CN207249302U - Backlight module - Google Patents

Abstract

The utility model discloses a kind of backlight module, including the backboard with accommodation space, the backboard is accommodating the reflector plate being stacked from the bottom up, light guide plate and optical film group, a layered paper is equipped with the outside of the backboard, hollow out forms figure on the paster, avoids figure, is further opened with aperture on the paster.By the paster that is sticked on the outside of backboard, hollow out forms figure on paster, with again compared with coding figure, reducing cost after pasting one layer of pad pasting on the outside of backboard in the prior art, improving production efficiency.

Description

Backlight module

Technical field

Technical field of liquid crystal display is the utility model is related to, relates more specifically to backlight module.

Background technology

Backlight module would generally overleaf add coding figure and be used as identification and cycle retrospect, and coding is typically all to use Black ink.Some backlight modules can overleaf paste graphite flake for heat radiation performance, since graphite flake surface is black, Spraying black ink again be able to not can show.Another situation, some backlight modules need to overleaf paste screened film to shield, and shield It is also generally black to cover film.Also a kind of situation is insulation for the back side, it is necessary to overleaf paste insulating paper.The above situation, Adding a black pad pasting（Graphite flake or screened film）Afterwards, the ink of coding is needed to change as non-black and can be in black The ink shown on pad pasting, and since the ink of non-black is of little use and an ink jet numbering machine cannot be shared with black ink, this On the one hand sample causes production efficiency to reduce, be on the other hand the increase in cost.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provide one kind can figure identification and heat dissipation performance carry High backlight module.

The utility model technique effect to be reached is realized by following scheme：A kind of backlight module, including with appearance Receive the backboard in space, the backboard is accommodating the reflector plate being stacked from the bottom up, light guide plate and optical film group, the back of the body Be equipped with a layered paper on the outside of plate, hollow out formation figure on the paster, avoids figure, is further opened with aperture on the paster.

Preferably, the material of the backboard is copper alloy.

Preferably, the light guide plate includes light in part and light guide section, and corresponding light in part, the medial surface of the backboard are additionally provided with Luminescence component.

Preferably, the luminescence component includes the wiring board that is located on backboard madial wall and sets light source in the circuit board.

Preferably, corresponding light source, the upper surface of the light in part or lower face offer heat emission hole.

Preferably, the heat emission hole is through hole or blind hole.

Preferably, transparent heat-conducting glue is also filled with the heat emission hole to cure the heat emission hole.

Preferably, the optical film group includes diffusion barrier, the lower bright enhancement film being layered in from the bottom up on light guide plate upper surface With upper bright enhancement film.

Preferably, the anti-dazzling screen being arranged on optical film group and luminescence component is further included, the anti-dazzling screen is Nian Jie with backboard.

Preferably, the paster is graphite flake, carbon nanotube ink, nano-sized carbon copper foil, nano-sized carbon aluminium foil or nano aluminum.

The utility model has the following advantages：

1st, by the paster that is sticked on the outside of backboard, hollow out forms figure on paster, with being pasted in the prior art on the outside of backboard Coding figure is compared again after one layer of pad pasting, is reduced cost, is improved production efficiency；

2nd, by the way that backboard is used Copper alloy material, paster is remarkably improved backlight module using the high material of thermal conductivity Heat dissipation performance；

3rd, heat emission hole, the heat emission hole face light are offered by the upper surface or lower face of the light in part in light guide plate Source is set, and can further improve the heat dissipation performance of backlight module.

Brief description of the drawings

Fig. 1 is the floor map of backlight module in the utility model；

Fig. 2 is A-A sectional views in Fig. 1；

Fig. 3 is the structure sectional view of three kinds of embodiments of light guide plate in Fig. 1；

Fig. 4 is the floor map of paster in Fig. 1.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and examples, the example of the embodiment is in attached drawing In show, wherein same or similar label represents same or similar element or has the function of same or like from beginning to end Element.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, without being understood that For the limitation to the utility model.

In the description of the utility model, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch State the utility model and simplify and describe, rather than instruction or imply signified device or element must have specific orientation, with Specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu Calmly ", the term such as " setting " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally； Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, may be used also To be the interaction relationship of connection inside two elements or two elements.For the ordinary skill in the art, Concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.

The backlight module that the utility model embodiment provides, the backlight module include the backboard 100 with accommodation space, The material of the backboard 100 is copper alloy, and the use of the copper alloy can effectively solve the problems, such as that backlight module generates heat.It is described Backboard 100 is provided in this embodiment to accommodate the reflector plate being stacked from the bottom up, light guide plate 300 and optical film group 400 Light guide plate 300 includes light in part 310 and light guide section 320, and corresponding light in part 310, the medial surface of the backboard 100 are additionally provided with luminous Component 500, the luminescence component include the wiring board 510 being located on 100 madial wall of backboard and the light source being located on wiring board 510 520, for the light that LED light is sent after the entrance of light in part 310, light is converted to area source from light guide section 320 via light guide section 320 Upper surface project, some light can project from the lower face of light guide section 320, but the reflection of process reflector plate can be reflected back leaded light In portion 320, finally projected from the upper surface of light guide section 320, to improve the brightness of light guide plate 300.

