CN1264135C - Planar display with data line capable of being repaired and its repair method - Google Patents
Planar display with data line capable of being repaired and its repair method Download PDFInfo
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- CN1264135C CN1264135C CN 03106898 CN03106898A CN1264135C CN 1264135 C CN1264135 C CN 1264135C CN 03106898 CN03106898 CN 03106898 CN 03106898 A CN03106898 A CN 03106898A CN 1264135 C CN1264135 C CN 1264135C
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Abstract
The present invention relates to a planar display with a data wire capable of being repaired. A shading metal wire arranged beside the data wire, and a standby repairing conducting wire bridging the data wire/the shading metal wire are used as a repairing wire. If many wire breaking positions exist in one data wire, the adjacent proper shading metal wire and the standby repairing conducting wire can be selected to match laser for fusion, and thus, the data wire can pass round the wire breaking positions. The panel display can be provided with the shading metal wire beside a grid wire, and the standby repairing conducting wire bridging the grid wire/the shading metal wire, and thus, the wire breaking positions of the grid wire can be also simultaneously repaired.
Description
Technical field
The present invention relates to a kind of method for repairing and mending of line defect, particularly relate to a kind of flat-panel screens (flatpancl display, the method for repairing and mending of data line FPD) (data line) and gate line (gate line).
Background technology
LCD (liquid crystal display, LCD) be a kind of flat-panel screens that is widely used most at present, have features such as low consumption electric power, slim light weight and low voltage drive, its displaying principle is to utilize the material behavior of liquid crystal molecule, the ordered state of liquid crystal molecule is changed, cause liquid crystal material to produce various photoelectric effect.Generally speaking, the viewing area of LCD comprises a plurality of pixel regions, each pixel region means by two gate lines (gate line) and (claims sweep trace again, scan line) rectangular area that is defined with two data lines (data line), be provided with a thin film transistor (TFT) (thin film transistor in it, hereinafter to be referred as TFT) and a pixel electrode, this thin film transistor (TFT) is a kind of switch module (switching device).
Gate line and data line mainly are to be used to provide image signal to drive pixel electrode, but influences such as the height fluctuating of substrate surface, thermal treatment, etching manufacturing process during for fear of making, gate line and data line are easy to break, and then cause opening circuit (open circuit) or the phenomenon of short circuit (short circuit).And, when the enlarged areas of LCD panel and when improving resolution, need more gate line of production quantity and data line, and live width becomes narrower, then the easier phenomenon that breaks that causes of the raising of manufacturing process degree of difficulty.Therefore, be subjected to the influence of few part broken string, need the structure and the using method thereof that develop a kind of repairing (repair) defective badly for fear of the operation of LCD panel.
Please refer to Fig. 1, it shows the existing top view of repairing the method for broken data wire.The gate line 12 that includes many horizontal expansions on the substrate 10 of an existing LCD, a plurality of gate pads 14 are arranged at one of each bar gate line 12 end respectively, the data line 16 of many longitudinal extensions, a plurality of data pads 18 are arranged at one of each bar data line 16 end respectively, and the viewing area 20 of a plurality of arranged.Each viewing area 20 is to be become with two 16 square crossing definition of data line types by two gate lines 12, and is provided with a pixel electrode 22.。In addition, substrate 10 includes many boost line 24A, 24B, 24C in addition, is positioned at the non-display area around the viewing area 20, and many boost line 24A, 24B, 24C cross over the two ends of each bar data line 16.
For instance, when forming an opening A when data line 16A generation broken string, image signal by data line 16a can't arrive opening A place, then can utilize laser or other technology, data line 16A is produced with point of crossing 26a, the 26b of boost line 24A to be electrically connected, and boost line 24A is cut off at point of contact 28a, 28b according to the shortest selected path, thus, the image signal that is sent to data line 16A just can provide via boost line 24A.But, when image signal passes through the plotted point of boost line 24A and other data line 16, the image signal distortion is worsened, especially when data line 16 numbers are numerous, the number of the plotted point that boost line 24A goes up also can increase, and then the situation of image signal deterioration can be more serious.And, from the above, repair a data line 16A and just need to expend a boost line 24A, therefore number and length increase, the gate line 12 along with boost line 24 narrows down with the width design of data line 16, resistance value and capacitance that boost line 24 is produced also can increase, and this will make sluggish growth of signal and influence the display quality of LCD.In addition, the making number of boost line 24 can be subjected to the restriction of space and area, and therefore the broken string number that can repair is quite limited.
Summary of the invention
In view of this, the present invention then proposes a kind of method for repairing and mending of data line, is additionally do not making under the situation of boost line, utilize the shading metal wire of viewing area to come the patch cord defective, and the broken string number that can repair without limits.This method also can be used for the repairing of gate line.
The invention provides a kind of planar display with data line capable of being repaired, its structure is as described below.The first shading metal wire is set respectively between pixel electrode in each pixel region and the data line, and each first shading metal wire is separated from each other.The first spare repairing lead is across first adjacent shading metal wire and the data line, and each first shading metal wire distributes the first spare repairing lead of two correspondences at least, and the first spare repairing lead is selected an insulation with the data line and the first shading metal wire at least.
