The utility model content
In order to address the above problem, the purpose of this utility model provides a kind of flexible flat cable, utilizing conductive layer that tool metal level and patterning cover distribution to make the characteristic impedance scope of flexible flat cable integral body is between 90 Ω to 110 Ω, to satisfy the use specification requirement of LVDS signal transmssion line.
According to the utility model a kind of flexible flat cable on the one hand, it is characterized in that, comprise: one first insulating barrier; One conductor layer is arranged and is arranged on this first insulating barrier by many strip metals conductor spacing; One second insulating barrier is arranged on this conductor layer, and wherein the length of this second insulating barrier is short than this conductor layer, and these conductor layer two ends are exposed; One first conductive layer is arranged on this first insulating barrier and corresponding to the opposite side of this conductor layer, this first conductive layer covers this first insulating barrier; And one second conductive layer, patterning is arranged on this second insulating barrier and has a screening rate between 15%~45%, wherein the geometrical pattern of this second conductive layer of patterning setting with a plurality of hollow outs.
According to above-mentioned flexible flat cable, this second conductive layer comprises: one first patterning shielding portion has the geometrical pattern of a plurality of hollow outs and is arranged at this zone, second insulating barrier stage casing; And one second patterning shielding portion, have the geometrical pattern of a plurality of hollow outs and extended by the two ends of this first patterning shielding portion and be arranged at this second insulating barrier, two end regions, wherein this screening rate of this second patterning shielding portion is greater than this screening rate of this first patterning shielding portion.
According to the utility model a kind of flexible flat cable on the other hand, it is characterized in that, comprise: one first insulating barrier; One conductor layer is arranged and is arranged on this first insulating barrier by many strip metals conductor spacing; One second insulating barrier is arranged on this conductor layer, and wherein the length of this second insulating barrier is short than this conductor layer, and these conductor layer two ends are exposed; One first conductive layer is provided with and is covered on this second insulating barrier; And one second conductive layer, in this first insulating barrier and corresponding to the opposite side of this conductor layer, patterning is arranged on this first insulating barrier and has a screening rate between 15%~45%, wherein the geometrical pattern of this second conductive layer of patterning setting with a plurality of hollow outs.
According to above-mentioned flexible flat cable, this second conductive layer comprises: one first patterning shielding portion has the geometrical pattern of a plurality of hollow outs and is arranged at this zone, first insulating barrier stage casing; And one second patterning shielding portion, have the geometrical pattern of a plurality of hollow outs and extended by the two ends of this first patterning shielding portion and be arranged at this first insulating barrier, two end regions, wherein this screening rate of this second patterning shielding portion is greater than this screening rate of this first patterning shielding portion.
Useful technique effect of the present utility model is: the utility model not only has easy, soft, the anti-combustion of flexible flat cable technology, cold-resistant thermal property more can have preferable EMI effect, and the use specification requirement of satisfying the LVDS transmission line, the therefore manufacturing cost that can save the LVDS transmission line in a large number.
Description of drawings
Below by the detailed description of conjunction with figs., when the effect that can be easier to understand the purpose of this utility model, technology contents, characteristics and be reached, wherein to specific embodiment of the utility model:
Fig. 1 is the structural representation of the flexible flat cable of an embodiment of the present utility model.
Fig. 2 is the vertical view of the flexible flat cable of an embodiment of the present utility model.
Fig. 3 is the structural representation of the flexible flat cable of another embodiment of the present utility model.
Fig. 4 is the vertical view of the flexible flat cable of another embodiment of the present utility model.
Fig. 5 is the structural representation of the flexible flat cable of another embodiment of the present utility model.
Fig. 6 is the structural representation of the flexible flat cable of another embodiment of the present utility model.
Fig. 7 is the structural representation of the flexible flat cable of another embodiment of the present utility model.
Fig. 8 is the vertical view of the flexible flat cable of an embodiment of the present utility model.
