CN218850802U

CN218850802U - Mobile terminal

Info

Publication number: CN218850802U
Application number: CN202223600825.6U
Authority: CN
Inventors: 陈鹏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-11
Anticipated expiration: 2032-12-29

Abstract

The application discloses mobile terminal, which comprises a housin, the circuit board, the light emission device, the display screen subassembly, light receiving device and circuit board, the casing forms and has open-ended accommodation space, the circuit board sets up in accommodation space, the light emission device sets up on the circuit board, the display screen subassembly electricity is connected in the circuit board and is located the open-ended one side of circuit board towards accommodation space, the display screen subassembly corresponds the light emission device and is equipped with first hole, the region that corresponds this first hole on the display screen subassembly is configured to non-pixel region, set up on the circuit board during light reception, and with the adjacent setting of light emission device, it is equipped with the second hole to correspond the light emission device on the display screen subassembly, the region that corresponds the second hole on the display screen subassembly is configured to the pixel region. By the adoption of the mobile terminal, the area of the through holes arranged on the display screen assembly for avoiding the gaps can be reduced, so that the influence on the integrity of the display screen assembly can be reduced, and the display screen assembly is favorably displayed completely.

Description

Mobile terminal

Technical Field

The application relates to the technical field of depth information detection, in particular to a mobile terminal.

Background

With the development of mobile terminals such as mobile phones and tablet computers, the functional requirements of users on the mobile terminals are higher and higher. At present, a TOF (Time of Flight) transmitting device and a TOF receiving device may be provided in a mobile terminal to implement 3D depth imaging. In the related art, both the TOF transmitting device and the TOF receiving device are arranged inside the mobile terminal, and meanwhile, corresponding through holes are correspondingly formed in the screen of the mobile terminal to avoid space for light to penetrate through. However, this method may damage the integrity of the screen, and is not favorable for the complete display of the screen.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application discloses a mobile terminal, which can reduce the influence on the integrity of a screen and is beneficial to the complete display of the screen.

In order to achieve the above object, the present application discloses a mobile terminal including a housing forming an accommodation space having an opening;

a circuit board disposed in the accommodating space;

a light emitting device disposed on the circuit board and electrically connected to the circuit board;

the display screen assembly is electrically connected to the circuit board and located on one side of the circuit board, facing the opening of the accommodating space, connected to the shell and used for covering the opening of the accommodating space, a first hole is formed in the display screen assembly corresponding to the light emitting device, and an area, corresponding to the first hole, of the display screen assembly is configured to be a non-pixel area;

the light receiving device is arranged on the circuit board and electrically connected to the circuit board, the light receiving device and the light emitting device are arranged adjacent to each other at intervals, a second hole is formed in the display screen assembly corresponding to the light receiving device, and the area of the display screen assembly corresponding to the second hole is configured to be a pixel area.

Compared with the prior art, the beneficial effect of this application lies in:

according to the mobile terminal provided by the application, the light emitting device and the light receiving device are arranged on the circuit board and respectively correspond to the first hole and the second hole formed in the display screen assembly, and meanwhile, the area corresponding to the first hole in the display screen assembly is limited to be configured as a non-pixel area, and the area corresponding to the second hole is configured as a pixel area. In other words, the position picture on the display screen assembly corresponding to the light emitting device cannot be displayed, and the position picture on the display screen assembly corresponding to the light receiving device can normally display the picture, that is, the light receiving device is actually an off-screen receiving device. Therefore, the mobile terminal can reduce the area of the through holes arranged on the display screen assembly to avoid the gaps, can reduce the influence on the integrity of the display screen assembly, and is favorable for the complete display of the display screen assembly.

Drawings

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

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

fig. 2 is a schematic structural diagram of a mobile terminal disclosed in an embodiment of the present application;

fig. 3 is a schematic diagram of a stacked structure of a mobile terminal disclosed in an embodiment of the present application;

fig. 4 is an enlarged view at a in fig. 3;

fig. 5 is a front view of a mobile terminal disclosed in an embodiment of the present application;

fig. 6 is another front view of the mobile terminal disclosed in the embodiments 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 only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

Currently, there are two mainstream face recognition schemes, that is, whether a person is determined by a structured light or TOF scheme, that is, by distinguishing a 3D face (i.e., depth information) from a 2D photograph.

