WO2022142576A1

WO2022142576A1 - Middle frame and display device

Info

Publication number: WO2022142576A1
Application number: PCT/CN2021/123079
Authority: WO
Inventors: 胡进
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-12-31
Filing date: 2021-10-11
Publication date: 2022-07-07
Also published as: CN112669703A; CN112669703B

Abstract

A middle frame (100) and a display device (20). The display device (20) comprises the middle frame (100). The middle frame (100) comprises a frame (110) and an accommodation cavity (120) formed by surrounding the frame (110). The frame (110) has an inner surface (111) located in the accommodation cavity (120) and an outer surface (113) disposed opposite to the inner surface (111). The inner surface (111) of the middle frame (100) is provided with a light absorption layer for absorbing light. The light absorption layer can absorb light irradiated to the inner surface (111) of the frame (110), so as to reduce the brightness of an edge region of a display region of the display device (20).

Description

Middle frame and display device

This application claims the priority of the Chinese patent application with the application number 202011632468.4 and the invention title "Middle Frame and Display Device" filed with the China Patent Office on December 31, 2020, the entire contents of which are incorporated herein by reference.

technical field

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

Background technique

With the development of electronic technology, display devices such as smart phones are becoming more and more intelligent. The display device can display pictures through its display screen.

The display device may include a carrying structure and an optical assembly. When the display device is displaying a picture, the light source emitted by the optical assembly will converge to the edge of the carrying structure, resulting in bright lines appearing in the edge region of the display area of the display device, thereby affecting the The display effect of the display device.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a middle frame and a display device, which can reduce bright edges in an edge area of a display area of the display device.

An embodiment of the present application provides a middle frame, the middle frame includes a frame and a receiving cavity surrounded by the frame, and the frame has an inner surface located in the receiving cavity and an inner surface disposed opposite to the inner surface. On the outer surface, the inner surface of the middle frame is provided with a light absorbing layer for absorbing light.

Embodiments of the present application provide a display device, including:

The middle frame is the middle frame described in the above application embodiment;

a display module, arranged in the first receiving cavity and arranged on the partition wall;

a backboard, disposed in the second receiving cavity, the backboard includes a light source part, a bent part bent from the light source part toward the display module, and fixedly connected with the bent part the connecting part, the light source part, the connecting part and the bending part together form a third receiving cavity;

an optical component assembly, disposed in the second receiving cavity, and disposed on the connecting portion of the support portion, and the optical component component and the display module are located on both sides of the partition wall;

The light source assembly is disposed in the second receiving cavity and is disposed on the side of the light source part facing the optical component assembly.

Embodiments of the present application provide a display device, including:

The middle frame includes a first wall, a second wall and a partition wall, the first wall and the second wall are arranged along the thickness direction of the middle frame, and the partition wall is connected to the first wall and the partition wall. the inner surface of the second wall, such that the first wall surrounds to form a first receiving cavity and the second wall surrounds to form a second receiving cavity;

an optical component assembly, disposed in the second receiving cavity, and disposed on the connecting portion, the optical component component and the display module are located on both sides of the partition wall;

A support body includes a first support part, a second support part and a third support part, the first support part and the second support part are bent and arranged, and the third support part and the second support part are bent The bending direction of the third support part and the second support part is the same as the bending direction of the first support part and the second support part. The third support part is disposed on the light source part, the third support part is located in the third receiving cavity, the second support part, the connection part, and the optical component assembly are stacked in sequence. The first support portion is located outside the third storage cavity, and a light absorption structure for light absorption is provided on the side of the first support portion away from the second support portion; and

Description of drawings

FIG. 1 is a schematic diagram of a first partial structure of a display device provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of an exploded structure of the display device shown in FIG. 1 .

FIG. 3 is a schematic diagram of a partial structure of a frame of the display device shown in FIG. 2 .

FIG. 4 is an enlarged schematic structural diagram of part A of the display device shown in FIG. 1 .

FIG. 5 is a schematic diagram of a second partial structure of a display device according to an embodiment of the present application.

FIG. 6 is a schematic structural diagram of part B of the display device shown in FIG. 5 .

FIG. 7 is a schematic structural diagram of a support body in the display device shown in FIG. 2 .

FIG. 8 is a partial structural schematic diagram of the first support portion in the support body shown in FIG. 7 .

