WO2022174688A1

WO2022174688A1 - Housing assembly and display device

Info

Publication number: WO2022174688A1
Application number: PCT/CN2022/070527
Authority: WO
Inventors: 胡进
Original assignee: Oppo广东移动通信有限公司
Priority date: 2021-02-20
Filing date: 2022-01-06
Publication date: 2022-08-25
Also published as: CN214151307U

Abstract

Provided are a housing assembly (1) and a display device (100). The housing assembly (1) comprises a back plate (10) and at least one limiting member (20). The back plate (10) comprises a bottom plate (101) and a first side plate (102), wherein the bottom plate (101) is arranged opposite an optical assembly (21) in a first direction, and the first side plate (102) is arranged opposite the optical assembly (21) in a second direction that intersects the second direction. The limiting member (20) is arranged on the first side plate (102), and the limiting member (20) comprises a second side plate (201), wherein the second side plate (201) is arranged opposite the bottom plate (101), the second side plate (201) is pressed on the side of the optical assembly (21) that is away from the bottom plate (101), and the second side plate (201) is configured to limit the optical assembly (21) in the first direction; and the second side plate (201) is further provided with a first limiting arm (203) in a protruding manner, the first limiting arm (203) extends towards the bottom plate (101) in the first direction, and the first limiting arm (203) is configured to be arranged in a mounting portion of the optical assembly (21) in a penetrating manner so as to limit the optical assembly (21) in the second direction. The housing assembly (1) can better limit the optical assembly (21), and the display apparatus (100) has a better display effect.

Description

Housing assembly and display device

This application claims the priority of the Chinese patent application with the application number 202120387202.1 and the application title "Housing Assembly and Display Device" filed with the China Patent Office on February 20, 2021, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the field of display technology, and in particular, to a housing assembly and a display device.

Background technique

During the use and transportation of the display device, the internal devices, such as optical components, are prone to movement, which affects the display effect of the display device. Therefore, how to limit the position of the device provided inside the display device to improve the display effect of the display device has become a technical problem to be solved.

SUMMARY OF THE INVENTION

The present application provides a housing component that can better limit the optical component, and a display device that can prevent the optical component from moving easily and have a better display effect.

In one aspect, the present application provides a casing assembly for limiting an optical assembly, one end of the optical assembly is provided with a mounting portion, and the casing assembly includes:

a backplane, the backplane includes a connected bottom plate and a first side plate, the bottom plate is configured to be opposite to the optical assembly along a first direction, and the back plate is configured to be opposite to the optical assembly along a second direction arranged, the first direction intersects the second direction; and

At least one limiter, the limiter is arranged on the first side plate, the limiter includes a second side plate, the second side plate is opposite to the bottom plate, and the second side plate is The side plate is pressed against the side of the optical component away from the bottom plate, and the second side plate is used to limit the position of the optical component in the first direction; the second side plate is protruded There is a first limit arm, the first limit arm extends toward the bottom plate along the first direction, and the first limit arm is used to pass through the installation portion so as to be in the second direction Limit the optical components above.

On the other hand, the present application also provides a display device, including an optical component, a display panel and the housing component, the optical component is arranged between the second side plate and the bottom plate, and the display The panel is disposed on the side of the second side plate away from the optical component.

Description of drawings

1 is a schematic diagram of an external structure of a display device provided by an embodiment of the present application;

Fig. 2 is a partial cross-sectional schematic view of the display device shown in Fig. 1;

3 is a schematic structural diagram of a housing assembly and an optical assembly in the display device shown in FIG. 1;

4 is a schematic cross-sectional view of the display device shown in FIG. 3 along the line A-A;

FIG. 5 is a schematic structural view of the limiting member in the housing assembly shown in FIG. 3 from a perspective;

6 is a schematic cross-sectional view of a portion of the backlight module in the display device shown in FIG. 3;

7 is a schematic cross-sectional view of a backlight module and a display panel of the display device shown in FIG. 2 being stacked on a bottom plate;

8 is a schematic cross-sectional view of a display panel in the display device shown in FIG. 7;

9 is a schematic cross-sectional view of the limiting member shown in FIG. 5 including a first limiting arm;

Figure 10 is an exploded schematic view of the display device shown in Figure 3;

Fig. 11 is a schematic view of the structure of the optical film shown in Fig. 10 with mounting holes;

Fig. 12 is a schematic cross-sectional view of the first limit arm and the mounting hole shown in Fig. 11;

13 is a schematic cross-sectional view of the display device shown in FIG. 1 provided with a plurality of limiting members;

FIG. 14 is a schematic structural diagram of the cooperation between the housing assembly and the optical assembly in the display device shown in FIG. 1;

15 is a schematic cross-sectional view of the display device shown in FIG. 14 along line B-B;

FIG. 16 is a schematic structural diagram of the limiting member in the housing assembly shown in FIG. 3 from another perspective;

FIG. 17 is a schematic structural diagram of the position-limiting member shown in FIG. 16 with a first opening and a second opening;

18 is a schematic cross-sectional view of the first limiting arm of the limiting member shown in FIG. 17 passing through the optical film;

FIG. 19 is a schematic structural view of the back plate of the housing assembly shown in FIG. 3 provided with a boss;

20 is a schematic cross-sectional view of the display device shown in FIG. 17 along line C-C;

Fig. 21 is a schematic structural diagram of the first side plate of the back plate shown in Fig. 19 with a hollow portion;

Fig. 22 is a schematic structural diagram of the position-limiting member shown in Fig. 19 with a slot;

FIG. 23 is a schematic structural diagram of the hollow portion and the mounting portion arranged opposite to each other as shown in FIG. 21;

FIG. 24 is a schematic structural diagram of the position-limiting member shown in FIG. 19 provided with a second inclined surface;

25 is a schematic cross-sectional view of the housing assembly of the display device shown in FIG. 1 including the middle frame assembly;

FIG. 26 is a schematic cross-sectional view of the middle frame assembly shown in FIG. 25 assembled on the back plate and the limiting member.