In the structured light scheme, attribute identification is mainly carried out through 2D images, namely, a group of dot matrix infrared light sources are shot through a light emitting module, the dot matrix infrared light sources are shot through an infrared camera, and if the dot matrix infrared light sources are 2D pictures, the dot matrix infrared light sources are uniformly arranged; if the camera is a real person, the dot matrix infrared light sources can be irradiated on 3D positions with different depths, and distances between shot points are different, so that the camera can judge whether the camera is a real person or a photo according to depth information of each point.

In the TOF scheme, a group of dot matrix infrared light sources are emitted by a light emitting module, the time of each point emitting to return is received by an infrared receiving module, the flight time of light rays at points (such as forehead and chin) on the face far away from the screen is longer in the air, and the flight time of light rays at points (such as nose tip) on the face close to the screen is shorter in the air, so that depth information can be obtained, and whether a real person or a photo is judged according to the depth information.

Based on this, the above-mentioned face recognition scheme based on depth information all has the common point that an LED module capable of emitting infrared light and a receiving module capable of receiving infrared light are required.

In the related art, as shown in fig. 1, the liu hai screen 200 is added to the screen of the mobile terminal (i.e., the display area of the screen is occupied, and the area is made into a non-display position) and holes are dug in the liu hai screen to avoid gaps. This is because the LED module capable of emitting infrared light cannot be directly placed under the screen due to the photoelectric effect. If the LED module that directly will emit the infrared light is arranged in the screen below, then the infrared light of transmission can arouse electron and produce the electric current, and arouse the display circuit luminous that the electric current can drive the screen, and the screen is driven for a long time and is luminous and finally can lead to burning the screen phenomenon to take place, influences mobile terminal's life.

Therefore, in the related art, only the bang screen and the hole digging and space avoiding scheme on the bang screen can be adopted, and the mode can damage the integrity of the screen and is not beneficial to the complete display of the screen.

In order to solve the above problem, the present application discloses a mobile terminal, in which a light emitting device and a light receiving device are disposed on a circuit board and a first hole and a second hole are formed in a display screen assembly, respectively, and a region corresponding to the first hole is configured as a non-pixel region and a region corresponding to the second hole is configured as a pixel region. Namely, the light receiving device is set as a screen lower receiving device, so that the design of digging holes and avoiding spaces on the screen can be reduced, the influence on the integrity of the display screen assembly can be reduced, and the complete display of the display screen assembly is facilitated.

The following describes a specific embodiment of the mobile terminal of the present application in detail with reference to the accompanying drawings.

The application discloses a mobile terminal, which may include, but is not limited to, mobile terminals such as mobile phones, tablet computers, notebook computers, ultra-mobile personal computers (UMPCs), handheld computers, interphones, netbooks, POS machines, personal Digital Assistants (PDAs), wearable devices, virtual reality devices, bluetooth speakers, and in-vehicle devices.

For convenience of description, the embodiment specifically describes the mobile terminal as a mobile phone.

Referring to fig. 2 to 4 together, in particular, the mobile terminal 100 includes a housing 10, a circuit board 20, a light emitting device 30, a display screen assembly 40, and a light receiving device 50. The housing 10 forms an accommodating space (not shown) having an opening, and the circuit board 20 is disposed in the accommodating space. The light emitting device 30 is disposed on the circuit board 20 and electrically connected to the circuit board 20, and the display panel assembly 40 is electrically connected to the circuit board 20 and located at a side of the circuit board 20 facing the opening of the receiving space, so that the display panel assembly 40 can be connected to the housing 10 and cover the opening of the receiving space. The display screen assembly 40 is provided with a first hole 410 corresponding to the light emitting device 30, the first hole 410 may be used for passing light emitted from the light emitting device 30, and an area of the display screen assembly 40 corresponding to the first hole 410 is configured as a non-pixel area. The light receiving device 50 is also disposed on the circuit board 20 and electrically connected to the circuit board 20, the light receiving device 50 being disposed adjacent to and spaced apart from the light emitting device 30. A second hole 411 is provided on the display screen assembly 40 corresponding to the light receiving device 50, the second hole 411 is used for light to pass through so that the light can reach the light receiving device 50 and be received by the light receiving device 50, and the area of the display screen assembly 40 corresponding to the second hole 411 is configured as a pixel area.

