CN114267246A - Backlight module and display device - Google Patents

Abstract

The application discloses backlight unit and display device, backlight unit is including gluing frame and backplate, the backplate parcel glues the frame, the backplate includes curb plate and bottom plate, one side of curb plate connect in the bottom plate, just the curb plate with the bottom plate respectively with glue the frame and connect, it is provided with the fixed part to glue the frame, the curb plate corresponds the position of fixed part is provided with connecting portion, the fixed part with the connecting portion cooperation is fixed, the fixed part with the gap has between the connecting portion, the packing elastic layer in the gap, the elastic layer with the fixed part with interference fit between the connecting portion, just the backplate with glue the fixed back of frame, the elastic layer is in compression state. This application can prevent effectively that backplate and frame from shaking producing between gluing when backplate or gluey frame take place dimensional change or deformation through above mode.

Description

Backlight module and display device

Technical Field

The application relates to the technical field of display, in particular to a backlight module and a display device.

Background

Along with the quality requirement of people on the display device is higher and higher, in order to prolong the service life of the display device, a backboard and a rear shell are often installed to protect electronic devices in the display device when the display device is produced, and each electronic element in the display device is supported by using a rubber frame.

Because of sticky tape complex mode can increase the thickness of product, and be unfavorable for doing over again of product, so backplate and gluey frame often adopt buckle cooperation, and the tolerance and the equipment feasibility of product are considered in backplate and gluey frame when the design, can reserve certain clearance usually, consequently can appear the not hard up problem of block easily between backplate and the gluey frame to produce the abnormal sound, influence the product quality.

In order to solve the problem, a common method is to design convex hulls on the back plate and the rubber frame, but the hard rubber frame or the convex hull of the back plate has no obvious elastic capacity, and after a product is aged, the size of the whole rubber frame changes, and a gap between the back plate and the rubber frame is larger and larger, so that the back plate and the rubber frame still shake.

Therefore, how to effectively prevent the backboard and the frame adhesive from shaking when the backboard or the frame adhesive is changed in size or deformed is a problem to be solved in the field.

Disclosure of Invention

The utility model aims at providing a backlight module and display device can prevent effectively that backplate and frame from producing between gluing and rocking when size change or deformation takes place at backplate or gluey frame.

The application discloses backlight unit, including gluing frame and backplate, the backplate parcel gluey frame, the backplate includes curb plate and bottom plate, one side of curb plate connect in the bottom plate, just the curb plate with the bottom plate respectively with glue the frame and connect, it is provided with the fixed part to glue the frame, the curb plate corresponds the position of fixed part is provided with connecting portion, the fixed part with the connecting portion cooperation is fixed, the fixed part with the gap has between the connecting portion, the elastic layer is filled in the gap, the elastic layer with the fixed part with interference fit between the connecting portion, just the backplate with glue the fixed back of frame, the elastic layer is in compression state.

Optionally, the fixing portion includes a groove, and the groove is formed by recessing the side of the rubber frame close to the side plate and facing away from the side plate; the connecting part comprises a convex strip, and the convex strip is a part of the side plate, which faces one side of the rubber frame and protrudes out of the plane of the side plate; the elastic layer is filled in the gap between the groove and the convex strip.

Optionally, the elastic layer covers and wraps the convex strip, the elastic layer is in interference fit with at least one edge of the groove, and after the elastic layer wraps the convex strip, the elastic layer does not protrude out of the plane where the side plate is located.

Optionally, the elastic layer covers and sets up the convex strip is kept away from one side of recess, the both ends of elastic layer fill in the recess with the gap between the convex strip, just the elastic layer with at least one side interference fit of recess.

Optionally, the sand grip with the recess is the V style of calligraphy, the V style of calligraphy the both sides and the top of sand grip are provided with the through-hole respectively, the elastic layer passes the through-hole, with glue frame interference fit.

Optionally, the fixing portion includes a protrusion formed by protruding one side of the rubber frame facing the side plate; the connecting part comprises a through groove, the through groove corresponds to the position of the protrusion, the elastic layer covers and is arranged on the surface of the protrusion, and the elastic layer is in interference fit with at least one side of the through groove.

