CN214795498U - Back plate, frame structure, backlight module and display device - Google Patents

Abstract

The present disclosure provides a back plate for assembling with a middle frame to form a frame structure, the middle frame includes a bearing structure having a bearing surface, the bearing surface is used for bearing a display panel, the back plate includes: the bottom plate and by the lateral wall that the edge bending type of bottom plate formed, the lateral wall be used for with the center assembles, be formed with first bearing structure on the bottom plate, first bearing structure is used for supporting bearing structure. According to the technical scheme, the first supporting structure is formed on the bottom plate, the first supporting structure can play a role of supporting the bearing structure in the middle frame after the assembly of the back plate and the middle frame is completed, and the stress deformation of the bearing structure can be effectively avoided, so that the overall bearing stability of the bearing structure can be improved, and the combination firmness between the display panel and the bearing structure can be further ensured.

Description

Back plate, frame structure, backlight module and display device

Technical Field

The disclosure relates to the technical field of display, in particular to a back plate, a frame structure, a backlight module and a display device.

Background

With the development of the television industry, a full screen gradually becomes a trend, and an ultrahigh screen occupation ratio can present a wider visual field in a specific screen size, so that a user can have a shocking visual experience.

The lcd panel does not emit light, and thus needs a backlight module to provide light. At present, the main components of the backlight module include a frame structure, and an optical module and a light source fixed in the frame structure, where the frame structure includes a back plate and a middle frame, and the middle frame includes a bearing structure for bearing a display panel.

SUMMERY OF THE UTILITY MODEL

The disclosure provides a back plate, a frame structure, a backlight module and a display device.

In a first aspect, the present disclosure provides a back plate for assembling with a middle frame to form a frame structure, the middle frame including a bearing structure having a bearing surface, the bearing surface being used for bearing a display panel, the back plate including: the bottom plate and by the lateral wall that the edge bending type of bottom plate formed, the lateral wall be used for with the center assembles, be formed with first bearing structure on the bottom plate, first bearing structure is used for supporting bearing structure.

In some embodiments, the first supporting structure is further configured to cooperate with a side of the supporting structure facing away from the supporting surface to clamp and fix an optical module configured to the display panel.

In some embodiments, the first support structure is formed by bending a partial region of the base plate, and the first support structure is reused as a reinforcing rib.

In some embodiments, the first support structure has a cross-sectional shape perpendicular to a cross-section of the base plate in a "chevron" shape.

In some embodiments, a side surface of the first support structure away from the bottom plate is a plane and has a width of 2mm or less.

In some embodiments, a second supporting structure is disposed on a side of the carrying structure opposite to the carrying surface;

an accommodating groove is defined between the first support structure and the side wall and is used for accommodating and supporting the second support structure.

In a second aspect, embodiments of the present disclosure provide a frame structure, including: the back plate and the middle frame assembled with the back plate are provided by the first aspect.

In some embodiments, the middle frame comprises a bearing structure, and the width w2 of the bearing surface on the bearing structure is more than 0.5mm and less than 6 mm.

In some embodiments, the middle frame further comprises: the bearing structure is positioned on the main body structure and is integrally formed with the main body structure;

the main body structure is assembled and fixed with the side wall in the back plate.

In a third aspect, an embodiment of the present disclosure provides a backlight module, including: the frame structure as provided in the second aspect above.

In some embodiments, the backlight module further comprises: an optical module;

the optical module is positioned between the first supporting structure and the bearing structure, and the first supporting structure and one side of the bearing structure, which is back to the bearing surface, are matched to clamp and fix the optical module.

In a fourth aspect, an embodiment of the present disclosure further provides a display device, including: the backlight module and the display panel fixed on the bearing surface provided by the third aspect are provided.

Drawings

Fig. 1 is a schematic cross-sectional view of a display device according to the related art;

FIG. 2 is a schematic diagram of a display device according to the present disclosure;

FIG. 3 is a schematic sectional view taken along line A-A' of FIG. 2;

FIG. 4 is a schematic cross-sectional view of a back plate provided in the embodiments of the present disclosure;

FIG. 5 is a schematic cross-sectional view of a frame structure provided by an embodiment of the present disclosure;

FIG. 6 is a schematic cross-sectional view of a frame structure provided by an embodiment of the present disclosure;

fig. 7 is a schematic cross-sectional view of a backlight module according to an embodiment of the disclosure;

fig. 8 is another schematic cross-sectional view of a backlight module according to an embodiment of the disclosure.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present disclosure, the back plate, the frame structure, the backlight module and the display device provided in the present disclosure are described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic cross-sectional view of a display device according to a related art, as shown in fig. 1, the display device including: frame construction 8 and display panel 3, frame construction 8 includes backplate 1 and center 2, and backplate 1 includes: a base plate 101 (for carrying a light source, generally in a planar arrangement) and side walls 102, the middle frame 2 comprising: a body structure 201 and a load-bearing structure 202. The supporting structure 202 is configured to support and fix the display panel 3, specifically, the display panel 3 includes a display area and an edge area (the edge area does not display a picture) surrounding the display area, and the edge area of the display panel 3 is fixed on the supporting surface through the double-sided tape 4.

