CN101718933A - LCD (Liquid Crystal Display) panel and repair circuit thereof - Google Patents
LCD (Liquid Crystal Display) panel and repair circuit thereof Download PDFInfo
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- CN101718933A CN101718933A CN200910261135A CN200910261135A CN101718933A CN 101718933 A CN101718933 A CN 101718933A CN 200910261135 A CN200910261135 A CN 200910261135A CN 200910261135 A CN200910261135 A CN 200910261135A CN 101718933 A CN101718933 A CN 101718933A
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Abstract
The invention provides a repair circuit of an LCD (Liquid Crystal Display) panel, comprising a data line repair wire, a scanning strip repair wire, a winding wire, a connecting line, a first conducting layer, a second conducting layer and a welding conducting layer, wherein data line repair wire and the scanning strip repair wire are respectively arranged at one ends of a data line and a scanning strip in the floating, insulation and crossing way; a surround wire surrounds the LCD panel and is arranged at the other ends of the scanning strip and the data line in the floating, insulation and crossing way and is partly overlapped with the scanning strip repair wire in electrical insulation; one end of the connecting line is overlapped with part of the data line repair wire in electrical insulation, and the other end is electrically connected with the first conducting layer; and the welding conducting layer is arranged at the other end of the surround wire and is overlapped with the first conducting layer and the second conducting layer partly in electrical insulation. The repair circuit of an LCD panel can realize repairing capability when power fault occurs to a defect data line or a defect scanning strip and greatly reduce scrappage of products.
Description
Technical field
The present invention relates to a kind of display panels, relate in particular to a kind of display panels and fix-up circuit thereof with data line patch cord and sweep trace patch cord.
Background technology
Along with the development of semiconductor devices and display fabrication techniques, has the picture quality height, display panels low in energy consumption, superior function such as radiation is little has become the main flow in market gradually.Typically, display panels comprises a multiple substrate (array substrate), a colored filter substrate (color filter substrate) and the liquid crystal layer between multiple substrate and colored filter substrate.Usually, colored filter substrate is called top glass substrate, and multiple substrate is called lower glass substrate.
On lower glass substrate, be formed with multi-strip scanning line, many data lines and a plurality of image element circuit.Wherein, each image element circuit is defined within the crossover location of one scan line and corresponding data line, each pixel receives sweep signal by corresponding scanning line, and receive pixel voltage by corresponding data line, so that on this lower glass substrate, form the viewing area based on these sweep traces, data line and image element circuit.In addition, many patch cords (rescue line) can be set also on lower glass substrate, the part of these patch cords is formed on the lower glass substrate, another part is overlapped in these data lines, that is, patch cord and data line are that part is staggered up and down mutually, and are electrically insulated each other.When data line because of defective breaking phenomena takes place, utilize laser to come staggered overlapping place of welding patch cord and data line (to be also referred to as the laser burning-on method: Laser Welding), form electric connection.In this sense, patch cord can be used as the alternate route of a certain defective data line, is sent to respective pixel with normal display image by control signal being changed by patch cord, thereby reduces scrappage greatly.
But in current display panels, fix-up circuit only is designed to mostly at the data line defective on the lower glass substrate, and can not repair the online defective of scanning.Therefore, when one or more defective sweep trace can't normally receive sweep signal, it is powerless that fix-up circuit also seems.
Summary of the invention
At the existing above-mentioned technological deficiency of the fix-up circuit of display panels in the prior art, the invention provides a kind of display panels and fix-up circuit thereof with data line patch cord and sweep trace patch cord.
According to one embodiment of the invention, provide a kind of display panels fix-up circuit.This fix-up circuit comprises at least: a data line patch cord, one scan line patch cord, are around line, a connecting line, one first conductive layer, one second conductive layer and a welding conductive layer.The data line patch cord is floated insulation across an end of data line, the sweep trace patch cord end of insulation across sweep trace of floating.Around wire loop around display panels and the insulation of floating across the other end of sweep trace and data line, and partially overlap the sweep trace patch cord and be electrically insulated around line.One end of connecting line and data line repair line part are overlapping and be electrically insulated, the other end of connecting line and the first conductive layer electrical couplings, more specifically, the other end of connecting line at first electrically connects with the input end of operational amplifier, and then output terminal and the electric connection of first conductive layer by operational amplifier.In addition, the welding conductive layer is positioned at the other end around line, and overlaps and be electrically insulated with first conductive layer and second conductive layer.
