CN106598209A - Terminal screen display control method, device and terminal - Google Patents
Terminal screen display control method, device and terminal Download PDFInfo
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- CN106598209A CN106598209A CN201510685762.4A CN201510685762A CN106598209A CN 106598209 A CN106598209 A CN 106598209A CN 201510685762 A CN201510685762 A CN 201510685762A CN 106598209 A CN106598209 A CN 106598209A
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Abstract
The invention provides a terminal screen display control method, device and a terminal. The method comprises steps of acquiring a relative angle between user eyes and a terminal screen, adjusting display parameters of the terminal screen according to the relative angle, and controlling display of the terminal screen according to the display parameters. The display parameters consist of a display range and/or display angle. According to the embodiment, the terminal acquires the relative angle between the user eyes and the terminal screen, then adjusts the optical parameters of the terminal screen according to the relative angle, and at last controls the display of the terminal screen based on the display parameters, so contents displayed on the terminal screen can be only seen by a user and other people cannot check the screen display; a problem of incapability of user privacy protection by a terminal screen display way in the prior art can be solved; and terminal display information safety can be guaranteed and user use experience can be enhanced.
Description
Technical field
The present invention relates to terminal display field, more particularly to a kind of terminal screen display control method and device,
Terminal.
Background technology
With mobile device, such as mobile phone, flat board etc., performance is more and more stronger, and it is indispensable which becomes user
Necessary article, but, when in the open and the more occasion of surrounding population, need on mobile phone, flat board
When viewing is related to the secret picture of individual privacy or enterprise, video, document etc., unavoidable people around can see
Or contents of mobile phone screen is spied on, so as to be difficult to ensure that the information security of individual or even enterprise.
Therefore, how to provide it is a kind of can in the method for control terminal screen display, be those skilled in the art urgently
Technical problem to be solved.
The content of the invention
The invention provides a kind of terminal screen display control method and device, terminal, to solve existing terminal
Screen display mode can not protect the problem of privacy of user.
The invention provides a kind of terminal screen display control method, which includes：
Obtain the relative angle of eyes of user and terminal screen；
The display parameters of terminal screen are adjusted according to relative angle, display parameters include indication range and/or display
Angle；
According to the display of display parameters control terminal screen.
Further, included according to the display of display parameters control terminal screen：Using grating array technology,
Lens technologies, one or more pointed in light source technology, adjust the display of terminal screen according to display parameters.
Further, the display parameters for adjusting terminal screen according to relative angle include：It is true according to relative angle
Determining the visual parameters of eyes of user, display parameters being adjusted according to visual parameters, visual parameters include visual range
And/or visible angle.
Further, also include：If relative angle cannot be obtained, screen display control failure is reminded.
Further, also include：If display parameters are beyond the indication range of terminal screen, screen is reminded to show
Show control failure.
Further, also include：Selected according to user, or need the file attribute for showing, judged whether
Control terminal screen display is needed, relative angle is if so, then obtained.
Further, obtaining eyes of user is included with the relative angle of terminal screen：Obtain in real time or periodically
Relative angle.
Further, obtaining eyes of user is included with the relative angle of terminal screen：Eyes to active user
The position and orientation of relative screen is identified, and screen attitude is identified；Phase is determined according to recognition result
To angle.
Further, the position and orientation of the eyes relative screen of active user are identified including：Pass through
The front-facing camera of terminal screen side and/or the thermoinduction sensor of terminal screen side, to active user's
The position and orientation of eyes relative screen is identified.
Further, screen attitude is identified including：By gyroscope, gravity sensor, acceleration
One or more of sensor, is identified to screen attitude.
The invention provides a kind of terminal screen display control unit, which includes：
Acquisition module, for obtaining the relative angle of eyes of user and terminal screen；
Processing module, for the display parameters of terminal screen are adjusted according to relative angle, display parameters include showing
Demonstration is enclosed and/or angles of display；
Control module, for the display according to display parameters control terminal screen.
Further, control module is used for using grating array technology, lens technologies, points in light source technology
One or more, according to display parameters adjust terminal screen display.
Further, processing module is for determining the visual parameters of eyes of user according to relative angle, according to can
Depending on parameter adjustment display parameters, visual parameters include visual range and/or visible angle.