With the development of the full-screen technology, the width of the edge region on the display panel 3 becomes narrower and narrower, and if the width of the supporting structure 202 is kept unchanged, after the display panel 3 and the supporting surface of the supporting structure 202 are fixed, the supporting structure 202 and the double-sided tape 4 may intrude into the display region of the display panel 3, which affects the display effect. If the width of the supporting structure 202 is reduced to prevent the supporting structure 202 and the double-sided tape 4 from intruding into the display area of the display panel 3, at this time, the supporting structure 202 is easily deformed by stress (for example, the supporting structure 202 is deformed downward when the display panel 3 presses the supporting structure 202), so that the double-sided tape 4 between the supporting surface and the display panel 3 fails, and the display panel 3 is separated, that is, the supporting stability of the supporting structure 202 is low.

In order to solve at least one technical problem in the related art, the present disclosure provides a corresponding technical solution, which will be described in detail with reference to specific embodiments.

Fig. 2 is a schematic structural diagram of a display device according to the present disclosure, and fig. 3 is a schematic sectional diagram taken along a direction a-a' in fig. 2. As shown in fig. 2 and 3, the display device includes: the backlight module comprises a frame structure 8, an optical module 5 and a light source (not shown), the frame structure 8 comprises a back plate 1 and a middle frame 2, the back plate 1 and the middle frame 2 are assembled and fixed, the middle frame 2 comprises a main body structure 201 and a bearing structure 202, and the display panel 3 is fixed on the bearing surface of the bearing structure 202; the light module includes a light guide plate 6 and an optical film 7 (which may also include a diffuser plate, etc.), and is fixed in the frame structure 8.

In some embodiments, the side surface of the light guide plate 6 may be a light incident surface, and the light source is a side incident light source, and the lower surface of the light guide plate 6 may be provided with a reflective film to increase the light emitting amount on the upper surface of the light guide plate 6; in other embodiments, the lower surface of the light guide plate 6 is a light incident surface, and the light source is a direct-type light source, and a reflective film may be disposed on the side surface of the light guide plate 6 to increase the light output amount of the upper surface of the light guide plate 6. Both of these cases fall within the scope of the present disclosure.

Fig. 4 is a schematic cross-sectional view of a back plate according to an embodiment of the disclosure. As shown in fig. 2 to 4, the present disclosure provides a back panel 1, where the back panel 1 is configured to be assembled with a middle frame 2 to form a frame structure 8, the middle frame 2 includes a bearing structure 202 having a bearing surface, and the bearing surface is configured to bear a display panel 3, and the back panel 1 includes: a bottom plate 101 and a side wall 102 formed by bending the edge of the bottom plate 101, wherein the side wall 102 is used for assembling with the middle frame 2, a first supporting structure 103 is formed on the bottom plate 101, and the first supporting structure 103 is used for supporting a bearing structure 202.

In this embodiment of the disclosure, by forming the first supporting structure 103 on the bottom plate 101, the first supporting structure 103 can play a role of supporting the bearing structure 202 in the middle frame 2 after the assembly of the back plate 1 and the middle frame 2 is completed, and the bearing structure 202 can be effectively prevented from stress deformation, so that the overall bearing stability of the bearing structure 202 can be improved, and the combination firmness between the display panel 3 and the bearing structure 202 can be ensured.

It should be noted that, in the embodiment of the present disclosure, the first supporting structure 103 supports the bearing structure 202 is not limited to the first supporting structure 103 directly contacting the bearing structure 202 to support the bearing structure 202, and the first supporting structure 103 may contact the bearing structure 202 through another structure to support the bearing structure 202, and the bearing structure 202 will be supported later with reference to a specific example.

In some embodiments, the first supporting structure 103 is formed by bending a partial region on the bottom plate 101, and the first supporting structure 103 is used as a reinforcing rib to improve the overall strength and rigidity of the backboard 1, so as to effectively prevent the backboard 1 from being deformed by stress.