Preferably, more comprise one first potentiometric amplifier between the connecting line and first conductive layer.Wherein, the input end of first potentiometric amplifier electrically connects the other end of connecting line, and the output terminal of first potentiometric amplifier electrically connects first conductive layer.
Preferably, around between line and this second conductive layer, more comprise one second potentiometric amplifier.Wherein, the input end of second potentiometric amplifier electrically connects second conductive layer, and the output terminal of second potentiometric amplifier electrically connects the end around line.
Preferably, fix-up circuit more comprises an insulation course, be positioned on the other end, first conductive layer and second conductive layer around line or under.Correspondingly, the welding conductive layer be positioned on the insulation course or under.
According to another embodiment of the present invention, provide the display panels of a kind of repairing back.This display panels comprises: a data line patch cord, one scan line patch cord, one first conductive layer, are around line, one second conductive layer, a welding conductive layer and an insulation course.The data line patch cord is across the one end setting of many data lines, and only electrically connects with one of many data lines.The sweep trace patch cord is floated insulation across sweep trace one end., and electrically connect around display panels around wire loop with the other end of the data line of data line patch cord electric connection, and overlapping and be electrically insulated around line and sweep trace repair line part.First conductive layer and data line patch cord electrically connect, and second conductive layer electrically connects with a end around line.The welding conductive layer partially overlaps the other end, first conductive layer and second conductive layer around line, and electrically connects the other end and first conductive layer around line.In addition, insulation course is between the other end, first conductive layer and second conductive layer and welding conductive layer around line.
Preferably, one of data line is one to have the data line of defective.According to an embodiment, the laser welding first pre-point of repairing is to electrically connect data line patch cord and the data line with defective.The laser welding second pre-point of repairing is to electrically connect around the line and the other end with data line of defective.Laser welding the 3rd is pre-repairs point electrically connecting the welding conductive layer and the other end around line, and laser welding the 4th pre-point of repairing is to electrically connect the welding conductive layer and first conductive layer.
Preferably, display panels more comprises a connecting line, to electrically connect first conductive layer and data line patch cord.In addition, more comprise one the 5th pre-point of repairing, laser welding the 5th pre-point of repairing is to electrically connect data line patch cord and connecting line.
Preferably, more comprise a potentiometric amplifier between first conductive layer and data line patch cord.Wherein the input end of potentiometric amplifier electrically connects the data line patch cord, and the output terminal of potentiometric amplifier electrically connects first conductive layer.
According to another embodiment of the present invention, provide the display panels of a kind of repairing back.This display panels comprises: one scan line patch cord, a data line patch cord, a connecting line, are around line, one first conductive layer, one second conductive layer, a welding conductive layer and an insulation course.The sweep trace patch cord is across the one end setting of multi-strip scanning line, and only electrically connects with one of multi-strip scanning line.The data line patch cord is floated insulation across data line one end., and electrically connect around display panels around wire loop, and electrically connect with the sweep trace patch cord with the other end of the sweep trace of sweep trace patch cord electric connection.One end of connecting line and data line patch cord are overlapping and be electrically insulated the other end of connecting line and the electric connection of first conductive layer.Second conductive layer with electrically connect around an end of line, and the welding conductive layer partially overlaps the other end, first conductive layer and second conductive layer around line, and electrically connects the other end and second conductive layer around line.Insulation course is between the other end, first conductive layer, second conductive layer and this welding conductive layer around line.
Preferably, one of multi-strip scanning line is one to have the sweep trace of defective.According to an embodiment, the laser welding first pre-point of repairing is to electrically connect sweep trace patch cord and the sweep trace with defective.The laser welding second pre-point of repairing is to electrically connect around the line and the other end with sweep trace of defective.Laser welding the 3rd pre-point of repairing is to electrically connect around line and sweep trace patch cord.Laser welding the 4th is pre-repairs point electrically connecting the welding conductive layer and the other end around line, and laser welding the 5th pre-point of repairing is to electrically connect the welding conductive layer and second conductive layer.
