CN111308784B

CN111308784B - Display screen assembly and electronic equipment

Info

Publication number: CN111308784B
Application number: CN202010219040.0A
Authority: CN
Inventors: 贾玉虎
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2022-04-22
Anticipated expiration: 2040-03-25
Also published as: CN111308784A

Abstract

The application provides a display screen subassembly and electronic equipment, the display screen subassembly includes: the first polaroid is provided with a first through hole; the display substrate is arranged on the first polarizer and covers the first through hole; and the backlight module is arranged on one side of the first polaroid, which is deviated from the display substrate, and comprises a backlight body part and an annular sealing part, the backlight body part is provided with a second through hole communicated with the first through hole, one end of the annular sealing part is hermetically connected with the display substrate through the first through hole, and the other end of the annular sealing part is hermetically connected with the hole wall of the second through hole of the backlight module or the periphery of the second through hole of the backlight module so as to seal the hole wall of the first through hole of the first polaroid. The application provides a display screen assembly and electronic equipment with the same, wherein the display screen assembly can effectively prevent a polaroid from being corroded by water vapor after being perforated.

Description

Display screen assembly and electronic equipment

Technical Field

The application relates to the technical field of electronics, concretely relates to display screen assembly and electronic equipment.

Background

With the technical progress and the improvement of living standard of people, users demand more functions and fashionable appearance for electronic products such as mobile phones, tablet computers, cameras and the like. At present, the mobile phone is light and thin and close to a full-face screen, and a camera, a biological identification module, a distance detection and an optical device for ambient light detection are usually arranged in the screen through a hole, so that the polarizer of the display screen needs to be opened, however, after the polarizer is opened, the polarizer absorbs water vapor to cause failure risks such as display heterochromatic color and the like in an environmental test.

Disclosure of Invention

The application provides a display screen assembly and electronic equipment with the same, wherein the display screen assembly can effectively prevent a polaroid from being corroded by water vapor after being perforated.

In a first aspect, the present application provides a display screen assembly, including:

the first polarizer is provided with a first through hole;

the display substrate is arranged on the first polarizer and covers the first through hole; and

the backlight module is arranged on one side, away from the display substrate, of the first polaroid and comprises a backlight body part and an annular sealing part, the backlight body part is provided with a second through hole communicated with the first through hole, one end of the annular sealing part is connected with the display substrate through the first through hole in a sealing mode, and the other end of the annular sealing part is connected with the hole wall of the second through hole of the backlight module or the periphery of the second through hole of the backlight module in a sealing mode so as to seal the hole wall of the first through hole of the first polaroid.

In a second aspect, the present application provides an electronic device, including a camera and a display screen assembly, a lens of the camera is disposed in a space surrounded by an annular sealing portion, and the annular sealing portion is disposed at an interval.

The application provides a display screen subassembly, through set up annular seal portion on backlight unit, annular seal portion can separate the pore wall of the first through-hole of first polaroid and the external part of blind hole switch-on, the realization is sealed the first through-hole department at first polaroid, prevent external steam from getting into first polaroid through first through-hole, the polarisation material in the first polaroid of ripples bad, prevent that first through-hole department of polaroid from absorbing the inefficacy such as the demonstration heterochrosis that steam leads to, improve the display effect and the display life of display screen subassembly.

Drawings

In order to more clearly illustrate the technical solutions of 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 based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

FIG. 2 is a disassembled structure view of FIG. 1;

FIG. 3 is a top view of the display screen assembly of FIG. 2;

FIG. 4 is a cross-sectional view of the display screen assembly and camera of FIG. 3 taken along line A-A;

FIG. 5 is an enlarged, fragmentary view of the first display screen assembly and camera head of FIG. 4;

FIG. 6 is an enlarged, fragmentary view of the second display screen assembly and camera head of FIG. 4;

fig. 7 is a partially enlarged schematic view of the third display screen assembly and camera head of fig. 4.

Detailed Description

The technical solutions of 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.

Referring to fig. 1 and fig. 2, fig. 1 is a first perspective view of an electronic device 100. The electronic device 100 may be any device having a display screen assembly, such as: the portable or mobile computing device such as a tablet computer, a mobile phone, a palm top computer, a notebook computer, a game device, and the like, may also be a device such as a television, a personal computer, a vehicle-mounted device, a wearable device, and other electronic devices such as an electronic database, an automobile, and an Automated Teller Machine (ATM), but the present invention is not limited thereto. The present application takes a mobile phone as an example for specific description, and details are not repeated in the following. For convenience of description, the electronic device 100 is defined with reference to the first viewing angle, the width direction of the electronic device 100 is defined as the X direction, the length direction of the electronic device 100 is defined as the Y direction, and the thickness direction of the electronic device 100 is defined as the Z direction.

