CN218413152U

CN218413152U - Backlight module and display device

Info

Publication number: CN218413152U
Application number: CN202222604704.2U
Authority: CN
Inventors: 万业; 李荣荣
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-31
Anticipated expiration: 2032-09-29

Abstract

The application discloses backlight unit and display device relates to and shows technical field, backlight unit includes backplate and hou gai, the hou gai is fixed on the backplate, just the hou gai with the interval sets up formation accommodation space between the backplate, the back is covered and is provided with at least one first grafting structure, be provided with at least one second grafting structure on the backplate, first grafting structure with second grafting structure quantity is the same, just first grafting structure with second grafting structure is pegged graft fixedly, through the aforesaid setting, need not adopt extra screw again to fix backplate and hou gai, reduces the part cost, practices thrift the assemble duration to in the follow-up needs back cover and backplate when doing over again the maintenance, it is also more convenient to dismantle.

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

The conventional display device pursues the aesthetic feeling of no frame, but most display devices can only achieve three-side no frame because the side of the display panel needs to be connected with an external circuit board.

And with the circuit board of display panel electric connection, generally all turn over the back and the backplate fixed connection that turn over the backplate, the circuit board that exposes this moment collides with easily and takes place the damage, consequently, what need use the back lid shields the protection to the circuit board, current back lid generally carries out fixed connection with the backplate through a plurality of screws, and the fixed point position is more, and part cost increases, and in addition when follow-up needs carry out the rework maintenance to the circuit board, the dismouting operation is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a backlight unit and display device need not adopt extra screw again to fix backplate and hou gai, saves part cost, has practiced thrift assemble duration, and it is easier to dismantle.

The application discloses backlight unit, backlight unit includes backplate and hou gai, the hou gai is fixed on the backplate, just the hou gai with the interval sets up and forms accommodation space between the backplate, the hou gai is provided with at least one first grafting structure, be provided with at least one second grafting structure on the backplate, first grafting structure with second grafting structure quantity is the same, just first grafting structure with second grafting structure is pegged graft fixedly.

Optionally, the back plate includes a back plate main body, the second plug-in structure is disposed on the back plate main body and protrudes toward the rear cover, and a socket is disposed on a side surface of the second plug-in structure; the rear cover comprises a rear cover main body, the first inserting structure is arranged on the side edge of the rear cover main body, and the first inserting structure is inserted into the socket and in interference fit with the second inserting structure.

Optionally, at least one positioning protrusion is disposed on a side of the second plug structure, which is attached to the first plug structure, at least one positioning hole is disposed at a position of the first plug structure, which corresponds to the positioning protrusion, the number of the positioning protrusions corresponds to the number of the positioning holes one-to-one, and the positioning protrusions extend into the positioning holes.

Optionally, the positioning hole is a circular hole, and the area of the cross section of the positioning protrusion is gradually reduced along the direction close to the first inserting structure.

Optionally, at least one positioning hole is formed in one side, which is attached to the first insertion structure, of the second insertion structure, at least one positioning protrusion is arranged at a position, corresponding to the positioning hole, of the first insertion structure, the number of the positioning protrusions corresponds to the number of the positioning holes one by one, and the positioning protrusions extend into the positioning holes; the positioning hole is a through hole, and the area of the cross section of the positioning bulge is gradually reduced along the direction close to the second inserting structure.

Optionally, the first plug structure is semicircular in shape, and the cross-sectional area of the first plug structure gradually decreases along a direction away from the rear cover main body.

Optionally, the direction that first grafting structure inserted the socket is first direction, first grafting structure is the arc with the cross-section on the vertical direction of first direction, and the direction orientation of arc mouth deviates from the bellied direction of location.

Optionally, the back plate includes a bottom plate and a side plate which are vertically arranged, the backlight module further includes a middle frame, the middle frame is arranged at a position of the side plate departing from the bottom plate and is fixedly connected with the side plate, the second plug-in structure is arranged on the bottom plate, and one side of the rear cover departing from the second plug-in structure is fixedly connected with the middle frame; the back plate comprises a plurality of second plug-in structures, and the rear cover comprises a plurality of first plug-in structures.

The application also discloses a display device, display device includes display panel and the aforesaid backlight unit, display panel and backlight unit set up oppositely, just backlight unit does display panel provides backlight.

