CN220381416U - Frame structure, backlight module and display device - Google Patents

Abstract

The utility model relates to a frame structure, a backlight module and a display device. A frame structure comprises an inner frame and a plurality of outer frames combined on the inner frame. The inner frame is provided with at least one first joint piece arranged on the outer peripheral surface, and the first joint piece extends along at least one first direction on the outer peripheral surface. The outer frame is detachably combined with the inner frame along the first direction, so that the inner frame is surrounded by the outer frame. Each outer frame is provided with at least one second joint piece arranged on the inner peripheral surface of the outer frame. Each outer frame is combined on the inner frame by the mutual matching of the second joint piece and the first joint piece of the inner frame in the first direction. The inner frame and the outer frame are directly combined for assembly, so that the number of assembly components can be reduced, and convenience in assembly and reworking is also improved. The utility model also provides a backlight module and a display device comprising the frame structure.

Description

Frame structure, backlight module and display device

The present application claims priority from chinese patent application No. 202321583553.5 entitled "frame structure, backlight module, and display device" filed on 6/20/2023, the entire contents of which are incorporated herein by reference.

Technical Field

The present utility model relates to an optical device, and more particularly, to a frame structure, a backlight module and a display device.

Background

The LCD (Liquid Crystal Display) has the advantages of high image quality, small size, light weight, low voltage driving, low power consumption, wide application range, etc., and is widely used in consumer electronic or computer products such as portable televisions, mobile phones, camcorders, notebook computers, desktop monitors, and projection televisions, etc., and becomes the mainstream of the display.

Conventional displays generally include a display panel and a backlight module connected to the display panel through a frame assembly. The backlight module is assembled by combining the frame assembly, the light source and each optical sheet. Because the current backlight module component is still complicated, the hair Bian Yiwu is easy to remain, the maintenance cannot be performed, and the reworking cost is further increased. Therefore, how to increase the assembly efficiency of the backlight module, reduce the material to reduce the burr and foreign matter residue, clean easily, reduce the material reworking cost caused by poor assembly, and increase the product yield is an important issue.

Disclosure of Invention

It is therefore an object of the present utility model to provide a frame structure with a reduced number of components.

The frame structure of the utility model comprises an inner frame and a plurality of outer frames combined on the inner frame. The inner frame is provided with at least one first joint piece arranged on the outer peripheral surface, and the first joint piece extends along at least one first direction on the outer peripheral surface. The outer frame is detachably combined with the inner frame along the first direction, so that the inner frame is surrounded by the outer frame. Each outer frame is provided with at least one second joint piece arranged on the inner peripheral surface of the outer frame, wherein each outer frame is combined on the inner frame by mutually matching the second joint piece and the first joint piece of the inner frame in the first direction.

The other technical means of the utility model is that each outer frame comprises a side wall and a bottom wall connected with the side wall, the second joint piece is arranged on the inner peripheral surface of the side wall, the side wall and the bottom wall jointly encircle a containing space, and the inner frame is contained in the containing space.

The other technical means of the utility model is that the inner frame further comprises a plurality of fixing columns, and the fixing columns extend towards the bottom wall of the outer frame.

The other technical means of the utility model is that the inner frame further comprises a plurality of nuts respectively buried in the corresponding fixing columns, the bottom wall of each outer frame is provided with a plurality of through holes, the through holes respectively correspond to the fixing columns of the inner frame, and the frame structure further comprises a plurality of locking elements penetrating through the through holes and correspondingly locked on the nuts.

Another technical means of the present utility model is that the first engaging member of the inner frame is in a groove shape, and the second engaging member of each outer frame is in a convex strip shape.

The first engaging members of the inner frame are disposed around the outer peripheral surface so as to extend along the first direction and a second direction, the second direction is not parallel to the first direction, the number of the second engaging members of each outer frame is plural and divided into a first group extending along the first direction, and a second group extending along the second direction, the second engaging members belonging to the first group are capable of sliding in cooperation with the first engaging members of the inner frame in the first direction until the second engaging members belonging to the second group are positioned on the first engaging members of the inner frame in the second direction.

The other technical means of the utility model is that the inner frame comprises a plurality of reflecting parts which are arranged in a matrix, and a frame surrounding the reflecting parts, and the first jointing piece is arranged on the peripheral surface of the frame surrounding part.