It should be noted that, in the embodiments of the present application, the same reference numerals denote the same components, and in different embodiments, detailed descriptions of the same components are omitted for the sake of brevity. It is understood that the thickness, length, width and other dimensions of the various components in the embodiments of the present application and the overall thickness, length, width and other dimensions of the fingerprint identification module shown in the drawings are only exemplary and should not limit the present application in any way.

Referring to fig. 2, fig. 2 is a schematic diagram illustrating a structure of an electronic device 100 according to an embodiment of the present disclosure. The electronic device 100 may include the display screen assembly 10, the middle frame 20, and the rear cover 30, which are fixedly engaged in turn.

Referring to fig. 2, the display screen assembly 10 is a structural assembly for displaying information and providing an interactive interface for a user of the electronic device 100. The middle frame 20 is disposed between the display screen assembly 10 and the rear cover 30, and can support and protect the display screen assembly 10. The middle frame 20 includes a middle housing portion 201 of the electronic device 100 and electronic functional components 202 disposed within the middle housing portion 201, the electronic functional components 202 including, but not limited to, a battery, a main board, a sub-board, a camera, a microphone, a receiver, a speaker, a flash, and the like. The rear cover 30 also serves as a battery cover and is provided on the back side of the electronic apparatus 100. The rear cover 30 may be separate or integrally formed with the intermediate housing portion 201. Of course, the electronic device 100 may further include other electronic functional elements, such as a flexible circuit board, various sensors for detecting light intensity, distance, position, movement, falling, etc., which are not illustrated herein.

Optionally, in some embodiments of the present application, the display screen assembly 10 may be specifically a touch display screen, which not only performs image display, but also detects a touch or pressing operation of a user, so as to provide a human-computer interaction interface for the user.

The structure of the display screen assembly 10 is illustrated in the following with reference to fig. 3 to 5.

Referring to fig. 5, the display panel assembly 10 at least includes a transparent cover plate 1, an optical adhesive 2, a second polarizer 3, a display substrate 4, a first polarizer 5 and a backlight module 6 stacked in sequence. Wherein, the second polarizer 3 is an upper polarizer. The first polarizer 5 is a lower polarizer. The display substrate 4 includes a color filter substrate 41, a liquid crystal layer 42 and an array substrate 43 sequentially disposed between the second polarizer 3 and the first polarizer 5.

It will be appreciated that the Display screen assembly 10 is a Liquid Crystal Display (LCD) screen.

It is understood that, unless otherwise specified in the present application, the components of the display substrate 4, the first polarizer 5 and the backlight module 6 are all disposed parallel to the X-Y plane.

In this embodiment, referring to fig. 5, the first polarizer 5 has a first through hole 51 for transmitting an optical signal. The axial direction of the first through hole 51 is parallel to the Z-axis direction.

Referring to fig. 5, the display substrate 4 is disposed on the first polarizer 5 and covers the first through hole 51.

As can be understood, referring to fig. 3 and 4, the display substrate 4 includes a display portion 46 and a non-display portion 47 surrounding the display portion 46. The display portion 46 is used to form an area of the display panel assembly 10 for displaying a picture. It is understood that the display portion 46 and the non-display portion 47 are integrally formed.

Further, the light-transmitting cover 1 includes a transparent cover (not shown) and a light-shielding layer (not shown) provided inside the transparent cover. The display portion 46 is a portion of the display substrate 4 corresponding to the light-transmitting region surrounded by the light-shielding layer. The non-display portion 47 is a portion of the display substrate 4 corresponding to the region where the light-shielding layer is located.

Wherein, transparent cover is the apron that the transmissivity is higher to visible light. For example. The transparent cover plate has a transmittance of visible light of 70% or more. The transparent cover plate is made of a transparent material including, but not limited to, glass, sapphire, resin, Polymethyl Methacrylate (PMMA), Polystyrene (PS), Polycarbonate (Polycarbonate), Polyethylene terephthalate (PET), and the like.