Optionally, the through groove is disposed at a joint of the side plate and the bottom plate, the protrusion corresponds to the through groove in position, after the back plate is fixed to the rubber frame, the protrusion does not protrude from the outer surface of the back plate, and the elastic layer is filled in a gap between the through groove and the protrusion.

Optionally, the side plate is U-shaped, the opening of the U-shaped side plate corresponds to the side wall of the protrusion, and the elastic layer is filled between the opening of the side plate and the side wall of the protrusion.

Optionally, the elastic layer is made of a high-elasticity polymer material, and the elastic layer is arranged at a gap between the connecting part and the fixing part by adopting a plastic spraying or plastic dripping process.

The application also discloses a display device, which comprises a display panel and an optical assembly, wherein the display panel is arranged above the optical assembly; the display device further comprises the backlight module, and the backlight module is respectively connected with the display panel and the optical assembly.

For do the scheme of convex closure on backplate and gluey frame, this application cooperates fixed back through the connecting portion at the fixed part of gluing the frame and curb plate, the elastic layer is filled in the gap between fixed part and connecting portion, the elastic layer is because at first with curb plate and glue interference fit between the frame, and the elastic layer is in the state of compressed, this makes the elastic layer have certain stress, when appearing the gap between gluey frame and the backplate, elastic layer release stress takes place deformation simultaneously, the gap has been filled, can take place size change or when deforming at backplate or gluey frame like this, effectively prevent to produce between backplate and the frame and rock, in order to promote product quality.

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 schematic view of a portion of a backlight module according to a first embodiment of a display device of the present application;

FIG. 2 is a schematic view of a portion of a backlight module according to a second embodiment of the present disclosure;

FIG. 3 is a partial schematic view of a backlight module according to a third embodiment of the present disclosure;

FIG. 4 is a partial top view of a backlight module according to a fourth embodiment of the present disclosure;

FIG. 5 is a schematic view of a portion of a fifth embodiment of a backlight module in a display device according to the present application;

FIG. 6 is a schematic view of a portion of a backlight module according to a sixth embodiment of the present disclosure;

FIG. 7 is a partial schematic view of a backlight module according to a seventh embodiment of the display device of the present application.

10, a display device; 100. a backlight module; 110. a rubber frame; 111. a fixed part; 112. a groove; 113. a protrusion; 120. a back plate; 121. a side plate; 122. a connecting portion; 123. a convex strip; 124. a through groove; 125. a base plate; 126. a through hole; 130. an elastic layer; 200. a display panel; 300. an optical assembly.

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 otherwise specified, 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 appropriate.

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

Fig. 1 is a partial schematic view of a backlight module in a display device according to an embodiment of the present application, and as shown in fig. 1, the present application discloses a display device 10 including a display panel 200 and an optical assembly 300, wherein the display panel 200 is disposed above the optical assembly 300; the display device 10 further includes a backlight module 100, and the backlight module 100 is respectively connected to the display panel 200 and the optical assembly 300.

The optical assembly 300 mainly provides a light source for the display panel 200 to ensure normal display of the display panel 200, and the backlight module 100 is respectively connected with the optical assembly 300 and the display panel 200, so that the optical assembly 300 and the display panel 200 can be better supported through the backlight module 100, and the optical assembly 300 and the display panel 200 are protected through the backlight module 100, thereby preventing the optical assembly 300 and the display panel 200 from being damaged in the using or transporting process.

The display panel 200 employed in the display device 10 of the present application may be a liquid crystal display panel or an organic light emitting diode display panel, and is not particularly limited herein;

the display device 10 of the present application is improved for the backlight module 100, and can effectively prevent the backboard 120 and the sealant from shaking when the backboard 120 or the sealant frame 110 changes in size or deforms, so as to improve the product quality. Specifically, the present application provides the following improvements for fixing the back plate 120 and the sealant in the backlight module 100:

as shown in fig. 1, the present application discloses a backlight module 100, which includes a plastic frame 110 and a back plate 120, the back plate 120 wraps the plastic frame 110, the back plate 120 includes a side plate 121 and a bottom plate 125, one side of the side plate 121 is connected to the bottom plate 125, (in some backlight modules, the side plate may be perpendicular to the bottom plate, or may not be perpendicular to the bottom plate, the present application only exemplifies the case where the side plate 121 is perpendicular to the bottom plate 125), and the side plate 121 and the bottom plate 125 are respectively connected to the plastic frame 110, the plastic frame 110 is provided with a fixing portion 111, the side plate 121 is provided with a connecting portion 122 at a position corresponding to the fixing portion 111, the fixing portion 111 is fixed to the connecting portion 122, a gap is formed between the fixing portion 111 and the connecting portion 122, the gap is filled with an elastic layer 130, the elastic layer 130 is in interference fit with the fixing portion 111 and the connecting portion 122, and the elastic layer 130 is in a compressed state after the back plate 120 is fixed to the plastic frame 110.