Detailed ways

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. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The embodiments listed in this application can be appropriately combined with each other.

As shown in FIG. 1 , FIG. 1 is a schematic structural diagram of a display device 100 provided by an embodiment of the present application. The display device 100 includes, but is not limited to, a display device 100 having a display panel, such as a television, a monitor, a mobile phone, and a car navigator. The display device 100 provided in the present application includes, but is not limited to, a display device with a narrow bezel.

For the convenience of description, the coordinate system shown in Figure 1 is established. The longitudinal direction of the display device 100 is denoted as the X-axis direction. The width direction of the display device 100 is denoted as the Y-axis direction. The thickness direction of the display device 100 is denoted as the Z-axis direction. The arrow points to the positive direction.

As shown in FIG. 2 , the display device 100 includes a housing assembly 1 , a backlight module 2 and a display panel 3 . The housing assembly 1 is used to carry and accommodate the backlight module 2 and the display panel 3 .

Referring to FIG. 2 and FIG. 3 , the housing assembly 1 includes a back plate 10 and a limiting member 20 .

Specifically, please refer to FIG. 2 and FIG. 4 , the back panel 10 includes a bottom panel 101 and a first side panel 102 that are connected to each other. Optionally, the bottom plate 101 and the first side plate 102 are integrally formed. Of course, in other embodiments, the bottom plate 101 and the first side plate 102 may be connected as a whole. For example: welding, bonding, snap connection, etc. The bottom plate 101 extends in the X-axis direction. The first side plate 102 extends in the Z-axis direction. The first side plate 102 can surround the bottom plate 101 . Optionally, the first side plate 102 surrounds the bottom plate 101 to form an inner cavity. The backlight module 2 is at least partially disposed in the inner cavity. In the embodiment of the present application, the bottom plate 101 and the first side plate 102 are integrally formed by bending, and the bending angle between the bottom plate 101 and the first side plate 102 is 90°. However, in the actual production process, there may be errors in the bending angle between the bottom plate 101 and the first side plate 102. Therefore, in this application, the bending angle between the bottom plate 101 and the first side plate 102 includes but is not limited to 90°. Wherein, the material of the back plate 10 includes but is not limited to plastic, metal, ceramic and the like. In the embodiment of the present application, the material of the back plate 10 may be metal, such as aluminum, alloy, sheet metal, stainless steel, and the like.

Referring to FIGS. 3 to 5 , the limiting member 20 is disposed on the first side plate 102 . In the embodiment of the present application, the limiting member 20 is fixed on the first side plate 102 . In other words, after the limiting member 20 and the back plate 10 are assembled, there is no relative movement between the limiting member 20 and the back plate 10. Wherein, the limiting member 20 includes a connected second side plate 201 and a third side plate 202 . Optionally, the second side plate 201 and the third side plate 202 are integrally formed. Of course, in other embodiments, the second side plate 201 and the third side plate 202 may be connected as a whole. For example: welding, bonding, snap connection, etc. The second side plate 201 extends along the X-axis direction and is disposed opposite to the bottom plate 101 along the Z-axis direction. The third side plate 202 extends along the Z-axis direction and is disposed opposite to the first side plate 102 along the X-axis direction. In one embodiment, the third side plate 202 is disposed on the side of the first side plate 102 away from the backlight module 2 . In the embodiment of this application, the second side plate 201 and the third side plate 202 are integrally formed by bending, and the bending angle between the second side plate 201 and the third side plate 202 is 90°. However, in this application, the first The bending angle between the second side plate 201 and the third side plate 202 includes but is not limited to 90°. The material of the limiting member 20 includes, but is not limited to, plastic, metal, ceramic, and the like. In the embodiment of the present application, the material of the limiting member 20 is metal, such as aluminum, alloy, sheet metal, stainless steel, and the like.

Please refer to FIG. 2 and FIG. 6 , the backlight module 2 is disposed between the second side plate 201 and the bottom plate 101 . The backlight module 2 may be an edge-type backlight module 2 , or may be a direct-type backlight module 2 or the like. The backlight module 2 is used to generate light, and the light is output after being controlled by the display panel 3 , and a color image can be presented on the display panel 3 to realize the display function of the display device 100 . The backlight module 2 may include a light source, an optical component 21 and the like. The optical component 21 may include one or more of a reflective plate 22 , a light guide plate 23 and an optical film 24 . In the embodiment of the present application, the optical component 21 includes a reflective plate 22 , a light guide plate 23 and an optical film 24 . The light emitted by the light source is directed to the light guide plate 23 and is reflected to the optical film 24 by the reflection plate 22 , where it is diffused, homogenized and brightened in the optical film 24 and then directed to the display panel 3 . Wherein, the optical film 24 includes, but is not limited to, one or more films such as diffusion film, uniform light film, and brightness enhancement film.