The backlight module of the utility model is additionally provided with a layered paper for the ease of identification and cycle retrospect, the backboard outside 600, hollow out forms figure 610 on the paster 600（It will be graphically displayed at by way of hollow out on paster）, instead of existing Figure is shown by coding in technology, production efficiency is improved, reduces cost.Preferably, the size and the back of the body of the paster 600 The size formed objects of plate 100, to improve the uniformity of the uniformity of backlight module and the display of figure 610, exquisite appearance.In order to Bubble is produced when avoiding paster 600 from putting up, several apertures 620 are offered on the paster 600, the aperture 620 avoids figure Shape 610 is set.

Pattern, symbol, word or numeral and its combination of the figure 610 for hollow out, as shown in figure 4, the figure 610 are included to show the production cycle of backboard 100 and the model of backboard, to identify backboard 100 with being clearly clear.

As a further improvement, the paster 600 is using the good material of thermal conductivity, as graphite flake, carbon nanotube ink, Nano-sized carbon copper foil, nano-sized carbon aluminium foil or nano aluminum etc., the heat of backboard is quickly conducted.The aperture 620 is set Heat dissipation can also be further speeded up by putting.

As a further improvement, corresponding light source 520, the upper surface of the light in part 310 or lower face offer heat dissipation Hole 311, the border that the heat emission hole 311 is formed can make light have multiple reflections/refraction, expand what light source 520 emitted beam Dispersion angle, reduces 520 front brightness of light source, mitigates hot spot, and the setting of the heat emission hole 311 can be further by before lamp Heat be quickly transferred to backboard 100 and then be dissipated into outside backboard 100.It should be appreciated that the heat emission hole 311 can be logical Hole 311 or blind hole 311, the shape of the heat emission hole 311 is unlimited, the ruler of the size of the heat emission hole 311 preferably with light source 520 Very little adaptation.

As a further improvement, with reference to shown in Fig. 1-Fig. 3, transparent heat-conducting glue can also be filled in the heat emission hole 311 Cure the heat emission hole 311, heat can be made more rapidly to pass.

Optical film group described in the utility model 400 is included at least and is layered in from the bottom up on 300 upper surface of light guide plate Diffusion barrier, lower bright enhancement film and upper bright enhancement film, the optical film group 400 to improve light guide plate 300 show light uniformity.

Backlight module described in the utility model further includes the shading being arranged in optical film group 400 and luminescence component 500 Piece 600, the anti-dazzling screen 600 is be bonded with backboard 100, and the anti-dazzling screen 600 is prevented to block the light around light guide plate 300 Only produce light leakage phenomena.

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

Claims (10)

1. a kind of backlight module, including the backboard with accommodation space, the backboard is accommodating what is be stacked from the bottom up Reflector plate, light guide plate and optical film group, it is characterised in that be equipped with a layered paper on the outside of the backboard, hollow out shape on the paster Into figure, avoid figure, be further opened with aperture on the paster.

2. backlight module as claimed in claim 1, it is characterised in that the material of the backboard is copper alloy.

3. backlight module as claimed in claim 1, it is characterised in that the light guide plate includes light in part and light guide section, corresponding Light in part, the medial surface of the backboard are additionally provided with luminescence component.

4. backlight module as claimed in claim 3, it is characterised in that the luminescence component includes being located on backboard madial wall Wiring board and set light source in the circuit board.

5. backlight module as claimed in claim 4, it is characterised in that corresponding light source, the light in part upper surface or under End face offers heat emission hole.

6. backlight module as claimed in claim 5, it is characterised in that the heat emission hole is through hole or blind hole.

7. the backlight module as described in claim 5 or 6, it is characterised in that transparent lead is also filled with the heat emission hole Hot glue is to cure the heat emission hole.

8. backlight module as claimed in claim 1, it is characterised in that the optical film group includes being layered in leaded light from the bottom up Diffusion barrier, lower bright enhancement film and upper bright enhancement film on plate upper surface.

9. backlight module as claimed in claim 3, it is characterised in that further include and be arranged on optical film group and luminescence component Anti-dazzling screen, the anti-dazzling screen are Nian Jie with backboard.

10. backlight module as claimed in claim 1, it is characterised in that the paster is graphite flake, carbon nanotube ink, receives Rice carbon copper foil, nano-sized carbon aluminium foil or nano aluminum.