CN101847628A - Display device - Google Patents
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- CN101847628A CN101847628A CN200910048490A CN200910048490A CN101847628A CN 101847628 A CN101847628 A CN 101847628A CN 200910048490 A CN200910048490 A CN 200910048490A CN 200910048490 A CN200910048490 A CN 200910048490A CN 101847628 A CN101847628 A CN 101847628A
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- short bar
- spike projection
- display unit
- projection
- holding wire
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- 229910000583 Nd alloy Inorganic materials 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- LGQLWSVDRFRGCP-UHFFFAOYSA-N [Mo].[Nd] Chemical compound [Mo].[Nd] LGQLWSVDRFRGCP-UHFFFAOYSA-N 0.000 claims description 4
- VVTQWTOTJWCYQT-UHFFFAOYSA-N alumane;neodymium Chemical compound [AlH3].[Nd] VVTQWTOTJWCYQT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract description 25
- 238000007689 inspection Methods 0.000 abstract 3
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- 238000009825 accumulation Methods 0.000 description 7
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- 238000012545 processing Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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- Elimination Of Static Electricity (AREA)
Abstract
The present invention provides a display device including: the display device comprises an effective display part consisting of display pixels, a signal wire electrically connected with the effective display part and an inspection device, wherein the inspection device comprises short-circuit bars which are arranged at intervals, the short-circuit bars are respectively and electrically connected with different signal wires, one end of each short-circuit bar is provided with a test pad, and the inspection device also comprises a peak bulge which is respectively and electrically connected with the short-circuit bars, so that the problem that a via hole area of a connection position of the short-circuit bars and the signal wire caused by static electricity is easy to burn is solved.
Description
Technical field
The present invention relates to field of display devices, particularly a kind of display unit with testing fixture.
Background technology
Therefore plurality of advantages such as it is frivolous, energy-conservation, radiationless that display unit possesses have replaced traditional cathode ray tube (CRT) display gradually.Display unit is widely used in the electronic equipments such as HD digital TV, desktop computer, PDA(Personal Digital Assistant), notebook computer, mobile phone, digital camera at present.
Display unit has effective display part that rectangular display pixel constitutes.Many the data wires that this effective display part has the multi-strip scanning line that extends along the line direction of display pixel and extends along the column direction of display pixel.The place that intersects at scan line and data wire is provided with switch element, for example thin-film transistor (TFT), and the pixel electrode that is connected with switch element etc.Each scan line and data wire are drawn out to the periphery of effective display part, for example the scan line and the data wire of drawing are electrically connected with drive circuit.These scan lines, data wire and other circuit connecting wire are referred to as holding wire.
Because increase along with display pixel, live width at various holding wires such as the scan line of effectively display part and periphery thereof and data wires is more and more thinner, and it is more and more littler at interval, therefore various wiring condition of poor such as broken string, short circuit are also more and more, therefore in order in time to find the wiring condition of poor, prevent that extensive bad generation and defective products from flowing into subsequent processing and causing waste, after wiring, need scan line, data wire and other holding wire are checked, thereby judge whether to exist the wiring condition of poor.
A kind of structural representation that the display unit of testing fixture is set as shown in Figure 1, effectively display part 11 links to each other with peripheral drive circuit (figure does not show) by holding wire 1005, and described holding wire 1005 is connected with testing fixture 20.Described testing fixture 20 is made of 4 short bars (shorting bar) 1001,1002,1003,1004, each short bar 1001,1002,1003,1004 links to each other with holding wire 1005-1,1005-2,1005-3 respectively, and described holding wire can be scan line, data wire or other holding wire.The link position of each short bar 1001,1002,1003,1004 and holding wire 1005-1,1005-2,1005-3 is a via area.Described via area has contact hole 1000 and connecting conductive layer 1006, part connecting conductive layer 1006 is filled in and is used in the contact hole 1000 short bar and holding wire are electrically connected, and connecting conductive layer 1006 is generally tin indium oxide (ITO) or indium zinc oxide (IZO) layer.End at short bar is connected with test pads (visual test pad) 1007, adds voltage signal by giving test pads 1007, just can carry out testing electrical property.Fig. 2 is the effective display part of display unit shown in Figure 1 and the enlarged drawing of testing fixture link position, shown in the frame of broken lines 10a is the via area of the link position of short bar and holding wire wherein.
