A kind of screen body ageing lead-in wire wire structures and preparation method thereof
Technical field
The present invention relates to the display device field, specifically wire structures of a kind of ageing of display screen lead-in wire and preparation method thereof.
Background technology
The failure rate that facts have proved most of electron devices is the function of time, the typical fault curve is referred to as failure rate characteristic, and (English full name is Bathtub curve, be translated into again tub curve), the shape of curve is two head heights, middle low, have obvious stage, can be divided into three phases: early fault period, random failure period, the catastrophic failure phase.Usually during early fault period, namely product is when bringing into use, and crash rate is very high, but along with the increase of product work time, crash rate reduces rapidly, and the reason that this one-phase lost efficacy is because the defective in design, starting material and the manufacture process causes mostly.Crossed this one-phase; the crash rate of electron device reduces; and keep stable; therefore; in order to shorten the time of this one-phase, usually can pass through technique for ageing, carry out test working in next production process of product introduction or before putting into operation; in order to find early, revise and fix a breakdown, perhaps reject substandard product.
In the production run of flat-panel display device (such as PDP, LED, LCD, OLED etc.), after producing, the screen body needs to shield the body ageing, and full framely a series of testings such as light, to guarantee being non-defective unit at the screen body that flows into next stage module production, (English full name is Integrated Circuit to have avoided integrated circuit, referred to as IC), (English full name is AnisotropicConductive film to different side's conducting film, referred to as ACF) etc. production material be used for the badness screen body, cause raw material and technologic loss.
Generally all be to realize driving by the signal of COM end (common port) and SEG end (Scanning Section) in the flat-panel display device, being about to AC drive voltage is added between COM end and the SEG end, combination by COM end and SEG end, light different point or display segment, thereby form literal or pattern.During screen body ageing, need to draw respectively the ageing lead-in wire at COM end and SEG end, by ageing adhesive tape bonding, shield the body ageing at the ageing lead-in wire, to guarantee being non-defective unit at the screen body that flows into next stage module production.
Chinese patent CN101800238A discloses a kind of organic electroluminescence device and method of testing thereof, adopt monolateral nation fixed structure, line lead and row lead-in wire can converge at the Bang Ding district each other under this structure, the angle that the lead-in wire of region of elongation and the lead district of specifically going between forms is greater than 0 degree and less than 90 degree, compare with situation about not tilting, increased to a certain extent the spacing of line lead with the row lead-in wire, prevented that the situation with the ranks lead short circuit occurs in the screen body examination examination stage.But in the prior art, along with the raising of IC integrated level, so that the size of I C reduces gradually, this diminishes with regard to the cabling space that causes shielding body, and COM end and SEG end spacing are too small, and the effect that this method the plays victory of producing effects is little; And under miniature scale, the impact that the ageing adhesive tape is subjected to positioning error, cut the factors such as tolerance and stressed expansion is larger, COM, SEG lead-in wire overlaps easily during ageing, cause the burn of lead-in wire, even the phenomenon of screen occurs to burn, and will paste respectively conductive adhesive tape on the COM ageing lead-in wire and on the SEG ageing lead-in wire, to guarantee that both disconnect, distinguish contraposition, accuracy requirement is high, complex process.