Another objective of the present utility model is to provide a backlight module, which includes a frame structure as described above, and a light source. The light source comprises a lamp panel and a plurality of luminous elements which are arranged on the lamp panel in a matrix, each reflecting part of the inner frame is provided with an opening, and the inner frame is arranged on the lamp panel so that the luminous elements respectively penetrate through the corresponding openings and extend into the corresponding reflecting parts.

The backlight module further comprises an optical unit supported on the inner frame, wherein the inner frame further comprises at least one positioning piece arranged on the frame periphery, and the positioning piece surrounds the periphery of the optical unit.

The backlight module further comprises an optical unit, wherein the optical unit is provided with a plurality of optical films, and the frame surrounding part of the inner frame is provided with a plurality of stepped platforms with different heights for bonding and fixing the optical films of the optical unit.

Another objective of the present utility model is to provide a display device, which includes a backlight module as described above, and a display panel disposed on the backlight module. Each outer frame further comprises a top wall and at least one limiting piece, wherein the top wall is positioned above the frame surrounding part of the inner frame, and the limiting pieces are arranged on the top wall and surround the periphery of the display panel.

The utility model relates to a backlight module, which comprises a light source, a reflecting unit and a plurality of outer frames. The light source comprises a lamp panel and a plurality of luminous elements which are arranged on the lamp panel in a matrix. The reflecting unit comprises a plurality of reflecting parts which are arranged in a matrix, a frame surrounding the reflecting parts, and at least one first joint piece which is arranged on the frame surrounding part and extends along at least a first direction on the peripheral surface of the frame surrounding part, wherein each reflecting part is provided with an opening, and the reflecting unit is arranged on the lamp panel so that the luminous pieces respectively penetrate through the corresponding openings and extend into the corresponding reflecting parts. The outer frames are detachably combined on the reflecting unit along the first direction, so that the reflecting unit is surrounded by the outer frames, each outer frame is provided with at least one second joint piece arranged on the inner peripheral surface of the outer frame, and each outer frame is combined on the reflecting unit by mutually matching the second joint piece and the first joint piece of the reflecting unit in the first direction.

The backlight module further comprises an optical unit, wherein the optical unit is provided with a plurality of optical films, and the frame surrounding part of the reflecting unit is provided with a plurality of stepped platforms with different heights for bonding and fixing the optical films of the optical unit.

The utility model also provides another technical means that the backlight module further comprises an optical unit, wherein the optical unit is supported on the reflecting unit, and the reflecting unit further comprises at least one positioning piece arranged on the frame surrounding part, and the positioning piece surrounds the periphery of the optical unit.

The other technical means of the utility model is that the reflecting unit further comprises a plurality of fixing columns, the fixing columns extend towards the outer frame, and the extending direction of the fixing columns is not parallel to the first direction.

The other technical means of the utility model is that the reflecting unit further comprises a plurality of ribs which are respectively arranged on the outer ring surfaces of the corresponding fixing columns and are radially arranged at intervals, and the ribs extend along the axial direction of the fixing columns and are pressed against the lamp panel.

The other technical means of the utility model is that the lamp panel of the light source is provided with a plurality of openings, and the fixed columns of the reflecting unit are respectively aligned with the openings of the lamp panel.

In another aspect of the utility model, each of the outer frames includes a bottom wall having a plurality of through holes, the through holes respectively correspond to the fixing posts of the reflecting unit, and the fixing posts of the reflecting unit extend into the openings of the lamp panel and do not extend into the through holes of the bottom wall.

Another objective of the present utility model is to provide a display device, which includes a backlight module as described above, and a display panel disposed on the backlight module. Each outer frame further comprises a top wall and at least one limiting piece, wherein the top wall is positioned above the frame surrounding part of the inner frame, and the limiting pieces are arranged on the top wall and surround the periphery of the display panel.

The utility model has the effects that the inner frame is surrounded by the outer frames by detachably combining the outer frames along the first direction through the design of a plurality of outer frames, and the second joint piece and the first joint piece of the inner frame are matched with each other to combine on the inner frame along the first direction, so that the assembly tolerance can be reduced. In addition, the upper frame in the prior art is not needed, so that the number of assembly components can be reduced, the convenience of assembly and reworking is improved, the residue of the wool Bian Yiwu is reduced, and the risk of scratching the membrane and increasing foreign matters during assembly is reduced.