Owing in manufacture process, be easy to generate static, thereby easily because static causes being burnt of via area.Fig. 3 is burnt the enlarged drawing at position for via area in the display unit shown in Figure 2, and wherein frame of broken lines 10b is depicted as and is burnt the position.Especially because electrostatic charge accumulates in via area easily, contact hole is burnt thereby therefore be easy to generate bigger static in via area.Usually, because the body structure surface of whole Fig. 1 is covered (not marking among the figure) by one deck or two-layer transparent insulating barrier, be generally silicon nitride or silica.If in process for making, for example make the alignment films coating and the alignment film rubbing operation of box operation, because static is excessive, the connecting conductive layer 1006 of via area can be burnt, cause contact hole to be burnt, thereby testing electrical property can not carry out, and bad phenomenon will occur.
Summary of the invention
The purpose of this invention is to provide a kind of display unit, thereby solve because the problem that the via area that static causes is burnt easily.
A kind of display unit provided by the invention comprises: by effective display part that display pixel constitutes, the holding wire and the testing fixture that are electrically connected with effective display part, described testing fixture comprise the short bar of discharging at interval; Described each short bar is electrically connected by via area and different holding wire respectively, and an end of described short bar has test pads, and described testing fixture also comprises the spike projection that is electrically connected with short bar.
Preferably, described spike projection is positioned at an end that does not have test pads of described short bar.
Preferably, an end that does not have test pads of same described short bar has a described spike projection.
Preferably, the spike projection of an end that does not have test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, described spike projection is positioned on the test pads of described short bar.
Preferably, the spike projection on the test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, on the test pads of described short bar, has described spike projection.
Preferably, the spike projection of an end that does not have test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, the spike projection on the test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, the spike projection on the test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, described spike projection is positioned at by the described via area.
Preferably, on the side of described short bar, have described spike projection respectively, and the spike projection on the adjacent short bar is relatively most advanced and sophisticated near adjacent both sides short bar.
Preferably, the tip of described spike projection is horn shape or taper.
Preferably, described short bar and described spike projection are positioned at same one deck.
Preferably, the material of described spike projection is one or more in aluminium, aluminium neodymium alloy, molybdenum, the molybdenum neodymium alloy.
Preferably, the material of described spike projection is a tin indium oxide.
Preferably, described holding wire is provided with described spike projection on the side near adjacent both sides holding wire, and the described spike projection on the adjacent described holding wire all is provided with relatively.
Preferably, the opposite side of described spike projection is provided with an attached cusp field in addition, and described attached cusp field is positioned at outside described effective display part, and has that one or more is most advanced and sophisticated corresponding with described spike projection.
Preferably, described attached cusp field is arranged on the public electrode.
Preferably, described holding wire and described spike projection are positioned at same one deck.
Preferably, the other spike projection of described via area is the extension of holding wire outside this short bar that is connected with short bar.
Preferably, described via area other also have with described short bar be positioned at spike projection with one deck, be positioned at the spike projection of one deck with short bar with holding wire and be positioned at most advanced and sophisticated relative with the spike projection of one deck.
Preferably, the tip of described spike projection is horn shape or taper.
Display unit of the present invention has testing fixture, and described testing fixture comprises the short bar of discharging at interval; Described each short bar is electrically connected by via area and different holding wire respectively, and an end of described short bar has test pads, and described testing fixture also comprises: the spike projection that is electrically connected with short bar.。In manufacture process, in case static is excessive, the electric charge of via area accumulation will move toward the spike projection immediately, in the discharge that tapers off to a point of spike raised tip, greatly reduce the damage of static to via hole, make testing electrical property normally carry out, therefore compare the present invention and reduced owing to static causes the possibility that via area is burnt easily with prior art.
Description of drawings
By the more specifically explanation of the preferred embodiments of the present invention shown in the accompanying drawing, above-mentioned and other purpose, feature and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by actual size equal proportion convergent-divergent.
