CN216434584U

CN216434584U - Back plate structure, display device and electronic equipment

Info

Publication number: CN216434584U
Application number: CN202123042689.9U
Authority: CN
Inventors: 金文学; 赵振; 孙海云
Original assignee: Shenzhen TCL New Technology Co Ltd
Current assignee: Shenzhen TCL New Technology Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-05-03
Anticipated expiration: 2031-12-03

Abstract

The application provides a backboard structure, a display device and electronic equipment, wherein the backboard structure comprises an outer backboard and an inner backboard, the inner backboard is parallel to the outer backboard and is arranged at the inner side of the outer backboard, a plurality of mutually spaced convex ribs are arranged on the inner backboard, and the convex ribs protrude towards the outer backboard and are fixedly connected with the outer backboard; the inner side of the outer back plate is the side of the outer back plate facing the inside of the display device. The application provides an among the backplate structure, interior backplate is on a parallel with outer backplate and sets up in the inboard of outer backplate, through set up many mutual spaced protruding muscle on interior backplate and make protruding muscle towards outer backplate arch and with outer backplate fixed connection for have a plurality of mutual spaced cavity bodies in the middle of the backplate structure that interior backplate and outer backplate constitute, improved the specific stiffness and the specific strength of backplate structure through a plurality of cavity bodies.

Description

Back plate structure, display device and electronic equipment

Technical Field

The application belongs to the technical field of liquid crystal display, and particularly relates to a back plate structure, a display device and electronic equipment.

Background

The lcd is used as a communication interface between a user and information, and has superior characteristics of high space utilization, low electromagnetic interference, no radiation, and the like, so that the lcd becomes a mainstream display mode at present, and is widely used in information communication tools such as televisions, smart phones, tablet computers, and the like. For example, liquid crystal televisions are increasingly occupying the market of home televisions, and become one of standard power distribution equipment for home households.

At present, the liquid crystal display television in the market mainly provides rigidity for the whole machine through a back plate structure, and plays a role in supporting the whole machine. However, with the development of electronic technology, the lcd tv is developing towards a large size, a light weight, a thin weight, and a brief direction, and as the lcd tv becomes larger and thinner, the traditional backplane structure is difficult to meet the requirements of rigidity and strength, and in order to improve the rigidity and strength of the backplane structure, various appearance ribs need to be punched on the backplane, which affects the beauty of the lcd tv. How to provide a back panel structure which can meet the requirements of rigidity and strength and has no appearance rib for the liquid crystal display television becomes a bottleneck of development, so that the search for the back panel structure with higher specific rigidity and specific strength becomes an important challenge and problem.

Therefore, there is a need to provide a new backplane structure to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a backboard structure, a display device and electronic equipment, so that the specific rigidity and the specific strength of the backboard structure of the electronic equipment are improved.

The embodiment of the application provides a back plate structure, which is applied to a display device and is characterized by comprising an outer back plate and an inner back plate, wherein the inner back plate is arranged on the inner side of the outer back plate in parallel with the outer back plate, a plurality of mutually spaced convex ribs are arranged on the inner back plate, and the convex ribs are convex towards the outer back plate and are fixedly connected with the outer back plate; wherein the inner side of the outer back plate is the side of the outer back plate facing the inside of the display device.

Optionally, the rib is integrally formed with the inner back plate by stamping.

Optionally, the outer back plate includes a bottom wall and a side wall adjacent to an edge of the bottom wall, the side wall and the bottom wall form an accommodating space, and the inner back plate is accommodated in the accommodating space.

Optionally, the bottom wall includes a first region and a second region, and the second region is disposed adjacent to the first region; the part of the bottom wall in the first area is arranged flatly, the part of the bottom wall in the second area is provided with a plurality of convex hulls which are spaced mutually, and the convex hulls back to the inner back plate are convex.