The shading layer can be shading ink with high shading rate to visible light. The color of the light-shielding ink includes, but is not limited to, white, black, and other colors. This is not specifically limited by the present application. The shading layer is used for shading light rays emitted by the backlight module 6.

In this embodiment, referring to fig. 3, the orthographic projection of the first through hole 51 on the display substrate 4 is located on the display portion 46 and close to the boundary between the display portion 46 and the non-display portion 47, so as to facilitate the subsequent arrangement of the optical device directly below the display portion 46. This optical device can be camera, fingerprint identification module, proximity sensor or ambient light sensor etc to realize respectively that the screen is shot under, fingerprint identification under the screen, distance detection or ambient light detection function such as detection under the screen, reduce the area that optical device occupies non-display portion 47 of display screen subassembly 10, improve the screen of display screen subassembly 10 and account for the ratio, promote the full-screen development of display screen subassembly 10.

The area of the front surface of the display screen assembly 10 corresponding to the display portion 46 forms a display area of the display screen assembly 10. The area of the front surface of the display screen assembly 10 corresponding to the non-display portion 47 forms a non-display area of the display screen assembly 10. In this embodiment, the display area and the non-display area constitute the front surface of the entire display screen assembly 10. The display area is substantially rectangular. The display area accounts for 85-96% of the area of the front surface of the whole display screen assembly 10. The orthographic projection of the first through hole 51 on the display substrate 4 may be located in a corner of the display area. For example in the upper left corner of the display area.

In this embodiment, the backlight module 6 is disposed on a side of the first polarizer 5 away from the display substrate 4, and is configured to emit light toward the display substrate 4 to provide display light for the display portion 46.

Referring to fig. 5, the backlight module 6 includes a backlight main body 7 and an annular sealing portion 8. The backlight body portion 7 is substantially rectangular and is disposed substantially parallel to the X-Y plane, on a side of the first polarizer 5 facing away from the display substrate 4. The backlight body portion 7 has a second through hole 70 communicating with the first through hole 51. In the present embodiment, the second through hole 70 is used to accommodate an optical device.

It can be understood that the portion between the first through hole 51 and the second through hole 70 can conduct light, so that the optical device receives the light signal through the first through hole 51 and the second through hole 70, and further the collection of the fingerprint signal, the image signal, the distance signal and the light intensity signal is realized. In the present application, the optical device is taken as the camera 40 for example to specifically describe, and the description is omitted later.

Specifically, referring to fig. 5, the orthographic projection of the first through hole 51 on the backlight main body portion 7 is at least partially within the area where the second through hole 70 is located. In the present embodiment, the central axis of the first through hole 51 is axially collinear with the central axis of the second through hole 70. The radial diameter of the second through hole 70 may be slightly larger than that of the first through hole 51, so that the second through hole 70 can accommodate the optical device with a larger accommodating space, and the aperture of the first through hole 51 only needs to be larger than the field angle range of the camera 40 on the first polarizer 5.

It can be understood that, referring to fig. 5, the display substrate 4 is sealed at an end of the first through hole 51, so that the first through hole 51 and the second through hole 70 form blind holes in the display panel assembly 10.

Alternatively, the first and second through holes 51 and 70 may be circular holes, rectangular holes, triangular holes, or the like. In this application, the first through hole 51 and the second through hole 70 are circular holes for example, and are not described in detail later.

The first polarizer 5 includes at least a protective film, a hydrolysis barrier layer (e.g., a cellulose triacetate layer), a polyvinyl alcohol layer, a hydrolysis barrier layer (e.g., a cellulose triacetate layer), a pressure-sensitive adhesive layer, and a release film, which are sequentially stacked. Among them, a polyvinyl alcohol layer plays a role of polarization, but the polyvinyl alcohol layer is very easily hydrolyzed. When the first polarizer 5 is provided with the first through hole 51, a part of the polyvinyl alcohol layer is exposed at the hole wall of the first through hole 51, which may cause the polyvinyl alcohol layer of the first polarizer 5 to absorb water vapor from the first through hole 51 to cause failure risks such as displaying different colors.

In this embodiment, referring to fig. 5, the annular sealing portion 8 may be integrally formed with the backlight main body portion 7 or separately disposed. One end of the annular sealing portion 8 is hermetically connected to the display substrate 4 through the first through hole 51. The other end of the annular sealing portion 8 is hermetically connected to the hole wall of the second through hole 70 of the backlight body portion 7 or the outer circumference of the second through hole 70 of the backlight body portion 7 to seal the hole wall of the first through hole 51 of the first polarizer 5.