Preferably, around more comprising a potentiometric amplifier between the line and second conductive layer.
Adopt the fix-up circuit of display panels among the present invention, but not only can realize the repair ability of the electrical fault of defective data line, but but also can realize the repair ability of the electrical fault of defective sweep trace, thereby reduce the scrappage of product.In addition, when repair data line or sweep trace, this fix-up circuit uses changeover module to realize the two-way function of single cabling.
Description of drawings
The reader will become apparent various aspects of the present invention after the reference accompanying drawing has been read the specific embodiment of the present invention.Wherein,
Fig. 1 illustrates the principle schematic that display panels of the prior art is used to repair the fix-up circuit of data line;
Fig. 2 illustrates according to one aspect of the present invention, has the structural representation of the display panels of data line patch cord and sweep trace patch cord;
Fig. 3 illustrates in the switching device shifter of Fig. 2 the synoptic diagram of position relation between first conductive layer, second conductive layer and the welding conductive layer;
Fig. 4 illustrates the loop that fix-up circuit on the display panels among Fig. 2 is used to repair data line and moves towards synoptic diagram; And
Fig. 5 illustrates the loop that fix-up circuit on the display panels among Fig. 2 is used to repair sweep trace and moves towards synoptic diagram.
[primary clustering symbol description]
100: around line 400: around line
102: data line 402: the data line breakpoint
104: sweep trace 404: the data line patch cord
106: sweep trace breakpoint 406: connecting line
108: sweep trace patch cord 408: changeover module
110: operational amplifier 410: potentiometric amplifier
112: the pre-point 412 of repairing: potentiometric amplifier
114: the zone 414 of overlapping: repair a little in advance
116: tie point 416: repair a little in advance
200: around line 418: repair a little in advance
202: data line 420: repair a little in advance
204: sweep trace 422: repair a little in advance
206: data line patch cord 500: around line
208: connecting line 502: the sweep trace breakpoint
210: operational amplifier 504: the sweep trace patch cord
212: changeover module 506: changeover module
214: sweep trace patch cord 508: potentiometric amplifier
30: welding conductive layer 510: potentiometric amplifier
32: intermediate insulating layer 512: repair a little in advance
34: metal level 514: repair a little in advance
300: the pre-point 520 of repairing: repair a little in advance
302: repair a little in advance
304: repair a little in advance
306: repair a little in advance
Embodiment
With reference to the accompanying drawings, the specific embodiment of the present invention is described in further detail.In whole description, identical Reference numeral is represented identical parts.Should be understood that, in the application's Figure of description, " solid line " and " dotted line " that is used to electrically connect a certain assembly and another assembly only is specific embodiments of the invention for convenience of description, can not induce those skilled in the art that it is interpreted as, solid line represents to electrically connect and dotted line is represented electrical isolation.It is to be further understood that hereinafter and to describe that " first ", " second ", " the 3rd " be specific embodiments of the invention and the assembly function of same type is separated for convenience of description just, are not that the application is carried out certain constraint or qualification.
Fig. 1 illustrates the principle schematic that display panels of the prior art is used to repair the fix-up circuit of data line.In Fig. 1, the fix-up circuit of display panels comprises at least: one around line 100, many data lines 102, multi-strip scanning line 104, data line breakpoint (data line open) 106, many data line patch cords 108, amplifiers 110 and the pre-points 112 of repairing.It is pointed out that pre-repairing point 112 be arranged in many data lines 102 on the display panels any one with the zone of overlapping around line 100.In the ordinary course of things, though the pre-point 112 of repairing is positioned at the zone of overlapping of the two, but data line 102 be electrically insulated around line 100, only put 112 o'clock being fused to pre-repairing such as laser, in the data line 102 any one just electric connection around line 100.
