CN110958335A

CN110958335A - Terminal device

Info

Publication number: CN110958335A
Application number: CN201911061538.2A
Authority: CN
Inventors: 马卫东; 向飞; 霍国亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-04-03

Abstract

An embodiment of the present application provides a terminal device, including: the light guide device comprises a shell, a circuit board, detection equipment and a light guide medium, wherein a light transmission area for external light to enter the shell is arranged on the shell; the circuit board is arranged in the shell or the shell is formed into a whole; the detection device and the light guide medium are arranged in the shell; the first end of the light guide medium faces the light transmission area; the second end is arranged towards the detection equipment; the detection equipment is arranged on the circuit board and is located at a preset position away from the light-transmitting area by a preset distance, and the light guide medium is located in a gap between the shell and the circuit board and can be flexibly arranged. The light guide medium does not occupy the space of other equipment in the shell, the space for installing the light guide medium does not need to be reserved in the shell, the layout can be flexibly arranged, the inner space of the shell can be set more compactly, and the utilization rate of the inner space of the shell is further improved.

Description

Terminal device

Technical Field

The application relates to the field of terminal equipment, in particular to terminal equipment.

Background

With the gradual application of terminal devices such as mobile phones and tablet computers, detection devices for detecting light rays are often arranged on the terminal devices, and the detection devices determine the distance between the terminal devices and external objects by detecting the light rays reflected by the external objects.

Fig. 1 is a schematic structural diagram of a terminal device in the related art, and please refer to fig. 1. The detection device 30 is generally an optical sensor, the housing 10 of the terminal device is provided with an installation channel 101, the detection device 30 is arranged at the bottom of the installation channel 101, the installation channel 101 is further provided with a light-transmitting column 20, the light-transmitting column 20 is located outside the detection device 30, light reflected by an external object passes through the light-transmitting column 20 and then irradiates the detection device 30, and the detection device 30 obtains the light and then detects the distance between the terminal device and the external object.

However, in order for the detection device 30 to receive light, the light-transmitting column 20 and the detection device 30 are both disposed in the installation channel 101, and a space for installing the light-transmitting column 20 and the detection device 30 needs to be reserved in the housing 10, resulting in low space utilization in the housing 10.

Disclosure of Invention

In view of this, the embodiment of the present application provides a terminal device, so as to solve the technical problem in the prior art that in order to enable a detection device to receive light, a light-transmitting column and the detection device are both arranged in an installation channel, and a space for installing the light-transmitting column and the detection device needs to be reserved in a housing, so that the utilization rate of the space in the housing is low.

An embodiment of the present application provides a terminal device, including: the light-transmitting device comprises a shell, a light-transmitting area and a light-transmitting area, wherein the shell is provided with a light-transmitting area for external light to enter the shell; the circuit board is arranged in the shell or is integrated with the shell; the detection device and the light guide medium are arranged in the shell; the first end of the light guide medium is arranged towards the light transmission area so as to receive external light from the light transmission area; the second end of the light guide medium is arranged towards the detection device, and external light is transmitted to the second end after being reflected for multiple times in the light guide medium; the detection equipment is arranged on the circuit board and is positioned at a preset position away from the light-transmitting area by a preset distance, and the light guide medium is positioned in a gap between the shell and the circuit board. The shell is provided with a light-transmitting area, the circuit board is provided with at least one electronic element, the detection equipment and the light guide medium are arranged in the shell, a first end of the light guide medium faces the light-transmitting area, and a second end of the light guide medium faces the detection equipment; the detection device is arranged on the circuit board and is positioned at a preset position which is away from the light-transmitting area by a preset distance, and the light guide medium is arranged in a gap between the shell and the circuit board; the light guide medium does not occupy the space of other equipment in the shell, the space for installing the light guide medium is not required to be reserved in the shell, the inner space of the shell can be set more compactly, and the utilization rate of the inner space of the shell is further improved.

The terminal device as described above, wherein the light guide medium includes a transparent core and a protective layer, and the protective layer is wrapped outside the transparent core. External light from external object enters into transparent heart yearn by first end after the printing opacity district in, later external light propagates to the second end in transparent heart yearn to at the in-process of propagation, light is at the lateral wall multiple reflection of transparent heart yearn, in order to restrict light in transparent heart yearn, and external light is by the second end back of penetrating, shines on check out test set, in order to realize the detection to external object position.

The terminal device as described above, wherein the plurality of transparent core wires are arranged in parallel to form the light guide bundle, and the protective layer is wrapped outside the light guide bundle. A plurality of transparent heart yearns can be simultaneously with the external light conduction from external object to check out test set, have improved the received illumination intensity of check out test set, and then improve and detect the precision.

The terminal device as described above, wherein the number of the transparent core wires is plural, the plural transparent core wires are arranged in parallel, and each transparent core wire is wrapped with the protective layer. To achieve protection of each transparent core.

The terminal device as described above, wherein the light guide medium further includes a reflective layer located between the protective layer and the transparent core, the reflective layer is wrapped on the transparent core, and the light guided in the light guide medium is reflected on the reflective layer. The reflecting layer can prevent light from emitting, and further avoid loss of external light in the transmission process.