FIG. 9 is a partial structural schematic diagram of the first support portion in the support body shown in FIG. 8 .

FIG. 10 is a schematic diagram of the matching structure of the backplane and the support body in the display device shown in FIG. 2 .

FIG. 11 is a schematic diagram of a first partial structure of the backplane and the support body shown in FIG. 10 .

FIG. 12 is a schematic diagram of a second partial structure of the backplane and the support body shown in FIG. 10 .

FIG. 13 is a schematic diagram of the matching structure of the middle frame, the back panel and the support body in the display device shown in FIG. 2 .

Detailed ways

An embodiment of the present application provides a middle frame, wherein the middle frame includes a frame and a receiving cavity surrounded by the frame, and the frame has an inner surface located in the receiving cavity and facing away from the inner surface The inner surface of the middle frame is provided with a light absorbing layer for absorbing light. In the embodiments of the present application, a light absorbing layer is provided on the inner surface of the frame of the middle frame, and the light absorbing layer can absorb the light irradiated to the inner surface of the frame, so as to reduce the bright edge of the edge area of the display area of the display device.

In an optional embodiment of the present application, the frame is made of a metal material, and the light absorbing layer includes one or more oxide film layers formed on the inner surface of the frame by an anodic oxidation process.

In an optional embodiment of the present application, the frame is made of a metal material, and the light absorbing layer includes one or more electroplating film layers formed on the inner surface of the frame by an electroplating process.

In an optional embodiment of the present application, the frame is made of a metal material, and the light-absorbing layer includes one or more paint film layers formed on the inner surface of the frame by a painting process

In an optional embodiment of the present application, the frame includes a first wall, a second wall and a partition wall, and the first wall and the second wall are arranged along the thickness direction of the middle frame and are fixedly connected, The partition wall is connected to the inner surfaces of the first wall and the second wall to partition the receiving cavity into a first receiving cavity and a second receiving cavity.

In an optional embodiment of the present application, the inner surface of the second wall is provided with a plurality of clips, and the clips include a first clip wall connected to the inner surface of the second wall and a first clip connected to the inner surface of the second wall. The first clamping wall is mutually bent and the second clamping wall, the first clamping wall, the second clamping wall and the inner surface of the second wall together form a clamping groove.

In an optional embodiment of the present application, a side of the partition wall away from the second storage cavity is provided with a strip-shaped groove, and the width of the strip-shaped groove gradually decreases from its opening to its bottom.

Embodiments of the present application also provide a display device, including:

In an optional embodiment of the present application, the display device further includes:

A support body includes a first support part, a second support part and a third support part, the first support part and the second support part are bent and arranged, and the third support part and the second support part are bent The bending direction of the third support part and the second support part is the same as the bending direction of the first support part and the second support part. The third support part is disposed on the light source part, the third support part is located in the third receiving cavity, the second support part, the connection part, and the optical component assembly are stacked in sequence. The first support portion is located outside the third storage cavity, and a light absorption structure for light absorption is provided on the side of the first support portion away from the second support portion.

In an optional embodiment of the present application, the light absorbing structure includes a plurality of bumps spaced apart from each other.

In an optional embodiment of the present application, the bumps are formed by printing or spraying.

In an optional embodiment of the present application, the side of the bending portion away from the frame may be provided with one or more hooks, and the side of the bending portion close to the frame may be provided with one or more clamping slots ; The support body is provided with one or more first limit grooves and one or more limit parts, one of the first limit grooves can cooperate with one of the hooks, and the limit parts can cooperate with each other. The card slots cooperate with each other.

In an optional embodiment of the present application, the frame is made of metal material, and the support body is made of plastic material.

In an optional embodiment of the present application, the back plate is provided with a limiting slot, the support body is provided with a second limiting slot, and the limiting slot and the second limiting slot are at the same time with the frame of the frame. The buckles cooperate with each other to achieve mutual positioning of the middle frame and the support body.

In an optional embodiment of the present application, the optical component assembly includes an upper diaphragm, a diffuser plate and a lower diaphragm that are stacked in sequence, the upper diaphragm is disposed close to the display module, and the lower diaphragm located close to the backplane.

In an optional embodiment of the present application, the size of the upper diaphragm is larger than the size of the lower diaphragm.