Drawings

FIG. 1 is a perspective exploded view showing a backlight module according to a preferred embodiment of the present utility model;

FIG. 2 is a partial enlarged view illustrating an enlarged view of the box of FIG. 1;

FIG. 3 is an enlarged exploded view illustrating the construction of an inner frame and two outer frames;

FIG. 4 is a partial enlarged view illustrating the structure of the outer frame;

FIG. 5 is a partial cross-sectional view illustrating the combined configuration of the inner frame with a light source and an optical unit;

FIG. 6 is a partial cross-sectional view illustrating the locking of the inner frame to the outer frame;

FIG. 7 is a partial cross-sectional view illustrating the combined configuration of the inner frame and the outer frame; and

Fig. 8 is a schematic diagram of a display device according to a preferred embodiment of the utility model.

Detailed Description

The features and aspects of the present utility model will become apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings. Before proceeding to the detailed description, it should be noted that similar elements are denoted by the same reference numerals. In addition, directional terms mentioned in the following embodiments are, for example: upper, lower, left, right, front, rear, bottom, top, etc., are merely references to the directions of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and is not intended to be limiting of the utility model.

Referring to fig. 1 to 3, a backlight module according to a preferred embodiment of the utility model includes a frame structure 2, a light source 6, and an optical unit 7. The frame structure 2 comprises an inner frame 3 and a plurality of outer frames 4 bonded to the inner frame 3. Referring to fig. 3 and 4, the inner frame 3 has at least one first engaging member 31 disposed on an outer peripheral surface thereof, and the first engaging member 31 extends along at least a first direction X on the outer peripheral surface. The outer frame 4 is detachably coupled to the inner frame 3 along the first direction X, so that the inner frame 3 is surrounded by the outer frame 4. Each outer frame 4 has at least one second engaging member 41 disposed on an inner peripheral surface thereof, wherein each outer frame 4 is coupled to the inner frame 3 by the second engaging member 41 being engaged with the first engaging member 31 of the inner frame 3 in the first direction X. The frame structure 2 is detachably coupled to the inner frame 3 along the first direction X by designing a plurality of outer frames 4 such that the inner frame 3 is surrounded by the outer frames 4, and coupled to the inner frame 3 by coupling each of the outer frames 4 with the second coupling member 41 and the first coupling member 31 of the inner frame 3 to each other in the first direction X, so that assembly tolerance can be reduced. In addition, the upper frame in the prior art is not needed, so that the number of assembly components can be reduced, the convenience of assembly and reworking is improved, the residue of the wool Bian Yiwu is reduced, and the risk of scratching the membrane and increasing foreign matters during assembly is reduced.

Referring to fig. 1 and 2, in the present embodiment, the light source 6 includes a light plate 61 and a plurality of light emitting elements 62 arranged in a matrix on the light plate 61. The inner frame 3 has a reflective unit structure and includes a plurality of reflective portions 32 arranged in a matrix, and a frame portion 33 surrounding the reflective portions 32. Each of the reflecting portions 32 of the inner frame 3 has an opening 321, and the inner frame 3 is disposed on the lamp panel 61 such that the light emitting members 62 respectively pass through the corresponding openings 321 and extend into the corresponding reflecting portions 32 (as shown in fig. 5). Thus, the inner frame 3 is a three-dimensional shaped reflective sheet, or may be referred to as a reflective unit. The optical unit 7 is supported on the inner frame 3 and has a plurality of optical films 71. The frame portion 33 of the inner frame 3 has a plurality of stepped platforms 331 with different heights for adhering and fixing the optical films 71 of the optical unit 7. Wherein the optical film 71 is adhered to the stepped platforms 331 with different heights by lugs 711 with different sizes. By using the stepped platforms 331 with different heights and the lugs 711 with different sizes, the correct optical film 71 and the attaching position thereof can be easily identified, thereby improving the accuracy and effect of the rubberizing operation. Referring to fig. 5, the inner frame 3 further includes a positioning member 34 disposed on the frame portion 33, the positioning member 34 surrounds the periphery of the optical unit 7, and when the optical unit 7 is supported on the frame portion 33 of the inner frame 3, the positioning member 34 can prevent the optical unit 7 from generating lateral displacement, and prevent the optical film 7 from being deflected due to vibration during moving or reliability testing, thereby affecting optical quality. After the inner frame 3, the light source 6 and the optical unit 7 are assembled, the outer frame 4 is combined with the inner frame 3.

