target object is imaged in sensor, or the display screen of the control mobile terminal go out and screen or to light.
Second aspect provides a kind of light transmitting device, is applied to mobile terminal comprising:
Control unit, the light compensating lamp for controlling mobile terminal emit light to target object；
Imaging sensor, for receiving the light of the surface reflection by the target object, wherein the light of the reflection
From the display surface of the display screen, described image sensor is incident to via the transparent region of the display screen；With
Brightness of display screen control unit, the display screen for controlling the mobile terminal, which go out, to be shielded or lights；
Described image sensor is configured to the transmission state of the light based on the received reflection of described image sensor,
The target object is imaged by the imaging sensor of the mobile terminal.
The third aspect additionally provides a kind of mobile terminal comprising: memory, processor and it is stored in the memory
Computer program that is upper and can running on the processor, realization such as the when the computer program is executed by the processor
The step of method described in one side.
Fourth aspect also provides a kind of computer-readable medium, stores computer program on the computer-readable medium,
The step of method as described in relation to the first aspect is realized when the computer program is executed by processor.
In embodiments of the present invention, light transmission method emits light to target object by the light compensating lamp of mobile terminal,
Then it is received by the imaging sensor of mobile terminal by the light of the surface reflection of target object, to be connect according to imaging sensor
The transmission state of the light of the reflection of receipts realizes that going out for the imaging or display screen to target object is shielded or lighted.In this way, of the invention
The method of embodiment passes through the light that emits to target object of light compensating lamp, and by imaging sensor received reflection light
Transmission state can be realized imaging to target object or control display screen goes out screen or the function of lighting, without be provided simultaneously with away from
The distance between target object and mobile terminal are detected from sensor, to realize that display screen goes out screen or the function lighted.
Cause hardware cost larger so as to solve needs in the prior art while configuring range sensor and imaging sensor
The problem of.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow chart of light transmission method according to an embodiment of the invention；
Fig. 2 is the schematic diagram of mobile terminal according to an embodiment of the invention；
Fig. 3 is the schematic flow chart of light transmission method in accordance with another embodiment of the present invention；
Fig. 4 is the schematic flow chart of the light transmission method of further embodiment according to the present invention；
Fig. 5 is the schematic flow chart of light transmission method accord to a specific embodiment of that present invention；
Fig. 6 is the schematic flow chart of the light transmission method of another specific embodiment according to the present invention；
Fig. 7 is the schematic flow chart of the light transmission method of another specific embodiment according to the present invention；
Fig. 8 is the schematic flow chart of the light transmission method of another specific embodiment according to the present invention；
Fig. 9 is the schematic flow chart of the light transmission method of another specific embodiment according to the present invention；
Figure 10 is the schematic diagram of light transmitting device according to an embodiment of the invention；
Figure 11 is the structural schematic diagram of mobile terminal in accordance with another embodiment of the present invention；
Figure 12 is the structural schematic diagram of the mobile terminal of further embodiment according to the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with of the invention specific real
It applies example and technical solution of the embodiment of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment
It is only a part of the embodiment of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff every other embodiment obtained without making creative work belongs to what the present invention protected
Range.
The technical solution provided below in conjunction with attached drawing, each embodiment that the present invention will be described in detail.
Fig. 1 is the schematic flow chart of the light transmission method according to an embodiment of the invention based on mobile terminal,
Cause hardware cost larger to solve the problems, such as needs in the prior art while configure range sensor and imaging sensor.
S102. the light compensating lamp 202 (as shown in Figure 2) for controlling mobile terminal emits light to target object.
Wherein, it is illustrated in conjunction with Fig. 2, light compensating lamp may be provided at the display area 204 or non-of the display screen of mobile terminal
Display area 203 light compensating lamp can also be arranged at the gap 205 at the edge of display screen (top edge of such as display screen, following
Edge, left edge, right hand edge etc.), which can be construed to the gap between display screen (i.e. screen) and the outline border of display screen.
S104. it receives by the way that the imaging sensor 201 of mobile terminal is (as shown in Figure 2) by the surface reflection of target object
Light, wherein the light of reflection is incident to imaging sensor via the transparent region of display screen from the display surface of display screen.
Wherein, the non-display area at the back side or display screen of the display area of display screen can be set in imaging sensor
The back side.Certainly, in order to reduce the screen accounting of display screen, imaging sensor can be arranged in the display area of display screen to (setting
At the back side of display screen), such as camera, that is, imaging sensor setting position in Fig. 2, i.e. camera may be provided at display area
Any position, the location of the camera being not limited in Fig. 2, so as to improve the usage experience of user.
S106. the transmission state of the light based on the received reflection of imaging sensor, passes through the image sensing of mobile terminal
Target object is imaged in device, or the display screen of control mobile terminal go out and screen or to light.