Fig. 9 is the structural representation of the flexible flat cable of another embodiment of the present utility model.
Figure 10 is the upward view of the flexible flat cable of another embodiment of the present utility model.
Figure 11 is the vertical view of the flexible flat cable of an embodiment of the present utility model.
Figure 12 is the structural representation of the flexible flat cable of another embodiment of the present utility model.
Figure 13 is the structural representation of the flexible flat cable of another embodiment of the present utility model.
Embodiment
The utility model is described in detail as follows, and described preferred embodiment is only done an explanation but not in order to limit the utility model.
Please refer to Fig. 1, the structural representation for according to the flexible flat cable 1 of an embodiment of the present utility model comprises: one first insulating barrier 11, a conductor layer 12, one second insulating barrier 13, one first conductive layer 17 and one second conductive layer 14.Wherein, the composition material of first insulating barrier 11 and second insulating barrier 13 comprises polyethylene terephthalate (PET); Conductor layer 12 is arranged and is arranged on first insulating barrier 11 by many strip metals conductor spacing; Second insulating barrier 13 is arranged on the conductor layer 12, and in an embodiment, the length of second insulating barrier 13 is short than conductor layer 12, and the two ends of conductor layer 12 are exposed; First conductive layer 17 is to be made of metal, is arranged at first insulating barrier 11 and corresponding to the opposite side of conductor layer 12, covers first insulating barrier 11; Second conductive layer 14 is arranged on second insulating barrier 13, and wherein second conductive layer 14 is to be selected from the group that silver is starched, silver-colored carbon is starched, carbon is starched, aluminium paste is formed.
Then please refer to Fig. 2, be flexible flat cable 1 vertical view according to an embodiment of the present utility model.Second conductive layer 14 of flexible flat cable 1 is that patterning is arranged at second insulating barrier 13 (Fig. 1), and wherein the geometrical pattern of second conductive layer 14 of patterning setting with a plurality of hollow outs comprises: circular, oval, square, triangle, polygon etc.And the patterning screening rate of second conductive layer 14 is between 15%~45%.
Fig. 3 is the structural representation of the flexible flat cable 1 ' of another embodiment of the present utility model, is that with flexible flat cable 1 difference one first conductive layer 17 ' that metal constitutes covers second insulating barrier 13; One second conductive layer, 14 ' patterning is arranged at first insulating barrier 11 and corresponding to the opposite side of conductor layer 12, and the patterning screening rate is between 15%~45%, and material is to be selected from the group that silver slurry, silver-colored carbon slurry, carbon slurry, aluminium paste are formed.Fig. 4 is the vertical view of flexible flat cable 1 '.
The utility model is to utilize first conductive layer 17,17 ' and second conductive layer 14,14 ' setting, preferable EMI effect not only can be arranged, also making flexible flat cable 1,1 ' whole characteristic impedance scope is between 90 Ω to 110 Ω, to satisfy the use specification requirement of LVDS signal transmssion line.
Then please refer to Fig. 5, be the structural representation of another embodiment of the present utility model, also comprise an ink lay 15 and a stiffening plate 16.Ink lay 15 is covered in second conductive layer 14 on second insulating barrier 13, in order to indicate associated production information.Stiffening plate 16 is arranged at least one end of first conductive layer 17 that covers first insulating barrier 11, and when being clashed into, stiffening plate 16 is able to the buffering collision of closed power, and to reduce the probability that fracture takes place this end, for instance, the material of stiffening plate 16 can be mylar.In addition, also can comprise an insulating barrier (not icon) is arranged at first conductive layer 17 and corresponding to the opposite side of first insulating barrier 11, makes first conductive layer 17 and the external insulation.