The terminal device as described above, wherein the reflective layer is a transparent layer having a refractive index smaller than that of the transparent core. The light can be fully emitted at the junction position of the reflecting layer and the transparent core wire, so that the light is prevented from entering the reflecting layer, and the loss of the light in the transmission process in the light guide medium is reduced.

The terminal device as described above, wherein the reflective layer is a metal layer. Light exiting the transparent core may be reflected at the metal layer to re-enter the transparent core.

The terminal device as described above, wherein the light guiding medium is a flexible light guiding medium. The light guide medium can be deformed in the installation process, so that the gap between the shell and the circuit board is extended, the specific extension path can be freely selected according to the position relation between the circuit board and the shell and the position relation between electronic elements on the circuit board during installation, the arrangement is flexible, the installation of the light guide medium is facilitated, the light guide medium occupies the vacant space in the shell, and the utilization rate of the space in the shell is improved.

The terminal device as described above, wherein the detection device includes a light source and a light detection means, both of which are disposed toward the second end; the light source emits light to the outside of the shell through the light guide medium and the light transmission area, the light is reflected on an external object to form external light, and the external light is emitted to the light detection device through the light guide medium. Light that the light source sent jets into the light guide medium through the second end of light guide medium, the light that enters into the light guide medium is at the light guide medium and to first end conduction, light in the light guide medium jets out by first end after the multiple reflection on the lateral wall of light guide medium, the light that jets out by first end jets out outside the casing through the light-permeable zone, light shines on the external object outside the casing, and reflect on external object, in order to form external light, later external light jets into in the first end through the light-permeable zone, external light enters into in the light guide medium, and to second end conduction in the light guide medium, external light in the conduction jets out by the second end after the multiple reflection on the lateral wall of light guide medium, external light detection device jetted out by the second end, in order to realize the detection to external object position.

As described above, the light guide medium includes the first light guide medium and the second light guide medium, the first ends of the first light guide medium and the second light guide medium are both disposed toward the light-transmitting area, the second end of the first light guide medium is disposed toward the light source, and the second end of the second light guide medium is disposed toward the light detection device. The light source emits light through the first light guide medium and the light transmission area, the emitted light is reflected on an external object to form external light, the external light enters the second light guide medium after passing through the light transmission area, and then the external light is emitted to the light detection device through the second end of the second light guide medium to realize the detection of the position of the external object.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a terminal device in the related art;

fig. 2 is an overall schematic diagram of a terminal device according to an embodiment of the present application;

fig. 3 is a first schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a terminal device provided in the embodiment of the present application;

fig. 6 is a schematic structural diagram of a terminal device provided in an embodiment of the present application, where a light guide medium includes a transparent core;

fig. 7 is a first schematic structural diagram illustrating a light guide medium in a terminal device according to an embodiment of the present application, where the light guide medium includes a plurality of transparent cores;

fig. 8 is a schematic structural diagram of a second structure in which a light guide medium in a terminal device provided in an embodiment of the present application includes a plurality of transparent core wires;

fig. 9 is a schematic structural diagram three of a light guide medium in a terminal device provided in an embodiment of the present application, where the light guide medium includes a plurality of transparent core wires;

fig. 10 is a schematic structural diagram of a fourth example that a light guide medium in a terminal device provided in an embodiment of the present application includes a plurality of transparent core wires;

fig. 11 is a schematic structural diagram of a detection apparatus in a terminal device provided in an embodiment of the present application, where the detection apparatus includes a light source and a light detection device;

fig. 12 is an extended schematic view of a first light guide medium and a second light guide medium in a terminal device provided in an embodiment of the present application.

Description of reference numerals:

10: a housing;

20: a light-transmitting pillar;

30: a detection device;

40: a light-guiding medium;

50: a circuit board;

101: installing a channel;

102: a rear cover;

103: a middle frame;

104: a display device;

105: a partition plate;

106: a transparent region;

301: a light source;

302: a light detection device;

401: a first light-guiding medium;

402: a second light-guiding medium;

403: a transparent core;

404: a protective layer;

405: and a reflective layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 embodiments of the present application, but not all embodiments. 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 embodiment of the present application provides a terminal device, including but not limited to a mobile or fixed terminal having a frame or a housing, such as a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, an intercom, a netbook, a POS machine, a Personal Digital Assistant (PDA), a car recorder, a wearable device, a virtual reality device, a wireless usb disk, a bluetooth speaker/earphone, or a vehicle-mounted front-end device.

Referring to fig. 2 and fig. 3, in the embodiment of the present application, a mobile phone is taken as an example of the terminal device for description, and the terminal device includes a housing 10, a circuit board 50, a display device 104, a battery, and other devices; specifically, the housing 10 includes a middle frame 103 and a rear cover 102, the middle frame 103 is a closed frame, the rear cover 102 is disposed at the bottom end of the middle frame 103, so that the middle frame 103 and the rear cover 102 enclose a mounting cavity, a partition plate 105 is disposed in the mounting cavity, and the partition plate 105 partitions the mounting cavity into an upper cavity facing away from the rear cover 102 and a lower cavity located between the rear cover 102 and the upper cavity; the circuit board 50 and the battery may be disposed in the lower cavity, the display device 104 may be disposed in the upper cavity, and the display device 104 may close the upper cavity, such that the display device 104, the middle frame 103, and the rear cover 102 together enclose a closed cavity. The partition plate 105 may be connected to the middle frame 103 by means of clamping or bolting, and of course, the partition plate 105 may also be integrally formed with the middle frame by means of injection molding or casting.