Further, if acquisition module is additionally operable to obtain relative angle, screen display control is reminded to lose
Lose.
Further, if processing module is additionally operable to indication range of the display parameters beyond terminal screen, remind
Screen display control failure.
Further, also include：Opening module, for selecting according to user, or needs the file for showing
Attribute, judges whether to need control terminal screen display, if so, then triggers acquisition module and obtains relative angle.
Further, acquisition module is used to obtain relative angle in real time or periodically.
Further, acquisition module is for knowing to the position and orientation of the eyes relative screen of active user
Not, screen attitude is identified；Relative angle is determined according to recognition result.
Further, acquisition module is used for the front-facing camera by terminal screen side and/or terminal screen one
The thermoinduction sensor of side, is identified to the position and orientation of the eyes relative screen of active user.
Further, acquisition module is used for by gyroscope, gravity sensor, one kind of acceleration transducer
Or it is various, screen attitude is identified.
Meanwhile, the invention provides a kind of terminal, which includes the terminal screen display control dress of present invention offer
Put.
Beneficial effects of the present invention：
The invention provides a kind of terminal screen display control method, opens the control function, terminal when needed
The relative angle of eyes of user and terminal screen is obtained, and then it is optimal terminal screen to be adjusted according to relative angle
Display parameters, and then using the display of this display parameters control terminal screen, this can be so that end panel
The content that curtain shows only has user and can see, and other people cannot see screen display, solves existing terminal
Screen display mode can not protect the problem of privacy of user, it is ensured that the safety of terminal display information, enhance
The experience of user.
Description of the drawings
The structural representation of the terminal screen display control unit that Fig. 1 is provided for first embodiment of the invention；
The flow chart of the terminal screen display control method that Fig. 2 is provided for second embodiment of the invention；
The flow chart of the terminal screen display control method that Fig. 3 is provided for third embodiment of the invention；
Fig. 4 is the relative position schematic diagram of eyes of user and terminal screen in third embodiment of the invention.
Specific embodiment
Now the present invention is made by way of specific embodiment combines accompanying drawing and further annotate explanation.
First embodiment：
The structural representation of the terminal screen display control unit that Fig. 1 is provided for first embodiment of the invention, by
Fig. 1 understands that in the present embodiment, the terminal screen display control unit 1 that the present invention is provided includes：
Acquisition module 11, for obtaining the relative angle of eyes of user and terminal screen；
Processing module 12, for the display parameters of terminal screen are adjusted according to relative angle, display parameters include
Indication range and/or angles of display；
Control module 13, for the display according to display parameters control terminal screen.
In certain embodiments, the control module 13 in above-described embodiment is used for using grating array technology, thoroughly
Mirror technology, one or more pointed in light source technology, adjust the display of terminal screen according to display parameters.
In certain embodiments, the processing module 12 in above-described embodiment is for determining user according to relative angle
The visual parameters of eyes, adjust display parameters according to visual parameters, and visual parameters include visual range and/or can
Angle.
In certain embodiments, if the acquisition module in above-described embodiment 11 is additionally operable to obtain relative angle,
Screen display control failure is reminded then.
In certain embodiments, if the processing module in above-described embodiment 12 is additionally operable to display parameters beyond terminal
The indication range of screen, then remind screen display control failure.
In certain embodiments, as shown in figure 1, terminal screen display control unit 1 in above-described embodiment
Also include：Opening module 14, for selecting according to user, or needs the file attribute for showing, judgement is
It is no to need control terminal screen display, if so, then trigger acquisition module and obtain relative angle.
In certain embodiments, the acquisition module 11 in above-described embodiment is used to obtain relative in real time or periodically
Angle.
In certain embodiments, the acquisition module 11 in above-described embodiment is relative for the eyes to active user
The position and orientation of screen is identified, and screen attitude is identified；Relative angle is determined according to recognition result
Degree.
In certain embodiments, the acquisition module 11 in above-described embodiment is used for by before terminal screen side
The thermoinduction sensor of photographic head and/or terminal screen side is put, the position to the eyes relative screen of active user
Put and be identified with orientation.
In certain embodiments, the acquisition module 11 in above-described embodiment is used for by gyroscope, gravity sensing
One or more of device, acceleration transducer, is identified to screen attitude.