It should be noted that the non-pixel areas mentioned above refer to: the area of the display screen assembly 40 corresponding to the area is not provided or is an area avoiding the pixel unit, that is, the picture can not be displayed through the non-pixel area. And the pixel area refers to: the display screen assembly 40 has a region in which pixel units are disposed corresponding to the region, that is, a picture can be displayed through the pixel region.

The present application provides a mobile terminal 100, wherein a light emitting device 30 and a light receiving device 50 are disposed on a circuit board 20, and a first hole 410 and a second hole 411 are respectively opened on a display screen assembly 40, and a region corresponding to the first hole 410 on the display screen assembly 40 is configured as a non-pixel region, and a region corresponding to the second hole 411 is configured as a pixel region. In other words, the position picture on the display screen assembly 40 corresponding to the light emitting device 30 cannot be displayed, and the position picture on the display screen assembly 40 corresponding to the light receiving device 50 can normally display the picture, that is, the light receiving device 50 is actually an under-screen receiving device. Therefore, the mobile terminal 100 of the present application can reduce the area of the through holes formed in the display screen assembly 40 to avoid the space, thereby reducing the influence on the integrity of the display screen assembly 40 and facilitating the complete display of the display screen assembly 40. In addition, since the area of the display panel assembly 40 corresponding to the first hole 410 is a non-pixel area, the situation that the electrons emitted from the light emitting device 30 excite the display circuit (i.e., the pixel unit) of the display panel assembly 40 to emit light can be avoided, thereby avoiding the occurrence of the burn-in phenomenon.

It is understood that the light emitting device 30 may be an LED light source for emitting infrared light, and the light receiving device 50 may be an infrared camera module capable of receiving infrared light. The light emitting device 30 may be directly soldered to the circuit board 20 when disposed on the circuit board 20, or may be snapped to the circuit board 20 via the flexible circuit board 20 and the connector to electrically connect the light emitting device 30 to the circuit board 20. Accordingly, when the light receiving device 50 is disposed on the circuit board 20, the light receiving device 50 can be electrically connected to the circuit board 20 by the flexible circuit board 20 and the connector being snapped to the circuit board 20.

Alternatively, the housing 10 may be a casing of a mobile phone, which is integrally formed with a rear cover, and the front surface of the housing 10 is opened to form the accommodating space, so as to facilitate assembling the circuit board 20, the display screen assembly 40, and the like.

Alternatively, the housing 10 may include a middle frame and a rear cover, which are coupled to form the receiving space.

In some embodiments, the display screen assembly 40 may include a conductive layer 41 and a display panel layer 42 sequentially stacked along the opening direction of the circuit board 20 to the accommodating space, and a plurality of pixel units (not shown) are disposed on the display panel layer 42. Specifically, the conductive layer 41 may be a copper foil layer, the display panel layer 42 is a layer where the pixel unit is located, and the conductive layer 41 is closer to the circuit board 20 than the display panel layer 42, so as to facilitate electrical connection with the circuit board 20.

Further, as can be seen from the foregoing, the display panel assembly 40 is provided with the first hole 410 and the second hole 411, so that the first hole 410 can penetrate through the conductive layer 41 and the display panel layer 42, that is, when the pixel unit is disposed on the display panel layer 42, the position of the first hole 410 needs to be avoided, so that the pixel unit is not disposed at the position corresponding to the first hole 410, and the picture cannot be displayed, so that when the user views from the display screen of the mobile terminal 100, the area corresponding to the first hole 410 is a black area, that is, a non-display area. Accordingly, the second hole 411 only penetrates the conductive layer 41, in other words, the display panel layer 42 may cover a position on the conductive layer 41 corresponding to the second hole 411, so that a pixel unit is disposed on the display panel layer 42 corresponding to the second hole 411, that is, the display panel layer 42 may normally display a picture at a position corresponding to the second hole 411, so that when a user views from the display screen of the mobile terminal 100, an area corresponding to the second hole 411 is a normal display area.

