TWI823282B - Frame structure, backlight module and display device - Google Patents

Abstract

A frame structure includes a back plate includes a first side and two second sides opposite the first side. The first side extending along a first direction and each of the second sides extending along a second direction. The first side and each second side respectively have at least one first joining part and the first side has at least one second joining part. A rubber frame includes at least one side part having at least one clamping part. The clamping part is detachably combined with the corresponding first joint part. A back cover having at least one bonding member formed by extending the inner side of the back cover. The bonding member of the back cover is detachably combined with the corresponding second joining part along the second direction.

Description

Frame structure, backlight module and display device

The present invention mainly relates to a frame structure, in particular to a frame structure used in medium and large-sized liquid crystal display modules, as well as a backlight module and a display device including the frame structure.

According to the general display device, a backlight module and a display panel are included. The backlight module is provided with a plastic frame that carries the display panel. When assembling the display device, the display panel is placed on the plastic frame, and a back cover is used to fix the plastic frame, the display panel and the backlight module to complete the assembly of the display device.

The currently common fixing method is to use screws for locking. However, this fixing method requires a thicker back cover to increase the structural strength, which not only affects the overall appearance of the display device, but also requires longer assembly hours and more work. The labor and material costs are high, so the efficiency of assembly and disassembly is also poor.

In view of this, it is necessary to provide a framework structure to solve the above problems.

The object of the present invention is to provide a frame structure that can be assembled quickly.

A secondary object of the present invention is to provide a backlight module having the above-mentioned frame structure.

Another object of the present invention is to provide a display device having the above-mentioned backlight module.

In order to achieve the above object, the present invention provides a frame structure, including: a back plate, including a first side extending along a first direction, and two opposite sides of the first side along a second direction. Two extended second sides, the first side and the second side respectively have at least one first joint part, and the first side further has at least one second joint part; a plastic frame, including at least one side part, the side part has at least one holding part, the holding part is detachably combined with the corresponding first combining part; and a back cover, the inner side extends to form at least one combining part, the combining part of the back cover Detachably coupled to the corresponding second coupling portion along the second direction.

The present invention also provides a backlight module, including: the above frame structure.

The present invention further provides a display device, including: the above-mentioned backlight module: and a display panel located in front of the backlight module.

In some embodiments, the second coupling portion of the back plate is a through hole, and the coupling member of the back cover is a protruding post, and the protruding post extends through and is coupled to the corresponding through hole.

In some embodiments, at least one second side further has at least one third coupling portion, and the back cover has at least one guide member that is detachably coupled to the corresponding one along the second direction. The third joint.

In some embodiments, the third joint portion of the back plate is a locking groove with an opening facing the first side, and the guide member of the back cover is a protruding column, and the protruding column faces the first direction. Extending, the protruding column is slidably combined with the corresponding engaging groove.

In some embodiments, when the coupling part of the back cover extends in the second direction and is coupled to the corresponding second coupling part along the second direction, the guide part of the back cover faces the third Extends in one direction and is coupled to the corresponding third coupling portion along the second direction.

In some embodiments, the end of the holding portion extends toward the outer direction of the plastic frame to form a hook, and the hook is detachably coupled to the corresponding first coupling portion.

In some embodiments, the frame structure of the present invention may further include at least one fixing component. The fixing component is disposed on the opposite side of the back panel relative to the first side. The fixing component is used to connect the plastic frame and the first side. At least one of the back covers is fixedly coupled to the back panel.

The frame structure, backlight module and display device of the present invention have the following characteristics: the holding portion of the plastic frame can be moved and positioned relative to the back panel along an assembly direction, and can be detachably combined with the first combining portion of the back panel , and the coupling member of the back cover can also be moved and positioned in another assembly direction relative to the back panel and detachably coupled to the second coupling portion of the back panel. In this way, the arrangement of screws and holes can be greatly reduced and simplified. The assembly process of the frame structure can achieve the effects of quick assembly, quick disassembly and improved appearance.

The embodiments of the present invention are described in detail below with reference to the drawings. The accompanying drawings are mainly simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner. Therefore, only elements related to the present invention are marked in these drawings. , and the components shown are not drawn based on the number, shape, size ratio, etc. of the actual implementation. The actual implementation specifications and sizes are actually a selective design, and the component layout may be more complex.