In an optional embodiment of the present application, an adhesive tape is provided on the side of the lower diaphragm close to the backplane, and the lower diaphragm is bonded to the connecting portion of the backplane through the adhesive tape. Made of materials with optical properties.

In an optional embodiment of the present application, the color of the side of the partition wall close to the lower diaphragm is set to be yellow.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

An embodiment of the present application provides a display device. As shown in FIGS. 1 and 2 , FIG. 1 is a schematic diagram of a first partial structure of the display device provided by the embodiment of the present application, and FIG. 2 is an exploded structure of the display device shown in FIG. 1 . Schematic. The display device 20 may include a middle frame 100 , a display module 200 , a backplane 300 , an optical component assembly 400 , a light source assembly 500 and a support body 600 .

The middle frame 100 is used to form the outer contour of the display device 20 . The middle frame 100 may have a regular shape, such as a rectangular parallelepiped structure and a rounded rectangular structure, and the middle frame 100 may also have an irregular shape. The midframe 100 may be formed from plastic, glass, ceramic, fiber composites, metals (eg, stainless steel, aluminum, etc.), other suitable materials, or a combination of any two or more of these materials. The midframe 100 may be integrally formed such as may be machined or molded as a single structure, or may be formed using a combination of multiple structures (eg, an inner frame structure forms one or more structures of an outer housing surface, etc.).

The middle frame 100 may include a frame 110 and a receiving cavity 120 surrounded by the frame 110 , and the receiving cavity 120 may be used to house components of the display device 20 , such as the display module 200 , the backplane 300 , the optical component assembly 400 , and the light source assembly 500, a support body 600, or other devices. The frame 110 has an inner surface 111 located in the receiving cavity 120 and an outer surface 113 disposed opposite to the inner surface 111 . It can be understood that the inner surface 111 is a side that is invisible when viewed from the outside of the middle frame 100 , and the outer surface 113 is a side that is visible when viewed from the outside of the middle frame 100 .

In practical applications, when the display device 20 displays a picture, the optical component 400 can spread the light emitted by the light source component 500 , and when the optical component 400 transmits the light, the light will converge on the edge of the display device 20 , that is, on the edge of the display device 20 . The edge of the display area of the display device 20 causes bright lines or bright edges to appear at the edge of the display area of the display device 20 , which affects the overall display effect of the display device 20 .

Starting from the problems existing in practical application, the embodiment of the present application is provided with a light-absorbing layer (not shown in the figure) on the inner surface 111 , and the light-absorbing layer can absorb the light irradiated on the inner surface 111 to reduce the damage of the display device 20 . Displays the bright edges of the edge areas of the area. It can be understood that, when the optical component assembly 400 can transmit the light emitted by the light source assembly 500 to the inner surface 111, the light absorbing layer located on the inner surface 111 can absorb the light transmitted to the inner surface 111 of the frame 110, so as to solve the problem as described above. The edge of the display area of the display device 20 has a problem of bright lines or bright edges.

In the embodiment of the present application, the frame 110 may be made of metal material, and the inner surface 111 of the frame 110 may be processed by an anodization process, so that one or more oxide film layers may be formed on the inner surface 111 of the frame 110 . Or multiple oxide film layers can be used as light absorbing layers. It can be understood that, the light absorption layer may include one or more oxide film layers formed on the inner surface 111 of the frame 110 by an anodization process.

It should be noted that the method of forming the light absorbing layer is not limited to this. For example, the frame 110 may be made of a metal material, and the light absorbing layer may also include one or more electroplating layers formed on the inner surface 111 of the frame 110 by an electroplating process. Alternatively, the light-absorbing layer may also include one or more paint film layers formed on the inner surface 111 of the frame 110 by a painting process, or the light-absorbing layer may also be formed by other molding methods.

As shown in FIG. 2 and FIG. 3 , FIG. 3 is a partial structural schematic diagram of the frame of the display device shown in FIG. 2 . The frame 110 may include a first wall 112 , a second wall 114 and a partition wall 116 , the first wall 112 and the second wall 114 are arranged and fixedly connected along the thickness direction of the middle frame 100 , and the partition wall 116 is connected to the first wall 112 and the second wall 114 . An inner surface of the second wall 114 to space the receiving cavity 120 into a first receiving cavity 122 and a second receiving cavity 124 , which can accommodate different components of the display device 20 .