Summary of the invention
For this reason, to be solved by this invention is the easy overlap joint of COM end and SEG end ageing lead-in wire during screen body ageing in the prior art, easily causing the problem of lead-in wire burn and the damage of screen body, and a kind of novel screen body ageing wire structures and preparation method thereof that goes between is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of screen body ageing lead-in wire wire structures, the COM ageing lead-in wire 3 that comprises COM lead-in wire, SEG lead-in wire, draws from the COM lead terminal, the SEG ageing lead-in wire of drawing from the SEG lead terminal and level stick to described COM ageing lead-in wire 3 and SEG ageing lead-in wire drive chip or circuit board surely for nation conductive adhesive tape 5, it is characterized in that
Bar shaped insulating regions 1 and bar shaped conductive region 2 are arranged alternately in the described conductive adhesive tape 5, and the angle of the length direction of described bar shaped insulating regions 1 and described bar shaped conductive region 2 length directions and described conductive adhesive tape 5 is 0-180 °;
Described COM ageing lead-in wire 3 and described SEG ageing lead-in wire pass the conductive region 2 of described conductive adhesive tape 5;
The quantity of described COM ageing lead-in wire 3 equals the quantity of described COM lead-in wire; The quantity of described SEG ageing lead-in wire equals the quantity of described SEG lead-in wire;
Described COM ageing lead-in wire 3, described SEG ageing lead-in wire are oblique broken line, and described oblique broken line comprises oblique line and the broken line that links to each other with described lead-in wire in turn;
Minimum spacing between described COM ageing lead-in wire 3 and described SEG ageing lead-in wire is greater than adjacent conductive zone 2 distances between centers of described conductive adhesive tape 5.
Described SEG ageing lead-in wire comprises and is respectively in described COM ageing go between left SEG ageing lead-in wire 41 and the right SEG ageing lead-in wire 42 of 3 both sides.
Described oblique line in described COM ageing lead-in wire 3, described left SEG ageing lead-in wire 41 and the described right SEG ageing lead-in wire 42 and the angle of described lead-in wire are greater than 0 ° and less than 45 °, the angle of described oblique line and described broken line is greater than 90 ° and less than 180 °, and overbending direction is consistent.
Described oblique line in described left SEG ageing lead-in wire 41 and the described right SEG ageing lead-in wire 42 and the angle of described lead-in wire be greater than 0 ° and less than 45 °, and the angle of described oblique line and described broken line is greater than 90 ° and less than 180 °, and bend towards the direction that deviates from mutually; Described oblique line in the described COM ageing lead-in wire 3 and the angle of described lead-in wire are greater than 0 ° and less than 90 °, and the angle of described oblique line and described broken line is 180 °.
The length of described oblique line is 0.1-0.5mm, and the length of described broken line is 0.1-0.5mm.
Described COM ageing lead-in wire 3 and SEG ageing lead-in wire comprise ITO layer and the conducting medium layer that is arranged on the ITO layer.
Described conducting medium layer is that resistivity is less than 10 * 10
-8The conducting metal of Ω .m or electrical conductivity alloy layer.
The thickness of described ITO layer is 120-180nm, and the thickness of described conducting medium layer is 400-700nm.
The described bar shaped insulating regions 1 of described conductive adhesive tape 5 and described bar shaped conductive region 2 equi-spaced apart are arranged alternately.
The angle of the length direction of described bar shaped insulating regions 1 and described bar shaped conductive region 2 length directions and described conductive adhesive tape 5 is 90 °.
A kind of method for making of shielding body ageing lead-in wire wire structures comprises the steps:
S1, on the ageing zone of glass substrate sputter one deck ITO layer, sputter one deck conducting medium layer makes the ageing trace layer on described ITO layer;
S2, by etching technics, etching obtains left SEG ageing lead-in wire 41, right SEG ageing lead-in wire 42 and COM ageing lead-in wire 3 in the ageing trace layer that makes in step S1, the quantity of described COM ageing lead-in wire 3 equals the quantity of described COM lead-in wire; The quantity of described SEG ageing lead-in wire equals the quantity of described SEG lead-in wire, described left SEG ageing lead-in wire 41, described right SEG ageing lead-in wire 42 and described COM ageing lead-in wire 3 are oblique broken line, described oblique broken line comprises oblique line and the broken line that links to each other with described lead-in wire in turn, and the minimum spacing of described COM ageing lead-in wire 3 and described left SEG ageing lead-in wire 41, described right SEG ageing lead-in wire 42 all replaces adjacent conductive zone 2 distances between centers of the conductive adhesive tape 5 that equidistant interval arranges greater than described bar shaped insulating regions 1 and described bar shaped conductive region 2;
S3, on the described SEG ageing lead-in wire that makes and described COM ageing lead-in wire 3 the described bar shaped insulating regions 1 of horizontal abutment and described bar shaped conductive region 2 alternately equi-spaced apart conductive adhesive tape 5 is set.
