CN210244018U - Backlight module with novel stable structure - Google Patents

Abstract

A backlight module with a novel stable structure comprises: the underframe, glue the shell, the light guide plate, optics diaphragm and light emitting source, the first side of underframe has a plurality of first limit of buckling and a plurality of second limit of buckling, one side of the first face of gluing the shell is provided with a plurality of first limits of dodging and a plurality of second dodges the limit, first limit and the second of dodging are dodged and are provided with the dog between the limit, first limit of buckling and the first limit block of dodging, limit and the second of buckling are dodged to the second, the light guide plate sets up in the underframe, optics diaphragm sets up in the underframe, the light emitting source sets up the second side at the underframe. The first side of underframe has set up the first limit of buckling and the limit is buckled to the second, and the limit is buckled to the first limit of buckling and the crisscross distribution setting in limit of buckling of second, and the limit is dodged to the first limit of dodging and the second on the cooperation glue shell, glues the shell and dodges the limit through first limit of dodging and second and buckle limit block with the first limit of buckling and second respectively for the shell is glued to the underframe chucking, avoids gluing the shell and appears droing, and the structure is more stable, has promoted backlight unit's quality.

Description

Backlight module with novel stable structure

Technical Field

The utility model relates to a show technical field, in particular to backlight unit with novel stable structure.

Background

The backlight module is one of the key components of the liquid crystal display panel, and the function of the backlight module is to provide sufficient light sources with uniform brightness and distribution, so that the liquid crystal display can normally display images. General backlight unit includes the light guide plate, optics diaphragm and the braced frame who is used for acceping light guide plate and optics diaphragm, braced frame structural stability is influencing backlight unit structural stability, also directly influencing backlight unit's realization of the super narrow frame, and in complicated service environment, for example high temperature, under the violent impact environment, require the light guide plate to have sufficient expansion space and can not rock at will, then it is more and more high to backlight unit's stability requirement, otherwise appear sticking up the limit easily, the light leak phenomenon, influence LCD's use, therefore, need a backlight unit who has novel stable structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a backlight module with novel stable structure is provided.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a backlight unit with novel stable structure, includes underframe, gluey shell, light guide plate, optics diaphragm and light emitting source, the first side of underframe has a plurality of first limit of buckling and a plurality of second limit of buckling, one side of the first face of gluey shell is provided with a plurality of first limits of dodging and a plurality of second limit of dodging, first dodge the limit with the second is dodged and is provided with the dog between the limit, first limit of buckling with first limit block of dodging, the second buckle the limit with the limit block is dodged to the second, the light guide plate sets up in the underframe, the optics diaphragm sets up in the underframe, the light emitting source sets up the second side of underframe.

Further, the optical film comprises a reflective film, a diffusion film, a lower brightness enhancement film, an upper brightness enhancement film and a reflective polarizing film, and the reflective film, the light guide plate, the diffusion film, the lower brightness enhancement film, the upper brightness enhancement film and the reflective polarizing film are sequentially arranged on the bottom frame.

Further, the third side of underframe is provided with the first boss of buckling and the boss is buckled to the second, the top of the first boss of buckling has first bulge, it offers first groove and the first hole of dodging to dodge to glue the shell, the first boss of buckling passes first hole of dodging, the second buckle the boss with first groove block of dodging.

Further, the fourth side of underframe is provided with the third boss of buckling, the top that the boss was buckled to the third has the second bulge, glue the shell and seted up the second and dodge the hole, the boss was buckled to the third and passed the second dodges the hole.

Further, the limit is buckled to the second is provided with first bulge, the third hole of dodging has been seted up on the limit is dodged to the second, the third dodge the hole with first bulge looks adaptation.

Further, still include first silica gel, first silica gel sets up the second edge of buckling.

Further, still include the second silica gel, the second silica gel sets up one side of boss is buckled to the third.

Further, it is provided with a plurality of second salient pieces to glue the shell, a plurality of fourth dodge the hole have been seted up to the underframe, the fourth dodge the hole with second salient piece looks adaptation.

Further, still include from the type membrane, the second face of gluing the shell is provided with third silica gel, from the type membrane with third silica gel connects.

