CN113687542B

CN113687542B - Rubber frame, backlight module and display device

Info

Publication number: CN113687542B
Application number: CN202111014981.1A
Authority: CN
Inventors: 宋丹旺; 郑浩旋
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-12-23
Anticipated expiration: 2041-08-31
Also published as: CN113687542A

Abstract

The application discloses a rubber frame, a backlight module and a display device, wherein the rubber frame comprises a supporting plate and a baffle plate, the supporting plate is used for supporting a display panel, and the baffle plate is perpendicular to the supporting plate; the supporting plate comprises a first sinking groove, and the first sinking groove is positioned at the junction of a corner of the baffle plate and a corner of the supporting plate; the opening of the first sinking groove faces the display panel, and the vertex angle of the first sinking groove and the vertex angle of the display panel are overlapped. Through above-mentioned design, avoid display panel in transportation and reliability test, because display panel's apex angle and the contact of unevenness backup pad in gluing the frame, perhaps display panel's apex angle and gluey frame bump, lead to display panel to take place the problem of collapsing the angle and breaking the piece.

Description

Rubber frame, backlight module and display device

Technical Field

The application relates to the technical field of display, especially, relate to a glue frame, backlight unit and display device.

Background

A Liquid Crystal Display (LCD) is a Display device with excellent performance, has the advantages of thin body, space saving, soft picture, and uneasy eye fatigue, and has been widely used in various instruments and meters such as computers. With the continuous development of new technologies and the promotion of consumer demands, the requirements of the display device on the thickness are higher and higher at present, the thickness of the whole display device is developed from the initial 3-5mm to 2-3mm, even smaller than 2mm, and the glass substrate and the display panel are continuously thinned. In the display device in the prior art, when the display panel is assembled with the backlight module, the display panel and the rubber frame are adhered together, the inner frame of the rubber frame is rectangular, and the corner of the rubber frame is adhered to the top angle of the display panel.

Glue the frame because the material piles up the contact surface unevenness that leads to display panel easily in the corner of gluing the frame in forming process, moreover along with the continuous attenuate of glass substrate among the display panel, its structural strength also weakens relatively, again because glass substrate's breakable characteristic, after installing display panel in backlight unit, display device is in transportation and reliability test, display panel appears collapsing the problem of piece easily, lead to display device to show unusually, product function failure, influence the customer and use.

Disclosure of Invention

The utility model provides a glue frame, backlight unit and display device prevents that the problem of display panel collapse angle fragment from appearing.

The application discloses a rubber frame, which comprises a supporting plate and a baffle plate, wherein the supporting plate is used for supporting a display panel, the baffle plate is perpendicular to the supporting plate, the supporting plate comprises a first sinking groove, and the first sinking groove is positioned at the junction of the corner of the baffle plate and the corner of the supporting plate; the opening of the first sinking groove faces the display panel, and the first sinking groove is overlapped with the top angle of the display panel.

Optionally, the support plate further includes a second sinking groove, and the second sinking groove is located at a junction between the side wall of the baffle plate and the side wall of the support plate, and extends along the length direction of the baffle plate; the opening of the second sinking groove faces the display panel, and the second sinking groove is overlapped with the edge of the display panel.

Optionally, the depth of the first sinking groove and the depth of the second sinking groove are both smaller than the thickness of the supporting plate, and the first sinking groove is communicated with the second sinking groove.

Optionally, one side of the support plate, which faces away from the display panel, is provided with a reinforcing structure, and the reinforcing structure corresponds to the first sinking groove and the second sinking groove and is connected with the support plate and the baffle plate.

Optionally, corners of the baffle are rounded corners, and the corners of the baffle and the corners of the first sunken grooves coincide in the thickness direction of the support plate.

Optionally, the first sinking groove is oval, four corners of the first sinking groove are rounded corners, a long axis direction of the first sinking groove is the same as a width direction of the supporting plate, and a short axis direction of the first sinking groove is the same as a length direction of the supporting plate.

