CN207676087U - Backlight module - Google Patents

Abstract

The utility model discloses backlight modules, the affixed middle metal frame including backboard and with backboard, the backboard has bottom plate and is folded upward at the side plate of extension by bottom plate, the middle metal frame has frame main body and bends downward the side frame of extension by frame main body, the side plate and side frame are affixed, there is the frame main body viewing area, the lower face of frame main body to be also pasted with dark-coloured single side and glue, viewing area and the integrally punching formation of dark-coloured single side station.By before viewing area is punched, dark-coloured single side is first pasted onto to the lower face of frame main body, frame main body and the viscous punching together of dark-coloured single side are formed into viewing area again, the edge for keeping dark-coloured single side viscous is consistent with the edge of viewing area to be aligned, and dark-coloured single side is pasted to the lower face for being attached to frame main body with craft（The periphery of viewing area）It compares, it can be ensured that zero deflection, it is perfectly aligned.

Description

Backlight module

Technical field

The utility model is related to back light source technique fields, relate more specifically to backlight module.

Background technology

Important component one of of the backlight module as liquid crystal display device, plays the work that backlight is provided for liquid crystal display device Be arranged in the lower section of liquid crystal display device with, usual backlight module, including backboard, light guide plate, luminescence component, optical film group and in The components such as frame.

Middle large scale（10.1 or more）The usual center of backlight module block use the structure of metal frame, fixed supporting role Effect is preferable, but since metal frame surface can be reflective, often appears in luminous zone edge and is generated because of metal frame surface reflection Bright line problem, which is mainly shadow of the ray cast that reflects of metal frame in optical film group, the light of the threadiness Shadow forms the bright line of luminous area edge.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a kind of backlight of the edge of display area without bright line Module.

The utility model institute technique effect to be achieved is realized by following scheme：Backlight module, including backboard and with the back of the body The affixed middle metal frame of plate, the backboard have bottom plate and are folded upward at the side plate of extension by bottom plate, and the middle metal frame has Frame main body and the side frame that extension is bent downward by frame main body, the side plate and side frame are affixed, and the frame main body has viewing area, frame The lower face of main body is also pasted with dark-coloured single side and glues, viewing area and the integrally punching formation of dark-coloured single side station.

Preferably, the dark-coloured single side glues for black or grey.

Preferably, it is bar shape before the dark-coloured single side sticking is cut, the dark-coloured single side of bar shape covers lid viewing area Edge.

Preferably, it is stacked gradually from the bottom up on the bottom plate equipped with reflector plate, light guide plate and optical film group.

Preferably, there is the light guide plate at least one side to be used as light-emitting surface, correspondence leaded light as incidence surface and upper surface The incidence surface of plate, the backlight module are additionally provided with luminescence component.

Preferably, the luminescence component includes the LED light of wiring board and setting in the circuit board.

Preferably, one side with the LED light welding of the wiring board, another side are bonded in the madial wall of side plate by adhesive On.

Preferably, the adhesive is thermal paste.

Preferably, the optical film group include the diffusion barrier being cascading from the bottom up on light guide plate light-emitting surface, Lower bright enhancement film and upper bright enhancement film.

The utility model has the following advantages：

By the way that dark-coloured single side before viewing area is punched, to be first pasted onto to the lower face of frame main body, then by frame main body with The viscous punching together of dark-coloured single side forms viewing area, and the edge for keeping dark-coloured single side viscous is consistent with the edge of viewing area to be aligned, with craft Dark-coloured single side is pasted to the lower face for being attached to frame main body（The periphery of viewing area）It compares, it can be ensured that zero deflection, perfectly aligned, display Area edge is without bright line.

Description of the drawings

Fig. 1 is the schematic cross-sectional view of backlight module in the utility model；

Fig. 2 is the structural schematic diagram of the middle metal frame of the utility model backlight module；

Fig. 3 is that the middle metal frame of the utility model backlight module and dark-coloured single side are sticked to the preceding structure with after punching of punching and show It is intended to 1；

Fig. 4 is that the middle metal frame of the utility model backlight module and dark-coloured single side are sticked to the preceding structure with after punching of punching and show It is intended to 2；

Fig. 5 is the schematic cross-sectional view that the utility model backlight module is further improved.

Specific implementation mode

The utility model is described in detail with reference to the accompanying drawings and examples, the examples of the embodiments are in attached drawing In show, in which the same or similar labels are throughly indicated same or similar elements or with the same or similar functions Element.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, and cannot understand For limitations of the present invention.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair The limitation of the utility model.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu Calmly ", the terms such as " setting " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, can also be electrical connection；It can be directly connected, can also may be used also indirectly connected through an intermediary To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art, The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

As shown in Figure 1, Figure 2, the utility model embodiment provides a kind of backlight module, including backboard 1 and solid with backboard 1 The middle metal frame 2 connect, the backboard 1 have bottom plate 11 and are folded upward at the side plate 12 of extension, the middle metal frame 2 by bottom plate 11 The side frame 22 of extension is bent downward with frame main body 21 and by frame main body 21, the side plate 12 houses the back of the body with affixed formed of side frame 22 The space of the other components of optical module.

It is stacked gradually from the bottom up on the bottom plate 11 equipped with reflector plate 3, light guide plate 4 and optical film group 5, the light guide plate 4 have at least one side as incidence surface and upper surface as light-emitting surface, incidence surface, the backlight module of correspondence light guide plate 4 It is additionally provided with luminescence component 6, as shown, the luminescence component 6 is arranged on the madial wall of side plate 12.Further, the hair Optical assembly 6 includes wiring board 61 and the LED light 62 that is arranged in assist side 61, and what the socket of LED light 62 corresponded to light guide plate 4 enters light Face；The one side of the wiring board 61 is welded with LED light 62, and opposite another side is bonded in the madial wall of side plate 12 by adhesive On, the adhesive is preferably thermal paste, but not limited to this.