Fig. 1 is a kind of existing structural representation that the display unit of testing fixture is set;
Fig. 2 is the effective display part of display unit shown in Figure 1 and the enlarged drawing of testing fixture link position;
Fig. 3 is burnt the enlarged drawing at position for via area in the display unit shown in Figure 2;
Fig. 4 is the structural representation of display unit embodiment one of the present invention;
Fig. 5 is the structural representation of checkout gear and holding wire among the display unit embodiment two of the present invention;
Fig. 6 is the structural representation of checkout gear and holding wire among the display unit embodiment three of the present invention;
Fig. 7 is the structural representation of checkout gear and holding wire among the display unit embodiment four of the present invention;
Fig. 8 is the structural representation of checkout gear and holding wire among the display unit embodiment five of the present invention;
Fig. 9 is the structural representation of checkout gear and holding wire among the display unit embodiment six of the present invention;
Figure 10 is the structural representation of checkout gear and holding wire among the display unit embodiment seven of the present invention;
Figure 11 is the structural representation of checkout gear and holding wire among the display unit embodiment eight of the present invention;
Figure 12 is the structural representation of checkout gear and holding wire among the display unit embodiment nine of the present invention;
Figure 13 is the structural representation of checkout gear and holding wire among the display unit embodiment ten of the present invention;
Figure 14 is the structural representation of checkout gear and holding wire among the display unit embodiment 11 of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, and those skilled in the art can do similar popularization under the situation of intension of the present invention, so the present invention is not subjected to the restriction of following public specific embodiment.
Secondly, the present invention utilizes schematic diagram to be described in detail, when the embodiment of the invention is described in detail in detail; for ease of explanation; the profile of expression device architecture can be disobeyed general ratio and be done local the amplification, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.The three dimensions size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
A kind of display unit provided by the invention comprises: by effective display part that display pixel constitutes, the holding wire and the testing fixture that are electrically connected with effective display part, described testing fixture comprise the short bar of discharging at interval; Described each short bar is electrically connected by via area and different holding wire respectively, and an end of described short bar has test pads, and described testing fixture also comprises the spike projection that is electrically connected with short bar.
Preferably, described spike projection is positioned at an end that does not have test pads of described short bar.
Preferably, an end that does not have test pads of same described short bar has a described spike projection.
Preferably, the spike projection of an end that does not have test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, described spike projection is positioned on the test pads of described short bar.
Preferably, the spike projection on the test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, on the test pads of described short bar, has described spike projection.
Preferably, the spike projection of an end that does not have test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, the spike projection on the test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, the spike projection on the test pads of the described short bar of connection unlike signal line is relatively most advanced and sophisticated.
Preferably, described spike projection is positioned at by the described via area.
Preferably, on the side of described short bar, have described spike projection respectively, and the spike projection on the adjacent short bar is relatively most advanced and sophisticated near adjacent both sides short bar.
Preferably, the tip of described spike projection is horn shape or taper.
Preferably, described short bar and described spike projection are positioned at same one deck.
Preferably, the material of described spike projection is one or more in aluminium, aluminium neodymium alloy, tin indium oxide, molybdenum, the molybdenum neodymium alloy.
Preferably, the material of described spike projection is a tin indium oxide.
Preferably, described holding wire is provided with described spike projection on the side near adjacent both sides holding wire, and the described spike projection on the adjacent described holding wire all is provided with relatively.
Preferably, the opposite side of described spike projection is provided with an attached cusp field in addition, and described attached cusp field is positioned at outside described effective display part, and has that one or more is most advanced and sophisticated corresponding with described spike projection.
Preferably, described attached cusp field is arranged on the public electrode.
Preferably, described holding wire and described spike projection are positioned at same one deck.
Preferably, the other spike projection of described via area is the extension of holding wire outside this short bar that is connected with short bar.
Preferably, described via area other also have with described short bar be positioned at spike projection with one deck, be positioned at the spike projection of one deck with short bar with holding wire and be positioned at most advanced and sophisticated relative with the spike projection of one deck.
Preferably, the tip of described spike projection is horn shape or taper.
In case static is excessive in manufacture process, on short bar and the connecting portion of short bar and holding wire, for example the electric charge of via area place accumulation will move toward the spike projection immediately, in the discharge that tapers off to a point of spike raised tip, greatly reduce the damage of static to via hole, therefore make testing electrical property normally carry out, compare the present invention with prior art and reduced the possibility that the via area that causes owing to static is burnt.
Embodiment one
Fig. 4 is the structural representation of display unit embodiment one of the present invention.Below in conjunction with Fig. 4 display unit of the present invention is described.
Display unit comprises in the present embodiment: effective display part 10 that display pixel constitutes; The holding wire 1005 and the testing fixture 20 that are electrically connected with effective display part 10, wherein holding wire 1005 can be connecting lines such as data wire, scan line, gate line, particularly, is that example is introduced with the data wire in present embodiment.