Be surrounded on display panels around line 100, the insulation of floating is overlapped and is electrically insulated around line 100 and data line patch cord 108 across the end at some data lines 102.In addition, data line patch cord 108 is floated insulation across the other end in respective data lines 102.When electrical fault takes place in a certain data line in many data lines 102, by the overlap zone 114 of welded ring coiling 100 with data line patch cord 108, make data line patch cord 108 replace this defective data line, receive the pixel voltage of display unit, and display image.After the data line with breakpoint 106 is by 108 maintenances of data line patch cord, the flow direction of its fix-up circuit can be expressed as with arrow according to Fig. 1: one of data line with breakpoint 106 is held at first and is electrically connected to data line patch cord 108 through tie point 116, data line patch cord 108 sees through around the overlap zone 114 of line 100 with data line patch cord 108 and is electrically connected to around line 100 then, and the mode of above-mentioned electric connection can adopt laser burning-on method (laser welding).Can comprise an amplifier 110 in addition around line, make that it was too much to be unlikely to signal attenuation when signal was resent to the other end of the data line with breakpoint 106 via data line patch cord 108 and around line 100.At last, see through the other end that pre-repairing point 112 after the laser welding is electrically connected at the data line with breakpoint 106 around line 100, with the mending function of realization data line.
By top description as can be known, display panels of the prior art is when if the defective data line occurring, can see through be looped around the panel outer rim realize that around line and data line patch cord normal image shows.Yet the signal transmission issues the when fix-up circuit of this display panel has also only solved data line electrical fault takes place does not but relate to the reparation problem of defective sweep trace.So, if display panels is seeing through sweep trace when the thin film transistor (TFT) transmission scan signal appearance at pixel place is electrically opened circuit, the fix-up circuit on the plate can not be solved.
In order to solve the technological deficiency that occurs in the display panels as shown in Figure 1, Fig. 2 illustrates one embodiment of the present of invention, has the structural representation of the display panels of data line patch cord and sweep trace patch cord.Fix-up circuit on the display panels of employing Fig. 2 not only can be repaired the data line on the glass substrate, can also repair the sweep trace on the glass substrate.
In more detail, the fix-up circuit of the display panels among Fig. 2 comprises at least: around line 200, many data lines 202, multi-strip scanning line 204, many data line patch cords 206, connecting line 208, operational amplifier 210, changeover module 212 and multi-strip scanning line patch cords 214.
Be surrounded on display panels around line 200, float and insulate, and overlap and be electrically insulated around a part and the multi-strip scanning line patch cord 214 of line 200 across a end at some data lines 202.In addition, an end and the data line patch cord 206 of connecting line 208 are overlapped and are electrically insulated, and the other end of connecting line 208 is electrically connected to changeover module 212.
It is to be noted, in Fig. 2, sweep trace patch cord 214 is floated insulation across an end of multi-strip scanning line 204, data line patch cord 206 float the insulation many data lines 202 an end, a part and sweep trace patch cord 214 around line 200 are overlapped and are electrically insulated, and an end and the data line patch cord 206 of connecting line 208 are overlapped and be electrically insulated.When the display panels requirement is repaired one or more data line through fix-up circuit, can adopt laser welding to come welding data line patch cord 206 and the overlapping region of data line 202 and the overlapping region of connecting line 208 and data line patch cord 206 with defective, and then utilize electrical switching on the changeover module 212, between around line 200 and data line patch cord 206, form electrical path; Similarly, when the display panels requirement is repaired one or more sweep trace 204 through fix-up circuit, can adopt laserwelding to come welding sweep trace patch cord 214 with the overlapping region of sweep trace 204 and around the overlapping region of line 200 with sweep trace patch cord 214 with defective, and then utilize electrical switching on the changeover module 212, between around line 200 and sweep trace patch cord 214, form electrical path.
In Fig. 2, amplifier 210 comprises first amplifier and second amplifier, and wherein, first amplifier is used to electrically connect changeover module 212 and connecting line 208, the second amplifiers are used for electrically connecting around line 200 and changeover module 212.When fix-up circuit carry out to be repaired operation when eliminating the electrical defective of data line, connecting line 208 is electrically connected to the positive input terminal (indicating with symbol "+") of first amplifier, and the output terminal of first amplifier (indicating with symbol "-") is electrically connected to around line 200 through changeover module 212; Equally, when fix-up circuit execution reparation operation scans online electrical defective to eliminate, end around line 200 sees through the positive input terminal (indicating with symbol "+") that changeover module 212 is electrically connected to second amplifier, and the output terminal of second amplifier (indicating with symbol "-") is electrically connected to the other end around line 200.