The Circuit Board 50 may be a Printed Circuit Board (PCB) 50, and a Circuit with a certain pattern may be formed on the Circuit Board 50 by electroplating or evaporation; at least one electronic component is arranged on the circuit board 50, and the electronic component is electrically connected with the circuit on the circuit board 50; the electronic components may include a chip and a circuit module, both of which are electrically connected to the circuit on the circuit board 50; the chip can execute storage and/or control functions, and the circuit module can be composed of devices such as a capacitor, an inductor and a resistor. The circuit board 50 may be connected to the partition plate 105, for example, the circuit board 50 may be connected to the partition plate 105 by a bolt connection or a snap connection, so as to fix the circuit board 50 on the partition plate 105; of course, in the embodiment of the present application, the circuit board 50 may also be connected to the rear cover 102 to fix the circuit board 50 on the rear cover 102, and the circuit board 50 may be connected to the rear cover 102 by a bolt connection or a clamping connection; in the embodiment of the present application, the circuit board 50 may be integrated with the housing 10, for example, the circuit board 50 may be integrated with the partition plate 105, and of course, the circuit board 50 may also be integrated with the rear cover 102, wherein when the circuit board 50 is integrated with the rear cover 102, the heat dissipation performance of the circuit board 50 may be improved to prevent the circuit board 50 from overheating.

The display device 104 is electrically connected with the circuit on the circuit board 50 to display image information under the control of the chip; the Display device 104 may be an Organic Light-Emitting Diode (OLED) Display or a Liquid Crystal Display (LCD), for example. It should be understood that, in order to improve the human-computer interaction performance, the display device 104 may have a touch function, and accordingly, a touch module is disposed on the display device 104, and the touch module may be a capacitive touch module, but of course, the touch module may also be a resistive touch module; the user can input an operation command by touching the display device 104. The display device 104 may further include a fingerprint module, so that when a user's finger contacts the display device 104, the fingerprint module detects fingerprint information of the user's finger.

In order to detect the position of the external object by the terminal device, a detection device 30 is usually disposed in the housing 10, and the detection device 30 detects the position of the external object by detecting external light from the external object; for example, in the process of a call of a mobile phone, the display device 104 is close to the face of the user, and the display is often turned off in order to save electric energy and avoid misoperation caused by the fact that the face of the user touches the display device 104; the specific process is as follows: the detection device 30 obtains external light from the face of the user, transmits a detection signal to the chip on the circuit board 50, and further detects the distance between the face of the user and the mobile phone, and when the distance is small, the chip controls the display device 104 to stop working. It is understood that the external light may be visible light, or invisible light such as infrared light, ultraviolet light, etc.; the external light may be light reflected by an external object, such as visible light reflected by the external object, or light emitted by the external object, such as infrared light radiated by the skin of the user.

In the embodiment of the present application, the detecting device 30 may be various, as long as it can detect external light; for example, the detecting device 30 may include, but is not limited to, a photo resistor, a photo sensor, an infrared receiving module, and the like.

With continued reference to fig. 2 and 3, in order to let the external light enter the casing 10 to be received by the detection device 30, a light-transmitting area is required to be arranged on the casing 10, the light-transmitting area may include a light-transmitting hole arranged on the middle frame 103 or the partition plate 105, a transparent area 106 opposite to the light-transmitting hole is arranged on the display device 104, and the external light passes through the transparent area 106 and then irradiates the detection device 30 through the light-transmitting hole.

In the embodiment of the present application, a mobile phone is taken as an example to explain, a scene of a light guide medium for conducting external light in a mobile phone shell is set as a scene one, a scene of the light guide medium including a transparent core line and a protective layer in the mobile phone is set as a scene two, and a scene of a mobile phone detection device including a light source and a light sensor is set as a scene three.

Next, the structure of the mobile phone is described with respect to a scene one, a scene two, and a scene three, respectively.

Scene one

With continued reference to fig. 2 and 3, the mobile phone housing 10 is provided with a light-transmitting area for external light to enter, it is understood that the light-transmitting area may be a light-transmitting hole formed on the middle frame 103 or the partition plate 105, and the corresponding display device 104 is provided with a transparent area 106 facing the light-transmitting hole, and external light can be emitted into the light-transmitting hole through the transparent area 106.

With continued reference to fig. 3, the light guide medium 40 is disposed in the housing 10, an end of the light guide medium 40 facing the light transmissive region is a first end, and an end of the light guide medium 40 facing the detection device 30 is a second end; the first end may be disposed within the light-transmissive aperture to receive light from the transparent region 106; the detection device 30 is arranged on the circuit board 50 and is electrically connected with the circuit on the circuit board 50; a second end of the light guide medium 40 may be disposed in the lower cavity to be disposed toward the detection device 30 on the circuit board 50, thereby guiding light to the detection device 30; it is understood that a portion of the light guide medium 40 is located in the light-transmitting hole, and the remaining portion of the light guide medium 40 is located in the lower cavity. In operation, external light enters the first end after passing through the transparent region 106 on the display device 104, and then propagates within the light guide medium 40 towards the second end; in the process of external light propagation in the light guide medium 40, the external light is reflected on the side wall of the light guide medium 40 for multiple times, so that the external light is limited in the light guide medium 40; the external light is emitted from the second end and then irradiated on the detection device 30, so as to be detected by the detection device 30.