The light transmission method of the embodiment of the present invention emits light to target object by the light compensating lamp of mobile terminal, then
It is received by the imaging sensor of mobile terminal by the light of the surface reflection of target object, with received according to imaging sensor
The transmission state of the light of reflection realizes that going out for the imaging or display screen to target object is shielded or lighted.In this way, the present invention is implemented
The method of example passes through the light that emits to target object of light compensating lamp, and by imaging sensor received reflection light transmission
State can be realized imaging to target object or control display screen goes out screen or the function of lighting, pass without being provided simultaneously with distance
Sensor detects the distance between target object and mobile terminal, to realize that display screen goes out screen or the function lighted.To
It can solve needs in the prior art while configuring range sensor and imaging sensor and causing hardware cost is biggish to ask
Topic.
Wherein, when display screen is lighted, the method for the embodiment of the present invention may include based on the received reflection of imaging sensor
Light light intensity and formation predetermined pattern, target object is imaged.
As shown in figure 3, the transmission state of the light based on the received reflection of imaging sensor in step S106, passes through shifting
Target object is imaged in the imaging sensor of dynamic terminal, or the screen of control mobile terminal go out and screen or to light, and can wrap
It includes:
If S306. the light compensating lamp of mobile terminal continues to emit light to target object, based on continuing for light compensating lamp transmitting
Light is imaged target object by the imaging sensor of mobile terminal.
When user starts the operation such as Image Acquisition or face unlock, light compensating lamp can emit the continuous beam of light to target object
(that is, light compensating lamp be in be always on state), light can be dissipated after light filling lampshade to be formed predetermined pattern (such as hot spot, area source or
Other patterns etc.), predetermined pattern, to the display screen of mobile terminal, and is transmitted by the surface reflection of target object via display screen
To imaging sensor.Imaging sensor takes the shape of predetermined pattern, to target object can not only be imaged, may be used also
To obtain the depth information of target object, to realize the operations such as face unlock when such as payment function.
As shown in figure 4, the transmission state of the light based on the received reflection of imaging sensor in step S106, passes through shifting
Target object is imaged in the imaging sensor of dynamic terminal, or the display screen of control mobile terminal go out and screen or to light, also
Can include:
If the light that S406. light compensating lamp of mobile terminal emits to target object is pulse light, mobile terminal is controlled
Display screen go out and screen or to light.
That is, since the light that light compensating lamp emits to target object is pulse light, the light that can be emitted according to light compensating lamp
The display screen of line enhanced strength or the pulsed light line traffic control mobile terminal of decaying, which go out, to be shielded or lights.
Wherein, the display screen for controlling mobile terminal, which go out, screen or to be lighted, comprising: when the light intensity value of pulse light is greater than the
One preset threshold, and when display screen is lighted, the display screen for controlling mobile terminal go out screen；Or when the light intensity value of pulse light is less than
Second preset threshold, and display screen goes out when shielding, the display screen for controlling mobile terminal is lighted.Wherein, the first preset threshold is greater than the
Two preset thresholds.
That is, when target object is close to display screen, the surface reflection by target object that light compensating lamp issues to figure
As the brightness of the pulse light of sensor reaches the first preset threshold, while when display screen is in illuminating state, display can control
Shield the screen that goes out.And if target object is far from display screen, the surface reflection by target object that light compensating lamp issues to image sensing
The brightness of the pulse light of device is down to the second preset threshold, while display screen goes out screen, then controllable display screen is lighted.
For example, in user during making a phone call, working as display screen by the setting of the upper lower limit value to brightness of display screen
When brightness is higher than the upper limit value of interface brightness, system thinks that user is very close to display screen at this time, at this point, executable screen behaviour of going out
Make, or close touch screen inductive operation, to avoid the mobile terminal display screen by false triggering, one of the most common type situation
It is that in communication process, the phenomenon that conversing close key and leading to on-hook, method through the embodiment of the present invention are encountered by user face
It can prevent the situation of similar this false triggering from occurring.Certainly, when brightness of display screen is lower than the lower limit value of interface brightness, system
Think that user is far from display screen at this time, at this point, display screen can be lighted, or activation touch screen, again in order to user's use
The mobile terminal carries out other operations, so as to improve the usage experience of user.
In the above-described embodiments, reference can be made to Fig. 5 or Fig. 6 or Fig. 7, display screen can successively include glassy layer, light transport layer
And froth bed, froth bed open up a through-hole, imaging sensor is arranged close to the through-hole of froth bed, wherein the light of reflection is from aobvious
The display surface of display screen is incident to imaging sensor via the transparent region of display screen, comprising:
It is received by glassy layer by the light of the surface reflection of target object, and transmits light and sequentially pass through light transmission
The through-hole of layer, froth bed, to be transferred to imaging sensor.
