TWM594246U - Back light module of display device - Google Patents

Abstract

This creation discloses a display backlight module, which includes an inner shell and an outer shell. Wherein, the inner shell is configured to fix at least one internal component of the backlight module, and the outer surface of the inner shell has at least one hook. The outer shell is disposed on the outer surface of the inner shell; the outer shell has at least one engaging opening corresponding to at least one hook, and at least one side of the engaging opening has a stop rib. The stop rib extends from the inner shell toward the outer shell, and the length of the stop rib is not less than the width of the engaging opening. The original structure can prevent external liquid from flowing into the interior of the display backlight module by the above-mentioned predetermined structure.

Description

Display backlight module

This creation relates to the technical field of a display. Specifically, this creation relates to a display backlight module that uses a predetermined structure to prevent external liquid from flowing into the display backlight module.

At present, most of the assembly of general electronic devices is to put two housings into electronic components, and then assemble the two housings into a whole. However, the assembly between the two housings is mostly achieved by screw locking, snapping, or fusion (or fusion). Among them, screw locking will occupy more space inside the housing, and requires more labor and time to assemble. And fusion (or fusion) will cause subsequent maintenance problems. Therefore, the current trend is gradually to use the buckle to assemble.

However, most of the buckle methods need to create a hole outside the casing, and this hole may cause a problem that liquid or foreign bodies enter the device and damage the internal components. In particular, an electronic device provided inside the vehicle interior, such as a display device in front of the driver's seat or between the driver and the co-pilot. Due to the relationship of the installation position, the display device is easily splashed into the liquid, so that the liquid flows into the inside of the display device from the hole. Although, one method is to stick waterproof tape on the hole to close the hole. However, this method takes more cost and requires more manpower to complete. Moreover, the waterproof adhesive tape may also have a doubt that the adhesiveness will decrease after a period of use. Therefore, how to provide a device that can prevent liquid from flowing into the interior of an electronic device such as a display device to ensure the reliability and service life of the electronic device is a major problem that needs to be solved.

In view of the foregoing, the creator of this creation has designed a display backlight module to improve the lack of existing technology, thereby enhancing the implementation and utilization of the industry.

In view of the above-mentioned problems of the prior art, the purpose of this creation is to provide a display backlight module to prevent external liquid from flowing into the display backlight module, thereby improving the internal components of the display backlight module may be due to external Liquid damage.

According to the above purpose, the present invention provides a display backlight module including an inner shell and an outer shell. Wherein, the inner shell is configured to fix at least one internal component of the backlight module, and the outer surface of the inner shell has at least one hook. The outer shell is disposed on the outer surface of the inner shell; the outer shell has at least one engaging opening corresponding to at least one hook, and at least one side of the engaging opening has a stop rib. The stop rib extends from the inner shell toward the outer shell, and the length of the stop rib is not less than the width of the engaging opening.

Preferably, both ends of the stop rib are respectively provided with a beveled portion, and the beveled portion is located on the surface of the stop rib opposite to the engaging opening.

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

Preferably, when the display backlight module is installed on a system support, a positioning portion of the system support is embedded in the snap opening or abuts against the stop rib.

Preferably, the three sides of the engaging opening respectively have stop ribs; the three stop ribs form a zigzag-shaped wall part.

Preferably, the four sides of the engaging opening respectively have stop ribs; the four stop ribs form a mouth-shaped wall portion.

Preferably, two ends of the stop rib adjacent to the light exit side of the display backlight module are respectively provided with an oblique angle portion, and the oblique angle portion is located on the surface of the stop rib opposite to the engaging opening.

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

Preferably, when the display backlight module is installed on a system support, a positioning portion of the system support is embedded in the snap opening or abuts against the stop rib.

Preferably, when the display backlight module is installed on a system support, a positioning portion of the system support is embedded and closes the engaging opening.

The display backlight module of this invention can have at least the following advantages: (1) The display backlight module of the present invention has a structure with a stop rib on at least one side of the engaging opening, so as to prevent external liquid from flowing into the interior of the display backlight module, thereby improving the display backlight module The internal components of the group may be damaged due to the external liquid. (2) The display backlight module of the invention corresponds to the positioning part of the system bracket by the position of the hook and the snap opening, so that the stop rib of the snap opening can be used together for the positioning portion to be embedded in the snap opening or against the The stop ribs can further reduce the complexity of the overall structure.

In order to better understand the technical characteristics, content and advantages of this creation and the achievable effects, the creation is accompanied by the drawings, and the expressions of the embodiments are described in detail below. The purpose of the drawings used is only In order to illustrate and supplement the function of the manual, it may not be the true proportion and accurate configuration after the implementation of the creation, so it should not be interpreted and limited to the relationship between the proportion and configuration of the attached drawings, and the scope of rights of the actual implementation of the creation is limited. First clarify.

