CN208488624U - A kind of narrow frame bar shaped LCD screen backlight mould group - Google Patents

Abstract

The utility model discloses a kind of narrow frame bar shaped LCD screen backlight mould group, including the front frame being oppositely arranged up and down and backboard, and the liquid crystal display panel, diffusion sheet, composite membrane, light guide plate and the reflector plate that are located between front frame and backboard from top to bottom；The front side of backboard is connect with preceding center, rear side is connect with rear center, the ontology of preceding center sets the first plate and the second plate in length direction, and the ontology of rear center sets third plate and the 4th plate in length direction, and the second plate and the 4th plate carry out lock with the bottom surface of backboard and pay；The left and right sides of backboard is connect with left frame and right center respectively, and the first plate, third plate, backboard, left frame and right center form the space for accommodating diffusion sheet, composite membrane, light guide plate and reflector plate.Backlight module front and rear sides do not have to the size for accounting for width direction using the screwed lock in the utility model；Using aluminum profile, stabilized structure meets different demands, and production is flexible.

Description

A kind of narrow frame bar shaped LCD screen backlight mould group

Technical field

The utility model relates to field of liquid crystal display more particularly to a kind of narrow frame bar shaped LCD screen backlight mould groups.

Background technique

The general structure that the preceding center and rear center of bar shaped LCD screen backlight mould group are connect with backboard in the prior art As shown in figure 5, preceding center and rear center need to occupy the space of backlight module front and rear sides with backboard after connecting, so that backlight mould The hem width of group front frame increases, and limits use scope.

Backlight module used by used bar shaped liquid crystal display has following methods currently on the market:

1. developing glue frame and backboard mold again, process and assemble is high-efficient, the disadvantage is that exploitation plastic cement and sheet metal mould need The product of huge cost, small lot is at all unbearable；

2. making backboard and center by the way of the processing of metal plate palm, overall structural strength is poor, and technics comparing is cumbersome.

In view of problems existing in the prior art, this case designer connected applications are practical, actively studied Innovation, to provide a kind of small product outline size width, good integral strength and narrow frame bar shaped liquid crystal display at low cost Backlight module.

Utility model content

In order to solve the problems in the existing technology, the utility model provides a kind of narrow frame bar shaped liquid crystal display Backlight module can reduce product outline size width, and can need a set of section bar mold to meet client's different demands, so that The production of backlight module is flexible, and the technical solution is as follows:

The utility model provides a kind of narrow frame bar shaped LCD screen backlight mould group, before being oppositely arranged up and down Frame and backboard, and the liquid crystal display panel, diffusion sheet, composite membrane, the light guide plate that are arranged between the front frame and backboard from top to bottom And reflector plate；

The front side of the backboard is connect with preceding center, and rear side is connect with rear center, and the ontology of the preceding center is in length Direction is equipped with the first plate and the second plate, so that the preceding center is at flowering structure: first plate and the second plate It is arranged at the same side of the preceding center body length direction, and first plate and the second plate are arranged in parallel, it is described The width of first plate less than the second plate width, it is described after the ontology of center be equipped with third plate and the in the longitudinal direction Four plates, so that center is at flowering structure after described: the third plate and the 4th plate are arranged at the rear center ontology The same side of length direction, and the third plate and the 4th plate are arranged in parallel, the width of the third plate is less than the 4th The width of plate, wherein second plate is used to carry out lock with the bottom surface of the backboard to pay, and the 4th plate is used for and institute The bottom surface for stating backboard carries out lock and pays；

The backlight module further includes the lamp bar being arranged on the inner sidewall of preceding center and/or rear center, the backboard The left and right sides is connect with left frame and right center respectively, first plate, third plate, backboard, left frame and right center shape At the space for accommodating the diffusion sheet, composite membrane, light guide plate and reflector plate, the liquid crystal display panel be erected at first plate and On third plate.

Further, second plate and the 4th plate are knuckle joint structure, and second plate has first Plane and the second plane lower than the first plane, the 4th plate are equipped with third plane and Siping City lower than third plane Face, the backboard are mounted in the second plane of second plate and the fourth plane of the 4th plate, the backboard Top surface and the first plane of the second plate and the third planes align of the 4th plate；

Multiple first apertures are equipped on second plate and the 4th plate, the bottom surface of the backboard offers and first Second aperture of apertures in alignment, it is by installing fastener in the first aperture and the second aperture that the preceding center and rear center is equal It is fixed with the backboard.