Referring to fig. 3 and 4, in more detail, the first engaging member 31 of the inner frame 3 is disposed around the outer peripheral surface of the frame portion 33 and extends along the first direction X and a second direction Y, which is not parallel to the first direction X. The number of the outer frames 4 is two, and each outer frame 4 includes a side wall 42 and a bottom wall 43 connected to the side wall 42. The second connecting member 41 is disposed on an inner peripheral surface of the side wall 42, the side wall 42 and the bottom wall 43 together enclose an accommodating space 40, and the inner frame 3 is accommodated in the accommodating space 40. The first engaging members 31 are in a groove shape, and the second engaging members 41 of each outer frame 4 are in a convex shape, so that the inner frame 3 and the outer frame 4 are assembled in such a manner that the second engaging members 41 slide laterally within the first engaging members 31.

The number of the second engaging members 41 of each outer frame 4 is plural and divided into a first group 41a extending along the first direction X and a second group 41b extending along the second direction Y. Said second engagement members 41 belonging to the first group 41a are capable of sliding in the first direction X in cooperation with said first engagement members 31 of the inner frame 3 until said second engagement members 41 belonging to the second group 41b are positioned in the second direction Y at said first engagement members 31 of the inner frame 3. That is, when the outer frame 4 is to be combined with the inner frame 3, the second engaging members 41 belonging to the first group 41a in the outer frame 4 are slidably assembled along the first direction X, that is, the short side direction of the inner frame 3, so that the second engaging members can be limited in any direction other than the first direction X, and only the first direction X forms a sliding groove engaging form to achieve the sliding effect. Until said second engagement members 41 belonging to the second group 41b are positioned in said first engagement members 31 of the inner frame 3 in the second direction Y, i.e. in the longitudinal direction of the inner frame 3. When the outer frame 4 is completely combined with the inner frame 3, the second joint members 41 of either the first group 41a or the second group 41b are positioned in the first joint members 31 of the inner frame 3. In this way, besides the positioning effect in both the first direction X and the second direction Y, the limiting effect in a third direction Z can be also generated, so as to prevent the outer frame 4 from moving relative to the inner frame 3 in the third direction Z. The method of the assembly operation can effectively reduce the reworking difficulty.

Referring to fig. 6, the inner frame 3 further includes a plurality of fixing posts 35, and a plurality of nuts 36 respectively embedded in the corresponding fixing posts 35. The fixing posts 35 extend toward the bottom wall 43 of the outer frame 4 in the third direction Z. The bottom wall 43 of each outer frame 4 has a plurality of through holes 431, and the light panel 61 of the light source 6 has a plurality of openings 611, and the through holes 431 correspond to the openings 611 of the light panel 61 and the fixing posts 35 of the inner frame 3, respectively. The frame structure 2 further comprises a plurality of locking elements 5 passing through the through holes 431 and corresponding to the locking elements on the nuts 36. When the outer frame 4 is completely combined with the inner frame 3, the through holes 431 of each outer frame 4 are aligned with the fixing posts 35 of the inner frame 3, and the locking members 5 can be correspondingly locked on the nuts 36 in the fixing posts 35, so as to enhance the assembly stability of the outer frame 4 and the inner frame 3. If the outer frame 4 is not completely assembled to the inner frame 3, the through holes 431 cannot be aligned with the fixing posts 35, so that the locking member 5 cannot be locked, which can be used as a basis for determining whether the outer frame 4 is assembled in place.

In addition, the fixing post 35 of the reflecting unit extends into the opening 611 of the lamp panel 61 and does not extend into the through hole 431 of the bottom wall 43 of the outer frame 4, that is, the fixing post 35 does not protrude from the outer frame 4, so that the outer frames 4 are not interfered by the extending direction of the fixing post 35 when being connected in parallel along the first direction X. In this way, the design of the fixing post 35 can be used to align the opening 611 of the lamp panel 61 and provide a significant positioning effect when being clamped. Meanwhile, the inner frame 3 further includes a plurality of ribs 37 respectively disposed on the outer circumferential surface of the corresponding fixing post 35 and arranged at radial intervals, and the ribs 37 extend along the axial direction of the fixing post 35. When the locking member 5 is locked, the rib 37 located on the outer ring surface of the fixing post 35 will press against the lamp panel 61, so as to apply stress to the lamp panel 61, and prevent the lamp panel 61 from warping.