As shown in Figure 4, described testing fixture 20 comprises the short bar of discharging at interval, for example Fig. 4 shows 4 short bars and is respectively short bar 101-104, short bar 101-103 is electrically connected by via area with data wire 1005-1,1005-2,1005-3 respectively, and short bar 104 and gate line or scan line (not marking among the figure) are electrically connected by via area.Wherein, via area has contact hole 106 and connecting conductive layer 107, and part connecting conductive layer 107 is filled in and is used in the contact hole 106 short bar and holding wire are electrically connected.End at short bar 101-104 has the test pads 109 that is used for testing electrical property, and in the present embodiment, test pads 109 can be the box-shaped shape.The width of wherein said test pads 109 is greater than the width of described short bar 104, so that testing electrical property.Certainly, the shape of described test pads can be other shapes that can be equal to arbitrarily such as circular, trapezoidal, pentagon, hexagon.
In some other embodiment of the present invention, also can have switch element on the described holding wire in case testing fixture detect finish after with holding wire and short bar disconnection.But preferably, do not have switch element in the present embodiment on the holding wire.This mainly be because, if on described holding wire, make described switch element, then in process for making, may cause electric charge gathering in a large number in described switch element district or described via area, thereby make described switch element or described via area burn, cause described holding wire can not be electrically connected, finally influence testing electrical property with described short bar.
Described testing fixture 20 also comprises the spike projection 108 that is electrically connected with short bar 101-104.
Preferably, spike projection 108 is positioned at the end that does not have test pads 109 of short bar 101-104.
Preferably, described short bar 101-104 of the present invention can be arranged in one deck, also can be arranged in different layers.Particularly, when described short bar was positioned at one deck, described short bar can together be made with scan line or data wire, and with described scan line or data line bit in same one deck; When described short bar was positioned at different layers, wherein the partial short circuit rod can together be made with data wire, and with described data line bit in one deck, the remainder short bar can together be made with scan line, and is arranged in one deck with scan line.But when described short bar was positioned at different layers, technology was complicated when forming the via area of described short bar and described holding wire, and therefore best, described in the present embodiment short bar is in one deck.
Preferably, spike projection 108 and short bar 101-104 are positioned at same one deck.Concrete, spike projection 108 is the extension of short bar 101-104, just the end of short bar 101-104 is designed to the spike projection 108 of horn shape or taper.Certainly, in other embodiment, spike projection 108 also can be positioned at different layers with short bar.
Preferably, a tip is all only arranged is horn shape or taper spike projection to described each short bar 101-104.This is because the spike projection that all only has a spike projection to have a plurality of horn shapes or taper compared to the tip of same short bar at each short bar 101-104 can reduce the processing procedure precision; And short bar do not need to do too wide, the high density that is particularly suitable in the present panel designs is set type; And can improve the utilance of glass; Simultaneously be arranged so that like this pattern precision to exposure mask plate is less demanding in manufacturing process.
Preferably, the most advanced and sophisticated position of spike projection does not have insulating barrier, or the insulating barrier of tip portion is etched away in manufacture process, can further improve the efficient of discharge so yet, reduces the risk that via area is burnt.
As shown in Figure 4, spike projection 108 is directly exposed in the air, in case therefore static is excessive in the manufacture process, on short bar 101-104 and the electric charge of contact hole 106 places accumulation will move toward spike projection 108 positions immediately, at its tip directly to atmospherical discharges, greatly reduce static to via area, the especially damage of contact hole 106 makes testing electrical property normally carry out.
In addition, in the present invention, can also be provided with an attached cusp field (figure does not show) at the opposite side of described spike projection 108 in addition, described attached cusp field is positioned at outside described effective display part, and it is corresponding to have one or more most advanced and sophisticated and described spike projection 108, be beneficial to the tip to point discharge, the enhanced discharge effect.Described attached cusp field is not electrically connected with short bar, and preferably, described attached cusp field can be arranged on (figure does not show) on the public electrode.
Embodiment two
Fig. 5 is the structural representation of checkout gear and holding wire among the display unit embodiment two of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 5 describes display unit of the present invention.
The same section of second embodiment and first embodiment repeats no more, in the present embodiment:
As shown in Figure 5, an end that does not have test pads 209 at short bar 201-204 does not have the spike projection, and has spike projection 100 on test pads 209.