Further, the inner sidewall of the left frame is equipped with the first limiting section, and the inner sidewall of the right center is equipped with The rear and front end of second limiting section, the rear and front end of first limiting section and the left frame has a certain distance, and institute The rear and front end of the rear and front end and the right center of stating the second limiting section has a certain distance, with described for being respectively set The left and right ends of preceding center and rear center；

Second limiting section of the first limiting section of the left frame and the right center with first plate and third Plate flushes so that the first plate of the second limiting section of the first limiting section of the left frame, right center, preceding center, it is rear in The third plate of frame and backboard bottom surface form the space for accommodating the diffusion sheet, composite membrane, light guide plate and reflector plate.

Further, being respectively arranged on the left side and the right side for the backboard is fixed with its integrally formed first fixed plate and second Plate, first fixed plate and the second fixed plate are moved left and right for limiting diffusion sheet, composite membrane, light guide plate and reflector plate；

The diffusion sheet, composite membrane, light guide plate and reflector plate the left and right sides be equipped with the projective structure leant out outward, it is described It is equipped with the evacuation diffusion sheet, composite membrane, light guide plate and reflector plate in first fixed plate and the second fixed plate and protrudes above structure Notch.

Further, the inner left wall of the front frame is bonded with the left side outer wall of the left frame, the right side of the front frame Inner wall is bonded with the outer right wall of the right center.

Further, the preceding center, rear center, left frame and right center are made of aluminum profile.

Further, the diffusion sheet is the first diffusion sheet, and the composite membrane is the first composite membrane, and the backlight module is also Including the second diffusion sheet and the second composite membrane, first diffusion sheet, the first composite membrane, the second composite membrane, the second diffusion sheet are suitable Sequence setting.

Further, the front frame is equipped with multiple first mounting holes, offers on the left frame and right center and the Corresponding second mounting hole of one mounting hole, by the first mounting hole and the second mounting hole install fastener by the front frame with The backboard is fixed.

Further, the preceding center and/or rear center are equipped with lacking for the COF plate for avoiding the liquid crystal display panel Mouthful.

Further, the lamp bar is left lamp bar and right lamp bar, and the left lamp bar and right lamp bar pass through bonding mode in straight Line is arranged on the inner sidewall of preceding center corresponding with COF plate or rear center.

Technical solution bring provided by the utility model has the beneficial effect that:

A. the inside of preceding center and rear center is paid with backboard lock respectively, solve product side the screwed lock from structure and The problem of increasing product size, thus reduce product shape width dimensions, therefore the application of product can be more extensive；

B. the preceding center of aluminum profile, rear center, left frame and right center are used, backboard and front frame use metal plate mode, with pure Metal plate product is compared with common aluminium profile product, and structural strength greatly increases；

C. it is compared with mould product, needs a set of section bar mold to meet client's different demands, so that the life of backlight module It produces flexibly, even if in addition several, tens be pilots, cost that can also be very low produces.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 is the detonation configuration signal of narrow frame bar shaped LCD screen backlight mould group provided by the embodiment of the utility model Figure；

Fig. 2 is the backboard and preceding center of narrow frame bar shaped LCD screen backlight mould group provided by the embodiment of the utility model The top view connected with rear center；

Fig. 3 is the side view of the preceding center of narrow frame bar shaped LCD screen backlight mould group provided by the embodiment of the utility model Figure；

Fig. 4 is the backboard and preceding center of narrow frame bar shaped LCD screen backlight mould group provided by the embodiment of the utility model The side view connected with rear center；

Fig. 5 is the common back board structure figure of bar shaped LCD screen backlight mould group in the prior art.

Wherein, appended drawing reference includes: 1- front frame, 2- liquid crystal display panel, the first diffusion sheet of 3-, the first composite membrane of 4-, 5- second Composite membrane, the second diffusion sheet of 6-, 7- light guide plate, 8- reflector plate, the right center of 9-, the left frame of 10-, the left lamp bar of 11-, the right lamp of 12- Item, center after 13-, 131- third plate, the 4th plate of 132-, center before 14-, the first plate of 141-, the second plate of 142-, 15- backboard, the first fixed plate of 151-, the second fixed plate of 152-.

Specific embodiment

In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered When the range for belonging to the utility model protection.

It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing, " second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way The data used are interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can be in addition at this In illustrate or description those of other than sequence implement.In addition, term " includes " and " having " and their any deformation, meaning Figure be to cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, device, product or equipment Those of be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, Other intrinsic step or units of method, product or equipment.