An embodiment of the present application further provides a display device, which includes:

a liquid crystal panel;

the backlight module is arranged on the back surface of the liquid crystal panel and comprises a light source and the back plate structure, the light source is arranged in the accommodating space and is positioned on one side of the inner back plate back to the outer back plate, and the light source is used for emitting light; and

the rear shell is arranged on the bottom wall, faces away from one surface of the inner back plate, and the second area is shielded by the rear shell.

Optionally, the first region is disposed near a top end of the display device, and the second region is disposed near a bottom end of the display device.

Optionally, the light source is a light bar, the light bar is arranged close to the side wall, and the light bar is arranged parallel to the bottom wall; the backlight module further comprises a light guide part, the light guide part is parallel to the bottom wall and arranged in the accommodating space, and the light guide part and the light bar are arranged oppositely and used for conducting light rays emitted by one side of the bottom wall to the other side of the bottom wall.

Optionally, the backlight module further comprises a heat dissipation member, and the heat dissipation member is fixedly connected to the inner back plate or the outer back plate; the heat dissipation piece comprises a first portion and a second portion which are connected in a bent mode, the first portion and the second portion are arranged oppositely, the second portion is parallel to the side wall, the second portion and the side wall are arranged adjacently, and the light bar is arranged on one side, back to the side wall, of the second portion.

Optionally, the light source is a lamp panel, the lamp panel is arranged in parallel with the bottom wall, and a plurality of lamp beads are arranged on one surface of the lamp panel, which faces away from the bottom wall; the backlight module further comprises a diffusion sheet, wherein the diffusion sheet is parallel to one side, back to the bottom wall, of the lamp panel, and is used for diffusing light rays emitted by the lamp beads.

An embodiment of the present application further provides an electronic device, which includes a housing and a display device disposed on the housing, where the display device is the display device described in any one of the above.

In the backplate structure that this application embodiment provided, interior backplate is on a parallel with outer backplate and sets up in the inboard of outer backplate, through set up many mutual spaced protruding muscle on interior backplate and make protruding muscle towards outer backplate protruding and with outer backplate fixed connection for have a plurality of mutual spaced cavity bodies in the middle of the backplate structure that interior backplate and outer backplate constitute, improved the specific rigidity and the specific strength of backplate structure through a plurality of cavity bodies.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. In the following description, like reference numerals denote like parts. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of the display device in the electronic apparatus shown in fig. 1, taken along a thickness direction thereof.

Fig. 3 is a partial cross-sectional view of the display device in the electronic apparatus shown in fig. 1, taken along a thickness direction thereof.

FIG. 4 is a schematic view of an inner backplane of the display device shown in FIG. 3.

Fig. 5 is another partial cross-sectional view of the display device in the electronic apparatus shown in fig. 1, taken along a thickness direction thereof.

Fig. 6 is a schematic structural diagram of an external backplane of the display device shown in fig. 5.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the described embodiments are merely exemplary of some, and not all, of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a backboard structure, a display device and electronic equipment, so that the specific rigidity and the specific strength of the backboard structure of the electronic equipment are improved. The following description will be made with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic apparatus according to an embodiment of the present disclosure, and fig. 2 is a cross-sectional view of a display device in the electronic apparatus shown in fig. 1 along a thickness direction thereof. The electronic device 0 may be any product or component with a display function, such as a mobile phone, a navigator, electronic paper, a television, a digital photo frame, a tablet computer, and a notebook computer. The electronic apparatus 0 may include a housing 1 and a display device 2. The display device 2 may be a liquid crystal display device such as a liquid crystal display panel, a liquid crystal display, or a liquid crystal display panel. The display device 2 is mounted on the casing 1 to realize a display function of the electronic apparatus 0. In some embodiments, the display device 2 is also used to implement the touch function of the electronic device 0. For example, when the electronic device 0 is a mobile terminal such as a smart phone or a tablet computer, the display device 2 is used for both displaying and touch-controlling.