Optionally, the display device further includes a circuit board, the circuit board is electrically connected to the display panel, the circuit board is disposed in the accommodating space and fixedly connected to the back plate, and the back cover is used for shielding the circuit board.

For current scheme of fixing lid and backplate after through the screw, the scheme of this application adopts first grafting structure and second grafting structure to carry out the fixed mode of pegging graft, and the operation is simpler, need not adopt extra screw fixation backplate and hou gai, has saved the part cost, has practiced thrift assembly time two to in follow-up needs back lid and backplate when doing over again the maintenance, dismantle also swiftly more portably.

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 display device of the present application;

FIG. 2 is a schematic cross-sectional view of a display device of the present application;

fig. 3 is a schematic bottom view of a backlight module according to the present application;

fig. 4 is an enlarged schematic view of a first plug structure and a second plug structure of the present application;

FIG. 5 is a schematic planar view of a first and second mating structure of the present application;

FIG. 6 is a schematic view of a locating projection and locating hole of the present application;

FIG. 7 is a schematic view of a first plugging configuration of the present application;

fig. 8 isbase:Sub>A schematic cross-sectional view of the first plug structurebase:Sub>A-base:Sub>A' of fig. 7.

10, a display device; 20. a display panel; 30. a backlight module; 300. a back plate; 310. a back plate main body; 320. a second plug-in structure; 321. a socket; 322. positioning the projection; 341. a base plate; 342. a side plate; 400. a rear cover; 410. a rear cover main body; 420. a first plug-in structure; 421. positioning holes; 500. a middle frame; 600. a circuit board.

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 any variations thereof, are intended to cover a non-exclusive inclusion, which may have the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or combinations thereof.

Also, the terms of orientation or positional relationship designated as "vertical", "horizontal", etc., are described based on the orientation or relative positional relationship shown in the drawings, and are only for the convenience of simplifying the 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 "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; 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 schematic diagram of a display device of the present application, and as shown in fig. 1, discloses a display device 10, the display device 10 includes a display panel 20, a circuit board 600 and a backlight module 30, the display panel 20 and the backlight module 30 are oppositely disposed, and the backlight module 30 does the display panel 20 provides backlight, the circuit board 600 with the display panel 20 is electrically connected, and is fixedly disposed in the backlight module 30, the back plate 300 deviates from one side of the display panel 20.

The present application further discloses a backlight module 30, and improves the backlight module 30, which can be used for the display device 10 described above, for the backlight module 30, the present application provides the following design:

fig. 2 is a schematic cross-sectional view of a display device of the present application, as shown in fig. 2, the backlight module 30 includes a back plate 300 and a back cover 400, the back cover 400 is fixed on the back plate 300, and the back cover 400 and the back plate 300 are spaced apart to form an accommodation space, the back cover 400 is provided with at least one first plug-in structure 420, the back plate 300 is provided with at least one second plug-in structure 320, the number of the first plug-in structures 420 is the same as that of the second plug-in structures 320, and the first plug-in structures 420 are fixedly plugged with the second plug-in structures 320.

The back plate 300 includes a bottom plate 341 and a side plate 342, the backlight module 30 further includes a middle frame 500, the middle frame 500 is disposed at a position where the side plate 342 deviates from the bottom plate 341 and is fixedly connected with the side plate 342, the second plug structure 320 is disposed on the bottom plate 341, and one side of the rear cover 400 deviating from the second plug structure 320 is fixedly connected with the middle frame 500.

The circuit board 600 is disposed in a receiving space formed between the rear cover 400 and the rear plate 300 and fixedly connected to the bottom plate 341 of the rear plate 300, and the rear cover 400 is used to shield the circuit board 600 to prevent the circuit board 600 from being exposed.

Set up first grafting structure 420 on back lid 400, set up second grafting structure 320 on backplate 300, it is fixed with second grafting structure 320 to peg graft through first grafting structure 420, for current carry out the scheme fixed with back lid 400 and backplate 300 through the screw, the fixed mode of this application is simpler, and has avoided the use of screw, has reduced part cost, has reduced the equipment time, and when in follow-up needs carry out the rework maintenance to back lid 400 and backplate 300, dismantle more swiftly portably.

Fig. 3 is a schematic bottom view of a backlight module according to the present application, and as shown in fig. 3, the back plate 300 includes a plurality of second inserting structures 320, the back cover 400 includes a plurality of first inserting structures 420, and the first inserting structures 420 are uniformly spaced, so that the connection between the back cover 400 and the back plate 300 is more stable.

