Backlight casting structure capable of improving backlight lightening effect

Abstract

The backlight casting structure capable of improving the backlight lightening effect comprises a casting body, the casting body is composed of an inner casting body and an outer casting body, a groove body is formed in the bottom wall of the inner casting body, a double-faced adhesive tape is embedded in the groove body, and the double-faced adhesive tape is embedded in the outer casting body. The area, corresponding to the bottom wall of the casting inner body, of the double-sided adhesive enclosure is a blocking area, and foreign matter in the blocking area can be prevented from moving outwards to enter the backlight diaphragm under the action of the double-sided adhesive enclosure. According to the backlight casting structure capable of improving the backlight lightening effect, the design of double-sided adhesion is carried out on the bottom wall of a conventional backlight casting, so that the blocking area of the bottom wall can be encircled, when foreign matter in the blocking area moves towards the edge, the foreign matter can be adhered to the blocking area to a certain extent through the double-sided adhesion, and the effect of improving the backlight lightening effect is achieved. And the condition that the light finally enters the backlight membrane is reduced, and the lightening effect of the backlight module is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to backlight technical field especially relates to a backlight casting structure that can improve backlight lighting effect. BACKGROUND

[0002] Backlight is a form of illumination in the electronics industry, often used in LCD displays. Backlighting differs from front lighting in that it is illuminated from the side or back, while front lighting, as the name suggests, is illuminated from the front. They are used to increase the brightness in low light environments and the brightness of computer monitors, LCD screens, and to produce light in a similar way to CRT displays.

[0003] The common materials of the backlight casting are magnesium alloy and aluminum alloy, and the process flow of the backlight casting is: die casting, rough punching, hot pressing, CNC, deburring, polishing and passivation; the metal debris foreign matter will be generated in the three posts of CNC, deburring and polishing, and cannot be completely cleaned, and a layer of film will be formed on the surface of the casting after passivation, and a small amount of powder foreign matter will be generated in the film;

[0004] The above two kinds of foreign matter will cause the backlight lighting foreign matter when moving into the backlight film in the backlight module, and affect the actual lighting effect of the backlight, therefore, the backlight casting structure that can improve the backlight lighting effect is provided. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a backlight casting structure that can improve the backlight lighting effect, which is designed to be double-sidedly adhered on the bottom wall of the backlight casting to adhere the outward foreign matter and avoid entering the backlight film.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model discloses a backlight casting structure that can improve the backlight lighting effect, which comprises a casting body, the casting body is composed of an inner casting body and an outer casting body, a groove is formed in the bottom wall of the inner casting body, and a double-sided adhesive is embedded in the groove.

[0008] Further, the groove is a "frame type" groove, and the "frame type" groove is formed along the edge of the bottom wall of the casting body.

[0009] Further, the thickness of the double-sided adhesive is the same as the depth of the groove.

[0010] Further, the top of the double-sided adhesive is pasted with a hard film, and the top of the hard film is provided with a foreign matter cleaning element.

[0011] Further, the foreign matter cleaning element comprises a sticky foam, and one side of the sticky foam has a pasting surface.

[0012] The pasting surface has a bonding area at the position corresponding to the hard film, and the hard film is pasted with the sticky foam through the bonding area.

[0013] Further, the sticky surface of the sticky foam is a foreign matter adhering area except the bonding area, and the foreign matter adhering area can paste the foreign matter on the bottom wall of the inner body of the casting.

[0014] Further, the thickness of the sticky foam is greater than the depth of the inner body of the casting.

[0015] Further, the top of the two sides of the sticky foam is provided with a tearing part.

[0016] Further, the tearing part extends to the outside of the outer body of the casting.

[0017] Further, the inner side of the hard film is connected with a protruding part, and the connecting position of the protruding part and the hard film is punched with a bending line.

[0018] Compared with the prior art, the backlight casting structure capable of improving the backlight lighting effect has the following beneficial effects:

[0019] The backlight casting structure capable of improving the backlight lighting effect provided by the utility model can enclose the blocking area of the bottom wall through the double-sided adhesive design of the bottom wall of the conventional backlight casting body, so that when the foreign matter in the blocking area moves towards the edge, the double-sided adhesive can form a certain adhesion to the foreign matter, and the foreign matter is less likely to enter the backlight film, and the backlight module lighting effect is improved.