It is understood that the structure of the electronic device 0 in the embodiment of the present application is not limited thereto, and the electronic device 0 may further include components (not shown in the figures) such as a cover plate, a main board, a battery, a camera module, a speaker, a sensor, and the like. For the introduction of the cover plate, the main board, the battery, the camera module, the speaker, the sensor and other elements, reference may be made to the description of the above elements in the related art, and details are not repeated here.

The housing 1 may form an outer contour of the electronic device 0. Meanwhile, the case 1 may serve as a protective case for various internal elements of the electronic apparatus 0, preventing the various internal elements of the electronic apparatus 0 from being damaged due to collision, falling, and the like of the electronic apparatus 0. The housing 1 may be integrally formed. In the forming process of the shell 1, structures such as a microphone hole, a loudspeaker hole, a receiver hole, an earphone hole, a USB interface hole, a rear camera hole, a fingerprint identification module mounting hole and the like can be formed on the shell 1.

The housing 1 may be a metal housing, such as a metal of magnesium alloy, stainless steel, etc. It should be noted that the material of the housing 1 in the embodiment of the present application is not limited to this, and other materials may be used. Such as: casing 1 can be the plastic casing, and casing 1 also can be ceramic housing, and casing 1 can also include plastic part and metal part simultaneously, and casing 1 can be the shell structure of metal and plastic mutually supporting. Specifically, the metal part may be formed first, for example, by casting to form a magnesium alloy substrate, and then molding the plastic on the magnesium alloy substrate to form a plastic substrate, so as to form the complete housing structure. It should be noted that the material and process of the housing 1 are not limited to this, and a glass housing may also be used, and the specific material and the specific manufacturing process of the housing 1 are not limited in the embodiments of the present application.

The display device 2 may form an interactive interface of the electronic apparatus 0. The display device 2 includes a liquid crystal panel 21 and a backlight module 22. The liquid crystal panel 21 and the backlight module 22 are stacked, the backlight module 22 is disposed on the back of the liquid crystal panel 21, the backlight module 22 emits light to the liquid crystal panel 21, and the liquid crystal panel 21 regulates the light to achieve the character and image display function of the display device 2.

The description of the liquid crystal panel 21 can be referred to the description of the liquid crystal panel in the related art, and is not repeated here. The back plate structure, the display device and the electronic device provided by the embodiment of the present application will be described below by describing the backlight module 22 in detail.

Referring to fig. 3, fig. 3 is a partial cross-sectional view of the display device of the electronic apparatus shown in fig. 1 along a thickness direction thereof. The backlight assembly 22 may include an outer back plate 221, an inner back plate 222, and a light source 223. The outer back plate 221 and the inner back plate 222 are stacked, and the light source 223 and the inner back plate 222 are both located inside the outer back plate 221. The inner side of the outer back plate 221 is the side of the outer back plate 221 facing the inside of the backlight module 22 (i.e., the inside of the display device 2).

The outer back panel 221 may include a bottom wall 2211 and side walls 2212 adjacent to the edges of the bottom wall 2211. The side wall 2212 can be adjacent to two opposite edges of the bottom wall 2211, and the side wall 2212 can be adjacent to the periphery of the bottom wall 2211. The bottom wall 2211 and the side wall 2212 form an accommodating space 220, and the accommodating space 220 can accommodate components of the backlight module 22 except for the back plate 221, such as the back plate 222 and the light source 223 can be accommodated in the accommodating space 220. The material of the outer back plate 221 may be an electrolytic galvanized steel plate or a hot-dip galvanized steel plate, and the outer back plate 221 may also be other materials.

The bottom wall 2211 and the side wall 2212 may be integrally formed. Specifically, a sheet metal part can be subjected to sheet metal punch forming to obtain the outer back plate 221, the middle part of the sheet material is the bottom wall 2211, and the part bent and connected to the edge of the bottom wall 2211 is the side wall 2212. The side wall 2212 may be disposed perpendicular to the bottom wall 2211, and the side wall 2212 may also be disposed oblique to the bottom wall 2211, and the specific positional relationship between the side wall 2212 and the bottom wall 2211 is not limited in the embodiments of the present application.

