WO2019080936A1

WO2019080936A1 - Mobile terminal and driving method therefor

Info

Publication number: WO2019080936A1
Application number: PCT/CN2018/112197
Authority: WO
Inventors: 吴安平; 杨浪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-10-27
Filing date: 2018-10-26
Publication date: 2019-05-02

Abstract

A mobile terminal (10) and a driving method therefor, the mobile terminal (10) comprising a housing (110) and a structured light module (120); the structured light module (120) is disposed in the interior of the housing (110) of the mobile terminal (10), the housing (110) being provided with an opening portion (121) at a position corresponding to the structured light module (120) such that the structured light module (120) receives and/or transmits structured light by means of the opening portion (121); the opening portion (121) is covered by a light-transmitting medium (123) of a surface coating layer (122).

Description

Mobile terminal and driving method thereof

Cross-reference to related applications

The application is based on the Chinese patent application with the application number of 201711025731.1, the application date is October 27, 2017, and the application number is 201810366331.5, the application date is April 20, 2018, the Chinese patent application and the application number is 201820584741.2, and the application date is 2018. The Chinese patent application filed on Apr. 23, the entire disclosure of which is hereby incorporated by reference in its entirety in the entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire entire all all all all all all all each

Technical field

The present application relates to the field of mobile terminal technologies, and in particular, to a mobile terminal and a driving method thereof.

Background technique

With the development of mobile terminal technology, structured light technology is gradually being applied to mobile terminals. However, in the mobile terminal that uses the structured light technology to take pictures, there are many openings on the outer casing, which affects the aesthetics of the mobile terminal.

Summary of the invention

The present application is intended to address at least one of the technical problems existing in the prior art. To this end, the present application provides a mobile terminal having a structured optical module and a driving method thereof, so that the structured optical module disposed in the mobile terminal is invisible to the user, reducing the number of openings on the screen of the mobile terminal, and enhancing the design effect. The invention improves the aesthetics of the mobile terminal, and solves the technical problem in the prior art that the appearance is poor due to the large opening on the mobile terminal.

In the mobile terminal having the structured light module of the embodiment of the present invention, the structured light module is disposed inside the outer casing of the mobile terminal, and the outer casing is provided with an opening portion corresponding to the position of the structured optical module, so that the structured optical module passes The opening receives and/or emits structured light; the opening is covered with a light transmissive medium coated with a surface.

The driving method of the embodiment of the present application is used to drive the mobile terminal having the structured optical module described in the foregoing embodiment, and the method includes:

Determining the light transmittance of the light transmitting medium;

The driving current of the structured light emitter is adjusted according to the light transmittance.

A computer device according to an embodiment of the present application includes a memory, a processor, and a computer program stored on the memory and operable on the processor, and when the processor executes the program, the driving method according to the foregoing embodiment is implemented.

A computer readable storage medium according to an embodiment of the present application, wherein a computer program is stored thereon, and when the program is executed by the processor, the driving method according to the foregoing embodiment is implemented.

The mobile terminal having the structured light module and the driving method thereof are disposed in the outer casing of the mobile terminal, and the optical module of the outer casing is provided with an opening portion so that the structured optical module receives and passes through the opening. / or emit structured light, the opening is covered with a light-transmissive medium coated with a surface coating. In this embodiment, by covering the opening portion of the corresponding structural optical module on the outer casing with the transparent medium, the surface of the transparent medium is coated with the coating, so that the opening of the corresponding optical module on the outer casing can be hidden, thereby reducing The number of openings on the screen of the mobile terminal enhances the design effect and improves the aesthetics of the mobile terminal, thereby solving the technical problem in the prior art that the appearance is poor due to the large opening on the mobile terminal.

Additional aspects and advantages of the present invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from

1 is a schematic structural diagram of a mobile terminal having a structured optical module according to an embodiment of the present application;

2 is a schematic view showing two openings corresponding to a structured light emitter and a structured light receiver;

3 is a schematic structural diagram of a mobile terminal with a structured optical module according to another embodiment of the present application;

4 is a schematic flowchart of a driving method according to an embodiment of the present application; and

FIG. 5 is a schematic structural diagram of a computer device according to an embodiment of the present application

FIG. 6 is a schematic partial structural diagram of a mobile terminal according to an embodiment of the present application; FIG.

7 is a cross-sectional view of a mobile terminal in accordance with an embodiment of the present application;

Figure 8 is a partial enlarged view of the circle A in Figure 7.