This application cooperates fixed back through connecting portion 122 at the fixed part 111 of gluey frame 110 and curb plate 121, the gap between fixed part 111 and connecting portion 122 is filled with elastic layer 130, elastic layer 130 is because at first with curb plate 121 and glue between the frame 110 interference fit, and elastic layer 130 is in the state of compressed, this makes elastic layer 130 have certain stress, when appearing the gap between gluey frame 110 and backplate 120, elastic layer 130 release stress takes place deformation simultaneously, the gap has been filled, can take place size change or when deforming at backplate 120 or gluey frame 110 like this, effectively prevent that backplate 120 and frame from gluing between producing and rocking, in order to promote the product quality.

The gap between the rubber frame 110 and the back plate 120 is derived from: because the gap reserved between the rubber frame 110 and the back plate 120 in the production and assembly process, the gap generated by shaking in the daily use process, and the gap generated by the deformation of the rubber frame 110 and the back plate 120 in the long-time use process, the gaps are often eliminated by using the self structures of the rubber frame 110 and the back plate 120, which is not easy, but the elastic layer 130 in the application not only plays a role of filling the gap between the rubber frame 110 and the back plate 120, but also under the condition that the gap between the back plate 120 and the rubber frame 110 is sealed, when the gap occurs again in the back plate 120 and the rubber frame 110 due to the reasons, the elastic layer 130 continuously generates deformation to adapt to the gap, and the gap is refilled, so that the shaking problem caused by the overlarge gap between the back plate 120 and the frame rubber is effectively solved.

Specifically, as shown in fig. 1, the fixing portion 111 includes a groove 112, and the groove 112 is formed by recessing the side of the rubber frame 110 close to the side plate 121 and facing away from the side plate 121; the connecting portion 122 includes a protruding strip 123, the protruding strip 123 is a portion of the side plate 121 facing the rubber frame 110 and protruding from the plane of the side plate 121; the elastic layer 130 fills the gap between the groove 112 and the protrusion 123.

In this embodiment, the protruding strips 123 and the grooves 112 are used for fastening, so as to fix the back plate 120 and the rubber frame 110 together, and the gap existing between the fixed back plate 120 and the rubber frame 110 is filled with the filled elastic layer 130, so as to prevent the phenomena of shaking, abnormal sound and the like between the back plate 120 and the rubber frame 110 after installation, when the rubber frame 110 or the back plate 120 is deformed and the size may change in a long-term use process, the elastic layer 130 releases stress according to the size of the gap from an initial compression state, the elastic layer 130 is deformed and expanded, the gap existing is filled again, and the gap is continuously kept in contact with the back plate 120 and the rubber frame 110, so as to effectively prevent the problem of shaking between the back plate 120 and the rubber frame 110 due to the gap generated by the size change between the back plate 120 and the rubber frame 110, and enhance the structural stability of the display device 10, the damage problem caused by frequent shaking between the back plate 120 and the frame glue is effectively avoided, and the product quality is improved.

In addition, the elastic layer 130 in the present application is made of a high elastic polymer material, such as PU paint, rubber, ready mixed paint (multi-layer paint such as anti-rust primer can be added), and the elastic layer 130 is disposed at the gap between the connecting portion 122 and the fixing portion 111 by a plastic spraying or dropping process. Therefore, the process is easier to realize and the production is more convenient.

Of course, the elastic layer 130 may be adhered to the gap between the connecting portion 122 and the fixing portion 111 by using any method such as glue, secondary injection molding, coating, etc., and the above effects can also be achieved, which is not limited herein.

The thickness less than or equal to 3mm of elastic layer 130 in this application can make backplate 120 and glue between the frame 110 not too thick under the condition that prevents to appear the gap between backplate 120 and the gluey frame 110 like this, is favorable to realizing the design of narrow frame. Meanwhile, the color of the elastic layer 130 may be the same as the color of the back plate 120, which may improve the integrity of the back plate 120 and the aesthetic appearance of the display device 10.