From the above, the changeover module among Fig. 2 212 is one of significant components of repairing sweep trace or data line.That is to say that changeover module both can electrically connect around line and sweep trace patch cord, also can electrically connect around line and data line patch cord.In order more clearly to describe the inner structure of changeover module, Fig. 3 illustrates in the changeover module of Fig. 2 the synoptic diagram of position relation between first conductive layer, second conductive layer and the welding conductive layer.
In Fig. 3, changeover module 212 comprise at least welding conductive layer 30, intermediate insulating layer 32, with the metal level 34, first conductive layer 36 and second conductive layer 38 that electrically connect around line one end.Wherein, first conductive layer 36 electrically connects with an end of connecting line, and second conductive layer 38 electrically connects with the other end around line.A kind of therein embodiment more comprises first potentiometric amplifier between the connecting line and first conductive layer 36, and wherein the positive input terminal of first potentiometric amplifier electrically connects an end of this connecting line, and the output terminal of first potentiometric amplifier electrically connects this first conductive layer 36.A kind of therein embodiment more comprises second potentiometric amplifier around line and 38 of second conductive layers, and wherein the positive input terminal of second potentiometric amplifier output terminal that electrically connects second conductive layer, 38, the second potentiometric amplifiers electrically connects this other end around line.Those of ordinary skill in the art should be appreciated that first potentiometric amplifier and second potentiometric amplifier can adopt the circuit design of single operational amplifier, also can adopt the circuit design of dual operational amplifier.For example, when the pixel voltage benchmark of the scanning voltage of sweep trace and data line not simultaneously, first and second potentiometric amplifiers in the changeover module adopt the dual operational amplifier design.For example, when adopting single operational amplifier to design, the supply voltage of this operational amplifier must be greater than the maximal value in scanning voltage and the pixel voltage.
Those of ordinary skill in the art should also be appreciated that, intermediate insulating layer 32 is between welding conductive layer 30 and first conductive layer 36 or second conductive layer 38, therefore, insulation course 32 can be positioned at first conductive layer 36 or second conductive layer 38 above or below, correspondingly, welding conductive layer 30 should be positioned at insulation course 32 above or below.
In Fig. 3, pre-repair point 300 and 302 all be positioned at welding conductive layer 30 and with the zone of overlapping of the metal level 34 that electrically connects around line one end, pre-repairing point 304 is positioned at the zone of overlapping of the welding conductive layer 30 and second conductive layer 38, and pre-repairing point 306 is positioned at the zone of overlapping of the welding conductive layer 30 and first conductive layer 36.Be not difficult to find out, the laser welding is repaired a little in advance 300 or 302 can electrically connect metal level 34 and welding conductive layer 30, the laser welding is repaired a little in advance 304 can electrically connect the welding conductive layer 30 and second conductive layer 38, and the laser welding is repaired in advance a little and 306 can be electrically connected the welding conductive layer 30 and first conductive layer 36.And when the laser welding repaired a little 300 and 304 in advance, the fix-up circuit of display panels was used to repair the electrical fault of sweep trace.When the laser welding repaired a little 302 and 306 in advance, the fix-up circuit of display panels was used for the electrical fault of repair data line.Those of ordinary skill in the art it is also understood that when the laser welding repairs a little 302 and 306 in advance, has been electrically connected to the data line patch cord with metal level 34 electrically connects around line one end, and at this moment, the laser welding does not repair a little 300 and 304 in advance again.This is because welding conductive layer 30 can only be electrically connected to data line patch cord or sweep trace patch cord at synchronization.For illustrate respectively fix-up circuit in the display panels carry out circuit flow that data line reparation and sweep trace repair to, Fig. 4 illustrates the loop that fix-up circuit on the display panels among Fig. 2 is used to repair data line and moves towards synoptic diagram, and Fig. 5 illustrates the loop that fix-up circuit on the display panels among Fig. 2 is used to repair sweep trace and moves towards synoptic diagram.In Fig. 4 and Fig. 5, arrow schematically shows the trend of circuit loop.
