CN107194288A - The control method and terminal of display screen - Google Patents

The control method and terminal of display screen Download PDF

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Publication number
CN107194288A
CN107194288A CN201710277620.3A CN201710277620A CN107194288A CN 107194288 A CN107194288 A CN 107194288A CN 201710277620 A CN201710277620 A CN 201710277620A CN 107194288 A CN107194288 A CN 107194288A
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CN
China
Prior art keywords
display screen
face
number
terminal
visual lines
Prior art date
Application number
CN201710277620.3A
Other languages
Chinese (zh)
Inventor
邓艳峰
殷晓宇
朱玉龙
Original Assignee
上海与德科技有限公司
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Application filed by 上海与德科技有限公司 filed Critical 上海与德科技有限公司
Priority to CN201710277620.3A priority Critical patent/CN107194288A/en
Publication of CN107194288A publication Critical patent/CN107194288A/en

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82Protecting input, output or interconnection devices
    • G06F21/84Protecting input, output or interconnection devices output devices, e.g. displays or monitors
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00221Acquiring or recognising human faces, facial parts, facial sketches, facial expressions
    • G06K9/00228Detection; Localisation; Normalisation

Abstract

The present invention relates to electronic technology field, the control method and terminal of a kind of display screen are disclosed.In embodiment of the present invention, the control method of display screen includes:The face number in display screen front preset region is detected, and when face number is more than 1, obtains N number of direction of visual lines of each face in preset duration;Wherein, N is positive integer;According to N number of direction of visual lines of each face in preset duration, it is display screen to detect whether the sight landing positions that there is a certain non-default face;Sight landing positions if there is a certain non-default face are display screen, then control display screen enters screen protection state.Using embodiments of the present invention, user is when using terminal checks information, and terminal can be automatically to whether someone peeps detects; in order to when someone peeps; go out screen in time, so that the protection to userspersonal information can not only be realized, and also it is easy to spread.

Description

The control method and terminal of display screen

Technical field

The present invention relates to the control method and terminal of electronic technology field, more particularly to display screen.

Background technology

With the fast development of science and technology, the terminal such as mobile phone, computer, tablet personal computer is played the part of in daily life More and more important role.Also, with these terminals function and application increasingly enrich, information inquiry, electronic reading, The application such as microblogging and on-line payment is using extensively, and the safety and secret protection for making personal information seem extremely important, in subway, public affairs The public place such as friendship and elevator uses these terminals, it is easy to which the information occurred shown by terminal display screen is intentional by the people of surrounding Or unintentionally spy on, cause the situation of leakage of information.

But, the inventor of present patent application has found that prior art at least has following defect:

In the prior art, although a polaroid can be increased on the display screen of terminal, make immediately ahead of display screen User in special angle just can see the information shown by display screen, to play a part of peep-proof film.But, it is this anti- The scheme spied on is, it is necessary to which the display screen to terminal selects suitable fixing device, and installation difficulty is larger and not readily portable, pushes away Wide difficulty is larger.

The content of the invention

The purpose of embodiment of the present invention is the control method and terminal for providing a kind of display screen, makes user using eventually End is when checking information, and terminal can be automatically to whether someone peeps detects, in order to when someone peeps, go out in time Screen, so that the protection to userspersonal information can not only be realized, and also it is easy to spread.

In order to solve the above technical problems, embodiments of the present invention provide a kind of control method of display screen, including:

The face number in display screen front preset region is detected, and when face number is more than 1, obtains each face pre- If N number of direction of visual lines in duration;Wherein, N is positive integer;

According to N number of direction of visual lines of each face in preset duration, detect whether there is the sight of a certain non-default face Landing positions are display screen;

Sight landing positions if there is a certain non-default face are display screen, then control display screen enters screen protection shape State.