Preferably, spike projection 100 and test pads 209 are positioned at same one deck.Concrete, spike projection 100 is the extension of test pads 209, just an end of test pads 209 is designed to the spike projection 100 of horn shape or taper.Certainly, in other embodiment, spike projection 100 also can be positioned at different layers with test pads 209.
Embodiment three
Fig. 6 is the structural representation of checkout gear and holding wire among the display unit embodiment three of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 6 describes display unit of the present invention.
The same section of the 3rd embodiment and first embodiment repeats no more, in the present embodiment:
As shown in Figure 6, not only an end that does not have a test pads 309 at short bar 301-304 has the spike projection, also has spike projection 300 in addition on test pads 309.Because all there is the spike projection at the short bar two ends, electrostatic charge can move to two spike protruding ends fast, greatly reduces the risk that via area is burnt.
Preferably, an end that does not have test pads of same described short bar has a described spike projection.
Preferably, spike projection 300 and test pads 309 are positioned at same one deck, and be concrete, and spike projection 300 is the extension of test pads 309, and just the end with test pads 309 is designed to the spike projection 300 that the tip is horn shape or taper.Certainly, in other embodiment, spike projection 300 also can be positioned at different layers with test pads 309.
Embodiment four
Fig. 7 is the structural representation of checkout gear and holding wire among the display unit embodiment four of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 7 describes display unit of the present invention.
The same section of the 4th embodiment and first embodiment repeats no more, in the present embodiment:
As shown in Figure 7, the short bar 401-404 end that do not have a test pads 409 has spike projection 408.And the tip that is positioned at the spike projection 408 on the short bar that connects the unlike signal line is oppositely arranged.Wherein, described spike projection can be arranged in one deck and also can be arranged in different layers.When described spike projection is positioned at different layers, except being oppositely arranged, also can allowing part and overlap between the described spike projection.
Preferably, an end that does not have test pads of same described short bar has a described spike projection.
Certainly, in other embodiment, two or three in also can spike projection 408 taper off to a point and most advanced and sophisticated relative structures, and for example the tip of spike projection 408-1,408-3 is oppositely arranged, and the tip of spike projection 408-1,408-2,408-3 is oppositely arranged.
Concrete, can not have insulating barrier on spike projection 408 surfaces, thereby improved the efficient of discharge, reduced the damage of static to via area.
As shown in Figure 7, because the tip of spike projection 408 is oppositely arranged, even therefore static is excessive in the manufacture process, on short bar 401-404 and the electric charge of via area place accumulation all can move toward spike projection 408 positions immediately, therefore make most advanced and sophisticated to point discharge, greatly reduce the damage of static, make testing electrical property normally carry out via area.
Embodiment five
Fig. 8 is the structural representation of checkout gear and holding wire among the display unit embodiment five of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 8 describes display unit of the present invention.
The same section of the 5th embodiment and the 4th embodiment repeats no more, in the present embodiment:
Have at the end of short bar 501-504 and to be used for the test pads 509 of testing electrical property, and have spike projection 500 on the test pads 509.
Preferably, an end that does not have test pads of same described short bar has a described spike projection.
Since short bar do not have test pads one end, and the spike projection is set all on the test pads, so electrostatic charge can move to two ends spike protruding end fast, greatly reduce the risk that via area is burnt.
Embodiment six
Fig. 9 is the structural representation of checkout gear and holding wire among the display unit embodiment six of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 9 describes display unit of the present invention.
The same section of the 6th embodiment and the 5th embodiment repeats no more, in the present embodiment:
Have at the end of short bar 601-604 and to be used for the test pads 609 of testing electrical property, and have spike projection 600 on the test pads 609, the concrete end with test pads 609 is designed to the spike projection 600 that the tip is horn shape or taper.And the tip that connects described each the spike projection 600 on the short bar of unlike signal line also is oppositely arranged, spike projection 609-1 for example, and 609-2,609-3,609-4 is oppositely arranged, and also can be wherein two or 3 spike projectioies be oppositely arranged.
Certainly, in other embodiment, can only the spike raised tip on the test pads be oppositely arranged, and test pads 409 1 ends that do not have of short bar are not provided with most advanced and sophisticated relative spike projection, and the spike projection perhaps is not set yet.