The inner back plate 222 is disposed in the accommodating space 220. Specifically, the internal back plate 222 may be disposed in the accommodating space 220 in parallel with the bottom wall 2211. The inner back plate 222 is provided with a plurality of ribs 2220 spaced from each other, and the ribs 2220 protrude toward the bottom wall 2211 and abut against the bottom wall 2211. The material of the inner back plate 222 may be an electrolytic galvanized steel plate or a hot-dip galvanized steel plate, the material of the inner back plate 222 may also be an aluminum alloy or stainless steel, the material of the inner back plate 222 may also be other materials, and the specific material of the inner back plate 222 is not limited in this embodiment of the application.

The ribs 2220 may be directly formed on the inner back plate 222. Specifically, the inner back plate 222 can be obtained by performing sheet metal stamping on a sheet metal part, and the relatively protruding portion is the rib 2220. The rib 2220 may extend in a direction parallel to the top end of the inner back plate 222 toward the bottom end, and the rib 2220 may also extend in a direction parallel to the left side of the inner back plate 222 toward the right side.

Referring to fig. 3 and 4 together, fig. 4 is a schematic structural diagram of an inner back plate of a backlight module in the display device shown in fig. 3. Ribs 2220 on inner back panel 222 are fixedly connected to bottom wall 2211 of outer back panel 221 to fixedly connect inner back panel 222 with outer back panel 221, thereby forming an integral back panel structure. Specifically, the rib 2220 may be fixedly connected to the bottom wall 2211 by welding, so that a plurality of welding points are formed on the rib 2220. Of course, the rib 2220 may also be fixedly connected to the bottom wall 2211 by screwing or gluing, and the rib 2220 may also be fixedly connected to the bottom wall 2211 by other methods. In the embodiment of the present application, the plurality of mutually spaced ribs 2220 protruding toward the outer backplate 221 and fixedly connected to the outer backplate 221 are disposed on the inner backplate 222, so that a plurality of mutually spaced cavity bodies are disposed in the middle of the backplate structure formed by the inner backplate 222 and the outer backplate 221, and the specific stiffness and specific strength of the backplate structure formed by the inner backplate 222 and the outer backplate 221 are improved by the plurality of cavity bodies.

The light source 223 is disposed in the accommodating space 220. Specifically, the light source 223 may be disposed on a side of the internal back plate 222 facing away from the bottom wall 2211. The light source 223 is used to emit light to illuminate the liquid crystal panel 21 of the display device 2.

In the backlight module 22 provided in the embodiment of the present application, the back plate structure of the backlight module 22 includes an inner back plate 222 and an outer back plate 221; the outer back plate 221 includes a bottom wall 2211 and a side wall 2212 adjacent to the edge of the bottom wall 2211, the bottom wall 2211 and the side wall 2212 of the outer back plate 221 enclose to form an accommodating space 220, the inner back plate 222 is parallel to the bottom wall 2211 and is disposed in the accommodating space 220, and a plurality of spaced ribs 2220 are disposed on the inner back plate 222 and protrude toward the bottom wall 2211 of the outer back plate 221 and abut against the bottom wall 2211 of the outer back plate 221, so that a plurality of spaced cavity bodies are disposed in the middle of the back plate structure formed by the inner back plate 222 and the outer back plate 221, and the specific stiffness and the specific strength of the back plate structure of the backlight module 22 are improved by the plurality of cavity bodies.

Wherein, the thickness of the external back plate 221 is greater than that of the internal back plate 222. In order to ensure the specific stiffness and specific strength of the back plate structure formed by the inner back plate 222 and the outer back plate 221, the thickness of the outer back plate 221 should be greater than 0.50 cm, the thickness of the inner back plate 222 should be greater than 0.35 cm, and the height of the rib 2220 on the inner back plate 222 can be set to about 3 mm.