Wherein, light transport layer includes polaroid, transparent anode conductive layer, luminescent layer, transparent cathode conductive layer.At this point,
Imaging sensor can be equivalent to receiving module, and light compensating lamp can be equivalent to transmitting module.
In this way, by the through-hole of froth bed can by sequentially pass through glassy layer, light transport layer, froth bed light collected
Come, and the light after collecting is made to be transferred to camera (imaging sensor), so as to further increase camera to target pair
The imaging efficiency of elephant.Also, the through-hole by imaging sensor close to froth bed is arranged, and is showing that is, imaging sensor is set
Shield the back side (display area), screen ratio is accounted for so as to improve, to improve the usage experience of user.
It (is equivalent to and is arranged in non-display area it is of course also possible to which imaging sensor is arranged in below the glassy layer of display screen
Domain), as shown in Fig. 8 or Fig. 9, display screen successively includes glassy layer, light transport layer and froth bed, wherein the light of reflection from
The display surface of display screen is incident to imaging sensor via the transparent region of display screen, comprising:
It is received by glassy layer by the light of the surface reflection of target object, and transmits light to imaging sensor.
In this way, the light of light compensating lamp transmitting can directly be transferred to imaging sensor after glassy layer, so as to improve
The penetrance of light, to meet requirement of the imaging sensor to light light intensity value.
It should be noted that some executing subjects of each step of above-described embodiment institute providing method can be same set
It is standby, alternatively, this method can also be by distinct device as executing subject.For example, the executing subject of step S102, S104 can be same
One executing subject, and the executing subject of step S106 then can be another executing subject (such as control unit)；For another example, step
The executing subject of S102, S104, S106 all can be the same executing subjects etc..
In a specific embodiment, it is illustrated in combination with Fig. 2 and Fig. 5, the light compensating lamp of screen edge (can be infrared
Light compensating lamp) be used as transmitting module, light can gap between structural member and screen project.Amoled screen (screen) is to infrared light
Line has certain transmitance, and therefore, infrared camera (imaging sensor) is used as receiving module, can be placed under Amoled screen
Side, the foamed cotton layer of corresponding position carry out borehole, receive by cover-plate glass, polaroid, transparent anode conductive layer, luminescent layer,
The infrared light of transparent cathode transport layer.
When imaging sensor (or camera) work is under image acquisition modality, light compensating lamp is carried out in imaging sensor
It keeps being always on during exposure, the analog/digital gain of imaging sensor carries out dynamic according to the image quality of display screen picture and brightness
It adjusts.The time for exposure of imaging sensor can be controlled by CPU according to the algorithm of automatic exposure.When by above-mentioned exposure
Between/analog gain/digital gain dynamic regulation, imaging sensor receives conductive by cover-plate glass, polaroid, transparent anode
Layer, luminescent layer, transparent cathode transport layer infrared light, target object to be imaged, so as to shoot brightness with
Details meets the image of application demand.
When imaging sensor (or camera) work is under proximity sensor mode, when the exposure of imaging sensor
Between/analog gain/digital gain is fixed on some parameter constant.Picture brightness is big by the light energy entered in exposure cycle at this time
Small positive correlation.For light compensating lamp by the way of pulsed illumination, pulse width/number in the unit time is constant.In this way, working as object
When close to mobile terminal, the light overwhelming majority that light compensating lamp is launched is reflected back camera by object, at this time picture brightness
It is high.When object is far from mobile device, infrared light is decayed a part in propagation path, while the light of object reflection only has one
Part is obtained by camera, and the brightness of picture is lower at this time.
As a result, can be by the upper and lower bound value of setting screen brightness, it, can in the similar application process such as receive calls
When the received light light intensity value of camera institute is higher than the picture brightness upper limit, it is believed that object is held very close to screen at this time
The capable operation such as screen/closing touch screen induction of going out, avoids mobile device false triggering.It is bright in the received light intensity picture of camera institute
When degree is lower than picture brightness lower limit, it is believed that object has moved away from screen at this time, lights screen and activation touch screen again.
In this way, the method for the embodiment of the present invention passes through the light that light compensating lamp emits to target object, and pass through image sensing
Device the transmission state of received reflection light can be realized imaging to target object or control display screen goes out and screen or lights
Function detects the distance between target object and mobile terminal without being provided simultaneously with range sensor, aobvious to realize
Display screen is gone out screen or the function lighted.So as to solve needs in the prior art while configuring range sensor and image sensing
Device and the problem for causing hardware cost larger.
Layout pattern as shown in Figure 5, the emitting area of light compensating lamp (transmitting module) is without any blocking, the light of camera
Transmission path can be influenced by Amoled screen transmitance, therefore, when realizing image acquisition modality and proximity sensor function,
Light compensating lamp needs to consume certain power consumption.