Optionally, the baffle plate includes an avoiding groove, the avoiding groove is located at a corner of the baffle plate, and two ends of the avoiding groove are connected with two side walls of the baffle plate; the inner wall of the avoiding groove is arc-shaped, and the inner wall of the avoiding groove is between half and three quarters of a whole circle.

The application also discloses backlight unit, backlight unit includes backplate, optical assembly and as above glue the frame, glue the frame with optical assembly sets up on the backplate, just it encircles to glue the frame optical assembly sets up.

The application also discloses a display device, display device includes display panel and as above backlight unit, backlight unit sets up one side of display panel, for display panel provides backlight.

Optionally, the top angle of the display panel is a rounded corner or a chamfered angle.

Compared with the scheme that the contact surface between the display panel and the glue frame is not processed at present, the first sinking groove is formed in the supporting plate of the glue frame and is located at the junction of the corner of the baffle and the corner of the supporting plate, so that accumulated materials at the corner of the glue frame due to an injection molding process can be removed by the first sinking groove, and the part, which is attached to the supporting plate in the glue frame, of the display panel is flat; the apex angle of display panel does not contact with any structure in gluing the frame this moment, avoids display panel in transportation and reliability test, because display panel's apex angle and the contact of unevenness backup pad in gluing the frame, perhaps display panel's apex angle and gluing the frame and bump, lead to display panel to take place the problem of collapsing the angle and breaking the piece.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a partial schematic view of a first viewing angle of a first display device according to a first embodiment of the present disclosure;

fig. 2 is a partial schematic view of a second viewing angle of a first display device according to a first embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of the display device of FIG. 1;

FIG. 4 is a schematic view of a glue frame according to a first embodiment of the present application;

FIG. 5 is a schematic view of a portion of a second display device according to a first embodiment of the present application;

FIG. 6 is a partial schematic view of a third display device according to the first embodiment of the present application;

fig. 7 is a partial schematic view of a first display device according to a second embodiment of the present application;

fig. 8 is a partial schematic view of a first display device according to a third embodiment of the present application.

10, a display device; 100. a backlight module; 110. a back plate; 120. a rubber frame; 121. a support plate; 122. a baffle plate; 123. a first sink tank; 124. a second sink tank; 125. a reinforcing structure; 126. an avoidance groove; 127. a protrusion; 130. an optical component; 200. a display panel.

Detailed Description

It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless stated otherwise, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.

Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

The present application is described in detail below with reference to the figures and alternative embodiments.

The first embodiment is as follows:

fig. 1 is a partial schematic view of a first viewing angle of a display device according to a first embodiment of the present disclosure, and as shown in fig. 1, fig. 2 and fig. 3, the display device 10 includes a backlight module 100 and a display panel 200, where the backlight module 100 is disposed on one side of the display panel 200 to provide backlight for the display panel 200. The backlight module 100 includes a back plate 110, a rubber frame 120 and an optical assembly 130, wherein the rubber frame 120 and the optical assembly 130 are disposed on the back plate 110, and the rubber frame 120 is disposed around the optical assembly 130. The rubber frame 120 comprises a support plate 121 and a baffle plate 122, wherein the baffle plate 122 is arranged on the back plate 110 and surrounds the optical assembly 130; the supporting plate 121 is vertically connected with the inner wall of the baffle 122, and the display panel 200 is disposed on the supporting plate 121; the supporting plate 121 comprises a first sinking groove 123, and the first sinking groove 123 is located at the intersection of the corner of the baffle 122 and the corner of the supporting plate 121; the opening of the first sinking groove 123 faces the display panel 200, and the first sinking groove 123 overlaps with a top corner of the display panel 200.