Reference mark:

Mobile terminal 10,

The housing 110, the structured light module 120, the structured light receiver 1201, the structured light emitter 1202, the opening 121, the coating 122, the transparent medium 123, the receiver 124,

Drive circuit 130, processing unit 131, drive unit 132, power supply circuit 133, circuit board 134,

Computer device 50, memory 501, processor 502, computer program 503,

Glass cover 101,

Infrared light emitter 102, floodlight 1021, laser emitter 1022,

Infrared light receiver 103, infrared light absorbing layer 104, ink layer 105, camera 106.

Detailed ways

The embodiments of the present application are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative only, and are not to be construed as limiting.

A mobile terminal 10 having a structured optical module 120 and a driving method thereof according to an embodiment of the present application will be described below with reference to FIGS.

FIG. 1 is a schematic structural diagram of a mobile terminal 10 having a structured optical module 120 according to an embodiment of the present application.

As shown in FIG. 1, the mobile terminal 10 having a structured optical module includes a housing 110 and a structured optical module 120. The structured light module 120 is disposed inside the outer casing 110 of the mobile terminal 10, and the outer casing 110 is provided with an opening portion 121 corresponding to the structural light module 120, so that the structured light module 120 receives and/or emits structured light through the opening portion 121.

In this embodiment, in order to solve the problem that the opening is large and the appearance is affected, the opening portion 121 disposed on the outer casing 110 corresponding to the position of the structural light module 120 is covered with the transparent medium 123 of the surface coating layer 122 (in FIG. 1 Not shown). For the user, due to the coating 122 coated on the surface of the transparent medium 123, the visual perception of the opening can be weakened, especially when the color of the coating 122 is consistent with the color of the outer casing 110, the effect of the weakening of the opening is more obvious, so that the user It is not easy to detect the opening. For structured light, the structured light emitted by the structured light module 120 can pass through the transparent medium 123 to reach the object, and/or the structured light module 120 can receive the structured light through the transparent medium 123, thereby the transparent medium 123 does not affect the structure light emission and reception.

As a possible implementation, the coating 122 coated on the surface of the transparent medium 123 may be an IR ink, which is a light transmissive ink that allows infrared rays to pass through to block visible light. For infrared light with a wavelength of 940 nm (structured light is infrared light), the transmittance of the IR ink can reach 90% or more, and for visible light having a wavelength of 400 nm to 750 nm, the transmittance of the IR ink is about It is 2% to 10%, and thus, the IR ink is coated on the surface of the light-transmitting medium 123, and it is ensured that the light transmittance of the structured light is hardly affected, and the object that is invisible to the user is achieved.

It should be noted that other materials may be used as the coating layer 122 by those skilled in the art, which is not limited in this embodiment.

On the basis of the previous embodiment, in the embodiment of the present application, at least two openings 121 may be provided. When the two openings 121 are provided on the outer casing 110, one of the two openings 121 may be opened. Corresponding to the structured light emitter 1202 of the structured light module 120, the structured light emitter 1202 emits structured light through one opening portion 121, and the other of the two opening portions 121 corresponds to the structured light of the structured light module 120. The receiver 1201 causes the structured light receiver 1201 to receive structured light through the other opening portion 121.

As an example, FIG. 2 is a schematic diagram of two opening portions 121 corresponding to the structured light emitter 1202 and the structured light receiver 1201, respectively. As shown in FIG. 2, a total of four openings are provided on the black housing 110 of the mobile terminal, respectively, corresponding to the opening corresponding to the camera 106, the corresponding opening of the structured light receiver 1201, the corresponding opening of the receiver 124, and the corresponding opening of the structured light emitter 1202. The opening corresponding to the structured light emitter 1202 and the corresponding opening of the structured light receiver 1201 are respectively located on opposite sides of the corresponding opening of the receiver 124. For the two openings corresponding to the structured light emitter 1202 and the structured light receiver 1201, the two openings are covered by the light transmissive medium 123 of the surface coating layer 122, due to the coating 122 coated on the light transmissive medium 123 for visible light The light transmittance is low, so for the human eye, the two openings corresponding to the structured light emitter 1202 and the structured light receiver 1201 are black (to distinguish from the black outer casing 110, two openings in FIG. 2) Set to gray, it should be black). Since the outer casing 110 of the mobile terminal 10 is also black, the two openings of the transparent medium 123 covered with the surface coating layer 122 are invisible to the naked eye, as actually seen by the user as shown in FIG. The housing 110 has only two openings corresponding to the camera 106 and the receiver 124, which is more beautiful.