Should be pointed out that the fix-up circuit among Fig. 4 and Fig. 5 just schematically described the circuit theory that gives repair data line and sweep trace according to one embodiment of the invention, but purpose of the present invention is not confined to this.In Fig. 4, fix-up circuit comprises at least around line 400, data line breakpoint 402, many data line patch cords 404, connecting line 406, changeover module 408, potentiometric amplifier 410 and potentiometric amplifiers 412.In one embodiment, changeover module 408 is corresponding to the changeover module among Fig. 2 212, and its inner structure concerns corresponding to the position between metal level among Fig. 3 34, first conductive layer 36 and second conductive layer 38.
When electrical fault takes place in a certain data line in many data lines, at first, laser is fused to pre-repairing point 414 to electrically connect an end of data line patch cord 404 and this defective data line, then, laser is fused to pre-repairing point 416 to electrically connect around the other end of line 400 with this defective data line.Meanwhile, laser is fused to pre-repairing point 418 to electrically connect data line patch cord 404 and connecting line 406.At last, in changeover module 408, laser is fused to pre-repairing point 420 with the electric connection welding conductive layer 30 and first conductive layer 36, and laser is fused to pre-repairing point 422 to electrically connect welding conductive layer 30 and metal level 34.According to one embodiment of the invention, the pre-point 420 of repairing is corresponding to the pre-repairing point 306 among Fig. 3, and the pre-point 422 of repairing is corresponding to the pre-repairing point 302 among Fig. 3.What deserves to be mentioned is that each pre-method of repairing some electric connection two line segments or two conductive layers is laser burning-on method (laser welding) at this, but not as limit.After carrying out aforesaid operations, the circuit loop of repair data line can be expressed as, one end of defective data line sees through data line patch cord 404 and connecting line 406 is electrically connected to changeover module 408, and be electrically connected to around line 400 via changeover module 408, see through the other end that pre-repairing point 416 after the laser welding is electrically connected to this defective data line at last.In one embodiment of this invention, potentiometric amplifier 410 is set between changeover module 408 and the data line patch cord 404, and its input end electrically connects this data line patch cord 404, and its output terminal is electrically connected to changeover module 408.
Be used for the fix-up circuit of repair data line in understanding Fig. 4 after, the fix-up circuit that is used to repair sweep trace will become easy.In Fig. 5, fix-up circuit comprises at least around line 500, sweep trace breakpoint 502, multi-strip scanning line patch cord 504, changeover module 506, potentiometric amplifier 508 and potentiometric amplifier 510.In one embodiment, changeover module 506 is corresponding to the changeover module among the changeover module among Fig. 2 212 and Fig. 4 408, and its inner structure concerns corresponding to the position between metal level among Fig. 3 34, first conductive layer 36 and second conductive layer 38.
When electrical fault takes place in a certain sweep trace in the multi-strip scanning line, at first, laser is fused to pre-repairing point 512 to electrically connect an end of sweep trace patch cord 504 and this defective sweep trace, then, laser is fused to pre-repairing point 514 to electrically connect around the other end of line 500 with this defective sweep trace.Meanwhile, laser is fused to pre-repairing point 516 with electric connection sweep trace patch cord 504 with around line 500.At last, in changeover module 506, laser is fused to pre-repairing point 518 with electric connection welding conductive layer 30 and metal level 34, and laser is fused to pre-repairing point 520 to electrically connect the welding conductive layer 30 and second conductive layer 38.According to one embodiment of the invention, the pre-point 518 of repairing is corresponding to the pre-repairing point 300 among Fig. 3, and the pre-point 520 of repairing is corresponding to the pre-repairing point 304 among Fig. 3.After carrying out aforesaid operations, the circuit loop of repairing sweep trace can be expressed as, one end of defective sweep trace sees through sweep trace patch cord 504 and is electrically connected to changeover module 506 around line 500, and be electrically connected to the other end around line 500 via changeover module 506, see through the other end that pre-repairing point 514 after the laser welding is electrically connected to this defective sweep trace at last.What deserves to be mentioned is that each pre-method of repairing some electric connection two line segments or two conductive layers can be laser burning-on method (laser welding) at this, but not as limit.In one embodiment of this invention, potentiometric amplifier 510 is set at changeover module 506 and around between the line 500, its input end electrically connects this changeover module 506, and its output terminal is electrically connected to the other end around line 500.
