CN206411378U - Side entrance back module and display device - Google Patents

Abstract

The utility model is related to back light model setting technology field, disclose a kind of side entrance back module, including backboard, it is arranged at the light guide plate on backboard, it is arranged at the diffusion sheet on light guide plate, and be arranged on the LED light bar of light guide plate incident side, diffusion sheet LED light bar side is provided with black foam piece, the foam piece is fixed on the exiting surface of diffusion sheet face away from light guide.In addition, a kind of display device is also disclosed, including above-mentioned side entrance back module.Side entrance back module and display device that the utility model embodiment is proposed, pass through the side fixed black foam piece on the exiting surface of diffusion sheet close to LED light bar, so that some light for injecting light guide plate incident side is absorbed by foam piece, so, light is absorbed using the foam piece of black, has desalinated the light that LED light bar front is projected, so that avoiding light guide plate incident side lamp shadow phenomenon occurs, and then the optical quality of side entrance back module is improved, also just improve the quality of display device.

Description

Side entrance back module and display device

Technical field

The utility model is related to the technical field of backlight module, more particularly to a kind of side entrance back module and display are set It is standby.

Background technology

At present, the price more and more higher of in the market liquid-crystalline glasses, but display device price of complete machine but drops many times, manufacture The production cost of business can only drop many times.The scheme of the display device cost declining of existing side entrance back module is generally by subtracting Lack a number for LED lamp bead to realize, and LED lamp bead can make it that the gap width between lamp bead is bigger than normal after reducing.Sent out by LED lamp bead An illumination blind area just occurs between the influence of angular, adjacent LED lamp bead, so as to cause LED lamp bead position Partially bright, the position between adjacent two LED lamp bead is partially dark, has also resulted in the problem of module incident side lamp shadow is bad.

Utility model content

The purpose of this utility model is to provide a kind of side entrance back module and display device, it is intended to solve prior art In, existing side entrance back module reduces LED lamp bead because needing reducing cost, causes the incident side of backlight module lamp shadow occur Bad the problem of.

The utility model embodiment provides a kind of side entrance back module, for display device, the side entrance back Module includes backboard, is arranged at the light guide plate on the backboard, is arranged at the diffusion sheet on the light guide plate, and be arranged at institute State on the LED light bar of light guide plate incident side, the diffusion sheet and the LED light bar side is provided with black foam piece, and The foam piece is on the diffusion sheet dorsad exiting surface of the light guide plate.

Preferably, the foam piece by sticking double faced adhesive tape on the diffusion sheet dorsad exiting surface of the light guide plate.

Preferably, the substrate color of the double faced adhesive tape is black.

Further, the backboard includes bottom plate, and the surrounding edge being integrally surrounded on around the bottom plate.

Further, multiple locating slots are offered on the edge of the surrounding edge, the edge of the diffusion sheet stretches out shape Into there is locating piece, the locating piece, which is inserted into the locating slot, forms positioning.

Further, the LED light bar includes being arranged at the substrate of the light guide plate incident side, is fixed on the substrate Multiple LED lamp beads, and the socket being fixed on the substrate, the socket is electrically connected with the LED lamp bead.

The utility model embodiment additionally provides a kind of display device, and the display device includes described side entrance back Module.

Based on above-mentioned technical proposal, compared with prior art, the side entrance back module that the utility model embodiment is proposed And display device, pass through the side fixed black foam piece on diffusion sheet exiting surface close to LED light bar so that inject light guide plate The some light of incident side is absorbed by foam piece, in this way, absorbing light using black foam piece, has desalinated LED light bar front and has penetrated The light gone out, so that avoiding light guide plate incident side lamp shadow phenomenon occurs, and then improves the optics matter of side entrance back module Amount, also just improves the quality of display device.

Brief description of the drawings

Fig. 1 is the partial structural diagram for the side entrance back module that the utility model embodiment is proposed；

Fig. 2 is the enlarged diagram of part A in Fig. 1；

Fig. 3 is the enlarged diagram of part B in Fig. 1；

The partial structural diagram that Fig. 4 is fixed on diffusion sheet for the foam piece in the utility model embodiment；

Fig. 5 is the biopsy cavity marker devices schematic diagram for the display device that the utility model embodiment is proposed.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain The utility model, is not used to limit the utility model.

It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can be with It is directly to another element or may be simultaneously present centering elements.

In addition, it should also be noted that, the orientation term such as left and right, upper and lower in the utility model embodiment, is only mutual It is relative concept or using the normal operating condition of product as reference, and should not be regarded as restrictive.Tie below Specific embodiment is closed realization of the present utility model is described in detail.

As shown in Figures 1 to 5, the utility model embodiment proposes a kind of side entrance back mould for display device Group, the side entrance back module includes backboard 1, light guide plate 2, diffusion sheet 3 and LED light bar 4, wherein, light guide plate 2 is laid on backboard On 1, diffusion sheet 3 is laid on light guide plate 2, and LED light bar 4 is fixed in backboard 1, and positioned at light guide plate 2 incident side and both Separately.In addition, on diffusion sheet 3 close to LED light bar 4 a side surface on be provided with black can extinction foam piece 5, this In, the foam piece 5 is specifically fixed on the exiting surface of face away from light guide 2 of diffusion sheet 3, and the foam piece 5 is covered with diffusion sheet 3 and gone out Place side in smooth surface.As described above, the side entrance back module that the utility model embodiment is proposed, by diffusion sheet 3 Exiting surface on close to LED light bar 4 side fixed black foam piece 5 so that inject the incident side of light guide plate 2 some light Absorbed by foam piece 5, in this way, absorbing some light for injecting the incident side of light guide plate 2 using the foam piece 5 of black, desalinated LED The light that the front of lamp bar 4 is projected, so that avoiding the incident side of light guide plate 2 lamp shadow phenomenon occurs, and then improves side entrance back The optical quality of module, also just improves the quality of display device.