Furthermore, the first surface of the rubber shell is provided with a reinforcing rib.

The utility model has the advantages that: the first side of underframe has set up the first limit of buckling and the limit is buckled to the second, the length on the first limit of buckling is short in the limit is buckled to the second, the crisscross distribution setting in limit is buckled to the first limit of buckling and second, the limit is dodged to the first limit of dodging and second on the cooperation rubber shell, glue the shell and dodge the limit through first limit of dodging and second and buckle the limit block with first limit of buckling and second respectively, make the underframe chucking better glue the shell, avoid gluing the shell and appear droing, the structure is more stable, backlight unit's quality has been promoted.

Drawings

Fig. 1 is an exploded view of an overall structure of a backlight module with a novel stable structure according to an embodiment;

FIG. 2 is a schematic view of a bottom frame in one embodiment;

FIG. 3 is a schematic view of an embodiment of a glue shell in one direction;

fig. 4 is another schematic view of the rubber case according to an embodiment.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The following will combine the drawings of the embodiments of the present invention to further describe the technical solution of the present invention, and the present invention is not limited to the following specific embodiments.

It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience of description and simplicity of description, but does not indicate or imply that the equipment or components referred to must have specific orientations, be constructed in specific orientations, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art will understand the specific meanings of the terms according to specific situations.

As shown in fig. 1, 2 and 3, in one embodiment, a backlight module with a novel stable structure includes a bottom frame 100, a plastic case 200, a light guide plate 300, an optical film 400 and a light source 500, a first side 110 of the bottom frame 100 has a plurality of first bending sides 111 and a plurality of second bending sides 112, a plurality of first avoiding sides 211 and a plurality of second avoiding sides 212 are disposed on one side of a first surface of the plastic case 200, a stopper 213 is disposed between the first avoiding sides 211 and the second avoiding sides 212, the first bending sides 111 and the first avoiding sides 211 are engaged with each other, the second bending sides 112 and the second avoiding sides 212 are engaged with each other, the light guide plate 300 is disposed in the bottom frame 100, the optical film 400 is disposed in the bottom frame 100, and the light source 500 is disposed at the second side 120 of the bottom frame 100. Specifically, in this embodiment, the bottom frame 100 is an iron frame structure including a bottom surface and four sides, the bottom frame 100 has a receiving cavity, the light guide plate 300 and the optical film 400 are stacked in the receiving cavity, the first side 110 and the second side 120 of the bottom frame 100 are two sides oppositely disposed, the first bending side 111 and the second bending side 112 are alternately distributed, and the first bending side 111 and the second bending side 112 are vertically staggered, that is, the first bending side 111 and the second bending side 112 are staggered and not on the same horizontal line, the first bending side 111 and the second bending side 112 form the first side 110, the first surface of the plastic shell 200 faces the bottom frame 100, the first avoiding side 211 and the second avoiding side 212 are alternately distributed, and meanwhile, the first avoiding side 211 and the second avoiding side 212 are vertically staggered, the wall thickness of the first avoidance edge 211 is thicker than that of the second avoidance edge 212, that is, the first avoidance edge 211 and the second avoidance edge 212 are arranged in a staggered manner and are not on the same horizontal line, it is worth mentioning that the length of the first bending edge 111 is shorter than that of the second bending edge 112, the first avoidance edge 211 is matched with the length of the first bending edge 111, the first avoidance edge 211 is correspondingly clamped with the first bending edge 111 one by one, the second bending edge 212 is matched with the length of the second bending edge 112, the second avoidance edge 212 is correspondingly clamped with the second bending edge 112 one by one, the stopper 213 blocks a gap between the first bending edge 111 and the second bending edge 112, and the first avoidance edge 211, the second avoidance edge 212 and the stopper 213 form the first edge 210 on the first surface of the rubber case 200, the first surface of the plastic case 200 is further provided with a second edge 220, a third edge 230 and a fourth edge 240, the second edge 220 and the first edge 210 are oppositely arranged, the third edge 230 and the first edge 210 are adjacently arranged, the fourth edge 240 and the first edge 210 are adjacently arranged, the third edge 230 and the fourth edge 240 are oppositely arranged to form a quadrilateral structure, the first edge 210, the third edge 230 and the fourth edge 240 enclose the bottom frame 100, and the second edge 220 encloses the bottom frame 100, so that the plastic case 200 is clamped on the bottom frame 100.

