CN111489638B - Electronic device - Google Patents
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- CN111489638B CN111489638B CN202010479632.6A CN202010479632A CN111489638B CN 111489638 B CN111489638 B CN 111489638B CN 202010479632 A CN202010479632 A CN 202010479632A CN 111489638 B CN111489638 B CN 111489638B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Abstract
The application discloses electronic equipment, wherein, electronic equipment includes: the device comprises a middle frame, a photosensitive device and a shielding piece; the middle frame is provided with a first through hole and a second through hole, the photosensitive device is arranged on the first side of the middle frame, a receiving part of the photosensitive device is communicated with the first through hole, and an emitting part of the photosensitive device is communicated with the second through hole; the shielding piece is arranged on the second side of the middle frame and located between the first through hole and the second through hole, and the first side and the second side are opposite to each other. The shielding piece shields the photosensitive signal emitted from the second through hole from directly entering the first through hole, and the problem of errors caused by crosstalk of the photosensitive device of the conventional electronic equipment can be effectively solved.
Description
Technical Field
The application belongs to the technical field of electronics, concretely relates to electronic equipment.
Background
With the development and popularization of electronic devices, to meet the needs of users, more and more electronic devices are disposed in the electronic devices, and the functions of the electronic devices are increasingly powerful. In general, in order to mount the photosensitive device under the screen, the photosensitive device is often disposed on a side of the middle frame facing away from the screen, and a gap is formed between the middle frame and the display screen. Due to the gap, the light emitted from the emitting portion of the photosensor may be directly refracted under the screen and enter the receiving portion of the photosensor, forming crosstalk, which affects the error of the photosensor.
Disclosure of Invention
The embodiment of the application aims to provide electronic equipment, and the problem of errors caused by crosstalk of a photosensitive device of the existing electronic equipment can be solved.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an electronic device, including:
the device comprises a middle frame, a photosensitive device and a shielding piece;
the middle frame is provided with a first through hole and a second through hole, the photosensitive device is arranged on the first side of the middle frame, a receiving part of the photosensitive device is communicated with the first through hole, and an emitting part of the photosensitive device is communicated with the second through hole; the shielding piece is arranged on the second side of the middle frame and located between the first through hole and the second through hole, and the first side and the second side are opposite to each other.
In the embodiment of the application, by setting: the device comprises a middle frame, a photosensitive device and a shielding piece; the middle frame is provided with a first through hole and a second through hole, the photosensitive device is arranged on the first side of the middle frame, a receiving part of the photosensitive device is communicated with the first through hole, and an emitting part of the photosensitive device is communicated with the second through hole; the shielding piece is arranged on the second side of the middle frame and located between the first through hole and the second through hole, and the first side and the second side are opposite to each other. The shielding piece between the first through hole and the second through hole avoids crosstalk between the emitting part and the receiving part of the photosensitive device, and the problem of errors caused by crosstalk of the photosensitive device of the conventional electronic equipment is well solved.
Drawings
FIG. 1 is a schematic front view of a photosensitive structure of an electronic device in the prior art;
FIG. 2 is a schematic diagram of a front view of a photosensitive structure of an electronic device according to an embodiment of the present application;
FIG. 3 is a schematic side cross-sectional view of a photo-sensing structure of an electronic device according to an embodiment of the present application;
fig. 4 is a schematic side cross-sectional view of a photosensitive structure of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
In the prior art, as shown in fig. 1, in order to prevent the photosensor from being affected by the electronic device during operation, a large hole c needs to be formed in the middle frame b, and the hole is spaced from the edge of the electronic device by a distance L1, and at least two through holes d for light entering and exiting of the photosensor are formed in the hole c. However, the problem of crosstalk still exists between at least two through holes d for light to enter and exit from the photosensitive device.
The electronic device provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
The electronic device provided in the embodiment of the present application, as shown in fig. 2 to 4, includes:
the device comprises a middle frame 1, a photosensitive device 2 and a shielding piece 3;
the middle frame 1 is provided with a first through hole 4 and a second through hole 5, the photosensitive device 2 is arranged on the first side of the middle frame 1, a receiving part 6 of the photosensitive device 2 is communicated with the first through hole 4, and an emitting part 7 of the photosensitive device 2 is communicated with the second through hole 5; the shielding piece 3 is arranged on the second side of the middle frame 1 and located between the first through hole 4 and the second through hole 5, and the first side and the second side are opposite to each other.