It can be seen that, according to the scheme of the present application, the corresponding area of the second hole 411 for the light receiving device 50 to receive light on the display screen assembly 40 is the pixel area, that is, the light receiving device 50 is a receiving device under the screen, so that it is not necessary to dig a hole on the display panel layer 42 of the screen, and the problem of the display area of the screen occupied by digging a hole on the screen is reduced, which is beneficial to the complete display of the screen.

In some embodiments, the display panel layer 42 may include a display area 420 and a non-display area 421 located at the periphery of the display area 420, when actually disposed, the pixel units are disposed in the display area 420, but the non-display area 421 is not disposed with the pixel units, and when the user views the display screen of the mobile terminal 100, the non-display area 421 is a black border surrounding the periphery of the display area 420.

For example, the first hole 410 may be located in the display area 420, and the second hole 411 is disposed corresponding to the display area 420, that is, when the first hole 410 penetrates through the display panel layer 42, the first hole may penetrate through the display area 420 of the display panel layer 42. Accordingly, the second hole 411 may penetrate the conductive layer 41 at a position corresponding to the display region 420. Thus, the user may view the position of the first hole 410 on the display area 420 while viewing the display screen of the mobile terminal 100.

As another example, the first hole 410 may be located in the non-display area 421, and the second hole 411 may be disposed corresponding to the display area 420. That is, when the first hole 410 penetrates the display panel layer 42, it may penetrate the non-display area 421 of the display panel layer 42, that is, the first hole 410 is located in the black border area of the display panel layer 42, and the second hole 411 may penetrate the conductive layer 41 at a position corresponding to the display area 420. In this way, when viewing the display screen of the mobile terminal 100, the user can view the position of the first hole 410 in the non-display area 421 (i.e., the black border area). The first hole 410 is located in the non-display area 421, so that the occupation of the display area 420 by the first hole 410 can be reduced, the display of the display area 420 is more complete, and the display integrity of the display screen is improved.

It should be noted that, considering that the first hole 410 is used for allowing the light emitted by the light emitting device 30 to pass through and the second hole 411 is used for the light receiving device 50 to receive the light, the first hole 410 and the second hole 411 should be as close as possible to avoid the problems that the distance between the two is too long, which results in light loss, and the time or distance for the light receiving device 50 to receive the light is too long, which affects the accuracy and efficiency of depth information detection.

Based on this, whether the first hole 410 is located in the display area 420 or the non-display area 421, on the display screen assembly 40, the second hole 411 should be located close to the first hole 410, for example, when the first hole 410 is located in the display area 420, the second hole 411 is also located in the display area 420, and the two holes can be located side by side in the width direction of the housing 10 near the top end of the housing 10 (as shown in fig. 5). Alternatively, when the first hole 410 is located in the non-display area 421, the second hole 411 is located in the display area 420, and the two holes may be arranged side by side along the length direction of the housing 10 at a position near the top end of the housing 10, or may be arranged at an angle along the width direction of the housing 10 at a position near the top end of the housing 10 (as shown in fig. 6).

Alternatively, the aperture of the first hole 410 may be larger or slightly larger than the outer diameter of the light emitting device 30, and meanwhile, in order to reduce the area occupied by the first hole 410 to the display region 420 or the non-display region 421, the aperture of the first hole 410 may be smaller than 4.6mm, so that when a user views the display screen of the mobile terminal 100, only a very small region can be viewed as a black region, thereby reducing the influence of the first hole 410 on the display effect of the display screen. For example, the aperture of the first hole 410 may be determined according to the outer diameter of the light emitting device 30, for example, if the outer diameter of the light emitting device 30 may be set to 2mm, 3mm, 4mm, etc., the aperture of the first hole 410 may be set to 2.5mm, 3.5mm, etc., correspondingly.