As shown in FIG. 7 , the display panel 3 is disposed on the side of the second side plate 201 away from the optical component 21 . The display panel 3 may be a liquid crystal display panel 3 . Specifically, as shown in FIG. 8 , the display panel 3 includes a thin film transistor array substrate 31 , a color filter substrate 32 and a liquid crystal layer 33 . The thin film transistor array substrate 31 and the color filter substrate 32 are disposed opposite to each other, the outer periphery of the thin film transistor array substrate 31 and the outer periphery of the color filter substrate 32 are encapsulated by a plastic frame to form a cavity, and the liquid crystal layer 33 is encapsulated in the cavity.

As shown in FIG. 9 , in the embodiment of the present application, the limiting member 20 is used to limit the optical film 24 in the optical assembly 21 . The reflection plate 22 and the light guide plate 23 can be fixedly arranged on the bottom plate 101 . Of course, in other embodiments, the limiting member 20 may also be used to limit the reflective plate 22 , the light guide plate 23 and the like in the optical assembly 21 .

The bottom plate 101 is configured to be opposite to the optical film 24 along the first direction. In the embodiment of the present application, the bottom plate 101 and the optical film 24 are disposed opposite to each other along the Z-axis direction. The first side plate 102 is configured to be opposite to the optical assembly 21 along the second direction. In the embodiment of the present application, the first side plate 102 and the optical film 24 are disposed opposite to each other along the X-axis direction. In other words, in the embodiment of the present application, the first direction is the Z-axis direction. The second direction is the X-axis direction. The first direction is perpendicular to the second direction. Of course, in other embodiments, the first direction and the second direction may intersect but not be perpendicular.

9 and 10, the second side plate 201 of the limiting member 20 is pressed against the side of the optical film 24 away from the bottom plate 101, and the second side plate 201 is used for the optical film 24 in the first direction. limit. Wherein, it can be understood that the second side plate 201 of the limiting member 20 is pressed against the side of the optical film 24 away from the bottom plate 101 can be understood as the second side plate 201 directly contacts and is pressed against the side of the optical film 24 away from the bottom plate 101, Alternatively, in the original state, the second side plate 201 is provided with a gap between the optical film 24 . When the optical film 24 is deformed or arched, the second side plate 201 contacts and is pressed against the optical film 24 away from the bottom plate 101 . side. In other words, the use of the second side plate 201 to limit the optical film 24 in the first direction can be understood as the use of the second side plate 201 to avoid the relative movement of the optical film 24 in the first direction, or the second side plate 201 limits the amount of movement of the optical film 24 in the first direction to prevent the optical film 24 from being separated from the limiting member 20 .

A first limiting arm 203 is protruded on the second side plate 201 . The first limiting arm 203 is disposed opposite to the first side plate 102 along the second direction. In other words, the first limiting arm 203 extends toward the bottom plate 101 along the Z-axis direction. The first limiting arm 203 is used for passing through the mounting portion 24a of the optical component 21 to limit the position of the optical film 24 in the second direction. In one embodiment, the first limiting arm 203 passes through the mounting hole 240a of the mounting portion 24a. Optionally, one end of the first limiting arm 203 away from the second side plate 201 is penetrated in the mounting portion 24a, or, one end of the first limiting arm 203 away from the second side plate 201 protrudes out of the mounting portion 24a away from the first end of the mounting portion 24a. One side of the second side plate 201 . Optionally, the first limiting arm 203 abuts on the hole wall of the installation hole 240a along the X-axis direction. By making the first limiting arm 203 abut on the hole wall of the mounting hole 240a, since the limiting member 20 is relatively stationary, the relative movement of the optical film 24 along the X-axis direction can be avoided. Of course, in other embodiments, there may be a gap between the first limiting arm 203 and the hole wall of the mounting hole 240a. In other words, the first limiting arm 203 does not contact or abut the hole wall of the mounting hole 240a. In this embodiment, since the limiting member 20 is relatively stationary, the movement of the optical film 24 is restricted by the first limiting arm 203, so that the optical film 24 can be limited by the matching relationship between the first limiting arm 203 and the mounting hole 240a. The amount of movement of the diaphragm 24 along the X-axis direction is used to avoid light leakage at the offset position of the optical diaphragm 24 when the optical diaphragm 24 moves.

Please refer to FIG. 11 and FIG. 12 , wherein the shape of the opening of the mounting hole 240a may be a circle, a square, a rectangle, a triangle, or the like. The first limiting arm 203 may be a cylindrical arm, a long arm, a square arm, a triangular arm, or the like. In the embodiment of the present application, the opening shape of the mounting hole 240a is a rectangle. The first limiting arm 203 is an elongated arm. The hole wall of the mounting hole 240a includes a first hole wall 241 and a second hole wall 242 oppositely arranged along the X-axis direction, and a third hole wall 243 and a fourth hole wall 244 oppositely arranged along the Y-axis direction. The outer peripheral surface of the first limiting arm 203 includes a first end surface 231 and a second end surface 232 oppositely arranged along the X-axis direction, and a third end surface 233 and a fourth end surface 234 arranged oppositely along the Y-axis direction. Optionally, the first end surface 231 is opposite to or abuts against the first hole wall 241 , the third end surface 233 is opposite or abuts against the third hole wall 243 , and/or the second end surface 232 is opposite or abuts against the second hole wall 242 , The fourth end surface 234 is opposite to or abuts against the fourth hole wall 244 . In this embodiment, in both the X-axis direction and the Y-axis direction, the side surfaces of the first limiting arm 203 are opposite to or abut against the corresponding hole wall of the mounting hole 240a, so that in the X-axis direction and/or the Y-axis direction The optical film 24 is limited in the axial direction. In other words, in this embodiment, the first limiting arm 203 can limit the optical film 24 along the X-axis direction and/or the Y-axis direction.