For example, with reference to FIGS. 2 to 4 , FIG. 4 is an enlarged schematic structural diagram of part A of the display device shown in FIG. 1 , the display module 200 is arranged in the first receiving cavity 122 , and the display module 200 is arranged in the partition wall 116 on. It can be understood that the display module 200 can be accommodated in the first receiving cavity 122, and the partition wall 116 can support the display module 200, which can be bonded to the non-display surface of the display module 200 through glue. For example, the side of the partition wall 116 away from the second storage cavity 124 is provided with a strip-shaped groove 115 , or the side of the partition wall 116 close to the display module 200 is provided with a strip-shaped groove 115 , and the strip-shaped groove 115 can be used for filling glue. After solidification, the display module 200 can be fixedly connected to the partition wall 116 .

The strip-shaped groove 115 may be of regular shape, for example, the width of the strip-shaped groove 115 gradually decreases from its opening to the size of its bottom, that is, the shape of the strip-shaped groove 115 may be roughly “V”. Of course, in other embodiments, the width of the strip-shaped groove 115 can also be a constant value, for example, the strip-shaped groove 115 can also be a rectangular groove.

In the embodiment of the present application, the backplane 300 , the optical component assembly 400 , the light source assembly 500 and the support body 600 may all be accommodated in the second receiving cavity 124 . The back plate 300 can support the light source assembly 500 , the optical component assembly 400 and the support body 600 .

Please continue to refer to FIG. 2 , FIG. 5 , and FIG. 6 . FIG. 5 is a schematic structural diagram of a second part of the display device according to an embodiment of the present application, and FIG. 6 is a schematic structural diagram of part B of the display device shown in FIG. 5 . The middle frame 100 may further include a plurality of clips 130, the clips 130 are disposed on the inner surface of the second wall 114, and one clip 130 may include a first clip wall 132 and a second clip wall 134, the first clip wall 132 and the The inner surface of the second wall 114 is connected and extends toward the interior of the storage cavity 120 . The second clamping wall 134 and the first clamping wall 132 are connected to each other by bending, and the bending direction may be from the first storage cavity 122 to the second storage chamber. The cavity 124 , that is, the second clamping wall 134 extends toward the second receiving cavity 124 . The first clamping wall 132 , the second clamping wall 134 and the inner surface of the second wall 114 together form a clamping groove 136 . The first clamping wall 132 can support the optical component 400 , and the clamping slot 136 can limit the back plate 300 and the support body 600 to confine a part of the back plate 300 and a part of the supporting body 600 in the clamping slot 136 .

As shown in FIG. 7 , FIG. 7 is a schematic diagram of the structure of the back panel in the display device shown in FIG. 2 . The back panel 300 may include a light source part 310 , a bending part 320 and a connecting part 330 , and the bending part 320 starts from the light source part 310 . The connecting portion 330 is fixedly connected to the bending portion 320, and the connecting portion 330 is bent from the frame 110 toward the receiving cavity 120. The light source portion 310, the bending portion 320 and the connecting portion 330 are connected together. A third storage cavity 340 is formed around it. The third receiving cavity 340 may be used to receive a part of the support body 600 .

For example, with reference to FIGS. 6 to 8 , FIG. 8 is a schematic structural diagram of the support body in the display device shown in FIG. 2 , the support body 600 may include a first support portion 610 , a second support portion 620 and a third support portion 630 . The first support portion 610 and the second support portion 620 are bent and arranged, the third support portion 630 and the second support portion 620 are bent and arranged, and the bending direction of the third support portion 630 and the second support portion 620 is the same as that of the first support portion. The bending directions of the part 610 and the second supporting part 620 are the same. For example, the third supporting part 630 is bent relative to the second supporting part 620 from the direction of the display module 200 toward the backplane 300, and the first supporting part 610 is also self-displaying The module 200 is bent relative to the second support portion 620 in the direction toward the back plate 300 .

It can be understood that the second support portion 620 may have two opposite outer edges, the first support portion 610 is bent and extended from one of the outer edges toward the direction close to the back plate 300 , and the third support portion 630 is extended from the other outer edge Bend and extend toward the back panel.

It should be noted that the same bending direction in the embodiment of the present application means that the overall direction is the same, but the specific bending angle may be the same or different, for example, between the third support portion 630 and the second support portion 620 The formed bending angle may be 90 degrees, that is, the two are perpendicular to each other; and the bending angle formed between the first support portion 610 and the second support portion 620 may be 90 degrees or greater than 90 degrees, such as the first A support portion 610 may be inclined from the inner surface of the frame 110 toward the inside of the second receiving cavity 124 .