Fig. 2 is a partial schematic view of a second embodiment of the backlight module in the display device of the present application, and the embodiment shown in fig. 2 is based on the improvement of fig. 1, as shown in fig. 2, the elastic layer 130 covers and wraps the protruding strips 123, at least one side of the elastic layer 130 and the grooves 112 are in interference fit, and after the elastic layer 130 wraps the protruding strips 123, the elastic layer 130 does not protrude from the plane where the side plates 121 are located.

The difference between this embodiment and the previous embodiment is mainly that, the elastic layer 130 covers the protruding strips 123, and completely wraps up the surfaces of the protruding strips 123, so that not only can the gap between the back plate 120 and the rubber frame 110 be effectively filled, but also the elastic layer 130 can not easily fall off, the service life of the elastic layer 130 is prolonged, the area of the elastic layer 130 attached to the side plate 121 is increased, and the utilization rate of the elastic layer 130 is improved.

In addition, it is more worth mentioning, when display device 10 is in transport or use, receive the effect of external force, the effort can be conducted on backplate 120 and gluey frame 110, if the impact of effort is too big, can lead to backplate 120 and gluey frame 110 in buckle department, namely the position that sand grip 123 and recess 112 cooperation are fixed appears becoming flexible, even break, it is easy to cause the production in gap to become flexible, therefore, when elastic layer 130 wraps up the sand grip 123 surface completely, form one deck "elasticity coat" on sand grip 123, make sand grip 123 and the direct buckle department of recess 112 can have certain cushioning effect, come the release effort that receives, just so be difficult to appear the gap between sand grip 123 and the recess 112, can also strengthen the protection between backplate 120 and gluey frame 110, improve the life of product.

And elastic layer 130 can with recess 112 one side interference fit, make between backplate 120 and the gluey frame 110 zonulae occludens get together, just can prevent to produce between backplate 120 and the gluey frame 110 and rock, avoid appearing the circumstances such as abnormal sound, elastic layer 130 also can with a plurality of limit interference fit of recess 112 certainly, make fixed more firm between backplate 120 and the gluey frame 110 like this, be difficult to take place to become flexible, the effect of anti external effort is also better.

Fig. 3 is a partial schematic view of a third embodiment of a backlight module in a display device according to the present application, and the embodiment shown in fig. 3 is based on the improvement of fig. 2, as shown in fig. 3, an elastic layer 130 is disposed on one side of a protrusion 123 away from a groove 112, two ends of the elastic layer 130 are filled in a gap between the groove 112 and the protrusion 123, and at least one side of the elastic layer 130 and the groove 112 are in interference fit.

Different from the previous embodiment, in the present embodiment, the convex strips 123 of the side plates 121 and the convex strips 123 on the rubber frame 110 may be fixed first, then the elastic material is dropped into the gaps from the outer sides of the convex strips 123, and after the elastic material is cured to form the elastic layer 130, the elastic layer 130 fills the gaps between the convex strips 123 and the grooves 112 from the outer sides of the convex strips 123. At this time, the main part of the elastic layer 130 is located outside the protruding strip 123 and covers the outer surface of the protruding strip 123 to form an elastic protection layer for the protruding strip 123, when the protruding strip 123 of the side plate 121 is collided or collided, the elastic layer 130 can play a role in protecting the protruding strip 123, the protruding strip 123 is prevented from being damaged, the fastener between the protruding strip 123 and the groove 112 is prevented from loosening or falling off, and the fixing effect of the back plate 120 and the rubber frame 110 is further improved; and the both ends of elastic layer 130 stretch into in the gap of sand grip 123 and gluey frame 110 and form the packing, and be used for connecting backplate 120 and gluey frame 110, prevent to take place to rock between backplate 120 and the gluey frame 110, in this embodiment, two parts of elastic layer 130 have two kinds of different effects, the main part protection avoids colliding and both ends are filled and is avoided the gap promptly, and the gap between sand grip 123 of curb plate 121 and the recess 112 of frame gum need not fill elastic layer 130, do not influence and reduce the effect of rocking to between backplate 120 and the gluey frame 110 yet, the area that elastic layer 130 was filled has still been reduced simultaneously, and the material is saved, and the cost is controlled.