In the housing assembly 1 provided by the present application, the limiting member 20 is provided on the first side plate 102 of the back plate 10, so that the second side plate 201 of the limiting member 20 is disposed opposite to the bottom plate 101, and the second side plate 201 presses It is suitable for the side of the optical component 21 away from the bottom plate 101, so that the optical component 21 can be limited in the first direction. In other words, the second side plate 201 can reduce or avoid the optical component 21 along the first movement in one direction. By protruding the first limiting arm 203 on the second side plate 201 of the limiting member 20, the first limiting arm 203 is inserted into the mounting portion 24a of the optical component 21, so that the alignment can be aligned in the second direction. The optical assembly 21 is limited, in other words, the first limiting arm 203 can reduce or avoid the movement of the optical assembly 21 in the second direction during use, transportation, and the like. Since the display device 100 provided by the present application has a better position limit for the optical component 21, the overall light leakage is reduced, and the display effect is improved.

Optionally, as shown in FIG. 13 , opposite ends of the optical film 24 are respectively provided with a first mounting portion 24b and a second mounting portion 24c. In the embodiment of the present application, opposite ends of the optical film 24 along the X-axis direction are respectively provided with a first mounting portion 24b and a second mounting portion 24c. Of course, in other embodiments, the first mounting portion 24b and the second mounting portion 24c may be disposed at opposite ends of the optical film 24 along the Y-axis direction. The first mounting portion 24b includes a first mounting hole 240b. The second mounting portion 24c includes a second mounting hole 240c.

The display device 100 includes at least one limiting member 20 . In other words, the number of the limiting members 20 may be one or more. In the embodiment of the present application, at least one limiter 20 includes a first limiter 20a and a second limiter 20b, that is, the number of limiters 20 is two. The first limiting member 20a and the second limiting member 20b are respectively disposed at opposite ends of the first side plate 102 along the X-axis direction. The first limiting arm 203a of the first limiting member 20a passes through the first mounting hole 240b of the first mounting portion 24b. The first limiting arm 203b of the second limiting member 20b passes through the second mounting hole 240c of the second mounting portion 24c. In one embodiment, the side of the first limiting arm 203a of the first limiting member 20a facing the first side plate 102 abuts on the hole wall of the first mounting hole 240b; The side of the position arm 203b facing the first side plate 102 abuts on the hole wall of the second mounting hole 240c.

It can be understood that the first mounting portion 24b and the second mounting portion 24c are respectively provided at opposite ends of the optical film 24, and the first limiting member 20a and the second limiting member 20b are respectively provided to pass through the first mounting portion. In the mounting portion 24b and the second mounting portion 24c, since both ends of the optical film 24 are limited, the optical film 24 can be kept stable and balanced, and the positioning reliability of the optical film 24 is improved.

The following embodiments describe the structures of the display device 100 and the housing assembly 1 provided by the embodiments of the present application by using the first side plate 102 on one side, the optical film 24 and the limiting member 20 , which will not be repeated in the following.

In the embodiment of the present application, as shown in FIG. 14 , the third side plate 202 of the limiting member 20 is disposed on the side of the first side plate 102 away from the first limiting arm 203 . Optionally, the third side plate 202 abuts on the first side plate 102 . In other words, the third side plate 202 is in contact with the surface of the first side plate 102 on the side away from the first limiting arm 203 . By arranging the third side plate 202 and making the third side plate 202 abut against the side of the first side plate 102 away from the first limiting arm 203, the movement of the limiting member 20 along the X-axis direction can be avoided or reduced, that is, The limiting member 20 can be limited along the X-axis direction. Of course, in other embodiments, there may be a small gap between the third side plate 202 and the first side plate 102 to avoid interference between the limiter 20 and the back plate 10 , causing the limiter 20 to interfere with the back plate 10 . Assembly of the board 10 is difficult.