Because gluey frame generally adopts injection moulding process, at the in-process of moulding plastics, receive the influence of liquid material velocity of flow and mould die cavity corner structural characteristic, after the shaping, the accumulational problem of material can appear in the corner of gluey frame, make the position of backup pad at the corner in gluey frame uprise, lead to display panel after the installation, when display panel's apex angle and the corner laminating of gluey frame, display panel's apex angle position atress is uneven, stress concentration leads to the problem of extrusion rupture of slices to appear easily. Therefore, the first sinking groove 123 is formed in the supporting plate 121 of the rubber frame 120, and the first sinking groove 123 is located at the junction of the corner of the baffle 122 and the corner of the supporting plate 121, so that the first sinking groove 123 can remove accumulated materials at the corner of the rubber frame 120 due to an injection molding process, and the parts, attached to the supporting plate 121, of the display panel 200 in the rubber frame 120 are flat; at this time, the top corner of the display panel 200 is not in contact with any structure in the rubber frame 120, so that the problem that the display panel 200 is broken due to the fact that the top corner of the display panel 200 is in contact with the uneven support plate 121 in the rubber frame 120 or the top corner of the display panel 200 collides with the rubber frame 120 in the transportation and reliability tests of the display panel 200 is avoided. The design of the first sinking groove 123 has a small improvement on the backlight module 100, and the improvement design has little influence on the cost of the whole display device 10, which does not cause the increase of the cost, but greatly helps to improve the yield of the display device 10, thus being beneficial to reducing the production cost in the long run.

In this embodiment, the optical assembly 130 in the backlight module 100 includes a reflective sheet, a light guide plate and an optical film, which are sequentially disposed on the back plate 110. The display device 10 also includes a backlight, a front frame, and other components, not to name a few.

Specifically, the first sinking groove 123 is a blind groove, that is, the first sinking groove 123 does not penetrate through the supporting plate 121, so that light emitted by the backlight source is prevented from passing through the supporting plate 121, which causes light leakage of the display device 10; and when first heavy groove 123 is the blind groove, the bottom of first heavy groove 123 still has backup pad 121 part, can improve the intensity of backup pad 121 like this, avoids gluing frame 120 and receiving when the extrusion, takes place great deformation, influences display panel 200. The depth of the first sinking groove 123 is greater than 0.3mm and smaller than the difference between the thickness of the supporting plate 121 and 0.4mm, which is not only a requirement for the molding process of the first sinking groove 123, and can enable a stable first sinking groove 123 to be formed in each processed rubber frame 120, but also a requirement for the depth of the first sinking groove 123 to be greater than the height of burrs or material accumulation possibly existing at the bottom of the first sinking groove 123, so as to prevent the burrs or material accumulation possibly existing at the bottom of the first sinking groove 123 from scratching the top corner of the display panel 200.

The shape of the first sunken groove 123 may be an oval shape (a racetrack shape), or a triangular shape or a square shape, and the first sunken groove 123 is directly formed in the injection molding process of the rubber frame 120, that is, the first sunken groove 123 and the rubber frame 120 are integrally formed, so that a process of additionally cutting the first sunken groove 123 is reduced, and the first sunken groove 123 can be used as a top piece (a thimble is arranged in a mold, and the thimble can push out the rubber frame 120 in the demolding process of the rubber frame 120, which means that the thimble can be pushed into the first sunken groove 123), because burrs are generated on the surface of the rubber frame 120 contacting with the thimble after demolding, the thimble can be pushed into the first sunken groove 123 after the first sunken groove 123 is arranged, so that the burrs generated in the demolding process are concentrated in the first sunken groove 123, and the problem of stress concentration of the display panel 200 is avoided, and the display panel 200 is cracked; because the depth of first heavy groove 123 is greater than 0.3mm, is greater than the height of general burr, consequently with the burr concentrated in first heavy groove 123 back, the depth of first heavy groove 123 can be greater than the length of burr, the burr can not bulge outside first heavy groove 123 like this, can not contact display panel 200 to can not cause the influence to display panel 200.