Further, the first support structure 103 has a cross-sectional shape perpendicular to the cross-section of the base plate 101 in a "zigzag" shape. The reinforcing rib structure in the shape of a Chinese character 'ji' can improve the strength and rigidity of the whole backboard 1 on one hand, and on the other hand, the top (the surface on the side far away from the bottom board 101) is flat, which is beneficial to providing stable support. In some embodiments, a side surface of the first supporting structure 103 away from the bottom plate 101 is a plane and has a predetermined width w 1; however, if the width w1 is too large, the strength and rigidity of the entire back plate 1 are reduced; in some embodiments, the width w1 satisfies 0 < w1 ≦ 2 mm.

In some embodiments, a second support structure 203 is disposed on a side of the supporting structure 202 facing away from the supporting surface; a receiving groove 104 is defined between the first support structure 103 and the side wall 102, and the receiving groove 104 is used for receiving and supporting the second support structure 203; the details will be described later with reference to the drawings.

In some embodiments, the first supporting structure 103 is further configured to cooperate with a side of the supporting structure 202 opposite to the supporting surface to clamp and fix the optical module 5 configured on the display panel 3, and at this time, the first supporting structure 103 supports the supporting structure 202 through the optical module 5; the details will be described later with reference to the drawings.

The back plate 1 provided by the embodiment of the present disclosure may be a unitary structure, and the material thereof may be a metal material (e.g., aluminum), and specifically, the back plate 1 may be prepared by a metal stamping process.

Fig. 5 is a schematic cross-sectional view of a frame structure according to an embodiment of the present disclosure. As shown in fig. 5, the present embodiment also provides a frame structure 8, where the frame structure 8 includes a back plate 1 and a middle frame 2; the back plate 1 is the back plate 1 provided in the above embodiments, and specific contents may refer to those in the foregoing embodiments, which are not described herein again.

The middle frame 2 includes: a body structure 201 and a load bearing structure 202 located on the body structure 201. The main body structure 201 is used for assembling and fixing with the side wall 102 of the back plate 1, for example, fixing by a snap-fit method, fixing by screws, and the like.

In some embodiments, the width w2 of the bearing surface on the bearing structure 202 satisfies 0.5mm ≦ w2 ≦ 6 mm.

The width of the supporting surface on the supporting structure 202 may be designed according to the width of the edge region of the display panel 3, and generally, the width of the supporting surface is slightly smaller than the width of the edge region of the display panel 3. Considering that the width of the edge region of the conventional display panel 3 is in the range of 0.6mm to 6mm, in some embodiments, the width w2 of the carrying surface on the carrying structure 202 satisfies 0.5mm ≦ w2 ≦ 6 mm.

In some embodiments, the load bearing structure 202 is integrally formed with the body structure 201. Optionally, the whole middle frame 2 is an integrally molded structure, the material of the middle frame 2 includes plastic, and the middle frame 2 can be prepared by an injection molding process.

In some embodiments, in the middle frame 2, a second support structure 203 is disposed on a side of the bearing structure 202 facing away from the bearing surface; in the back plate 1, a receiving groove 104 is defined between the first supporting structure 103 and the side wall 102; the accommodating groove 104 is used for accommodating the second supporting structure 203, and simultaneously the height of the second supporting structure 203 is reasonably set so that the bottom of the second supporting structure 203 contacts with the bottom (bottom plate 101) of the accommodating groove 104, namely the bottom of the accommodating groove 104 can support the second supporting structure 203, and at the moment, the second supporting structure 203 can also play a role in supporting the bearing structure 202, so that the overall bearing stability of the bearing structure 202 can be further improved.

In the situation shown in fig. 5, the first support structure 103 is in direct contact with the load bearing structure 202 to support the load bearing structure 202.

Fig. 6 is a schematic cross-sectional view of a frame structure according to an embodiment of the present disclosure. As shown in fig. 6, unlike the case shown in fig. 5, in the case shown in fig. 6, a certain accommodating space 9 exists between the top of the first supporting structure 103 and the carrying structure 202, the accommodating space 9 is used for clamping and fixing the optical module 5 between the first supporting structure 103 and the carrying structure 202, and at this time, the first supporting structure 103 supports the carrying structure 202 through the optical module 5.