Optionally, referring to fig. 5, one end of the annular sealing portion 8 away from the display substrate 4 is connected to the hole wall of the backlight module 6 in a sealing manner. Further, one end of the annular sealing portion 8 away from the display substrate 4 may be integrally formed with a part of the structure of the backlight module 6. Alternatively, one end of the annular sealing portion 8, which is away from the display substrate 4, may be hermetically connected between the first polarizer 5 and the backlight module 6, and includes being fixed on the first polarizer 5 or on the backlight module 6; alternatively, the end of the annular sealing portion 8 away from the display substrate 4 may be hermetically connected to the surface of the backlight module 6 away from the first polarizer 5. Other ways of sealing the hole wall of the first through hole 51 of the first polarizer 5, which are easily modified and modified by those skilled in the art according to the above technical solutions, are not given.

Specifically, the annular seal portion 8 is cylindrical with both ends open. The central axis of the annular seal portion 8 may be collinear with the central axis of the first through hole 51. The annular sealing part 8 can be attached to the hole wall of the first through hole 51 and the hole wall of the second through hole 70, so that the space occupied by the annular sealing part 8 itself is reduced, and the waste of space is reduced.

It will be appreciated that the annular seal 8 is made of a material that is effective in blocking water vapor (water proof), such as metal, plastic, etc.

Further, the material of the annular sealing portion 8 may be a light-shielding material. The annular seal 8 surrounds a space formed for accommodating at least part of the optical device. The optical device includes at least one of a camera 40, a light emitter, and a light receiver. The light emitter includes, but is not limited to, at least one of an infrared signal emitter, a visible light emitter, an infrared dot matrix projector, an ambient light detector. Optical receivers include, but are not limited to, infrared signal receivers, visible light receivers, and the like. The annular sealing part 8 is made of a light-shading material, so that the influence of light leakage through the hole wall of the first through hole 51 of the first polarizer 5 on the accuracy of information acquisition of an optical device in the second through hole 70 is reduced.

Through set up annular seal portion 8 on backlight unit 6, annular seal portion 8 can switch on external part with the pore wall of first through-hole 51 of first polaroid 5 and blind hole and separate, and then prevents that the steam among the external environment from getting into first polaroid 5 from first through-hole 51's pore wall, prevents effectively that first polaroid 5 from being hydrolysised and influencing the demonstration, improves display screen subassembly 10's display stability, improves electronic equipment 100's reliability.

Referring to fig. 5, the annular sealing portion 8 includes an annular main body 81 and an annular bending plate 82. The annular body portion 81 is cylindrical. The annular body portion 81 is formed by the light shielding support member extending into the second through hole 70 in the Z-axis direction. The annular bending plate 82 is formed by the annular body portion 81 extending toward the center of the first through hole 51 or away from the center of the first through hole 51 in the radial direction of the first through hole 51. The annular bending plate 82 is disposed opposite to the display substrate 4 with a small distance therebetween.

Referring to fig. 5, the display screen assembly 10 further includes an annular light shielding adhesive 9. The annular light-shielding adhesive 9 is adhered between the annular bending plate 82 and the display substrate 4, so that the annular sealing portion 8 is connected to the display substrate 4 in a sealing manner to seal the hole wall of the first through hole 51 of the first polarizer 5. The annular light shielding glue 9 is made of a light shielding material to prevent light leakage of the backlight module 6 and improve the shooting effect of the camera 40. In other words, the annular light shielding glue 9 has the function of connecting the annular sealing portion 8 and the display substrate 4 and the function of preventing light leakage of the backlight module 6.

The annular bending plate 82 arranged opposite to the display screen substrate is arranged at one end, connected with the display substrate 4, of the annular sealing part 8, so that the bonding area between the annular sealing part 8 and the annular shading glue 9 can be increased, and the sealing reliability and the shading effect between the annular sealing part 8 and the display substrate 4 are further improved.

Further, referring to fig. 5, the annular bending plate 82 extends toward the center of the first through hole 51 along the radial direction of the first through hole 51, so that the outer diameter of the annular body 81 can be slightly smaller than the inner diameter of the second through hole 70, and the size of the inner space of the annular sealing portion 8 is larger.