Embodiments of the present invention additionally provide a kind of terminal, including:First detection module, the second detection module and control Molding block;

First detection module is used to detect the face number in display screen front preset region, and is more than 1 in face number When, obtain N number of direction of visual lines of each face in preset duration;Wherein, N is positive integer;

Second detection module is used for N number of direction of visual lines according to each face in preset duration, detects whether to exist a certain The sight landing positions of non-default face are display screen;

The sight landing positions that control module is used to detect the presence of a certain non-default face in the second detection module are aobvious During display screen, control display screen enters screen protection state.

In terms of existing technologies, in user's using terminal, terminal can be by display for embodiment of the present invention The mode that face number in screen front preset region is detected, to user, whether someone detects after one's death or by the side of, with It is easy to detecting user after one's death or during someone by the side of, the sight landing positions of these faces is obtained on one's own initiative, by detecting this The sight landing positions of a little faces whether be display screen mode, to detect whether that someone peeps.Wherein, if some is non- The sight landing positions of default face are display screen, then terminal judges that someone peeps, and now terminal automatically enter by control display screen Enter screen protection state, currently displayed content is protected with realizing.So, it can not only realize to userspersonal information's Protection, and it is easy to spread.

In addition, obtaining N number of direction of visual lines of each face in preset duration, specifically include:Preset duration is divided into N number of Detection cycle;Obtain in each detection cycle, the direction of visual lines corresponding to the eyeball state of face.It is each this provides obtaining One kind of N number of direction of visual lines of the face in preset duration implements form, adds the feasibility of embodiment of the present invention.

In addition, N number of direction of visual lines according to each face in preset duration, detects whether there is a certain non-default face Sight landing positions are display screen, are specifically included:Obtain non-default face;Judge that non-default face is N number of in preset duration In direction of visual lines, whether it is more than predetermined threshold value towards the number of the direction of visual lines of display screen;If number is more than predetermined threshold value, Judge the sight landing positions of non-default face as display screen.So, by detecting each face in preset duration, direction is aobvious The number of the direction of visual lines of display screen, to determine whether the sight landing positions of face are display screen, to judge whether that someone peeps, The possibility of erroneous judgement can be reduced.

In addition, detect before the face number in display screen front preset region, in addition to:Judge what display screen was currently shown There is privacy content in content.So, when there is privacy content in the content that display screen is currently shown, whether terminal is just to having People, which peeps, to be detected, the function loss that unnecessary detection can be avoided to be brought.

In addition, detect before the face number in display screen front preset region, in addition to:Receive detection instruction.So, Whether user just can need to be controlled into anti-peeping detection state according to the actual demand of oneself to terminal, operation compared with For convenience of quick.

Brief description of the drawings

Fig. 1 is the flow chart according to the control method of display screen in first embodiment of the invention;

Fig. 2 is the flow chart according to the control method of display screen in second embodiment of the invention;

Fig. 3 is the flow chart according to the control method of display screen in third embodiment of the invention;

Fig. 4 is the structural representation according to terminal in four embodiment of the invention.

Embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with each reality of the accompanying drawing to the present invention The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the invention, In order that reader more fully understands the application and proposes many ins and outs.But, even if without these ins and outs and base Many variations and modification in following embodiment, can also realize the application technical scheme claimed.

The first embodiment of the present invention is related to a kind of control method of display screen, and idiographic flow is as shown in Figure 1.This implementation The control method of display screen in mode can be implemented in the terminals such as mobile phone, computer, tablet personal computer, and step is as follows:

Step 101, the face number in detection display screen front preset region, and when face number is more than 1, obtain each N number of direction of visual lines of the face in preset duration.Wherein, N is positive integer.

Specifically, terminal can be provided with front camera, and terminal carries out recognition of face by running front camera Mode, is detected to the face number in display screen front preset region, in order to the face number gone out according to recognition of face, Detect user after one's death or by the side of whether someone.Wherein, terminal can be by way of running background front camera, to enter pedestrian Face is recognized, so as to user's operation will not be interfered and influenceed.