Fig. 7 is a schematic cross-sectional view of a backlight module according to an embodiment of the disclosure, and fig. 8 is a schematic cross-sectional view of another backlight module according to an embodiment of the disclosure. As shown in fig. 7 and fig. 8, an embodiment of the present disclosure further provides a backlight module, where the backlight module includes a frame structure 8, the frame structure 8 is the frame structure 8 provided in the foregoing embodiment, and for specific description of the frame structure 8, reference may be made to the content in the foregoing embodiment, which is not described herein again.

In some embodiments, the backlight module further includes an optical module 5, the optical module 5 at least includes a light guide plate 6 and an optical film 7 (which may also include a diffuser plate, etc.), and the light module is fixed in the frame structure 8.

Referring to fig. 7, in some embodiments, the first supporting structure 103 is in direct contact with the carrying structure 202, and the optical module 5 can be fixed on the back plate 1. Referring to fig. 8, a certain receiving space exists between the top of the first supporting structure 103 and the supporting structure 202, the optical module 5 is located between the first supporting structure 103 and the supporting structure 202, and the first supporting structure 103 and a side of the supporting structure 202 facing away from the supporting surface cooperate to clamp and fix the optical module 5.

It should be noted that the backlight module in the embodiments of the present disclosure further includes a light source, and the light source may be a direct light source or a side light source.

Based on the same inventive concept, an embodiment of the present disclosure further provides a display device, as shown in fig. 3, the display device includes a backlight module and a display panel 3, the backlight module adopts the backlight module provided in the above embodiment, and for the specific description of the backlight module, reference may be made to the contents in the foregoing embodiment, which is not described herein again. The display panel 3 can be fixed on the carrying surface by an adhesive structure (e.g. double-sided tape 4 or fixing glue).

It should be noted that the backlight module in the display device shown in fig. 3 is only used for exemplary purposes for the case shown in fig. 8, and does not limit the technical solution of the present disclosure. In some embodiments, the backlight module in the display device shown in fig. 3 may be replaced with the one shown in fig. 7, and this technical solution also falls within the scope of the present disclosure.

The display device in the embodiments of the present disclosure may be: the display device comprises any product or component with a display function, such as a liquid crystal display, electronic paper, a mobile phone, a tablet personal computer, a television, a notebook computer, a digital photo frame, a navigator and the like.

According to the technical scheme, the first supporting structure is formed on the bottom plate, the first supporting structure can play a role of supporting the bearing structure in the middle frame after the assembly of the back plate and the middle frame is completed, and the stress deformation of the bearing structure can be effectively avoided, so that the overall bearing stability of the bearing structure can be improved, and the combination firmness between the display panel and the bearing structure can be further ensured.

It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.

Claims (12)

1. A backplane for assembly with a mid-frame to form a frame structure, the mid-frame comprising a load-bearing structure having a load-bearing surface for bearing a display panel, the backplane comprising: the middle frame is characterized in that a first supporting structure is formed on the bottom plate and used for supporting the bearing structure.

2. The backplate of claim 1, wherein the first support structure is further configured to cooperate with a side of the support structure facing away from the support surface to hold an optical module configured to fix the display panel.

3. A backboard according to claim 1, wherein the first support structure is formed by bending a part of the area on the bottom board, and the first support structure is reused as a reinforcing rib.

4. A backplate according to claim 3 in which the cross-sectional shape of the first support structure in a section perpendicular to the base plate is "zig-zag".

5. A backplate according to claim 4 in which the surface of the first support structure on the side remote from the backplate is planar and has a width of 2mm or less.

6. The backing plate of claim 1 wherein a side of the carrying structure facing away from the carrying surface is provided with a second support structure;

an accommodating groove is defined between the first support structure and the side wall and is used for accommodating and supporting the second support structure.

7. A frame structure, comprising: a backplate as claimed in any one of claims 1 to 6 and a middle frame assembled with the backplate.

8. The frame structure of claim 7, wherein the center frame includes a load bearing structure having a load bearing surface with a width of 0.5mm or more and 6mm or less.

9. The frame structure according to claim 7 or 8, wherein the middle frame further comprises: the bearing structure is positioned on the main body structure and is integrally formed with the main body structure;

the main body structure is assembled and fixed with the side wall in the back plate.

10. A backlight module, comprising: a frame structure as claimed in any one of claims 7 to 9.

11. A backlight module according to claim 10, further comprising: an optical module;

the optical module is positioned between the first supporting structure and the bearing structure, and the first supporting structure and one side of the bearing structure, which is back to the bearing surface, are matched to clamp and fix the optical module.

12. A display device, comprising: the backlight module as claimed in claim 10 or 11, and a display panel fixed on the supporting surface.

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