In addition, since the size of the hole 611 of the lamp plate 61 can only accommodate the fixing post 35, the rib 37 cannot pass through, and the protruding length of the rib 37 is slightly smaller than that of the fixing post 35, when the fixing post 35 protrudes into the hole 611 of the lamp plate 61, the rib 37 does not enter the hole 611 together, but contacts and presses against the lamp plate 61, providing the assembling personnel with a proper alignment feeling, and at the same time, the fixing post 35 does not protrude further into the hole 431 of the bottom wall 43, so as to avoid the fixing post 35 from being damaged due to the impact of the fixing post 35 to the bottom wall 431.

Referring to fig. 7, the outer frame 4 is assembled on the inner frame 3.

Referring to fig. 8, a display panel 8 is disposed on the backlight module, which is the display device of the present utility model. Each of the outer frames 4 further includes a top wall 44 and at least one limiting member 45, wherein the top wall 44 is located above the frame portion 33 of the inner frame 3. The display panel 8 is supported on the top wall 44, and the limiting member 45 is disposed on the top wall 44 and surrounds the periphery of the display panel 8 to limit the display panel 8.

The frame structure 2 replaces the upper frame and the back frame in the prior art with the outer frame 4, reduces the number of assembly components, reduces the cost, and also reduces the assembly time of the upper frame, scratches the membrane and increases the risk of foreign matters when the upper frame is assembled from top to bottom. Meanwhile, the design of direct sliding assembly of the inner frame 3 and the outer frame 4 is utilized to replace a structure of clamping with a clamping hook in the prior art, so that assembly tolerance is reduced and a limit fixing structure in a three-dimensional direction can be met. The design can be widely applied to liquid crystal displays, reduces the problems related to assembly and extension, and reduces the cost. Meanwhile, the stability of the backlight module thinning and reliability testing process can be improved, the linkage influence caused by the matching of traditional multiple components is reduced, the cost of the number of the components is reduced, and the related problems caused by the extension of the assembly and the assembly jig are further reduced.

However, the foregoing description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, i.e., the utility model is defined by the appended claims and their description, but rather by the following claims.

[ symbolic description ]

2. Frame structure

3. Inner frame

31. First joint piece

32. Reflection part

321. An opening

33. Frame surrounding part

331. Ladder platform

34. Positioning piece

35. Fixing column

36. Screw cap

37. Rib

4. Outer frame

40. Accommodating space

41. Second joint piece

41a first group

41b second group

42. Side wall

43. Bottom wall

431. Perforation

44. Top wall

45. Limiting piece

5. Locking element

6. Light source

61. Lamp panel

611. Perforating the hole

62. Luminous element

7. Optical unit

71. Optical film

711. Lug boss

8. Display panel

X first direction

Y second direction

And Z is in the third direction.

Claims (19)

1. A frame structure comprising:

an inner frame having at least one first engaging member disposed on an outer peripheral surface thereof, wherein the first engaging member extends in at least a first direction on the outer peripheral surface; and

The outer frames are detachably combined on the inner frame along the first direction, so that the inner frame is surrounded by the outer frames, each outer frame is provided with at least one second joint piece arranged on the inner peripheral surface of the outer frame, and each outer frame is combined on the inner frame by mutually matching the second joint piece and the first joint piece of the inner frame in the first direction.

2. The frame structure of claim 1, wherein each of the outer frames includes a side wall and a bottom wall connected to the side wall, the second engaging member is disposed on an inner peripheral surface of the side wall, the side wall and the bottom wall jointly surround a receiving space, and the inner frame is received in the receiving space.

3. The frame structure of claim 2, wherein the inner frame further comprises a plurality of securing posts extending toward the bottom wall of the outer frame.

4. A frame structure according to claim 3, wherein the inner frame further comprises a plurality of nuts respectively embedded in the corresponding fixing posts, the bottom wall of each outer frame has a plurality of through holes respectively corresponding to the fixing posts of the inner frame, and the frame structure further comprises a plurality of locking elements penetrating the through holes and correspondingly locked on the nuts.

5. The frame structure of claim 1, wherein the first engaging member of the inner frame is in a groove shape and the second engaging member of each of the outer frames is in a rib shape.