Referring to fig. 5, a portion of the annular light shielding adhesive 9 is adhered between the display substrate 4 and the annular sealing portion 8, and another portion of the annular light shielding adhesive 9 is adhered between the first polarizer 5 and the backlight module 6. Further, the annular body 81 can be as close to the wall of the second through hole 70 as possible, so that the effective bonding area of the annular light shielding glue 9 is larger, the bonding margin is less, and the structure of the display screen assembly 10 is more compact.

Specifically, referring to fig. 5, the surface of the annular bending plate 82 facing the display substrate 4 is higher than the surface of the backlight module 6 facing the display substrate 4. The height difference between the surface of the annular bending plate 82 facing the display substrate 4 and the surface of the backlight module 6 facing the display substrate 4 is approximately the thickness of the first polarizer 5, so that the annular light shielding glue 9 can be just sealed in the gap between the annular bending plate 82 and the display substrate 4, and the sealing protection of the first polarizer 5 is realized.

The first polaroid 5 and the display substrate 4 are bonded through the annular light-shielding glue 9, so that first resealing protection is formed on the hole wall of the first through hole 51 of the first polaroid 5, and the annular sealing part 8 forms second resealing protection on the hole wall of the first through hole 51 of the first polaroid 5, so that the dual protection effect further reduces the failure risks of display heterochrosis and the like caused by water vapor absorption of the hole wall of the first through hole 51 of the first polaroid 5; the annular sealing part 8 and the annular light shading glue 9 effectively prevent light rays of the backlight module 6 from leaking to the camera 40 in the second through hole 70, and the shooting quality of the camera 40 is improved; the arrangement of the annular bending plate 82 can greatly increase the bonding area between the annular light shielding glue 9 and the annular sealing part 8, and reduce the risk of separation and light leakage of the backlight module 6; the arrangement of the annular bending plate 82 can also form protection for the camera 40, so that the risk of impacting the display substrate 4 caused by excessive assembly of the camera 40 is avoided, and the risk of assembly deviation of the camera 40 caused by excessive assembly of the camera 40 is avoided.

In the present application, an end of the annular sealing portion 8 away from the display substrate 4 is hermetically connected to a hole wall of the second through hole 70 of the backlight body portion 7, so as to reduce the thickness of the display panel assembly 10 in the Z-axis direction. The specific structure of the backlight module 6 is described in detail below with reference to the accompanying drawings.

Referring to fig. 5, the backlight main body 7 includes an optical assembly 71 and a light shielding support 72. The light shielding support 72 is supported on a side of the optical assembly 71 facing away from the first polarizer 5.

Optionally, referring to fig. 5, the light shielding support 72 is used for supporting the optical assembly 71. In the side-view type backlight module 6, the optical assembly 71 of the backlight module 6 at least includes a reflective sheet 714, a light guide plate 713, a diffusion sheet 712, a prism sheet 711, etc. disposed on the light shielding support 72, and a visible light source (not shown) disposed at the side of the light guide plate 713. For the backlight module 6 of the vertical light emitting type, the optical assembly 71 of the backlight module 6 at least includes a visible light source, a light guide plate 713, a diffusion sheet 712, a prism sheet 711, etc. disposed on the light shielding support 72.

The present application takes a side-emitting backlight module 6 as an example. The prism sheet 711 is disposed under the first polarizer 5. The light shielding support 72 is supported by the reflective sheet 714. Visible light emitted from the visible light source is transmitted to the diffusion sheet 712 after being transmitted through the light guide plate 713, and light diffused by the diffusion sheet 712 is transmitted to the prism sheet 711. The prism sheet 711 is used for gaining the received optical signal, and transmitting the gained optical signal to the first polarizer 5 and the display substrate 4 for displaying images. Of course, the backlight module 6 is not limited to the optical assembly 71 of the above-mentioned kind, and the optical assembly 71 may not be provided with at least one of the diffusion sheet 712 and the prism sheet 711, or at least one of the reflection sheet 714, the light guide plate 713, the diffusion sheet 712 and the prism sheet 711 in the optical assembly 71 may be replaced by another composite film.