In the above-mentioned planar display with data line capable of being repaired, the first spare repairing lead is extensible all to insulate from data line, the first shading metal wire or with both.
Extend under the situation of data line at the first spare repairing lead, the cross-point of the first spare repairing lead and the first shading metal wire is for repairing point.Wherein the first shading metal wire and gate line belong to the ground floor metal level, and the first spare repairing lead and data line belong to the second layer metal layer; Perhaps the first spare repairing lead and data line belong to the ground floor metal level, and the first shading metal wire and gate line belong to the second layer metal layer.
Extend under the situation of the first shading metal wire at the first spare repairing lead, the cross-point of the first spare repairing lead and data line is for repairing point.Wherein the first spare repairing lead, the first shading metal wire and gate line belong to the ground floor metal level, and data line belongs to the second layer metal layer; Perhaps data line belongs to the ground floor metal level, and the first spare repairing lead, the first shading metal wire and gate line belong to the second layer metal layer.
Under the situation that the first spare repairing lead and data line and the first shading metal wire all insulate, the cross-point of the first spare repairing lead and data line and the first shading metal wire is for repairing point.Wherein the first spare repairing lead and gate line belong to the ground floor metal level, and the first shading metal wire and data line belong to the second layer metal layer; Perhaps the first shading metal wire and data line belong to the ground floor metal level, and the first spare repairing lead and gate line belong to the second layer metal layer.
In the structure of above-mentioned planar display with data line capable of being repaired, more comprise the structure of the defective that can be used for the repairing gate line as described below.The second shading metal wire is set respectively between pixel electrode in each pixel region and the gate line, and each second shading metal wire is separated from each other.The second spare repairing lead is across second adjacent shading metal wire and the gate line, and each second shading metal wire distributes the second spare repairing lead of two correspondences at least, and the second spare repairing lead is selected an insulation with the gate line and the second shading metal wire at least.
At the configuration aspects of the defective that can be used for the repairing gate line, the second spare repairing lead is extensible all to insulate from gate line, the second shading metal wire or with both.
Extend under the situation of gate line at the second spare repairing lead, the cross-point of the second spare repairing lead and the second shading metal wire is for repairing point.
Extend under the situation of the second shading metal wire at the second spare repairing lead, the cross-point of the second spare repairing lead and gate line is for repairing point.
Under the situation that the second spare repairing lead and gate line and the second shading metal wire all insulate, the cross-point of the second spare repairing lead and gate line and the second shading metal wire is for repairing point.
When one of data line had defective, the first shading metal wire that will be close to was electrically connected with the data line with above-mentioned defective the first spare repairing lead by one of correspondence, wherein should lay respectively at the both sides of defective to the first spare repairing lead.
When one of gate line had defective, the second shading metal wire that will be close to was electrically connected with the gate line with above-mentioned defective the second spare repairing lead by one of correspondence, wherein should lay respectively at the both sides of defective to the second spare repairing lead.
Description of drawings
Fig. 1 shows the top view of the method that has the broken string of repairing data line now.
Fig. 2 shows that the present invention repairs the circuit diagram of data line method.
Fig. 3 is the top view of preparing structure that shows the present invention's first embodiment.
Fig. 4 A to Fig. 4 B shows the diagrammatic cross-section of repairing along the tangent line IV-IV of Fig. 3.
Fig. 5 is the top view of preparing structure that shows the present invention's second embodiment.
Fig. 6 A to Fig. 6 B shows the diagrammatic cross-section of repairing along the tangent line VI-VI of Fig. 5.
Fig. 7 is the top view of preparing structure that shows the present invention's the 3rd embodiment.
Fig. 8 A to Fig. 8 B shows the diagrammatic cross-section of repairing along the tangent line VIII-VIII of Fig. 7.
Fig. 9 is the top view of preparing structure that shows the present invention's the 4th embodiment.
Figure 10 A to Figure 10 B shows the diagrammatic cross-section of repairing along the tangent line X-X of Fig. 9.
Figure 11 is the top view of preparing structure that shows the present invention's the 5th embodiment.
Figure 12 A to Figure 12 B shows the diagrammatic cross-section of repairing along the tangent line XII-XII of Figure 11.
Figure 13 is the top view of preparing structure that shows the present invention's the 6th embodiment.
Figure 14 A to Figure 14 B shows the diagrammatic cross-section of repairing along the tangent line XIV-XIV of Figure 13.
Figure 15 is the top view of preparing structure that shows the present invention's the 7th embodiment.
Figure 16 shows the circuit diagram of repairing gate line method of the present invention.
The drawing reference numeral explanation
30: multiple substrate
34: thin film transistor (TFT)
36: pixel electrode
32,32a, 32b, 62: shading metal wire
38a, 38b, 38c, 68a, 68c: lead
38,68: spare repairing lead (or projection)
341: grid
342: drain electrode
343: source electrode
40: gate line
50: data line
42: insulation course
44: protective seam
46: the contact hole
Embodiment
The present invention before not assembling with another substrate as yet, promptly detects after preparing the active multiple substrate of display panels, confirms whether to have the existence of broken string.If find to have broken string, can utilize the shading metal wire of vicinity to repair at the broken string place.