In another specific embodiment, it is illustrated in combination with Fig. 2 and Fig. 6, under the cover-plate glass of non-display area
Light compensating lamp as transmitting module, light compensating lamp transmitting light projects after cover-plate glass；Shield lower camera as receiving module,
The foamed cotton layer of its corresponding position carries out borehole, receives through cover-plate glass, polaroid, transparent anode conductive layer, luminescent layer, transparent
The light of cathode transport layer.Imaging sensor (or camera) works in image acquisition modality or the work of proximity sensor mode
It is identical as specific implementation process described in Fig. 5 to make principle, is not described in detail herein.
Such layout pattern, the transmission path loss of light compensating lamp (transmitting module) is few, and (cover-plate glass transmitance is up to 90%
More than), the light transmission path of imaging sensor (receiving module) also will receive the influence of Amoled screen transmitance, with above-mentioned reality
It applies example to compare, power consumption can be increased slightly.But the light that the method for the embodiment of the present invention can also be emitted by light compensating lamp to target object
Line, and by imaging sensor the state of received reflection light imaging to target object or control display screen can be realized
It goes out screen or the function lighted, the distance between target object and mobile terminal is examined without being provided simultaneously with range sensor
It surveys, to realize that display screen goes out screen or the function lighted.So as to solve needs in the prior art while configuring Distance-sensing
Device and imaging sensor and the problem for causing hardware cost larger.
In another specific embodiment, it is illustrated in combination with Fig. 2 and Fig. 7, transmitting module and receiving module are placed
Below display area, the foamed cotton layer of corresponding position carries out borehole, and light compensating lamp is transmitted as transmitting module through transparent cathode
It is projected after layer, luminescent layer, transparent anode conductive layer, polaroid and cover-plate glass.Shield lower camera as receiving module, receives logical
Cross cover-plate glass, polaroid, transparent anode conductive layer, luminescent layer, transparent cathode transport layer light.Imaging sensor (or
Camera) work specific implementation process described in the working principle and Fig. 5 of image acquisition modality or proximity sensor mode
It is identical, it is not described in detail herein.
Such layout pattern, the transmission path of light compensating lamp is by on-screen display (osd) area, and light penetration is lower, image sensing
The light transmission path of device equally will receive the influence of screen transmitance, realize image acquisition modality and proximity sensor function
When, need to improve transmission power, power consumption height (compared with other embodiments).
Equally, the light that the method for the embodiment of the present invention can also be emitted by light compensating lamp to target object, and pass through image
Sensor the state of received reflection light can be realized imaging to target object or control display screen goes out and screen or lights
Function detects the distance between target object and mobile terminal without being provided simultaneously with range sensor, aobvious to realize
Display screen is gone out screen or the function lighted.So as to solve needs in the prior art while configuring range sensor and image sensing
Device and the problem for causing hardware cost larger.
It in another specific embodiment, is illustrated in combination with Fig. 2 and Fig. 8, the light compensating lamp of screen edge is as transmitting
Module, light can gap between structural member and screen project.Camera is placed under non-display area as receiving module
Side.Similarly, imaging sensor (or camera) work the working principle of image acquisition modality or proximity sensor mode with
Specific implementation process described in Fig. 5 is identical, is not described in detail herein.
Such layout pattern, the emitting area of light compensating lamp is without any blocking, the receiving area cover-plate glass of imaging sensor
To infrared light transmittance height, when realizing image acquisition modality and proximity sensor function, power consumption is in contrast relatively low.Together
Sample, the light that the method for the embodiment of the present invention can also be emitted by light compensating lamp to target object, and connect by imaging sensor
The state of the reflection light of receipts can be realized imaging to target object or control display screen goes out screen or the function of lighting, without
It is provided simultaneously with range sensor to detect the distance between target object and mobile terminal, to realize that display screen goes out screen or point
Bright function.Lead to hardware so as to solve needs in the prior art while configuring range sensor and imaging sensor
The larger problem of cost.
It in another specific embodiment, is illustrated in combination with Fig. 2 and Fig. 9, light compensating lamp and camera are placed in non-
Below display area.Few (cover-plate glass transmitance is up to 90% or more) is lost in the transmission path of light compensating lamp, imaging sensor
Receiving area cover-plate glass is to infrared light transmittance height, when realizing image acquisition modality and proximity sensor function, relatively in fact
For applying example 8, power consumption is slightly higher.
In any of the above-described embodiment, the light transmission method based on mobile terminal can remove traditional close to biography
Sensor, and the accounting of on-screen display (osd) area can be improved, and for described image collecting function and proximity sensor function, only
When having the difference of transmitance, therefore using different layout patterns, the image parameter of infrared light compensating lamp transmission power meter camera
Certain adjustment can be done.
Also, the method for any of the above-described embodiment can bring the simplification of hardware plan, can also reduce mobile terminal
The aperture of cover board.Camera is placed in the back side of display screen, ink aperture can all be removed, to efficiently reduce non-
Display area maximizes mobile phone screen display area, accomplishes bigger screen accounting.