Optionally, the optical assembly 71 and the light shielding support 72 are provided with through holes communicating with each other to form the second through hole 70. In other words, the second through hole 70 sequentially penetrates through the prism sheet 711, the diffusion sheet 712, the light guide plate 713, the reflection sheet 714 and the light shielding support 72 along the Z-axis direction, so that the second through hole 70 has a larger size in the Z-axis direction to accommodate the optical device, thereby reducing the overall thickness of the display panel assembly 10 and the optical device after being mounted. Of course, in other embodiments, when the optical device is a device with a smaller thickness, the second through hole 70 may only penetrate through the light shielding support 72, or penetrate through the light shielding support 72 and not penetrate through the optical assembly 71.

In the present embodiment, an end of the annular sealing portion 8 remote from the display substrate 4 is integrally formed with at least a part of the light shielding support 72 or the optical member 71.

Optionally, the material of the light shielding supporting member 72 may be a material capable of shielding light and blocking water vapor. Specifically, the support is made of metal, such as aluminum alloy, magnesium alloy, or stainless steel. Of course, the supporting member may be made of a non-metal material such as hard plastic. The light transmittance of the support is low, for example, the light transmittance of the support is 10% or less.

Alternatively, referring to fig. 5, an end of the annular sealing portion 8 away from the display substrate 4 is integrally formed with the light shielding support 72. Specifically, the annular sealing portion 8 and the light-shielding support member 72 are made of the same material, and can also shield light and water vapor. Further, the second through hole 70 is integrally formed with the end of the annular sealing portion 8 away from the display substrate 4 through a hole wall formed by the light shielding support 72. In other words, the annular sealing portion 8 is a portion of the light shielding support 72 extending into the second through hole 70, so that the light shielding support 72 can support the optical assembly 71, and can seal the hole wall of the first through hole 51 of the first polarizer 5, and can shield the camera 40 disposed in the second through hole 70, so as to prevent light emitted by the backlight module 6 from leaking to the camera 40 in the second through hole 70, and further prevent adverse effects on shooting of the camera 40, so that the light shielding support 72 achieves multiple purposes, the light shielding support 72 is reasonably arranged, and multiple functions are integrated, the number of parts of the display screen assembly 10 is reduced, meanwhile, the process is saved, the cost is saved, the display stability of the display screen assembly 10 is improved, and the shooting quality of the camera 40 in the electronic device 100 is improved.

Optionally, the reflective sheet 714 of the optical assembly 71 has a characteristic of preventing light from passing through, in other words, the reflective sheet 714 also has a light shielding effect. Alternatively, the material of the reflective sheet 714 may include polyethylene terephthalate (PET), and the PET layer has a moisture blocking effect, in other words, the reflective sheet 714 has a light shielding and moisture blocking effect.

Alternatively, referring to fig. 6, an end of the annular sealing portion 8 away from the display substrate 4 may be integrally formed with an end of the reflective sheet 714. Specifically, the annular sealing portion 8 and the reflective sheet 714 are made of the same material, and can block light and water vapor. Further, the second through hole 70 is integrally formed with the end of the annular sealing portion 8 away from the display substrate 4 through a hole wall formed by the reflection sheet 714. In other words, the annular sealing portion 8 is a portion of the reflector 714 extending into the second through hole 70, so that the reflector 714 can reflect the display backlight, and can seal the hole wall of the first through hole 51 of the first polarizer 5, and can shield the camera 40 disposed in the second through hole 70, so as to prevent light emitted by the backlight module 6 from leaking to the camera 40 in the second through hole 70, and further prevent adverse effects on shooting of the camera 40.

It is understood that the light guide plate 713, the diffusion sheet 712, and the prism sheet 711 include a waterproof material.

In another embodiment, referring to fig. 7, an end of the annular sealing portion 8 away from the display substrate 4 may be integrally formed with an end of the light guide plate 713 (or the diffusion sheet 712 and the prism sheet 711) to achieve the effect of blocking moisture. Further, a light-shielding ink layer 83 may be disposed on the inner wall of the hole of the annular sealing portion 8 to prevent light of the optical assembly 71 from leaking to the camera 40 in the second through hole 70, so as to improve the shooting effect of the camera 40.

In the present application, the end of the annular sealing portion 8 away from the display substrate 4 and the hole wall formed by the second through hole 70 penetrating through the light shielding supporting member 72 are exemplified to be integrally formed, and the details are not repeated in the following.

Referring to fig. 5, the second polarizer 3 has a third through hole 31 corresponding to the first through hole 51. The central axis of the third through-hole 31 may be collinear with the central axis of the second through-hole 70. The aperture of the third through-hole 31 may be slightly smaller than the aperture of the second through-hole 70. The optical adhesive 2 is adhered between the transparent cover plate 1 and the second polarizer 3, and fills the third through hole 31.

