CN209373291U - A kind of liquid crystal display die set - Google Patents

Abstract

The utility model discloses a kind of liquid crystal display die sets comprising backlight module, lower substrate, upper brandreth and the FPC set gradually from bottom to top；One end of the FPC is overlapped on the lower substrate, the other end of the FPC is overlapped in the bottom of the backlight module after bending downward, the upper brandreth includes panel and the side that is extended downwardly by face plate edge, the side is set to the outside of the lower substrate and the backlight module, the side is formed with bending part to inside edge, and the height of the bending part is higher than the bending starting point of the FPC.Since side is to inside edge, burr is only formed in the end of bending part, and the height of bending starting point of the height of the end of bending part higher than FPC, so that bending part end will not scratch FPC jagged, the processing step can be synchronously completed in punching press, operating efficiency is high, reduces production cost；And seaming operation is mature, yield is high, and the probability that FPC is scratched by burr is greatly lowered, and reduces and shows undesirable happen.

Description

A kind of liquid crystal display die set

Technical field

The utility model relates to a kind of technical field of liquid crystal display, more specifically to a kind of liquid crystal display die set.

Background technique

In the liquid crystal display die set with the assembly of upper brandreth, since upper brandreth is formed by hardware stamping, upper brandreth The edge of side more or less can be there are certain burr, place FPC is easy during assembling with upper brandreth by this A little burrs are scratched, and the way of industry routine is to stick one layer of protection sheet in the jagged part of side band of upper brandreth, and protect Paper is usually to pass through to attach by hand, inefficient operation, and attaching is at high cost, and attaches error rate height by hand, still there is part FPC is scratched by burr, causes to show bad.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of liquid crystal display die set, the height of bending part should Higher than the height of lower substrate, since side is to inside edge, burr is only formed in the end of bending part, and the height of the end of bending part The height of bending starting point of the degree higher than FPC, so that bending part end will not scratch FPC jagged, which exists It can be synchronously completed when punching press, operating efficiency is high, reduces production cost；And seaming operation is mature, yield is high, is greatly lowered The probability that FPC is scratched by burr reduces and shows undesirable happen.

Technical problem to be solved in the utility model is achieved by the following technical programs:

In order to solve the above technical problems, the utility model provides a kind of liquid crystal display die set comprising from bottom to top according to Backlight module, lower substrate, upper brandreth and the FPC of secondary setting；One end of the FPC is overlapped on the lower substrate, the FPC's The other end is overlapped in the bottom of the backlight module after bending downward, the upper brandreth includes panel and from face plate edge to downward The side stretched, the side are set to the outside of the lower substrate and the backlight module, and the side is formed with to inside edge Bending part, the height of the bending part are higher than the bending starting point of the FPC.

Further, the FPC includes the golden finger, interconnecting piece and ontology for being sequentially connected setting, and the two of the interconnecting piece Side sets that there are two mutually stagger the stiffening plate of setting.

Further, the width of described two stiffening plates is different.

Further, the material of the stiffening plate is FR4, PI or stainless steel.

Further, the outer surface of the stiffening plate is equipped with diamond-shaped knurling.

Further, the ontology includes substrate layer, and the upper surface of the substrate layer is provided with circuit layer, the substrate layer Lower surface be provided with metallic radiating layer.

Further, the ontology further includes at least one through the substrate layer, the circuit layer and the metal The through-hole of heat dissipating layer, the inner wall of the through-hole are provided with the heat-conducting layer contacted with the circuit layer, the metallic radiating layer.

Further, be provided with the heat carrier connecting with external conductive structure in the through-hole, the heat carrier with it is described Heat-conducting layer is in contact.

Further, the structure of the metallic radiating layer is reticular structure, strip structure, wavelike structure or honeycomb knot Structure.

The utility model has the following beneficial effects:

The height of bending part should be higher than the height of lower substrate, and since side is to inside edge, burr is only formed in bending part End, and the height of the end of bending part higher than FPC bending starting point height so that bending part end is even if jagged FPC will not be scratched, which can synchronously complete in punching press, and operating efficiency is high, reduce production cost；And flanging work Skill is mature, and yield is high, and the probability that FPC is scratched by burr is greatly lowered, and reduces and shows undesirable happen.