Because all there is the spike projection at the short bar two ends in present embodiment, electrostatic charge can move to two spike protruding ends fast, and the spike projection at two ends all is set to most advanced and sophisticated relative structure, thereby pass through most advanced and sophisticated to point discharge, accelerate the release of electrostatic charge, therefore greatly reduced the risk that via area is burnt.
Embodiment seven
Figure 10 is the structural representation of checkout gear and holding wire among the display unit embodiment seven of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 10 describes display unit of the present invention.
The same section of the 7th embodiment and the foregoing description repeats no more, in the present embodiment:
As shown in figure 10, short bar 701-704 is near the position that is electrically connected with holding wire, for example short bar 701-704 is electrically connected by via area with holding wire, by via area, also promptly has one or more spike projection 708 on contact hole 106 sides, described spike projection 708 can be positioned on the short bar, also can be positioned on the holding wire.Described spike projection 708 can be positioned at the same side of short bar as shown in figure 10, also can be positioned at the not homonymy of short bar, perhaps on the side of each short bar, be provided with the spike projection, and the spike projection between each short bar is provided with relatively all near adjacent both sides short bar.
Preferably, spike projection 708 and short bar 701-704 are positioned at same one deck, and concrete, the tip of spike projection 708 is horn shape or taper.
Concrete, in the part of the test pads 709 of short bar 701-704, and the surface of the tip portion of the spike projection 708 of short bar 701-704 does not have insulating barrier.
Certainly, in other embodiments, also can have the spike projection in the foregoing description on the described test pads 709.
As shown in figure 10, because spike projection 708 is arranged on by the via area, and spike projection 708 is directly exposed in the air, in case therefore static is excessive in the technical process, electric charge in the accumulation of via area place will move toward spike projection 708 positions immediately, at its tip directly to atmospherical discharges, greatly reduce the damage of static to via area, make testing electrical property normally carry out, because via area is easily because static is damaged and influences testing electrical property, therefore preferably spike projection 708 is arranged on the via area side and can effectively prevents the damage that static causes via area.
Embodiment eight
Figure 11 is the structural representation of checkout gear and holding wire among the display unit embodiment eight of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 11 describes display unit of the present invention.
The same section of the 8th embodiment and the 7th embodiment repeats no more, in the present embodiment:
Described spike projection 808 is positioned at identical layer with holding wire, for example with data line bit in identical layer, and be positioned at the top of data wire, be the extension of data wire outside short bar.Spike projection 808 is positioned at identical layer with holding wire in the present embodiment, thereby makes that the processing step of etching formation spike projection is simpler.In addition, on the side of each described holding wire, be provided with described spike projection, and the described spike projection of adjacent described holding wire is provided with relatively all near adjacent both sides holding wire.
Embodiment nine
Figure 12 is the structural representation of checkout gear and holding wire among the display unit embodiment nine of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 12 describes display unit of the present invention.
The same section of the 9th embodiment and the 8th embodiment repeats no more, in the present embodiment:
On short bar, except the spike projection 808 that is positioned at the holding wire top, also have another spike projection 711 on the via area side, spike projection 711 and short bar are positioned at same one deck, and spike projection 711 is horn shape or taper.
Embodiment ten
Figure 13 is the structural representation of checkout gear and holding wire among the display unit embodiment ten of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 13 describes display unit of the present invention.
The same section of the tenth embodiment and the 9th embodiment repeats no more, in the present embodiment:
Embodiment 11
Figure 14 is the structural representation of checkout gear and holding wire among the display unit embodiment 11 of the present invention.Structure below in conjunction with checkout gear and holding wire shown in Figure 14 describes display unit of the present invention.
The same section of the 11 embodiment and the foregoing description repeats no more, in the present embodiment:
As shown in figure 14, the other spike projection 713 and 714 that is provided with of described short bar and holding wire link position, spike projection 713 and 714 lays respectively on the two sides of short bar near adjacent both sides short bar, and the tip of the spike projection 714 on the spike of short bar projection 713 short bar adjacent with it is oppositely arranged.
Being provided with of spike projection can combination in any in each embodiment in addition.List no longer one by one at this.So in the foregoing description, in case static is excessive in the manufacture process, will be moving toward the point displacement immediately on short bar with the electric charge of contact hole place accumulation, discharge tapers off to a point at the tip, greatly reduce the damage of static, make testing electrical property normally carry out via area.