The optical adhesive 2 has a high light transmittance, for example, a light transmittance of 90% or more. The transparent cover 1 may be made of glass or sapphire, and may be covered with the middle frame 20 of the electronic device 100, so as to firmly mount the display panel assembly 10 on the middle frame 20. The light-transmitting cover plate 1 can protect the display substrate 4 and a plurality of optical devices covered by the light-transmitting cover plate.

Referring to fig. 5, the display substrate 4 further includes a light-transmitting portion 44 and a light-shielding tube 45 penetrating through the color filter substrate 41, the liquid crystal layer 42 and the array substrate 43. The light-transmitting portion 44 serves to realize light conduction between the first through hole 51 and the third through hole 31. The light transmission portion 44 may have a cylindrical shape, and the diameter of the light transmission portion 44 may be slightly smaller than the diameter of the third through hole 31. The diameter of the light-transmitting portion 44 may be slightly larger than the diameter of the inner hole of the annular light-shielding paste 9 and larger than the diameter of the inner hole of the annular bending plate 82. The camera 40 in the second through hole 70 collects light through the light-transmitting cover plate 1, the optical cement 2, the light-transmitting portion 44, the first through hole 51 and the second through hole 70 in sequence. The light shielding tube 45 is made of opaque material. The light-shielding cylinder 45 is disposed around the light-transmitting portion 44, and the outer circumference of the light-shielding cylinder 45 includes, but is not limited to, a square, a circle, and the like. The outer diameter of the light shielding cylinder 45 may be larger than the aperture of the second through hole 70. The orthographic projection area of the shading cylinder 45 on the annular shading glue 9 covers the peripheral contour line of the annular shading glue 9. The light-transmitting portion 44 covers a part of the annular light-shielding paste 9 in an orthogonal projection region on the annular light-shielding paste 9. In this way, the light-shielded portion of the display portion 46 can be reduced as much as possible.

Further, referring to fig. 5, the outer diameter of the light shielding cylinder 45 may be equal to or approximately equal to the outer diameter of the annular light shielding glue 9, so that the light shielding area of the light shielding cylinder 45 coincides with the light shielding area of the annular light shielding glue 9, and the shielding of the lighting angle of view of the camera 40 is reduced.

Referring to fig. 5, it can be understood that the color filter substrate 41 includes a plurality of color resist blocks with different colors and a black matrix disposed between two adjacent color resist blocks. The array substrate 43 includes a plurality of gate lines, a plurality of data lines, a plurality of driving lines, a plurality of tfts, a gate driving circuit, and a data driving circuit. The driving lines can be connected with the grid driving circuit and the data driving circuit. Wherein. The gate driving circuit and the data driving circuit may be integrated within the display control chip.

The density of the color resist blocks and the black matrix in the portion of the color filter substrate 41 corresponding to the light-transmitting portion 44 may be greater than the density of the color resist blocks and the black matrix in the portion other than the light-shielding tube 45. Further, the light-transmitting portion 44 may not be provided with a color block or a black matrix. The electronic circuit and the thin film transistor in the portion of the array substrate 43 corresponding to the light-transmitting portion 44 may be arranged at a density higher than that of the electronic circuit and the thin film transistor in the portion other than the light-shielding cylinder 45. Further, the light-transmitting portion 44 may not include an electronic circuit and a thin film transistor.

The material of the light-shielding cylinder 45 may be the same as that of the black matrix in the color filter substrate 41, so that the light-shielding cylinder 45 can play a light-shielding effect to prevent light in the display substrate 4 from affecting the shooting of the camera 40. The material of the light shielding cylinder 45 may be black ink or black viscose.

Referring to fig. 2 and fig. 5 together, an electronic device 100 according to an embodiment of the present disclosure includes a camera 40, a display screen assembly 10 according to any one of the above embodiments, and a middle frame 20. The display screen assembly 10 covers the bezel 20. The middle frame 20 has a mounting groove. The lens base of the camera 40 is fixed in the mounting groove 203. The lens 401 of the camera 40 is disposed in the space surrounded by the annular sealing portion 8, and is disposed at an interval from the annular sealing portion 8, so as to implement the installation of the camera 40 in the display screen assembly 10. In other embodiments, the step surface of the lens holder 402 of the camera 40 may be fixed to the side of the backlight body portion 7 of the light shielding support 72 of the display screen assembly 10 facing away from the first polarizer 5.