The broken line repairing of data line
See also Fig. 2, it shows that the present invention repairs the circuit diagram of data line method.Include many gate lines G L on the multiple substrate 30 of display panels
1, GL
2And GL
3With data line DL
1, DL
2And DL
3Gate lines G L
1, GL
2And GL
3With data line DL
1, DL
2And DL
3Form with matrix is arranged, and the rectangular area that its square crossing constituted is defined as pixel region, and each pixel region all disposes a thin film transistor (TFT) (TFT) 34 and pixel electrode 36.At pixel electrode 36 edges and data line DL
1, DL
2And DL
3Between many shading metal wires 32 are set, these shading metal wires 32 main systems are in order to avoiding the generation of light leak problem, and each shading metal wire 32 is floating state (floatingstate).
After active multiple substrate 30 forms, will test, to find out the position of line defect.Afterwards, utilize the shading metal wire of floating 32 of vicinity to repair.
For example, as data line DL
2Broken string takes place and when forming opening between terminal A, B, transfer to data line DL
2Image signal just can't pass through terminal A, B.Method for repairing and mending of the present invention is, with the data line DL at terminal A and B place
2Be connected to the shading metal wire 32 of vicinity respectively by lead 38a and 38b.Therefore, path C → D → E → F promptly constitutes a patch cord, walks around the broken string place by this and repairs data line DL
2Terminal A, the line defect problem between B.
Below be to describe in detail with several embodiment to repair data line in the method for the broken string of terminal A and B, and the detailed structure of the patch cord that is constituted.
First embodiment
See also Fig. 3 and Fig. 4 A to Fig. 4 B, wherein Fig. 3 is the top view that shows the present invention's preparing structure, and Fig. 4 A to Fig. 4 B shows the diagrammatic cross-section of repairing along the tangent line IV-IV of Fig. 3, and wherein Fig. 4 A is the synoptic diagram before repairing, and Fig. 4 B is the synoptic diagram after repairing.
Shown in Fig. 3 and Fig. 4 A, the general manufacturing process of on substrate 30, being carried out, system is prior to forming the ground floor metal level on the substrate 30, and defines its pattern, with the grid 341 that forms gate line 40, TFT structure 34 and can be used to the shading metal wire 32 repaired.The position of shading metal wire 32 ties up under the considering who does not influence electrical performance, is arranged between data line 50 and the pixel electrode 36, in order to covering pixel electrode 36 light near the edge of data lines 50, and is in the state of floating.Then, on the substrate 30 that forms gate line 40, grid 341 and shading metal wire 32, form an insulation course 42, at least one semiconductor layer (not shown) and second layer metal layer in regular turn in regular turn.Afterwards, the pattern of definition second layer metal layer is to form drain electrode 342, source electrode 343, data line 50 and spare repairing lead 38.Because the spare repairing lead 38 at this embodiment is the protrusion part of data line 50, so the spare repairing lead is called projection 38 again at this.Then; form a protective seam 44 and a conductive layer in the drain electrode 302 that is formed by second metal level, source electrode 303, data line 40 with the top of projection 38; and the pattern of definition conductive layer is so just roughly finished the making of circuit on the substrate 30 to form pixel electrode 36.The above-mentioned the first metal layer and the second metal series of strata are made of common metal class electric conductor material, and can use tin indium oxide (indium tin oxide in order to the material of conductive layer of preparation pixel electrode 36; ITO).Pixel electrode 36 is electrically connected with drain electrode 342 via contact hole 46.
For convenience of explanation, in data line DL
2The shading metal linear system of broken string place vicinity represents that with 32a and 32b the projection system that will be used to repair represents with 38a and 38b.
In order to ensure the making quality of substrate 30, can judge whether that line defect takes place data line 50 somewhere by the illuminating state of observing pixel region 36.For instance, when finding data line DL
2In gate lines G L
2And GL
3Between when broken string takes place, just can carry out following method for repairing and mending.At first, in order to make data line DL
2Terminal A, the B at broken string place are electrically connected, and can select contiguous shading metal wire 32a or/and 32b repairs.In this embodiment, be to be that example describes to select shading metal wire 32a to repair.Then, carry out laser welding (laser fusing) to repairing some D and E, remove insulation course 42 partly, make the projection 38a and the 38b that are defined by the second layer metal layer to be electrically connected with the shading metal wire 32a that is defined by the ground floor metal level, the result is shown in Fig. 4 B.Therefore, data line DL
2Can walk around broken string terminal A and B, form the electrical connection loop, in order to as data line DL and diverted via by projection 38a, shading metal wire 32a and projection 38b conducting
2Patch cord.
In this embodiment, shading metal wire 32 prepares simultaneously with grid 341 and gate line 40, and all from the ground floor metal level; Spare repairing lead 38 prepares simultaneously with data line 50, and all from the second layer metal layer.The present invention extends spare repairing lead (being projection) 38 in data line 50, and utilize data line 50 that laser technology makes broken string extension via data line 50 itself, it is projection 38, metal shielding layer 32 conductings contiguous with its below, form the electrical connection loop to walk around the broken string place, with the patch cord of table as data line 50.
