CN213183360U

CN213183360U - Backlight module of display

Info

Publication number: CN213183360U
Application number: CN202021927197.0U
Authority: CN
Inventors: 廖国材; 蔡政旻
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2020-01-10
Filing date: 2020-09-07
Publication date: 2021-05-11
Anticipated expiration: 2030-09-07
Also published as: TWM594246U

Abstract

The utility model relates to a display backlight module, it contains inner shell and shell. The inner shell is configured to fix at least one backlight module internal element, and the outer surface of the inner shell is provided with at least one clamping hook. The outer shell is arranged on the outer surface of the inner shell; the shell is provided with at least one clamping opening corresponding to the at least one clamping hook, and at least one side edge of the clamping opening is provided with a stopping rib. The stop rib extends from the inner shell to the outer shell, and the length of the stop rib is not less than the width of the clamping opening. The utility model discloses an foretell predetermined structure to can reach and prevent outside liquid inflow display backlight unit's inside.

Description

Backlight module of display

Technical Field

The utility model relates to a technical field of display, particularly, the utility model relates to an utilize predetermined configuration to prevent outside liquid from flowing into display backlight module's inside display backlight module.

Background

In the prior art, in general, electronic devices are assembled by accommodating electronic components in two housings and then assembling the two housings into a whole. The two housings are usually assembled by screw locking, fastening or fusing (or welding). The screw lock occupies more space inside the housing, and requires more labor and time for assembly. Fusion (or welding) can create subsequent repair problems. Therefore, the assembly is gradually moved to the use of the snap-fit manner in the prior art.

However, most of the snap-fit methods require holes to be formed on the exterior of the housing, and the holes may cause liquid or foreign substances to enter the interior of the device, thereby damaging the internal components. In particular, electronic devices are provided inside the vehicle cabin, such as display devices in front of the driver's seat or between the driver and the passenger seat. Due to the arrangement position, the display device is easy to splash liquid, so that the liquid flows into the display device from the hole. Although, there is a method of attaching a waterproof tape to the hole to seal the hole. However, this is costly and requires a lot of manpower to complete. Furthermore, the waterproof tape is also problematic in that the adhesiveness is reduced after the waterproof tape is used for a certain period of time. Therefore, it is a problem to be solved to provide a liquid-proof electronic device that can prevent liquid from flowing into the electronic device, such as a display device, to ensure the reliability and the service life of the electronic device.

Before summarizing, the utility model discloses a display backlight module to improve to prior art's disappearance, and then promote the implementation in the industry and utilize.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problems, it is an object of the present invention to provide a backlight module for a display device, so as to prevent external liquid from flowing into the backlight module for a display device, thereby improving the problem that the internal components of the backlight module for a display device may be damaged by the external liquid.

In accordance with the above objects, the present invention provides a backlight module for a display, which comprises an inner housing and an outer housing. The inner shell is configured to fix at least one backlight module internal element, and the outer surface of the inner shell is provided with at least one clamping hook. The outer shell is arranged on the outer surface of the inner shell; the shell is provided with at least one clamping opening corresponding to the at least one clamping hook, and at least one side edge of the clamping opening is provided with a stopping rib. The stop rib extends from the inner shell to the outer shell, and the length of the stop rib is not less than the width of the clamping opening.

Preferably, two ends of the stopping rib are respectively provided with an oblique angle part, and the oblique angle parts are positioned on the surface of the stopping rib opposite to the clamping opening.

Preferably, the outer surface of the housing is provided with a groove, and the groove surrounds the engaging opening and at least three sides of the stopping rib.

Preferably, when the display backlight module is disposed on a system bracket, a positioning portion of the system bracket is embedded into the engaging opening or abuts against the stopping rib.

Preferably, three side edges of the clamping opening are respectively provided with a stopping rib; the three stopping ribs form a n-shaped wall part.

Preferably, four sides of the clamping opening are respectively provided with a stopping rib; the four stopping ribs form a square enclosure part.

Preferably, two ends of the stopping rib adjacent to the light-emitting side of the backlight module of the display are respectively provided with an oblique angle part, and the oblique angle parts are positioned on the surface of the stopping rib opposite to the clamping opening.