Referring to fig. 5, the diameter of the through hole surrounded by the annular bending plate 82 is larger than the diameter of the lighting hole of the lens 401 of the camera 40 and smaller than the diameter of the outer circumference of the lens 401 of the camera 40, so as to increase the bonding area of the annular sealing portion 8 as much as possible and avoid the shielding of the viewing angle of the lighting of the camera 40.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The foregoing is a partial description of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. A display screen assembly, comprising:

the first polarizer is provided with a first through hole;

the backlight module comprises a backlight body part and an annular sealing part, wherein the backlight body part is arranged on one side of the first polaroid, which is deviated from the display substrate, the backlight body part is provided with a second through hole communicated with the first through hole, the backlight body part also comprises an optical assembly, one end of the annular sealing part is hermetically connected with the display substrate through the first through hole, the other end of the annular sealing part and at least part of the optical assembly are integrally formed, and the other end of the annular sealing part is hermetically connected with the hole wall of the second through hole of the backlight body part or the periphery of the second through hole of the backlight body part so as to seal the hole wall of the first through hole of the first polaroid.

2. The display screen assembly of claim 1, wherein the annular seal surrounds a space formed for receiving an optical device for receiving an optical signal through the first through hole; the annular sealing part is made of shading and waterproof materials.

3. The display screen assembly of claim 2, wherein the end of the annular sealing portion connected to the display substrate comprises an annular bending plate disposed opposite to the display substrate, the annular bending plate extends toward the center of the first through hole along the radial direction of the first through hole, the display screen assembly further comprises an annular light-shielding adhesive, the annular light-shielding adhesive is attached between the annular bending plate and the display substrate, and the annular light-shielding adhesive is further attached between the first polarizer and the backlight module.

4. The display panel assembly of any of claims 1 to 3, wherein the backlight body further comprises a light shielding support, the light shielding support is supported on a side of the optical assembly facing away from the first polarizer, and the optical assembly and the light shielding support are provided with through holes communicating with each other to form the second through hole.

5. The display screen assembly of claim 4, wherein the optical assembly comprises a reflective sheet that is capable of blocking light and water, the annular seal being integrally formed with the reflective sheet.

6. The display screen assembly of claim 3, further comprising a transparent cover plate, an optical adhesive and a second polarizer, which are sequentially stacked, wherein the second polarizer is disposed on a side of the display substrate facing away from the first polarizer, the second polarizer has a third through hole corresponding to the first through hole, and the optical adhesive is adhered between the transparent cover plate and the second polarizer and is filled in the third through hole.

7. The display screen assembly of claim 6, wherein the display substrate comprises a color film substrate, a liquid crystal layer, an array substrate, a light-transmitting portion and a light-shielding cylinder, the color film substrate, the liquid crystal layer and the array substrate are sequentially arranged between the first polarizer and the second polarizer, the light-transmitting portion penetrates through the color film substrate, the liquid crystal layer and the array substrate, the light-transmitting portion covers a part of the annular light-shielding adhesive in a forward projection area on the annular light-shielding adhesive, and the light-transmitting portion is used for achieving light conduction between the first through hole and the third through hole; the shading cylinder is arranged around the light transmission part, and the orthographic projection area of the shading cylinder on the annular shading glue covers the peripheral contour line of the annular shading glue.

8. The display panel assembly according to any one of claims 1 to 3, wherein the display substrate further includes a display portion and a non-display portion surrounding the display portion, the display portion is an area of the display panel assembly for displaying a picture, and an orthogonal projection of the first through hole on the display substrate is located on the display portion and near a boundary between the display portion and the non-display portion.

9. An electronic device, comprising a camera and the display screen assembly as claimed in any one of claims 1 to 8, wherein a lens of the camera is disposed in a space surrounded by the annular sealing portion and spaced from the annular sealing portion.

10. The electronic device according to claim 9, wherein the annular sealing portion is connected to a through hole surrounded by the annular bending plate of the display substrate, and the through hole has a diameter larger than a lighting hole diameter of the lens of the camera and smaller than an outer peripheral contour diameter of the lens of the camera.

11. The electronic device of claim 10, further comprising a center frame, wherein the display screen assembly covers the center frame, the center frame having a mounting slot, and wherein the lens holder of the camera is secured in the mounting slot.