CN216437343U

CN216437343U - Backlight module and display device

Info

Publication number: CN216437343U
Application number: CN202122765651.8U
Authority: CN
Inventors: 陈伟城; 韩冬
Original assignee: TCL King Electrical Appliances Huizhou Co Ltd
Current assignee: TCL King Electrical Appliances Huizhou Co Ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-05-03
Anticipated expiration: 2031-11-11

Abstract

The embodiment of the application provides a backlight unit and display device, backlight unit includes: a diffusion plate; the membrane is stacked with the diffusion plate, and a first positioning structure is arranged on the membrane; the mounting, with diffuser plate and diaphragm joint, be provided with second location structure on the mounting, first location structure cooperatees with second location structure to carry on spacingly to the diaphragm. The backlight unit that this application embodiment provided, through setting up the mounting with diaphragm and diffuser plate joint, the cooperation of second location structure on the mounting and the first location structure on the diaphragm is in order to carry on spacingly to the diaphragm, and simple structure just saves space, is favorable to realizing backlight unit's no frame effect, has improved backlight unit's production efficiency, reduction in production cost.

Description

Backlight module and display device

Technical Field

The application belongs to the technical field of display equipment, and more specifically relates to a backlight unit and display equipment applying the backlight unit.

Background

At present, in the display product industry, the design of display products such as televisions or displays is changing day by day, and the lightness, thinness and no frame of the products are a trend of modern aesthetic. Inside the backlight unit of TV set or display, traditional diaphragm adopts articulates the mode, punches the diaphragm to make the convex hangers of backplate pass the diaphragm hole and realize the diaphragm and articulate, the diaphragm fixed knot that this mode formed constructs more complicatedly, can't satisfy backlight unit frameless's design demand, has influenced the appearance aesthetic feeling of TV set or display, thereby can't satisfy user aesthetic demand.

Therefore, a new backlight module is needed to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a backlight unit and display device, realizes backlight unit's no frame effect, and simple structure and convenient assembling do not need the center or glue frame spare part, effectively reduce backlight unit's cost.

The embodiment of the application provides a backlight module, include:

a diffusion plate;

the membrane is stacked with the diffusion plate, and a first positioning structure is arranged on the membrane;

the mounting, with the diffuser plate with the diaphragm joint, be provided with second location structure on the mounting, first location structure with second location structure cooperatees, in order to right the diaphragm carries on spacingly.

In some embodiments, the first positioning structure is a groove or a first through hole provided on the diaphragm, and the second positioning structure is a protrusion formed on the fixing member; the bulge is positioned in the groove or the first through hole to be matched with the groove or the first through hole and limit the diaphragm.

In some embodiments, the diffuser plate is provided with a second through hole, the first positioning structure is a first through hole provided on the membrane, and the second positioning structure is a boss formed on the fixing member; the protruding parts are located in the first through hole and the second through hole, are matched with the first through hole and the second through hole, and limit the diaphragm and the diffusion plate.

In some embodiments, the diaphragm includes a first surface, the first positioning structure forms a contact surface on the diaphragm, the contact surface is opposite to the first surface, the fixing member further includes a third positioning structure opposite to the second positioning structure, the third positioning structure abuts against the first surface, and the second positioning structure abuts against the contact surface to limit the diaphragm.

In some embodiments, the fixture further comprises a fourth locating feature and a fifth locating feature disposed opposite the fourth locating feature, the diffuser plate further comprises a second surface, and the diaphragm further comprises a third surface disposed opposite the second surface; the fourth positioning structure is abutted with the second surface, the fifth positioning structure is abutted with the third surface, and the diffusion plate and the diaphragm are limited.

In some embodiments, the backlight module further includes a back plate, the back plate is provided with an accommodating space, and the fixing member is disposed in the accommodating space and connected to the back plate.

In some embodiments, the backlight module further comprises a buffer member disposed between the fixing member and the back plate.

In some embodiments, the buffer member is wrapped around the outer periphery of the fixing member.

In some embodiments, the number of the fixing pieces is multiple, and the fixing pieces are arranged at intervals.

The embodiment of the application further provides a display device, which comprises a backlight module and a display panel arranged on the backlight module, wherein the backlight module is any one of the backlight modules.