Described oblique line in described COM ageing lead-in wire 3, described left SEG ageing lead-in wire 41 and the described right SEG ageing lead-in wire 42 and the angle of described lead-in wire are greater than 0 ° and less than 45 °, the angle of described oblique line and described broken line is greater than 90 ° and less than 180 °, and overbending direction is consistent.
Described oblique line in described left SEG ageing lead-in wire 41 and the described right SEG ageing lead-in wire 42 and the angle of described lead-in wire be greater than 0 ° and less than 45 °, and the angle of described oblique line and described broken line is greater than 90 ° and less than 180 °, and bend towards the direction that deviates from mutually; Described oblique line in the described COM ageing lead-in wire 3 and the angle of described lead-in wire are greater than 0 ° and less than 45 °, and the angle of described oblique line and described broken line is 180 °.
The length of described oblique line is 0.1-0.5mm, and the length of described broken line is 0.1-0.5mm.
The layer of conducting medium described in the step S1 is that resistivity is less than 10 * 10
-8The conducting metal of Ω .m or electrical conductivity alloy layer.
The thickness of the layer of ITO described in the step S1 is 120-180nm, and the thickness of described conducting medium layer is 400-700nm.
Technique scheme of the present invention has the following advantages compared to existing technology:
1, a kind of screen body ageing lead-in wire wire structures, select bar shaped conductive region and bar shaped insulating regions to replace the conductive adhesive tape that equidistant interval arranges, and the minimum spacing between described COM ageing lead-in wire and described left SEG ageing lead-in wire, minimum spacing between described COM ageing lead-in wire and described right SEG ageing lead-in wire is all greater than distance between the adjacent conductive regional center of described conductive adhesive tape, this just guaranteed described COM lead-in wire and described SEG lead-in wire and respectively with the situation of described conductive adhesive tape conducting under, can not overlap, thereby the phenomenon that will shield the body short circuit in the time of can preventing from shielding the body ageing occurs.
2, described COM ageing lead-in wire, described left SEG ageing lead-in wire and described right SEG ageing are set to oblique broken line, compare with oblique line or straight line, increase with the contact area of described conductive adhesive tape, the current load that the conducting medium of unit area is shared reduces, the life-span of having improved described conductive adhesive tape.
3, described conductive adhesive tape is that bar shaped conductive region and bar shaped insulating regions replace the conductive adhesive tape that equidistant interval arranges, and is convenient to contraposition, and more accurate and described ageing lead-in wire is fitted.
4, conductive region and insulating regions replace equidistant interval and arrange in the described conductive adhesive tape, so just avoid COM ageing lead-in wire and described SEG ageing the above conductive adhesive tape that goes between need to disconnect the problem of setting.
Description of drawings
For content of the present invention is more likely to be clearly understood, the below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation that bar shaped conductive region and bar shaped insulating regions replace the conductive adhesive tape of equidistant interval setting;
Fig. 2 is the wiring synoptic diagram of COM ageing lead-in wire of the present invention and SEG ageing lead-in wire;
Fig. 3 is the wiring synoptic diagram of screen body ageing pin configuration of the present invention;
Reference numeral is expressed as among the figure: insulation division, 13-conductive part, 2-conductive region, 3-COM ageing lead-in wire, the left SEG ageing lead-in wire of 41-, the right SEG ageing lead-in wire of 42-, 5-conductive adhesive tape under 1-insulating regions, the upper insulation division of 11-, the 12-.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment 1
A kind of screen body ageing lead-in wire wire structures in the present embodiment, the COM ageing lead-in wire 3 that comprises COM lead-in wire, SEG lead-in wire, draws from the COM lead terminal, the SEG ageing lead-in wire of drawing from the SEG lead terminal and level stick to described COM ageing lead-in wire 3 and SEG ageing lead-in wire drive chip or circuit board surely for nation conductive adhesive tape 5;
Bar shaped insulating regions 1 and bar shaped conductive region 2 are arranged alternately in the described conductive adhesive tape 5, and the angle of the length direction of described bar shaped insulating regions 1 and described bar shaped conductive region 2 length directions and described conductive adhesive tape 5 is 90 °;
Described COM ageing lead-in wire 3 and described SEG ageing lead-in wire pass the conductive region 2 of described conductive adhesive tape 5;
The quantity of described COM ageing lead-in wire 3 equals the quantity of described COM lead-in wire; The quantity of described SEG ageing lead-in wire equals the quantity of described SEG lead-in wire;
Described COM ageing lead-in wire 3, described SEG ageing lead-in wire are oblique broken line, and described oblique broken line comprises oblique line and the broken line that links to each other with described lead-in wire in turn;
Minimum spacing between described COM ageing lead-in wire 3 and described SEG ageing lead-in wire is greater than adjacent conductive zone 2 distances between centers of described conductive adhesive tape 5.