Fig. 4 is a partial top view of a fourth embodiment of the backlight module in the display device of the present application, and the embodiment shown in fig. 4 is based on the improvement of fig. 3, as shown in fig. 4, the protruding strips 123 and the grooves 112 are both V-shaped, two sides and a top end of the V-shaped protruding strips 123 are respectively provided with through holes 126, and the elastic layer 130 passes through the through holes 126 and is in interference fit with the rubber frame 110.

In this embodiment, the grooves 112 and the protrusions 123 are designed in a V shape, and the protrusions 123 and the grooves 112 are recessed inward, so that the fastening structure of the protrusions 123 and the grooves 112 can be protected, and the position of the protrusions 123 is prevented from colliding with the outer side of the side plate 121, meanwhile, through holes 126 are formed in the top and two sides of the V-shaped protrusions 123, and the elastic material is dripped into the through holes 126 from the outer side of the side plate 121 toward the direction of the grooves 112 in a plastic dripping manner, so that the elastic material can be formed into the elastic layer 130 by thermal solidification or UV solidification, which not only has a simple manufacturing process, but also has a smaller area occupied by only dripping the elastic layer 130 formed from the local portion of the protrusions 123, thereby saving the material and reducing the cost; moreover, the design of V-shaped's sand grip 123 and recess 112, after dripping into elastic material and forming elastic layer 130, the gap between recess 112 and sand grip 123 is filled to elastic layer 130, and the gap that forms between recess 112 and the sand grip 123 is triangle-shaped this moment, fill respectively through the top and two sides to triangle-shaped, make elastic layer 130 need not fill the gap completely, also can realize forming better being connected between recess 112 and the sand grip 123, avoid taking place to rock between backplate 120 and the gluey frame 110, the triangle-shaped characteristic has still been utilized simultaneously, the steadiness of being connected between backplate 120 and the gluey frame 110 has been improved.

Fig. 5 is a partial schematic view of a fifth embodiment of a backlight module in a display device of the present application, and the embodiment shown in fig. 5 is based on the improvement of fig. 1, as shown in fig. 5, the fixing portion 111 includes a protrusion 113, and the protrusion 113 is formed by protruding one side of the rubber frame 110 facing the side plate 121; the connecting portion 122 includes a through groove 124, the through groove 124 corresponds to the position of the protrusion 113, the elastic layer 130 covers the surface of the protrusion 113, and the elastic layer 130 is in interference fit with at least one side of the through groove 124.

Different from the embodiment shown in fig. 1, in the present embodiment, the protrusion 113 is disposed on one side of the rubber frame 110 facing the side plate 121, the through groove 124 is disposed at a position of the side plate 121 corresponding to the protrusion 113, and the protrusion 113 and the through groove 124 are used to form a snap fit for fixing, so as to fixedly connect the back plate 120 and the rubber frame 110 together.

Cover on protruding 113's surface and set up one deck elastic layer 130, the tip of elastic layer 130 is filled respectively in the gap that leads to between groove 124 and protruding 113, and elastic layer 130 and a limit interference fit who leads to groove 124, it is inseparabler to lead to groove 124 and protruding 113 being connected, the phenomenon of avoiding leading to the gap between groove 124 and protruding 113 to cause backplate 120 and gluey frame 110 to rock takes place, of course, elastic layer 130 also can all interference fit with the side that leads to groove 124, fixed effect is better like this, elastic layer 130 is difficult to drop. The part of the elastic layer 130 covering the surface of the protrusion 113 can form a protective layer, so as to prevent the protrusion 113 from being damaged or falling off due to external impact, and thus the fixing effect between the back plate 120 and the rubber frame 110 is not affected.

In this application, after gluey frame 110 is fixed with the cooperation of backplate 120, protruding 113 can be in same plane with curb plate 121, also can partly protrusion in curb plate 121, when protruding 113 is in same plane with curb plate 121, the wholeness is better, more aesthetic feeling, and it is touched by mistake still to have avoided protruding 113, the condition that leads to backplate 120 and gluey frame 110 to drop takes place, when protruding 113 part protrusion in curb plate 121, when dismantling backplate 120 and gluey frame 110, press protruding 113 more easily, more convenient dismantlement.