The backlight module that this application embodiment provided, the range upon range of setting of diaphragm and diffuser plate, through mounting with diaphragm and diffuser plate joint, be provided with first location structure on the diaphragm, be provided with second location structure on the mounting, first location structure cooperatees with second location structure and carries on spacingly to the diaphragm, simple structure and save space, and convenient assembling is favorable to realizing backlight module's no frame effect, does not need the center or glues frame spare part, effectively reduces backlight module's cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. 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.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present disclosure.

Fig. 2 is a first structural schematic diagram of the fixing element and the buffering element shown in fig. 1.

Fig. 3 is a second structural diagram of the fixing element and the buffering element shown in fig. 1.

Fig. 4 is a schematic cross-sectional view of a backlight module according to an embodiment of the present application.

Fig. 5 is an exploded schematic view of a backlight module according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application. The embodiment of the application provides a backlight module to solve the problem that the existing diaphragm assembling structure is complex and cannot meet the design requirement of the backlight module without a frame. The following description will be made with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present disclosure. The embodiment of the present application provides a backlight module, which includes a diffusion plate 30, a film 20, and a fixing member 10. The membrane 20 is stacked with the diffusion plate 30, and the fixing member 10 is engaged with the diffusion plate 30 and the membrane 20 to fix the diffusion plate 30 and the membrane 20. Illustratively, a groove or a first through hole 21 is formed on the diaphragm 20, and a protrusion is formed at one end of the fixing member 10, and the protrusion is located in the groove or the first through hole 21 and is matched with the groove or the first through hole 21, so as to limit the diaphragm 20. It is understood that in some embodiments, the membrane 20 is disposed on the upper surface of the diffuser 30, and the diffuser 30 is partially attached to the double-sided adhesive and adhered to the membrane 20. Carry out spacing fixed with diaphragm 20 and diffuser plate 30 through mounting 10, diaphragm 20 need not adopt the mode of hanging, simple structure, and convenient assembling, the operation of being convenient for effectively improves the operating efficiency, and simultaneously, mounting 10 carries out the buckle to diffuser plate 30 and diaphragm 20 fixed, forms a whole with diffuser plate 30 and diaphragm 20, can effectively prevent the problem that diaphragm 20 and diffuser plate 30 break away from.

In practical applications, the film 20 includes multiple optical films, such as a diffusion sheet, a prism sheet, a lens sheet, etc., the multiple optical films are stacked to form the film 20, the film 20 performs functions of light uniformity and brightness enhancement, and the backlight module can provide a high-brightness and uniform-light-emitting surface light source for the display panel under the combined action of the film 20 and the diffusion plate 30.

It should be noted that, the size of the protruding portion of the fixing member 10 needs to be matched with the size of the groove or the first through hole 21 on the membrane 20, so that the protruding portion of the fixing member 10 can be clamped into the groove or the first through hole 21, thereby limiting the membrane 20 and preventing the membrane 20 from falling off.

In some embodiments, the membrane 20 and the diffusion plate 30 are stacked, the first through hole 21 is formed on the membrane 20, the second through hole 31 is formed on the diffusion plate 30, and a protrusion is formed at one end of the fixing member 10, wherein the protrusion is located in the first through hole 21 and the second through hole 31 and is matched with the first through hole 21 and the second through hole 31, so as to limit the membrane 20 and the diffusion plate 30. It should be noted that, the size of the protruding portion matches with the size of the first through hole 21 and the second through hole 31, and after the diaphragm 20 is assembled with the diffuser plate 30, the positions of the first through hole 21 and the second through hole 31 correspond, and the protruding portion can be located in the first through hole 21 and the second through hole 31 to match with the first through hole 21 and the second through hole 31, so as to limit the diaphragm 20 and the diffuser plate 30. In the embodiment of the application, carry out spacing fixedly to diffuser plate 30 and diaphragm 20 through setting up mounting 10, diaphragm 20 need not adopt the mode of articulating, simple structure, convenient assembling, the operation of being convenient for effectively improves the operating efficiency, and simultaneously, mounting 10 carries out the buckle to diffuser plate 30 and diaphragm 20 and fixes, forms a whole with diffuser plate 30 and diaphragm 20, can effectively prevent the problem that diaphragm 20 and diffuser plate 30 drop.

