CN103167113A - Anti-peep system and method for automatically adjusting backlight angle of display screen based on angle of human eyes and screen - Google Patents
Anti-peep system and method for automatically adjusting backlight angle of display screen based on angle of human eyes and screen Download PDFInfo
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Abstract
The invention discloses an anti-peep system and a method for automatically adjusting a backlight angle of a display screen based on an angle of human eyes and the screen. The system comprises a mobile phone body, the display screen and a circuit board, wherein the display screen and the circuit board are installed in the mobile phone body. The circuit board is provided with a mobile phone central processing unit (CPU), a microprocessor chip, a vision sensor and an angle sensor. The display screen is connected with the mobile phone CPU through a backlight source. The mobile phone CPU is connected with the vision sensor and the angle sensor through the microprocessor chip. According to the system and the method, through inductive measurement for the angle of the user eyes and the screen, a vision angle of the human eyes and the screen is obtained, an angle of an emergent light of the backlight source of the mobile phone is calculated according to the vision angle, and a liquid crystal molecular angle of the display screen is correspondingly deflected and is in fit with the vision angle of the human eyes. Compared with the prior art, the system and the method can effectively solve the problem that due to the fact that a visual angle of an existing mobile phone screen is large, privacy of the mobile phone is easy to peep by other persons.
Description
Technical field
The invention belongs to smart mobile phone, what be specifically related to is a kind of Anti-peeking system and method for automatically adjusting the display backlight angle based on human eye and screen angle.
Background technology
The mobile phone screen visible angle refers to that the user can clearly observe the angle of all the elements on mobile phone screen from different directions.Due to the mobile phone screen light source after refraction and reflection when output existing certain directivity, watch and will produce the color distortion phenomenon exceeding this scope, the visible angle size has determined that the cellphone subscriber views and admires angle to visual range size and the best of screen.If too little, the user departs from the screen front a little, and picture will be eclipsed.And along with the communication technology, the fast development of Display Technique, present mobile phone screen visible angle is increasing, the visible angle of most products is more than 120 degree in the market, more than portioned product has reached 170 degree, the IPS(In-Plane Switching that mobile phone screen is commonly used, plane conversion) more than the visible angle of technology can reach 178 degree, mean the user mobile phone screen up and down direction all can see screen content.
In the face of the increasing trend of mobile phone screen visible angle on market, also brought a problem, the visual angle means more extensively that the privacy of oneself is easier and is peeped by other people, the user uses private mobile phone to check important information in public, and because the problem of screen visible angle might be spied on by the Peeping Tom on side.We think that a kind of mobile phone screen Anti-peeking system is necessary thus, and can protect to a certain extent cellphone subscriber's privacy.
Summary of the invention
The object of the present invention is to provide a kind of Anti-peeking system and method for automatically adjusting the display backlight angle based on human eye and screen angle, increasing because of the mobile phone screen visible angle at present to solve, and the cellphone subscriber's privacy that exists is easily by problem that other people peep.
The objective of the invention is to be achieved through the following technical solutions.
A kind of Anti-peeking system of automatically adjusting the display backlight angle based on human eye and screen angle, comprise mobile phone body, be arranged on display screen and wiring board in mobile phone body, be provided with mobile phone CPU, microprocessor chip, vision sensor and angular transducer on wherein said wiring board, described display screen is connected with mobile phone CPU by backlight, and described mobile phone CPU is connected with angular transducer with vision sensor respectively by microprocessor chip.
Preferably, this system also includes an algorithm memory, and this algorithm memory is connected with microprocessor chip.
In addition, the present invention also provides a kind of peep-proof method of automatically adjusting the display backlight angle based on human eye and screen angle, comprises step:
The position of A, the corresponding perception eyes of user of mobile phone vision sensor, angular transducer carries out measurement of inductance to human eye and the angle between screen of this position, obtains angle value;
B, micro-chip processor are processed above-mentioned angle value, and call algorithm routine in algorithm memory, obtain the control command under this angle value;
C, above-mentioned control command send to mobile phone CPU by micro-chip processor, and the mobile phone CPU luminous shooting angle of controlling backlight corresponding to this control command carries out deflection, it deflected into consistent with eyes of user angle of living in.
Preferably, steps A comprises:
The position of the corresponding perception eyes of user of mobile phone vision sensor, angular transducer is measured in real time to the human eye of this position and the angle between screen simultaneously, and calculate obtain human eye to the numerical value of screen angle.
Preferably, step B specifically comprises:
Micro-chip processor obtains above-mentioned angle value, calls simultaneously the algorithm routine in algorithm memory, and this angle value corresponding input respective function and algoritic module are calculated, and obtains human eye and screen and is in control command under this angle.
Preferably, step C specifically comprises:
Mobile phone CPU controls the corresponding deflection of emergent light orientation angle of backlight according to above-mentioned control command, and the corresponding generation of display screen liquid crystal display molecule angular deflection, its yawing moment is consistent with user's human eye angle direction of living in.