Bending part is higher by the bending starting point at least 2mm of FPC, to further prevent FPC to be scratched by burr.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of liquid crystal display die set provided by the utility model.

Fig. 2 is the improvement structural schematic diagram of FPC in Fig. 1.

Fig. 3 is that the another of FPC in Fig. 1 improves structural schematic diagram.

Specific embodiment

The utility model is described in detail below with reference to embodiment, embodiment is only the preferred reality of the utility model Mode is applied, is not the restriction to the utility model.

Referring to Fig. 1, being a kind of liquid crystal display die set provided by the utility model comprising set gradually from bottom to top Backlight module 1, lower substrate 2, upper brandreth 3 and FPC4；One end of the FPC4 is overlapped on the lower substrate 2, the FPC4's The other end is overlapped in the bottom of the backlight module 1 after bending downward, the upper brandreth 3 is including panel 31 and by 31 edge of panel The side 32 extended downwardly, the side 32 be set to the lower substrate 2 and the backlight module 1 outside, the side 32 to Inside edge and be formed with bending part 33, the height of the bending part 33 is higher than the bending starting point of the FPC4.That is bending part 33 Height should be higher than the height of lower substrate 2, and since side 32 is to inside edge, burr is only formed in the end of bending part 33, and curved The height of bending starting point of the height of the end of folding part 33 higher than FPC4, so that 33 end of bending part will not scrape jagged Hurt FPC4, which can synchronously complete in punching press, and operating efficiency is high, reduce production cost；And seaming operation at Ripe, yield is high, and the probability that FPC4 is scratched by burr is greatly lowered, and reduces and shows undesirable happen.

Specifically, bending part 33 is higher by the bending starting point at least 2mm of FPC4, to further prevent FPC4 to be scratched by burr.

Referring to Fig. 2, further, the FPC4 includes the golden finger 5, interconnecting piece 6 and ontology 7 for being sequentially connected setting, The two sides of the interconnecting piece 6 set that there are two mutually stagger the stiffening plate 8 of setting.In traditional FPC4 design, it is usually not provided with benefit Stiffening plate 8 is set to the of same size of same position and stiffening plate 8, when causing to extract FPC4, pressure applied collection by strong plate 8 In on same straight line, cause FPC4 route micro- disconnected.FPC4 provided by the utility model is located at due to two stiffening plates 8 The two sides of interconnecting piece 6 and mutually stagger setting, when extracting FPC4, two sides stiffening plate 8 to FPC4 pressure not in same On line segment, stress will not be concentrated on same straight line when bending, thus stress be avoided to concentrate, and the route at golden finger 5 holds Yi Wei disconnected problem improves product yield.

Further, two signified in the utility model stiffening plates 8 for mutually staggering setting, which can be, is respectively arranged on two A different location；It is also possible to that center position is identical, but two stiffening plates 8 is of different size, as long as making two stiffening plates 8 Stress when bending does not concentrate on same straight line, can avoid stress and concentrates, and the route at golden finger 5 is easy micro- disconnected The problem of, improve product yield.In the present embodiment, stiffening plate 8 includes the first stiffening plate and the second stiffening plate, each stiffening plate 8 Width it is different, central point is in same horizontal line, so that the edge of stiffening plate 8 mutually staggers, without concentrating On same straight line.

Further, the material of the stiffening plate 8 is FR4, PI or stainless steel, in other embodiments, if FPC4 Calorific value is larger, the heat sink material of better heat-radiation effect can also be used, such as aluminium foil stiffening plate 8.

Further, the outer surface of the stiffening plate 8 is equipped with diamond-shaped knurling, so as to can be easier to extract when extracting FPC4, Reduce the risk of FPC4 rupture of line.