Fig. 6 is a partial schematic view of a sixth embodiment of a backlight module in a display device of the present application, where the embodiment shown in fig. 6 is based on the improvement of fig. 5, as shown in fig. 6, a through slot 124 is disposed at a connection position of a side plate 121 and a bottom plate 125, a protrusion 113 corresponds to a position of the through slot 124, after the back plate 120 is fixed to the rubber frame 110, the protrusion 113 does not protrude from an outer surface of the back plate 120, and an elastic layer 130 is filled in a gap between the through slot 124 and the protrusion 113.

Different from the embodiment shown in fig. 5, in the present embodiment, the through groove 124 is disposed at the connection position of the side plate 121 and the bottom plate 125, that is, at the corner of the back plate 120, a part of the side wall of the through groove 124 is formed by the side plate 121, and a part of the side wall of the through groove 124 is formed by the bottom plate 125, and the protrusion 113 and the through groove 124 are disposed at the connection position of the side plate 121 and the bottom plate 125, so that some lateral impacts can be avoided, and the protrusion 113 and the through groove 124 are prevented from being buckled and separated, even if the back plate 120 is subjected to an external acting force, when the acting force acts on the protrusion 113, the protrusion 113 releases the acting force to both the longitudinal side plate 121 and the transverse bottom plate 125, thereby further ensuring the stability of the protrusion 113, and making the protrusion 113 not easy to separate; in addition, in some narrow bezel display devices 10, the protrusions 113 and the through grooves 124 are disposed at a position further back from the user, without affecting the look and feel and the sense of beauty.

The elastic layer 130 is filled in the gap between the protrusion 113 and the through groove 124, so that the back plate 120 and the rubber frame 110 are not easy to shake, when the size of the back plate 120 and the rubber frame 110 changes due to long-term use and the gap continues to appear, the elastic layer 130 compressed in the gap between the protrusion 113 and the through groove 124 releases stress, expands and is filled with the gap again, the stability of fixing the back plate 120 and the rubber frame 110 is ensured, and the problem of shaking caused by size change is not easy to occur between the back plate 120 and the rubber frame 110; moreover, the elastic layer 130 forms a connection between the protrusion 113 on the frame glue and the bottom plate 125 and the side plate 121 in the back plate 120, so that the protrusion 113 forms a stable connection to the back plate 120 in the longitudinal direction and the transverse direction, thereby effectively avoiding shaking, improving the stability of the back plate 120 and the glue frame 110, avoiding falling off between the back plate 120 and the glue frame 110, and improving the quality of the product.

Fig. 7 is a partial schematic view of a seventh embodiment of a backlight module in a display device of the present application, and the embodiment shown in fig. 7 is based on the improvement of fig. 6, as shown in fig. 7, a side plate 121 is U-shaped, an opening of the U-shaped side plate 121 corresponds to a sidewall of a protrusion 113, and an elastic layer 130 is filled between the opening of the side plate 121 and the sidewall of the protrusion 113.

The embodiment is different from the embodiment shown in fig. 7 in that, in the embodiment, the protrusion 113 is fastened and fixed with the through groove 124, and on the basis of filling the elastic layer 130 in the gap, a further improvement is made on the structure of the side plate 121 to match the elastic layer 130 to form a stable connection, the side plate 121 is designed to be a U-shaped structure, that is, the side plate 121 is folded on the basis of the original side plate 121, so that the top of the side plate 121 forms an arc shape, which can meet the requirements of some narrow-frame display devices 10, and the back plate 120 is not easy to scratch hands and is more beautiful when being installed. In addition, because the design of narrow frame, some module backplate 120 are whole can be very thin, in frequent use, very easy fracture takes place, and the anti effort effect to external is also more weak, designs for "bilayer structure" reinforcing curb plate 121's structural strength can be realized to U type curb plate 121, under the condition of realizing the narrow frame, makes backplate 120 more durable, has prolonged backplate 120's life, has improved the quality of product.