Second embodiment
See also Fig. 5 and Fig. 6 A to Fig. 6 B, wherein Fig. 5 is that top view, Fig. 6 A to Fig. 6 B that shows the present invention's preparing structure shows the diagrammatic cross-section of repairing along the tangent line VI-VI of Fig. 5, and wherein Fig. 6 A is the synoptic diagram before repairing, and Fig. 6 B is the synoptic diagram after repairing.
In this embodiment, the manufacturing process of multiple substrate 30 is roughly identical with first embodiment, and difference is in the position of spare repairing lead 38.At this, spare repairing lead 38 and shading metal wire 32 prepare simultaneously with grid 341 and gate line 40, and all from the ground floor metal level; Data line 50 is from the second layer metal layer.Spare repairing lead 38 at this embodiment is the protrusion part of shading metal wire 32, and therefore, the spare repairing lead also is called projection 38 at this.
Similarly, for convenience of explanation, in data line DL
2The shading metal linear system of broken string place vicinity represents that with 32a and 32b the projection system that will be used to repair represents with 38a and 38b.
After the preparation of finishing multiple substrate 30, can judge whether that line defect takes place data line 50 somewhere by the illuminating state of observing pixel region 36.For instance, when finding data line DL
2In gate lines G L
2And GL
3Between when broken string takes place, its method for repairing and mending is as described below.At first, in order to make data line DL
2Terminal A, the B at broken string place are electrically connected, and can select contiguous shading metal wire 32a or/and 32b repairs.In this embodiment, be to be that example describes to select shading metal wire 32a to repair.Then, carry out laser welding, remove insulation course 42 partly, the feasible data line DL that is defined by the second layer metal layer repairing some C and F
2Can be electrically connected with the projection 38a and the 38b that are defined by the ground floor metal level, the result is shown in Fig. 6 B.Therefore, data line DL
2Can walk around broken string terminal A and B, form the electrical connection loop, in order to as data line DL and diverted via by projection 38a, shading metal wire 32a and projection 38b conducting
2Patch cord.
The 3rd embodiment
See also Fig. 7 and Fig. 8 A to Fig. 8 B, wherein Fig. 7 is the top view that shows the present invention's preparing structure, Fig. 8 A to Fig. 8 B shows the diagrammatic cross-section of repairing along the tangent line VIII-VIII of Fig. 7, and wherein Fig. 8 A is the synoptic diagram before repairing, and Fig. 8 B is the synoptic diagram after repairing.
In this embodiment, the manufacturing process of multiple substrate 30 is roughly identical with first embodiment, and difference is in the position of spare repairing lead 38 and shading metal wire 32.At this, spare repairing lead 38 prepares simultaneously with grid 341 and gate line 40, and all from the ground floor metal level; Shading metal wire 32 prepares simultaneously with data line 50, and all from the second layer metal layer.Before not carrying out any repairing action, spare repairing lead 38 and shading metal wire 32 are floating state.
Similarly, for convenience of explanation, in data line DL
2The shading metal linear system of broken string place vicinity represents that with 32a and 32b the spare repairing lead system that will be used to repair represents with 38a and 38b.
After the preparation of finishing multiple substrate 30, can judge whether that line defect takes place data line 50 somewhere by the illuminating state of observing pixel region 36.For instance, when finding data line DL
2In gate lines G L
2And GL
3Between when broken string takes place, its method for repairing and mending is as described below.At first, in order to make data line DL
2Terminal A, the B at broken string place are electrically connected, and can select contiguous shading metal wire 32a or/and 32b repairs.In this embodiment, be to be that example describes to select shading metal wire 32a to repair.Then, carry out laser welding, remove insulation course 42 partly, the feasible data line DL that is defined by the second layer metal layer repairing some C, D, E and F
2Can be electrically connected with the spare repairing lead 38a and the 38b that are defined by the ground floor metal level, the result is shown in Fig. 8 B.Therefore, data line DL
2Can walk around broken string terminal A and B, form the electrical connection loop, in order to as data line DL and diverted via by lead 38a, shading metal wire 32a and lead 38b conducting
2Patch cord.
The 4th embodiment
See also Fig. 9 and Figure 10 A to Figure 10 B, wherein Fig. 9 is the top view that shows the present invention's preparing structure, Figure 10 A to Figure 10 B shows the diagrammatic cross-section of repairing along the tangent line X-X of Fig. 9, and wherein Figure 10 A is the synoptic diagram before repairing, and Figure 10 B is the synoptic diagram after repairing.
Shown in Fig. 9 and Figure 10 A, the general manufacturing process of on substrate 30, being carried out, system is prior to forming the ground floor metal level on the substrate 30, and defines its pattern, with drain electrode 342, the source electrode 343 of TFT structure 34, the data line 50 and spare repairing lead 38 that forms TFT structure 34.Then, on the substrate 30 that forms drain electrode 342, source electrode 343, data line 50 and spare repairing lead 38, form semi-conductor layer (not shown), an insulation course 42 and second layer metal layer at least in regular turn in regular turn.Afterwards, the pattern of definition second layer metal layer is with the grid 341 that forms gate line 40, TFT structure 34 and can be used to the shading metal wire 32 repaired.The position of shading metal wire 32 ties up under the considering who does not influence electrical performance, is arranged between data line 50 and the pixel electrode 36, in order to covering pixel electrode 36 light near the edge of data lines 50, and is in the state of floating.Because the spare repairing lead 38 at this embodiment is the protrusion part of data line 50, so the spare repairing lead is called projection 38 again at this.Then; form a protective seam 44 and a conductive layer in the top of the gate line 40 that is formed by second metal level, grid 341 and shading metal wire 32; and the pattern of definition conductive layer is so just roughly finished the making of circuit on the substrate 30 to form pixel electrode 36.The above-mentioned the first metal layer and the second metal series of strata are made of common metal class electric conductor material, and can use tin indium oxide (indium tin oxide in order to the material of conductive layer of preparation pixel electrode 36; ITO).Pixel electrode 36 is electrically connected with drain electrode 342 via contact hole 46.