More specifically, if the face number that terminal recognition of face goes out is not more than 1, illustrate that now user is after one's death or body It is other nobody, the environment of active user's using terminal is safer, and the possibility peeped is relatively low;If terminal recognition of face goes out Face number is more than 1, then illustrates now user after one's death or by the side of someone, and the environment of active user's using terminal is dangerous, is stolen The possibility peeped is higher, now, and terminal utilizes front camera, obtains N number of direction of visual lines of each face in preset duration, with It is easy to whether someone peeps further is judged.Wherein, display screen front preset region and preset duration can be with Pre-set and preserved in the terminal by user or technical staff.Such as, display screen front preset region can be by user or technology Personnel are configured according to the shooting angle of front camera, e.g., and user can be by the maximum shooting angle institute of front camera Corresponding region is set to display screen front preset region.

In present embodiment, terminal obtains each face pre- by way of the eyeball state of each face is identified If N number of direction of visual lines in duration.Such as, the mode of N number of direction of visual lines of each face of terminal acquisition in preset duration can be: Preset duration is divided into N number of detection cycle by terminal, and terminal is obtained in each detection cycle, corresponding to the eyeball state of face Direction of visual lines.

Specifically, preset duration directly can be set to N number of inspection by user or technical staff when setting preset duration Duration corresponding to the survey cycle.Wherein, N numerical value and duration corresponding to single detection cycle can be by user or technologies Personnel pre-set and preserved in the terminal.Such as, N can be 5, and the duration corresponding to single detection cycle can be 200 milliseconds. So, terminal just can utilize front camera, and an eyeball knowledge is carried out every 200 milliseconds of eyeball states just to each face Not, in order to the eyeball state recognized according to each eyeball, corresponding direction of visual lines is obtained, so as to realize in preset duration It is interior, N number of direction of visual lines of each face is obtained, operates relatively simple, feasibility is higher, and terminal and eye need not be constantly in Ball identification state, is more saved.

In present embodiment, terminal comes with front camera, in practical operation, and terminal can not also carry preposition take the photograph As head, user can be realized by way of adding a camera being connected with terminal communication, also to display screen front preset area The detection of face number in domain.In present embodiment, the form that implements to terminal does not do any limitation.

Step 102, N number of direction of visual lines according to each face in preset duration, detects whether there is a certain non-default people The sight landing positions of face are display screen.If the sight landing positions for detecting the presence of a certain non-default face are display screen, Step 103 is then performed, otherwise terminates this flow.

Specifically, default face can be pre-set by user and be preserved in the terminal, e.g., and default face can be use Face information of the face information at family, the face information of user friend or user household etc..

More specifically, terminal is in N number of direction of visual lines according to each face in preset duration, detects whether to exist a certain When the sight landing positions of non-default face are display screen, first detected each face can be detected, obtained non-pre- If face, in order to in N number of direction of visual lines of the non-default face in preset duration, towards of the direction of visual lines of display screen Number is counted, and judges whether the number is more than predetermined threshold value.If the number is more than predetermined threshold value, the non-default people is judged The sight landing positions of face are display screen, and the human body corresponding to the non-default face is being peeped.If the number is less than or equal to Predetermined threshold value, then judge the sight landing positions of the default face not as display screen, the human body corresponding to the non-default face is not Peeping.Wherein, predetermined threshold value can be pre-set and be preserved in the terminal by user or technical staff.Such as, in practical operation When, predetermined threshold value can be set smaller than being equal to N by user or technical staff.Such as, when N is 5, predetermined threshold value could be arranged to 3 Or 4.So, as user, someone passes through after one's death or by the side of, and when shooting a glance at terminal display screen once in a while, terminal just will not judge that someone steals Peep, False Rate reduction.

Step 103, control display screen enters screen protection state.