The light transmittance of the light-transmitting medium 123 of the surface coating layer 122 is calculated as 90%, when the two opening portions 121 correspond to the structure light emitter 1202 and the structure light receiver 1201, respectively, and both opening portions 121 are When the light-transmissive medium 123 of the surface coating layer 122 is covered, the light transmittance of the structured light is only 81%, and the intensity of the infrared light received by the structured light receiver 1201 is weakened, and in order to achieve the desired infrared intensity requirement, it may be appropriate at this time. The transmit power of the structured light emitter 1202 is increased.

After the transparent medium 123 of the surface coating layer 122 is added, in order to ensure the imaging effect of the structured light, the emission process of the structured light can be controlled to appropriately enhance the emitted structured light intensity, in the first embodiment of the present application. In a possible implementation manner, as shown in FIG. 3, on the basis of the embodiment shown in FIG. 1, the mobile terminal 10 may further include:

The driving circuit 130 is configured to adjust the driving current of the structured light emitter 1202 according to the transmittance of the transparent light 123 to the structured light.

Specifically, the drive circuit 130 includes a processing unit 131 and a drive unit 132. The mobile terminal 10 may be provided with a power supply circuit 133 and a circuit board 134 to implement power supply.

The processing unit 131 is electrically connected to the structured light receiver 1201 and the driving unit 132, and is configured to determine the structured light receiver 1201 according to the receiving when the driving unit 132 is configured to transmit the structured light by the first current driving structure light emitter 1202. The second current generated by the structured light is determined according to the first current and the second current, and the transmittance of the transparent medium 123 to the structured light is determined, thereby calculating the percentage difference between the transmittance and the expected value.

The driving unit 132 is configured to increase the driving current of the structured light emitter 1202 to the third current to match the percentage difference between the first current and the third current to the percentage difference between the transmittance and the expected value.

In this embodiment, after the driving unit 132 emits the structured light by the first current driving structure light emitter 1202, the structured light reaches the obstacle and then emits the reflection, the structured light receiver 1201 receives the reflected structured light, and the processing unit according to the structured light receiver The received structured light of 1201 determines a corresponding second current, and further calculates a ratio of the second current to the first current, obtains a transmittance of the transparent medium 123 for the structured light, and further calculates a difference between the transmittance and the expected value. The percentage of the value. When the calculated transmittance is lower than the expected value, the driving unit 132 increases the driving current of the transmitter to the third current so that the percentage difference between the first current and the third current is between the transmittance and the expected value. The difference percentage matches.

By increasing the drive current at a lower transmittance to increase the transmit power of the structured light emitter 1202, it can be ensured that the infrared intensity received by the structured light receiver 1201 satisfies the desired infrared intensity.

As shown in FIGS. 6-8, the outer casing includes a cover glass 101, the structured light module 120 includes a structured light emitter 1202 and a structured light receiver 1201, and the structured light emitter 1202 is the infrared emission shown in FIGS. 6-8. The structured light receiver 1201 is the infrared receiver 103 shown in FIGS. 6-8. The infrared emitter 102 and the infrared receiver 103 are both disposed inside the glass cover 101, and the infrared light receiver 103 and the infrared light are provided. The emitters 102 are spaced apart, and the inner side of the cover glass 101 is provided with an infrared light absorbing layer 104, and a portion of the infrared light absorbing layer 104 opposite to the infrared light emitter 102 and the infrared light receiver 103 is hollowed out.

For example, the infrared light absorbing layer 104 may be directly attached to the inner side surface of the cover glass 101, that is, the infrared light absorbing layer 104 is disposed between the cover glass 101 and the infrared light emitter 102 and the infrared light receiver 103.

It should be noted that the “opening” in the embodiment of the present application may be a through hole, and may of course be configured to have a plurality of fine pores.

The infrared light emitter 102 is disposed on the mobile terminal 10 according to the present application, and the infrared light emitter 102 can emit infrared light. When the mobile terminal 10 is used, the infrared light emitter 102 can illuminate the surface of the object with infrared light. The surface of the object may be reflected, and the reflected infrared light may be received by the infrared light receiver 103 on the mobile terminal 10. The infrared light receiver 103 analyzes and calculates the infrared light after receiving the infrared light, so that the mobile terminal 10 can form an object. The signal of the surface profile, the mobile terminal 10 compares the signal with the contour data of the surface of the object in the database to unlock the mobile terminal 10.