An opening is formed at one end of the side plate 121 close to the protrusion 113, an elastic material is dripped into a gap between the opening of the side plate 121 and the side wall of the protrusion 113 in a plastic dropping mode, the elastic material flows into the opening to form adhesion, after the elastic material is cured by thermal solidification and the like to form the elastic layer 130, a part of the whole elastic layer 130 is filled between the protrusion 113 and the through groove 124, and the other part of the whole elastic layer 130 is filled into the opening formed by the side plate 121, so that the elastic layer 130 has a 'ground grabbing' effect and is not easy to fall off when being connected to the gap between the protrusion 113 and the through groove 124, the integrity is better, the back plate 120 and the rubber frame 110 are not easy to shake, and when the size of the back plate 120 and the rubber frame 110 changes due to long-time use and the gap continues to appear, the elastic layer 130 compressed in the gap between the protrusion 113 and the through groove 124 releases stress, expands, is full of the gap, ensures the stability of the backboard 120 and the rubber frame 110, and prevents the backboard 120 and the rubber frame 110 from shaking due to the size change.

The fixed mode of backplate and gluey frame in this application embodiment is not only limited to protruding fixed with logical groove cooperation to and the scheme that sand grip and recess cooperation are fixed, also can take the structure that additionally sets up similar sand grip on the curb plate, perhaps additionally sets up similar bellied structure on gluey frame, all can realize above-mentioned effect, and the repeated description is no longer repeated here one by one, only explains as the example in this application embodiment, and does not do specifically and prescribe.

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 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 (10)

1. A backlight module comprises a rubber frame and a back plate, wherein the back plate wraps the rubber frame and comprises a side plate and a bottom plate, one side of the side plate is connected with the bottom plate, and the side plate and the bottom plate are respectively connected with the rubber frame,

the rubber frame is provided with a fixing part, a connecting part is arranged at the position, corresponding to the fixing part, of the side plate, the fixing part is matched and fixed with the connecting part, a gap is formed between the fixing part and the connecting part, an elastic layer is filled in the gap, the elastic layer is in interference fit with the fixing part and the connecting part, and after the back plate is fixed with the rubber frame, the elastic layer is in a compressed state.

2. The backlight module according to claim 1, wherein the fixing portion comprises a groove formed by recessing the side of the frame close to the side plate toward the side far from the side plate; the connecting part comprises a convex strip, and the convex strip is a part of the side plate, which faces one side of the rubber frame and protrudes out of the plane of the side plate; the elastic layer is filled in the gap between the groove and the convex strip.

3. The backlight module according to claim 2, wherein the elastic layer covers and wraps the protruding strips, the elastic layer is in interference fit with at least one edge of the grooves, and after the elastic layer wraps the protruding strips, the elastic layer does not protrude out of the plane where the side plates are located.

4. The backlight module according to claim 2, wherein the elastic layer covers a side of the protrusion away from the groove, two ends of the elastic layer are filled in a gap between the groove and the protrusion, and the elastic layer is in interference fit with at least one side of the groove.

5. The backlight module according to claim 2, wherein the protruding strips and the grooves are V-shaped, through holes are respectively formed at two sides and top ends of the V-shaped protruding strips, and the elastic layer passes through the through holes and is in interference fit with the rubber frame.

6. The backlight module as claimed in claim 1, wherein the fixing portion comprises a protrusion formed by protruding one side of the frame facing the side plate; the connecting part comprises a through groove, the through groove corresponds to the position of the protrusion, the elastic layer covers and is arranged on the surface of the protrusion, and the elastic layer is in interference fit with at least one side of the through groove.

7. The backlight module according to claim 6, wherein the through grooves are disposed at the connection portions of the side plates and the bottom plate, the protrusions correspond to the through grooves, after the back plate is fixed to the bezel, the protrusions do not protrude from the outer surface of the back plate, and the elastic layer is filled in gaps between the through grooves and the protrusions.

8. The backlight module according to claim 7, wherein the side plates are U-shaped, the openings of the U-shaped side plates correspond to the sidewalls of the protrusions, and the elastic layer is filled between the openings of the side plates and the sidewalls of the protrusions.

9. The backlight module according to any one of claims 1 to 8, wherein the elastic layer is made of a high elastic polymer material, and the elastic layer is disposed at a gap between the connecting portion and the fixing portion by a plastic injection or dropping process.

10. A display device comprising a display panel and an optical assembly, the display panel being disposed over the optical assembly; characterized in that the display device further comprises a backlight module according to any one of claims 1 to 9, the backlight module being connected to the display panel and the optical assembly, respectively.

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