Further, in embodiment of the present utility model, above-mentioned foam piece 5 is viscous by double faced adhesive tape (being not drawn into accompanying drawing) Above-mentioned diffusion sheet 3 is affixed on dorsad on the exiting surface of above-mentioned light guide plate 2.Herein, the substrate color of double faced adhesive tape is preferably black, such as This, further increases extinction effect.Certainly, according to actual conditions and real needs, in other embodiment of the present utility model In, above-mentioned foam piece 5 can also be fixed on the exiting surface of above-mentioned diffusion sheet 3 by other means, not make unique restriction herein.

Further, in the utility model embodiment, above-mentioned backboard 1 may include bottom plate 11 and surrounding edge 12, the surrounding edge 12 The edge of bottom plate 11 is surrounded on, and surrounding edge 12 and bottom plate 11 are by a monoblock plate punch forming.Certainly, according to actual conditions And real needs, in other embodiment of the present utility model, above-mentioned backboard 1 can be also other structures form, not make herein only One limits.

Further, in embodiment of the present utility model, reference picture 1 and Fig. 3, the top side of above-mentioned surrounding edge 12 offer many Individual locating slot 120, multiple locating slots 120 are spaced apart in the top side of surrounding edge 12.Accordingly, the above-mentioned edge of diffusion sheet 3 is to extension Stretch and be formed with multiple locating pieces 31 with the cooperation positioning of locating slot 120.When carrying out module assembling, locating piece 31 is stretched into and housed In forming positioning in locating slot 120, in this way, passing through the location fit so that diffusion sheet 3 avoids sidesway, it is ensured that module knot The steadiness of structure.Certainly, according to actual conditions and real needs, in other embodiment of the present utility model, above-mentioned diffusion sheet 3 Location fit can be also carried out by other means with above-mentioned backboard 1, do not make unique restriction herein.

Further, in the utility model embodiment, reference picture 1, Fig. 2 and Fig. 5, above-mentioned LED light bar 4 include substrate 41st, multiple LED lamp beads 42 and socket (being not drawn into accompanying drawing), wherein, substrate 41 be arranged on the incident side of above-mentioned light guide plate 2 and with Its separately, multiple uniform intervals of LED lamp bead 42 are distributed on substrate 41 towards on a side surface of the incident side of light guide plate 2, separately Outside, socket is also secured on substrate 41 and is electrically connected with LED lamp bead 42.Certainly, according to actual conditions and real needs, at this In the other embodiment of utility model, above-mentioned LED light bar 4 can be also other structures form, not make unique restriction herein.

As shown in Figures 1 to 5, the utility model embodiment also proposed a kind of display device, and the display device includes upper State side entrance back module.Certainly, the display device also includes other components, is not described in detail herein.

The display device proposed based on above-mentioned technical proposal, the utility model embodiment, is carried on the back by using above-mentioned side entering type Optical mode group, it is to avoid lamp shadow phenomenon, improves display quality.

Embodiment described above, only the utility model embodiment, but protection domain of the present utility model is not This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed Various equivalent modifications, replacement and improvement etc., these modifications, replacement and improvement should all be covered in protection model of the present utility model Within enclosing.Therefore, protection domain of the present utility model should be defined by scope of the claims.

Claims (7)

1. side entrance back module, for display device, it is characterised in that the side entrance back module includes backboard, is set Light guide plate on the backboard, is arranged at the diffusion sheet on the light guide plate, and be arranged at the light guide plate incident side The LED light bar side is provided with black foam piece on LED light bar, the diffusion sheet, and the foam piece is located at institute Diffusion sheet is stated dorsad on the exiting surface of the light guide plate.

2. side entrance back module as claimed in claim 1, it is characterised in that the foam piece is by sticking double faced adhesive tape in institute Diffusion sheet is stated dorsad on the exiting surface of the light guide plate.

3. side entrance back module as claimed in claim 2, it is characterised in that the substrate color of the double faced adhesive tape is black.

4. the side entrance back module as described in any one of claims 1 to 3, it is characterised in that the backboard includes bottom plate, with And integrally it is surrounded on the surrounding edge around the bottom plate.

5. side entrance back module as claimed in claim 4, it is characterised in that it is multiple fixed to be offered on the edge of the surrounding edge Position groove, the edge of the diffusion sheet, which stretches out, is formed with locating piece, and the locating piece, which is inserted into the locating slot, forms fixed Position.

6. side entrance back module as claimed in claim 4, it is characterised in that the LED light bar includes being arranged at described lead The substrate of tabula rasa incident side, the multiple LED lamp beads being fixed on the substrate, and the socket being fixed on the substrate, institute Socket is stated to be electrically connected with the LED lamp bead.

7. display device, it is characterised in that the display device includes the side entrance back described in any one of claim 1 to 6 Module.