Specifically, a first via extends through the first and second sides, and a second via extends through the first and second sides.
The electronic equipment provided by the embodiment of the application is characterized in that: the device comprises a middle frame, a photosensitive device and a shielding piece; the middle frame is provided with a first through hole and a second through hole, and the photosensitive device is arranged on the first side of the middle frame. The photosensitive device may be an infrared photosensitive device, and may also be a device, and the present application is not particularly limited. The photosensor includes a receiving portion and a transmitting portion. The receiving part of the photosensitive device is communicated with the first through hole, and the transmitting part of the photosensitive device is communicated with the second through hole; the shielding piece is arranged on the second side of the middle frame and located between the first through hole and the second through hole, and the first side and the second side are opposite to each other. The shielding piece shields the space between the first through hole and the second through hole, so that the light rays emitted from the emitting part of the photosensitive device through the second through hole can be effectively reduced, and the light rays directly enter the receiving part of the photosensitive device through the first through hole, and the problem of light crosstalk is caused.
Further, as shown in fig. 2 to 4, the electronic device further includes: a first lens 8, wherein the first lens 8 is disposed in the first through hole 4, and the first lens 8 focuses the received photosensitive signal to the receiving portion 6; and/or a second lens 9, wherein the second lens 9 is arranged in the second through hole 5, and the second lens 9 enables the photosensitive signal emitted by the emitting part 7 to be emitted in the form of parallel light.
In some embodiments of the present application, the electronic device has only the first lens in the case where the emitting portion of the light-sensing device has a higher emission power. The first lens is arranged in the first through hole, no device is arranged in the second through hole, or the second through hole is provided with a flat mirror, and photosensitive signals are emitted through the second through hole and focused to the receiving part through the first lens.
In other embodiments of the present application, the electronic device has only the second lens in cases where the receiving portion of the light-sensing device has a more sensitive receiving capability. The second lens is arranged in the second through hole, no device is arranged in the first through hole, or the plano-optic mirror is arranged in the first through hole, the photosensitive signal is emitted out through the second through hole and the second lens, the photosensitive signal is emitted out through the second lens in a parallel light mode, signal loss in the emitting process is reduced, and finally the photosensitive signal is focused to the receiving part through the first through hole.
In other embodiments of the present application, an electronic device has a first lens and a second lens. The first lens is arranged in the first through hole, the second lens is arranged in the second through hole, the photosensitive signal is emitted through the second through hole and the second lens, the photosensitive signal is emitted in a parallel light mode through the second lens, signal loss in the emitting process is reduced, and finally the photosensitive signal is focused to the receiving portion through the first through hole and the first lens, and signal loss in the receiving process is reduced.
As shown in fig. 3 and 4, the electronic device further includes: a screen cover plate 10; the screen cover plate 10 is fixed on the second side of the middle frame 1, and the shielding piece 3 is located between the screen cover plate 10 and the middle frame 1.
Specifically, a first lens is arranged between the receiving part and the screen cover plate, and a second lens is arranged between the transmitting part and the screen cover plate; the receiving part and the transmitting part face the screen cover plate; the shielding piece is arranged on the surface, facing the screen cover plate, of the middle frame. The photosensitive signal emitted from the emitter of the photosensitive device is emitted through the second through hole, and may be refracted when encountering the screen cover. But photosensitive signal after the refraction can receive sheltering from of shielding piece to reduce photosensitive signal after the refraction and can enter into photosensitive device's receiver through first through-hole, thereby reduced and emitted out from photosensitive device transmitting part light can directly take place the refraction in thereby entering photosensitive device's receiving part below the screen, form the cluster light, influence photosensitive device's error problem.