Preferably, when the display backlight module is disposed on a system bracket, a positioning portion of the system bracket is inserted into and seals the engaging opening.

The utility model discloses a display backlight module, it can have the following advantage at least:

(1) the utility model discloses a display backlight module, its at least one side through the joint has the structural configuration of a backstop rib to can reach the inside that prevents outside liquid inflow display backlight module, and then improve display backlight module's inside component probably because of outside liquid impaired problem.

(2) The utility model discloses a display backlight module, its position through trip and block mouthful corresponds to the location portion of system support to the backstop rib of block mouthful can be used for supplying location portion embedding block mouthful or top to lean on in the backstop rib in the lump, and then reducible overall structure's complexity.

Drawings

Fig. 1 is a schematic cross-sectional view of a display backlight module according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a display backlight module according to a first embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a display backlight module according to a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a display backlight module according to a third embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a display backlight module according to a fourth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a display backlight module according to a fifth embodiment of the present invention;

fig. 7 is a schematic structural diagram of a display backlight module according to a sixth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a display backlight module according to a seventh embodiment of the present invention;

fig. 9 is a schematic structural diagram of an eighth embodiment of a display backlight module according to the present invention.

Description of the symbols

Display backlight module

11: inner shell

111 hook

12: outer casing

121: fastening port

122 stopping rib

123 bevel part

124: groove

125 reinforcing rib

8 inner element of backlight module

9: system support

91 positioning part

911 first positioning part

912 second positioning part

Detailed Description

In order to facilitate understanding of the technical features, contents, advantages and functions achieved by the present invention, the present invention will be described in detail with reference to the accompanying drawings, which are provided for illustration and the function of the auxiliary specification, and not necessarily for true scale and exact configuration after the present invention is implemented, so the scope of the present invention in actual implementation should not be read and limited by the scale and configuration relationship of the attached drawings.

In the drawings, the thickness or width of layers, films, panels, regions, etc. is exaggerated for clarity. Like reference numerals refer to like elements throughout the specification. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" or "disposed on" another element, it can be directly on or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. As used herein, "connected" or "disposed," can refer to a physical and/or electrical connection or arrangement. Further, "electrically connected" or "coupled" may mean that there are additional elements between the elements. Furthermore, the use of the terms first, second and third are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or order relationship.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Please refer to fig. 1 and fig. 2, which are a schematic cross-sectional view and a schematic structural view of a display backlight module according to a first embodiment of the present invention. The display backlight module 1 is applied to a display, such as a vehicle display installed in a vehicle, but not limited thereto. As shown, the display backlight module 1 mainly includes an inner casing 11 and an outer casing 12. Certainly, the display backlight module 1 may further include internal components such as a printed circuit board, a display panel, an optical film or a diffusion plate, which are not important in the present invention and will not be described herein again.

Wherein the inner housing 11 is configured to hold one or more backlight module internal components 8. Wherein, the outer surface of the inner shell 11 has at least one hook 111. The structure, shape, etc. of the hook 111 are well known to those skilled in the art, and will not be described herein. In addition, the number of the hooks 111 is configured according to actual requirements; for example, the number of hooks 111 is configurable to be a little smaller for easy assembly and disassembly, and the number of hooks 111 is configurable to be a little larger for robustness after bonding.

On the other hand, the outer casing 12 is disposed on the outer surface of the inner casing 11, and more specifically, the outer casing 12 covers the outer surface of the inner casing 11 except for the light emitting side. The housing 12 has at least one engaging opening 121 corresponding to the at least one engaging hook 111. That is, the number and the position of the engaging openings 121 correspond to the hooks 111, and the shape of the engaging openings 121 is not particularly limited, but the shape of the engaging openings 121 may have a portion, such as a plane, corresponding to the hooks 111 for the hooks 111 to engage.

