CN214011688U - Novel backlight source for backlight module - Google Patents

Abstract

The utility model discloses a novel backlight source for backlight unit, which comprises an outer shell, the inside fixed mounting of shell has last diffusion barrier, the circuit board is installed in the inside embedding of shell, diffusion barrier installs down under the lens fixed surface, diffusion barrier installs the light guide plate down fixed surface, fixed surface installs the reflectance coating under the light guide plate, light guide plate side surface fixed mounting has the light screen, the shell is close to top edge position movable mounting and opens and shuts the lid, it has the screw rod to open and shut to cover the upper surface and be close to edge position fixed mounting, the quantity of screw rod is two, the screw rod with shell threaded connection, the shell internal surface is seted up flutedly. A novel backlight for backlight unit, can solve the inconvenient problem of the poor dismouting of solution equipment protection effect through the shell that sets up, can also lack heat abstractor through the heating panel solution equipment that sets up and influence equipment life's problem.

Description

Novel backlight source for backlight module

Technical Field

The utility model relates to a backlight field, in particular to novel backlight for backlight unit.

Background

The backlight source is a display screen assembly device, is made up of light screen, light guiding plate, etc., place in the back light module, apply to every field extensively, the most core technology in the back light module is the optical technology of the light guiding plate, mainly there are two kinds of light guiding plate forms of printing shape and injection molding, other such as injection molding and printing, laser is struck, corrode, etc. account for the very small proportion, unsuitable for the principle of mass production, the printing shape becomes the mainstream technology in the past in a long time because of its low cost, but the quality product is not high always its main disadvantage, and LCD products require more accurate light guiding plate structure, the injection molding light guiding plate must become the mainstream of development of the backlight source, but the corresponding mould technical problem can be overcome only by a few major factories in Japan; there is certain drawback in current backlight for backlight unit when using, dismantles inconveniently like current backlight for backlight unit, lacks protective structure moreover, and the corner damages easily when receiving external force striking, and current backlight for backlight unit is when using in addition, and the circuit board does not have heat radiation structure, leads to the poor problem that influences equipment life of radiating effect, for this reason, we propose a novel backlight for backlight unit.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a novel backlight source for backlight module, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel backlight source for backlight unit, includes the shell, the inside fixed mounting of shell has last diffusion barrier, the inside embedding of shell has the circuit board.

Preferably, the lower surface of the upper diffusion film is fixedly provided with a lens, the lower surface of the lens is fixedly provided with a lower diffusion film, the lower surface of the lower diffusion film is fixedly provided with a light guide plate, the lower surface of the light guide plate is fixedly provided with a reflection film, and the side surface of the light guide plate is fixedly provided with a light screen.

Preferably, the position of the shell, which is close to the upper edge, is movably provided with an opening and closing cover, the position of the upper surface of the opening and closing cover, which is close to the edge, is fixedly provided with two screw rods, the screw rods are in threaded connection with the shell, the inner surface of the shell is provided with grooves, the bottom surfaces of the grooves are provided with slotted holes, and the slotted holes are connected and communicated with the grooves.

Preferably, a hinge is movably mounted on the surface of one side of the opening and closing cover close to the lower edge, and a screw hole is formed in the upper surface of the hinge.

Preferably, the inside fixedly connected with circuit board of slotted hole, fixed surface installs the LED lamp on the circuit board, fixed surface installs the heating panel under the circuit board, fixed surface installs radiating fin on one side of the heating panel, the heating panel with heat conduction silicone grease has been paintd between the circuit board, and fixed surface installs the winding displacement seat on one side of the circuit board.

Preferably, the light guide plate is placed inside the groove, the number of the light shielding plates is three, and the thickness of the heat-conducting silicone grease is one zero point and three millimeters.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, through the shell that sets up, the inside recess of seting up of shell can live with main parts such as light guide plate parcel, and the shell just can fix main parts such as light guide plate through hinge cooperation screw rod, thereby solve the inconvenient problem of poor dismouting of equipment protection effect, through the heating panel that sets up, the heating panel inlays inside the shell, save the inside limited space of backlight unit, and the heating panel can also cooperate heat conduction silicone grease and circuit board to contact closely, improve heat radiating area through radiating fin, thereby improve heat-conducting efficiency, further solution equipment lacks the problem that heat abstractor influences equipment life.

Drawings

Fig. 1 is a schematic view of an overall structure of a backlight source for a novel backlight module according to the present invention;

fig. 2 is a schematic view of a light guide plate of a backlight source for a novel backlight module according to the present invention;

fig. 3 is a schematic view of a partial structure of a housing of a backlight source for a backlight module according to the present invention;

fig. 4 is an enlarged view of a portion a in fig. 1 of a novel backlight source for a backlight module according to the present invention;

fig. 5 is a schematic view of a local half-section structure of a housing of a backlight source for a backlight module according to the present invention.

In the figure: 1. an upper diffusion film; 101. a lens; 102. a lower diffusion film; 103. a visor; 104. a reflective film; 105. a light guide plate; 2. a housing; 201. opening and closing the cover; 202. a screw; 203. a groove; 204. a hinge; 205. a screw hole; 206. a slot; 3. a circuit board; 301. an LED lamp; 302. a heat dissipation plate; 303. a heat dissipating fin; 304. heat-conducting silicone grease; 305. and a wire arranging seat.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, a novel backlight source for a backlight module comprises a housing 2, an upper diffusion film 1 is fixedly mounted inside the housing 2, and a circuit board 3 is embedded inside the housing 2.