In this embodiment, in order to enable external light to propagate in the light guide medium 40, the light guide medium 40 may be mainly made of transparent materials such as glass, quartz, transparent organic polymers, etc. to avoid loss in the process of propagating light in the light guide medium 40; it is understood that in order for the light to be reflected at the surface of the light guide medium 40 multiple times, the surface of the light guide medium 40 needs to be as smooth as possible.

It will be appreciated that the refractive index of the light guiding medium 40 is not the same as the refractive index of air, so that light is reflected at the sidewalls of the light guiding medium 40. Further, the refractive index of the light guide medium 40 may be greater than that of air, and if the incident angle is greater than the critical angle when the external light reaches the sidewall of the light guide medium 40, the external light may be totally reflected, so as to reduce the loss of the external light during the propagation process.

With continued reference to fig. 3, in the embodiment of the present application, the detecting device 30 is disposed at a preset position on the circuit board 50 and at a preset distance from the light-transmitting area, wherein the preset position may be set according to the arrangement of the electronic components on the circuit board 50; illustratively, at least one electronic component is disposed on the circuit board 50, and the electronic components are disposed at intervals, and the corresponding preset position may be a vacant position between two adjacent electronic components, wherein the preset distance is a distance from the vacant position to the light-transmitting region. The light guide medium 40 is disposed between the housing 10 and the circuit board 50, the circuit board 50 includes a board body and an electronic component disposed on the board body, for example, the light guide medium 40 may be located in a gap between the board body and the housing 10, or the light guide medium 40 may be located in a gap between the housing 10 and the electronic component, so as to guide external light to the detection device 30 located at a preset position; the detection device 30 is arranged at a preset position, and the position of the detection device 30 can be reasonably set according to the vacant position on the circuit board 50, so that the detection device 30 can only occupy the vacant space of the shell 10, the space for installing the detection device 30 is not required to be reserved in the shell 10, and the space utilization rate in the shell 10 is improved; illustratively, the space below the light hole can be used for installing a camera or a flash lamp and the like. Light guide medium 40 sets up in the clearance for light guide medium 40 does not occupy the space of other equipment in casing 10, need not to reserve the space that is used for installing light guide medium 40 in casing 10, can be with the compacter that casing 10 inner space set up, and then improve the utilization ratio of casing 10 inner space.

With continued reference to fig. 3, in one realizable approach, the circuit board 50 may be disposed on the back cover 102 with a gap between the circuit board 50 and the divider plate 105, and also with a gap between electronic components on the circuit board 50 and the divider plate 105; at this time, the light guide medium 40 may be disposed in the gap between the circuit board 50 and the partition plate 105, and/or the light guide medium 40 may be disposed in the gap between the electronic component and the partition plate 105, and the light guide medium 40 may also be disposed in the gap between two adjacent electronic components

With continued reference to fig. 5, in one realizable approach, the circuit board 50 may be disposed on the divider plate 105 with a gap between the circuit board 50 and the back cover 102, and also with a gap between the electronic components and the back cover 102; at this time, the light guide medium 40 may be disposed in the gap between the circuit board 50 and the rear cover 102, and/or the light guide medium 40 may be disposed in the gap between the electronic component and the rear cover 102, although the light guide medium 40 may also be disposed in the gap between two adjacent electronic components.

In the above implementation, the light guide medium 40 extends in the housing 10, and the exemplary light guide medium 40 may extend linearly, but the light guide medium 40 may also extend in a curved shape, the curved light guide medium 40 may have an arc shape or an S-shape, and the light guide medium 40 may also have other irregular shapes. It should be noted that when the light guide medium 40 is curved, a round corner needs to be disposed at the corner to prevent external light from being emitted out of the light guide medium 40 at the corner during the propagation process of the external light in the light guide medium 40. It is understood that, in order to facilitate the installation and arrangement of the light guide medium 40, the light guide medium 40 may also be disposed in the gap between other devices in the housing 10 without affecting the operation of other devices, so as to further improve the utilization rate of the internal space of the housing 10.

With continued reference to fig. 2 and fig. 3, in the embodiment of the present application, the first end of the light guide medium 40 may be attached to the display device 104 of the transparent area 106, and the second end of the light guide medium 40 is attached to the detection device 30, further, the first end of the light guide medium may be attached to the display device 104 of the transparent area 106 through an optical adhesive, and the second end of the light guide medium may also be attached to the detection device 30 through an optical adhesive. With continued reference to fig. 4, the first end of the light guide medium 40 may also be spaced apart from the display device 104 of the transparent region 106, and the second end of the light guide medium 40 may be spaced apart from the detection apparatus 30; it should be noted that the distance between the first end and the transparent region 106 and the distance between the second end and the detection device 30 are reasonably set to ensure that external light from an external object can enter the light guide medium 40 through the first end after passing through the transparent region 106, and the external light in the light guide medium 40 is emitted to the detection device 30 through the second end to achieve detection.