In one embodiment of the utility model, a kind of bar shaped LCD screen backlight mould group is provided, referring to Fig. 1, It include include the front frame 1 being oppositely arranged up and down and backboard 15, and be arranged between the front frame 1 and backboard 15 from top to bottom Liquid crystal display panel 2, diffusion sheet, composite membrane, light guide plate 7 and reflector plate 8；

The front side of the backboard 15 is connect with preceding center 14, and rear side is connect with rear center 13, the sheet of the preceding center 14 Body is equipped with the first plate 141 and the second plate 142 in the longitudinal direction, so that the preceding center 14 is at flowering structure: described One plate 141 and the second plate 142 are arranged at the same side of 14 body length direction of preceding center, and first plate 141 and second plate 142 be arranged in parallel, the width of first plate 141 less than the second plate 142 width, it is described after in The ontology of frame 13 is equipped with third plate 131 and the 4th plate 132 in the longitudinal direction, so that center 13 is at following knot after described Structure: the third plate 131 and the 4th plate 132 be arranged at it is described after 13 body length direction of center the same side, and institute It states third plate 131 and the 4th plate 132 is arranged in parallel, the width of the width of the third plate 131 less than the 4th plate 132 The specific structure of degree, preceding center 14 and rear center 13 is referring to Fig. 3 and Fig. 4, wherein second plate 142 is used for and the back The bottom surface of plate 15 carries out lock and pays, and the 4th plate 132 is used to carry out lock with the bottom surface of the backboard 15 to pay, the liquid crystal display panel 2 are erected at first plate 141, on third plate 131, and the inside of preceding center 14 and rear center 13 is paid with backboard lock respectively, Without accounting for the size of backlight module width direction, the border width of front frame 1 can be made (frame refers to structure shown in Fig. 5 arrow) Metal plate product in compared with the prior art reduces 3-6mm, thus reduce backlight module shape width dimensions, therefore its application can more Extensively；And since preceding center, rear center, left frame and right center are aluminium profile structure, guarantee that backlight module outer dimension is wide While degree narrows, the structural strength of product is greatly increased.

It is as follows that the bottom surface of above-mentioned preceding center 14 and rear center 13 and the backboard 15 carries out the specific embodiment that lock is paid: excellent Selection of land, the second plate 142 of the preceding center 14 and the 4th plate 132 of rear center 13 are knuckle joint structure, specific to tie Structure has the first plane and the second plane lower than the first plane, the 4th plate 132 referring to Fig. 3, second plate 142 Equipped with third plane and lower than the fourth plane of third plane, it is second flat to be mounted on second plate 142 for the backboard 15 In the fourth plane of face and the 4th plate 132, the top surface of the backboard 15 and the first plane of the second plate 142 and described The third planes align of 4th plate 132；Second plate 142 and the 4th plate 132 and backboard carry out the specific structure of lock pair such as Shown in Fig. 2, multiple first apertures are equipped on second plate 142 and the 4th plate 132, the bottom surface of the backboard 15 opens up There is the second aperture with the first apertures in alignment, it is optional by installing fastener described in fastener in the first aperture and the second aperture The preceding center 14 and rear center 13 are fixed with the backboard 15 for M3 countersunk head screw, the second plate 142 of preceding center 14 It is paid respectively with backboard lock with the 4th plate 132 of rear center 13, without accounting for the size of backlight module width direction, meanwhile, when need When wanting the backlight module of different in width, the size of preceding center 14 and rear center 13 is remained unchanged, by adjusting backboard 15, left frame 10, the size of right center 9, liquid crystal display panel 2, front frame 1, diffusion sheet, composite membrane, light guide plate 7 and reflector plate 8 meets practical need It wants, therefore, need to only open up one set of die according to different requirements, to reduce production cost, improve assembly efficiency.

The specific embodiment that the left frame 11 and the right center 9 are connect with the left and right sides of backboard 15 is as follows: institute The left and right sides for stating backboard 15 is connect with left frame 10 and right center 9 respectively, and the inner sidewall of the left frame 10 is equipped with first Limiting section, the inner sidewall of the right center 9 are equipped with the second limiting section, the rear and front end of first limiting section with it is described left The rear and front end of frame 10 has a certain distance, and the front and back two of the rear and front end of second limiting section and the right center 9 End has a certain distance, with the left and right ends for the preceding center 14 and rear center 13 to be respectively set；

Second limiting section of the first limiting section of the left frame 10 and the right center 9 with first plate 141 It is flushed with third plate 131, so that the second limiting section of the first limiting section of the left frame 10, right center 9, preceding center 14 First plate 141, the third plate 131 of rear center 13 and 15 bottom surface of backboard, which are formed, to be accommodated the diffusion sheet, composite membrane, leads (diffusion sheet is the first diffusion sheet 3, and the composite membrane is the first composite membrane 4, the backlight in the space of tabula rasa 7 and reflector plate 8 Mould group further includes the second diffusion sheet 6 and the second composite membrane 5, first diffusion sheet 3, the first composite membrane 4, the second composite membrane 5, Second diffusion sheet 6 is sequentially arranged).