Referring to fig. 2 and 3, fig. 2 is a first structural schematic diagram of the fixing element 10 and the buffering element 50 shown in fig. 1, and fig. 3 is a second structural schematic diagram of the fixing element 10 and the buffering element 50 shown in fig. 1. In the embodiment of the present application, the fixing member 10 includes a second positioning structure 11, a third positioning structure 12, a fourth positioning structure 13 and a fifth positioning structure 14 which are fixedly connected. The second positioning structure 11 is opposite to the third positioning structure 12, the fourth positioning structure 13 is opposite to the fifth positioning structure 14, and one end of the second positioning structure 11 is disconnected from one end of the fourth positioning structure 13 to form a gap. The second positioning structure 11 is clamped in the groove or the first through hole 21 of the membrane 20, and is matched with the groove or the first through hole 21 to limit the membrane 20 and the diffusion plate 30. In some embodiments, the second positioning structure 11 is inserted into the first through hole 21 and the second through hole 31 and is matched with the first through hole 21 and the second through hole 31, so as to limit the diaphragm 20 and the diffusion plate 30.

The second positioning structure 11, the third positioning structure 12, the fourth positioning structure 13, and the fifth positioning structure 14 are integrally formed, and the fixing member 10 may be made of plastic, aluminum alloy, metal, or the like.

In some embodiments, the third positioning structure 12 and the fifth positioning structure 14 are provided with a buffer member 50 at the outer side thereof, and the buffer member 50 can be adhered to the outer surfaces of the third positioning structure 12 and the fifth positioning structure 14 by double-sided adhesive. The buffer member 50 is made of rubber, which is rich in elasticity, and can buffer the collision and impact caused by external force, thereby effectively avoiding the problem of cracks when the edge of the diffusion plate 30 or the membrane 20 or the edge of the through hole is impacted by the external force.

Referring to fig. 4 and 5 in combination with fig. 1 to 3, fig. 4 is a schematic cross-sectional view of a backlight module according to an embodiment of the present disclosure, and fig. 5 is an exploded schematic view of the backlight module according to the embodiment of the present disclosure.

In the embodiment of the present application, the diaphragm 20 includes a first surface 22, the first positioning structure forms a contact surface 23 on the diaphragm 20, the contact surface 23 is opposite to the first surface 22, the third positioning structure 12 abuts against the first surface 22, and the second positioning structure 11 is clamped into the groove or the first through hole 21 of the diaphragm 20 and abuts against the contact surface 23, so that the fixing member 10 can limit the diaphragm 20 and the diffusion plate 30 in the X/Y direction.

In addition, the diffusion plate 30 and the film sheet 20 are stacked, the diffusion plate 30 further includes a second surface 32, the film sheet 20 further includes a third surface 24 disposed opposite to the second surface 32, wherein the fourth positioning structure 13 abuts against the second surface 32, and the fifth positioning structure 14 abuts against the third surface 24, so that the fixing member 10 limits the film sheet 20 in the Z direction. It should be noted that the second positioning structure 11 of the fixing member 10 is snapped into the first through hole 21 of the membrane 20 and the second through hole 31 of the diffusion plate 30, and the fixing member 10 limits the membrane 20 and the diffusion plate 30 in the X/Y/Z direction, so as to effectively fix the diffusion plate 30 and the membrane 20 and prevent the fixing member 10 from falling off.

The backlight module that this application embodiment provided still includes backplate 40, backplate 40 includes bottom plate 43 and connects in the curb plate 42 at bottom plate 43 edge, the inboard of curb plate 42 is provided with supporting part 41, supporting part 41 is used for bearing display panel's border, supporting part 41 forms integrative backplate 40 of bending with curb plate 42 integrated into one piece, supporting part 41 can form display panel's loading face, thereby reach the effect of no frame, and do not need center or glue frame spare part, moreover, the steam generator is simple in structure, effectively reduce backlight module's cost. Wherein, the bottom plate 43, the side plate 42 and the supporting portion 41 enclose an accommodating space, the fixing member 10 is disposed in the accommodating space and connected with the back plate 40, and the diffusion plate 30 and the diaphragm 20 are partially located in the accommodating space. Illustratively, the fourth positioning structure 13 abuts the bottom plate 43, or the third positioning structure 12 abuts the side plate 42.

In some embodiments, the buffering member 50 and the fixing member 10 are disposed in the receiving space of the backplate 40, the diffusion plate 30 and the membrane 20 are partially located in the receiving space, and the buffering member 50 is located between the fixing member 10 and the backplate 40. Illustratively, the buffer member 50 abuts against the side plate 42 or the supporting portion 41, and due to the buffering effect of the buffer member 50, the problem of cracks occurring when the edge of the diffuser plate 30 or the membrane 20 or the edge of the through hole is impacted by external force can be avoided.