Described SEG ageing lead-in wire comprises and is respectively in described COM ageing go between left SEG ageing lead-in wire 41 and the right SEG ageing lead-in wire 42 of 3 both sides.
Conductive adhesive tape described in the present embodiment 5 is available from Endiamond Tech Co., Ltd., structure as shown in Figure 1, width is 3mm, comprises insulation division 11, lower insulation division 12, and being arranged on conductive part 13 between described upper insulation division 11 and the lower insulation division 12, the width of described conductive part 13 is 1mm; Described conductive part 13 further comprises insulating regions 1 and the conductive region 2 that equidistant interval arranges, and wherein adjacent conductive zone 1 distance between centers is 0.1mm; Described COM lead-in wire is all drawn COM ageing lead-in wire 3, and described SEG lead-in wire is all drawn left SEG ageing lead-in wire 41 and right SEG ageing lead-in wire 42, guarantees that every lead-in wire can both realize that nation is fixed; The minimum spacing of described SEG lead terminal and COM lead terminal is 0.05mm, much smaller than distance between the adjacent conductive regional center of described conductive adhesive tape, if directly draw or the oblique line extraction pole COM ageing lead-in wire and SEG ageing occur easily and goes between and paste in the same conductive region 2, cause the problem of overlap joint; Therefore, described COM ageing lead-in wire 3 and described SEG ageing lead-in wire are set to oblique broken line, described oblique broken line comprises oblique line and the broken line that links to each other with described lead-in wire in turn, guarantee that the minimum spacing between described COM ageing lead-in wire 3 and described SEG ageing lead-in wire replaces adjacent conductive zone 2 distances between centers of the conductive adhesive tape 5 of equidistant interval setting greater than described bar shaped conductive region 2 and bar shaped insulating regions 1, thereby can realize shielding the ageing of body, concrete preparation method is as follows:
S11, on glass substrate sputter one deck ITO layer, thickness 150nm, sputter one deck conducting medium layer on described ITO layer, the preferred conducting medium layer material of present embodiment molybdenum aluminium molybdenum, thickness 500nm makes the ageing trace layer;
Select molybdenum aluminium molybdenum layer as the conducting medium layer in the present embodiment, other resistivity are less than 10 * 10
-8The conducting metal of Ω .m or electrical conductivity alloy, such as argent, copper, gold, and alloy etc. all can be realized purpose of the present invention belonging to protection scope of the present invention.Following table is resistivity and the temperature-coefficient of electrical resistance of conducting metal commonly used.
The thickness of ITO is 150nm in the present embodiment; the thickness of conducting medium layer is 500nm; as disposable embodiment; the thickness of ITO is in the scope of 120-180nm in other embodiments; the thickness of conducting medium layer can be in the scope of 400-700nm; to guarantee that the ageing lead-in wire has good electric conductivity, all can realize purpose of the present invention, belong to protection scope of the present invention.