As shown in fig. 2 to 4, the electronic device further includes: a connecting portion 11; the screen cover plate 10 is fixed on the second side of the middle frame 1 through the connecting part 11; and the connecting part 11 between the first through hole 4 and the second through hole 5 is arranged between the shielding piece 3 and the screen cover plate 10. In order to ensure that the photosensitive device does not receive interference of other devices of the electronic equipment, the minimum distance between the first through hole and the second through hole and the edge of the electronic equipment is L. Wherein L may be less than the prior art minimum spacing L1.
The connecting part can be foam cotton rubber. Specifically, as shown in fig. 2 to 4, a third through hole 12 and a fourth through hole 13 are arranged on the connecting portion 11, the third through hole 12 is communicated with the first through hole 4 to form a first optical channel, and the fourth through hole 13 is communicated with the second through hole 5 to form a second optical channel. It can also be understood that the third through hole 12 communicates with the receiving portion 6, and the photosensitive signal is received through the first optical channel; the fourth through hole 13 is communicated with the emitting part 7, and the photosensitive signal is emitted through the second optical channel.
Optionally, the connecting portion 11 between the first through hole 4 and the second through hole 5 may also be disposed between the shielding member 3 and the middle frame 1. This may improve the convenience in production.
Optionally, the thickness of the shielding piece is smaller than or equal to the distance between the middle frame and the screen cover plate.
One end setting of shielding piece is on the center, and the other end of shielding piece can form the micro gap with between the screen apron, and the connecting piece setting is in the micro gap, thereby prevents from getting into photosensitive device's receiving part because of the refraction of screen apron from photosensitive device transmitting part transmission photosensitive signal. As will be appreciated by those skilled in the art, the gap may be infinitely small. In the case of an infinitely small gap between the shield and the screen cover, the thickness of the shield is almost equal to the distance between the bezel and the screen cover. Therefore, seamless matching between the parts is guaranteed, the screen is prevented from being jacked up by the shielding piece, and the installation is not stable. In addition, the shielding piece is opaque, so that a barrier is added between the first through hole and the second through hole.
In the embodiment of the application, the shielding piece is a preset material layer and/or a boss structure arranged on the middle frame. The preset material layer may be a polyester resin PET layer, and those skilled in the art can understand that the preset material layer may also be other materials, such as plastic and other materials with extremely low light transmittance, which is not specifically limited in the present application. The structure of the boss can also be changed according to the requirements of the production process, for example, the shape of the boss can be round, cylindrical, rectangular, irregular and the like. The material of the mesa structure is typically a material with very low light transmittance.
In some embodiments of the present application, the first through hole has a through hole structure with a cross-sectional area that decreases from large to small, and a cross-sectional area of a first end of the first through hole is larger than a cross-sectional area of a second end of the first through hole, and the second end of the first through hole abuts against the receiving portion; and/or the second through hole is of a through hole structure with the cross sectional area from large to small, the cross sectional area of the first end of the second through hole is larger than that of the second end of the second through hole, and the second end of the second through hole is abutted to the emitting part.
That is, a funnel shape may be formed in the through hole, and a minimum opening of the funnel abuts on the emitting portion and the receiving portion of the photosensor. In the case that the first through hole and the second through hole are both funnel-shaped, the light-sensitive signal may be refracted on the hole wall of the first through hole or the second through hole during the transmitting and receiving processes, but the light-sensitive signal will be more collected due to the funnel-shaped through holes. Specifically, in the first through hole, the photosensitive signal will be collected at the receiving portion of the photosensitive device by refraction at the hole wall. In the second via, the light-sensitive signal will be emitted from the second via by refraction at the wall of the hole. Therefore, the sending and receiving rate of the photosensitive signals can be effectively improved.
Alternatively, in the case that the transmission power of the photosensitive device is larger, only the first through hole is funnel-shaped, and the photosensitive signal may be refracted on the hole wall of the first through hole during the receiving process, but the photosensitive signal will be more collected due to the funnel-shaped through hole. Specifically, in the first through hole, the photosensitive signal will be collected at the receiving portion of the photosensitive device by refraction at the hole wall. Therefore, the receiving rate of the photosensitive signals can be effectively improved.