In the drawings, for the sake of clarity, the thickness or width of layers, films, panels, regions, etc. are exaggerated. Throughout the specification, the same reference numerals denote the same elements. It should 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 the other element or be connected to another element. An element is connected, or an intermediate element 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, "connection" or "setting" may refer to physical and/or electrical connection or setting. Furthermore, "electrical connection" or "coupling" may be that there are other elements between the two elements. In addition, the use of the terms "first", "second", and "third" are for descriptive purposes only, and cannot be understood as indicating or implying relative importance or their order.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the meanings commonly understood by those of ordinary knowledge in the technical field to which this creation belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology and this creation, and will not be interpreted as idealized or excessive Formal meaning unless explicitly defined in this article.

Please refer to FIG. 1 and FIG. 2, which are a schematic cross-sectional view and a structural view of a first embodiment of a display backlight module created in accordance with the invention. Among them, the display backlight module 1 is applied to a display, such as a car display installed in a car, but it is not limited thereto. As shown in the figure, the display backlight module 1 mainly includes an inner casing 11 and an outer casing 12. Of course, 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 is not the focus of this creation and will not be repeated here.

The inner casing 11 is configured to fix one or more internal components 8 of the backlight module. The outer surface of the inner shell 11 has at least one hook 111. Regarding the hook 111, its structure, shape, etc. are well known to those with ordinary knowledge in the technical field, and will not be repeated here. In addition, the number of hooks 111 can be configured according to actual needs; for example, in order to facilitate assembly and disassembly, the number of hooks 111 can be configured a little less, and for the stability of the combination, the hooks 111 The quantity can be configured a little more.

On the other hand, the outer casing 12 is provided on the outer surface of the inner casing 11. In more detail, the outer casing 12 covers the outer surface of the inner casing 11 except the light exit side. Wherein, the housing 12 has at least one engaging opening 121 corresponding to at least one hook 111. In other words, the number and position of the engaging opening 121 will correspond to the hook 111, and the shape of the engaging opening 121 is not particularly limited, but the shape of the engaging opening 121 will have a part, such as a plane, corresponding to The hook 111 is used for the hook 111 to be engaged.

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

Please refer to FIG. 3, which is a schematic structural diagram of a second embodiment of a display backlight module created in this way. In this embodiment, the configuration or connection relationship of the elements is roughly similar to the foregoing, and the similarities will not be repeated here.

As shown in the figure, in this embodiment, both ends of the stop rib 122 are respectively provided with a beveled portion 123, and the beveled portion 123 is located on the surface of the stop rib 122 opposite to the engaging opening 121. For example, if the engagement opening 121 is below the stop rib 122, the beveled portion 123 is located on the surface above the stop rib 122 and at both ends of the stop rib 122; and if the engagement opening 121 is in the stop To the left of the rib 122, the beveled portion 123 is located on the right surface of the stop rib 122, and is located at both ends of the stop rib 122.

The display backlight module 1 of the present invention can further prevent the liquid from dripping or flowing into the engaging opening 121 by the above-mentioned beveled portion 123, thereby entering the interior of the display backlight module 1.

In addition, a groove 124 is provided on the outer surface of the casing 12, and the groove 124 partially surrounds the engaging opening 121. The groove 124 surrounds, for example, at least three sides of the stop rib 122 and the engaging opening 121. That is, the groove 124 may be a groove having a zigzag shape. Preferably, the opening direction of the groove 124 in a zigzag shape may be toward the direction from the stop rib 122 to the engaging opening 121; or, the opening direction may be toward the direction of gravity.

The display backlight module 1 of the present invention, through the configuration of the groove 124 described above, can introduce liquid into the groove 124 and further divert to other places without entering the engaging opening 121. In this way, the display backlight module 1 of the present invention can better prevent liquid from flowing into the engaging opening 121 and enter the interior of the display backlight module 1. Therefore, the display backlight module 1 of the present invention can perfectly prevent the damage of the internal components 8 of the backlight module of the display backlight module 1 due to liquid.

Please refer to FIG. 4, which is a schematic structural diagram of a third embodiment of a display backlight module created in this way. In this embodiment, the configuration or connection relationship of the elements is roughly similar to the foregoing, and the similarities will not be repeated here.

As shown in the figure, in this embodiment, the three sides of the engaging opening 121 may have stop ribs 122 respectively, so that the three stop ribs 122 may form a zigzag-shaped wall portion.