As shown in fig. 4, the rear panel 300 includes a rear panel main body 310, the second plug structure 320 is disposed on the rear panel main body 310 and faces the direction of the rear cover 400, a socket 321 is disposed on a side surface of the second plug structure 320, the rear cover 400 includes a rear cover main body 410, the first plug structure 420 is disposed on a side edge of the rear cover main body 410, and the rear panel 300 and the rear cover 400 have certain elasticity for metal materials, the first plug structure 420 is inserted into the socket 321, so that the first plug structure 420 and the second plug structure 320 are in interference fit.

The first inserting structure 420 is equivalent to a plug tongue, the second inserting structure 320 is equivalent to a plug hole, the plug tongue is arranged on the rear cover 400, the plug hole is arranged on the back plate 300, the rear cover 400 and the back plate 300 can be stably matched through interference fit of the plug tongue and the plug hole, the use of screws is reduced, in addition, the second inserting structure 320 needs to be protruded relative to the back plate main body 310 and needs to have certain thickness of the back plate 300, the first inserting structure 420 does not need to have the thickness, therefore, the second inserting structure 320 is arranged on the back plate 300, the first inserting structure 420 is arranged on the rear cover 400, the rear cover 400 can be processed in a light and thin mode, the cost is reduced, and the assembling efficiency is improved.

Of course, it is also possible that the rear cover 400 includes a rear cover main body 410, the first plug-in structure 420 is disposed at a side of the rear cover main body 410 and protrudes toward the rear cover 400, and a side of the first plug-in structure 420 is provided with a socket 321; the backplane 300 comprises a backplane body 310, the second plugging structure 320 is disposed on the backplane body 310, and the second plugging structure 320 is inserted into the receptacle 321 and is in interference fit with the first plugging structure 420.

This application is in with second grafting structure 320 setting on backplate main part 310, and the orientation the direction of back lid 400 is outstanding, and the side of second grafting structure 320 is provided with socket 321, and back lid 400 includes back lid main part 410, and first grafting structure 420 sets up the side of back lid main part 410, during first grafting structure 420 inserted socket 321, takes the example with second grafting structure 320 interference fit, has still made further improvement to first grafting structure 420 and second grafting structure 320, specifically as follows:

as shown in fig. 5, at least one positioning protrusion 322 is disposed on a side of the second inserting structure 320, which is attached to the first inserting structure 420, at least one positioning hole 421 is disposed at a position of the first inserting structure 420, which corresponds to the positioning protrusion 322, the number of the positioning protrusions 322 corresponds to the number of the positioning holes 421, and the positioning protrusions 322 extend into the positioning holes 421. The positioning protrusion 322 and the positioning hole 421 are matched to realize the positioning function between the first plug structure 420 and the second plug structure 320, and also play a secondary reinforcing role for the first plug structure 420 and the second plug structure 320.

The positioning hole 421 is a circular hole, and the area of the cross section of the positioning protrusion 322 gradually decreases along the direction close to the first inserting structure 420. The outer portion of the positioning protrusion 322 is sloped to facilitate the insertion of the first plug structure 420 from the socket 321 of the second plug structure 320. When the rear cover 400 and the rear plate 300 are detached, the first plug structure 420 can be easily pulled out of the second plug structure 320, and the positioning hole 421 may be a through hole or a blind hole.

Of course, as shown in fig. 6, at least one positioning hole 421 is disposed on one side of the second plug structure 320, which is attached to the first plug structure 420, at least one positioning protrusion 322 is disposed at a position of the first plug structure 420, which corresponds to the positioning hole 421, the number of the positioning protrusions 322 corresponds to the number of the positioning holes 421, the positioning protrusions 322 extend into the positioning holes 421, the positioning holes 421 are through holes, and the area of the cross section of the positioning protrusions 322 is gradually reduced along a direction close to the second plug structure 320.

For the above scheme that the positioning protrusion 322 is formed on the second inserting structure 320 and the positioning hole 421 is formed on the first inserting structure 420, the positioning hole 421 is formed on the surface where the second inserting structure is attached to the first inserting structure 420, when the rear cover 400 is removed from the rear panel 300, a vertical force can be applied to the positioning protrusion 322, so that the positioning protrusion 322 is firstly separated from the positioning hole 421, and then the first inserting structure 420 is pulled out from the second inserting structure 320, so that the detachment is more convenient.