Preferably, the backboard 15 is respectively arranged on the left side and the right side and its integrally formed first fixed plate 151 and second Fixed plate 152, referring to fig. 4, first fixed plate 151 and the second fixed plate 152 are respectively used to fix left frame specific structure 10 and right center 9, it is preferable that first fixed plate 151 and the second fixed plate 152 set that there are two mounting hole, the left frames 10 are equipped with two mounting holes corresponding with two mounting holes in the first fixed plate 151, and the right center 9 is equipped with to be consolidated with second Corresponding two mounting holes of two mounting holes on fixed board 152, by installing M3 countersunk head screw in mounting hole for the first fixed plate 151 and second fixed plate 152 carried out respectively with left frame 10 and right center 9 lock pay；The diffusion sheet, composite membrane, light guide plate 7 The projective structure leant out outward is equipped with the left and right sides of reflector plate 8, in first fixed plate 151 and the second fixed plate 152 It is equipped with and avoids the notch that the diffusion sheet, composite membrane, light guide plate 7 and reflector plate 8 protrude above structure, for limiting the expansion Discrete piece, composite membrane, light guide plate 7 and reflector plate 8 all around move.

Preferably, the preceding center 14 and/or rear center 13 are equipped with the COF plate for avoiding the liquid crystal display panel 2 Notch；The backlight module further includes the lamp bar being arranged on the inner sidewall of preceding center 14 and/or rear center 13, and the lamp bar is Left lamp bar 11 and right lamp bar 12, the left lamp bar 11 and right lamp bar 12 are linearly arranged in corresponding with COF plate by bonding mode Preceding center 14 or rear center 13 inner sidewall on, the light that the lamp bar issues enters light guide plate 7, by the anti-of 7 rear of light guide plate It penetrates piece 8 to reflect 2 direction of liquid crystal display panel of the light in light guide plate 7 forwards, center 14 before being attached to lamp bar using heat-conducting glue And/or on the inner sidewall of rear center 13, assembling is facilitated, is reduced costs, while nor affecting on heat dissipation.

Further, the preceding center 14, rear center 13, left frame 10, right center 9 are made of aluminum profile, the backboard It is made by metal plate, integrally-built production enhances overall structural strength using aluminum profile collocation metal plate mode.

Further, the inner left wall of the front frame 1 is bonded with the left side outer wall of the left frame 10, the front frame 1 Right side inner wall is bonded with the outer right wall of the right center 9.

The utility model provides a kind of narrow frame bar shaped LCD screen backlight mould group, the inside of preceding center and rear center It is paid respectively with backboard lock, without accounting for the size of width direction, thus reduce product shape width dimensions, therefore the application of product can more Add extensively；It is manufactured using aluminum profile collocation metal plate mode, stabilized structure；It is compared with mould product, a set of section bar mold is needed Meet client's different demands, so that the production of backlight module is flexible.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (10)

1. a kind of narrow frame bar shaped LCD screen backlight mould group, which is characterized in that including the front frame (1) that is oppositely arranged up and down and Backboard (15), and the liquid crystal display panel (2), diffusion sheet, compound being arranged between the front frame (1) and backboard (15) from top to bottom Film, light guide plate (7) and reflector plate (8)；

The front side of the backboard (15) is connect with preceding center (14), and rear side is connect with rear center (13), the preceding center (14) Ontology be equipped with the first plate (141) and the second plate (142) in the longitudinal direction so that the preceding center (14) is at following knot Structure: first plate (141) and the second plate (142) are arranged at the same of preceding center (14) body length direction Side, and first plate (141) and the second plate (142) are arranged in parallel, the width of first plate (141) is less than second The ontology of the width of plate (142), the rear center (13) is equipped with third plate (131) and the 4th plate in the longitudinal direction (132), so that center (13) is at flowering structure after described: the third plate (131) and the 4th plate (132) are arranged at institute The same side of rear center (13) body length direction is stated, and the third plate (131) and the 4th plate (132) are arranged in parallel, Width of the width of the third plate (131) less than the 4th plate (132), wherein second plate (142) is used for and institute The bottom surface for stating backboard (15) carries out lock and pays, and the 4th plate (132) is used to carry out lock with the bottom surface of the backboard (15) to pay；

The backlight module further includes lamp bar of the setting on the inner sidewall of preceding center (14) and/or rear center (13), the back The left and right sides of plate (15) is connect with left frame (10) and right center (9) respectively, first plate (141), third plate (131), backboard (15), left frame (10) and right center (9), which are formed, accommodates the diffusion sheet, composite membrane, light guide plate (7) and reflection The space of piece (8), the liquid crystal display panel (2) are erected on first plate (141) and third plate (131).