Further, the three stop ribs 122 can form a zigzag-shaped wall part, and the three stop ribs 122 of the zigzag-shaped wall part can have an opening direction from the stop rib 122 adjacent to the light exit side to the card The direction of the opening 121; or, the direction of the opening may be toward the direction of gravity. For example, an opening formed by three stop ribs 122 on the top side of the display backlight module 1 can be directed toward the rear of the display backlight module 1 The opening of the zigzag-shaped wall formed by the three stop ribs 122 on the side can be directed downward of the display backlight module 1.

In different embodiments, the above three stop ribs 122 may form a zigzag-shaped wall part, and a groove 124 surrounding the stop ribs 122 and the engaging opening 121 may also be provided on the outer periphery.

In the display backlight module 1 of the present invention, the three stop ribs 122 can form a configuration of a zigzag-shaped wall portion, so that the liquid can be guided to flow out of the display backlight module 1 without entering the engaging opening 121. Wherein, if the groove 124 is further provided, the efficiency of the diversion can be further increased. In this way, the display backlight module 1 of the present invention can better prevent liquid from flowing into the engaging opening 121, thereby preventing the liquid from entering the interior of the display backlight module 1 and causing damage to components.

Please refer to FIG. 5, which is a schematic structural diagram of a fourth embodiment of a display backlight module created in this invention. In this embodiment, the configuration or connection relationship of the elements is roughly similar to the foregoing, and the similarities will not be repeated here.

As shown in the figure, in this embodiment, the four sides of the engaging opening 121 respectively have the stop ribs 122, and the four stop ribs 122 are connected together to form a mouth-shaped wall portion.

Among them, the four stop ribs 122 can form a mouth-shaped surrounding wall portion, which surrounds the surroundings of the engaging opening 121. Similarly or similarly, the above four stop ribs 122 can also be provided with grooves 124 around the stop ribs 122 and the engaging opening 121.

In this embodiment, the four stop ribs 122 can be used to form the configuration of the mouth-shaped wall portion, so that the diversion liquid can flow out of the display backlight module 1 without entering the engaging opening 121. In this way, the display backlight module 1 of the present invention can better prevent liquid from flowing into the engaging opening 121, thereby preventing the liquid from entering the interior of the display backlight module 1 and causing damage to components.

In addition, in the foregoing third and fourth embodiments, the two ends of one of the stop ribs 122 may be provided with beveled portions 123 respectively. Wherein, the stop rib 122 with the beveled portion 123 may be the stop rib 122 adjacent to the light exit side of the display backlight module 1; or, it may be the stop rib 122 relative to the direction of gravity.

Incidentally, the materials of the inner shell 11 and the outer shell 12 can be made of metal or plastic. When it is made of metal material, the inner shell 11 and the outer shell 12 with the above structure can be formed by die casting process or sheet metal process; when it is made of plastic material, it can be formed by injection molding process and other methods The inner shell 11 and the outer shell 12 having the above structure.

Please refer to FIG. 6 and FIG. 7, which are schematic structural diagrams of the fifth and sixth embodiments of the created display backlight module. In this embodiment, the configuration or connection relationship of the elements is roughly similar to the foregoing, and the similarities will not be repeated here.

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

Further, the description will be made with the stop rib 122 as one. When the display backlight module 1 is installed in the system bracket 9, the positioning portion 91 of the system bracket 9 abuts the stop rib 122. By restricting the degree of freedom between the positioning portion 91 and the stop rib 122, the purpose of stably fixing the display backlight module 1 and the system support 9 can be achieved. Moreover, the hook 111, the engaging opening 121 and the stopping rib 122 of the engaging opening 121 can be used together for the positioning portion 91 to abut against, thereby reducing the additional structure of the housing 12 to correspond to the system support 9 and further reducing the housing 12 The complexity of the overall structure.

In addition, a description will be given of the form in which a plurality of stop ribs 122 are formed into a zigzag-shaped wall portion or a mouth-shaped wall portion. When the display backlight module 1 is installed in the system support 9, the positioning portion 91 of the system support 9 can be embedded in the space surrounded by the zigzag wall or mouth wall formed by the stop rib 122, and can be和地Embed into the snap joint 121. By restricting the degrees of freedom between the positioning portion 91, the stop rib 122, and the engaging opening 121, the purpose of stably fixing the display backlight module 1 and the system bracket 9 can be achieved. Moreover, the hook 111, the engaging opening 121 and the stopping rib 122 of the engaging opening 121 can be used together for the positioning portion 91 to abut against, thereby reducing the additional structure of the housing 12 to correspond to the system support 9 and further reducing the housing 12 The complexity of the overall structure.

It is worth mentioning that the shape of the engaging opening 121 and the stop rib 122 forming the surrounding wall may correspond to the positioning portion 91; or, the shape of the positioning portion 91 corresponds to the shape of the engaging opening 121 and the stop rib 122 forming the surrounding wall shape. Therefore, when the positioning portion 91 is embedded in the engaging opening 121 and the stop rib 122 forming the surrounding 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 seventh embodiment of a display backlight module of the author. In this embodiment, the configuration or connection relationship of the elements is roughly similar to the foregoing, and the similarities will not be repeated here.