It can be understood that, fix diaphragm 20 and diffuser plate 30 through mounting 10, so that mounting 10 and diaphragm 20 and diffuser plate 30 form a whole, put mounting 10 into the accommodation space of backplate 40, make overall structure more stable, and assembly operation is simple and convenient, effectively improve the operating efficiency, and through setting up bolster 50 at the surface of mounting 10, can cushion collision and the impact that external force caused, effectively avoid the problem that appears the crackle when the edge of diffuser plate 30 or diaphragm 20 or through-hole edge receive external force and strike.

In some embodiments, the number of the fixing members 10 may be set to be a plurality according to the size of the backlight module, and a plurality of fixing members 10 are distributed around the diffusion plate 30 and the film 20 at intervals, so that the film 20 and the diffusion plate 30 are fixed more firmly, and the stability of the whole structure is further increased.

The embodiment of the application further provides a display device, which comprises a backlight module and a display panel arranged on the backlight module, wherein the backlight module is any one of the backlight modules. The backlight module that provides of this application embodiment adopts integrative backplate 40 of bending, and backplate 40 need not set up the hangers of diaphragm 20, but in putting into backplate 40's accommodation space after fixing diaphragm 20 and diffuser plate 30 through mounting 10, this backlight module structure does not need center or glues frame spare part, is favorable to realizing backlight module's no frame effect.

The embodiment of the application provides a pair of backlight unit and display device, the range upon range of setting of diaphragm 20 and diffuser plate 30, connect diaphragm 20 and diffuser plate 30 joint through mounting 10, be provided with first location structure on the diaphragm 20, be provided with second location structure 11 on the mounting 10, first location structure cooperatees with second location structure 11 and carries on spacingly to diaphragm 20, moreover, the steam generator is simple in structure and saves space, be favorable to realizing backlight unit's no frame effect, do not need the center or glue frame spare part, the production efficiency of backlight unit is improved, the manufacturing cost of backlight unit is reduced.

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 or implying relative importance or as implying a number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

The backlight module and the display device provided by the embodiment of the present application are described in detail above, and specific examples are applied herein to explain the principle and the embodiment of the present application, and the description of the above embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A backlight module, comprising:

a diffusion plate;

2. The backlight module according to claim 1, wherein the first positioning structure is a groove or a first through hole formed on the film, and the second positioning structure is a protrusion formed on the fixing member; the bulge is positioned in the groove or the first through hole to be matched with the groove or the first through hole and limit the diaphragm.

3. The backlight module as claimed in claim 1, wherein the diffusion plate has a second through hole, the first positioning structure is a first through hole formed on the film, and the second positioning structure is a protrusion formed on the fixing member; the protruding parts are located in the first through hole and the second through hole, are matched with the first through hole and the second through hole, and limit the diaphragm and the diffusion plate.

4. The backlight module according to claim 1, wherein the film comprises a first surface, the first positioning structure forms a contact surface on the film, the contact surface is opposite to the first surface, the fixing member further comprises a third positioning structure opposite to the second positioning structure, the third positioning structure abuts against the first surface, and the second positioning structure abuts against the contact surface to limit the film.

5. The backlight module according to claim 4, wherein the fixing member further comprises a fourth positioning structure and a fifth positioning structure disposed opposite to the fourth positioning structure, the diffuser plate further comprises a second surface, and the film further comprises a third surface disposed opposite to the second surface; the fourth positioning structure is abutted with the second surface, the fifth positioning structure is abutted with the third surface, and the diffusion plate and the diaphragm are limited.

6. The backlight module according to any one of claims 1 to 5, further comprising a back plate, wherein the back plate is provided with a receiving space, and the fixing member is disposed in the receiving space and connected to the back plate.

7. The backlight module according to claim 6, further comprising a buffer member disposed between the fixing member and the back plate.

8. The backlight module as claimed in claim 7, wherein the buffer member covers an outer periphery of the fixing member.

9. The backlight module as claimed in claim 1, wherein the fixing member is plural in number, and the plural fixing members are spaced apart from each other.

10. A display device comprising a backlight module and a display panel mounted on the backlight module, wherein the backlight module is the backlight module of any one of claims 1 to 9.