The lower surface of the upper diffusion film 1 is fixedly provided with a lens 101, the lower surface of the lens 101 is fixedly provided with a lower diffusion film 102, the lower surface of the lower diffusion film 102 is fixedly provided with a light guide plate 105, the lower surface of the light guide plate 105 is fixedly provided with a reflecting film 104, and the side surface of the light guide plate 105 is fixedly provided with a shading plate 103; an opening and closing cover 201 is movably mounted at a position, close to the upper edge, of the shell 2, screw rods 202 are fixedly mounted at a position, close to the edge, of the upper surface of the opening and closing cover 201, the number of the screw rods 202 is two, the screw rods 202 are in threaded connection with the shell 2, a groove 203 is formed in the inner surface of the shell 2, a slotted hole 206 is formed in the bottom surface of the groove 203, the slotted hole 206 is in connection and conduction with the groove 203, main parts such as a light guide plate 105 can be wrapped by the groove 203 formed in the shell 2, and the shell 2 can fix the main parts such as the light guide plate 105 through the hinge 204 and the screw rods 202; a hinge 204 is movably arranged on the surface of one side of the opening and closing cover 201 close to the lower edge, and a screw hole 205 is formed in the upper surface of the hinge 204; the circuit board 3 is fixedly connected inside the slotted hole 206, the LED lamp 301 is fixedly arranged on the upper surface of the circuit board 3, the heat dissipation plate 302 is fixedly arranged on the lower surface of the circuit board 3, the heat dissipation fins 303 are fixedly arranged on the surface of one side of the heat dissipation plate 302, the heat conduction silicone grease 304 is coated between the heat dissipation plate 302 and the circuit board 3, the wire arranging seat 305 is fixedly arranged on the surface of one side of the circuit board 3, the heat dissipation plate 302 is embedded inside the shell 2, the limited space inside the backlight module is saved, the heat dissipation plate 302 can be matched with the heat conduction silicone grease 304 to be closely contacted with the circuit board 3, the heat dissipation area is improved through the heat dissipation fins 303, and therefore the heat conduction efficiency is improved; the light guide plate 105 is placed inside the groove 203, the number of the light shielding plates 103 is three, and the thickness of the heat conductive silicone grease 304 is one zero point and three millimeters.

It should be noted that, the utility model relates to a novel backlight source for backlight module, when in use, the lower diffusion film 102, the lens 101 and the upper diffusion film 1 are sequentially attached to the upper surface of the light guide plate 105, then the lower surface of the light guide plate 105 is attached with a reflection film 104, then the light screen 103 is installed on the side surface of the light guide plate 105, it should be noted that, the light screen 103 is not installed on the side surface of the light guide plate 105 close to the LED lamp 301, then the light guide plate 105 is placed into the groove 203 formed on the housing 2, the groove 203 formed inside the housing 2 can wrap the main components such as the light guide plate 105, to prevent the main components such as the light guide plate 105 from colliding, and the housing 2 can fix the main components such as the light guide plate 105 by the hinge 204 and the screw 202, thereby solving the problem of poor protection effect and inconvenient dismounting, the heat dissipation plate 302 is embedded inside the housing 2, saving the limited space inside the backlight module, and the heat dissipation plate 302 can also be matched with the heat conduction silicone grease 304 to be closely contacted with the circuit board 3, the heat dissipation area is increased through the heat dissipation fins 303, so that the heat conduction efficiency is increased, the problem that the service life of equipment is influenced due to the fact that the equipment lacks of a heat dissipation device is further solved, and finally the wiring seat 305 is connected and conducted with an external circuit.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a novel backlight for backlight unit which characterized in that: including shell (2), the inside fixed mounting of shell (2) has last diffusion barrier (1), circuit board (3) are installed to the inside embedding of shell (2), shell (2) are close to top edge position movable mounting and open and shut lid (201), open and shut lid (201) upper surface is close to edge position fixed mounting and has screw rod (202), the quantity of screw rod (202) is two, screw rod (202) with shell (2) threaded connection, shell (2) internal surface has seted up recess (203), slotted hole (206) have been seted up to recess (203) bottom surface, slotted hole (206) with recess (203) are connected and are switched on, open and shut lid (201) side surface and be close to bottom edge position movable mounting and have hinge (204), screw (205) have been seted up to hinge (204) upper surface.

2. The novel backlight source of claim 1, wherein: the LED lamp is characterized in that a lens (101) is fixedly mounted on the lower surface of the upper diffusion film (1), a lower diffusion film (102) is fixedly mounted on the lower surface of the lens (101), a light guide plate (105) is fixedly mounted on the lower surface of the lower diffusion film (102), a reflection film (104) is fixedly mounted on the lower surface of the light guide plate (105), and a light shielding plate (103) is fixedly mounted on the side surface of the light guide plate (105).

3. The novel backlight source of claim 2, wherein: slotted hole (206) inside fixedly connected with circuit board (3), fixed surface installs LED lamp (301) on circuit board (3), fixed surface installs heating panel (302) under circuit board (3), fixed surface installs radiating fin (303) in heating panel (302) one side, heating panel (302) with heat conduction silicone grease (304) have been paintd between circuit board (3), fixed surface installs winding displacement seat (305) in circuit board (3) one side.

4. The novel backlight source of claim 3, wherein: the light guide plate (105) is placed in the groove (203), the number of the light shielding plates (103) is three, and the thickness of the heat-conducting silicone grease (304) is one zero point and three millimeters.

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