In order that the present invention is applied, the invention provides a kind of terminal, which includes present invention offer
Terminal screen display control unit, which includes mode and can be to increase special device, or increases in terminal
Plus the application of corresponding function.
Second embodiment：
The flow chart of the terminal screen display control method that Fig. 2 is provided for second embodiment of the invention, by Fig. 2
Understand, in the present embodiment, the terminal screen display control method that the present invention is provided is comprised the following steps：
S201：Obtain the relative angle of eyes of user and terminal screen；
S202：According to relative angle adjust terminal screen display parameters, display parameters include indication range and/
Or angles of display；
S203：According to the display of display parameters control terminal screen.
In certain embodiments, the display according to display parameters control terminal screen in above-described embodiment includes：
Using grating array technology, lens technologies, one or more pointed in light source technology, according to display parameters
The display of adjustment terminal screen.
In certain embodiments, the display parameters that terminal screen is adjusted according to relative angle in above-described embodiment
Including：The visual parameters of eyes of user are determined according to relative angle, display parameters are adjusted according to visual parameters,
Visual parameters include visual range and/or visible angle.
In certain embodiments, the method in above-described embodiment also includes：If relative angle cannot be obtained,
Remind screen display control failure.
In certain embodiments, the method in above-described embodiment also includes：If display parameters exceed terminal screen
Indication range, then remind screen display control failure.
In certain embodiments, the method in above-described embodiment also includes：Selected according to user, or needed
The file attribute of display, judges whether to need control terminal screen display, if so, then obtains relative angle.
In certain embodiments, the relative angle bag for obtaining eyes of user and terminal screen in above-described embodiment
Include：Relative angle is obtained in real time or periodically.
In certain embodiments, the relative angle bag for obtaining eyes of user and terminal screen in above-described embodiment
Include：The position and orientation of the eyes relative screen of active user are identified, screen attitude is identified；
Relative angle is determined according to recognition result.
In certain embodiments, the position and side of the eyes relative screen to active user in above-described embodiment
Position is identified including：By the front-facing camera and/or the thermoinduction of terminal screen side of terminal screen side
Sensor, is identified to the position and orientation of the eyes relative screen of active user.
In certain embodiments, screen attitude is identified including in above-described embodiment：By gyroscope,
One or more of gravity sensor, acceleration transducer, is identified to screen attitude.
Further annotation explanation is done to the present invention in conjunction with concrete application scene.
3rd embodiment：
In the prior art, common terminal screen includes LCD (Liquid Crystal Display) liquid crystal
Screen, OLED (Organic Light-Emitting Diode) screen.
Wherein, display panels are mainly by back light, glass substrate, polaroid, liquid crystal material, coloured silk
Colo(u)r filter is constituted, between upper and lower glass, full of liquid crystal；Liquid crystal be one kind between solid-state and liquid,
Organic compound with systematicness molecules align, under the effect of different current electric fields, liquid crystal molecule can be advised
Arrangement is then rotated by 90 °, so as to produce the difference of transmittance, light and shade is produced so under power source ON/OFF
Difference, controls each pixel according to this principle, recycles colored filter to form Red Green Blue,
Just may make up required image.
The basic structure of OLED is one layer thin, transparent, possesses the indium tin oxide of characteristic of semiconductor, with power supply
Positive pole is connected, along with another metallic cathode, and including hole transmission layer, luminescent layer, electron transfer layer,
After voltage reaches certain value, positive pole hole will be combined in luminescent layer with negative electrode electric charge, produce light,
Basic color is constituted according to the different Red Green Blues that produce of its formula.
The visible angle and scope of screen refers to that user can from different directions/distance clearly view screen
The angle of upper all the elements, will produce the phenomenons such as color distortion beyond the angle；LCD and OLED screen curtain
Visible angle, can typically reach more than 150 degree.In actual applications, using a series of optics side
Method, the visible angle and visual range for being capable of achieving screen is adjustable, and such as grating array technology (is blocked using grating
Appear with directional rays), lens technologies (add convex lenss, the directional rays such as concavees lens in screen surface saturating
Go out), point to light source technology (back light or illuminating source orientation) etc., or taken using screen and glasses
The method matched somebody with somebody, only wearing special glasses can just see screen content.