Further, please refer to FIG. 14 and FIG. 15 , a second limiting arm 204 is also protruded on the second side plate 201 . The second limiting arm 204 may be a cylindrical arm, a long arm, a square arm, a triangular arm, or the like. In the embodiment of the present application, the second limiting arm 204 is an elongated arm. The second limiting arm 204 is opposite to the third side plate 202 along the second direction. In other words, the second limiting arm 204 extends toward the bottom plate 101 along the Z-axis direction. Wherein, the second limit arm 204 and the first limit arm 203 may be arranged opposite to each other along the X-axis direction, or may be arranged in a staggered position. In the embodiment of the present application, the second limiting arm 204 and the first limiting arm 203 are disposed in a dislocation along the X-axis direction. Part of the first side plate 102 is sandwiched between the second limiting arm 204 and the third side plate 202 . In other words, along the X-axis direction, the third side plate 202 , part of the first side plate 102 and the second limiting arm 204 are disposed opposite to each other, and the first side plate 102 faces the opposite side of the X-axis and the third side plate 202 In contact or clearance fit, the side of the third side plate 202 facing the positive X-axis is in contact or clearance fit with the second limiting arm 204 . In this embodiment, by disposing the second limiting arm 204 on the second side plate 201 , so that the first side plate 102 is sandwiched between the third side plate 202 and the second limiting arm 204 , the back plate 10 can be realized. By limiting the position with the limiting member 20 along the X-axis direction, the relative movement of the back plate 10 and the limiting member 20 along the X-axis direction can be avoided or reduced. It can be understood that when the limiting member 20 is limited to the backplane 10, the limiting reliability of the optical film 24 by the limiting member 20 is improved, which can reduce the movement of the optical film 24 relative to the backplane 10 along the X-axis direction. , or make the optical film 24 stationary relative to the backplane 10 along the X-axis direction.

In the embodiment of the present application, as shown in FIG. 16 , a part of the second side plate 201 is bent to form the first limiting arm 203 . After the first limiting arm 203 is bent, a first opening 220 is formed on the second side plate 201 . Part of the second side plate 201 is bent to form a second limiting arm 204 , and a second opening 221 is formed on the second side plate 201 after the second limiting arm 204 is bent. In the embodiment of the present application, the second side plate 201 is bent to form the first limit arm 203 and the first opening portion 220 , and the second side plate 201 is bent to form the second limit arm 204 and the second opening portion 221 , it is beneficial to integrally form the limiter 20 to reduce the connection points on the limiter 20 , improve the strength of the limiter 20 , and also reduce the process steps of forming the limiter 20 and improve the production efficiency. Of course, in other embodiments, the first limiting arm 203 and the second limiting arm 204 may be connected to the second side plate 201 by welding or the like.

Optionally, please refer to FIG. 16 and FIG. 17 , the first opening portion 220 is located on the side of the first limiting arm 203 facing the third side plate 202 . The first opening portion 220 is spaced apart from the third side plate 202 . The second opening portion 221 is located on the side of the second limiting arm 204 away from the third side plate 202 . In other words, neither the first opening part 220 nor the second opening part 221 extends to the third side plate 202 . In this embodiment, the first opening portion 220 is spaced from the third side plate 202, and the second opening portion 221 is located on the side of the second limiting arm 204 away from the third side plate 202, so that the second side plate 202 can be The limiting member 20 at the connection between the 201 and the third side plate 202 has high strength, so as to prevent the third side plate 202 and the third side plate 202 from being broken due to insufficient strength.

In the embodiment of the present application, please refer to FIG. 17 and FIG. 18 , the first limiting arm 203 at least partially protrudes from the side of the mounting portion 24a away from the second side plate 201 . The size of the first limiting arm 203 protruding from the mounting portion 24a is greater than or equal to the first predetermined size and less than or equal to the second predetermined size. When the size of the first limiting arm 203 protruding from the mounting portion 24 a is the first predetermined size, the first limiting arm 203 is used to prevent the optical assembly 21 from being detached. When the size of the first limiting arm 203 protruding from the mounting portion 24 a is the second predetermined size, the first limiting arm 203 is used to space the second opening portion 221 from the third side plate 202 . The dimension of the first limiting arm 203 protruding from the mounting portion 24a can be referred to H in FIG. 18 . The size of the first limiting arm 203 protruding from the mounting portion 24a is greater than or equal to the first predetermined size. In other words, the size of the first limiting arm 203 protruding from the mounting portion 24a cannot be too small, so as to avoid local deformation at the limiting position of the optical film 24 due to the mounting hole 240a or the optical film 24 jumping off and causing the limiting position The limitation of the optical film 24 by the member 20 fails. In addition, the small size of the first limiting arm 203 may easily lead to difficulty in forming during production. Wherein, the size of the first limiting arm 203 protruding from the mounting portion 24a is smaller than or equal to the second predetermined size. In other words, the size of the first limiting arm 203 protruding from the mounting portion 24a cannot be too large. When the size of the first limiting arm 203 protruding from the mounting portion 24a is too large, the first opening 220 formed by the first limiting arm 203 on the second side plate 201 can easily extend to the third side plate 202, so that the The strength of the connection between the third side plate 202 and the second side plate 201 is reduced, which affects the overall strength of the limiting member 20 . In addition, when the size of the first limit arm 203 protruding from the mounting portion 24 a is too large, the strength of the first limit arm 203 itself cannot be guaranteed, and the first limit arm 203 is easily formed when the first limit arm 203 is formed. The bending angle between the second side plate 201 and the second side plate 201 is too small, which is easy to cause the first limit arm 203 to be affected by the weight of the optical film 24, so that the first limit arm 203 is deformed, and the installation hole 240a of the optical film 24 is increased. Risk of light leakage due to location.

Further, as shown in FIG. 19 , the first side plate 102 is provided with a clamping portion 120 . The limiting member 20 is provided with an engaging portion 205 . The engaging portion 120 is engaged with the engaging portion 205 . In other words, the back plate 10 is engaged with the limiting member 20 . In this embodiment, by engaging the backing plate 10 with the limiting member 20, the limiting member 20 and the backing plate 10 can be further limited in other directions, for example, along the Z-axis direction and/or along the Y-axis direction. Wherein, the engaging portion 120 may be a hook, a boss, a locking buckle, an elastic buckle, a card slot, or the like. The engaging portion 205 may be a hook, a boss, a locking buckle, an elastic buckle, a card slot, and the like that cooperate with the engaging portion.