Specifically, terminal is by way of control display screen goes out screen, and control display screen enters screen protection state.This embodiment party In formula, terminal is peeped detecting someone, and control display screen is gone out screen, makes display screen enter after screen protection state, if terminal is received To input instruction, then terminal control display screen bright screen.Such as, when terminal is mobile phone, mobile phone is peeped detecting someone, controls touch-control Display screen goes out screen, into after screen protection state, if Mobile phone touch control display screen detects click, cell phone processor judges to receive Input instruction, now cell phone processor control touching display screen bright screen, in order to which user is checked.So, user and it is not required to Unblock operation is performed again, simplified the operation that user checks input required for terminal display screen again, saved user time.

Compared with prior art, in present embodiment, in user's using terminal, terminal can be by front of display screen The mode that face number in predeterminable area is detected, to user, whether someone detects after one's death or by the side of, in order to Detect user after one's death or by the side of someone when, the sight landing positions of these faces are obtained on one's own initiative, by detecting these faces Sight landing positions whether be display screen mode, to detect whether that someone peeps.Wherein, if some non-default people The sight landing positions of face are display screen, then terminal judges that someone peeps, and now automatically control display screen enters screen protection to terminal State, is protected with realizing to currently displayed content.So, the protection to userspersonal information can not only be realized, And it is easy to spread.

Second embodiment of the present invention is related to a kind of control method of display screen, and idiographic flow is as shown in Figure 2.Second is real Apply mode to be improved on the basis of first embodiment, mainly the improvement is that:In second embodiment of the invention, When there is privacy content in the content that display screen is currently shown, terminal just enters anti-peeping detection state, and can avoid need not The function loss that the detection wanted is brought.It is specifically described below:

In present embodiment, step 202 to step 204 and the step 101 in first embodiment to step 103 substantially phase Together, repeated to reduce, will not be repeated here, only different piece is illustrated below:

Step 201, judge to whether there is privacy content in the content that display screen is currently shown.If so, then performing not all right 202, otherwise perform step 201.

Specifically, the display screen of terminal is in display content, and terminal can on one's own initiative be ejected with control display screen and carried The inquiry window of "Yes" "No" select button, to inquire in the currently displayed content of user, if there is privacy content, if Terminal detects user and selectes "Yes" this select button, then terminal judges exist in the content that display screen is currently shown in privacy Hold;If a terminal detects that in this select button of the selected "No" of user, the then content that terminal judgement display screen is currently shown not There is privacy content to be judged.Or, user can also when using terminal checks information, actively with mouse or finger, Privacy content shown in terminal display screen is irised out, existed in the content currently shown in order to terminal judgement display screen hidden Private content.

Certainly, in practical operation, terminal can also detect the application program corresponding to the content that display screen is currently shown Whether it is default application program, if a terminal detects that the application program corresponding to the content that display screen is currently shown is answered to be default With program, then there is privacy content in the content that terminal judgement display screen is currently shown;If a terminal detects that display screen is current Application program corresponding to the content of display is not default application program, then terminal is judged in the content that display screen is currently shown not There is privacy content.Wherein, default application program can be pre-set by user and be preserved in the terminal, e.g., default to apply journey Sequence can be Alipay, Taobao etc..

However, the example above is only explanation, in present embodiment, content that display screen currently show is not judged terminal In do any limitation with the presence or absence of the form that implements of privacy content.

Compared with prior art, in present embodiment, terminal can have privacy in the content that display screen is currently shown During content, just to whether someone peeps detects, the function loss that unnecessary detection can be avoided to be brought.

Third embodiment of the invention is related to a kind of control method of display screen, and idiographic flow is as shown in Figure 3.3rd implements Mode is improved on the basis of second embodiment, is mainly theed improvement is that:In third embodiment of the invention, eventually Hold when it is position of the concealed content in display screen to detect the sight landing positions of non-default face, ability control display screen is entered Row screen protection state, further increasing to whether someone pry precision.It is specifically described below:

In present embodiment, step 301 to step 303 and step 201 in first embodiment to step 203 substantially phase Together, step 306 is roughly the same with the step 204 in second embodiment, repeats, will not be repeated here to reduce, only right below Different piece is illustrated:

Step 304, position of the concealed content in display screen is obtained.