In one embodiment, the light source 500 is a light bar, the light bar is used as the light source 500, the light source 500 is provided with a heat conductive adhesive 101, and the light source 500, i.e., the light bar, is adhered to the second side 120 of the bottom frame 100 through the heat conductive adhesive 101.

In one embodiment, the optical film 400 includes a reflective film 410, a diffusion film 420, a lower brightness enhancement film 430, an upper brightness enhancement film 440, and a reflective polarizing film 450, and the reflective film 410, the light guide plate 300, the diffusion film 420, the lower brightness enhancement film 430, the upper brightness enhancement film 440, and the reflective polarizing film 450 are sequentially disposed on the bottom frame 100.

Specifically, the reflective film 410, the light guide plate 300, the diffusion film 420, the lower light enhancement film 430, the upper light enhancement film 440 and the reflective polarizing film 450 are sequentially stacked in an accommodating cavity of the bottom frame 100, the bottom frame 100 is provided with a first fixed film glue 102, the first fixed film glue 102 is bonded to the reflective film 410, so that the reflective film 410 is fixed to the bottom frame 100, the light guide plate 300 is provided with a step-shaped structure, the light guide plate 300 is provided with a second fixed film glue 301, the second fixed film glue 301 is arranged at the step-shaped position, the diffusion film 420, the lower light enhancement film 430, the upper light enhancement film 440 and the reflective polarizing film 450 are sequentially provided with avoidance notches from large to small, so that the diffusion film 420, the lower light enhancement film 430, the upper light enhancement film 440 and the reflective polarizing film 450 can be bonded to the second fixed film glue 301, thereby, the diffusion film 420, the lower brightness enhancement film 430, the upper brightness enhancement film 440 and the reflective polarizing film 450 are adhered and fixed on the light guide plate 300, the first avoiding edge 211 of the glue casing 200 and the first bending edge 111 of the bottom frame 100 are engaged with each other in a one-to-one correspondence manner, the second avoiding edge 212 of the glue casing 200 and the second bending edge 112 of the bottom frame 100 are engaged with each other in a one-to-one correspondence manner, the third edge 230 and the fourth edge 240 of the glue casing 200 are enclosed in the bottom frame 100, and the second edge 220 of the glue casing 200 is enclosed in the bottom frame 100, that is, the second edge 220 of the glue casing 200 is enclosed in the second side 120 of the bottom frame 100, so as to prevent the light leakage of the light emitting source 500 disposed at the second side 120 of the bottom frame 100, thereby firmly engaging the glue casing 200 on the bottom frame 100, and it should be understood that the backlight module with a novel stable structure further includes a double-sided adhesive 103, the double-sided adhesive tape 103 is disposed on the back of the bottom frame 100, and can be used for adhering to other devices, so that the backlight module with the novel stable structure can be installed on a required position by an operator, and operation is facilitated. The first side of underframe has set up the first limit of buckling and the limit is buckled to the second, the length weak point in the second limit of buckling of the first limit of buckling is buckled with the second, the crisscross distribution setting in limit is buckled to the first limit of buckling and second, the limit is dodged to the first limit of dodging and second on the cooperation rubber shell, glue the shell and dodge the limit through first limit of dodging and second and buckle the limit block with first limit of buckling and second respectively, make the underframe chucking better glue the shell, avoid gluing the shell and appear droing, the structure is more stable, backlight unit's quality has been promoted.