In this embodiment, the shape of the first sinking groove 123 is preferably an ellipse, as shown in fig. 4, at this time, corners of the baffle 122 are rounded corners, and the first sinking groove 123 has two long sides, two short sides and four rounded corners, a long axis direction of the first sinking groove 123 is the same as a width direction of the supporting plate 121, and a short axis direction of the first sinking groove 123 is the same as a length direction of the supporting plate 121; wherein a round corner of the first sinking groove 123 and a corner of the baffle 122 are in the same vertical curved surface; and a long side and a short side connected with the rounded corner of the first sinking groove 123, and two side walls of the baffle 122 connected with two ends of the corner of the baffle 122 are also respectively and correspondingly positioned on the same vertical plane. The distance between one side edge of the display panel 200 and the side wall of the closest baffle 122 is less than the length of the short axis in the first sinking groove 123, and the distance between the other side edge of the display panel 200 and the side wall of the closest baffle 122 is less than the length of the long axis in the first sinking groove 123, so that the top angle of the display panel 200 overlaps with the first sinking groove 123. When the shape of the first sinking groove 123 is an ellipse, the first sinking groove is matched with the shape of the top plate in the mold, so that the thimble in the mold can be better limited in the molding process of the rubber frame 120; moreover, since a fillet of the first sinking groove 123 and a corner of the baffle 122 are in the same vertical curved surface, for the corner is a right angle, the fillet arrangement can enlarge the distance between the top angle of the display panel 200 and the corner of the baffle 122, thereby further reducing the problem that the top angle of the display panel 200 collides with the baffle 122, which causes the corner breakage of the display panel 200; in addition, the corners of the oval first sinking groove 123 are in arc transition, so that no sharp corner is generated, and the problem that the local height of the supporting plate 121 is increased due to the extrusion of liquid materials at the corner of the first sinking groove 123 in the forming process, so that the surface of the supporting plate 121 is not flat can be solved.

As shown in fig. 5, in this embodiment, a reinforcing structure 125 is further disposed on a side of the supporting plate 121 facing away from the display panel 200, one side of the reinforcing structure 125 is disposed at the bottom of the supporting plate 121 and corresponds to the first sinking groove 123, and the other side of the reinforcing structure is attached to the baffle 122, so as to improve the strength of the supporting plate 121, and avoid that the strength of the supporting plate 121 is weakened after the first sinking groove 123 is disposed, so that the display device 10 is deformed during transportation or collision, and the baffle 122 collides with the display panel 200. The reinforcing structure 125 may be a reinforcing rib or an adhesive tape; when the reinforcing structure 125 is a reinforcing rib, it can be integrally formed with the rubber frame 120, so as to improve the process efficiency; the cross-section of the reinforcing rib can be triangular, and two right-angle surfaces of the reinforcing rib are respectively attached to the baffle 122 and the support plate 121, so that the stability of the rubber frame 120 is improved, and the rubber frame 120 is prevented from deforming.

In this embodiment, the thickness of the baffle 122 is further reduced, so that the gap between the baffle 122 and the display panel 200 is increased, specifically, the gap between the baffle 122 and the display panel 200 is made to be 0.15-0.2mm, preferably 0.2mm, and this parameter is a result obtained by synthesizing the cutting tolerance of the display panel 200, the manufacturing tolerance of the backlight, and the assembly tolerance of the backlight and the display panel 200, calculating a theoretical value by referring to an algorithm formula, optimizing the theoretical value, improving data by referring to a yield of mass production, and referring to a burr factor; by adopting the parameter scheme, the processing time is reduced, the assembly time is reduced, the product yield is improved, and meanwhile, the phenomenon that the burr on the baffle 122 contacts the side wall of the display panel 200 to scratch the display panel 200 and influence the picture display effect of the display panel 200 is avoided. After installing display panel 200 on backlight unit 100, display panel 200 pastes to backup pad 121 on, fills sealed glue in the clearance to display panel 200 and baffle 122 for sealed glue is filled in first heavy groove 123 simultaneously, has both improved display device 10's stability like this, increases waterproof effect again, prevents that steam from entering into backlight unit 100 from the clearance between display panel 200 and the baffle 122. The sealant can be mixed with black paint to increase the shading effect of the display device 10 and prevent light leakage.

As shown in fig. 6, in this embodiment, a protrusion 127 may be further disposed on one side of the baffle 122 facing the display panel 200, the protrusion 127 is disposed on an inner side of at least one baffle 122 of the rubber frame 120 facing the display panel 200, and the protrusions 127 may be disposed at intervals, and a plurality of protrusions are disposed on one baffle 122; or may be arranged in series, with only one baffle 122 being provided. Through additionally arranging the protruding part 127, the design of avoiding is equivalently carried out at the corner of the rubber frame 120, the vertex angle of the display panel 200 is further prevented from touching the rubber frame 120, and the display panel 200 is prevented from being impacted to cause corner breakage.