For convenience of explanation, in data line DL
2The shading metal linear system of broken string place vicinity represents that with 32a and 32b the projection system that will be used to repair represents with 38a and 38b.
In order to ensure the making quality of substrate 30, can judge whether that line defect takes place data line 50 somewhere by the illuminating state of observing pixel region 36.For instance, when finding data line DL
2In gate lines G L
2And GL
3Between when broken string takes place, just can carry out following method for repairing and mending.At first, in order to make data line DL
2Terminal A, the B at broken string place are electrically connected, and can select contiguous shading metal wire 32a or/and 32b repairs.In this embodiment, be to be that example describes to select shading metal wire 32a to repair.Then, carry out laser welding (laser fusing) to repairing some D and E, remove insulation course 42 partly, make the shading metal wire 32a that is defined by the second layer metal layer to be electrically connected with the projection 38a and the 38b that are defined by the ground floor metal level, the result is shown in Figure 10 B.Therefore, data line DL
2Can walk around broken string terminal A and B, form the electrical connection loop, in order to as data line DL and diverted via by projection 38a, shading metal wire 32a and projection 38b conducting
2Patch cord.
In this embodiment, spare repairing lead 38 prepares simultaneously with data line 50, and all from the ground floor metal level; Shading metal wire 32 prepares simultaneously with grid 341 and gate line 40, and all from the second layer metal layer.The present invention extends spare repairing lead (being projection) 38 in data line 50, and utilize data line 50 that laser technology makes broken string extension via data line 50 itself, it is projection 38, metal shielding layer 32 conductings contiguous with its top, form the electrical connection loop to walk around the broken string place, be used as the patch cord of data line 50.
The 5th embodiment
See also Figure 11 and Figure 12 A to Figure 12 B, wherein Figure 11 is the top view that shows the present invention's preparing structure, Figure 12 A to Figure 12 B shows the diagrammatic cross-section of repairing along the tangent line XII-XII of Figure 11, and wherein Figure 12 A is the synoptic diagram before repairing, and Figure 12 B is the synoptic diagram after repairing.
In this embodiment, the manufacturing process of multiple substrate 30 is roughly identical with the 4th embodiment, and difference is in the position of spare repairing lead 38.At this, spare repairing lead 38 and shading metal wire 32 prepare simultaneously with grid 341 and gate line 40, and all from the second layer metal layer; Data line 50 is from the ground floor metal level.The spare repairing lead 38 of this embodiment for the protrusion of shading metal wire 32 partly, therefore, the spare repairing lead also is called projection 38 at this.
Similarly, for convenience of explanation, in data line DL
2The shading metal linear system of broken string place vicinity represents that with 32a and 32b the projection system that will be used to repair represents with 38a and 38b.
After the preparation of finishing multiple substrate 30, can judge whether that line defect takes place data line 50 somewhere by the illuminating state of observing pixel region 36.For instance, when finding data line DL
2In gate lines G L
2And GL
3Between when broken string takes place, its method for repairing and mending is as described below.At first, in order to make data line DL
2Terminal A, the B at broken string place are electrically connected, and can select contiguous shading metal wire 32a or/and 32b repairs.In this embodiment, be to be that example describes to select shading metal wire 32a to repair.Then, carry out laser welding, remove insulation course 42 partly repairing some C and F, make the projection 38a that defined by the second layer metal layer and 38b can with the data line DL that is defined by the ground floor metal level
2Be electrically connected, the result is shown in Figure 12 B.Therefore, data line DL
2Can walk around broken string terminal A and B, form the electrical connection loop, in order to as data line DL and diverted via by projection 38a, shading metal wire 32a and projection 38b conducting
2Patch cord.
The 6th embodiment
See also Figure 13 and Figure 14 A to Figure 14 B, wherein Figure 13 is the top view that shows the present invention's preparing structure, Figure 14 A to Figure 14 B shows the diagrammatic cross-section of repairing along the tangent line XIV-XIV of Figure 13, and wherein 13A figure is the synoptic diagram before repairing, and 13B figure is the synoptic diagram after repairing.
In this embodiment, the manufacturing process of multiple substrate 30 is roughly identical with the 4th embodiment, and difference is in the position of spare repairing lead 38 and shading metal wire 32.At this, spare repairing lead 38 prepares simultaneously with grid 341 and gate line 40, and all from the second layer metal layer; Shading metal wire 32 prepares simultaneously with data line 50, and all from the ground floor metal level.Before not carrying out any repairing action, spare repairing lead 38 and shading metal wire 32 are floating state.