The following description of the embodiments refers to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", etc., are only for reference to the directions in the attached drawings. Therefore, the directional terms used are used to explain and understand the present application, rather than to limit the present application. Additionally, in the specification, unless expressly described to the contrary, the word "comprising" will be understood to mean the inclusion of stated elements but not the exclusion of any other elements.

Please refer to Figure 1, which is a preferred embodiment of the frame structure of the present invention. It includes: a back plate 1, a plastic frame 2 and a back cover 3. The plastic frame 2 and the back cover 3 are removable respectively. Ground is combined with the back plate 1.

Please refer to FIG. 2 as well. The back panel 1 includes a first side 11 extending along a first direction D1, and two opposite sides of the first side 11 extending along a second direction D2. The two second sides 12 , for example, but without limitation, the first direction D1 of the first side 11 may extend along a straight direction or a curved direction. The first side 11 and the second side 12 respectively have at least one first coupling portion 13 coupled with the plastic frame 2 . The first side 11 further has at least a second coupling portion 14 that is coupled with the back cover 3 in a limited manner, and the second side 12 further has at least a third coupling portion 15 that is coupled with the back cover 3 in a limited manner.

Please refer to Figures 1 and 3. The plastic frame 2 includes at least one side portion 21. For example, but not limited to, the side portion 21 of the plastic frame 2 located relative to the first side 11 can also be along a straight direction or curved. direction extension. The side part 21 has at least one holding part 22 , and the holding part 22 is detachably coupled to the corresponding first coupling part 13 of the back panel 1 . In this embodiment, the first connecting portion 13 of the back panel 1 is a plurality of perforations arranged along the edge of the back panel 1 , and the holding portion 22 of the plastic frame 2 corresponds to the first connecting portion 13 of the back panel 1 . The position of the coupling part 13 is set, and the holding part 22 extends toward the assembly direction with the back panel 1 .

Referring to FIGS. 1 and 4 , optionally, at least the ends of the holding portions 22 provided on opposite sides extend toward the edge (outside) of the back panel 1 to form a hook 23 . For example, the extension directions of the hooks 23 combined with the two opposite second sides 12 are different. In this way, when you want to disassemble the back panel 1 and the plastic frame 2, you only need to remove the hooks 23 located at the edges. Push toward the center (inner side) of the back panel 1 to complete the disassembly. In this way, the plastic frame 2 can be locked and fixed to the corresponding first combining portion 13 of the back panel 1 through the at least one clamping portion 22 without damaging its body structure, and can be secured with the clamping portion 22 . The hook 23 firmly combines the plastic frame 2 with the first joint portion 13 of the back panel 1 to achieve quick assembly, quick disassembly and improved appearance.

The structural strength of the back plate 1 is preferably made of a material higher than that of the plastic frame 2 or the back cover 3. In this embodiment, the back plate 1 is made of metal, and the plastic frame 2 or the back cover 3 is made of metal. The cover 3 is made of plastic, and the back plate 1 with strong structural strength carries the plastic frame 2 or the back cover 3, which not only improves the overall mechanical strength, but also utilizes the elasticity of the plastic frame 2 to facilitate the disassembly of the plastic frame 2. The back panel 1 and the back cover 3 .

Referring to FIGS. 2 and 3 , the back cover 3 is provided with at least one coupling member 31 relative to the first side 11 of the back plate 1 . For example, the at least one coupling member 31 faces the second direction D2 As an extended protrusion, the coupling member 31 of the back cover 3 is detachably coupled to the corresponding second coupling portion 14 along the second direction D2. In this embodiment, the coupling member 31 is a plurality of protrusions arranged along the first side 11 of the back plate 1 , and the second coupling part 14 is a plurality of through holes provided relative to the protrusions. The penetration is coupled to the corresponding perforation. In this way, the back cover 3 can also be coupled to the corresponding second coupling portion 14 of the back plate 1 through the at least one coupling member 31 to serve as the back cover 3 without damaging its main structure. A limiting structure is located on the first side 11 between the board 1 and the back cover 3 .