Eyes of user involved in the present invention is with the relative angle of terminal screen as shown in figure 4, the present invention can be real
The now regulation to mobile terminal screen visible angle or scope, so as to ensure that transient copy is only capable of being made
Seen with the user of the mobile terminal, and other people cannot see, so as to protect the information security of user.Specifically
, front-facing camera or induction module of the present invention using mobile terminal screen side, and mobile terminal
The devices such as gyroscope, gravity sensor, realize the tracking to the orientation and position of eyes of user relative screen and
Confirm, and realize orientation and the identification and confirmation of position to the relative eyes of user of mobile terminal attitude, from
And the visible angle or scope of mobile terminal screen are reasonably adjusted, so as to ensure that transient copy is only capable of
Seen by the user using the mobile terminal, and other people cannot see.
As shown in figure 3, terminal screen display control method provided by the present invention is comprised the following steps：
S301：Screen orientation display pattern starts.
S302：Mobile terminal starts the position of eyes relative screen to active user and the identification in orientation and sentences
It is disconnected.
S303：Mobile terminal starts the identification of screen attitude and judges.
S304：Mobile terminal combines the information obtained by step S302 and step S303, draws eyes of user
The position and orientation of relative screen, and adjust its screen display visible angle and visual range.
S305：Mobile terminal implements tracking screen, the relative position of eyes of user, and according to both relative positions
The change put adjusts its screen display visible angle and visual range.
S306：Screen orientation display pattern is closed.
Further, for the identification and judgement in eyes of user relative screen position and orientation in step S302,
Can pass through to open the front-facing camera of screen side, open the realization such as thermoinduction sensor of screen side.
Further, the identification described in step S302 is such as failed with judgement, then should point out user in time
The identification of the step and judgement failure, and exit screen orientation display pattern.
Further, for the identification and judgement of screen attitude in step S303, can be by the top of mobile terminal
Spiral shell instrument, gravity sensor, acceleration transducer etc. are realized.
Further, the identification described in step S303 is such as failed with judgement, then should point out user in time
The identification of the step and judgement failure, and exit screen orientation display pattern.
Further, if eyes of user, screen relative position in step S305, beyond screen is adjustable can
Angle and visual range, then be automatically switched off screen orientation display pattern, and point out user in time.
Specific application scenarios are as follows：
User receives a mobile phone that can protect display information safety from company, and the mobile phone is configured mainly to：
6.0 inch of 1920 × 1080 resolution AMOLED material and be capable of achieving orientation show screen, preposition 8,000,000
Photographic head that pixel, aperture F1.8 are focused, the photographic head of rearmounted 20,000,000 pixel aperture F1.8 auto-focusings,
Eight core 2.0GHz processors, 4GB LPDDR4RAM+64GB ROM memories, support gyroscope/gravity sensing
Device/electronic compass etc..
User receives the Email of an envelope " secret " rank, checks in mail when user clicks on mail header
Rong Shi, mobile phone orient display pattern automatically into screen.
The front-facing camera of 8,000,000 pixels of screen side is opened first, in cell phone processor, photographic head figure
Under as the control and calculating of signal processor, the face mask of user is found and identified, and is further recognized
With the eyes for determining user, and recognize successfully in mobile phone screen prompting eyes of user in time.
Afterwards, cell phone processor opens gyroscope, gravity sensing sensor, relative so as to obtain mobile phone itself
In information such as trunnion axis, the angles of vertical axises, and in time in mobile phone screen prompting mobile telephone set (or screen) attitude
Recognize successfully.
Afterwards, cell phone processor information as obtained by aforementioned, by the tracking situation of eyes of user, Mobile phone screen
Curtain attitude information, calculates the relative position information of eyes of user and screen, i.e. eyes of user center is in one's hands
The vertical dimension of machine screen platform is the line of A, B, C, D of 10cm, eyes of user center and mobile phone screen
It is divided into other 47 degree, 37 degree, 35 degree, 40 degree relative to the angle of mobile phone screen plane.
Afterwards, position of the mobile phone screen according to eyes of user, by the focal length for adjusting screen surface lens pillar
With the parameter such as light-transmission angles, and then the visible angle and visual range of screen are adjusted, to ensure that mobile phone screen is saturating
The light for going out invests eyes of user position, so as to the eyes for only having user are it can be seen that screen content, other weeks
Side user can't see.