It should be noted that at least one side of the engaging opening 121 has a stopping rib 122. The stopping rib 122 extends from the inner shell 11 to the outer shell 12, and the length of the stopping rib 122 is not less than the width of the engaging opening 121. The position of the stopping rib 122 is preferably located at one side of the engaging opening 121 adjacent to the light emitting side of the display backlight module 1; alternatively, the position of the stopping rib 122 may be preferably located on one side of the engaging opening 121, and the one side is opposite to the gravity direction. Therefore, the display backlight module 1 of the present invention can prevent the external liquid from flowing into the display backlight module 1 through the engaging opening 121, thereby improving the problem that the external liquid may cause damage to the components inside the display backlight module 1.

Please refer to fig. 3, which is a schematic structural diagram of a display backlight module according to a second embodiment of the present invention. In the present embodiment, the configuration or connection relationship of the elements is substantially similar to that described above, and the description thereof is omitted here for brevity.

As shown in the figure, in the present embodiment, two ends of the stopping rib 122 are respectively provided with a bevel portion 123, and the bevel portions 123 are located on the surface of the stopping rib 122 opposite to the engaging opening 121. For example, if the engaging opening 121 is located below the stopping rib 122, the bevel portion 123 is located on the surface above the stopping rib 122 and located at two ends of the stopping rib 122; if the engaging opening 121 is located on the left side of the stopping rib 122, the bevel portion 123 is located on the right surface of the stopping rib 122 and located at two ends of the stopping rib 122.

The utility model discloses a display backlight module 1, it then can further prevent liquid from dripping or flowing into block mouth 121 through the setting of above-mentioned bevel portion 123 to enter into display backlight module 1's inside.

In addition, the outer surface of the housing 12 is provided with a groove 124, and the groove 124 partially surrounds the engaging opening 121. The groove 124 surrounds at least three sides of the stopping rib 122 and the engaging opening 121. That is, the trench 124 may be a n-shaped trench. Preferably, the opening direction of the n-shaped groove 124 faces the direction from the stopping rib 122 to the engaging opening 121; alternatively, the opening direction may be toward the gravity direction.

The utility model discloses a display backlight module 1, it is through the configuration of above-mentioned slot 124 to can leading-in liquid to the slot 124 in, and further water conservancy diversion to other departments, and do not get into joint mouth 121. Therefore, the display backlight module 1 of the present invention can better prevent the liquid from flowing into the engaging opening 121, thereby entering into the display backlight module 1. Therefore, the utility model discloses a problem that display backlight module 1 can be perfect prevents that display backlight module 1's backlight module internal component 8 from causing the damage because of liquid.

Please refer to fig. 4, which is a schematic structural diagram of a display backlight module according to a third embodiment of the present invention. In the present embodiment, the configuration or connection relationship of the elements is substantially similar to that described above, and the description thereof is omitted here for brevity.

As shown in the drawings, in the present embodiment, the three sides of the engaging opening 121 can respectively have stopping ribs 122, so that the three stopping ribs 122 can form an n-shaped wall portion.

Further, the three stopping ribs 122 may form an n-shaped wall portion, and the opening direction of the three stopping ribs 122 of the n-shaped wall portion may face the direction from the stopping rib 122 adjacent to the light emitting side to the engaging opening 121; alternatively, the opening direction may be toward the gravity direction. For example, the opening direction of the n-shaped wall portion formed by the three stopping ribs 122 at the top side of the display backlight module 1 can face the rear side of the display backlight module 1, and the opening direction of the n-shaped wall portion formed by the three stopping ribs 122 at the side of the display backlight module 1 can face the lower side of the display backlight module 1.

In various embodiments, the three stopping ribs 122 may form a n-shaped wall, and a groove 124 surrounding the stopping ribs 122 and the engaging opening 121 may be formed around the three stopping ribs 122.

The display backlight module 1 of the present invention can form the arrangement of the n-shaped wall portion by the three stopping ribs 122, so as to guide the liquid to flow out of the display backlight module 1 without entering the engaging opening 121. Wherein, if the groove 124 is further provided, the effect of flow guiding can be further increased. Therefore, the display backlight module 1 of the present invention can better prevent the liquid from flowing into the engaging opening 121, so as to prevent the liquid from entering into the display backlight module 1 and causing the damage of the components.