[0020] Through the design of the foreign matter cleaning element, the double-sided adhesive can be connected with the sticky foam through the hard film, the alignment of the double-sided adhesive with the sticky foam can be realized through the whole sticky foam, and the double-sided adhesive which is relatively soft can be better aligned and attached due to the certain molding degree of the hard film and the whole sticky foam, so that the double-sided adhesive is not easily attached to the groove.

[0021] Through the design of the whole sticky foam, the sticky foam can be pressed from the outside after the alignment and attachment of the double-sided adhesive, so that the double-sided adhesive is indirectly pressed through the extrusion of the sticky foam, and the firm attachment of the double-sided adhesive in the groove is further improved.

[0022] Through cooperation of the viscous foam and the foreign matter attaching area, the double-sided sticking can be promoted by pressing the viscous foam, meanwhile, the foreign matter attaching area can be pasted with the foreign matter in the area of the casting body except the groove body, so that the foreign matter can be taken out when the viscous foam is taken out, the number of the foreign matter in the casting body is reduced, and the backlight is more beneficial to be lightened. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A structure diagram of the backlight casting structure capable of improving backlight lighting effect is provided in the utility model.

[0024] Figure 2 A double-sided sticking structure diagram of the backlight casting structure capable of improving backlight lighting effect is provided in the utility model.

[0025] Figure 3 A foreign matter cleaning element structure diagram of the backlight casting structure capable of improving backlight lighting effect is provided in the utility model.

[0026] Figure 4 A casting inner body part structure diagram of the backlight casting structure capable of improving backlight lighting effect is provided in the utility model.

[0027] Figure 5 A viscous foam structure diagram of the backlight casting structure capable of improving backlight lighting effect is provided in the utility model.

[0028] Figure 6 A split structure diagram of the backlight casting structure capable of improving backlight lighting effect is provided in the utility model.

[0029] Figure 7 A part sectional structure diagram of the backlight casting structure capable of improving backlight lighting effect is provided in the utility model.

[0030] Figure 8 A bending line structure diagram of the backlight casting structure capable of improving backlight lighting effect is provided in the utility model.

[0031] Marking in the drawing is as follows:

[0032] Casting body 1, casting inner body 11, casting outer body 12;

[0033] Groove body 2;

[0034] Double-sided sticking 3, blocking area 31, hard diaphragm 32, protruding part 33, bending line 34;

[0035] Foreign matter cleaning element 4, viscous foam 41, pasting face 42, bonding area 43, foreign matter attaching area 44, tearing-off part 45. DETAILED DESCRIPTION

[0036] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0037] As described in the background, the foreign matter is easy to move into the backlight film in the backlight module, which can cause the backlight to light the foreign matter and affect the actual lighting effect of the backlight.

[0038] In order to solve the technical problem, the present application provides a backlight casting structure capable of improving the backlight lighting effect, which is applied to the backlight.

[0039] Specifically, please refer to Figures 1-8 The backlight casting structure capable of improving the backlight lighting effect specifically comprises a casting body 1, the casting body 1 is jointly constituted by a casting inner body 11 and a casting outer body 12, a groove 2 is formed in the bottom wall of the casting inner body 11, a double-sided adhesive 3 is embedded in the groove 2, the area surrounded by the double-sided adhesive 3 corresponding to the bottom wall of the casting inner body 11 is a blocking area 31, and the double-sided adhesive 3 can hinder the foreign matter in the blocking area 31 from moving outwards into the backlight film.

[0040] The backlight casting structure capable of improving the backlight lighting effect provided by the present application designs the double-sided adhesive 3 on the bottom wall of the conventional backlight casting body 1, so that the double-sided adhesive 3 can surround the blocking area 31 of the bottom wall. When the foreign matter in the blocking area 31 moves towards the edge, the double-sided adhesive 3 can form a certain adhesion to the foreign matter, which reduces the possibility of the foreign matter finally entering the backlight film, and is beneficial to the improvement of the lighting effect of the backlight module.

[0041] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0042] It should be noted that the embodiments and the features and technical solutions in the embodiments in the present application can be combined with each other without conflict.