Adopt the fix-up circuit of display panels among the present invention, but not only can realize the repair ability of the electrical fault of defective data line, but but also can realize the repair ability of the electrical fault of defective sweep trace, thereby reduce the scrappage of product.In addition, when repair data line or sweep trace, this fix-up circuit uses changeover module to realize the two-way function of single cabling.
Above, describe the specific embodiment of the present invention with reference to the accompanying drawings.But those skilled in the art can understand, and under situation without departing from the spirit and scope of the present invention, can also do various changes and replacement to the specific embodiment of the present invention.These changes and replace all drop in claims of the present invention institute restricted portion.
Claims (23)
1. a display panels fix-up circuit is characterized in that, described display panels fix-up circuit comprises:
One data line patch cord, the end of insulation of floating across data line;
One scan line patch cord, the end of insulation of floating across sweep trace;
One around line, and across the other end of described sweep trace and described data line, and this is overlapping and be electrically insulated around line and this sweep trace repair line part around display panels and the insulation of floating;
One connecting line, one end and this data line repair line part are overlapping and be electrically insulated;
One first conductive layer is with the other end electric connection of this connecting line;
One second conductive layer electrically connects with this end around line; And
One welding conductive layer is positioned at this other end around line, and overlapping and be electrically insulated with this first conductive layer and this second conductive layer.
2. display panels fix-up circuit as claimed in claim 1 is characterized in that, between this connecting line and this first conductive layer, also comprises one first potentiometric amplifier.
3. display panels fix-up circuit as claimed in claim 2 is characterized in that, the input end of this first potentiometric amplifier electrically connects the other end of this connecting line, and the output terminal of this first potentiometric amplifier electrically connects this first conductive layer.
4. display panels fix-up circuit as claimed in claim 2 is characterized in that, should also comprise one second potentiometric amplifier around between line and this second conductive layer.
5. display panels fix-up circuit as claimed in claim 4 is characterized in that, the input end of this second potentiometric amplifier electrically connects this second conductive layer, and the output terminal of this second potentiometric amplifier electrically connects this end around line.
6. display panels fix-up circuit as claimed in claim 1 is characterized in that, described fix-up circuit comprise also that an insulation course is positioned on this other end around line, this first conductive layer and this second conductive layer or under.
7. display panels fix-up circuit as claimed in claim 6 is characterized in that, this welding conductive layer be positioned on this insulation course or under.
8. the display panels after the repairing is characterized in that the display panels after the described repairing comprises:
One data line patch cord also only electrically connects with one of described data line across the one end setting of many data lines;
One scan line patch cord, the insulation of floating is across sweep trace one end;
One first conductive layer electrically connects with this data line patch cord;
One around line, electrically connect around display panels and with the other end of this data line of this data line patch cord electric connection, and should be around line and this sweep trace repair line part overlapping and be electrically insulated;
One second conductive layer electrically connects with this end around line;
One welding conductive layer partially overlaps this other end around line, this first conductive layer and this second conductive layer, and electrically connects this other end and this first conductive layer around line; And
One insulation course is between this other end around line, this first conductive layer, this second conductive layer and this welding conductive layer.
9. the display panels after the repairing as claimed in claim 8 is characterized in that, one of this data line is one to have the data line of defective.
10. the display panels after the repairing as claimed in claim 9 is characterized in that, laser welding first is pre-repairs point to electrically connect this data line patch cord and this has the data line of defective.
11. the display panels after the repairing as claimed in claim 10 is characterized in that, the laser welding second pre-point of repairing has the other end of the data line of defective to electrically connect this around line and this.
12. the display panels after the repairing as claimed in claim 11, it is characterized in that, laser welding the 3rd is pre-repair point with electrically connect this welding conductive layer with should be around the other end of line, and laser welding the 4th pre-point of repairing is to electrically connect this welding conductive layer and this first conductive layer.