Please refer to fig. 5, which is a schematic structural diagram of a display backlight module according to a fourth embodiment of the present invention. In the present embodiment, the configuration or connection relationship of the elements is substantially similar to that described above, and the description thereof is omitted here for brevity.

As shown in the drawings, in the present embodiment, the four sides of the engaging opening 121 are respectively provided with the stopping ribs 122, and the four stopping ribs 122 are integrally connected to form a rectangular enclosure.

The four stopping ribs 122 may form a square enclosure surrounding the engaging opening 121. Similarly, the four stopping ribs 122 may also be provided with a groove 124 around the stopping ribs 122 and the engaging opening 121.

In this embodiment, the four stopping ribs 122 may form a square-shaped wall portion, so as to guide the liquid to flow out of the display backlight module 1 without entering the engaging opening 121. Therefore, the display backlight module 1 of the present invention can better prevent the liquid from flowing into the engaging opening 121, so as to prevent the liquid from entering into the display backlight module 1 and causing the damage of the components.

In addition, in the third and fourth embodiments, the two ends of one of the stopping ribs 122 can be respectively provided with the beveled portions 123. The stop rib 122 having the beveled portion 123 may be the stop rib 122 adjacent to the light-emitting side of the display backlight module 1; alternatively, it may be a stop rib 122 with respect to the direction of gravity.

Incidentally, the inner casing 11 and the outer casing 12 may be made of metal or plastic. When the inner shell is made of metal, the inner shell 11 and the outer shell 12 with the above structure can be formed by a die casting process or a sheet metal manufacturing process; when made of plastic material, the inner shell 11 and the outer shell 12 with the above structure can be formed by injection molding process.

Please refer to fig. 6 and 7, which are schematic structural views of fifth and sixth embodiments of a backlight module for a display according to the present invention. In the present embodiment, the configuration or connection relationship of the elements is substantially similar to that described above, and the description thereof is omitted here for brevity.

The positions of the hook 111 and the engaging opening 121 of the backlight module 1 of the present invention can be set corresponding to the positioning portion 91 of the system bracket 9; alternatively, the position of the positioning portion 91 of the system bracket 9 may correspond to the positions of the hook 111 and the engagement opening 121. Therefore, when the display backlight module 1 of the present invention is disposed in the system bracket 9, the positioning portion 91 of the system bracket 9 can be inserted into the engaging opening 121 or abut against the stopping rib 122.

Further, a mode in which the stopper rib 122 is one will be described. When the display backlight module 1 is disposed in the system bracket 9, the positioning portion 91 of the system bracket 9 abuts against the stopping rib 122. The display backlight module 1 and the system bracket 9 can be stably fixed by the limitation of the degree of freedom between the positioning portion 91 and the stopper rib 122. Moreover, the hook 111, the engaging opening 121 and the stopping rib 122 of the engaging opening 121 can be used for the positioning portion 91 to abut against, so that the additional arrangement structure of the housing 12 corresponding to the system bracket 9 can be reduced, and the complexity of the overall structure of the housing 12 can be reduced.

Further, a case where the stop ribs 122 are plural to form the n-shaped wall portion or the square-shaped wall portion will be described. When the backlight module 1 is disposed in the system bracket 9, the positioning portion 91 of the system bracket 9 can be embedded into the space surrounded by the n-shaped wall portion or the square-shaped wall portion formed by the stop rib 122, and can be embedded into the engaging opening 121 together. The display backlight module 1 and the system bracket 9 can be stably fixed by the limitation of the degree of freedom among the positioning part 91, the stopping rib 122 and the clamping port 121. Moreover, the hook 111, the engaging opening 121 and the stopping rib 122 of the engaging opening 121 can be used for the positioning portion 91 to abut against, so that the additional arrangement structure of the housing 12 corresponding to the system bracket 9 can be reduced, and the complexity of the overall structure of the housing 12 can be reduced.