Referring to fig. 5 and 6, fig. 5 is another partial cross-sectional view of the display device in the electronic apparatus shown in fig. 1 along a thickness direction thereof, and fig. 6 is a schematic structural view of an outer back plate of a backlight module in the display device shown in fig. 5. The bottom wall 2211 of the outer back panel 221 may include a first area 22111 and a second area 22112 disposed adjacent to each other, the first area 22111 may be disposed near the top end of the bottom wall 2211 (i.e., the top end of the display device 2), and the second area 22112 may be disposed near the bottom end of the bottom wall 2211 (i.e., the bottom end of the display device 2).

The portion of the bottom wall 2211 located in the first area 22111 is flat, so that the first area 22111 is a flat area; the portion of the bottom wall 2211 within the second area 22112 is provided with a plurality of mutually spaced convex hulls 2210 so that the second area 22112 is a convex hull area. The convex hulls 2210 disposed in the second area 22112 may have different sizes, may also have the same size, may have the same size in some parts, and may have different sizes in some parts.

The convex hull 2210 protrudes away from the inner backplate 222, and the outer backplate 221 is connected with other electronic devices and structural members of the electronic apparatus 0 through the convex hull 2210. In order to shield and protect the second area 22112 of the bottom wall 2211, the display device 2 further comprises a back cover (not shown in the figures). The back cover is disposed on a side of the bottom wall 2211 opposite to the inner back plate 222 and is fixedly connected to the outer back plate 221 for covering and protecting the second area 22112 of the bottom wall 2211.

If the backlight module 22 is a side-in type backlight module, the light source 223 is a light bar, and may be an LED light bar. The light bar sets up parallel to diapire 2211, and the light bar sets up near the lateral wall 2212 that is located a diapire 2211 side limit. In order to conduct the light emitted from the light bar at one side edge of the bottom wall 2211 to the opposite side edge of the bottom wall 2211, the backlight module 22 may further include a light guide 224. The light guide 224 is disposed in the accommodating space 220 parallel to the bottom wall 2211, and the light guide 224 is disposed opposite to the light bar for guiding light emitted by the light bar.

In some embodiments, the light guide 224 may include a light guide plate and a reflective sheet. The light guide plate and the reflective sheet are stacked along the thickness direction of the backlight module 22, and the reflective sheet is disposed between the light guide plate and the inner back plate 222. In some embodiments, the light guide 224 may also be composed of other deformed structures with light guiding function, such as a light guiding cavity formed by two upper and lower reflective sheets disposed opposite to each other. The embodiment of the present application does not limit the specific structure of the light guide 224.

With continued reference to fig. 5, the backlight module 22 may further include a heat sink 225. Heat sink 225 is disposed on a side of back panel 222 facing away from back panel 221 and is fixedly attached to back panel 222 or back panel 221, such as sidewall 2212 of back panel 221.

Heat spreader 225 may include first 2251 and second 2252 portions connected by a bend. Where the first portion 2251 is disposed parallel to the bottom wall 2211 of the outer backplane 221 and the first portion 2251 is disposed opposite the second area 22112 of the bottom wall 2211, the first portion 2251 may be used to dissipate heat from electronic devices disposed on the convex hull 2210 of the second area 22112. Second portion 2252 is disposed parallel to side wall 2212 of exterior back panel 221 and second portion 2252 is disposed adjacent to side wall 2212, and second portion 2252 may be used to dissipate heat from the light bar. Specifically, the light bar can be disposed on a side of the second portion 2252 facing away from the sidewall 2212 of the outer back panel 221.

If the backlight module 22 is a direct-type backlight module, the light source 223 is a lamp panel, and may be a mini LED lamp panel. The lamp plate is parallel to diapire 2211 and sets up, and is provided with a plurality of mutual spaced lamp pearls on the lamp plate dorsad diapire 2211's one side. In order to diffuse the light emitted from the fixed position of the lamp beads on the lamp panel to the whole surface of the lamp panel back to the bottom wall 2211, the backlight module 22 may further include a diffusion sheet (not shown in the figure). The diffusion piece is parallel to the lamp plate and sets up in the lamp plate one side of diapire 2211 dorsad for the light that diffusion lamp pearl sent.