Referring to FIG. 2 , the back cover 3 also has at least one guide 32 relative to the second side 12 of the back plate 1 . The guide 32 is detachably combined with the guide 32 along the second direction D2 . The third joint portion 15 corresponds to the back plate 1 . In this embodiment, the third joint portion 15 of the back panel 1 is an engaging groove that opens toward the first side 11 , and the guide 32 is a protruding column disposed relative to the engaging groove. The protruding pillar extends toward the first direction D1 and is slidably coupled to the corresponding engaging groove. In this way, the back cover 3 can be further engaged and fixed to the at least one third joint portion 15 of the back plate 1 through the at least one guide 32 as a position between the back plate 1 and the back cover 3 The limiting structure of the second side 12 has the effect of improving the stability of the connection between the back cover 3 and the back panel 1 at the second side 12 .

The assembly process of the preferred embodiment of the frame structure of the present invention is as follows: first, the holding portion 22 of the plastic frame 2 is coupled to the first coupling portion 13 of the back panel 1, and then the coupling portion of the back cover 3 is When the member 31 moves along the second direction D2 corresponding to the first side 11 of the back plate 1 and is correspondingly limited to the second joint portion 14 of the back plate 1, at the same time, the guide of the back cover 3 The piece 32 corresponding to the second side 12 of the back plate 1 also moves along the second direction D2 and is correspondingly limited to the third joint portion 15 of the back plate 1. In this way, the plastic frame 2 and the back plate 1 are connected. The cover 3 is combined with the back panel 1 . More preferably, the opposite side of the first side 11 of the back panel 1 is fixedly coupled to the back cover 3 to prevent the back cover 3 and the back panel 1 from being separated from each other along the second direction D2. The combination method can be Choose screw fit or fit, but not limited to this.

Please refer to Figures 5 to 7. The frame structure of the present invention can further include at least one fixing component 4. The fixing component 4 is disposed on the opposite side of the back plate 1 relative to the first side 11. In this embodiment, , the fixing component 4 is a heat sink disposed on the ground side of the backplane 1 . The fixing component 4 is used to fixedly combine at least one of the plastic frame 2 and the back cover 3 with the back plate 1 relative to the opposite side of the first side 11 .

For example, the fixing component 4 has a first member 41 and a second member 42. The first member 41 and the second member 42 jointly clamp the back plate 1 and the plastic frame 2, and the back plate 1 By being fixedly combined with the first member 41, the ground side of the back plate 1 can be fixedly combined with the plastic frame 2 and the back cover 3 in the frame structure of the present invention. To be specific, the first member 41 has a first stopper 411 and at least one combination column 412 , and the second member 42 has a second stopper 421 and at least one combination hole 422 . The first stopper 411 and the second stopper 421 jointly clamp the back plate 1 and the plastic frame 2 , and the combination post 412 of the first member 41 extends through the combination hole of the second member 42 422, and a screw member 5 is screwed with the combination column 412 of the first member 41.

Preferably, the plastic frame 2 has a through hole 24 for the coupling post 412 of the first member 41 to extend through. The first component 41 also includes a plurality of locking holes 413 configured to be locked with corresponding holes of the back panel 1 . The process of fixing the frame structure on the ground side is described as follows: after the plastic frame 2 and the back plate 1 are aligned, the first component 41 and the second component 42 of the fixing component 4 are clamped together along the third direction D3. Hold the back plate 1 and the plastic frame 2, lock them through a plurality of screws 5' corresponding to the locking holes 413 of the first member 41, and then use the screws 5 to penetrate through the second member 42. The hole 422 is locked with the locking hole 413 corresponding to the back panel 1 to fix the plastic frame 2 to the back panel 1 via the fixing component 4 .

On the other hand, the back cover 3 also has a cover plate 33 and at least one through hole 331 on the cover plate 33 , configured to be fixed on the ground side of the back plate 1 . In the frame structure, the back cover 3 is on the back The fixing process on the ground side of the board 1 is described as follows: after the back cover 3 of the frame structure and the aforementioned fixing component 4 are assembled with the back plate 1 and the plastic frame 2, the back cover 3 is connected with the plastic frame 2 along the second direction D2. The first side 11 of the back plate 1 is limited, and the cover plate 33 of the back cover 3 covers the fixedly combined back plate 1 and the plastic frame 2, and a screw member 5" extends through the second member The through holes 423 of 42, the through holes 414 of the first member 41 and the corresponding through holes 331 of the back cover 3 are used to lock the back cover 3 to the back plate 1 through the first member 41.

The frame structure of the present invention can be applied to a backlight module or a display device. The display device includes the aforementioned frame structure and a display panel. The display panel is located in front of the backlight module. In this embodiment, the display panel is a LCD panel.

