Summary of the invention
The present invention provides a kind of masks, flexible circuit board and preparation method thereof, to solve existing flexible circuit board systemWhen being modified during work due to flexible circuit board abutting end pattern, the excessively high problem of mask replacement cost.
According to an aspect of the invention, there is provided a kind of mask, including at least two masks areas, the masked areaIt is combined with each other between domain to form the mask；
Wherein, the mask pattern of the masks area and the target pattern of object to be etched match.
According to one preferred embodiment of the present invention, the connection type between the masks area is to be detachably connected.
According to one preferred embodiment of the present invention, it is bonded to each other between the masks area.
Another invention according to the present invention, provides a kind of production method of flexible circuit board, the flexible circuit boardIncluding panel abutting end, including：
Step S10, a flexible base board is provided, the flexible base board includes engaging zones；
Step S20, metal layer is formed on the flexible base board；
Step S30, use claim 1-3 it is any as described in mask to the metal layer carry out light shield technique withThe engaging zones form the abutting end of the flexible circuit board.
According to one preferred embodiment of the present invention, the engaging zones include the first engaging zones and the second engaging zones；
The abutting end includes the first abutting end and the second abutting end, and first abutting end is located at first bonding landDomain, second abutting end are arranged in second engaging zones.
According to one preferred embodiment of the present invention, the mask includes the first masks area and the second masks area；
The step S30 is specifically included：The mask is used to carry out light shield technique to the metal layer described to be formedFirst abutting end and second abutting end；
Wherein, the mask pattern of first masks area is corresponding with first abutting end, second masked areaThe mask pattern in domain is corresponding with second abutting end.
According to one preferred embodiment of the present invention, the mask includes the first masks area, the second masks area and thirdMasks area；
The step S30 is specifically included：The mask is used to carry out light shield technique to the metal layer described to be formedFirst abutting end and second abutting end；
The mask pattern of first masks area is corresponding with first abutting end, and second masks area is coveredMould pattern is corresponding with second abutting end, and the mask pattern of the third masks area is corresponding with circuit region；
Wherein, the circuit region be the flexible circuit board in addition to first abutting end and second abutting endRegion.
According to one preferred embodiment of the present invention, first abutting end is display panel abutting end, second abutting endFor signal source end abutting end.
According to one preferred embodiment of the present invention, the display panel abutting end and the signal source end abutting end include moreA signal wire connecting end point.
According to a further aspect of the invention, a kind of flexible circuit board is provided, the flexible circuit board is used as in 3-9The production method of any flexible circuit board is made.
It is an advantage of the invention that a kind of mask, flexible circuit board and preparation method thereof are provided, it can by designing one kindThe mask of removable parts mask pattern is with solution of determining in flexible circuit board manufacturing process due to flexible circuit board abutting end patternWhen modification, the excessively high problem of mask replacement cost improves the production efficiency of flexible circuit board.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present inventionExample.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than toThe limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
The present invention provides a kind of mask, flexible circuit board and preparation method thereof, existing flexible circuit board manufacturing processIn due to flexible circuit board abutting end pattern modification when, the excessively high problem of mask replacement cost, the present embodiment can improve thisDefect.
The present invention is described further for connection with figures and specific embodiment below：
As shown in Figure 1, the present invention provides a kind of mask 10, including at least two masks areas, the masks areaBetween be combined with each other to form the mask 10；
Wherein, the mask pattern of the masks area and the target pattern of object to be etched match.
Specifically, the connection type between the masks area is to be detachably connected, pass through setting for detachable maskMeter, so that can flexibly be masked mask in version 10 according to the needs of lithographic object in the use process of mask 10The replacement of pattern, the mask because preparing an entirety again because of the change of part-structure to photoetching object, is greatly savedThe use cost of mask.
Further, it is bonded to each other between the masks area, the purpose designed in this way is preferably avoid coveringLight leakage occurs between mould region and then influences photoetching of the band to photoetching object, improves the photoetching quality of mask.
In one embodiment, as shown in figures 2 a and 2b, the mask 10 includes the first masks area 11 and the second maskRegion 12.
It should be noted that display device includes the flexible circuit board of display panel and engagement on a display panel；AobviousWhen showing panel work, flexible circuit board provides display signal and control signal to display panel, therefore the two is linked togetherForm display device；But it needs to heat the joint surface of the two in engaging process, the coefficient of expansion on the two joint surfaceDifference is easy to cause to deviate in engaging process；Flexible circuit board further includes the signal source end engagement connecting with signal source end simultaneouslyThe lead endpoint distribution in area, the signal source end bonding land is more loose therefore relatively high to the tolerance of offset；Again it preparesMask will slattern mask region corresponding to signal source end bonding land, and mask detachable in the present invention is transportedIn flexible circuit board, it is only necessary to the flexible circuit board can be prepared again by replacing the part masks area in mask,And then very good solution mask in mask pattern waste, therefore propose following embodiment.