Optionally, in a case where the receiving portion of the photosensitive device is sensitive, only the second through holes are funnel-shaped, and the photosensitive signal may be refracted on the hole walls of the second through holes during the transmitting process, but the photosensitive signal will be collected more due to the funnel-shaped through holes. In particular, in the second via, the light-sensitive signal will be emitted from the second via by refraction at the wall of the hole. Therefore, the sending and receiving rate of the photosensitive signals can be effectively improved.
In another embodiment of the present application, the electronic device further includes: a first light guide and a second light guide; the first light guide piece is arranged between the middle frame and the receiving part, and the second light guide piece is arranged between the middle frame and the transmitting part; the cross-sectional area of the first light guide piece close to the middle frame is larger than the cross-sectional area of the first light guide piece departing from the middle frame, and/or the cross-sectional area of the second light guide piece close to the middle frame is larger than the cross-sectional area of the second light guide piece departing from the middle frame.
Specifically, the first light guide part and the second light guide part are both of through hole structures with cross sectional areas from large to small; the first light guide piece can be arranged in the first through hole or between the first through hole and the receiving part and is communicated with the first through hole and the receiving part; the second light guide member may be disposed in the first through hole, or between the second through hole and the emission portion, to communicate the second through hole and the emission portion.
More specifically, the cross-sectional area of the first end of the first light guide member is larger than that of the second end of the first light guide member, the first end of the first light guide member is close to the middle frame, and the second end of the first light guide member is far away from the middle frame; wherein the second end of the first light guide member abuts against the receiving portion (the first end of the first light guide member may abut against the middle frame);
and/or the cross-sectional area of the first end of the second light guide member is larger than that of the second end of the second light guide member, the first end of the second light guide member is close to the middle frame, and the second end of the second light guide member is far away from the middle frame; wherein the second end of the second light guide member abuts on the emission portion (the first end of the second light guide member may abut on the middle frame). The specific principle is the same as above, and the detailed description is omitted here.
In other embodiments of the present application, the light guide plate has a structure with a first through hole and a second through hole having cross-sectional areas from large to small, and a structure with a first light guide member and a second light guide member having cross-sectional areas from large to small. The first light guide piece is attached to the first through hole, and the second light guide piece is attached to the second through hole. The first light guide part and the second light guide part can be made of rigid materials or any materials with extremely low light transmittance. Under the condition that the first light guide piece is attached to the first through hole and the second light guide piece is attached to the second through hole, the first through hole and the second through hole support the first light guide piece and the second light guide piece, and the first light guide piece and the second light guide piece are prevented from being damaged due to shaking in the process that the electronic equipment is used by a user.
In the embodiment of the application, an accommodating space is formed in the end part where the second side of the middle frame is located; wherein, the photosensitive device is arranged in the accommodating space. This may provide a certain protection capability for the photosensitive device. In the process that the electronic equipment is used by a user, the photosensitive device cannot be damaged due to shaking.
Specifically, the first lens is a fresnel lens, and/or the second lens is a fresnel lens. The Fresnel lens can complete light focusing or emit parallel light, and meanwhile, the structure of the Fresnel lens is thinner than that of a common convex lens, so that the overall weight of the electronic equipment is reduced.
Optionally, the first lens is a plano-convex lens, and/or the second lens is a plano-convex lens.
To the above technical problem, an embodiment of the present application provides an electronic device, and relates to a design method of a screen photosensitive anti-crosstalk structure in an extreme spatial environment: two light-passing holes (namely the first through hole and the second through hole) with smaller sizes are formed in the middle frame and penetrate through the FOV (field of view) of the photosensitive device; through fresnel lens (screw thread lens) integration light emission receiving angle, set up the shielding piece between two clear apertures, thereby prevent to directly take place the refraction from the light that photosensitive device emission portion sent out in the screen below and get into photosensitive device's receiving portion, form the cluster light, influence photosensitive device's error.
The scheme provided by the embodiments of the present application is illustrated below.
When the photosensitive device works normally, the transmitting end (namely the transmitting part) sends out an infrared photosensitive signal, the receiving end (namely the receiving part) receives the infrared photosensitive signal to judge the distance, and light cannot cross between the transmitting end and the receiving end.