Specifically, terminal can set up reference frame in display screen, by privacy content in display screen institute occupied area Domain is showed in the form of coordinate points, to obtain position of the concealed content in display screen.

Step 305, whether the sight landing positions for judging the non-default face are position of the concealed content in display screen. If so, then performing step 306, otherwise terminate this flow.

Specifically, terminal is further carried out to the sight landing positions of the non-default face detected by step 303 Judge, whether the sight landing positions for judging the non-default face are position of the concealed content in display screen.If this is non-pre- If the sight landing positions of face are position of the concealed content in display screen, terminal decides that this person is peeping, now terminal Control display screen enters screen protection state, to realize that the private information to user is protected.If the sight of the non-default face The position of landing positions for concealed content in display screen, then it is not to peep to illustrate the face, or it is checked The privacy content of content and non-user, now, control display screen does not carry out screen protection state to terminal.Certainly, in practical operation, Terminal can also control camera to be shot, obtain this non-when judging that the human body corresponding to the non-default face is being peeped The face information of default face, to show user to be checked, makes user to recognize more effective information.

Compared with prior art, in present embodiment, the sight that terminal can be further to non-default face dropping place Whether put is that position of the concealed content in display screen is judged, so as to further improve whether someone pry sentence Disconnected precision.

Four embodiment of the invention is related to a kind of control method of display screen.4th embodiment is in first embodiment On the basis of improved, mainly the improvement is that:In four embodiment of the invention, terminal is receiving detection instruction Afterwards, just into anti-peeping detection state, user is made voluntarily to be controlled to the opportunity that terminal enters anti-peeping detection state System, intelligence degree is higher.

Specifically, terminal can show detection button by display screen, when terminal, which detects detection button, to be selected, Terminal receives detection instruction, and terminal starts to detect the face number in display screen front preset region.In actual behaviour When making, user can also inputting combination key, a certain programmable button of long-press, touch screen is pressed with default pressing force by way of, Terminal is made to receive detection instruction.In present embodiment, the concrete form that detection instruction is not received to terminal does any limit It is fixed.

Compared with prior art, in present embodiment, user can be according to the actual demand of oneself, to whether inputting detection Whether instruction is controlled, in order to need to be controlled into anti-peeping detection state to terminal, is operated more convenient quick.

The step of various methods are divided above, be intended merely to description it is clear, can be merged into when realizing a step or Some steps are split, multiple steps are decomposed into, as long as including identical logical relation, all protection domain in this patent It is interior;To adding inessential modification in algorithm or in flow or introducing inessential design, but its algorithm is not changed Core design with flow is all in the protection domain of the patent.

Fifth embodiment of the invention is related to a kind of terminal, as shown in figure 4, including:First detection module 401, second is examined Survey module 402 and control module 403.

In present embodiment, first detection module 401 is used to detect the face number in display screen front preset region, and When face number is more than 1, N number of direction of visual lines of each face in preset duration is obtained;Wherein, N is positive integer.

Specifically, terminal can be provided with front camera, and first detection module 401 is carried out by running front camera The mode of recognition of face, is detected to the face number in display screen front preset region, in order to be gone out according to recognition of face Face number, detection user after one's death or by the side of whether someone.Wherein, first detection module 401 can be by controlling preposition take the photograph As the mode of head running background, to carry out recognition of face, so as to user's operation will not be interfered and influenceed.

More specifically, if the face number that the recognition of face of first detection module 401 goes out is not more than 1, illustrate now User is after one's death or nobody beside me, and the environment of active user's using terminal is safer, and the possibility peeped is relatively low;If first The face number that the recognition of face of detection module 401 goes out is more than 1, then illustrates now user after one's death or by the side of someone, and active user makes Dangerous with the environment of terminal, the possibility peeped is higher, now, and first detection module 401 utilizes front camera, obtains N number of direction of visual lines of each face in preset duration, in order to whether someone peeps further is judged.Wherein, show Display screen front preset region and preset duration can be pre-set by user or technical staff and be stored in the first detection mould In block 401.Such as, display screen front preset region can be carried out by user or technical staff according to the shooting angle of front camera Set, e.g., the region corresponding to the maximum shooting angle of front camera can be set to display screen front preset area by user Domain.