In order to further improve the structural stability and facilitate assembly and positioning, in an embodiment, the third side 130 of the bottom frame 100 is provided with a first bending boss 131 and a second bending boss 132, the top of the first bending boss 131 has a first protrusion 133, the rubber casing 200 is provided with a first avoiding groove 250 and a first avoiding hole 260, the first bending boss 131 passes through the first avoiding hole 260, and the second bending boss 132 is engaged with the first avoiding groove 250. Specifically, glue shell 200's one end and seted up first hole 260 of dodging, first buckle boss 131 and pass first hole 260 of dodging, on the one hand, can be convenient glue shell 200 location is installed in underframe 100, on the other hand, in this embodiment, first buckle boss 131 is the L type, and the bottom is leveled mutually with underframe 100, first buckle boss 131 top still is provided with first bulge, and light guide plate 300 can set up rather than the first breach 310 of width exact assorted, can be used for equipment location light guide plate 300, second buckle boss 132 also is the L type, and the bottom is leveled mutually with underframe 100, light guide plate 300 can correspond set up with the second breach 320 of second buckle boss 132 looks adaptation, can be convenient the location equipment of light guide plate 300 also avoids light guide plate 300 to remove at will simultaneously for the structure is more stable.

In one embodiment, the fourth side 140 of the bottom frame 100 is provided with a third bending protrusion 141, the top of the third bending protrusion 141 is provided with a second protrusion 142, the rubber case 200 is provided with a second avoiding hole 270, and the third bending protrusion 141 passes through the second avoiding hole 270. Specifically, fourth side 140 is provided with the third boss 141 of buckling, the third boss 141 of buckling is the L type, glue shell 200 and seted up the second and dodge hole 270, the third buckle boss 141 with the hole 270 cooperation is dodged to the second, can further play the effect of location equipment, the third top of buckling boss 141 is provided with second bulge 142, diffusion barrier 420 the membrane 430 that adds lustre to down go up the membrane 440 with reflection polarizing film 450 can set up the mounting hole, the cooperation second bulge 142, thereby it is convenient diffusion barrier 420 add lustre to membrane 430 down the membrane 440 adds lustre to with reflection polarizing film 450 location equipment makes things convenient for operating personnel to assemble.

In order to make the rubber shell 200 with the underframe 100 blocks better together, prevents that the rubber shell 200 from lying prone outward, in an embodiment, the second is buckled limit 112 and is provided with first bulge 113, the second is dodged limit 212 and has been seted up the third and dodge hole 214, the third dodge hole 214 with first bulge 113 looks adaptation. Specifically, first protruding piece 113 block is in the third dodges in the hole 214, thereby has strengthened the rubber shell 200 with underframe 100 lock prevents to lie prone outside the rubber shell 200, and the structure is more firm. As a further preferable scheme, as shown in fig. 4, in another embodiment, the rubber case 200 is provided with a plurality of second protruding blocks 280, the bottom frame 100 is provided with a plurality of fourth avoiding holes 150, and the fourth avoiding holes 150 are matched with the second protruding blocks 280. Specifically, the second protrusion 280 is engaged with the fourth avoiding hole 150, so that the rubber case 200 and the bottom frame 100 can be tightly engaged with each other, thereby further preventing the rubber case 200 from being separated from the bottom frame 100, and improving the structural stability.

In one embodiment, the foldable frame further comprises a first silicone rubber 600, wherein the first silicone rubber 600 is disposed on the second bending edge 112. Still include second silica gel 700, second silica gel 700 sets up one side of third boss 141 of buckling. Specifically, in this embodiment, the second is buckled limit 112 and is made the nip for hug closely first silica gel 600, first silica gel 600 is a style of calligraphy, first silica gel 600 can play the cushioning effect, thereby guarantees light guide plate 300 has shrink and inflation space in the axial direction, second silica gel 700 pastes on the third is buckled on the boss 141, second silica gel 700 is the L type, second silica gel 700 can play the cushioning effect, thereby guarantees light guide plate 300 has shrink and inflation space at the horizontal direction, thereby makes light guide plate 300 has shrink and inflation space to be applicable to different complicated service environment, it is more practical.

In one embodiment, the adhesive tape further comprises a release film 800, a third silicone gel 900 is disposed on the second surface of the adhesive case 200, and the release film 800 is connected to the third silicone gel 900. Specifically, the first face and the second face of gluing shell 200 set up mutually, the first face of gluing shell 200 is the orientation the one side of underframe 100, the second face of gluing shell 200 is dorsad the one side of underframe 100, that is to say, it deviates from to glue shell 200 the one side of underframe 100 is provided with third silica gel 900, from type membrane 800 with third silica gel 900 bonds weakly, can play dustproof and anti-scratch effect from type membrane 800, use as the user during the backlight unit that has novel stable structure, only need tear gently from type membrane 800 can, easy and simple to handle.