The third support portion 630 is located in the third storage cavity 340 , and the second support portion 620 , the connection portion 330 and the optical component 400 are stacked in sequence. The first support portion 610 is located outside the third receiving cavity 340 .

Referring to FIG. 6 and FIG. 9 , FIG. 9 is a partial structural schematic diagram of the first support portion in the support body shown in FIG. 8 . In addition, a light absorbing structure 640 for absorbing light is disposed on a surface of the first supporting portion 610 away from the second supporting portion 620 . The light absorbing structure 640 can absorb the light irradiated to the side of the first support portion 610 away from the second support portion 620 , so as to further reduce the bright edge of the edge region of the display area of the display device 20 . It can be understood that, when the optical component 400 can transmit the light emitted by the light source assembly 500 to the side of the first support portion 610 away from the second support portion 620 , it is located on the side of the first support portion 610 away from the second support portion 620 . The light absorbing structure 640 can absorb the light propagating to the side of the first support part 610 away from the second support part 620 , thereby solving the problem of bright lines or bright edges at the edge of the display area of the display device 20 as described above.

The light absorbing structure 640 includes a plurality of bumps spaced apart from each other, and the bumps are point-like structures formed by protruding from the side of the first support portion 610 away from the second support portion 620 toward the second receiving cavity 124 . The plurality of bumps may be formed by printing or spraying on the side of the first support portion 610 away from the second support portion 620 .

In this embodiment of the present application, the back plate 300 and the support body 600 may be assembled together in a sliding manner. Referring to FIG. 6 to FIG. 10 , FIG. 10 is a schematic diagram of the matching structure of the backplane and the support body in the display device shown in FIG. 2 . One or more hooks 322 may be provided on the side of the bent portion 320 of the back panel 300 away from the frame 110 , and one or more slots 324 may be provided on the side of the bent portion 320 close to the frame 110 . The support body 600 may be provided with one or more first limiting grooves 650 and one or more limiting portions 660 , one first limiting groove 650 may cooperate with one hook 322 , and the limiting portion 662 may be matched with the locking slot 660 . 324 cooperate with each other, so as to realize the mutual limitation of the back plate 300 and the support body 600 .

During installation, the support body 600 can be slidably inserted into the third receiving cavity 340 , so that the hook 322 is locked into the first limiting slot 650 and the limiting portion 660 is locked into the locking slot 324 . In order to further understand the matching relationship between the hook 322 and the first limiting groove 650, please refer to FIG. 11 and FIG. 12. FIG. 11 is a schematic diagram of the first partial structure of the backplane and the support body shown in FIG. 10, and FIG. 12 is FIG. 10. A schematic diagram of the second partial structure of the backplane and the support body is shown. When the support body 600 is slidably inserted into the third receiving cavity 340 , the hook 322 can be snapped into the first limiting slot 650 , and then slide gradually until the hook 322 is in contact with the groove wall of the first limiting slot 650 . The hook 322 can no longer slide under the restriction of the groove wall of the first limiting groove 650 . At this time, the sliding assembly of the support body 600 and the back plate 300 can be completed, so that the back plate 300 and the support body 600 are tightly assembled.

In the embodiment of the present application, the frame 110 may be made of a metal material, and the support body 600 may be made of a plastic material. Of course, in other embodiments, the support body 600 may also be made of other materials, such as metal or other non-metallic materials.

As shown in FIG. 7 , FIG. 8 and FIG. 13 , FIG. 13 is a schematic diagram of the matching structure of the middle frame, the back plate and the support body in the display device shown in FIG. 2 . The back plate 300 may also be provided with a limiting slot 350, and the support body 600 is further provided with a second limiting slot 670. The limiting slot 350 and the second limiting slot 670 may cooperate with the buckle 130 of the frame 110 at the same time to realize the centering frame 100 and the support body 600 are mutually limited. Wherein, a part of the first clamping wall 132 of the buckle 130 passes through the limiting groove 350 and the second limiting groove 670 at the same time, and the second clamping wall 134 is located on the first support portion 610 , the second support portion 620 and the third support portion 630 In the limiting space formed by surrounding each other, the groove wall of the second limiting groove 670 or the first supporting portion 610 and the third supporting portion 630 can limit the movement of the frame 110 in the direction from the frame 110 to the receiving cavity 120 . The connection portion 330 of the backplane 300 can restrict the movement of the frame 110 in the thickness direction of the display device 200 . It can be understood that, the cooperation of the back panel 300 and the support body 600 can prevent the frame 110 from moving in the direction from the frame 110 to the receiving cavity 120 and in the thickness direction of the display device 200, so that the middle frame 100, the back panel 300 and the The support body 600 is in a tightly fitted state.