For cell phone type mobile device, the scene (such as unlock/payment application) that is captured as infrared image and
Scene (such as conversing) as proximity sensor application is separation, therefore can start different in application, triggering not
Same operating mode.In cell phone software execution, configures and be used as proximity sensor as the code of infrared image acquisition and configuration
Code is stored in mobile phone simultaneously, when using different scenes, the different initial code of software transfer.
In any of the above-described embodiment, imaging sensor can be infrared camera, and light compensating lamp can be infrared light filling
Lamp.Imaging sensor and the light of light compensating lamp transmission are infrared light as a result, and the transmitance across display screen is higher.
The embodiment of the present invention also provides a kind of light transmitting device, as shown in Figure 10, including control unit, it is moved for controlling
The light compensating lamp of dynamic terminal emits light to target object；Imaging sensor, for receiving by the light of the surface reflection of target object
Line, wherein the light of reflection is incident to imaging sensor via the transparent region of display screen from the display surface of display screen；With it is aobvious
Display screen brightness control unit, the display screen for controlling mobile terminal, which go out, to be shielded or lights.Wherein, imaging sensor is configured to
The transmission state of light based on the received reflection of imaging sensor, by the imaging sensor of mobile terminal to target object into
Row imaging.
The light transmitting device of the embodiment of the present invention controls the light compensating lamp of mobile terminal to target object by control unit
Emit light, is then received by the imaging sensor of mobile terminal by the light of the surface reflection of target object, according to figure
As the transmission state of the light of the received reflection of sensor, the imaging to target object is realized, or controlled by brightness of display screen
Going out for unit control display screen is shielded or is lighted.In this way, what the method for the embodiment of the present invention was emitted by light compensating lamp to target object
Light, and by imaging sensor the state of received reflection light imaging to target object can be realized or control is shown
Shield the function of going out and shield or light, the distance between target object and mobile terminal are carried out without being provided simultaneously with range sensor
Detection, to realize that display screen goes out screen or the function lighted.It is passed so as to solve needs in the prior art while configuring distance
Sensor and imaging sensor and the problem for causing hardware cost larger.
In the above-described embodiments, if the light compensating lamp that imaging sensor is configured to mobile terminal continues to emit light to target object
Line, then the light persistently emitted based on light compensating lamp is to target object.Brightness of display screen control unit is configured to: if mobile terminal
The light that light compensating lamp emits to target object is pulse light, then the screen for controlling mobile terminal, which go out, to be shielded or light.
When user starts the operation such as Image Acquisition or face unlock, light compensating lamp can emit the continuous beam of light to target object,
Light can dissipate to be formed predetermined pattern (such as hot spot, area source or other patterns) after light filling lampshade, and predetermined pattern is passed through
The surface reflection of target object and is transferred to imaging sensor via display screen to the display screen of mobile terminal.Imaging sensor
The shape of predetermined pattern is taken, to target object can not only be imaged, the depth letter of target object can also be obtained
Breath, to realize the operations such as face unlock when such as payment function.
And when the light that light compensating lamp emits to target object is pulse light, it can be according to the light light intensity of light compensating lamp transmitting
The display screen of the pulsed light line traffic control mobile terminal of value enhancing or decaying, which go out, to be shielded or lights.Wherein, brightness of display screen controls
Unit is configured to: when the light intensity value of pulse light is greater than the first preset threshold, and screen is lighted, controlling the screen of mobile terminal
Go out screen；Or when the light intensity value of pulse light is less than the second preset threshold, and screen goes out when shielding, and controls the screen point of mobile terminal
It is bright；Wherein, the first preset threshold is greater than the second preset threshold.
In this way, the pulse light emitted by light compensating lamp to target object, imaging sensor is received by target object surface
The pulse light reflected, and the screen to mobile terminal can be realized by the setting of the upper lower limit value to brightness of display screen
Curtain, which go out, shields or lights the operation of screen, without being provided simultaneously with range sensor between target object and mobile terminal
Distance is detected, to realize that display screen goes out screen or the function lighted.So as to solve needs in the prior art while matching
The problem set range sensor and imaging sensor and cause hardware cost larger.
Each mistake of above-mentioned Fig. 1, Fig. 3, embodiment of the method shown in Fig. 4 can be achieved in the device of any of the above-described embodiment
Journey, and identical technical effect can be reached, to avoid repeating, which is not described herein again.
In any of the above-described embodiment, light compensating lamp may be provided at non-display area or the display of the display screen of mobile terminal
Region, or may be provided at the gap between display screen and the outline border of display screen.The display of display screen is arranged in imaging sensor
The back side of the non-display area at the back side or display screen in region.