Alternatively, the above working principle can be applied to face recognition or unlocking of the mobile terminal 10. The infrared light emitter 102 can illuminate the infrared light to the face, the infrared light can be reflected on the face, the reflected infrared light can be received by the infrared light receiver 103 on the mobile terminal 10, and the infrared light receiver 103 receives the infrared light. After the infrared light is analyzed and calculated, the mobile terminal 10 can form a contour signal of the face, and the mobile terminal 10 compares the signal with the contour data of the face in the database. If the comparison result is consistent, the mobile terminal 10 can be unlocked.

During use of the mobile terminal 10, the cover glass 101 may be covered with dirt. When the infrared light emitted by the infrared light emitter 102 is irradiated to the dirt, the dirt will reflect a part of the infrared light, which is partially reflected. Infrared light can be mistakenly entered into the infrared light receiver 103, resulting in the mobile terminal 10 not being able to correctly calculate and recognize the contour of the object. When the device is used for face unlocking, the accuracy of the mobile terminal 10 to the user's face recognition is greatly reduced.

At the same time, after the infrared light is reflected by the dirt, the infrared light may be reflected multiple times in the casing of the mobile terminal 10 until the infrared light is received by the infrared light receiver 103, and the infrared light that has been reflected by mistake causes the mobile terminal 10 to use The recognition accuracy of the face is greatly reduced.

According to the mobile terminal 10 of the present application, an infrared light absorbing layer 104 is disposed on the inner side surface of the cover glass 101, and the infrared light absorbing layer 104 can absorb infrared light reflected by the dirt on the glass cover 101 to avoid false reflected infrared rays. The light is received by the infrared light receiver 103, affecting infrared image effects and depth detection information.

The portion of the infrared light absorbing layer 104 facing the infrared light emitter 102 is hollowed out, and the infrared light emitted by the infrared light emitter 102 directly passes through the infrared light absorbing layer 104 to ensure that the infrared light can be irradiated onto the user's face.

Thereby, an infrared light absorbing layer 104 is disposed inside the glass cover plate 101, and the infrared light absorbing layer 104 can absorb infrared light that is erroneously reflected by the glass cover plate 101 to prevent the falsely reflected infrared light from being received by the infrared light receiver 103. The factors affecting the infrared image effect and the depth detection information are excluded, and the image processing quality of the structured light module is improved.

For example, the infrared light receiver 103 can correctly receive the infrared light reflected by the user's face, reduce the influence of the dirt on the glass cover 101 on the infrared light receiver 103, and improve the mobile terminal 10 to the user's face. The accuracy of the identification.

According to an embodiment of the present application, the mobile terminal 10 further includes an ink layer 105 disposed on an inner side of the infrared light absorbing layer 104, and the ink layer 105 is opposite to the infrared light emitter 102 and the infrared light receiver 103. Partially hollowed out.

The cover glass 101 is generally made of a transparent material. When the mobile terminal 10 is used, the user can observe the components under the cover glass 101 through the cover glass 101. The ink layer 105 has the characteristics of being opaque and can be used for shielding. The components under the cover glass 101 are used to make the mobile terminal 10 more beautiful and tidy, so as to improve the user experience.

The ink layer 105 may be disposed inside the infrared light absorbing layer 104, and the infrared light absorbing layer 104 may absorb the infrared light reflected by the dirt on the glass cover 101 to prevent the infrared light from being stained on the glass cover 101 and the ink layer 105. Multiple reflections occur between the infrared light received by the erroneous reflection to further enter the infrared light receiver 103, further reducing the interference received by the infrared light receiver 103, eliminating factors affecting the infrared image effect and depth detection information, and improving the structure. Optical module image processing quality. For example, the mobile terminal 10 can be effectively recognized by the user's face in different dirty states, which greatly improves the accuracy of the mobile terminal 10 to the user's face recognition.

According to an embodiment of the present application, the infrared light emitters 102 are plural, and the plurality of infrared light emitters 102 are spaced apart, and the plurality of infrared light emitters 102 are spaced apart to enable the infrared light to emit more angles. Infrared light increases the infrared spot that is illuminated on the user's face, while the infrared light is more evenly distributed on the user's face, and the infrared light emitted by the infrared light emitter 102 can more completely cover the user's face to make the movement The terminal 10 can receive more comprehensive information of the user's face, and improve the accuracy of the mobile terminal 10's recognition of the user's face.