In present embodiment, first detection module 404 includes:Distribution sub module and acquisition submodule.Distribution sub module For preset duration to be divided into N number of detection cycle;Acquisition submodule is used to obtain in each detection cycle, the augen of face Direction of visual lines corresponding to state.

Specifically, preset duration directly can be set to N number of inspection by user or technical staff when setting preset duration Duration corresponding to the survey cycle.Wherein, N numerical value and duration corresponding to single detection cycle can be by user or technologies Personnel pre-set and preserved.Such as, N can be 5, and the duration corresponding to single detection cycle can be 200 milliseconds.So, One detection module 404 just can utilize front camera, and an eyeball is carried out every 200 milliseconds of eyeball states just to each face Identification, in order to the eyeball state recognized according to each eyeball, obtains corresponding direction of visual lines, so as to realize in preset duration It is interior, N number of direction of visual lines of each face is obtained, operates relatively simple, feasibility is higher, and terminal and eye need not be constantly in Ball identification state, is more saved.

In present embodiment, terminal comes with front camera, in practical operation, and terminal can not also carry preposition take the photograph As head, user can be realized by way of adding a camera being connected with terminal communication, also to display screen front preset area The detection of face number in domain.In present embodiment, the form that implements to terminal does not do any limitation.

In present embodiment, the second detection module 402 is used for N number of direction of visual lines according to each face in preset duration, It is display screen to detect whether the sight landing positions that there is a certain non-default face.

Specifically, default face can be pre-set by user and be stored in the second detection module 402, e.g., preset people Face can be face information, the face information of user friend or face information of user household of user etc..

In present embodiment, the second detection module 402 includes:Recognition of face submodule and processing submodule.Face is known Small pin for the case module is used to obtain non-default face;Processing submodule is used to judge N number of sight of the non-default face in preset duration In direction, whether it is more than predetermined threshold value towards the number of the direction of visual lines of display screen.So, the second detection module 402 is in basis N number of direction of visual lines of each face in preset duration, the sight landing positions for detecting whether to have a certain non-default face are aobvious During display screen, just first detected each face can be detected using recognition of face submodule, obtain non-default face, and Afterwards, using submodule is handled in N number of direction of visual lines of the non-default face in preset duration, towards the direction of visual lines of display screen Number counted, judge the number whether be more than predetermined threshold value.If the number is more than predetermined threshold value, judge that this is non-pre- If the sight landing positions of face are display screen.If the number is less than or equal to predetermined threshold value, the default face is judged Sight landing positions are not display screen.

Wherein, predetermined threshold value can be pre-set and be preserved by user or technical staff.Such as, in practical operation, user Or predetermined threshold value can be set smaller than being equal to N by technical staff.Such as, when N is 5, predetermined threshold value could be arranged to 3 or 4.This Sample, as user, someone passes through after one's death or by the side of, and when shooting a glance at terminal display screen once in a while, the second detection module 402 just will not be determined with People peeps, False Rate reduction.

The sight that control module 403 is used to detect the presence of a certain non-default face in the second detection module 402 dropping place When being set to display screen, control display screen enters screen protection state.

Specifically, control module 403 is by way of control display screen goes out screen, and control display screen enters screen protection state.

It is seen that, present embodiment is the system embodiment corresponding with first embodiment, and present embodiment can be with First embodiment is worked in coordination implementation.The relevant technical details mentioned in first embodiment still have in the present embodiment Effect, in order to reduce repetition, is repeated no more here.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in In first embodiment.