In some embodiments, a shielding layer 412 is disposed in the first aperture 410, and the shielding layer 412 is configured to allow infrared light emitted by the light emitting device 30 to pass therethrough and shield visible light, so that the light emitting device 30 in the first aperture 410 can be shielded from a user viewing the light emitting device 30 on a display screen without affecting the infrared light that the first aperture 410 can normally emit through the light emitting device 30. Illustratively, the shielding layer 412 may be a black ink layer, so that, due to the presence of the shielding layer 412, when a user views the display screen of the mobile terminal 100, the region where the first hole 410 is viewed is a black region, i.e., the user cannot view the light emitting device 30.

Further, as can be seen from the foregoing, the first hole 410 penetrates the conductive layer 41 and the display panel layer 42, and based on this, the first hole 410 may include a first opening located on the conductive layer 41 and a second opening located on the display panel layer 42, the light emitting device 30 may be disposed near the first opening, that is, the first opening is disposed near the circuit board 20, the shielding layer 412 is disposed at the second opening, and the shielding layer 412 is lower than or flush with a side surface of the display panel layer 42 facing away from the conductive layer 41. That is, the shielding layer 412 is disposed in the area where the first hole 410 is located on the display panel layer 42, and the shielding layer 412 is lower than or flush with the surface of the display panel layer 42 away from the conductive layer 41, so that the shielding layer 412 can not protrude out of the display panel layer 42 while the light emitting device 30 is effectively shielded by the shielding layer 412, the influence of the shielding layer 412 on the overall thickness of the display screen assembly 40 is reduced, and the overall flatness of the display screen assembly 40 can also be ensured.

In some embodiments, a light-shielding layer 413 is disposed between the first aperture 410 and the second aperture 411, the light-shielding layer 413 being configured to block light emitted by the light-emitting device 30 from being transmitted onto the display panel layer 42 and/or the light-receiving device 50. In an exemplary embodiment, since the first hole 410 is disposed corresponding to the light emitting device 30, and the aperture of the first hole 410 is larger than or slightly larger than the outer diameter of the light emitting device 30, the light shielding layer 413 may be disposed on an inner wall surface of the first hole 410, and the light shielding layer 413 may be disposed around the inner wall surface of the first hole 410, that is, the light shielding layer 413 is located on the outer periphery of the light emitting device 30 along the emitting direction of the light emitting device 30, so that when the light emitting device 30 emits infrared light to the first hole 410, if some infrared light is scattered outwards, the infrared light can be shielded by the light shielding layer 413, so as to prevent the infrared light from being emitted onto the display panel layer 42 and received by the light receiving device 50 when the infrared light is not emitted to an identification object (such as a human face), thereby preventing the display panel assembly 40 from having optical crosstalk.

Alternatively, the light shielding layer 413 may be disposed at the outer circumference of the first hole 410. At this time, a through hole penetrating to the display panel layer 42 may be provided on the conductive layer 41 and surrounding the outer periphery of the first hole 410, so that the light shielding layer 413 may be provided in the through hole, and also a problem of preventing light crosstalk of light emitted from the light emitting device 30 on the display panel layer 42 can be solved.

For example, the light shielding layer 413 may include, but is not limited to, foam, or light shielding glue. Taking the example that the light shielding layer 413 is disposed on the inner wall surface of the first hole 410, when the light shielding layer 413 is a foam, it can be attached to the inner wall surface of the first hole 410 by a back adhesive, and when the light shielding layer 413 is a light shielding adhesive, it can be coated on the inner wall surface of the first hole 410 by a coating method.

Optionally, the display screen assembly 40 may further include a light-transmissive cover plate layer 43, and the light-transmissive cover plate layer 43 may be disposed on a side of the display panel layer 42 facing away from the conductive layer 41, so that the light-transmissive cover plate layer 43 can protect the display panel layer 42. For example, the light-transmissive cover 43 may be a glass cover or a light-transmissive plastic cover.

Optionally, considering that the mobile terminal 100 of the present application may be a mobile phone, a tablet computer, and the like, therefore, the mobile terminal 100 further includes a camera module 60, the camera module 60 may also be disposed on the circuit board 20, and a third hole 414 is further disposed on the display screen assembly 40 corresponding to the camera module 60, and a region of the display screen assembly 40 corresponding to the third hole 414 is configured as a pixel region. In other words, the camera module 60 can be a front camera module, which is also a camera module under a screen, that is, the pixel units can be configured on the display screen assembly 40 at the position corresponding to the camera module 60. Specifically, as can be seen from the foregoing description, the display panel assembly 40 includes a conductive layer 41 and a display panel layer 42, the third hole 414 can penetrate through the conductive layer 41, and a pixel unit is disposed on the display panel layer 42 at a position corresponding to the third hole 414, so that the display panel assembly 40 can also display a picture in an area corresponding to the third hole 414.