In one embodiment, the first side of the rubber housing 200 is provided with a reinforcing rib 290. Specifically, the two reinforcing ribs 290 are provided, and the reinforcing ribs are provided, so that when the backlight module with the novel stable structure is extruded in the using process, the reinforcing ribs 290 can be in contact with the light guide plate 300, the reinforcing ribs 290 can play a certain buffering and supporting role, play a role in protecting the light guide plate 300, and further improve the stability and quality of the backlight module with the novel stable structure.

In order to prevent light leakage, in one embodiment, a single-sided adhesive 104 is disposed on one side of the second bending side 112. The single-sided adhesive 104 is attached to one side of the second bent edge facing the second side edge 120, and the single-sided adhesive 104 is black and black, so that light leakage can be prevented.

In order to further prevent light leakage, in an embodiment, the light guide plate further includes a first reflective film strip 105 and a second reflective film strip 106, the first reflective film strip 105 is disposed on a side of the light guide plate 300 close to the first side 110, the second reflective film strip 106 is disposed on a side of the light guide plate 300 close to the fourth side 140, and the first reflective film strip 105 and the second reflective film strip 106 can be adhered to two corresponding sides of the light guide plate 300 by disposing adhesive tapes, so that light emitted from the light source 500 can be prevented from leaking out from the two sides, and the light leakage prevention function is achieved.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a backlight unit with novel stable structure which characterized in that includes: underframe, gluey shell, light guide plate, optical film piece and light emitting source, the first side of underframe has a plurality of first limit of buckling and a plurality of second limit of buckling, the side of the first side of gluing the shell is provided with a plurality of first limits of dodging and a plurality of second limit of dodging, first dodge the limit with the second is dodged and is provided with the dog between the limit, first the limit of buckling with the first limit block of dodging, the second buckle the limit with the second dodges the limit block, the light guide plate sets up in the underframe, the optical film piece sets up in the underframe, the light emitting source sets up the second side of underframe.

2. The backlight module with novel stable structure of claim 1, wherein the optical film comprises a reflective film, a diffusion film, a lower brightness enhancement film, an upper brightness enhancement film and a reflective polarizing film, and the reflective film, the light guide plate, the diffusion film, the lower brightness enhancement film, the upper brightness enhancement film and the reflective polarizing film are sequentially disposed on the bottom frame.

3. The backlight module with novel stable structure as claimed in claim 2, wherein the third side of the bottom frame is provided with a first bending boss and a second bending boss, the top of the first bending boss has a first protrusion, the plastic shell has a first avoiding groove and a first avoiding hole, the first bending boss passes through the first avoiding hole, and the second bending boss is engaged with the first avoiding groove.

4. The backlight module with novel stable structure as claimed in claim 3, wherein the bottom frame is provided at a fourth side with a third bending boss, the third bending boss has a second protrusion at the top, the plastic shell has a second avoiding hole, and the third bending boss passes through the second avoiding hole.

5. The backlight module with novel stable structure as claimed in claim 2, wherein the second bent edge is provided with a first protrusion, the second bent edge is provided with a third avoiding hole, and the third avoiding hole is adapted to the first protrusion.

6. The backlight module with novel stable structure as claimed in claim 2, further comprising a first silicone disposed on the second bent edge.

7. The backlight module with novel stable structure as claimed in claim 4, further comprising a second silicone disposed on one side of the third bending protrusion.

8. The backlight module with novel stable structure as claimed in claim 2, wherein the plastic shell has a plurality of second protrusions, the bottom frame has a plurality of fourth avoiding holes, and the fourth avoiding holes are adapted to the second protrusions.

9. The backlight module with novel stable structure as claimed in claim 2, further comprising a release film, wherein a third silicone is disposed on the second surface of the rubber shell, and the release film is connected to the third silicone.

10. The backlight module with novel stable structure as claimed in claim 2, wherein the first surface of the plastic shell is provided with a rib.

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