The engaging structure of the first side plate 102 and the limiting member 20 in the following embodiment can be combined with the embodiment in which the first side plate 102 is sandwiched between the third side plate 202 and the second limiting arm 204 in the above-mentioned embodiment, Thereby, the position limitation between the limiting member 20 and the back plate 10 along the X-axis direction, the Y-axis direction and the Z-axis direction is realized.

In one embodiment, please refer to FIG. 19 and FIG. 20 , the engaging portion 120 is a boss 1201 . The engaging portion 205 is an engaging slot 250 penetrating through the limiting member 20 . Specifically, the engaging portion 120 is a boss 1201 provided on the surface of the first side plate 102 facing the reverse direction of the X-axis. The engaging portion 205 is disposed on the third side plate 202 . The groove wall of the card groove 250 is in contact with the surface of the boss 1201 . The boss 1201 may be a cylindrical boss, a rectangular boss, a stepped boss, or the like. The slot 250 is matched with the boss 1201 . Of course, in other embodiments, the engaging portion 120 may be a slot provided on the first side plate 102 , and the engaging portion 205 may be a boss provided on the limiting member 20 .

20 to 22, the surface of the boss 1201 includes a bottom surface 120a and a first side surface 120b adjacent to the first bottom surface 120a. The bottom surface 120 a of the boss 1201 faces the end of the third side plate 202 away from the second side plate 201 . In other words, the bottom surface 120a is reversed toward the Z-axis. The first side surface 120b is directed toward the positive direction of the Y axis or the reverse direction of the Y axis. The slot wall of the card slot 250 includes a first side wall 250a and a second side wall 250b arranged adjacently. The first side wall 250a abuts against the bottom surface 120a of the boss 1201, or the first side wall 250a and the bottom surface 120a of the boss 1201 are disposed opposite to each other along the Z-axis direction. The second side wall 250b is in contact with the side surface of the boss 1201, or the second side wall 250b and the side surface of the boss 1201 are disposed opposite to each other along the Y-axis direction. Therefore, under the cooperation of the first side wall 250 a and the bottom surface 120 a of the boss 1201 , the position limit between the back plate 10 and the limiting member 20 along the Z-axis direction can be realized. The position limit between the back plate 10 and the limiting member 20 along the Y-axis direction can be realized under the cooperation of the back plate 10 .

By arranging the bosses 1201 on the surface of the first side plate 102, and arranging the card grooves 250 at the corresponding positions of the third side plate 202, the matching between the card grooves 250 and the bosses 1201 can realize the connection between the back plate 10 and the limiting member 20. Limits along the Z-axis and along the Y-axis. In other words, in this embodiment, the movement of the limiting member 20 relative to the backplane 10 along the Z-axis direction and the Y-axis direction can be reduced, so that the backplane 10 and the limiting member 20 are moved along the Z-axis direction and along the Y-axis direction between the backplane 10 and the limiting member 20 . The direction is relatively stationary, so that the optical film 24 is stationary relative to the back plate 10 in the direction along the Z axis and in the direction along the Y axis.

In one embodiment, please refer to FIG. 20 and FIG. 21 , the first side plate 102 is provided with a groove 122 . The opening of the groove 122 faces the second side plate 201 . The groove 122 penetrates the first side plate 102 along the X-axis direction. One end of the boss 1201 is disposed in the groove 122 , and the other end of the boss 1201 protrudes from the side of the first side plate 102 away from the first limiting arm 203 . In the embodiment of the present application, by arranging one end of the boss 1201 in the groove 122 on the first side plate 102 , the extension size of the boss 1201 can be reduced.

In one embodiment, please refer to FIGS. 20 to 22 , the card slot 250 includes a first through hole 251 penetrating the second side plate 201 and a second through hole 252 penetrating the third side plate 202 . The first through hole 251 communicates with the second through hole 252 . The bosses 1201 are located in the first through holes 251 and the second through holes 252 . In this embodiment, the hole wall of the second through hole 252 abuts against the bottom surface 120 a of the boss 1201 and the first side surface 120 b of the boss 1201 , or a part of the hole wall of the second through hole 252 is along the bottom surface 120 a of the boss 1201 . The Z-axis direction is opposite to each other, and another part of the hole wall of the second through hole 252 is opposite to the side surface of the boss 1201 along the Y-axis direction.

By making the card slot 250 include the first through hole 251 penetrating the second side plate 201 , the first through hole 251 forms a visible area, which can facilitate the assembly of the back plate 10 and the limiting member 20 to the locking member 20 . The grooves 250 are aligned with the bosses 1201 on the backplane 10 , thereby improving the assembly efficiency of the limiting member 20 and the backplane 10 .

Further, please refer to FIG. 20 to FIG. 22 , the surface of the boss 1201 further includes a second side surface 120c adjacent to the bottom surface 120a. The second side surface 120c of the boss 1201 faces the side away from the first side plate 102, and the second side surface 120c of the boss 1201 includes a first inclined surface 120d. When the limiting member 20 and the back plate 10 are assembled, the limiting member 20 can be assembled to the first side plate 102 along the first inclined surface 120d. The first inclined surface 120d has a guiding function in the process of assembling the limiting member 20 and the back plate 10, so that the limiting member 20 can be assembled on the first side plate 102 accurately and efficiently.