Fig. 6 is the structural representation of another embodiment of the present utility model, also comprises an ink lay 15 and a stiffening plate 16.Stiffening plate 16 is arranged at least one end of first insulating barrier 11, when being clashed into, stiffening plate 16 is able to the buffering collision of closed power, to reduce the probability that fracture takes place this end, for instance, the material of stiffening plate 16 can be mylar, and ink lay 15 covers second conductive layer 14 ' that first insulating barrier 11 is provided with, in order to indicate associated production information.Also can comprise an insulating barrier (not icon) is arranged at first conductive layer 17 ' and corresponding to the opposite side of second insulating barrier 13, makes first conductive layer 17 ' and external insulation.
Fig. 7 is the structural representation of the flexible flat cable 2 of another embodiment of the present utility model, comprising: one first insulating barrier 21, a conductor layer 22, one second insulating barrier 23, one first conductive layer 27 and one second conductive layer 24.Wherein, the composition material of first insulating barrier 21 and second insulating barrier 23 comprises polyethylene terephthalate (PET); Conductor layer 22 is arranged and is arranged on first insulating barrier 21 by many strip metals conductor spacing; Second insulating barrier 23 is arranged on the conductor layer 22, and in an embodiment, the length of second insulating barrier 23 is short than conductor layer 22, and the two ends of conductor layer 22 are exposed; First conductive layer 27 is to be made of metal, is arranged at first insulating barrier 21 and corresponding to the opposite side of conductor layer 22, is covered in first insulating barrier 21; Second conductive layer 24 is arranged on second insulating barrier 23, and wherein second conductive layer 24 is to be selected from the group that silver is starched, silver-colored carbon is starched, carbon is starched, aluminium paste is formed.
Then please refer to Fig. 8, be flexible flat cable 2 top views according to an embodiment of the present utility model.Second conductive layer 24 (Fig. 7) of flexible flat cable 2 is that patterning is arranged at second insulating barrier 23 (Fig. 7), wherein second conductive layer 24 (Fig. 7) comprises one first patterning shielding portion 241 and one second patterning shielding portion 242, and the first patterning shielding portion 241 has the geometrical pattern of a plurality of hollow outs and is arranged at second insulating barrier 23 (Fig. 7) zone, stage casing; The second patterning shielding portion 242 has the geometrical pattern of a plurality of hollow outs and extends two end regions that are arranged at second insulating barrier 23 (Fig. 7) by the two ends of the first patterning shielding portion 241.
The above-mentioned explanation that continues, wherein the hollow out geometrical pattern of the first patterning shielding portion 241 and the second patterning shielding portion 242 comprises: circular, oval, square, triangle, polygon etc.It is noted that the first patterning shielding portion 241 and the second patterning shielding portion 242 all have a screening rate between 15%~45%, and the screening rate of the second patterning shielding portion 242 is greater than at least 20 percentages of screening rate of the first patterning shielding portion 241.For instance, the screening rate of the first patterning shielding portion 241 is roughly 15% and the screening rate of the second patterning shielding portion is roughly 35%.
Fig. 9 is the structural representation of the flexible flat cable 2 ' of another embodiment of the present utility model, is that with flexible flat cable 2 differences one first conductive layer 27 ' that metal constitutes covers second insulating barrier 23; One second conductive layer, 24 ' patterning is arranged at first insulating barrier 21 and corresponding to the opposite side of conductor layer 22; Figure 10 is the upward view of flexible flat cable 2 ', and the structure of second conductive layer 24 ' can be made up of one first patterning shielding portion 241 ' and one second patterning shielding portion 242 ', and material is to be selected from the group that silver is starched, silver-colored carbon is starched, carbon is starched, aluminium paste is formed.The first patterning shielding portion 241 ' has the geometrical pattern of a plurality of hollow outs and is arranged at zone, first insulating barrier, 21 stage casing; The second patterning shielding portion 242 ' has the geometrical pattern of a plurality of hollow outs and extends two end regions that are arranged at first insulating barrier 21 by the two ends of the first patterning shielding portion 241 '.The first patterning shielding portion 241 ' and the second patterning shielding portion 242 ' all have a screening rate between 15%~45%, and the screening rate of the second patterning shielding portion 242 ' is greater than at least 20 percentages of screening rate of the first patterning shielding portion 241 '.For instance, the screening rate of the first patterning shielding portion 241 ' is roughly 15% and the screening rate of the second patterning shielding portion 242 ' is roughly 35%.Figure 11 is the vertical view of flexible flat cable 2 '.