Two holes (aperture ensures that the FOV of the photosensitive device is not shielded, specifically, the first through hole 4, the second through hole 5, the third through hole 12 and the fourth through hole 13 are arranged, namely, the first through hole 4, the second through hole 5, the third through hole 12 and the fourth through hole 13 are arranged), the foam cotton glue is not provided with a large hole, and a shielding piece is arranged to prevent light crosstalk.
In addition, in order to ensure the normal operation of the photosensitive device, the scheme also provides that Fresnel lenses (threaded lenses, namely the first lens 8 and the second lens 9) are respectively added at two photosensitive holes (namely the first through hole 4 and the second through hole 5); an infrared photosensitive signal emitted by an emitting end (FOV is smaller than that of a receiving end) is emitted out from the other side (screen side) through a Fresnel lens to be emitted out in a parallel light mode (vertical to a screen cover plate), and the infrared photosensitive signal received by the receiving end is emitted out from the other side (photosensitive side) through the Fresnel lens to be focused on the receiving end; further avoiding light crosstalk between the transmitting end and the receiving end caused by light reflection.
The electronic Device provided by the embodiment of the application can be a Mobile phone, a tablet Computer, a notebook Computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, a Wearable Device, a vehicle-mounted Device or a Personal Digital Assistant (PDA), and the like. It should be noted that the specific type of the electronic device is not limited in the embodiments of the present application.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. An electronic device, comprising:
the device comprises a middle frame, a photosensitive device and a shielding piece;
the middle frame is provided with a first through hole and a second through hole, the photosensitive device is arranged on the first side of the middle frame, a receiving part of the photosensitive device is communicated with the first through hole, and an emitting part of the photosensitive device is communicated with the second through hole; the shielding piece is arranged on the second side of the middle frame and positioned between the first through hole and the second through hole, and the first side and the second side are opposite to each other;
the shielding piece is a preset material layer and/or a boss structure arranged on the middle frame;
the second end of the first through hole abuts against the receiving part, and the second end of the second through hole abuts against the transmitting part;
the first through hole is a through hole structure with a cross sectional area from large to small, the cross sectional area of the first end of the first through hole is larger than the cross sectional area of the second end of the first through hole, and/or the second through hole is a through hole structure with a cross sectional area from large to small, and the cross sectional area of the first end of the second through hole is larger than the cross sectional area of the second end of the second through hole.
2. The electronic device of claim 1, further comprising:
the first lens is arranged in the first through hole, and enables the received photosensitive signal to be focused on the receiving part;
and/or the second lens is arranged in the second through hole, and the second lens enables the photosensitive signal emitted by the emitting part to be emitted in the form of parallel light.
3. The electronic device of claim 1, further comprising: a screen cover plate;
the screen cover plate is fixed to the second side of the middle frame, and the shielding piece is located between the screen cover plate and the middle frame.
4. The electronic device of claim 3, further comprising: a connecting portion;
the screen cover plate is fixed on the second side of the middle frame through the connecting part; the connecting part between the first through hole and the second through hole is connected with the middle frame through the shielding piece;
a third through hole and a fourth through hole are arranged on the connecting part, and the third through hole is communicated with the first through hole and forms a first optical channel; the fourth through hole is communicated with the second through hole and forms a second optical channel.
5. The electronic device of claim 4, wherein the thickness of the shutter is less than or equal to the distance between the middle frame and the screen cover.
6. The electronic device of claim 1, further comprising: a first light guide and a second light guide;
the first light guide piece is arranged between the middle frame and the receiving part, and the second light guide piece is arranged between the middle frame and the transmitting part; the cross-sectional area of the first light guide piece close to the middle frame is larger than the cross-sectional area of the first light guide piece departing from the middle frame, and/or the cross-sectional area of the second light guide piece close to the middle frame is larger than the cross-sectional area of the second light guide piece departing from the middle frame.
7. The electronic device of claim 1, wherein an accommodating space is formed at an end portion where the second side of the middle frame is located;
wherein, the photosensitive device is arranged in the accommodating space.
8. The electronic device of claim 2, wherein the first lens is a fresnel lens, and/or wherein the second lens is a fresnel lens.
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| CN202010479632.6A CN111489638B (en) | 2020-05-29 | 2020-05-29 | Electronic device |
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