Optionally, the first inclined surface 120d is in a convex arc shape. One end of the third side plate 202 away from the second side plate 201 is provided with an arc-shaped convex portion 206 , and the arc-shaped convex portion 206 is fitted in the process of assembling the limiting member 20 to the first side plate 102 along the first inclined surface 120 d. The first inclined surface 120d slides.

By making the first inclined surface 120d in an outwardly convex arc shape, the end of the third side plate 202 away from the second side plate 201 is provided with an arc-shaped convex portion 206 . The arc-shaped protrusions 206 on the three side plates 202 slide along the first inclined surface 120d of the outwardly convex arc shape. The sliding friction force on the inclined surface 120d is small, which can avoid the interference between the third side plate 202 and the boss 1201 on the first side plate 102 during the assembly process.

In addition, please refer to FIG. 21 and FIG. 23 , the first side plate 102 is further provided with a hollow portion 123 . The hollow portion 123 is used to be opposite to the mounting portion 24a. The first side plate 102 between the hollow portion 123 and the boss 1201 is sandwiched between the second limiting arm 204 and the third side plate 202 . In other words, in the embodiment of the present application, the boss 1201 , the second limiting arm 204 and the hollow portion 123 are oppositely disposed along the Y-axis direction. By disposing the hollow portion 123 on the first side plate 102 , the interference between the mounting portion 24 a of the optical film 24 and the back plate 10 can be avoided. In addition, the hollow portion 123 can be used to accommodate the mounting portion 24a of the optical film 24, so that the area of the optical film 24 used for diffusion, uniform light, and brightness enhancement is close to the backplane 10, thereby reducing the frame size of the display device 100. The display device 100 with a narrow bezel.

Further, as shown in FIG. 24 , a second inclined surface 207 is provided between the side of the second side plate 201 facing away from the bottom plate 101 and the side of the third side plate 202 facing away from the first limiting arm 203 .

Referring to FIGS. 24 and 25 , the housing assembly 1 further includes a middle frame assembly 30 . The middle frame assembly 30 includes a middle frame 301 , a first foam 302 disposed on one side of the middle frame 301 , and a second foam 303 disposed on the other side of the middle frame 301 .

Specifically, please refer to FIG. 24 to FIG. 26 , the middle frame 301 includes a first carrier board 310 and a second carrier board 311 which are connected to each other. The first carrier plate 310 is disposed on the side of the second side plate 201 away from the bottom plate 101 . The second carrier plate 311 is disposed on the side of the bottom plate 101 away from the second side plate 201 . The first carrier board 310 is used for carrying the display panel 3 . The second carrier board 311 is used for carrying the backplane 10 and the optical component 21 . The first foam 302 is disposed on the side of the first carrier plate 310 away from the second side plate 201 , and the first foam 302 is used to buffer the force between the middle frame 301 and the display panel 3 . The second foam 303 is disposed on the side of the first carrier plate 310 facing the second side plate 201 . The second foam 303 is used to reduce the force between the middle frame 301 and the limiting member 20 , and reduce the frictional force between the middle frame 301 and the limiting member 20 when the middle frame 301 is assembled. The first foam 302 abuts between the first carrier plate 310 and the second side plate 201 . Optionally, in the region where the limiting member 20 is not provided, the first foam 302 is in contact with the optical film 24 .

The middle frame assembly 30 is assembled on the second side plate 201 along the second inclined surface 207 . It can be understood that the second inclined surface 207 has a guiding function in the process of assembling the middle frame 301 with the back plate 10 and the limiting member 20 , so that the middle frame 301 can be assembled on the back plate 10 and the limiting member 20 accurately and efficiently. superior. Optionally, the second inclined surface 207 is in a convex arc shape. It can be understood that since the second inclined surface 207 is in the shape of an outwardly convex arc, during the assembly process of the middle frame 301, the contact area between the middle frame 301 and the second inclined surface 207 is small, which can avoid the middle frame 301 and the limiter 20. Or the second side plate 201 interferes, and the assembly efficiency of the middle frame 301 is improved.

In the present application, the assembly steps of the display device 100 may be as follows: assembling the backplane 10 and the limiting member 20 , so that the limiting member 20 slides under the guidance of the boss 1201 on the backplane 10 until the slot on the limiting member 20 is reached. The 250 cooperates with the bosses 1201 on the back plate 10 , so that the first side plate 102 of the back plate 10 is sandwiched between the third side plate 202 of the limiting member 20 and the second limiting arm 204 . The backlight module 2 is assembled so that the first limiting arm 203 on the limiting member 20 is inserted into the mounting portion 24 a of the optical film 24 . The middle frame 301 is assembled, so that the middle frame 301 slides under the guidance of the second inclined surface 207 on the limiting member 20 , and is assembled and matched with the back plate 10 and the limiting member 20 .

The above are some embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also regarded as the present invention. The scope of protection applied for.