Similarly, for convenience of explanation, in data line DL
2The shading metal linear system of broken string place vicinity represents that with 32a and 32b the spare repairing lead system that will be used to repair represents with 38a and 38b.
After the preparation of finishing multiple substrate 30, can judge whether that line defect takes place data line 50 somewhere by the illuminating state of observing pixel region 36.For instance, when finding data line DL
2In gate lines G L
2And GL
3Between when broken string takes place, its method for repairing and mending is as described below.At first, in order to make data line DL
2Terminal A, the B at broken string place are electrically connected, and can select contiguous shading metal wire 32a or/and 32b repairs.In this embodiment, be to be that example describes to select shading metal wire 32a to repair.Then, carry out laser welding, remove insulation course 42 partly repairing some C, a D, E and F, make the spare repairing lead 38a that defined by the second layer metal layer and 38b can with the data line DL that is defined by the ground floor metal level
2Be electrically connected, the result is shown in 13B figure.Therefore, data line DL
2Can walk around broken string terminal A and B, form the electrical connection loop, in order to as data line DL and diverted via by lead 38a, shading metal wire 32a and lead 38b conducting
2Patch cord.
The 7th embodiment
Among above-mentioned the first～six embodiment, each shading metal wire 32 all has two roughly corresponding to the spare repairing lead 38 of its end points, yet the present invention is not limited to this, and also configurable three even above spare repairing lead 38 are to increase the accommodation of repairing.
Figure 15 is to be example with three spare repairing leads 38 of each shading metal wire 32 configurations, and is that example is done explanation with the manufacture method of the described active multiple substrate 30 of first embodiment.At this, shading metal wire 32 prepares simultaneously with grid 341 and gate line 40, and all from the ground floor metal level; Spare repairing lead 38 prepares simultaneously with data line 50, and all from the second layer metal layer.
For convenience of explanation, in data line DL
2The shading metal linear system of broken string place vicinity represents with 32a and 32b, represents with 38a, 38b and 38c corresponding to the projection system of the shading metal wire 32a that will be used to repair.
After active multiple substrate 30 has been made, judged whether that by the illuminating state of observing pixel region 36 line defect takes place data line 50 somewhere.For instance, when finding data line DL
2In gate lines G L
2And GL
3Between when broken string takes place, can utilize its vicinity shading metal wire 32a or/and 32b repair.But,, then can't utilize whole piece shading metal wire 32a or/and 32b repairs if when two shading metal wire 32a of vicinity and 32b also break unfortunately.Defective situation with Figure 15 is an example, carries out laser welding to repairing some D and G, makes the projection 38a and the 38c that are defined by the second layer metal layer to be electrically connected with the shading metal wire 32a that is defined by the ground floor metal level.Therefore, data line DL
2Can walk around broken string terminal A and B, form the electrical connection loop, so path C → D → G → H is promptly in order to as data line DL and diverted via by projection 38a, shading metal wire 32a and projection 38c conducting
2Patch cord.
The broken line repairing of gate line
The broken line repairing method of above-mentioned data line is also applicable to gate line.See also Figure 16, it shows the circuit diagram of repairing gate line method of the present invention.As shown in figure 16, at pixel electrode 36 edges and gate lines G L
1, GL
2And GL
3Between many shading metal wires of floating 62 are set, in order to avoiding the generation of light leak problem, and as patch cord.
For example, as gate lines G L
2Broken string takes place and when forming opening between end points J, K, transfer to gate lines G L
2Image signal just can't pass through end points J, K.Method for repairing and mending of the present invention is, with the gate line DL at end points J and K place
2Be connected to the shading metal wire 62 of vicinity respectively by lead 68a and 68b.Therefore, path L → M → N → O promptly constitutes a patch cord, walks around the broken string place by this and comes repairing gate line GL
2End points J, K between the line defect problem.
Spare repairing lead 68a and 68b can be extension from gate lines G L
2Projection, extend from the projection of shading metal wire 62 or the lead that has independence of one's own and float.If spare repairing lead 68a and 68b are for extending from gate lines G L
2Projection, then repair point and be M and N; If spare repairing lead 68a and 68b for extending the projection from shading metal wire 62, then repair point and are L and O; If spare repairing lead 68a and the lead of 68b for having independence of one's own and floating are then repaired point and are M, N, L and O.
The present invention by be disposed at the other shading metal wire of floating of gate line and data line and across the spare repairing lead of gate line/shading metal wire and data line/shading metal wire as patch cord, if have the many places broken string in same data line and/or the gate line, all can select suitable shading metal wire and spare repairing lead nearby, cooperate lf, make data line and/or gate line walk around the broken string place.Therefore, patch cord can't be subject to the influence of space and area, does not also have the situation of extra increase resistance value and capacitance, and then can avoid increasing the RC time delay.
Though the present invention discloses as above in conjunction with the preferred embodiments; yet it is not in order to limit the present invention; those skilled in the art without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention should be looked the accompanying Claim person of defining and is as the criterion.