The embodiment of the present invention also provides a kind of mobile terminal, and as shown in figure 11, mobile terminal may include a light compensating lamp
1102 and a camera 1101.Wherein, light compensating lamp is the LED or mode of laser group that can emit infrared area source.It is imaging
In the component of head, the filter design of optical filter 1103 is that visible light can not pass through, and only passes through the infrared light of specific band, frequency spectrum
Range is corresponding with the infrared optical spectrum that light compensating lamp is launched.
Each pixel of imaging sensor is a light sensitive diode, in the case where incident laser energy is certain, when unit
Between light sensitive diode generate charge be it is fixed, for common CMOS sensor, rear class can be put by analog/digital
Big mode amplifies signal, to obtain the image of a picture brightness meet demand.
The hardware structural diagram of Figure 12 mobile terminal of embodiment to realize the present invention.As shown in figure 12, the movement is whole
End 1200 includes but is not limited to: radio frequency unit 1201, audio output unit 1203, input unit 1204, passes network module 1202
Sensor 1205, display unit 1206, user input unit 1207, interface unit 1208, memory 1209, processor 1212, with
And the equal components of power supply 1211.It will be understood by those skilled in the art that mobile terminal structure shown in Figure 12 is not constituted to shifting
The restriction of dynamic terminal, mobile terminal may include perhaps combining certain components or difference than illustrating more or fewer components
Component layout.In embodiments of the present invention, mobile terminal includes but is not limited to mobile phone, tablet computer, laptop, palm
Computer, car-mounted terminal, wearable device and pedometer etc..
Wherein, processor 1210, for executing following methods:
The light compensating lamp for controlling mobile terminal emits light to target object；
It is received by the imaging sensor of mobile terminal by the light of the surface reflection of target object, wherein the light of reflection
Line is incident to imaging sensor via the transparent region of display screen from the display surface of display screen；
The transmission state of light based on the received reflection of imaging sensor, by the imaging sensor of mobile terminal to mesh
Mark object is imaged, or the display screen of control mobile terminal go out and screen or to light.
Since this method emits light to target object by the light compensating lamp of mobile terminal, then pass through the figure of mobile terminal
As sensor is received by the light of the surface reflection of target object, according to the shape of the light of the received reflection of imaging sensor
State realizes that going out for the imaging or display screen to target object is shielded or lighted.In this way, the method for the embodiment of the present invention passes through light compensating lamp
The light emitted to target object, and by imaging sensor the state of received reflection light can be realized to target object
Imaging or control display screen go out screen or the function lighted, without be provided simultaneously with range sensor to target object and it is mobile eventually
The distance between end is detected, to realize that display screen goes out screen or the function lighted.So as to solve need in the prior art
The problem that configure range sensor and imaging sensor simultaneously and cause hardware cost larger.
It should be understood that the embodiment of the present invention in, radio frequency unit 1201 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 1210 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 1201 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 1201 can also by wireless communication system and network and other
Equipment communication.
Mobile terminal provides wireless broadband internet by network module 1202 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 1203 can be received by radio frequency unit 1201 or network module 1202 or in memory
The audio data stored in 1209 is converted into audio signal and exports to be sound.Moreover, audio output unit 1203 can be with
Audio output relevant to the specific function that mobile terminal 1200 executes is provided (for example, call signal receives sound, message sink
Sound etc.).Audio output unit 1203 includes loudspeaker, buzzer and receiver etc..
Input unit 1204 is for receiving audio or video signal.Input unit 1204 may include graphics processor
(Graphics Processing Unit, GPU) 12041 and microphone 12042, graphics processor 12041 are captured in video
In mode or image capture mode by image capture apparatus (such as camera) obtain static images or video image data into
Row processing.Treated, and picture frame may be displayed on display unit 1206.Through treated the picture frame of graphics processor 12041
It can store in memory 1209 (or other storage mediums) or carried out via radio frequency unit 1201 or network module 1202
It sends.Microphone 12042 can receive sound, and can be audio data by such acoustic processing.Audio that treated
Data can be converted to the lattice that mobile communication base station can be sent to via radio frequency unit 1201 in the case where telephone calling model
Formula output.
Mobile terminal 1200 further includes at least one sensor 1205, for example, optical sensor, motion sensor and other
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ring
The light and shade of border light adjusts the brightness of display panel 12061, proximity sensor can when mobile terminal 1200 is moved in one's ear,
Close display panel 12061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions
The size of (generally three axis) acceleration, can detect that size and the direction of gravity, can be used to identify mobile terminal appearance when static
State (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion)
Deng；Sensor 1205 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, gas
Meter, hygrometer, thermometer, infrared sensor etc. are pressed, wherein infrared sensor can be by emitting and receiving infrared flash ranging
The distance between object and mobile terminal are measured, details are not described herein.