The present invention obtains the visual angle of human eye and screen, and goes out the emergent light angle of mobile phone backlight according to this angle calculation by the measurement of inductance to user's human eye and screen angle, makes the corresponding deflection of display screen liquid crystal molecule angle, and is consistent with the human eye vision angle.Compared with prior art, the present invention is different according to the human eye vision angle, can realize checking of contents of mobile phone screen under this angle, can't see contents of mobile phone screen at other visual angles, effectively avoided because at present the mobile phone screen visible angle is large, and the cellphone subscriber's privacy that exists is easily by problem that other people peep.
Description of drawings
Fig. 1 is system principle diagram of the present invention.
Fig. 2 is workflow diagram of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
See also shown in Figure 1ly, Fig. 1 is system principle diagram of the present invention.The invention provides a kind of Anti-peeking system of automatically adjusting the display backlight angle based on human eye and screen angle, this system includes mobile phone body, is arranged on display screen and wiring board in mobile phone body, is provided with mobile phone CPU, microprocessor chip, vision sensor and angular transducer on wherein said wiring board.
Wherein under display screen, backlight is installed, and is connected with mobile phone CPU by backlight, mobile phone CPU is connected with microprocessor chip, and described microprocessor chip is connected with vision sensor, angular transducer and algorithm memory respectively.
The vision sensor user catches active user's human eye position; Angular transducer carries out angle and detects when being in current location for human eye, obtains under current state, and the angle between human eye and mobile phone display screen, the vertical angle that wherein takes measurement of an angle between human eye and screen is line of reference; Algorithm memory is connected with microprocessor chip, store calculation procedure and algorithmic function under different angles, and calculate backlight deflection angle and deflection angle corresponding to display screen liquid crystal display molecule under this angle according to different angles, to meet the visual angle of watching of human eye.
The present invention is only in the situation that current human eye vision angle and backlight deflection angle, liquid crystal display molecule deflection angle are consistent, just can see the displaying contents on the mobile phone display screen curtain clearly, can't see clearly for other people under this visual angle not, so this system can prevent effectively that other people from spying on the displaying contents of user mobile phone.
Be more than the explanation of automatically adjusting the Anti-peeking system of display backlight angle based on human eye and screen angle to of the present invention, below in conjunction with Fig. 2, the peep-proof method of automatically adjusting the display backlight angle based on human eye and screen angle of the present invention be further described.
See also shown in Figure 2ly, Fig. 2 is workflow diagram of the present invention.The present invention also provides a kind of peep-proof method of automatically adjusting the display backlight angle based on human eye and screen angle, comprises step:
At first set calculation procedure corresponding to the different visual angles of user's human eye, corresponding stored according to the human eye vision angle of input, can calculate the deflection angle of backlight and liquid crystal display molecule by this calculation procedure in algorithm memory.
The position of A, the corresponding perception eyes of user of mobile phone vision sensor, angular transducer carries out measurement of inductance to human eye and the angle between screen of this position, obtains angle value;
The position of the corresponding perception eyes of user of mobile phone vision sensor, angular transducer is measured in real time to the human eye of this position and the angle between screen simultaneously, and calculate obtain human eye to the numerical value of screen angle.Because the angle of above-mentioned measurement human eye and screen is real-time, therefore no matter how cellphone subscriber's eyes change, and the demonstration of mobile phone screen is towards all towards cellphone subscriber's eyes.
B, micro-chip processor are processed above-mentioned angle value, and call algorithm routine in algorithm memory, obtain the control command under this angle value;
Micro-chip processor obtains above-mentioned angle value, calls simultaneously the algorithm routine in algorithm memory, and this angle value corresponding input respective function and algoritic module are calculated, and obtains human eye and screen and is in control command under this angle.
C, above-mentioned control command send to mobile phone CPU by micro-chip processor, and the mobile phone CPU luminous shooting angle of controlling backlight corresponding to this control command carries out deflection, it deflected into consistent with eyes of user angle of living in.
Mobile phone CPU controls the corresponding deflection of emergent light orientation angle of backlight according to above-mentioned control command, and the corresponding generation of display screen liquid crystal display molecule angular deflection, its yawing moment is consistent with user's human eye angle direction of living in.
Liquid crystal display molecule in mobile phone screen is to realize rotation by different voltage control, in conjunction with single direction light source (backlight), control its rotation by programmed algorithm, after linear light was injected the liquid crystal display molecule, light can be followed the rotation of liquid crystal molecule and be produced rotation.