It should be noted that the shape of the engaging opening 121 and the stopping rib 122 forming the enclosing wall may correspond to the positioning portion 91; alternatively, the positioning portion 91 has a shape corresponding to the shape of the engagement opening 121 and the stopper rib 122 forming the fence. Therefore, when the positioning portion 91 is embedded in the engaging opening 121 and the stopping rib 122 forming the enclosing wall, the positioning portion 91 can close the engaging opening 121, as shown in fig. 7.

Please refer to fig. 8, which is a schematic structural diagram of a display backlight module according to a seventh embodiment of the present invention. In the present embodiment, the configuration or connection relationship of the elements is substantially similar to that described above, and the description thereof is omitted here for brevity.

In aspects of the fifth and sixth embodiments, a reinforcing rib 125 may be further disposed on the stopping rib 122. In the present embodiment, the reinforcing rib 125 is added in the sixth embodiment as an example, but it should not be limited thereto. In the present embodiment, the arrangement of the reinforcing rib 125 is utilized to further increase the structural strength of the stopper rib 122, and the stopper rib 122 is less likely to be deformed or damaged by the abutting of the positioning portion 91.

Please refer to fig. 9, which is a schematic structural diagram of an eighth embodiment of a backlight module of a display according to the present invention. In the present embodiment, the configuration or connection relationship of the elements is substantially similar to that described above, and the description thereof is omitted here for brevity.

As shown, in different embodiments, the aspects of the fifth and sixth embodiments can also be applied simultaneously. The first positioning portion 911 is embedded in a space between the stopping rib 122 and the light emitting side, and the second positioning portion 912 is embedded in a space surrounded by the stopping rib 122.

Therefore, the first positioning portion 911 can increase the water blocking effect, and the first positioning portion 911 and the second positioning portion 912 can cooperate with the system bracket 9 to perform positioning during assembly or fixing after assembly.

Therefore, the display backlight module 1 of the present invention can prevent liquid from flowing into the display backlight module 1, and can prevent foreign matters such as chips and dust from entering the display backlight module 1.

The foregoing is by way of example only, and not limiting. It is intended that the appended claims cover all such modifications and variations as fall within the true spirit and scope of this present invention.

Claims

1. A display backlight module, comprising:

the inner shell is configured to fix at least one backlight module internal element, and the outer surface of the inner shell is provided with at least one clamping hook; and

the outer shell is arranged on the outer surface of the inner shell and provided with at least one clamping opening corresponding to the at least one clamping hook, at least one side edge of the clamping opening is provided with a stopping rib, the stopping rib extends from the inner shell to the outer shell, and the length of the stopping rib is not smaller than the width of the clamping opening.

2. The backlight module as claimed in claim 1, wherein the two ends of the stopping rib are respectively provided with an oblique angle portion, and the oblique angle portion is located on the surface of the stopping rib opposite to the engaging opening.

3. The backlight module as claimed in claim 1, wherein the outer surface of the housing is provided with a groove surrounding the engaging opening and at least three sides of the stopping rib.

4. The backlight module as claimed in any one of claims 1 to 3, wherein when the backlight module is disposed in the system bracket, the positioning portion of the system bracket is embedded into the engaging opening or abuts against the stopping rib.

5. The backlight module of claim 1, wherein the stop ribs are formed on three sides of the engaging opening, and the stop ribs form a n-shaped wall.

6. The backlight module of claim 1, wherein the four sides of the engaging opening are respectively provided with the stopping ribs, and the four stopping ribs form a square-shaped wall portion.

7. The display backlight module according to claim 5 or 6, wherein two ends of the stopping rib adjacent to the light-emitting side of the display backlight module are respectively provided with an oblique angle part, and the oblique angle part is located on the surface of the stopping rib opposite to the engaging opening.

8. The backlight module as claimed in claim 5 or 6, wherein the outer surface of the housing is provided with a groove surrounding the engaging opening and at least three sides of the stopping rib.

9. The backlight module of claim 5 or 6, wherein when the backlight module is disposed in the system bracket, the positioning portion of the system bracket is embedded into the engaging opening or abuts against the stopping rib.

10. The display backlight module of claim 6, wherein when the display backlight module is disposed in the system bracket, a positioning portion of the system bracket is inserted into and seals the engaging opening.