The spike convex design of Figure 10 of the present invention-14 can repid discharge on the via area next door.Do not have insulating barrier above the tip of the present invention, and do not have insulating barrier between tip and the tip, improved the efficient of discharge; The static discharge effect is obvious.In addition, the material of described spike projection of the present invention can be in aluminium, aluminium neodymium alloy, tin indium oxide, molybdenum, the molybdenum neodymium alloy etc. one or more, preferential, the material of the described spike projection among the present invention is a tin indium oxide, because of it has stronger corrosion resistance.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.
Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (23)
1. display unit comprises: by effective display part that display pixel constitutes, the holding wire and the testing fixture that are electrically connected with effective display part, described testing fixture comprise the short bar of discharging at interval; It is characterized in that described each short bar is electrically connected by via area and different holding wire respectively, and an end of described short bar has test pads, described testing fixture also comprises the spike projection that is electrically connected with short bar.
2. display unit according to claim 1 is characterized in that, described spike projection is positioned at an end that does not have test pads of described short bar.
3. display unit according to claim 2 is characterized in that, an end that does not have test pads of same described short bar has a described spike projection.
4. display unit according to claim 3 is characterized in that, the tip of the spike projection of an end that does not have test pads of the described short bar of connection unlike signal line relatively.
5. display unit according to claim 1 is characterized in that, described spike projection is positioned on the test pads of described short bar.
6. display unit according to claim 5 is characterized in that, the tip of the spike projection on the test pads of the described short bar of connection unlike signal line relatively.
7. display unit according to claim 3 is characterized in that, has described spike projection on the test pads of described short bar.
8. display unit according to claim 7 is characterized in that, the tip of the spike projection of an end that does not have test pads of the described short bar of connection unlike signal line relatively.
9. display unit according to claim 8 is characterized in that, the tip of the spike projection on the test pads of the described short bar of connection unlike signal line relatively.
10. display unit according to claim 7 is characterized in that, the tip of the spike projection on the test pads of the described short bar of connection unlike signal line relatively.
11. display unit according to claim 1 is characterized in that, described spike projection is positioned at by the described via area.
12. display unit according to claim 11 is characterized in that, has described spike projection respectively on the side of described short bar near adjacent both sides short bar, and the described spike projection on the adjacent described short bar is relatively most advanced and sophisticated.
13., it is characterized in that the tip of described spike projection is horn shape or taper according to any described display unit of claim 1 to 12.
14., it is characterized in that described short bar and described spike projection are positioned at same one deck according to any described display unit of claim 1 to 12.
15., it is characterized in that the material of described spike projection is one or more in aluminium, aluminium neodymium alloy, molybdenum, the molybdenum neodymium alloy according to any described display unit of claim 1 to 12.
16., it is characterized in that the material of described spike projection is a tin indium oxide according to any described display unit of claim 1 to 12.
17. display unit according to claim 12 is characterized in that, described holding wire is provided with described spike projection on the side near adjacent both sides holding wire, and the described spike projection on the adjacent described holding wire all is provided with relatively.
18. according to claim 1 or 17 described display unit, it is characterized in that, the opposite side of described spike projection is provided with an attached cusp field in addition, and described attached cusp field is positioned at outside described effective display part, and has that one or more is most advanced and sophisticated corresponding with described spike projection.
19. display unit according to claim 18 is characterized in that, described attached cusp field is arranged on the public electrode.
20. display unit according to claim 11 is characterized in that, described holding wire and described spike projection are positioned at same one deck.
21. display unit according to claim 20 is characterized in that, the other spike projection of described via area is the extension of holding wire outside this short bar that is connected with short bar.
22. display unit according to claim 21, it is characterized in that, described via area other also have with described short bar be positioned at spike projection with one deck, be positioned at the spike projection of one deck with short bar with holding wire and be positioned at most advanced and sophisticated relative with the spike projection of one deck.
23., it is characterized in that the tip of described spike projection is horn shape or taper according to any described display unit of claim 20-22.
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| CN 200910048490 CN101847628B (en) | 2009-03-27 | 2009-03-27 | Display device |
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| CN 200910048490 CN101847628B (en) | 2009-03-27 | 2009-03-27 | Display device |
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| CN101847628A true CN101847628A (en) | 2010-09-29 |
| CN101847628B CN101847628B (en) | 2013-11-06 |
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