The infrared light emitter 102 includes a first infrared light emitter and a second infrared light emitter. The first infrared light emitter may be a floodlight 1021, the floodlight 1021 may be used to emit infrared light, and the infrared light emitted by the floodlight 1021 may have a wider illumination range, and the infrared light may be more uniformly illuminated to the user. The face is such that the infrared light receiver 103 can collect more and more complete data, which improves the recognition accuracy of the mobile terminal 10 to the user's face.

The second infrared light emitter may be a laser emitter 1022, and the laser emitter 1022 is spaced apart from the floodlight 1021. The laser emitter 1022 may emit infrared light of the same wavelength as the floodlight 1021, and the laser emitter 1022 emits The infrared light and the infrared light emitted by the floodlight 1021 are simultaneously irradiated on the face of the person. Since the laser emitter 1022 is spaced apart from the floodlight 1021, the infrared light has more different incidents after being reflected by the human face. The angle, by the calculation of the mobile terminal 10, can make the facial contour of the user recognized in the mobile terminal 10 more stereoscopic.

Simultaneously setting the floodlight 1021 and the laser emitter 1022 can form a binocular effect on the mobile terminal 10, improve the recognition accuracy of the mobile terminal 10 to the user's face, and improve the recognition quality of the user's face in the mobile terminal 10.

According to an embodiment of the present application, the infrared light receiver 103 is an infrared light receiving camera, and the infrared light receiver 103 can receive infrared light, thereby effectively avoiding interference of electromagnetic waves of other wavelengths on the infrared light receiver 103 to further improve the movement. The accuracy of the terminal 10 for human face recognition.

According to an embodiment of the present application, the mobile terminal 10 further includes a camera 106. The camera 106 is disposed inside the infrared light absorbing layer 104, and the portion of the infrared light absorbing layer 104 facing the camera 106 is hollowed out, and the camera on the mobile terminal 10 is provided. 106 can be used to receive visible light for the camera and camera function of the mobile terminal 10; the hollowed out portion of the infrared light absorbing layer 104 and the camera 106 can be configured to prevent the infrared light absorbing layer 104 from blocking the camera 106, and the camera 106 is ensured. The amount of light entering is sufficient to improve the photographing effect of the camera 106. Alternatively, the camera 106 may be a front camera and the glass cover 102 may be a front glass cover.

According to an embodiment of the present application, the camera 106 is disposed inside the ink layer 105, and portions of the ink layer 105 and the infrared light absorbing layer 104 that face the camera 106 are hollowed out. Since the ink layer 105 can block visible light, the portion of the ink layer 105 that faces the camera 106 is hollowed out so that visible light passes through the ink layer 105 to be received by the camera 106, ensuring that the camera 106 operates normally.

According to the camera 106 on the mobile terminal 10 of the present application, the RGB camera has a wide color gamut, stable and reliable operation, and low cost, and the use effect of the mobile terminal 10 can be further improved.

According to one embodiment of the present application, the infrared light emitter 102 includes a floodlight 1021 and a laser emitter 1022. The infrared light receiver 103, the floodlight 1021, the camera 106, and the laser emitter 1022 are sequentially spaced apart.

The arrangement of the floodlight 1021, the laser emitter 1022, the infrared light receiver 103, and the camera 106 can avoid interference between the floodlight 1021, the laser emitter 1022, the infrared light receiver 103, and the camera 106, and reduce the floodlight. 1011, the interaction between the laser emitter 1022, the infrared light receiver 103, the camera 106 and the like ensure that each component has a stable working environment to improve the floodlight 1021, the laser emitter 1022, and the infrared light receiving. The effect of the cooperative operation between the device 103 and the camera 106.

According to an embodiment of the present application, one of the infrared light receiver 103 and the laser emitter 1022 is disposed at the leftmost end, and the other of the infrared light receiver 103 and the laser emitter 1022 is disposed at the rightmost end, the floodlight 1021 and The camera 106 may be disposed between the infrared light emitter 102 and the laser emitter 1022. Since the distance between the laser emitter 1022 and the infrared light receiver 103 needs to meet certain conditions, under this condition, the laser emitter 1022 and the infrared The light receiver 103 is disposed at both ends, and the floodlight 1021 and the camera 106 can be disposed between the infrared light emitter 102 and the laser emitter 1022 to ensure that the space occupied by the arrangement of the four components is minimized.