Claims (40)
1. planar display with data line capable of being repaired comprises:
Many gate lines and many data lines, those gate lines and define a plurality of pixel regions with those data lines that those gate lines intersect;
A plurality of pixel electrodes lay respectively in those pixel regions;
Many first shading metal wires be arranged at respectively between the pixel electrode and data line in each pixel region, and each first shading metal wire are separated from each other; And
Many first spare repairing leads, be across first adjacent shading metal wire and the data line, each first shading metal wire distributes the first spare repairing lead of two correspondences at least, and those first spare repairing leads are selected an insulation with those data lines and those first shading metal wires at least.
2. planar display with data line capable of being repaired as claimed in claim 1, wherein those first spare repairing lead systems extend from those data lines.
3. planar display with data line capable of being repaired as claimed in claim 2, wherein the cross-point of those first spare repairing leads and those first shading metal wires is for repairing point.
4. planar display with data line capable of being repaired as claimed in claim 2, wherein those first shading metal wires and those gate lines belong to the ground floor metal level, and those first spare repairing leads and those data lines belong to the second layer metal layer.
5. planar display with data line capable of being repaired as claimed in claim 2, wherein those first spare repairing leads and those data lines belong to the ground floor metal level, and those first shading metal wires and those gate lines belong to the second layer metal layer.
6. planar display with data line capable of being repaired as claimed in claim 1, wherein those first spare repairing lead systems extend from those first shading metal wires.
7. planar display with data line capable of being repaired as claimed in claim 6, wherein the cross-point of those first spare repairing leads and those data lines is for repairing point.
8. planar display with data line capable of being repaired as claimed in claim 6, wherein those first spare repairing leads, those first shading metal wires and those gate lines belong to the ground floor metal level, and those data lines belong to the second layer metal layer.
9. planar display with data line capable of being repaired as claimed in claim 6, wherein those data lines belong to the ground floor metal level, and those first spare repairing leads, those first shading metal wires and those gate lines belong to the second layer metal layer.
10. planar display with data line capable of being repaired as claimed in claim 1, wherein those first spare repairing leads and those data lines and the insulation of those first shading metal wires.
11. planar display with data line capable of being repaired as claimed in claim 10, wherein the cross-point of those first spare repairing leads and those data lines and those first shading metal wires is for repairing point.
12. planar display with data line capable of being repaired as claimed in claim 10, wherein those first spare repairing leads and those gate lines belong to the ground floor metal level, and those first shading metal wires and those data lines belong to the second layer metal layer.
13. planar display with data line capable of being repaired as claimed in claim 10, wherein those first shading metal wires and those data lines belong to the ground floor metal level, and those first spare repairing leads and those gate lines belong to the second layer metal layer.
14. planar display with data line capable of being repaired as claimed in claim 1 more comprises:
Many second shading metal wires are arranged at respectively between each pixel region interior pixel electrode and gate line, and each second shading metal wire is separated from each other; And
Many second spare repairing leads, be across second adjacent shading metal wire and the gate line, each second shading metal wire distributes the second spare repairing lead of two correspondences at least, and those second spare repairing leads are selected an insulation with those gate lines and those second shading metal wires at least.
15. planar display with data line capable of being repaired as claimed in claim 14, wherein those second spare repairing lead systems extend from those gate lines.
16. planar display with data line capable of being repaired as claimed in claim 15, wherein the cross-point of those second spare repairing leads and those second shading metal wires is for repairing point.
17. planar display with data line capable of being repaired as claimed in claim 14, wherein those second spare repairing lead systems extend from those second shading metal wires.
18. planar display with data line capable of being repaired as claimed in claim 17, wherein the cross-point of those second spare repairing leads and those gate lines is for repairing point.
19. planar display with data line capable of being repaired as claimed in claim 14, wherein those second spare repairing leads and those gate lines and the insulation of those second shading metal wires.
20. planar display with data line capable of being repaired as claimed in claim 19, wherein the cross-point of those second spare repairing leads and those gate lines and those second shading metal wires is for repairing point.
21. the method for repairing and mending of a planar display with data line capable of being repaired, wherein this planar display with data line capable of being repaired comprises: many gate lines and many data lines, those gate lines and define a plurality of pixel regions with those data linear systems that those gate lines intersect; A plurality of pixel electrodes lay respectively in those pixel regions; Many first shading metal wires are arranged at respectively between each pixel region interior pixel electrode and data line, and each first shading metal wire is separated from each other; And many first spare repairing leads, be across first adjacent shading metal wire and the data line, each first shading metal wire distributes the first spare repairing lead of two correspondences at least, those first spare repairing leads are selected an insulation with those data lines and those first shading metal wires at least, and this method for repairing and mending comprises:
When one of those data lines had a defective, the first shading metal wire that will be close to was electrically connected with the data line with this defective the first spare repairing lead by one of correspondence, wherein should lay respectively at the both sides of this defective to the first spare repairing lead.
22. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 21, wherein those first spare repairing lead systems extend from those data lines, and the cross-point of those first spare repairing leads and those first shading metal wires is for repairing point.
23. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 22, the first shading metal wire that wherein will be close to should comprise the first spare repairing lead and the method that the data line with this defective is electrically connected by correspondence: utilize lf that this is electrically connected with the first shading metal wire that interlocks the first spare repairing lead.
24. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 21, wherein those first spare repairing lead systems extend from those first shading metal wires, and the cross-point of those first spare repairing leads and those data lines is for repairing point.
25. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 24, the first shading metal wire that wherein will be close to should comprise the first spare repairing lead and the method that the data line with this defective is electrically connected by correspondence: utilize lf that this is electrically connected with staggered data line the first spare repairing lead.
26. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 21, wherein those first spare repairing leads and those data lines and the insulation of those first shading metal wires, the cross-point of those first spare repairing leads and those data lines and those first shading metal wires is for repairing point.
27. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 26, the first shading metal wire that wherein will be close to should comprise the first spare repairing lead and the method that the data line with this defective is electrically connected by correspondence: utilize lf that this is electrically connected with the staggered data line and the first shading metal wire the first spare repairing lead.
28. the method for repairing and mending of a planar display with data line capable of being repaired, wherein this planar display with data line capable of being repaired comprises: many gate lines and many data lines, those gate lines and define a plurality of pixel regions with those data linear systems that those gate lines intersect; A plurality of pixel electrodes lay respectively in those pixel regions; Many first shading metal wires are arranged at respectively between each pixel region interior pixel electrode and data line, and each first shading metal wire is separated from each other; Many first spare repairing leads, be across first adjacent shading metal wire and the data line, each first shading metal wire distributes the first spare repairing lead of two correspondences at least, and those first spare repairing leads are selected an insulation with those data lines and those first shading metal wires at least; Many second shading metal wires are arranged at respectively between each pixel region interior pixel electrode and gate line, and each second shading metal wire is separated from each other; And many second spare repairing leads, be across second adjacent shading metal wire and the gate line, each second shading metal wire distributes the second spare repairing lead of two correspondences at least, those second spare repairing leads are selected an insulation with those gate lines and those second shading metal wires at least, and this method for repairing and mending comprises:
When one of those data lines have one first defective, the first shading metal wire that will be close to is electrically connected with the data line with this first defective the first spare repairing lead by one of correspondence, wherein should lay respectively at the both sides of this first defective to the first spare repairing lead; And
When one of those gate lines have one second defective, the second shading metal wire that will be close to is electrically connected with the gate line with this second defective the second spare repairing lead by one of correspondence, wherein should lay respectively at the both sides of this second defective to the second spare repairing lead.
29. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 28, wherein those first spare repairing lead systems extend from those data lines, and the cross-point of those first spare repairing leads and those first shading metal wires is for repairing point.
30. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 29, the first shading metal wire that wherein will be close to should comprise the first spare repairing lead and the method that the data line with this first defective is electrically connected by correspondence: utilize lf that this is electrically connected with the first shading metal wire that interlocks the first spare repairing lead.
31. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 28, wherein those first spare repairing lead systems extend from those first shading metal wires, and the cross-point of those first spare repairing leads and those data lines is for repairing point.
32. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 31, the first shading metal wire that wherein will be close to should comprise the first spare repairing lead and the method that the data line with this first defective is electrically connected by correspondence: utilize lf that this is electrically connected with staggered data line the first spare repairing lead.
33. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 28, wherein those first spare repairing leads and those data lines and the insulation of those first shading metal wires, the cross-point of those first spare repairing leads and those data lines and those first shading metal wires is for repairing point.
34. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 33, the first shading metal wire that wherein will be close to should comprise the first spare repairing lead and the method that the data line with this first defective is electrically connected by correspondence: utilize lf that this is electrically connected with the staggered data line and the first shading metal wire the first spare repairing lead.
35. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 28, wherein those second spare repairing lead systems extend from those gate lines, and the cross-point of those second spare repairing leads and those second shading metal wires is for repairing point.
36. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 35, the second shading metal wire that wherein will be close to should comprise the second spare repairing lead and the method that the gate line with this second defective is electrically connected by correspondence: utilize lf that this is electrically connected with the second shading metal wire that interlocks the second spare repairing lead.
37. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 28, wherein those second spare repairing lead systems extend from those second shading metal wires, and the cross-point of those second spare repairing leads and those gate lines is for repairing point.
38. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 37, the second shading metal wire that wherein will be close to should comprise the second spare repairing lead and the method that the gate line with this second defective is electrically connected by correspondence: utilize lf that this is electrically connected with staggered gate line the second spare repairing lead.
39. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 28, wherein those second spare repairing leads and those gate lines and the insulation of those second shading metal wires, the cross-point of those second spare repairing leads and those gate lines and those second shading metal wires is for repairing point.
40. the method for repairing and mending of planar display with data line capable of being repaired as claimed in claim 39, the second shading metal wire that wherein will be close to should comprise the second spare repairing lead and the method that the gate line with this second defective is electrically connected by correspondence: utilize lf that this is electrically connected with the staggered gate line and the second shading metal wire the second spare repairing lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 03106898 CN1264135C (en) | 2003-03-07 | 2003-03-07 | Planar display with data line capable of being repaired and its repair method |
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| CN 03106898 CN1264135C (en) | 2003-03-07 | 2003-03-07 | Planar display with data line capable of being repaired and its repair method |
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| CN1527268A CN1527268A (en) | 2004-09-08 |
| CN1264135C true CN1264135C (en) | 2006-07-12 |
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| CN1527268A (en) | 2004-09-08 |
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