In addition, the top corner of the display panel 200 in this embodiment may also be subjected to edge grinding or corner cutting, so that the top corner of the display panel 200 is a rounded corner or a chamfered angle, thereby further increasing the distance between the top corner of the display panel 200 and the baffle 122, reducing the possibility of the top corner of the display panel 200 contacting the baffle 122, and reducing the risk of corner breakage of the display panel 200; moreover, the edging or chamfering treatment of the display panel 200 can also improve the strength of the display panel 200, improve the quality of the display panel 200, and also reduce the risk of cracking of the glass substrate in the display panel 200; moreover, the risk that the manual worker is scratched can be avoided.

Example two:

fig. 7 is a schematic diagram illustrating a display device according to a second embodiment of the present disclosure, which is different from the first embodiment in that a second sinking groove 124 is further disposed at a boundary between a sidewall of a baffle 122 and a sidewall of a supporting plate 121, the second sinking groove 124 extends along a length direction of the baffle 122, an opening of the second sinking groove 124 faces the display panel 200, and the second sinking groove 124 overlaps with an edge of the display panel 200. After the second sinking groove 124 is additionally arranged, the situation that the contact surface at the bottom edge of the display panel 200 is uneven due to accumulation of injection molding materials in the gap of the side surface of the rubber frame 120 is avoided; after the second sinking groove 124 is formed, when the plastic frame 120 is subjected to demolding, the ejector pins in the mold can be ejected into the first sinking groove 123 and the second sinking groove 124, so that the distribution uniformity of the ejector pins is improved, burrs caused by contact with the ejector pins can only appear in the first sinking groove 123 and the second sinking groove 124 and can not appear on the surface of the supporting plate 121, and therefore the burrs cannot influence the edge and the corner of the display panel 200 and cause the edge and the corner of the display panel 200 to crack.

Specifically, the second sinking groove 124 is also a blind groove, that is, the depth of the first sinking groove 123 and the depth of the second sinking groove 124 are both smaller than the thickness of the supporting plate 121; moreover, the first sinking groove 123 is communicated with the second sinking groove 124, so that the design difficulty of the first sinking groove 123 and the second sinking groove 124 can be reduced, and the liquid material can be prevented from being deposited at the junction of the first sinking groove 123 and the second sinking groove 124 when the rubber frame 120 is injection-molded. Further, four corners of the rubber frame 120 are provided with first sinking grooves 123, two adjacent corners are provided with second sinking grooves 124, the first sinking grooves 123 and the second sinking grooves 124 are conducted, so that after the display panel 200 is installed on the backlight module 100, any edge and vertex angle of the display panel 200 are not attached to the supporting plate 121, and the display panel is only suspended on the first sinking grooves 123 and the second sinking grooves 124, and cannot be affected by the junction of the baffle 122 and the supporting plate 121 due to material stacking and burrs.

Of course, in this embodiment, a reinforcing structure 125 may be disposed on a surface of the supporting plate 121 opposite to the display panel 200, and the reinforcing structure 125 corresponds to the first sinking groove 123 and the second sinking groove 124 and is connected to the supporting plate 121 and the baffle 122, so as to improve the strength of the supporting plate 121 at the first sinking groove 123 and the second sinking groove 124 and prevent the supporting plate 121 from deforming; for the specific design of the reinforcing structure 125, reference may be made to the description of the reinforcing structure 125 in the first embodiment. At this time, the baffle 122, the supporting plate 121, the first sinking groove 123, the second sinking groove 124 and the reinforcing structure 125 are integrally formed, which not only reduces the manufacturing time, but also improves the stability of the rubber frame 120. Moreover, after the display panel 200 is attached to the supporting plate 121, when the sealant is filled between the display panel 200 and the baffle 122, the sealant is filled not only in the first sinking groove 123 but also in the second sinking groove 124, thereby further increasing the stability of the display panel 200 and the sealant frame 120.