13. the display panels after the repairing as claimed in claim 12 is characterized in that, comprises that more a connecting line is to electrically connect this first conductive layer and this data line patch cord.
14. the display panels after the repairing as claimed in claim 13 is characterized in that, more comprises one the 5th pre-point of repairing, laser welding the 5th pre-point of repairing is to electrically connect this data line patch cord and this connecting line.
15. the display panels after the repairing as claimed in claim 8 is characterized in that, more comprises a potentiometric amplifier between first conductive layer and this data line patch cord.
16. the display panels after the repairing as claimed in claim 15 is characterized in that, the input end of this potentiometric amplifier electrically connects this data line patch cord, and the output terminal of this potentiometric amplifier electrically connects this first conductive layer.
17. the display panels after the repairing is characterized in that the display panels after the described repairing comprises:
One scan line patch cord also only electrically connects with one of described sweep trace across the one end setting of multi-strip scanning line;
One data line patch cord, the insulation of floating is across data line one end;
One connecting line, one end and this data line patch cord are overlapping and be electrically insulated;
One first conductive layer is with the other end electric connection of this connecting line;
One around line, electrically connects around display panels and with the other end of this sweep trace of this sweep trace patch cord electric connection, and electrically connects with this sweep trace patch cord;
One second conductive layer electrically connects with this end around line;
One welding conductive layer partially overlaps this other end around line, this first conductive layer and this second conductive layer, and electrically connects this other end and this second conductive layer around line; And
One insulation course is between this other end around line, this first conductive layer, this second conductive layer and this welding conductive layer.
18. the display panels after the repairing as claimed in claim 17 is characterized in that, one of described sweep trace is one to have the sweep trace of defective.
19. the display panels after the repairing as claimed in claim 18 is characterized in that, laser welding first is pre-repairs point to electrically connect this sweep trace patch cord and this has the sweep trace of defective.
20. the display panels after the repairing as claimed in claim 19 is characterized in that, the laser welding second pre-point of repairing has the other end of the sweep trace of defective to electrically connect this around line and this.
21. the display panels after the repairing as claimed in claim 20 is characterized in that, laser welding the 3rd pre-point of repairing should be around line and this sweep trace patch cord to electrically connect.
22. the display panels after the repairing as claimed in claim 21, it is characterized in that, laser welding the 4th is pre-repair point with electrically connect this welding conductive layer with should be around the other end of line, and laser welding the 5th pre-point of repairing is to electrically connect this welding conductive layer and this second conductive layer.
23. the display panels after the repairing as claimed in claim 17 is characterized in that, should more comprise a potentiometric amplifier around between line and this second conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102611352A CN101718933B (en) | 2009-12-28 | 2009-12-28 | LCD (Liquid Crystal Display) panel and repair circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102611352A CN101718933B (en) | 2009-12-28 | 2009-12-28 | LCD (Liquid Crystal Display) panel and repair circuit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101718933A true CN101718933A (en) | 2010-06-02 |
| CN101718933B CN101718933B (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102611352A Expired - Fee Related CN101718933B (en) | 2009-12-28 | 2009-12-28 | LCD (Liquid Crystal Display) panel and repair circuit thereof |
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| Country | Link |
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| CN (1) | CN101718933B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073159A (en) * | 2010-12-10 | 2011-05-25 | 深圳市华星光电技术有限公司 | Repair circuit of display panel and repair method thereof |
| WO2012162917A1 (en) * | 2011-05-30 | 2012-12-06 | 深圳市华星光电技术有限公司 | A detecting method and a detecting system for an array substrate |
-
2009
- 2009-12-28 CN CN2009102611352A patent/CN101718933B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073159A (en) * | 2010-12-10 | 2011-05-25 | 深圳市华星光电技术有限公司 | Repair circuit of display panel and repair method thereof |
| CN102073159B (en) * | 2010-12-10 | 2012-07-11 | 深圳市华星光电技术有限公司 | Repair circuit of display panel and repair method thereof |
| WO2012162917A1 (en) * | 2011-05-30 | 2012-12-06 | 深圳市华星光电技术有限公司 | A detecting method and a detecting system for an array substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101718933B (en) | 2011-05-18 |
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