Meanwhile, the front-facing camera of mobile phone, gyroscope, gravity sensor and processor holding work and data
Calculate, position of the real-time tracking eyes of user with respect to mobile phone screen, and the visible angle of real-time adjustment screen with
Visual range.
" secret " mail is somebody's turn to do when user's reading to finish, and after exiting mail access, screen orientation shows mould
Formula terminates.
Above-mentioned scene can realize to user's eyes scope more accurately identification, tracking and screen display are fixed
To.In actual applications, the judgement of mobile phone screen attitude can be removed, mobile phone front-facing camera is only relied on and opened
Open, and judge approximate location of the eyes of user with respect to mobile phone screen.
The present invention automatically, accurately can recognize and judge, position of the eyes of user with respect to mobile phone screen, from
And mobile phone screen can automatically adjust its visible angle and visual range, mobile phone screen display content only user's eye is allowed
Eyeball regional location can be read, and other positions cannot be read.Its important step has：
In summary, by the enforcement of the present invention, at least there is following beneficial effect：
The invention provides a kind of terminal screen display control method, opens the control function when needed, eventually
End obtains the relative angle of eyes of user and terminal screen, and then it is optimal to adjust terminal screen according to relative angle
Display parameters, and then using the display of this display parameters control terminal screen, this can be so that terminal
The content of screen display only has user and can see, and other people cannot see screen display, solves existing end
End screen display mode can not protect the problem of privacy of user, it is ensured that the safety of terminal display information, strengthen
The experience of user.
The above is only the specific embodiment of the present invention, any pro forma restriction not done to the present invention,
It is every according to the present invention technical spirit embodiment of above is made any simple modification, equivalent variations,
With reference to or modification, still fall within the protection domain of technical solution of the present invention.
Claims (21)
1. a kind of terminal screen display control method, it is characterised in that include：
Obtain the relative angle of eyes of user and terminal screen；
The display parameters of the terminal screen are adjusted according to the relative angle, the display parameters include showing
Scope and/or angles of display；
The display of the terminal screen is controlled according to the display parameters.
2. terminal screen display control method as claimed in claim 1, it is characterised in that the basis
The display parameters control the display of the terminal screen to be included：Using grating array technology, lens technologies,
One or more in light source technology is pointed to, and the display of the terminal screen is adjusted according to the display parameters.
3. terminal screen display control method as claimed in claim 1, it is characterised in that the basis
The relative angle adjusts the display parameters of the terminal screen to be included：User is determined according to the relative angle
The visual parameters of eyes, adjust the display parameters according to the visual parameters, and the visual parameters include can
Depending on scope and/or visible angle.
4. terminal screen display control method as claimed in claim 1, it is characterised in that also include：
If the relative angle cannot be obtained, screen display control failure is reminded.
5. terminal screen display control method as claimed in claim 1, it is characterised in that also include：
If the display parameters are beyond the indication range of the terminal screen, screen display control failure is reminded.
6. terminal screen display control method as claimed in claim 1, it is characterised in that also include：
Selected according to user, or need the file attribute for showing, judge whether to need to control the terminal screen to show
Show, if so, then obtain the relative angle.
7. terminal screen display control method as claimed in claim 1, it is characterised in that the acquisition
Eyes of user is included with the relative angle of terminal screen：Obtain the relative angle in real time or periodically.
8. the terminal screen display control method as described in any one of claim 1 to 7, it is characterised in that
The acquisition eyes of user is included with the relative angle of terminal screen：To the eyes relative screen of active user
Position and orientation are identified, and screen attitude is identified；The relative angle is determined according to recognition result.
9. terminal screen display control method as claimed in claim 8, it is characterised in that described pair is worked as
The position and orientation of the eyes relative screen of front user is identified including：By the preposition of terminal screen side
The thermoinduction sensor of photographic head and/or terminal screen side, the position to the eyes relative screen of active user
It is identified with orientation.
10. terminal screen display control method as claimed in claim 8, it is characterised in that described pair of screen
Curtain attitude is identified including：By gyroscope, gravity sensor, one or more of acceleration transducer,
Screen attitude is identified.