Scene two

With continued reference to fig. 3 and 6, in the embodiment of the present application, the detecting device 30 located at the preset position receives external light from the light-transmitting area through the light-guiding medium 40 to detect the position of the external object. The light guide medium 40 may include a transparent core wire 403 and a protective layer 404, the transparent core wire 403 being disposed in a gap between the housing 10 and the circuit board 50; in use, external light from an external object enters the transparent core 403 from the first end after passing through the light-transmitting region, then the external light propagates in the transparent core 403 towards the second end, and during the propagation, the light is reflected multiple times at the sidewall of the transparent core 403 to be confined in the transparent core 403, and after being emitted from the second end, the external light irradiates the detection device 30 to realize the detection of the position of the external object. It can be understood that the external light from the external object may be visible light reflected by the external object, or may also be infrared light or ultraviolet light reflected by the external object, and of course, the external light may also be visible light emitted by the external object, or non-visible light such as infrared light, ultraviolet light, and the like.

Transparent core 403 may be made of glass, quartz, or a transparent organic polymer to ensure that external light can propagate inside transparent core 403, and in order to avoid external light inside transparent core 403 from being emitted from the side wall of transparent core 403 when contacting the side wall of transparent core 403, it is desirable to make the side wall of transparent core 403 as smooth as possible.

With reference to fig. 6, in the embodiment of the application, the protective layer 404 is wrapped on the outer portion of the transparent core wire 403, and the protective layer 404 can protect the transparent core wire 403, so that the transparent core wire 403 is prevented from being damaged due to scratch between the transparent core wire 403 and other objects in the using process, and the conduction effect of the transparent core wire 403 on external light rays is further influenced. The protective layer 404 may be composed primarily of rubber or plastic. In addition, the protective layer 404 is connected to the housing 10 or the circuit board 50, so that the light guide medium 40 can be fixed to prevent the transparent core 403 from directly contacting the housing 10 or the circuit board 50; it is understood that the protective layer 404 may be connected to the housing 10 or the circuit board 50 by an adhesive, or a card slot is disposed on the housing 10 or the circuit board 50, and the protective layer 404 is clamped in the card slot, so as to fix the light guide medium 40.

With continued reference to FIG. 6, in one achievable approach, only one transparent core 403 is disposed between the optically transparent region and the detection device 30, with the transparent core 403 being externally wrapped with a protective layer 404 to protect the transparent core 403. Further, a reflective layer 405 is further disposed between the transparent core 403 and the protective layer 404, the tubular reflective layer 405 wraps the transparent core 403, light inside the transparent core 403 is reflected on the reflective layer 405, the reflective layer 405 can prevent the light from being emitted from the side wall of the transparent core 403, and further loss of external light in the process of transmission in the transparent core 403 is avoided.

Reflective layer 405 may be made of a transparent material having a refractive index different from the refractive index of transparent core 403, and since the refractive index is different from the refractive index of transparent core 403, light may be reflected at the interface between transparent core 403 and reflective layer 405; in addition, the light entering the reflective layer 405 is reflected again at the outer surface of the reflective layer 405 to reflect the light toward the transparent core 403. Illustratively, the refractive index of reflective layer 405 may be greater than the refractive index of transparent core 403.

In the embodiment of the present application, the refractive index of the reflective layer 405 is smaller than the refractive index of the transparent core 403, so that the light can be fully emitted at the boundary position between the reflective layer 405 and the transparent core 403, thereby preventing the light from entering the reflective layer 405, and reducing the loss of the light in the propagation process in the light guide medium 40.

Of course, the reflective layer 405 may also be a metal layer, the metal layer wraps the transparent core 403, and the light emitted from the inside of the transparent core 403 may be reflected on the metal layer, so that the light enters the transparent core 403 again; in order to reduce the loss of light, the metal layer in the form of a tube can be arranged as smooth as possible. It is understood that the metal layer may be composed mainly of a metal such as silver, aluminum, or the like.

With continued reference to fig. 7, in an achievable manner, the number of transparent core wires 403 may be multiple, the multiple transparent core wires 403 are arranged in parallel to form a light guide bundle, and the multiple transparent core wires 403 may simultaneously guide external light from an external object to the detection device 30, so as to improve the illumination intensity received by the detection device 30, and further improve the detection accuracy.

With continued reference to fig. 7 and 8, in the embodiment of the present application, the protective layer 404 may be wrapped outside the light guide bundle, and the protective layer 404 may protect the transparent core wires 403 and fix the transparent core wires 403 together. Further, each transparent core wire 403 in the protective layer 404 is wrapped with a tubular reflective layer 405, light inside the transparent core wire 403 is reflected on the reflective layer 405, and the reflective layer 405 can prevent the light from being emitted from the side wall of the transparent core wire 403, thereby avoiding loss of external light in the process of conduction in the transparent core wire 403. Reflective layer 405 may be made of a transparent material having a refractive index different from the refractive index of transparent core 403, and since the refractive index is different from the refractive index of transparent core 403, light may be reflected at the interface between transparent core 403 and reflective layer 405; in addition, the light entering the reflective layer 405 is reflected again at the outer surface of the reflective layer 405 to reflect the light toward the transparent core 403. The refractive index of the reflective layer 405 is smaller than that of the transparent core 403, so that the light can be fully emitted at the interface between the reflective layer 405 and the transparent core 403, thereby preventing the light from entering the reflective layer 405, and reducing the loss of the light during the propagation process in the light guide medium 40. Of course, the reflective layer 405 may also be a metal layer, the metal layer wraps the transparent core 403, and the light emitted from the inside of the transparent core 403 may be reflected on the metal layer, so that the light enters the transparent core 403 again; in order to reduce the loss of light, the metal layer in the form of a tube can be arranged as smooth as possible.