Therefore, it can be seen that this application adopts and all sets up light receiving device 50, leading module 60 of making a video recording in the below of display screen subassembly 40, namely, make light receiving device 50, leading module 60 of making a video recording be the setting mode under the screen, thereby need not to dig the hole on display panel layer 42 of display screen subassembly 40, namely, only need on display panel layer 42 of display screen subassembly 40 to dig the hole corresponding to light emitting device 30 can, the area of digging the hole on display panel layer 42 has been reduced widely, thereby be favorable to this mobile terminal 100's the integrality of screen display.

Further, the distance from the first hole 410 to the second hole 411 is smaller than the distance from the first hole 410 to the third hole 414, that is, when setting, the camera module 60 can be set at one end of the light receiving device 50 far away from the light emitting device 30, that is, the light receiving module is located between the light emitting device 30 and the camera module 60, so as to satisfy the requirement of the distance between the light emitting device 30 and the light receiving device 50, avoid the distance between the two from being too far, and simultaneously avoid the condition that the light emitted by the light emitting device 30 is received by the camera module 60.

Optionally, when the camera module 60 is disposed on the circuit board 20, the flexible circuit board 20 and the connector can be fastened to the circuit board 20, so as to electrically connect the camera module 60 and the circuit board 20.

The mobile terminal disclosed in the embodiment of the present application is described in detail above, and specific examples are applied herein to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the mobile terminal and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A mobile terminal, characterized by: comprises that

A housing forming an accommodating space having an opening;

a circuit board disposed in the accommodating space;

2. The mobile terminal of claim 1, wherein: the display screen assembly comprises a conducting layer and a display panel layer which are sequentially stacked in the opening direction of the accommodating space along the circuit board, a plurality of pixel units are arranged on the display panel layer, the first hole penetrates through the conducting layer and the display panel layer, the second hole penetrates through the conducting layer, and the pixel units are arranged in the area corresponding to the second hole on the display panel layer.

3. The mobile terminal of claim 2, wherein: the display panel layer comprises a display area and a non-display area positioned on the periphery of the display area, the display area is provided with a plurality of pixel units, and the second hole is arranged corresponding to the display area;

the first hole is located in the display region, or the first hole is located in the non-display region.

4. The mobile terminal of claim 2, wherein: a shielding layer is arranged in the first hole and is configured to allow infrared light emitted by the light emitting device to pass through and shield visible light.

5. The mobile terminal of claim 4, wherein: the first hole comprises a first opening located in the conductive layer and a second opening located in the display panel layer, the light emitting device is arranged close to the first opening, the shielding layer is arranged at the second opening, and the shielding layer is lower than or flush with the surface of one side, away from the conductive layer, of the display panel layer.

6. The mobile terminal of claim 2, wherein: a light shielding layer is disposed between the first aperture and the second aperture, the light shielding layer configured to block transmission of light emitted by the light emitting device to the display panel layer and/or the light receiving device.

7. The mobile terminal of claim 2, wherein: the display screen assembly further comprises a light-transmitting cover plate layer, and the light-transmitting cover plate layer is arranged on one side, deviating from the conducting layer, of the display panel layer.

8. The mobile terminal according to any of claims 1-7, characterized in that: the first hole has a hole diameter of less than 4.6mm.

9. The mobile terminal according to any of claims 1-7, wherein: the mobile terminal further comprises a camera module, the camera module is arranged on the circuit board, the display screen assembly corresponds to the camera module and is further provided with a third hole, and the display screen assembly corresponds to the third hole, and the area of the third hole is configured to be a pixel area.

10. The mobile terminal of claim 9, wherein: the distance from the first hole to the second hole is less than or equal to the distance between the first hole to the third hole.