The utility model is to utilize first conductive layer 27,27 ' and second conductive layer 24,24 ' setting, preferable EMI effect not only can be arranged, also making flexible flat cable 2,2 ' whole characteristic impedance scope is between 90 Ω to 110 Ω, to satisfy the use specification requirement of LVDS signal transmssion line.
Then please refer to Figure 12, be the structural representation of another embodiment of the present utility model, also comprise an ink lay 25 and a stiffening plate 26.Ink lay 25 is covered in second conductive layer 24 on second insulating barrier 23, in order to indicate associated production information.Stiffening plate 26 is arranged at least one end of first conductive layer 27 that covers first insulating barrier 21, and when being clashed into, stiffening plate 26 is able to the buffering collision of closed power, to reduce the probability that fracture takes place this end.For instance, the material of stiffening plate 26 can be mylar.In addition, also can comprise an insulating barrier (not icon) is arranged at first conductive layer 27 and corresponding to the opposite side of first insulating barrier 21, makes first conductive layer 27 and the external insulation.
Figure 13 is the structural representation of another embodiment of the present utility model, also comprises an ink lay 25 and a stiffening plate 26.Stiffening plate 26 is arranged at least one end of first insulating barrier 21, and when being clashed into, stiffening plate 26 is able to the buffering collision of closed power, to reduce the probability that fracture takes place this end.For instance, the material of stiffening plate 26 can be mylar, and ink lay 25 covers the second set conductive layer 24 ' of first insulating barrier 21, in order to indicate associated production information.Also can comprise an insulating barrier (not icon) is arranged at first conductive layer 27 ' and corresponding to the opposite side of second insulating barrier 23, makes first conductive layer 27 ' and external insulation.
Comprehensive the above, flexible flat cable of the present utility model comprises one first insulating barrier, a conductor layer, one second insulating barrier, one first conductive layer and one second conductive layer.Wherein first conductive layer is to be constituted and covered first insulating barrier or second insulating barrier by metal, second conductive layer is that patterning is arranged at first insulating barrier or second insulating barrier, and its screening rate is between 15%~45%, and the flexible flat cable of another embodiment of the present utility model comprises one first insulating barrier, a conductor layer, one second insulating barrier, one first conductive layer and one second conductive layer.Wherein first conductive layer is to be constituted and covered first insulating barrier or second insulating barrier by metal, second conductive layer is that patterning is arranged at first insulating barrier or second insulating barrier, and comprise the patterning screening rate between 15%~45% one first patterning shielding portion and one second patterning shielding portion, and the screening rate of the second patterning shielding portion is greater than at least 20 percentages of screening rate of the first patterning shielding portion.For instance, the screening rate of the first patterning shielding portion is roughly 15% and the screening rate of the second patterning shielding portion is roughly 35%.The characteristic impedance scope of flexible flat cable of the present utility model is between 90 Ω to 110 Ω.And flexible flat cable of the present utility model also comprises a stiffening plate, makes to be minimized the probability that fracture takes place this end when flexible flat cable takes place to impact.The utility model not only has easy, soft, the anti-combustion of flexible flat cable technology, cold-resistant thermal property more can have preferable EMI effect, and the use specification requirement of satisfying the LVDS transmission line, therefore the manufacturing cost that can save the LVDS transmission line in a large number.
Above-described embodiment only is explanation technological thought of the present utility model and characteristics, its purpose makes the personage who is familiar with this technology can understand content of the present utility model and is implementing according to this, when can not with qualification claim of the present utility model, be that every equalization of doing according to the spirit that the utility model disclosed changes or modification, must be encompassed in the claim of the present utility model.