With continued reference to fig. 9 and 10, of course, in the embodiment of the present application, a protective layer 404 may also be wrapped on each transparent core wire 403 of the light guide bundle to protect each transparent core wire 403, and a reflective layer 405 and the protective layer 404 are sequentially wrapped outside each transparent core wire 403. Furthermore, each transparent core wire 403 is wrapped with a tubular reflective layer 405, and the refractive index of the reflective layer 405 is smaller than that of the transparent core wire 403, so that light can be fully emitted at the boundary position between the reflective layer 405 and the transparent core wire 403, and further the light is prevented from entering the reflective layer 405, so as to reduce the loss of the light in the conduction process of the light guide medium 40. Of course, the reflective layer 405 may also be a metal layer, the metal layer wraps the transparent core 403, and the light emitted from the inside of the transparent core 403 may be reflected on the metal layer, so that the light enters the transparent core 403 again; in order to reduce the loss of light, the metal layer in the form of a tube can be arranged as smooth as possible. It is understood that, at this time, the plurality of transparent core wires 403 wrapped with the protective layer 404 may be bundled together to fix the plurality of transparent core wires 403; of course, each transparent core 403 may not contact other transparent cores 403, i.e., each transparent core 403 may extend in a different path in the gap between the housing 10 and the circuit board 50 and/or the gap between the housing 10 and the electronic component.

In the foregoing implementation manner, the transparent core wire 403 may have a certain flexibility, so that the light guide medium 40 is a flexible light guide medium, and further, the light guide medium 40 may be deformed in the installation process, so that the light guide medium 40 extends in the gap between the housing 10 and the circuit board 50, and a specific extending path may be freely selected according to the position relationship between the circuit board 50 and the housing 10 and the position relationship between electronic elements on the circuit board 50 during installation, which is flexible in arrangement, and facilitates installation of the light guide medium 40, the light guide medium 40 occupies the vacant space in the housing 10, and the utilization rate of the space in the housing 10 is improved.

In the embodiment of the present application, the light guide medium 40 may be an optical fiber in the prior art, the optical fiber has a small cross-sectional size and good flexibility, and on the premise of not affecting the normal operation of the terminal device, the optical fiber may extend in the gap between the devices in the housing 10, only occupying the empty space in the housing 10, and improving the utilization rate of the space in the housing 10; in addition, the flexibility of the optical fiber is good, so that the optical fiber can be freely arranged in the gap in the shell 10, and the installation of the light is convenient. Further, the number of the optical fibers may be multiple, and the multiple optical fibers are arranged in parallel and at intervals to increase the intensity of the illumination received by the detection device 30.

Scene three

With continued reference to fig. 11, the detecting apparatus 30 includes a light source 301 and a light detecting device 302, the light source 301 and the light detecting device 302 may be disposed on the circuit board 50, a first end of the light guiding medium 40 is disposed toward the light transmissive region, a second end of the light guiding medium 40 is disposed toward the light source 301 and the light detecting device 302, during use, light emitted from the light source 301 enters the light guiding medium 40 through the second end of the light guiding medium 40, the light entering the light guiding medium 40 is transmitted toward the first end in the light guiding medium 40, the light in the light guiding medium 40 is reflected on the sidewall of the light guiding medium 40 for multiple times and then exits from the first end, the light exiting from the first end exits to the outside of the housing 10 through the light transmissive region, the light irradiates on an external object outside the housing 10 and is reflected on the external object to form external light, then the external light enters into the first end through the light transmissive region, the external light enters into the light guiding medium 40, and is conducted to the second end in the light guide medium 40, external light rays in the conduction are emitted from the second end after being reflected on the side wall of the light guide medium 40 for multiple times, and the external light rays emitted from the second end are emitted to the light detection device 302, so that the position of an external object is detected.

Illustratively, the time interval from the light emitted from the light source 301 to the detection of the external light by the light detection device 302 may be detected, and half of the product of the time interval and the speed of light is the distance from the terminal device to the external object.

It is understood that the light source 301 may be a light emitting diode, an incandescent lamp, or the like, which can emit visible light, and accordingly, the light detecting device 302 may be a light sensor or a photoresistor, or the like; of course, the light source 301 may also be an infrared emitter, and correspondingly, the light detection device 302 may be an infrared receiving module to detect infrared light emitted from the infrared emitter.

With continued reference to fig. 12, in the embodiment of the present application, the light guide medium 40 may include a first light guide medium 401 and a second light guide medium 402, where first ends of the first light guide medium 401 and the second light guide medium 402 are both disposed toward the light-transmitting region, a second end of the first light guide medium 401 is disposed toward the light source 301, and a second end of the second light guide medium 402 is disposed toward the light detection device 302; when the light detection device is used, the light source 301 emits light through the first light guide medium 401 and the light transmission region, the emitted light is reflected on an external object to form external light, the external light enters the second light guide medium 402 after passing through the light transmission region, and then the external light is emitted to the light detection device 302 through the second end of the second light guide medium 402 to realize the detection of the position of the external object.