In the above-mentioned fifth and sixth embodiments, a reinforcement rib 125 may be further provided on the stop rib 122. In this embodiment, the reinforcement rib 125 is added as an example in the sixth embodiment, but it should not be limited to this. In this embodiment, the configuration of the reinforcing ribs 125 is used to further increase the structural strength of the stop ribs 122, so that the stop ribs 122 are less likely to be deformed or damaged due to the abutment of the positioning portion 91.

Please refer to FIG. 9, which is a schematic structural diagram of an eighth embodiment of a display backlight module created according to the invention. In this embodiment, the configuration or connection relationship of the elements is roughly similar to the foregoing, and the similarities will not be repeated here.

As shown in the figure, in different embodiments, the above-mentioned fifth and sixth embodiments can also be applied at the same time. The first positioning portion 911 is embedded in the space between the stop rib 122 and the light exit side, and the second positioning portion 912 is embedded in the space formed by the stop rib 122.

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

Thus, the display backlight module 1 of the present invention not only prevents liquid from flowing into the interior of the display backlight module 1, but also prevents foreign objects such as debris, dust, etc. from entering the interior of the display backlight module 1.

The above is only exemplary, and not restrictive. Any equivalent modifications or changes made without departing from the spirit and scope of this creation shall be included in the scope of the attached patent application.

1: Display backlight module 11: inner shell 111: snap hook 12: Shell 121: snap joint 122: stop rib 123: Bevel 124: Groove 125: Reinforcement rib 8: Internal components of the backlight module 9: System bracket 91: Positioning Department 911: The first positioning department 912: Second positioning part

FIG. 1 is a schematic cross-sectional view of a first embodiment of a display backlight module of the present invention. FIG. 2 is a schematic structural diagram of a first embodiment of a display backlight module created in this invention. FIG. 3 is a schematic structural diagram of a second embodiment of a display backlight module created in this invention. FIG. 4 is a schematic structural diagram of a third embodiment of a display backlight module created in this invention. FIG. 5 is a schematic structural diagram of a fourth embodiment of a display backlight module created in this invention. FIG. 6 is a schematic structural diagram of a fifth embodiment of a display backlight module created for this. FIG. 7 is a schematic structural diagram of a sixth embodiment of a display backlight module created according to the invention. FIG. 8 is a schematic structural diagram of a seventh embodiment of a display backlight module created according to the invention. FIG. 9 is a schematic structural diagram of an eighth embodiment of a display backlight module created for this.

1: Display backlight module

11: inner shell

111: snap hook

12: Shell

121: snap joint

122: stop rib

8: Internal components of the backlight module

Claims (10)

A display backlight module, comprising: An inner case configured to fix at least one internal component of the backlight module, and the outer surface of the inner case has at least one hook; and An outer shell is disposed on the outer surface of the inner shell, the outer shell has at least one engaging opening corresponding to the at least one hook, and at least one side of the engaging opening is provided with a stop rib, the stop rib The inner shell extends toward the outer shell, and the length of the stop rib is not less than the width of the engaging opening. The display backlight module according to claim 1, wherein both ends of the stop rib are respectively provided with a beveled portion, and the beveled portion is located on a surface of the stop rib opposite to the engaging opening. The display backlight module according to claim 1, wherein the outer surface of the casing is provided with a groove, and the groove surrounds at least three sides of the engaging opening and the stop rib. The display backlight module according to any one of claims 1 to 3, wherein when the display backlight module is disposed on a system support, a positioning portion of the system support is embedded in the snap opening or abuts against the stop rib. The display backlight module according to claim 1, wherein the three sides of the engaging opening respectively have the stop ribs, and the three stop ribs form a zigzag wall portion. The display backlight module according to claim 1, wherein the four sides of the engaging opening respectively have the stop ribs, and the four stop ribs form a mouth-shaped wall portion. The display backlight module according to claim 5 or 6, wherein both ends of the stop rib adjacent to the light emitting side of the display backlight module are respectively provided with an oblique angle portion, and the oblique angle portion is located at the stop The surface of the rib opposite to the engaging opening. The display backlight module according to claim 5 or 6, wherein the outer surface of the casing is provided with a groove, and the groove surrounds at least three sides of the engaging opening and the stop rib. The display backlight module according to claim 5 or 6, wherein when the display backlight module is disposed on a system bracket, a positioning portion of the system bracket is embedded in the engaging opening or abuts against the stop rib. The display backlight module according to claim 6, wherein when the display backlight module is disposed on a system support, a positioning portion of the system support is embedded and closes the engaging opening.

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