In this embodiment of the present application, the light source portion 310 of the backplane 300 may carry the light source assembly 500 . As shown in FIG. 6 , the light source assembly 500 is disposed in the second receiving cavity 124 and is disposed on the side of the light source portion 310 facing the optical component assembly 400 .

Please continue to refer to FIG. 6 , the optical component 400 is disposed in the second receiving cavity 124 and disposed on the connecting portion 330 , and the optical component 400 and the display module 200 are located on two sides of the partition wall 116 respectively. The optical component assembly 400 may include an upper diaphragm, a diffuser plate and a lower diaphragm arranged in sequence, the upper diaphragm is disposed close to the display module 200 , and the lower diaphragm is disposed close to the back plate 300 . In the embodiment of the present application, the size of the upper diaphragm is larger than that of the lower diaphragm, which can solve the bright edge caused by the cut surface of the side edge of the diffuser plate and the lower diaphragm.

In the implementation of the present application, an adhesive tape may be provided on the side of the lower diaphragm close to the back panel 300, and the lower diaphragm may be adhered to the connecting portion 330 of the back panel 300 through the adhesive tape. Wherein, the tape can be made of a material with optical properties, so that the tape has certain optical properties, so that light incident on the tape from the second cavity 124 can realize light transmission, so that the optical component 400 is fixedly connected to the tape. The brightness of the area of the display module 200 is uniform, so as to solve the problem of uneven brightness of the display area of the display module 200 caused by the brightness difference of the area fixedly connected with the tape in the optical component assembly 400 .

In the embodiment of the present application, the color of the side of the partition wall 116 close to the optical component 400 (or close to the lower diaphragm) can be set to yellow, which can solve the problem of causing the blue light transmitted by the optical component 400 to enter the upper diaphragm. The problem of blue edge at the edge of the display area of the display module 200.

It should be noted that, the display apparatus 20 in the above embodiments may also include other devices such as a battery, a camera, and the like, which will not be repeated here.

The display device provided by the embodiments of the present application has been introduced in detail above, and the principles and implementations of the present application are described by using specific examples herein. The descriptions of the above embodiments are only used to help understand the method and the core of the present application. At the same time, for those skilled in the art, according to the idea of the application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as a limitation to the application.

Claims

A middle frame, wherein the middle frame comprises a frame and a receiving cavity surrounded by the frame, the frame has an inner surface located in the receiving cavity and an outer surface disposed opposite to the inner surface, The inner surface of the middle frame is provided with a light absorbing layer for absorbing light.
The middle frame according to claim 1, wherein the frame is made of metal material, and the light absorbing layer comprises one or more oxide film layers formed on the inner surface of the frame by an anodization process.
The middle frame according to claim 1, wherein the frame is made of metal material, and the light absorbing layer comprises one or more electroplating film layers formed on the inner surface of the frame by an electroplating process.
The middle frame according to claim 1, wherein the frame is made of metal material, and the light absorbing layer comprises one or more paint film layers formed on the inner surface of the frame by a painting process.
The middle frame according to any one of claims 1 to 4, wherein the frame comprises a first wall, a second wall and a partition wall, and the first wall and the second wall are along the thickness direction of the middle frame Arranged and fixedly connected, the partition wall is connected to the inner surfaces of the first wall and the second wall, so as to partition the storage cavity into a first storage cavity and a second storage cavity.
The middle frame according to claim 5, wherein the inner surface of the second wall is provided with a plurality of clips, and the clips include a first clip wall connected to the inner surface of the second wall and a first clip connected to the inner surface of the second wall. The first clamping walls are mutually bent and the second clamping wall, the first clamping wall, the second clamping wall and the inner surface of the second wall together form a clamping groove.
The middle frame according to claim 5, wherein a side of the partition wall away from the second storage cavity is provided with a strip-shaped groove, and the width of the strip-shaped groove gradually decreases from its opening to its bottom.
A display device, comprising:

The middle frame is the middle frame as claimed in any one of claims 5 to 7;

a display module, arranged in the first receiving cavity and arranged on the partition wall;

a backboard, disposed in the second receiving cavity, the backboard includes a light source part, a bent part bent from the light source part toward the display module, and fixedly connected with the bent part the connecting part, the light source part, the connecting part and the bending part together form a third receiving cavity;

an optical component assembly, which is arranged in the second receiving cavity and on the connecting portion, and the optical component component and the display module are located on both sides of the partition wall;

The light source assembly is disposed in the second receiving cavity and is disposed on the side of the light source part facing the optical component assembly.
The display device of claim 8, further comprising:

The support body includes a first support part, a second support part and a third support part, the first support part and the second support part are bent and arranged, and the third support part and the second support part are bent The bending direction of the third support part and the second support part is the same as the bending direction of the first support part and the second support part. The third support part is disposed on the light source part, the third support part is located in the third receiving cavity, the second support part, the connection part, and the optical component assembly are stacked in sequence. The first support portion is located outside the third storage cavity, and a light absorption structure for light absorption is provided on a surface of the first support portion away from the second support portion.
The display device according to claim 9, wherein the light absorbing structure comprises a plurality of bumps spaced apart from each other.
The display device according to claim 10, wherein the bumps are formed by printing or spraying.
The display device according to claim 9, wherein one or more hooks can be provided on the side of the bent portion away from the frame, and one or more hooks can be provided on the side of the bent portion close to the frame groove;

The support body is provided with one or more first limit grooves and one or more limit parts, one of the first limit grooves can cooperate with one of the hooks, and the limit parts can cooperate with all the hooks. The card slots cooperate with each other.
The display device according to claim 12, wherein the frame is made of metal material, and the support body is made of plastic material.
The display device according to claim 9, wherein the back plate is provided with a limiting groove, the support body is provided with a second limiting groove, the limiting groove, the second limiting groove and the frame are provided with The buckles cooperate with each other to achieve mutual positioning of the middle frame and the support body.
The display device according to claim 8, wherein the optical component assembly comprises an upper diaphragm, a diffuser plate and a lower diaphragm that are stacked in sequence, the upper diaphragm is disposed close to the display module, and the lower diaphragm The sheet is placed close to the backplane.
16. The display device of claim 15, wherein the size of the upper film is larger than that of the lower film.
The display device according to claim 15, wherein an adhesive tape is provided on the side of the lower film sheet close to the back plate, and the lower film sheet is adhered to the connection part of the back plate through the adhesive tape, and the The tape is made of material with optical properties.
16. The display device according to claim 15, wherein the color of a side of the partition wall close to the lower diaphragm is set to yellow.
A display device, comprising:

The middle frame includes a first wall, a second wall and a partition wall, the first wall and the second wall are arranged along the thickness direction of the middle frame, and the partition wall is connected to the first wall and the partition wall. the inner surface of the second wall, such that the first wall surrounds to form a first receiving cavity and the second wall surrounds to form a second receiving cavity;

a display module, arranged in the first receiving cavity and arranged on the partition wall;

a backboard, disposed in the second receiving cavity, the backboard includes a light source part, a bending part bent from the light source part toward the display module, and fixedly connected with the bending part the connecting part, the light source part, the connecting part and the bending part together form a third receiving cavity;

an optical component assembly, disposed in the second receiving cavity, and disposed on the connecting portion, and the optical component component and the display module are located on both sides of the partition wall;

The support body includes a first support part, a second support part and a third support part, the first support part and the second support part are bent and arranged, and the third support part and the second support part are bent The bending direction of the third support part and the second support part is the same as the bending direction of the first support part and the second support part. The third support part is disposed on the light source part, the third support part is located in the third receiving cavity, the second support part, the connection part, and the optical component assembly are stacked in sequence. The first support portion is located outside the third storage cavity, and a light absorption structure for light absorption is provided on the side of the first support portion away from the second support portion; and

The light source assembly is disposed in the second receiving cavity and is disposed on the side of the light source part facing the optical component assembly.
The display device of claim 19, wherein the light absorbing structure comprises a plurality of bumps spaced apart from each other.