Example three:

fig. 8 is a schematic diagram of a display device according to a third embodiment of the present application, in this embodiment, on the basis of the first embodiment and the second embodiment, an avoidance groove 126 is further disposed at a corner of the baffle 122, and two ends of the avoidance groove 126 are connected to two side walls of the baffle 122; the inner wall of the avoiding groove 126 is arc-shaped, and the inner wall of the avoiding groove 126 is between half and three quarters of a full circle.

Dodge groove 126 and be equivalent to the turning of baffle 122 and cave in a cylinder hole towards the indent, and dodge the little inside big of groove 126 opening, display panel 200 when the installation like this, the turning of baffle 122 can not be touch to display panel 200's apex angle, because even display panel 200's apex angle stretches into dodge groove 126, the baffle 122 lateral wall at corner both ends can with display panel 200's lateral wall butt, can not let display panel 200's apex angle continue to stretch into, avoid display panel 200 to collapse the piece.

It should be noted that the inventive concept of the present application can form many embodiments, but the present application has a limited space and cannot be listed one by one, so that, on the premise of no conflict, any combination between the above-described embodiments or technical features can form a new embodiment, and after the embodiments or technical features are combined, the original technical effect will be enhanced.

The technical scheme of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, and MVA (Multi-Domain Vertical Alignment) display panel, and all of them can be applied to the above scheme.

The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.

Claims

1. A rubber frame comprises a support plate and a baffle plate, wherein the support plate is used for supporting a display panel, the baffle plate is perpendicular to the support plate, the rubber frame is characterized in that,

the supporting plate comprises a first sinking groove, and the first sinking groove is positioned at the junction of the corner of the baffle plate and the corner of the supporting plate; the opening of the first sinking groove faces the display panel, and the first sinking groove is overlapped with the vertex angle of the display panel;

the first sinking groove is oval, and the depth of the first sinking groove is smaller than the thickness of the supporting plate; the corner of the baffle is a fillet, the first sinking groove is provided with two long sides, two short sides and four fillets, the long axis direction of the first sinking groove is the same as the width direction of the supporting plate, and the short axis direction of the first sinking groove is the same as the length direction of the supporting plate; the baffle plate comprises a baffle plate, a first sinking groove, a second sinking groove, a third sinking groove, a fourth sinking groove and a fourth sinking groove, wherein a fillet of the first sinking groove, a long edge and a short edge which are connected with the fillet are positioned on the same vertical curved surface of two baffle plate side walls which are respectively connected with a corner of the baffle plate and two ends of the corner of the baffle plate;

the distance between one side edge of the display panel and the closest baffle side wall is less than the length of the short axis in the first sinking groove, and the distance between the other side edge of the display panel and the closest baffle side wall is less than the length of the long axis in the first sinking groove;

the first sinking groove and the rubber frame are integrally formed through an injection molding process, the shape of the first sinking groove is matched with that of an ejector pin of a mold in the injection molding process, the first sinking groove is used as an ejector, the ejector pin is ejected into the first sinking groove, and burrs generated in the mold ejection process are concentrated in the first sinking groove.

2. A bezel in accordance with claim 1, wherein a side of the supporting plate facing away from the display panel is provided with a reinforcing structure corresponding to the first sunken groove and connected to the supporting plate and the bezel.

3. A rubber frame according to claim 1, wherein the baffle plate comprises an avoiding groove, the avoiding groove is positioned at a corner of the baffle plate, and two ends of the avoiding groove are connected with two side walls of the baffle plate;

the inner wall of the avoiding groove is arc-shaped, and the inner wall of the avoiding groove is between half and three quarters of a full circle.

4. A backlight module comprising a back plate, an optical assembly and the adhesive frame according to any one of claims 1 to 3, wherein the adhesive frame and the optical assembly are disposed on the back plate, and the adhesive frame is disposed around the optical assembly.

5. A display device, comprising a display panel and the backlight module of claim 4, wherein the backlight module is disposed on one side of the display panel to provide backlight for the display panel.

6. The display device of claim 5, wherein a top corner of the display panel is a rounded corner or a rounded right angle.