Display unit 1206 is for showing information input by user or being supplied to the information of user.Display unit 1206 can
Including display panel 12061, liquid crystal display (Liquid Crystal Display, LCD), organic light-emitting diodes can be used
Forms such as (Organic Light-Emitting Diode, OLED) are managed to configure display panel 12061.
User input unit 1207 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 1207 include touch panel 12071 with
And other input equipments 12072.Touch panel 12071, also referred to as touch screen collect the touch behaviour of user on it or nearby
Make (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 12071 or in touch panel
Operation near 12071).Touch panel 12071 may include both touch detecting apparatus and touch controller.Wherein, it touches
The touch orientation of detection device detection user is touched, and detects touch operation bring signal, transmits a signal to touch controller；
Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 1210,
It receives the order that processor 1210 is sent and is executed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface
The multiple types such as sound wave realize touch panel 12071.In addition to touch panel 12071, user input unit 1207 can also include
Other input equipments 12072.Specifically, other input equipments 12072 can include but is not limited to physical keyboard, function key (ratio
Such as volume control button, switch key), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 12071 can be covered on display panel 12061, when touch panel 12071 detects
After touch operation on or near it, processor 1210 is sent to determine the type of touch event, is followed by subsequent processing device 1210
Corresponding visual output is provided on display panel 12061 according to the type of touch event.Although in Figure 12, touch panel
12071 and display panel 12061 are the functions that outputs and inputs of realizing mobile terminal as two independent components, but
In some embodiments, touch panel 12071 can be integrated with display panel 12061 and realize outputting and inputting for mobile terminal
Function, specifically herein without limitation.
Interface unit 1208 is the interface that external device (ED) is connect with mobile terminal 1200.For example, external device (ED) may include
Wired or wireless headphone port, external power supply (or battery charger) port, wired or wireless data port, storage card
Port, port, the port audio input/output (I/O), video i/o port, earphone for connecting the device with identification module
Port etc..Interface unit 1208 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) simultaneously
And by one or more elements that the input received is transferred in mobile terminal 1200 or it can be used in mobile terminal
Data are transmitted between 1200 and external device (ED).
Memory 1209 can be used for storing software program and various data.Memory 1209 can mainly include storage program
Area and storage data area, wherein storing program area can application program needed for storage program area, at least one function (such as
Sound-playing function, image player function etc.) etc.；Storage data area, which can be stored, uses created data (ratio according to mobile phone
Such as audio data, phone directory) etc..In addition, memory 1209 may include high-speed random access memory, it can also include non-
Volatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.
Processor 1210 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 1209, and calls and is stored in storage
Data in device 1209 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 1210 may include one or more processing units；Preferably, processor 1210 can integrate application processor and modulation /demodulation
Processor, wherein the main processing operation system of application processor, user interface and application program etc., modem processor master
Handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1210.
Mobile terminal 1200 can also include the power supply 1211 (such as battery) powered to all parts, it is preferred that power supply
1211 can be logically contiguous by power-supply management system and processor 1210, to realize that management is filled by power-supply management system
The functions such as electricity, electric discharge and power managed.
In addition, mobile terminal 1200 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, may include processor 1210, memory 1209,
It is stored in the computer program that can be run on memory 1209 and on the processor 1210, the computer program is by processor
1210 realize each process of above-mentioned Fig. 1, Fig. 3, embodiment of the method shown in Fig. 4 when executing, and can reach identical technology effect
Fruit, to avoid repeating, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned method shown in FIG. 1 when being executed by processor, and can reach phase
Same technical effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as read-only storage
Device (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or light
Disk etc..
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method of element, commodity or equipment.
It will be understood by those skilled in the art that the embodiment of the present invention can provide as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the present invention
Form.It is deposited moreover, the present invention can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The above description is only an embodiment of the present invention, is not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.All any modifications made within the spirit and principles of the present invention are equal
Replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (13)
1. a kind of light transmission method is applied to mobile terminal, which is characterized in that the described method includes:
The light compensating lamp for controlling the mobile terminal emits light to target object；
It is received by the imaging sensor of the mobile terminal by the light of the surface reflection of the target object, wherein described
The light of reflection is incident to described image sensor via the transparent region of the display screen from the display surface of the display screen；
The transmission state of light based on the received reflection of described image sensor is passed by the image of the mobile terminal
The target object is imaged in sensor, or the display screen of the control mobile terminal go out and screen or to light.
2. the method as described in claim 1, which is characterized in that the light based on the received reflection of described image sensor
Transmission state, the target object is imaged by the imaging sensor of the mobile terminal, or the control movement
The display screen of terminal, which go out, to be shielded or lights, comprising:
If the light compensating lamp of the mobile terminal continues to emit light to the target object, persistently emitted based on the light compensating lamp
Light, the target object is imaged by the imaging sensor of the mobile terminal.