Referring to Fig. 3, further, which includes substrate layer 71, and the upper surface of substrate layer 71 is provided with circuit layer 72, the lower surface of substrate layer 71 is provided with metallic radiating layer 73, and set-up mode can divide for circuit layer 72, metallic radiating layer 73 Not Tong Guo sticking double faced adhesive tape on substrate layer 71.Due to the thinner thickness of substrate layer 71, the heat on ontology 7 can pass through substrate Layer 71 is diffused into metallic radiating layer 73, which can effectively increase the heat dissipation area of ontology 7, play Homogeneouslly-radiating Effect, to improve the radiating efficiency of ontology 7.Wherein substrate layer 71 can be polyimides, polyester, polysulfones or polytetrafluoro Any one in ethylene, double-sided adhesive are any one in acrylic acid glue-line or epoxy glue layer, the metallic radiating layer 73 It can be copper foil layer.

Further, ontology 7 further includes at least one through the logical of substrate layer 71, circuit layer 72 and metallic radiating layer 73 Hole 74, the inner wall of the through-hole 74 are provided with the heat-conducting layer contacted with circuit layer 72, metallic radiating layer 73, using good at through-hole 74 Heating conduction, can be electrically connected the circuit layer 72 and metallic radiating layer 73 of 71 two sides of substrate layer, play good thermally conductive function Can, and heat-conducting layer can provide thermally conductive function, to reach good heat dissipation effect.Wherein, which can be copper glue conductive oil Layer of ink.

Further, it is provided with the heat carrier connecting with external conductive structure in through-hole 74, the heat carrier is from circuit layer 72 side is connected with external conductive structure, is also in contact with the heat-conducting layer in through-hole 74, so that circuit layer 72, metal dissipate Thermosphere 73 can be connected by through-hole 74 with external conductive structure, so that the heat in ontology 7 passes through in the through-hole 74 Heat carrier diffuse to external conductive structure, to further increase the radiating efficiency of ontology 7.Preferably, in order to make through-hole 74 can To be connected with external conductive structure, which is set to the marginal position of ontology 7.

Further, the metallic radiating layer 73 be uniform radiating structure, structure can for reticular structure, strip structure, Any one in wavelike structure or honeycomb structure can preferably improve heat dissipation effect by the uniform radiating structure.

Above embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but can not Therefore it is interpreted as that a limitation on the scope of the patent of the present invention, as long as the form using equivalent substitution or equivalent transformation is obtained Technical solution, shall fall within the scope of the present invention.

Claims (9)

1. a kind of liquid crystal display die set, which is characterized in that it include the backlight module set gradually from bottom to top, lower substrate, on Brandreth and FPC；One end of the FPC is overlapped on the lower substrate, and the other end of the FPC is overlapped in described after bending downward The bottom of backlight module, the upper brandreth include panel and the side that is extended downwardly by face plate edge, and the side is set to described The outside of lower substrate and the backlight module, the side are formed with bending part to inside edge, and the height of the bending part is high In the bending starting point of the FPC.

2. liquid crystal display die set according to claim 1, which is characterized in that the FPC includes the gold for being sequentially connected setting Finger, interconnecting piece and ontology, the two sides of the interconnecting piece set that there are two mutually stagger the stiffening plate of setting.

3. liquid crystal display die set according to claim 2, which is characterized in that the width of described two stiffening plates is different.

4. liquid crystal display die set according to claim 2, which is characterized in that the material of the stiffening plate is for FR4, PI or not Become rusty steel.

5. liquid crystal display die set according to claim 2, which is characterized in that rolled equipped with diamond shape the outer surface of the stiffening plate Flower.

6. liquid crystal display die set according to claim 2, which is characterized in that the ontology includes substrate layer, the substrate The upper surface of layer is provided with circuit layer, and the lower surface of the substrate layer is provided with metallic radiating layer.

7. liquid crystal display die set according to claim 6, which is characterized in that the ontology further includes at least one through institute State the through-hole of substrate layer, the circuit layer and the metallic radiating layer, the inner wall of the through-hole be provided with the circuit layer, The heat-conducting layer of the metallic radiating layer contact.

8. liquid crystal display die set according to claim 7, which is characterized in that be provided in the through-hole and external thermally conductive knot The heat carrier of structure connection, the heat carrier are in contact with the heat-conducting layer.

9. liquid crystal display die set according to claim 6, which is characterized in that the structure of the metallic radiating layer is netted knot Structure, strip structure, wavelike structure or honeycomb structure.