6. The frame structure according to claim 1, wherein the first engaging members of the inner frame are disposed around the outer peripheral surface so as to extend in both the first direction and the second direction, the second direction being non-parallel to the first direction, the number of the second engaging members of each of the outer frames being plural and divided into a first group extending in the first direction, and a second group extending in the second direction, the second engaging members belonging to the first group being capable of cooperatively sliding with the first engaging members of the inner frame in the first direction until the second engaging members belonging to the second group are positioned at the first engaging members of the inner frame in the second direction.

7. The frame structure of any one of claims 1 to 6, wherein the inner frame includes a plurality of reflecting portions arranged in a matrix, and a frame surrounding the reflecting portions, and the first engaging member is disposed on an outer peripheral surface of the frame.

8. A backlight module comprising the frame structure of claim 7, and a light source comprising a lamp panel and a plurality of light emitting members arranged on the lamp panel in a matrix, wherein each of the reflecting portions of the inner frame has an opening, and the inner frame is disposed on the lamp panel such that the light emitting members respectively pass through the corresponding openings and extend into the corresponding reflecting portions.

9. The backlight module according to claim 8, further comprising an optical unit supported on the inner frame, wherein the inner frame further comprises at least one positioning member disposed on the frame portion, and the positioning member surrounds the periphery of the optical unit.

10. The backlight module of claim 8, further comprising an optical unit having a plurality of optical films, wherein the peripheral portion of the inner frame has a plurality of stepped platforms with different heights for adhesively securing the optical films of the optical unit.

11. A display device according to any one of claims 8 to 10, comprising a backlight module and a display panel disposed on the backlight module, wherein each of the outer frames further comprises a top wall and at least one limiting member, the top wall is disposed above the periphery of the inner frame, and the limiting member is disposed on the top wall and surrounds the periphery of the display panel.

12. A backlight module is characterized by comprising

The light source comprises a lamp panel and a plurality of luminous elements which are arranged on the lamp panel in a matrix;

the reflecting unit comprises a plurality of reflecting parts which are arranged in a matrix, a frame surrounding the reflecting parts, and at least one first joint piece which is arranged on the frame surrounding part and extends at least along a first direction on the outer peripheral surface of the frame surrounding part, wherein each reflecting part is provided with an opening, and the reflecting unit is arranged on the lamp panel so that the luminous pieces respectively penetrate through the corresponding openings and extend into the corresponding reflecting parts; and

The outer frames are detachably combined on the reflecting unit along the first direction, so that the reflecting unit is surrounded by the outer frames, each outer frame is provided with at least one second joint piece arranged on the inner peripheral surface of the outer frame, and each outer frame is combined on the reflecting unit by mutually matching the second joint piece and the first joint piece of the reflecting unit in the first direction.

13. The backlight module of claim 12, further comprising an optical unit having a plurality of optical films, wherein the frame of the reflective unit has a plurality of stepped platforms of different heights for adhesively securing the optical films of the optical unit.

14. The backlight module according to claim 12, further comprising an optical unit supported on the reflection unit, wherein the reflection unit further comprises at least one positioning member disposed on the frame portion, and the positioning member surrounds the periphery of the optical unit.

15. The backlight module of claim 12, wherein the reflection unit further comprises a plurality of fixing posts, the fixing posts extend toward the outer frame, and the extending direction of the fixing posts is not parallel to the first direction.

16. The backlight module of claim 15, wherein the reflecting unit further comprises a plurality of ribs respectively disposed on the outer circumferential surface of the corresponding fixing post and arranged at radial intervals, and the ribs extend along the axial direction of the fixing post and are pressed against the lamp panel.

17. The backlight module of claim 15, wherein the light panel of the light source has a plurality of openings, and the fixing posts of the reflecting unit are aligned with the openings of the light panel, respectively.

18. The backlight module of claim 17, wherein each of the outer frames comprises a bottom wall having a plurality of through holes, the through holes respectively correspond to the fixing posts of the reflecting unit, and the fixing posts of the reflecting unit extend into the openings of the lamp panel and do not extend into the through holes of the bottom wall.

19. A display device according to any one of claims 12 to 18, comprising a backlight module and a display panel disposed on the backlight module, wherein each of the outer frames further comprises a top wall and at least one limiting member, the top wall is disposed above the frame portion, and the limiting member is disposed on the top wall and surrounds the periphery of the display panel.