3. the method as described in claim 1, which is characterized in that the light based on the received reflection of described image sensor
State, the target object is imaged by the imaging sensor of the mobile terminal, or the control mobile terminal
Display screen go out and screen or to light, comprising:
If the light that the light compensating lamp of the mobile terminal emits to the target object is pulse light, control described mobile whole
The display screen at end, which go out, to be shielded or lights.
4. method as claimed in claim 3, which is characterized in that the display screen of the control mobile terminal go out screen or
It lights, comprising:
When the light intensity value of the pulse light is greater than the first preset threshold, and the display screen is lighted, control described mobile whole
The display screen at end goes out screen；Or
When the light intensity value of the pulse light is less than the second preset threshold, and the display screen goes out when shielding, control it is described it is mobile eventually
The display screen at end is lighted；
Wherein, first preset threshold is greater than second preset threshold.
5. the method according to claim 1, wherein the display screen successively includes glassy layer, light transport layer
And froth bed, the froth bed open up a through-hole, described image sensor is arranged close to the through-hole of the froth bed, wherein institute
The light of reflection is stated from the display surface of the display screen, is incident to described image sensing via the transparent region of the display screen
Device, comprising:
It is received by the glassy layer by the light of the surface reflection of the target object, and transmits the light and sequentially pass through institute
The through-hole of light transport layer, the froth bed is stated, to be transferred to described image sensor.
6. the method according to claim 1, wherein the display screen successively includes glassy layer, light transport layer
And froth bed, wherein the light of the reflection is incident via the transparent region of the display screen from the display surface of the display screen
To described image sensor, comprising:
It is received by the glassy layer by the light of the surface reflection of the target object, and transmits the light to described image
Sensor.
7. a kind of light transmitting device based on mobile terminal characterized by comprising
Control unit, the light compensating lamp for controlling mobile terminal emit light to target object；
Imaging sensor, for receiving the light of the surface reflection by the target object, wherein the light of the reflection is from institute
The display surface for stating display screen is incident to described image sensor via the transparent region of the display screen；With
Brightness of display screen control unit, the display screen for controlling the mobile terminal, which go out, to be shielded or lights；
Described image sensor is configured to the transmission state of the light based on the received reflection of described image sensor, passes through
The target object is imaged in the imaging sensor of the mobile terminal.
8. device as claimed in claim 7, which is characterized in that described image sensor is configured to:
If the light compensating lamp of the mobile terminal continues to emit light to the target object, persistently emitted based on the light compensating lamp
Light, the target object is imaged by the imaging sensor of the mobile terminal.
9. device as claimed in claim 7, which is characterized in that the brightness of display screen control unit is configured to:
If the light that the light compensating lamp of the mobile terminal emits to the target object is pulse light, control described mobile whole
The screen at end, which go out, to be shielded or lights.
10. device as claimed in claim 9, which is characterized in that the brightness of display screen control unit is configured to:
When the light intensity value of the pulse light is greater than the first preset threshold, and the screen is lighted, the mobile terminal is controlled
Screen go out screen；Or
When the light intensity value of the pulse light is less than the second preset threshold, and the screen goes out when shielding, and controls the mobile terminal
Screen light；
Wherein, first preset threshold is greater than second preset threshold.
11. device as claimed in claim 7, which is characterized in that the display screen of the mobile terminal is arranged in the light compensating lamp
Non-display area or display area, or the gap being arranged between the display screen and the outline border of the display screen；
The back side of the display area of the display screen or the non-display area of the display screen is arranged in described image sensor
The back side.
12. a kind of mobile terminal characterized by comprising memory, processor and be stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 6 is realized when the computer program is executed by the processor
Any one of described in method the step of.
13. a kind of computer-readable medium, which is characterized in that computer program is stored on the computer-readable medium, it is described
The step of method as described in right wants any one of 1 to 6 is realized when computer program is executed by processor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811562598.8A CN109639897A (en) | 2018-12-20 | 2018-12-20 | A kind of light transmission method and device |
| PCT/CN2019/117969 WO2020125278A1 (en) | 2018-12-20 | 2019-11-13 | Light transmission method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811562598.8A CN109639897A (en) | 2018-12-20 | 2018-12-20 | A kind of light transmission method and device |
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| Publication Number | Publication Date |
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| CN109639897A true CN109639897A (en) | 2019-04-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811562598.8A Pending CN109639897A (en) | 2018-12-20 | 2018-12-20 | A kind of light transmission method and device |
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| CN (1) | CN109639897A (en) |
| WO (1) | WO2020125278A1 (en) |
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| CN111343333A (en) * | 2020-02-04 | 2020-06-26 | Oppo广东移动通信有限公司 | Proximity detection control method and related device |
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| CN112164764B (en) * | 2020-09-30 | 2023-06-06 | 京东方科技集团股份有限公司 | Display module, preparation method thereof and display device |
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Application publication date: 20190416 |