11. a kind of terminal screen display control units, it is characterised in that include：
Acquisition module, for obtaining the relative angle of eyes of user and terminal screen；
Processing module, it is for the display parameters of the terminal screen are adjusted according to the relative angle, described aobvious
Show that parameter includes indication range and/or angles of display；
Control module, for the display of the terminal screen is controlled according to the display parameters.
12. terminal screen display control units as claimed in claim 11, it is characterised in that the control
Molding block is used for using grating array technology, lens technologies, one or more pointed in light source technology, root
The display of the terminal screen is adjusted according to the display parameters.
13. terminal screen display control units as claimed in claim 11, it is characterised in that the place
Reason module is adjusted according to the visual parameters for the visual parameters of eyes of user are determined according to the relative angle
The whole display parameters, the visual parameters include visual range and/or visible angle.
14. terminal screen display control units as claimed in claim 11, it is characterised in that described to obtain
If delivery block is additionally operable to obtain the relative angle, screen display control failure is reminded.
15. terminal screen display control units as claimed in claim 11, it is characterised in that the place
If reason module is additionally operable to indication range of the display parameters beyond the terminal screen, screen display is reminded
Control failure.
16. terminal screen display control units as claimed in claim 11, it is characterised in that also include：
Opening module, for selecting according to user, or needs the file attribute for showing, judges whether to need control
The terminal screen shows, if so, then triggers the acquisition module and obtain the relative angle.
17. terminal screen display control units as claimed in claim 11, it is characterised in that described to obtain
Delivery block is used in real time or periodically obtain the relative angle.
The 18. terminal screen display control units as described in any one of claim 11 to 17, its feature exist
In the acquisition module is for being identified to the position and orientation of the eyes relative screen of active user, right
Screen attitude is identified；The relative angle is determined according to recognition result.
19. terminal screen display control units as claimed in claim 18, it is characterised in that described to obtain
Delivery block is used for the thermal sensation inductive sensing of the front-facing camera by terminal screen side and/or terminal screen side
Device, is identified to the position and orientation of the eyes relative screen of active user.
20. terminal screen display control units as claimed in claim 18, it is characterised in that described to obtain
Delivery block be used for by gyroscope, gravity sensor, one or more of acceleration transducer, to screen appearance
State is identified.
21. a kind of terminals, it is characterised in that include the terminal as described in any one of claim 11 to 20
Screen display control device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685762.4A CN106598209A (en) | 2015-10-20 | 2015-10-20 | Terminal screen display control method, device and terminal |
| PCT/CN2016/084326 WO2016197847A2 (en) | 2015-10-20 | 2016-06-01 | Terminal screen display control method and device, and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510685762.4A CN106598209A (en) | 2015-10-20 | 2015-10-20 | Terminal screen display control method, device and terminal |
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| CN106598209A true CN106598209A (en) | 2017-04-26 |
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| CN201510685762.4A Withdrawn CN106598209A (en) | 2015-10-20 | 2015-10-20 | Terminal screen display control method, device and terminal |
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| CN (1) | CN106598209A (en) |
| WO (1) | WO2016197847A2 (en) |
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| CN101488326A (en) * | 2008-01-16 | 2009-07-22 | 宏达国际电子股份有限公司 | Method and apparatus for dynamically regulating visual angle of screen |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463255A (en) * | 2017-07-31 | 2017-12-12 | 努比亚技术有限公司 | A kind of video broadcasting method, terminal and computer-readable recording medium |
| CN108040291A (en) * | 2017-12-21 | 2018-05-15 | 深圳Tcl新技术有限公司 | Display device and its standby controlling method and computer-readable recording medium |
| CN108416231A (en) * | 2018-03-28 | 2018-08-17 | 广东欧珀移动通信有限公司 | Method for secret protection and device, electronic device and computer readable storage medium |
| CN108804897A (en) * | 2018-05-22 | 2018-11-13 | 北京小鱼在家科技有限公司 | Screen control method, device, computer equipment and storage medium |
| CN108804956A (en) * | 2018-05-31 | 2018-11-13 | 出门问问信息科技有限公司 | Screen adjustment method and device based on secret protection |
| CN112799774A (en) * | 2021-04-06 | 2021-05-14 | 北京孵家科技股份有限公司 | Intelligent commodity sale method, device and system based on big data |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016197847A3 (en) | 2017-02-09 |
| WO2016197847A2 (en) | 2016-12-15 |
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