As shown in fig. 7 to 8, the first plug structure 420 has a semicircular shape, and the cross-sectional area of the first plug structure 420 decreases in a direction away from the rear cover body 410. The shape of the socket 321 is a strip shape, the first inserting structure 420 is a sheet structure, and the semicircular first inserting structure 420 can be inserted into the second inserting structure 320 from the socket 321 of the second inserting structure 320 without very accurate positioning.

The direction in which the first plugging structure 420 is inserted into the socket 321 is a first direction, the direction indicated by an arrow in fig. 7 is the first direction, the cross section of the first plugging structure 420 in the direction perpendicular to the first direction is an arc, and the direction of the arc is away from the positioning protrusion 322; the arc-shaped first plug-in structure 420 does not need to increase the thickness of the rear cover 400, but increases the tolerance between the first plug-in structure 420 and the second plug-in structure 320 through deformation, so that the first plug-in structure 420 and the second plug-in structure 320 are matched more tightly.

It should be noted that the inventive concept of the present application can form many embodiments, but the application documents are limited in space and cannot be listed one by one, so that the above-described embodiments or technical features can be arbitrarily combined to form new embodiments without conflict, and after the embodiments or technical features are combined, the original technical effects will be enhanced

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 solution 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, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panel, which can be applied to the above solutions.

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. The utility model provides a backlight module, backlight module includes backplate and hou gai, the back lid is fixed on the backplate, just the back lid with the interval sets up and forms accommodation space between the backplate, its characterized in that, it is provided with at least one first grafting structure to cover after, be provided with at least one second grafting structure on the backplate, first grafting structure with second grafting structure quantity is the same, just first grafting structure with second grafting structure is pegged graft fixedly.

2. The backlight module according to claim 1, wherein the back plate comprises a back plate main body, the second plug structure is disposed on the back plate main body and protrudes toward the back cover, and a socket is disposed on a side surface of the second plug structure;

the rear cover comprises a rear cover main body, the first inserting structure is arranged on the side edge of the rear cover main body, and the first inserting structure is inserted into the socket and in interference fit with the second inserting structure.

3. The backlight module according to claim 2, wherein at least one positioning protrusion is disposed on a side of the second inserting structure that is opposite to the first inserting structure, at least one positioning hole is disposed on a position of the first inserting structure that corresponds to the positioning protrusion, the number of the positioning protrusions corresponds to the number of the positioning holes one-to-one, and the positioning protrusion extends into the positioning hole.

4. The backlight module according to claim 3, wherein the positioning holes are circular holes, and the cross-sectional area of the positioning protrusions decreases along a direction approaching the first plugging structure.

5. The backlight module according to claim 2, wherein at least one positioning hole is disposed at a side of the second inserting structure that is opposite to the first inserting structure, at least one positioning protrusion is disposed at a position of the first inserting structure that corresponds to the positioning hole, the number of the positioning protrusions corresponds to the number of the positioning holes one-to-one, and the positioning protrusions extend into the positioning holes;

the positioning hole is a through hole, and the area of the cross section of the positioning bulge is gradually reduced along the direction close to the second inserting structure.

6. The backlight module as claimed in claim 2, wherein the first plug structures are semi-circular in shape and gradually decrease in cross-sectional area in a direction away from the rear cover body.

7. The backlight module according to claim 3, wherein the insertion direction of the first plug structure into the socket is a first direction, a cross section of the first plug structure perpendicular to the first direction is an arc, and a direction of the arc is away from the positioning protrusion.

8. The backlight module according to claim 2, wherein the back plate comprises a bottom plate and a side plate which are vertically arranged, the backlight module further comprises a middle frame, the middle frame is arranged at a position of the side plate which is away from the bottom plate and is fixedly connected with the side plate, the second inserting structure is arranged on the bottom plate, and one side of the back cover which is away from the second inserting structure is fixedly connected with the middle frame;

the back plate comprises a plurality of second plug-in structures, and the rear cover comprises a plurality of first plug-in structures.

9. A display device, comprising a display panel and the backlight module of any one of claims 1-8, wherein the display panel and the backlight module are disposed opposite to each other, and the backlight module provides backlight for the display panel.

10. The display device according to claim 9, further comprising a circuit board electrically coupled to the display panel, the circuit board being disposed in the accommodating space and fixedly connected to the rear plate, wherein the rear cover is configured to cover the circuit board.