The floodlight 1021 and the camera 106 are disposed between the infrared light emitter 102 and the laser emitter 1022, which can reduce the space occupied by the floodlight 1021, the laser emitter 1022, the infrared light receiver 103, and the camera 106, thereby improving The screen ratio of the mobile terminal 10 makes the mobile terminal 10 more beautiful.

According to an embodiment of the present application, the infrared light absorbing layer 104 can absorb the infrared light having a wavelength range greater than the infrared light emitted by the infrared light emitter 102, and ensure that the infrared light absorbing layer 104 can absorb the false reflected infrared light. It is further prevented that the infrared light receiver 103 receives the infrared light that has been reflected by mistake.

According to an embodiment of the present application, the glass cover 101 is a front glass cover 101, and the front glass cover 101 is disposed on the front side of the mobile terminal 10.

According to an embodiment of the present application, the glass cover 101 is disposed on the front panel of the mobile terminal 10. The glass cover 101 has wear-resistant and light-transmitting characteristics, which can effectively improve the service life of the mobile terminal 10 and optimize the user's The touch feeling, the floodlight 1021, the laser emitter 1022, the infrared camera 106, and the camera 106 may all be disposed on the upper side of the front panel, and the floodlight 1021, the laser emitter 1022, the infrared camera 106, and the camera 106 are integrated in the movement. The upper side of the terminal 10 further improves the integration degree of the mobile terminal 10, and increases the screen ratio of the mobile terminal 10. At the same time, the integrated arrangement of the floodlight 1021, the laser emitter 1022, the infrared light receiver 103, and the camera 106 can be improved. Assembly efficiency of the mobile terminal 10.

According to an embodiment of the present application, the floodlight 1021 and the laser emitter 1022 are disposed in the glass cover 101 and located on the upper side of the mobile terminal 10. The floodlight 1021 and the laser emitter 1022 can simultaneously emit infrared light. The infrared light sequentially passes through the ink layer 105, the infrared light absorbing layer 104 and the glass cover 101, and is irradiated to the face of the user. Part of the infrared light passes through the ink layer 105 and the infrared light absorbing layer 104, and is then on the glass cover 101. The dirty reflection, the reflected infrared light irradiation on the infrared light absorbing layer 104 can be absorbed to prevent interference with the infrared light receiver 103.

After the infrared light is irradiated onto the user's face, the infrared light is sequentially passed through the glass cover 101, the infrared light absorbing layer 104 and the ink layer 105 are received by the infrared light receiver 103, and the infrared light receiver 103 can receive infrared rays at different angles. The light, infrared light receiver 103 converts the received infrared light into a digital signal, and after the calculation process of the mobile terminal 10, forms facial contour data of the user, and the facial contour data can be pre-stored in the database of the mobile terminal 10. The facial contour data is compared. When the data received by the infrared light receiver 103 is substantially the same as the data in the database, the mobile terminal 10 can be unlocked, which greatly improves the security of the mobile terminal 10.

It should be noted that the provision of the infrared light absorbing layer 104 does not affect the normal emission and absorption of the infrared rays because the portion of the infrared light absorbing layer 104 facing the component is hollowed out.

According to an embodiment of the present application, the mobile terminal 10 may be a mobile phone or a tablet.

According to the mobile phone or tablet computer of the present application, the infrared light absorbing layer 104 is disposed on the inner side of the glass cover 101, so that the recognition accuracy of the face of the user by the mobile phone or the tablet computer is greatly improved.

In order to more clearly describe the specific driving process of the mobile terminal having the structured optical module of the present embodiment, the mobile terminal is applied to implement a driving method for explanation. 4 is a schematic flowchart of a driving method according to an embodiment of the present application.

As shown in FIG. 4, the driving method includes the following steps:

In step 201, the light transmittance of the transparent medium 123 is determined.

In order to accurately determine whether the driving unit 132 in the above embodiment needs to be driven to increase the driving current of the structured light emitter 1202, it is necessary to first determine the transparent medium 123 covered on the opening of the corresponding optical module 120 disposed on the outer casing 110. Transmittance.