It is noted that each module involved in present embodiment is logic module, and in actual applications, one Individual logic unit can be a part for a physical location or a physical location, can also be with multiple physics lists The combination of member is realized.In addition, will not be with solving institute of the present invention in the innovative part in order to protrude the present invention, present embodiment The technical problem relation of proposition less close unit is introduced, but this be not intended that in present embodiment be not present it is other single Member.

It will be appreciated by those skilled in the art that realizing that all or part of step in above-described embodiment method can be by Program instructs the hardware of correlation to complete, and the program storage is in a storage medium, including some instructions are to cause one Individual equipment (can be single-chip microcomputer, chip etc.) or processor (processor) perform each embodiment methods described of the application All or part of step.And foregoing storage medium includes:USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey The medium of sequence code.

It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention, And in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.

Claims (10)

1. a kind of control method of display screen, it is characterised in that including:
The face number in display screen front preset region is detected, and when the face number is more than 1, obtains each face pre- If N number of direction of visual lines in duration;Wherein, the N is positive integer;
According to N number of direction of visual lines of each face in preset duration, detect whether there is the sight of a certain non-default face Landing positions are the display screen;
Sight landing positions if there is a certain non-default face are the display screen, then control the display screen to enter screen protection State.
2. the control method of display screen according to claim 1, it is characterised in that each face of acquisition is in preset duration Interior N number of direction of visual lines, is specifically included:
The preset duration is divided into N number of detection cycle;
Obtain in each detection cycle, the direction of visual lines corresponding to the eyeball state of the face.
3. the control method of display screen according to claim 1, it is characterised in that described to be preset according to each face N number of direction of visual lines in duration, it is the display screen to detect whether the sight landing positions that there is a certain non-default face, specifically Including:
Obtain non-default face;
Judge in N number of direction of visual lines of the non-default face in preset duration, towards the direction of visual lines of the display screen Whether number is more than predetermined threshold value;
If the number is more than the predetermined threshold value, judge the sight landing positions of the non-default face as the display Screen.
4. the control method of display screen according to claim 1, it is characterised in that the detection display screen front preset area Before face number in domain, in addition to:
Judge there is privacy content in the content that the display screen is currently shown.
5. the control method of display screen according to claim 4, it is characterised in that the control display screen enters screen Before guarantor's state, in addition to:
Obtain position of the concealed content in the display screen;
Judge to there are the sight landing positions of the non-default face as the position.
6. the control method of display screen according to claim 1, it is characterised in that the detection display screen front preset area Before face number in domain, in addition to:
Receive detection instruction.
7. the control method of display screen according to claim 1, it is characterised in that the detection display screen front preset area Face number in domain, is specifically included:
By way of running background front camera carries out recognition of face, the people in the display screen front preset region is detected Face number.
8. a kind of terminal, it is characterised in that including:First detection module, the second detection module and control module;
The first detection module is used to detect the face number in display screen front preset region, and big in the face number When 1, N number of direction of visual lines of each face in preset duration is obtained;Wherein, the N is positive integer;
Second detection module is used for N number of direction of visual lines according to each face in preset duration, detects whether exist The sight landing positions of a certain non-default face are the display screen;
The control module is used for the sight landing positions that a certain non-default face is detected the presence of in second detection module During for the display screen, the display screen is controlled to enter screen protection state.
9. terminal according to claim 8, it is characterised in that the first detection module includes:Distribution sub module and Acquisition submodule;
The distribution sub module is used to the preset duration being divided into N number of detection cycle;
The acquisition submodule is used to obtain in each detection cycle, the direction of visual lines corresponding to the eyeball state of the face.
10. terminal according to claim 9, it is characterised in that second detection module includes:Recognition of face submodule And processing submodule;
The recognition of face submodule is used to obtain non-default face;
The processing submodule is used to judge in N number of direction of visual lines of the non-default face in preset duration, described in Whether the number of the direction of visual lines of display screen is more than predetermined threshold value.
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Application publication date: 20170922