Based on the above, in the frame structure of the present invention, the clamping portion of the plastic frame can be moved and positioned relative to the back panel along an assembly direction, and is detachably coupled to the first coupling portion of the back panel and the back panel. The coupling member of the cover can also be moved and positioned in another assembly direction relative to the back panel and detachably coupled to the second coupling portion of the back panel. This greatly reduces the number of screws and holes and simplifies the assembly of the frame structure. Assembly process to achieve quick assembly, quick disassembly and improved appearance.

The above-disclosed embodiments are only illustrative of the principles, characteristics and effects of the present invention, and are not intended to limit the scope of the present invention. Anyone skilled in the art can implement the invention without violating the spirit and scope of the present invention. Modifications and changes are made to the above embodiments. Any equivalent changes and modifications accomplished by applying the contents disclosed in the present invention shall still be covered by the following patent application scope.

[Invention] 1: Backplane 11: First side 12:Second side 13:The first junction 14:Second joint part 15:The third joint 2: Plastic frame 21: Side 22:Card holding department 23: Hook 24:Through hole 3:Back cover 31:Combining parts 32: Guide parts 33:Cover 331:Perforation 4: Fixed components 41:First component 411: First stop 412: Binding column 413:Lock hole 414:Perforation 42:Second component 421: Second stopper 422: Binding hole 423:Perforation 5, 5’, 5’’: screw fittings D1: first direction D2: second direction D3: Third direction

[Fig. 1] is a perspective exploded view of the frame structure of the present invention; [Fig. 2] is a perspective assembled view of the back cover of the frame structure of the present invention combined with the back plate; [Fig. 3] is a partial enlarged view of Figure 1; [Fig. Figure 4] is a perspective assembled view of the first joint portion of the plastic frame of the present invention in which the hook is connected to the back panel; [Figure 5] is a perspective exploded view of the fixing component of the present invention; [Figure 6] is a partial view of Figure 5 Enlarge image; [Fig. 7] is a partially assembled three-dimensional view of the fixing component of the present invention.

1: Backplane

11: First side

12:Second side

13:The first junction

14:Second joint part

15:The third joint

2: Plastic frame

21: Side

22:Card holding department

3:Back cover

31:Combining parts

D1: first direction

D2: second direction

D3: Third direction

Claims (9)

A frame structure includes: a back plate, including a first side extending along a first direction, and two second sides located on two opposite sides of the first side and extending along a second direction, The first side and the second side respectively have at least one first joint part, and the first side further has at least one second joint part; a plastic frame includes at least one side part, and the side part has at least one A retaining portion, the retaining portion is detachably coupled to the first coupling portion corresponding to the back plate; and a back cover, extending inwardly to form at least one coupling member, the coupling member of the back cover extends along the third The two-way assembly is detachably coupled to the second coupling portion corresponding to the back plate; wherein the assembly direction of the back plate and the plastic frame is different from the assembly direction of the back plate and the back cover. The frame structure according to claim 1, wherein the second connecting portion of the back plate is a through hole, the connecting member of the back cover is a protruding column, and the protruding column extends through and is coupled to the corresponding through hole. The frame structure as claimed in claim 1, wherein at least one second side further has at least a third coupling part, and the back cover has at least one guide member, and the guide member is detachable along the second direction. Combined with the corresponding third combining part. The frame structure as claimed in claim 3, wherein the third joint portion of the back plate is an engaging groove opening toward the first side, the guide member of the back cover is a protruding column, and the protruding The post extends toward the first direction, and the protruding post is slidably coupled to the corresponding engaging groove. The frame structure of claim 3, wherein when the coupling member of the back cover extends in the second direction and is coupled to the corresponding second coupling portion along the second direction, the coupling member of the back cover extends in the second direction. The guide member extends toward the first direction and is coupled to the corresponding third coupling portion along the second direction. The frame structure of claim 1, wherein the end of the holding portion extends toward the outer direction of the plastic frame to form a hook, and the hook is detachably coupled to the corresponding first coupling portion. The frame structure according to any one of claims 1 to 6, further comprising at least one fixing component, the fixing component being disposed on the opposite side of the back plate relative to the first side, the fixing component being used to secure the adhesive At least one of the frame and the back cover is fixedly coupled to the back plate. A backlight module includes the frame structure described in any one of claims 1 to 7. A display device, including the backlight module according to claim 8: and a display panel located in front of the backlight module.