Specifically, when the structured light is emitted by the first current driving structure light emitter 1202, the second current generated by the structured light receiver 1201 according to the received structured light may be determined, and then determined according to the first current and the second current. The transmittance of the optical medium 123 to the structured light.

Among them, the transmittance can be calculated by the formula (1).

Transmittance = (second current / first current) * 100% (1)

Step 202, adjusting the driving current of the structured light emitter 1202 according to the light transmittance.

In this embodiment, after the transmittance of the transparent medium 123 is determined, the driving current of the structured light emitter 1202 can be adjusted according to the transmittance.

Specifically, the percentage difference between the transmittance and the expected value may be calculated first, and the driving current of the structured light emitter 1202 is increased to a third current so that the percentage difference between the first current and the third current is transparent. The percentage difference between the rate and the expected value matches.

Among them, the expected value is a desired transmittance, which can be set in advance at the time of production and manufacture of the mobile terminal. The third current can be calculated by the formula (2).

After the third current is determined, the drive current of the structured light emitter 1202 is adjusted to a third current by the drive unit 132 to achieve the desired infrared intensity.

The mobile terminal of the specific structure optical module of the embodiment is configured to be disposed inside the outer casing of the mobile terminal, and the optical module of the outer casing is provided with an opening portion 121 for receiving and/or transmitting the structured optical module through the opening portion 121. The structured light, the opening portion 121 is covered with a light transmissive medium 123 having a surface coating layer 122. In this embodiment, by covering the opening portion 121 of the corresponding structural optical module on the outer casing with the transparent medium 123, since the surface of the transparent medium 123 is coated with the coating 122, the opening of the corresponding structural optical module on the outer casing can be made. The portion 121 is hidden, which reduces the number of openings on the screen of the mobile terminal, enhances the design effect, and improves the aesthetics of the mobile terminal, thereby solving the technical problem in the prior art that the appearance is poor due to the large opening on the mobile terminal.

In order to implement the above embodiments, the present application also proposes a computer device.

FIG. 5 is a schematic structural diagram of a computer device according to an embodiment of the present application. As shown in FIG. 5, the computer device 50 includes a memory 501, a processor 502, and a computer program 503 stored on the memory 501 and operable on the processor 502. When the processor 502 executes the program, the implementation is as described in the foregoing embodiment. The driving method described.

In order to implement the above embodiments, the present application also provides a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the driving method as described in the foregoing embodiments.

In the description of the present application, it is to be understood that the orientation or positional relationship of the terms "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, for convenience of description of the present application and simplified description. It is not intended to be a limitation or limitation of the invention.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the application. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

Any process or method description in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logic function or process. And the scope of the preferred embodiments of the present application includes additional implementations, in which the functions may be performed in a substantially simultaneous manner or in the reverse order depending on the functions involved, in accordance with the illustrated or discussed order. It will be understood by those skilled in the art to which the embodiments of the present application pertain.

The logic and/or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer readable medium, Used in conjunction with, or in conjunction with, an instruction execution system, apparatus, or device (eg, a computer-based system, a system including a processor, or other system that can fetch instructions and execute instructions from an instruction execution system, apparatus, or device) Or use with equipment. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with such an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM). In addition, the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.

It should be understood that portions of the application can be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware and in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: discrete with logic gates for implementing logic functions on data signals Logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), and the like.

One of ordinary skill in the art can understand that all or part of the steps carried by the method of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.

The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like. While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the present application is defined by the claims and their equivalents.

Claims

A mobile terminal having a structured optical module, wherein the structured optical module is disposed inside a casing of the mobile terminal, and the casing is provided with an opening portion corresponding to the position of the structural optical module, so that the structured light is The module receives and/or emits structured light through the opening;

The opening is covered with a light transmissive medium coated with a surface.
The mobile terminal with a structured light module according to claim 1, wherein the opening portion is at least two;

One of the at least two openings corresponds to the structured light emitter of the structured light module, such that the structured light emitter emits structured light through the one opening;

The other of the at least two openings corresponds to the structured light receiver of the structured light module such that the structured light receiver receives the structured light through the other opening.
The mobile terminal with a structured optical module according to claim 2, wherein the mobile terminal further comprises a driving circuit;

The driving circuit is configured to adjust a driving current of the structured light emitter according to a transmittance of the transparent medium to the structured light.
The mobile terminal with a structured optical module according to claim 3, wherein the driving circuit comprises a processing unit and a driving unit;