[0043] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0044] Embodiment one

[0045] Please refer to Figures 1-8As shown in the figure, a backlight casting structure capable of improving backlight lighting effect comprises a casting body 1, which is composed of a casting inner body 11 and a casting outer body 12, a groove 2 is formed in the bottom wall of the casting inner body 11, and a double-sided adhesive 3 is embedded in the groove 2; the area surrounded by the double-sided adhesive 3 corresponding to the bottom wall of the casting inner body 11 is a blocking area 31, and the double-sided adhesive 3 can prevent foreign matters in the blocking area 31 from moving out and entering the backlight film;

[0046] The groove 2 is a "frame type" groove 2, which is formed along the edge of the bottom wall of the casting body 1, and the thickness of the double-sided adhesive 3 is the same as the depth of the groove 2;

[0047] After the double-sided adhesive 3 is pasted on the bottom wall of the casting inner body 1, it is in the same plane as the bottom wall of the casting inner body 1, which does not affect the subsequent assembly of the backlight structure. When foreign matters located at the center move towards the edge and enter the backlight film, the double-sided adhesive 3 can paste the foreign matters moving at the edge, thereby avoiding the influence of the foreign matters on the backlight lighting effect.

[0048] Embodiment two

[0049] The backlight casting structure capable of improving backlight lighting effect provided in embodiment one is further optimized, specifically, as shown in Figure 6 and Figure 7 The top of the double-sided adhesive 3 is pasted with a hard film 32, and the top of the hard film 32 is further provided with a foreign matter cleaning element 4, which can make the double-sided adhesive 3 paste in the groove 2;

[0050] The foreign matter cleaning element 4 comprises a sticky foam 41, one side of which has a pasting surface 42, wherein the pasting surface 42 has a bonding area 43 at the position corresponding to the hard film 32, which makes the hard film 32 and the sticky foam 41 paste;

[0051] Through the design of the foreign matter cleaning element, the double-sided adhesive 3 and the sticky foam 41 can be connected through the hard film 32, which can realize the alignment of the double-sided adhesive 3 through the whole sticky foam 41. Since the hard film 32 and the whole sticky foam 41 both have a certain degree of molding, the relatively soft double-sided adhesive 3 can be better aligned and pasted, avoiding the situation that the double-sided adhesive 3 is too soft to be pasted in the aligned groove.

[0052] Embodiment three

[0053] The backlight casting structure capable of improving backlight lighting effect provided in embodiment one or two is further optimized, specifically, as shown in Figure 5As shown, the adhesive surface 42 in the adhesive foam 41 is the foreign matter adhering area 44 except the bonding area 43, and the foreign matter adhering area can adhere the foreign matter on the bottom wall of the inner body 11 of the casting;

[0054] Through the design of the whole surface of the adhesive foam 41, after the alignment and attachment of the double-sided adhesive 3, the adhesive foam 41 can be pressed from the outside. Since the adhesive foam 41 has a certain thickness, it can be pressed well from the outside. The adhesive foam 41 subjected to the pressing force will transmit the pressure to the double-sided adhesive 3, thereby promoting the firm attachment of the double-sided adhesive 3.

[0055] At the same time, in the pressing process of the adhesive foam 41, the foreign matter adhering area 44 on the adhesive foam 41 also contacts the bottom wall of the inner body 11 of the casting, so that the residual foreign matter can be adhered by the adhesive effect of the adhesive foam 41 itself, and the foreign matter is taken out in the subsequent process of taking out the adhesive foam 41, thereby reducing the number of foreign matters inside the casting body and being more conducive to the lighting of the backlight.

[0056] Embodiment Four

[0057] The backlight casting structure provided in Embodiment Three is further optimized to improve the lighting effect of the backlight, as shown in Figure 5 As shown, the thickness of the adhesive foam 41 is greater than the depth of the inner body 11 of the casting;

[0058] The top of the adhesive foam 41 on both sides has a tear-off part 45 extending outside the outer body 12 of the casting;

[0059] Through the design of the tear-off part 45, after the pressing and adhering of the foreign matter of the adhesive foam 41 are completed, the tear-off part 45 can facilitate the taking out of the adhesive foam 41.