In the embodiment of the present application, the display device 2 may further include a middle frame 23. The middle frame 23 may be directly mounted on the outer back panel 221 of the backlight module 22. Specifically, the middle frame 23 is mounted on the side wall 2212 of the outer back panel 221, and the liquid crystal panel 21 of the display device 2 is mounted on the middle frame 23.

In some embodiments, the display device 2 may include only the liquid crystal panel 21 and the backlight module 22 without the middle frame 23. The liquid crystal panel 21 of the display device 2 is mounted on the external back panel 221 of the backlight module 22. Specifically, the side of the liquid crystal panel 21 is connected to the side wall 2212 of the external back panel 221.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The backplane structure, the display device and the electronic device provided in the embodiments of the present application are introduced in detail, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the embodiments is only used to help understand the method and the core idea of the present application; for those skilled in the art, based on the idea of the present application, the embodiments and the application scope may be changed, and in summary, the content of the present specification should not be construed as limiting the present application.

Claims

1. A backboard structure is applied to a display device and is characterized by comprising an outer backboard and an inner backboard, wherein the inner backboard is parallel to the outer backboard and arranged on the inner side of the outer backboard, a plurality of mutually spaced convex ribs are arranged on the inner backboard, and the convex ribs protrude towards the outer backboard and are fixedly connected with the outer backboard; the inner side of the outer back plate is the side of the outer back plate facing the inside of the display device.

2. A backplate structure according to claim 1 in which the ribs are formed integrally with the inner backplate by stamping.

3. The back plate structure of claim 1 or 2, wherein the outer back plate comprises a bottom wall and a side wall adjacent to an edge of the bottom wall, the side wall and the bottom wall define an accommodating space, and the inner back plate is accommodated in the accommodating space.

4. A backplate structure according to claim 3, wherein the bottom wall comprises a first region and a second region, the second region being disposed adjacent to the first region; the part of the bottom wall in the first area is arranged flatly, the part of the bottom wall in the second area is provided with a plurality of convex hulls which are spaced mutually, and the convex hulls back to the inner back plate are convex.

5. A display device, comprising:

a liquid crystal panel;

the backlight module is arranged on the back surface of the liquid crystal panel and comprises a light source and the back plate structure as claimed in claim 4, wherein the light source is arranged in the accommodating space and is positioned on one side of the inner back plate back to the outer back plate, and the light source is used for emitting light; and

6. The display device according to claim 5, wherein the first region is disposed near a top end of the display device and the second region is disposed near a bottom end of the display device.

7. The display device according to claim 5 or 6, wherein the light source is a light bar, the light bar is disposed adjacent to the side wall, and the light bar is disposed parallel to the bottom wall; the backlight module further comprises a light guide part, the light guide part is parallel to the bottom wall and arranged in the accommodating space, and the light guide part and the light bar are arranged oppositely and used for conducting light rays emitted by one side of the bottom wall to the other side of the bottom wall.

8. The display device according to claim 7, wherein the backlight module further comprises a heat dissipation member fixedly connected to the inner back plate or the outer back plate; the heat dissipation piece comprises a first portion and a second portion which are connected in a bent mode, the first portion and the second portion are arranged oppositely, the second portion is parallel to the side wall, the second portion and the side wall are arranged adjacently, and the light bar is arranged on one side, back to the side wall, of the second portion.

9. The display device according to claim 5 or 6, wherein the light source is a lamp panel, the lamp panel is arranged in parallel with the bottom wall, and a plurality of lamp beads are arranged on one surface of the lamp panel opposite to the bottom wall; the backlight module further comprises a diffusion sheet, wherein the diffusion sheet is parallel to one side, back to the bottom wall, of the lamp panel, and is used for diffusing light rays emitted by the lamp beads.

10. An electronic apparatus, comprising a housing and a display device provided in the housing, wherein the display device is the display device according to any one of claims 5 to 9.