Operation principle of the present invention is: mobile phone vision and angular transducer gather the angle of human eye and mobile phone screen, then the information data that collects is given microprocessor chip, this chip calls program and the algorithm in algorithm memory, the data that collect are done analyzing and processing, and the data message after processing is given micro-chip processor; Micro-chip processor sends instruction to mobile phone CPU, mobile phone CPU controls backlight and the screen liquid crystal molecule rotates, form and see with eyes of user the display interface that the display screen angle is consistent, this moment, the user can only see that the mobile phone screen of this angle shows, other any angle all can't view screen content, effectively prevent the situation that the mobile phone displaying contents is spied on, improved the Information Security of mobile phone.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. Anti-peeking system of automatically adjusting the display backlight angle based on human eye and screen angle, comprise mobile phone body, be arranged on display screen and wiring board in mobile phone body, it is characterized in that being provided with on described wiring board mobile phone CPU, microprocessor chip, vision sensor and angular transducer, described display screen is connected with mobile phone CPU by backlight, and described mobile phone CPU is connected with angular transducer with vision sensor respectively by microprocessor chip.
2. the Anti-peeking system of automatically adjusting the display backlight angle based on human eye and screen angle according to claim 1, characterized by further comprising an algorithm memory, and this algorithm memory is connected with microprocessor chip.
3. peep-proof method of automatically adjusting the display backlight angle based on human eye and screen angle is characterized in that comprising step:
The position of A, the corresponding perception eyes of user of mobile phone vision sensor, angular transducer carries out measurement of inductance to human eye and the angle between screen of this position, obtains angle value;
B, micro-chip processor are processed above-mentioned angle value, and call algorithm routine in algorithm memory, obtain the control command under this angle value;
C, above-mentioned control command send to mobile phone CPU by micro-chip processor, and the mobile phone CPU luminous shooting angle of controlling backlight corresponding to this control command carries out deflection, it deflected into consistent with eyes of user angle of living in.
4. the peep-proof method of automatically adjusting the display backlight angle based on human eye and screen angle according to claim 3 is characterized in that steps A comprises:
The position of the corresponding perception eyes of user of mobile phone vision sensor, angular transducer is measured in real time to the human eye of this position and the angle between screen simultaneously, and calculate obtain human eye to the numerical value of screen angle.
5. the peep-proof method of automatically adjusting the display backlight angle based on human eye and screen angle according to claim 3 is characterized in that step B specifically comprises:
Micro-chip processor obtains above-mentioned angle value, calls simultaneously the algorithm routine in algorithm memory, and this angle value corresponding input respective function and algoritic module are calculated, and obtains human eye and screen and is in control command under this angle.
6. the peep-proof method of automatically adjusting the display backlight angle based on human eye and screen angle according to claim 3 is characterized in that step C specifically comprises:
Mobile phone CPU controls the corresponding deflection of emergent light orientation angle of backlight according to above-mentioned control command, and the corresponding generation of display screen liquid crystal display molecule angular deflection, its yawing moment is consistent with user's human eye angle direction of living in.
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| CN103384294A (en) * | 2013-06-28 | 2013-11-06 | 宇龙计算机通信科技(深圳)有限公司 | Method for adjusting visual angle of screen and mobile terminal of method |
| CN104392706A (en) * | 2014-12-16 | 2015-03-04 | 京东方科技集团股份有限公司 | Correction method and correction device for curved surface displaying and curved surface display equipment |
| CN104732168A (en) * | 2015-03-20 | 2015-06-24 | 京东方科技集团股份有限公司 | Display system and control method |
| CN105516580A (en) * | 2014-10-15 | 2016-04-20 | 中兴通讯股份有限公司 | Method for using preposition camera head of terminal to shoot and terminal |
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| CN106448521A (en) * | 2016-09-14 | 2017-02-22 | 山东师范大学 | Anti-peeping display method and system thereof |
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| CN108847198A (en) * | 2018-06-22 | 2018-11-20 | 珠海格力电器股份有限公司 | A kind of control method, system and the line control machine of terminal display interface visible angle |
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| CN104392706A (en) * | 2014-12-16 | 2015-03-04 | 京东方科技集团股份有限公司 | Correction method and correction device for curved surface displaying and curved surface display equipment |
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| CN106448521A (en) * | 2016-09-14 | 2017-02-22 | 山东师范大学 | Anti-peeping display method and system thereof |
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| US11334150B2 (en) | 2017-09-22 | 2022-05-17 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Method and device for controlling screen viewing angle and flexible display device |
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| CN108416235A (en) * | 2018-03-30 | 2018-08-17 | 百度在线网络技术（北京）有限公司 | The anti-peeping method, apparatus of display interface, storage medium and terminal device |
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| CN108847198A (en) * | 2018-06-22 | 2018-11-20 | 珠海格力电器股份有限公司 | A kind of control method, system and the line control machine of terminal display interface visible angle |
| CN111370440A (en) * | 2018-12-25 | 2020-07-03 | 中兴通讯股份有限公司 | Display screen, display device and control method thereof |
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Application publication date: 20130619 |