According to another aspect of the present invention, as shown in figure 5, proposing a kind of production method of flexible circuit board 20, instituteStating flexible circuit board 20 includes panel abutting end, including：
As shown in fig. 4 a, a flexible base board 21 step S10, is provided, the flexible base board 21 includes engaging zones.
Specifically, the flexible base board 21 includes flexible substrate, the material for preparing of the flexible substrate is polyimides.
Preferably, the flexible base board 21 includes the first engaging zones 211 and the second engaging zones 212
As shown in Figure 4 b, metal layer 22a is formed step S20, on the flexible base board 21；
The metal layer is used to prepare metal routing, the first abutting end 221 and the second abutting end in flexible circuit board222。
As illustrated in fig. 4 c, step S30, using claim 1-3 it is any as described in mask 10 to the metal layer 22aLight shield technique is carried out to form the abutting end 22 of the flexible circuit board in the engaging zones.
Specifically, the engaging zones include the first engaging zones 211 and the second engaging zones 212；
The abutting end 22 includes the first abutting end 221 and the second abutting end 222, and first abutting end 221 is located at instituteThe first engaging zones 211 are stated, second abutting end 222 is arranged in second engaging zones 212.
Corresponding to be, the mask 10 includes the first masks area 11 and the second masks area 13；
The step S30 is specifically included：The mask is used to carry out light shield technique to the metal layer described to be formedFirst abutting end 221 and second abutting end 222；
Wherein, the mask pattern of first masks area 11 is corresponding with first abutting end 221, and described second coversThe mask pattern in mould region 13 is corresponding with second abutting end 222.
In another embodiment, the mask includes the first masks area 11, the second masks area 13 and third maskRegion 12；
The step S30 is specifically included：The mask 11 is used to carry out light shield technique to the metal layer 22a to be formedFirst abutting end 221 and second abutting end 222；
The mask pattern of first masks area 11 is corresponding with first abutting end 221, second masked areaThe mask pattern in domain 13 is corresponding with second abutting end 222, the mask pattern and circuit region of the third masks area 12213 is corresponding；
Wherein, the circuit region 213 is in the flexible circuit board 20 except first abutting end 221 and described second connectsClose except end 222 region.
It is understood that the circuit region includes to convey display signal to display panel and control the electricity of signalRoad further includes the signal lead to signal transmitting.
Certainly the quantity of masks area included by mask 10 is not limited in above-mentioned in of the invention, according to flexible circuitryThe production of plate needs, it is also possible to including the 4th masks area, the 5th masks area etc., specifically flexibly select according to actual conditionsIt selects.
Preferably, the display panel abutting end and the signal source end abutting end include multiple signal wire connecting endsPoint.
It is understood that the present invention can be used for the production of flexible circuit board it is not limited to for flexible circuit boardIn production, it can also need to use in the technique using mask other.
According to a further aspect of the invention, as shown in figure 3, additionally providing a kind of flexible circuit board, which is characterized in that instituteFlexible circuit board is stated to be made using the production method of the flexible circuit board as described in any in 3-9.
The flexible circuit board 20 includes flexible base board 21 and the first abutting end being arranged on the flexible base board 21221, the second abutting end 222 and circuit region.
Further, the flexible base board includes the first engaging zones 211 and the second engaging zones 212, and setting existsCircuit region between first engaging zones 211 and the second engaging zones 212.
Specifically, first abutting end 221 is display panel abutting end, second abutting end 222 is signal source endAbutting end, it is to be understood that the flexible circuit board 20 is engaged by the display panel abutting end with display panel, is passed throughSignal source end abutting end is engaged with signal source end.
It is understood that the circuit region includes to convey display signal to display panel and control the electricity of signalRoad further includes the signal lead to signal transmitting.
Abutting end in the present invention is equivalent to the binding end in the display device.
It is an advantage of the invention that a kind of mask, flexible circuit board and preparation method thereof are provided, it can by designing one kindThe mask of removable parts mask pattern is with solution of determining in flexible circuit board manufacturing process due to flexible circuit board abutting end patternWhen modification, the excessively high problem of mask replacement cost improves the production efficiency of flexible circuit board.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limitThe system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present inventionDecorations, therefore protection scope of the present invention subjects to the scope of the claims.