The structure of the first light guide medium 401 in this scenario is substantially the same as the structure of the light guide medium 40 in the above scenario, the first light guide medium 401 may include a first transparent core and a first protective layer wrapped outside the first core, one end of the first transparent core facing the light transmission region is a first end, one end of the first transparent core facing the light source 301 is a second end, the light emitted by the light source 301 is injected into the first transparent core by the second end of the first transparent core, the light is transmitted to the first end in the first transparent core, and is injected out of the housing 10 by the first end and the light transmission region.

In one implementation, only one first transparent core is disposed between the optically transmissive region and the light source 301, and the first transparent core is externally wrapped with a protective layer to protect the first transparent core. Further, still be provided with first reflection stratum between first transparent heart yearn and first protective layer, be pipy first reflection stratum parcel on first transparent heart yearn, the inside light of first transparent heart yearn takes place to reflect on first reflection stratum, and first reflection stratum can prevent that light from being jetted out by the lateral wall of first transparent heart yearn, and then avoids the in-process of outside light transmission in first transparent heart yearn to take place the loss.

The first reflecting layer can be made of a transparent material with a refractive index different from that of the first transparent core wire, and light can be reflected at the boundary position between the first transparent core wire and the first reflecting layer due to the fact that the refractive index is different from that of the transparent core wire; in addition, light entering the first reflective layer is reflected at the outer surface of the first reflective layer to reflect the light toward the first transparent core. In the embodiment of the present application, the refractive index of the first reflective layer is smaller than the refractive index of the first transparent core, so that the light is set to be totally reflected at the boundary position between the first reflective layer and the first transparent core, and further the light is prevented from entering the first reflective layer, so as to reduce the loss of the light in the transmission lead of the first light guide medium 401.

The first reflective layer may also be a metal layer, the metal layer is wrapped outside the first transparent core, and the light emitted from the inside of the first transparent core may be reflected on the first metal layer, so that the light enters the first transparent core again; in order to reduce the light loss, the inner wall of the tubular metal layer can be smooth as much as possible. It is understood that the metal layer may be composed mainly of a metal such as silver, aluminum, or the like.

In an implementation manner, the number of the first transparent core lines may be multiple, the plurality of first transparent core lines are arranged in parallel to form a bundle of light guiding beams, and the plurality of first transparent core lines can simultaneously transmit the light emitted from the light source 301 to the light-transmitting area, so as to improve the illumination intensity emitted from the light-transmitting area.

In this application embodiment, the first protective layer can wrap up outside all first transparent heart yearns, and the first protective layer can also be fixed a plurality of first transparent heart yearns together when protecting first transparent heart yearn. Further, all parcel has on each first transparent core line in the first protective layer to be pipy first reflection stratum, and the reflection takes place for the inside light of first transparent core line on first reflection stratum, and first reflection stratum can prevent that light from being jetted out by the lateral wall of first transparent core line, and then avoids the in-process of light transmission in first transparent core line to take place the loss.

Of course, in this embodiment of the application, a first protective layer may be further wrapped on each first transparent core wire to protect each first transparent core wire, and a first reflective layer and a first protective layer are sequentially wrapped outside each first transparent core wire.

In the foregoing implementation manner, the first transparent core wire may have a certain flexibility, so that the first light guide medium 401 has a certain flexibility, and further, the first light guide medium 401 may be deformed in the installation process, so that the first light guide medium 401 extends in the gap between the housing 10 and the circuit board 50, and a specific extending path may be freely selected according to the position relationship between the circuit board 50 and the housing 10 and the position relationship between the electronic elements on the circuit board 50 during installation, thereby facilitating the installation of the first light guide medium 401, the first light guide medium 401 only occupies the empty space in the housing 10, and the utilization rate of the space in the housing 10 is improved.

The structure of the second light guide medium 402 in this scenario is substantially the same as the structure of the light guide medium 40 in the above scenario, the second light guide medium 402 may include a second transparent core and a second protective layer wrapped outside the second transparent core, an end of the second transparent core facing the light transmission region is a first end, an end of the second transparent core facing the light detection device is a second end, external light reflected by an external object is injected into the second transparent core from the first end of the second transparent core, the light is transmitted to the second end in the second transparent core, and is injected from the second end, and the external light irradiates on the light detection device 302.

In an implementation, only one second transparent core is disposed between the light-transmissive region and the light detecting device 302, and the second transparent core is externally wrapped with a second protective layer to protect the second transparent core. Further, still be provided with the second reflection stratum between transparent heart yearn of second and second protective layer, be pipy second reflection stratum parcel on the transparent heart yearn of second, the inside light of the transparent heart yearn of second takes place to reflect on the second reflection stratum, and the second reflection stratum can prevent that light from being jetted out by the lateral wall of the transparent heart yearn of second, and then avoids the in-process of outside light transmission to take place the loss in the transparent heart yearn of second.