[0060] Embodiment Five

[0061] The backlight casting structure provided in Embodiment Four is further optimized to improve the lighting effect of the backlight, as shown in Figure 8 As shown, the inner side of the hard film 32 is connected with a protruding part 33, and the connection part of the protruding part 33 and the hard film 32 is punched with a bending line 34. In Embodiment Four, the adhesive foam 41 is taken out or, since the protruding part 33 itself does not have adhesion and is not adhered to the double-sided adhesive 3 below, the whole surface of the hard film 32 can be taken out by clamping one corner.

[0062] The use process of the backlight casting structure capable of improving backlight lighting effect is as follows: the adhesive bubble cotton 41 with the hard diaphragm 23 and the double-sided adhesive 3 is aligned to the bottom of the casting inner body 11, the double-sided adhesive 3 is placed into the corresponding groove body 2, then the adhesive bubble cotton 41 is pressed from outside, the double-sided adhesive 3 is fully contacted and pasted with the groove body 2, at the same time, the foreign matter adhering area 44 is fully contacted with the blocking area 31, finally the adhesive bubble cotton 41 is taken out through the tearing part 45, the pasted foreign matter is taken out, then the hard diaphragm 32 is taken out through the protruding part 33, only the double-sided adhesive 3 is left in the groove body 2, in this way, when the foreign matter in the blocking area 31 moves to the outside edge, the foreign matter moved to the edge is adhered through the action of the double-sided adhesive 3, so that the situation that the foreign matter enters the backlight diaphragm and affects the backlight lighting effect is reduced.

[0063] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction relationship of two elements, unless another definite limitation. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model.

[0064] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, and not all the embodiments, and the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model. The utility model can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing specific embodiments can be modified, or some technical features can be replaced equivalently. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection range of the utility model.

Claims

1. A backlight casting structure capable of improving backlighting effect, comprising a casting body (1), the casting body (1) being composed of a casting inner body (11) and a casting outer body (12), characterized in that, The bottom wall of the casting inner body (11) is provided with a groove (2), and the groove (2) is embedded with double-sided adhesive (3). The area corresponding to the bottom wall of the casting inner body (11) is a blocked area (31), and the double-sided adhesive (3) can prevent foreign matter in the blocked area (31) from moving out and entering the backlight film.

2. The backlight casting structure capable of improving backlight lighting effect according to claim 1, characterized in that, The groove (2) is a "frame type" groove (2), and the "frame type" groove (2) is provided at the edge of the bottom wall of the casting body (1).

3. The backlight casting structure capable of improving backlight lighting effect according to claim 1, characterized in that, The thickness of the double-sided adhesive (3) is the same as the depth of the groove (2).

4. The backlight casting structure capable of improving backlight lighting effect according to claim 1, wherein, The top of the double-sided adhesive (3) is pasted with a hard film (32), and the top of the hard film (32) is further provided with a foreign matter cleaning element (4), which can make the double-sided adhesive (3) adhere to the groove (2).

5. The backlight casting structure capable of improving backlight lighting effect according to claim 4, characterized in that, The foreign matter cleaning element (4) includes adhesive foam (41), and one side of the adhesive foam (41) has a pasting surface (42). The pasting surface (42) has a bonding area (43) at a position corresponding to the hard film (32), and the hard film (32) and the adhesive foam (41) are pasted through the bonding area (43).

6. The backlight molding structure capable of improving backlighting effect according to claim 5, wherein, The pasting surface (42) in the adhesive foam (41) is an foreign matter adhering area (44) except the bonding area (43), which can paste foreign matter on the bottom wall of the casting inner body (11).

7. The backlight casting structure capable of improving backlight lighting effect according to claim 5, wherein, The thickness of the adhesive foam (41) is greater than the depth of the casting inner body (11).

8. The backlight casting structure capable of improving backlight lighting effect according to claim 7, characterized in that, The top of the adhesive foam (41) on both sides is extended with a tear-off part (45).

9. The backlight casting structure capable of improving backlight lighting effect according to claim 8, characterized in that, The tear-off part (45) extends to the outside of the casting outer body (12).

10. The backlight casting structure capable of improving backlight lighting effect according to claim 4, wherein, The inner side of the hard film (32) is connected with a protruding part (33), and the connection between the protruding part (33) and the hard film (32) is punched with a bending line (34).

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