Claims

A casing assembly for limiting an optical assembly, characterized in that a mounting portion is provided at one end of the optical assembly, and the casing assembly comprises:

A backplane, the backplane includes a connected bottom plate and a first side plate, the bottom plate is configured to be opposite to the optical assembly along a first direction, and the first side plate is configured to be opposite to the optical assembly along a second direction opposite directions, the first direction intersects the second direction; and

At least one limiter, the limiter is arranged on the first side plate, the limiter includes a second side plate, the second side plate is opposite to the bottom plate, and the second side plate is The side plate is pressed against the side of the optical component away from the bottom plate, and the second side plate is used to limit the position of the optical component in the first direction; the second side plate is protruded There is a first limit arm, the first limit arm extends toward the bottom plate along the first direction, and the first limit arm is used to pass through the installation portion so as to be in the second direction Limit the optical components above.
The housing assembly according to claim 1, wherein the limiting member further comprises a third side plate connected to the second side plate, and the third side plate is disposed along the second direction on the The first side plate is away from the side of the first limiting arm, and the third side plate abuts on the first side plate.
The housing assembly according to claim 2, wherein a second limiting arm is further protruded from the second side plate, and the second limiting arm and the third side plate are along the first The two directions are arranged opposite to each other, and part of the first side plate is sandwiched between the second limiting arm and the third side plate.
The housing assembly according to claim 3, wherein a part of the second side plate is bent to form the first limit arm, and the first limit arm is bent on the second side A first opening is formed on the plate; another part of the second side plate is bent to form the second limit arm, and a second opening is formed on the second side plate after the second limit arm is bent department.
The housing assembly according to claim 4, wherein the first opening portion is located on a side of the first limiting arm facing the third side plate, and the first opening portion is connected to the The third side plates are spaced apart, and the second opening is located on a side of the second limiting arm away from the third side plate.
The housing assembly according to claim 5, wherein the first limiting arm at least partially protrudes from a side of the mounting portion away from the second side plate, and the first limiting arm extends Since the size of the mounting portion is greater than or equal to the first preset size and less than or equal to the second preset size, when the size of the first limiting arm protruding from the mounting portion is the first preset size , the first limit arm is used to prevent the optical assembly from disengaging, and when the size of the first limit arm protruding from the mounting portion is the second preset size, the first limit arm is used for In order to make the said 1st opening part and the said 3rd side plate spaced apart.
The housing assembly according to any one of claims 3 to 6, wherein the first side plate is provided with a snap portion, the limiter is provided with a snap portion, and the snap portion is provided with a snap portion. engaging with the engaging portion.
The housing assembly according to claim 7, wherein the engaging portion is a boss, the engaging portion is a slot passing through the limiting member, and the slot wall of the slot abuts against the the surface of the boss.
The housing assembly according to claim 8, wherein a groove is formed on the first side plate, the groove penetrates the first side plate, and one end of the boss is formed in the groove In the groove, the other end of the boss protrudes from the side of the first side plate facing away from the optical component.
The housing assembly according to claim 9, wherein the card slot comprises a first through hole penetrating the second side plate and a second through hole penetrating the third side plate, the first through hole The through hole is communicated with the second through hole, and the boss is engaged in the first through hole and the second through hole.
The housing assembly according to claim 10, wherein the surface of the boss includes a bottom surface, and the bottom surface faces an end of the third side plate away from the second side plate, and the second through hole The wall of the hole is in contact with the bottom surface of the boss.
The housing assembly according to claim 11, wherein the surface of the boss further comprises a side surface adjacent to the bottom surface, the side surface facing away from the first side plate, the side surface It includes a first inclined surface, and the limiting member is assembled to the first side plate along the first inclined surface.
The housing assembly according to claim 12, wherein the first inclined surface is in a convex arc shape.
The housing assembly according to claim 13, wherein the end of the third side plate away from the second side plate is provided with an arc-shaped convex portion, and the limiting member is located along the first inclined surface. During the process of assembling to the first side plate, the arc-shaped convex portion slides against the first inclined surface.
The housing assembly according to any one of claims 8 to 14, wherein a hollow portion is further provided on the first side plate, the hollow portion is used to be disposed opposite to the mounting portion, and the hollow portion is provided with a hollow portion. The first side plate between the portion and the boss is sandwiched between the second limiting arm and the third side plate.
The housing assembly according to any one of claims 2 to 6 and 8 to 14, wherein a side of the second side plate facing away from the bottom plate and a side of the third side plate facing away from the optical assembly A second inclined surface is provided between one side, and the housing assembly further includes a middle frame assembly, and the middle frame assembly is assembled on the second side plate along the second inclined surface.
The housing assembly according to claim 16, wherein the second inclined surface is in a convex arc shape.
The housing assembly according to claim 17, wherein the middle frame assembly comprises a middle frame and a foam provided on the middle frame, and the middle frame comprises a first bearing plate and a second bearing plate connected to each other board, the first bearing board is arranged on the side of the second side plate away from the bottom plate, the second bearing plate is arranged on the side of the bottom plate away from the second side plate, the first The carrier board is used for carrying the display panel, the second carrier board is used for carrying the backplane and the optical component, and the foam is abutted between the first carrier board and the second side board.
A display device, characterized by comprising an optical component, a display panel and the housing component according to any one of claims 1 to 18, wherein the optical component is arranged between the second side plate and the bottom plate , the display panel is arranged on the side of the second side plate away from the optical component.
The display device according to claim 19, wherein a side of the first limiting arm facing the first side plate abuts on the mounting portion.