The second reflecting layer can be made of a transparent material with a refractive index different from that of the second transparent core wire, and light can be reflected at the boundary position between the second transparent core wire and the second reflecting layer due to the fact that the refractive index is different from that of the second transparent core wire; in addition, light entering the second reflective layer will be reflected at the outer surface of the second reflective layer 4 to reflect the light towards the second transparent core. In this embodiment, the refractive index of the second reflective layer is smaller than the refractive index of the second transparent core, so that the light can be totally reflected at the boundary position between the second reflective layer and the second transparent core, and further the light is prevented from entering the second reflective layer, thereby reducing the loss of the light in the transmission process of the second light guide medium 402.

The second reflective layer may also be a metal layer, the metal layer is wrapped outside the second transparent core, and the light emitted from the inside of the second transparent core may be reflected on the metal layer, so that the light enters the second transparent core again; in order to reduce the light loss, the inner wall of the tubular metal layer can be smooth as much as possible. It is understood that the metal layer may be composed mainly of a metal such as silver, aluminum, or the like.

In an implementation manner, the second transparent core wires may be multiple, multiple second transparent core wires are arranged in parallel to form a bundle of light guiding beams, and the multiple second transparent core wires can simultaneously transmit external light to the light detection device 302, so as to increase the illumination intensity of the light irradiated on the light detection device 302.

In this application embodiment, the second protective layer can wrap around all the second transparent core wires, and the second protective layer can fix a plurality of second transparent core wires together while protecting the second transparent core wires. Further, all parcel has on each transparent core line of second in the second protective layer to be pipy second reflection stratum, and the inside light of transparent core line of second takes place to reflect on the second reflection stratum, and the second reflection stratum can prevent that light from being jetted out by the lateral wall of the transparent core line of second, and then avoids the in-process of light transmission in the transparent core line of second to take place the loss.

Of course, in this embodiment of the application, a second protective layer may be further wrapped on each second transparent core wire in the light guide bundle to protect each second transparent core wire, and a second reflective layer and a second protective layer are sequentially wrapped outside each second transparent core wire.

In the foregoing implementation manner, the second transparent core wire may have a certain flexibility, so that the second light guide medium 402 has a certain flexibility, and further, the second light guide medium 402 may be deformed in the installation process, so that the second light guide medium 402 extends in the gap between the housing 10 and the circuit board 50, and a specific extending path may be freely selected according to the position relationship between the circuit board 50 and the housing 10 and the position relationship between the electronic elements on the circuit board 50 during installation, thereby facilitating the installation of the second light guide medium 402, the second light guide medium 402 occupies the empty space in the housing 10, and the utilization rate of the space in the housing 10 is improved.

In the above implementation, the light source 301 and the light detection device 302 may be disposed on the circuit board 50 at intervals, and the extending paths of the first light guiding medium 401 and the second light guiding medium 402 in the housing 10 may be different; of course, the extending paths of the first light guiding medium 401 and the second light guiding medium 402 in the housing 10 may be the same.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A terminal device, comprising:

the light source comprises a shell, wherein a light-transmitting area for external light to enter the shell is arranged on the shell;

a circuit board disposed in the housing or formed integrally with the housing;

the detection device and the light guide medium are arranged in the shell;

the first end of the light guide medium is arranged towards the light transmission area so as to receive the external light from the light transmission area; the second end of the light guide medium faces the detection device, and the external light is reflected for multiple times in the light guide medium and then is transmitted to the second end;

the detection equipment is arranged on the circuit board and is located at a preset position which is away from the preset distance of the light-transmitting area, and the light guide medium is located in a gap between the shell and the circuit board.

2. The terminal device of claim 1, wherein the light-guiding medium comprises a transparent core and a protective layer, the protective layer being wrapped around the transparent core.

3. The terminal device according to claim 2, wherein the transparent core wire is plural, the plural transparent core wires are arranged in parallel to constitute a light guide bundle, and the protective layer is wrapped outside the light guide bundle.

4. The terminal device according to claim 2, wherein the transparent core wire is provided in plurality, the plurality of transparent core wires are arranged in parallel, and each transparent core wire is wrapped with the protective layer.

5. A terminal device according to any of claims 2-4, wherein the light-conducting medium further comprises a reflective layer between the protective layer and the transparent core, the reflective layer being wrapped around the transparent core, light rays propagating within the light-conducting medium being reflected at the reflective layer.

6. A terminal device according to claim 5, characterized in that the reflecting layer is a transparent layer having a refractive index smaller than the refractive index of the transparent core.

7. A terminal device according to claim 5, characterized in that the reflecting layer is a metal layer.

8. A terminal device according to claim 1, characterized in that the light-guiding medium is a flexible light-guiding medium.

9. A terminal device according to claim 1, characterized in that the detection device comprises a light source and a light detection means, both being arranged towards the second end; the light source emits light to the outside of the shell through the light guide medium and the light transmitting area, the light is reflected on an external object to form the external light, and the external light is emitted to the light detection device through the light guide medium.

10. The terminal device according to claim 9, wherein the light guide medium comprises a first light guide medium and a second light guide medium, first ends of the first light guide medium and the second light guide medium are both disposed toward the light transmissive region, a second end of the first light guide medium is disposed toward the light source, and a second end of the second light guide medium is disposed toward the light detection device.