The processing unit is electrically connected to the structured light receiver and the driving unit, and configured to determine the structured light when the driving unit is configured to drive the structured light emitter to emit structured light with a first current Receiving, according to the second current generated by the received structured light, a transmittance of the transparent medium to the structured light according to the first current and the second current; calculating the transmittance and the expected value Percentage difference between

The driving unit is configured to increase a driving current of the structured light emitter to a third current, so that a percentage difference between the first current and the third current is different from the transmittance and the expected value The percentage difference between the matches.
A mobile terminal having a structured light module according to any one of claims 1 to 4, wherein the coating is an IR ink.
The mobile terminal with a structured light module according to any one of claims 1 to 5, wherein the outer casing comprises:

a glass cover, the structured light module comprises a structured light emitter and a structured light receiver, the structured light emitter is an infrared light emitter, and the structured light receiver is an infrared light receiver, the infrared light emitter And the infrared light receiver is disposed on an inner side of the glass cover, the infrared light emitter is spaced apart from the infrared light receiver, and an inner side of the glass cover is provided with an infrared light absorbing layer. A portion of the infrared light absorbing layer facing the infrared light emitter and the infrared light receiver is hollowed out.
The mobile terminal with a structured optical module according to claim 6, further comprising:

An ink layer disposed on an inner side surface of the infrared light absorbing layer, wherein a portion of the ink layer opposite to the infrared light emitter and the infrared light receiver is hollowed out.
The mobile terminal with a structured light module according to claim 6 or 7, wherein the plurality of infrared light emitters are plural, and a plurality of the infrared light emitters are spaced apart.
The mobile terminal with structured light module according to claim 8, wherein the infrared light emitter comprises: a first infrared light emitter and a second infrared light emitter.
The mobile terminal with structured light module according to claim 9, wherein the first infrared light emitter is a floodlight.
The mobile terminal with structured light module according to claim 10, wherein the second infrared light emitter is a laser emitter, and the laser emitter is spaced apart from the floodlight.
The mobile terminal with a structured light module according to any one of claims 6-11, wherein the infrared light receiver is an infrared light receiving camera.
The mobile terminal with a structured optical module according to any one of claims 6 to 12, further comprising:

a camera, the camera is disposed inside the infrared light absorbing layer, and a portion of the infrared light receiving layer facing the camera is hollowed out.
The mobile terminal with a structured optical module according to claim 7, further comprising:

a camera, the camera is disposed inside the ink layer, and portions of the ink layer and the infrared light receiving layer that face the camera are hollowed out.
The mobile terminal with structured light module according to claim 13 or 14, wherein the camera is an RGB camera.
The mobile terminal with a structured light module according to claim 13 or 14, wherein the infrared light emitter comprises: a floodlight and a laser emitter, the infrared light receiver, the floodlight, The camera and the laser emitter are spaced apart from one another.
A mobile terminal having a structured light module according to claim 16, wherein one of said infrared light receiver and said laser emitter is disposed at a leftmost end, said infrared light receiver and said laser light emitting The other setting in the device is at the far right.
The mobile terminal with a structured light module according to any one of claims 6-17, wherein the glass cover is a front glass cover.
The mobile terminal with a structured light module according to any one of claims 6 to 18, wherein the infrared light absorbing layer absorbs infrared light in a wavelength range larger than the infrared light emitted by the infrared light emitter. The wavelength range.
The mobile terminal with a structured optical module according to any one of claims 6 to 19, wherein the mobile terminal is a mobile phone or a tablet computer.
A driving method for driving the mobile terminal according to any one of claims 1 to 20, the method comprising:

Determining the light transmittance of the light transmitting medium;

The driving current of the structured light emitter is adjusted according to the light transmittance.
The driving method according to claim 21, wherein the determining the light transmittance of the transparent medium comprises:

Determining, by the first current driving structured light emitter, structural light, a second current generated by the structured light receiver according to the received structured light;

And determining, according to the first current and the second current, a transmittance of the transparent medium to structured light.
The driving method according to claim 22, wherein the adjusting the driving current of the structured light emitter according to the light transmittance comprises:

Calculating a percentage difference between the transmittance and the expected value;

Increasing a driving current of the structured light emitter to a third current to match a percentage difference between the first current and the third current to a percentage difference between the transmittance and a desired value .
A computer device, comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the program, implementing any one of claims 21-23 The driving method described in the item.
A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement the driving method according to any one of claims 21-23.