2. narrow frame bar shaped LCD screen backlight mould group according to claim 1, which is characterized in that second plate (142) and the 4th plate (132) is knuckle joint structure, and second plate (142) has the first plane and lower than first Second plane of plane, the 4th plate (132) are equipped with third plane and the fourth plane lower than third plane, the backboard (15) it is mounted in the second plane of second plate (142) and the fourth plane of the 4th plate (132), the backboard (15) top surface and first plane of the second plate (142) and the third planes align of the 4th plate (132)；

Multiple first apertures are equipped on second plate (142) and the 4th plate (132), the bottom surface of the backboard (15) is opened Equipped with the second aperture with the first apertures in alignment, by installing fastener in the first aperture and the second aperture for the preceding center (14) and rear center (13) is fixed with the backboard (15).

3. narrow frame bar shaped LCD screen backlight mould group according to claim 2, which is characterized in that the left frame (10) inner sidewall is equipped with the first limiting section, and the inner sidewall of the right center (9) is equipped with the second limiting section, first limit The rear and front end in position portion and the rear and front end of the left frame (10) have a certain distance, and the front and back of second limiting section The rear and front end of both ends and the right center (9) has a certain distance, with for be respectively set the preceding center (14) and after The left and right ends of center (13)；

Second limiting section of the first limiting section of the left frame (10) and the right center (9) with first plate (141) it is flushed with third plate (131), so that the second of the first limiting section of the left frame (10), right center (9) limits Portion, the first plate (141) of preceding center (14), the third plate (131) of rear center (13) and backboard (15) bottom surface, which are formed, to hold Receive the space of the diffusion sheet, composite membrane, light guide plate (7) and reflector plate (8).

4. narrow frame bar shaped LCD screen backlight mould group according to claim 1, which is characterized in that the backboard (15) Be respectively arranged on the left side and the right side and its integrally formed first fixed plate (151) and the second fixed plate (152), described first is fixed Plate (151) and the left frame (10) carry out lock and pay, and the second fixed plate (152) and the right center (9) carry out lock and pay；

The diffusion sheet, composite membrane, light guide plate (7) and reflector plate (8) the left and right sides be equipped with the projective structure leant out outward, institute It states and is equipped with the evacuation diffusion sheet, composite membrane, light guide plate (7) and instead in the first fixed plate (151) and the second fixed plate (152) Penetrate the notch that piece (8) protrudes above structure.

5. narrow frame bar shaped LCD screen backlight mould group according to claim 1, which is characterized in that the front frame (1) Inner left wall be bonded with the left side outer wall of the left frame (10), the right side inner wall of the front frame (1) and the right center (9) Outer right wall fitting.

6. narrow frame bar shaped LCD screen backlight mould group according to claim 1, which is characterized in that the preceding center (14), rear center (13), left frame (10) and right center (9) are made of aluminum profile.

7. narrow frame bar shaped LCD screen backlight mould group according to claim 1, which is characterized in that the diffusion sheet is First diffusion sheet (3), the composite membrane are the first composite membrane (4), and the backlight module further includes the second diffusion sheet (6) and second Composite membrane (5), first diffusion sheet (3), the first composite membrane (4), the second composite membrane (5), the second diffusion sheet (6) are sequentially set It sets.

8. narrow frame bar shaped LCD screen backlight mould group according to claim 1, which is characterized in that the front frame (1) Multiple first mounting holes are equipped with, offer corresponding with the first mounting hole second on the left frame (10) and right center (9) Mounting hole, it is by installing fastener in the first mounting hole and the second mounting hole that the front frame (1) and the backboard (15) is solid It is fixed.

9. narrow frame bar shaped LCD screen backlight mould group according to claim 1, which is characterized in that the preceding center (14) and/or rear center (13) is equipped with the notch for avoiding the COF plate of the liquid crystal display panel (2).

10. narrow frame bar shaped LCD screen backlight mould group according to claim 9, which is characterized in that the lamp bar is Left lamp bar (11) and right lamp bar (12), the left lamp bar (11) and right lamp bar (12) by bonding mode be linearly arranged in On the inner sidewall of the corresponding preceding center (14) of COF plate or rear center (13).