S12, pass through etching technics, etching obtains SEG ageing lead-in wire and COM ageing lead-in wire 3 in the ageing trace layer that makes in step S1, described COM ageing lead-in wire 3 and described SEG ageing lead-in wire are oblique broken line, and overbending direction is consistent, and described SEG ageing lead-in wire further comprises left SEG ageing lead-in wire 41 and right SEG ageing lead-in wire 42; Described COM ageing lead-in wire 3 is 21 ° with the angle of COM lead-in wire, and the oblique line in the described COM ageing lead-in wire 3 and the angle of broken line are 125 °; Oblique line in the described SEG ageing lead-in wire 3 and the angle of broken line are 125 °; The described left SEG ageing 41 bend length that go between are 0.1mm, and broken line length is 0.5mm; The described COM ageing 3 bend length that go between are 0.4mm, and broken line length is 0.2mm; The described right SEG ageing 42 bend length that go between are 0.3mm, and broken line length is 0.3mm.
The spacing that described COM ageing lead-in wire 3 and described left SEG ageing lead-in wire 41 and right SEG ageing lead-in wire are 42 is respectively 0.23mm and 0.25mm, greater than between the adjacent conductive regional center of described conductive adhesive tape 5 apart from 0.1mm; Avoid easily overlap joint of use continuity conductive adhesive tape COM ageing lead-in wire 3 and SEG ageing lead-in wire, caused the problem of screen body damage; When also having avoided using bar shaped conductive region and bar shaped insulating regions to replace the conductive adhesive tape 5 of equidistant interval setting, described COM ageing lead-in wire 3 and described SEG ageing lead-in wire are pasted in the same conductive region 2, cause overlap joint, can't realize the problem of ageing.
As disposable embodiment, the angle of oblique line and described broken line can be in the inner conversion of 0-45 degree scope described in described COM ageing lead-in wire 3 and the described SEG ageing lead-in wire; The angle of oblique line and described broken line described in the described COM ageing lead-in wire 3, oblique line described in the described SEG ageing lead-in wire can be identical or different from the angle of described broken line, can be in the inner conversion of 90-180 degree scope; In described COM ageing lead-in wire 3 and the described SEG ageing lead-in wire; the length of described oblique line and the length of described broken line can be in the inner conversions of 0.1-0.5mm scope; as long as the minimum spacing between the described COM ageing lead-in wire 3 of assurance and described SEG ageing lead-in wire is greater than distance between the adjacent conductive regional center of described conductive adhesive tape; all can realize purpose of the present invention, belong to protection scope of the present invention.
S13, on the described SEG ageing lead-in wire that makes and described COM ageing lead-in wire 3 horizontal abutment conductive adhesive tape 5.
Select bar shaped conductive region 2 and bar shaped insulating regions 1 to replace the conductive adhesive tape 5 that equidistant interval arranges, and the minimum spacing that the minimum spacing that described COM ageing lead-in wire 3 and described left SEG ageing lead-in wire are 41, described COM ageing lead-in wire 3 and described right SEG ageing lead-in wire are 42 is all greater than adjacent conductive zone 2 distances between centers of described conductive adhesive tape 5, this just guaranteed described COM lead-in wire 3 and described SEG lead-in wire with respectively with the situation of described conductive adhesive tape 5 conductings under, can not overlap, thereby the phenomenon that will shield the body short circuit in the time of can preventing from shielding the body ageing occurs.
Embodiment 2
Embodiment is with embodiment 1, and unique different to be left SEG ageing lead-in wire 41 described in the step S12 be 25 ° with described oblique line in the described right SEG ageing lead-in wire 42 with the angle of described lead-in wire, and bend towards the direction that deviates from mutually; Described oblique line in the described COM ageing lead-in wire 3 and the angle of described lead-in wire are 22 °, and the angle of described oblique line and described broken line is 180 °, and described COM ageing goes between 3 ends towards left SEG ageing 41 directions that go between.
Described COM ageing goes between 3 ends towards right SEG ageing 42 directions that go between in the present embodiment, also can realize purpose of the present invention, belongs to protection scope of the present invention.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.The apparent variation of being extended out thus or change still are among protection scope of the present invention.