For wiring board 61 for connecting energization with external circuit, LED light 62 sends out linear light source after energization, enters light guide plate 4 It is inside converted into equably area source, the light for being incident to 4 bottom of light guide plate can be reflected back in light guide plate 4 by reflector plate 3, improve profit With rate.The optical film group 5 is arranged on the light-emitting surface of light guide plate 4, and the light to make light guide plate 4 project more uniformly is shown Show.

The frame main body 21 has viewing area W, to make light show, in order to make around the viewing area W of frame main body 21 No bright line generates, and the lower face of the frame main body 21 is also pasted with dark-coloured single side viscous 7, and viewing area W is integrally rushed with dark-coloured single side station It cuts to be formed.

By the way that dark-coloured single side viscous 7 before viewing area W punchings, to be first pasted onto to the lower faces of frame main body 21, then by frame master Body 21 forms viewing area W with dark-coloured single side viscous 7 together punching, keeps the edge of dark-coloured single side viscous 7 consistent with the edge of viewing area W right Together, dark-coloured single side viscous 7 is attached to the lower face of frame main body 21 with craft（The periphery of viewing area W）It compares, it can be ensured that zero deflection, It is perfectly aligned.

Dark-coloured single side viscous 7 described in the utility model can be black or grey, but not limited to this, color can be realized The barrier effect of light is used equally for the utility model.

As shown in Figure 3, Figure 4, as a further improvement, can be the dead color of a monoblock before viscous 7 punching of the dead color single side Single side viscous 7 is pasted onto on the lower face of frame main body 21（Fig. 3）, can also be that each edge of corresponding frame main body 21 cuts and is in strip shape The dark-coloured single side of shape viscous 7（Fig. 4）, the edge lines of the viscous 7 covering viewing area W of the dark-coloured single side of bar shape are excellent in the utility model It is selected as the dark-coloured single side viscous 7 of bar shape, material can be saved.

Optical film group described in the utility model 5 is included at least and is cascading from the bottom up in 4 light-emitting surface of light guide plate On diffusion barrier 51, lower bright enhancement film 52 and upper bright enhancement film 53, to make light guide plate 4 be emitted light it is more uniform.

Further, as shown in figure 5, the light guide plate 4 is additionally provided with viscose glue in the lower face of one end far from luminescence component 6 Agent 8, the adhesive 8 make light guide plate 4 be adhesively fixed with bottom plate 11, and then realize the light guide plate 8 far from 6 one end of luminescence component It is fixed.Preferably, the adhesive 8 is double-sided adhesive.

The thickness of the light guide plate 4 is gradually thinning from the near to the distant apart from luminescence component 6, and the lower face of light guide plate 4 is oblique Face, upper surface are horizontal plane, can reduce the cost of manufacture of light guide plate 4.Due to light guide plate 4 apart from luminescence component 6 remoter, light guide plate 4 thickness is thinner, then the double-sided adhesive 8 needed, which will be thickened accordingly just, can make the upper surface holding of light guide plate 4 horizontal, and thicken Double-sided adhesive 8 can enhance viscous force, and light guide plate 4 is made to be more solidly fixed on bottom plate 11.

Finally, it should be noted that above example be only to illustrate the embodiment of the present invention technical solution rather than to its into Row limitation, although the embodiment of the present invention is described in detail with reference to preferred embodiment, those skilled in the art It should be understood that the technical solution of the embodiment of the present invention can be still modified or replaced equivalently, and these are changed or wait The range of modified technical solution disengaging technical solution of the embodiment of the present invention cannot also be made with replacement.

Claims (9)

1. backlight module, including backboard and the middle metal frame affixed with backboard, the backboard has bottom plate and is bent up by bottom plate The side plate extended is rolled over, the middle metal frame has frame main body and bends downward the side frame of extension, the side plate and side by frame main body Frame is affixed, which is characterized in that there is the frame main body viewing area, the lower face of frame main body to be also pasted with dark-coloured single side and glue, display Integrally punching is formed with dark-coloured single side station in area.

2. backlight module as described in claim 1, which is characterized in that the dead color single side glues for black or grey.

3. backlight module as described in claim 1, which is characterized in that it is bar shape, item that the dead color single side sticking, which is cut preceding, The dark-coloured single side of shape shape covers lid edge of display area line.

4. backlight module as described in claim 1, which is characterized in that stacked gradually from the bottom up equipped with reflection on the bottom plate Piece, light guide plate and optical film group.

5. backlight module as claimed in claim 4, which is characterized in that the light guide plate has at least one side as incidence surface With upper surface as light-emitting surface, incidence surface, the backlight module of corresponding light guide plate are additionally provided with luminescence component.

6. backlight module as claimed in claim 5, which is characterized in that the luminescence component includes wiring board and is arranged in circuit LED light on plate.

7. backlight module as claimed in claim 6, which is characterized in that the one side of the wiring board is welded with LED light, another side It is bonded on the madial wall of side plate by adhesive.

8. backlight module as claimed in claim 7, which is characterized in that the adhesive is thermal paste.

9. backlight module as claimed in claim 4, which is characterized in that the optical film group includes stacking gradually to set from the bottom up Set diffusion barrier, lower bright enhancement film and upper bright enhancement film on light guide plate light-emitting surface.