CN1527268A

CN1527268A - Flat panel display capable of repairing defects of data lines and repairing method thereof

Info

Publication number: CN1527268A
Application number: CNA031068987A
Authority: CN
Inventors: 李如龙; 林益祥
Original assignee: AU Optronics Corp
Current assignee: AUO Corp
Priority date: 2003-03-07
Filing date: 2003-03-07
Publication date: 2004-09-08
Anticipated expiration: 2023-03-07
Also published as: CN1264135C

Abstract

A flat panel display capable of repairing the defects of data lines is provided, wherein a shading metal line arranged beside the data lines and a repairing spare conducting wire crossing the data lines/the shading metal line are used as the repairing lines, if the same data line has a plurality of broken lines, the proper shading metal line and the repairing spare conducting wire can be selected nearby, and the data lines are enabled to bypass the broken lines by matching with laser melting. The flat panel display can be further provided with a shading metal wire beside the gate line and a repairing spare wire crossing the gate line/the shading metal wire, so that the broken part of the gate line can be repaired at the same time.

Description

Planar display with data line capable of being repaired and method for repairing and mending thereof

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 (flatpanel 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, be used as the patch cord of data line 50.

Second embodiment

See also Fig. 5 and Fig. 6 A to Fig. 6 B, wherein Fig. 5 is the top view that shows the present invention's preparing structure, and Fig. 6 A to Fig. 6 B 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.

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.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.

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.

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

1. A flat panel display capable of repairing defects of data lines, comprising:

A plurality of gate lines and a plurality of data lines, the gate signal lines and the data lines intersecting the gate lines define a plurality of pixel regions;

A plurality of pixel electrodes are respectively located in the pixel areas;

A plurality of first light-shielding metal lines are respectively arranged between the pixel electrode and the data line in each pixel area, and each first light-shielding metal line is separated from each other; and

A plurality of first repairing spare wires straddle adjacent first light-shielding metal lines and data lines, and each first light-shielding metal line is assigned at least two corresponding first repairing spare wires, and these first repairing spare wires are at least connected to One of the data lines and the first light-shielding metal lines is insulated.

2. The flat-panel display capable of repairing defects of data lines as claimed in claim 1, wherein the first repairing spare wires extend from the data lines.

3. The flat-panel display capable of repairing defects of data lines as claimed in claim 2, wherein the crossing points of the first repairing spare wires and the first light-shielding metal lines are repairing points.

4. The flat-panel display capable of repairing defects of data lines as claimed in claim 2, wherein the first light-shielding metal lines and the gate lines belong to the first metal layer, and the first repairing spare wires and the The data lines belong to the second metal layer.

5. The flat-panel display capable of repairing defects of data lines as claimed in claim 2, wherein the first repairing spare wires and the data lines belong to the first metal layer, and the first light-shielding metal lines and the grids The polar line belongs to the second metal layer.

6. The flat-panel display capable of repairing defects of data lines as claimed in claim 1, wherein the first repairing spare wires extend from the first light-shielding metal lines.

7. The flat-panel display capable of repairing defects of data lines as claimed in claim 6, wherein the crossing points of the first repairing spare wires and the data lines are repairing points.

8. The flat-panel display capable of repairing defects of data lines as claimed in claim 6, wherein the first repairing spare wires, the first light-shielding metal lines and the gate lines belong to the first metal layer, and the The data lines belong to the second metal layer.

9. The flat-panel display capable of repairing defects of data lines as claimed in claim 6, wherein the data lines belong to the first metal layer, the first repairing spare wires, the first light-shielding metal lines and the gates The polar line belongs to the second metal layer.

10. The flat-panel display capable of repairing defects of data lines as claimed in claim 1, wherein the first repairing spare wires are insulated from the data lines and the first light-shielding metal lines.

11. The flat-panel display capable of repairing defects of data lines as claimed in claim 10, wherein the crossing points of the first repairing spare wires, the data lines and the first light-shielding metal lines are repairing points.

12. The flat-panel display capable of repairing defects of data lines as claimed in claim 10, wherein the first repairing spare wires and the gate lines belong to the first metal layer, and the first light-shielding metal lines and the The data lines belong to the second metal layer.

13. The flat-panel display capable of repairing defects of data lines as claimed in claim 10, wherein the first light-shielding metal lines and the data lines belong to the first metal layer, and the first repairing spare wires and the gates The polar line belongs to the second metal layer.

14. The flat-panel display capable of repairing defects of data lines as claimed in claim 1, further comprising:

A plurality of second light-shielding metal lines are respectively arranged between the pixel electrode and the gate line in each pixel area, and each second light-shielding metal line is separated from each other; and

A plurality of second repairing spare wires, straddling the adjacent second light-shielding metal lines and gate lines, each second light-shielding metal line is assigned at least two corresponding second repairing spare wires, and these second repairing spare wires are at least It is insulated from one of the gate lines and the second light-shielding metal lines.

15. The flat-panel display capable of repairing defects of data lines as claimed in claim 14, wherein the second repairing spare wires extend from the gate lines.

16. The flat-panel display capable of repairing defects of data lines as claimed in claim 15, wherein the intersection points of the second repairing spare wires and the second light-shielding metal lines are repairing points.

17. The flat-panel display capable of repairing defects of data lines as claimed in claim 14, wherein the second repairing spare wires extend from the second light-shielding metal lines.

18. The flat-panel display capable of repairing defects of data lines as claimed in claim 17, wherein the crossing points of the second repairing spare wires and the gate lines are repairing points.

19. The flat-panel display capable of repairing defects of data lines as claimed in claim 14, wherein the second repairing spare wires are insulated from the gate lines and the second light-shielding metal lines.

20. The flat-panel display capable of repairing defects of data lines as claimed in claim 19, wherein the crossing points of the second repairing spare wires, the gate lines and the second light-shielding metal lines are repairing points.

21. A method for repairing a flat-panel display capable of repairing defects in data lines, wherein the flat-panel display capable of repairing defects in data lines comprises: a plurality of gate lines and a plurality of data lines, the gate signal lines and the The data lines intersected by the gate lines define a plurality of pixel regions; a plurality of pixel electrodes are respectively located in the pixel regions; a plurality of first light-shielding metal lines are respectively arranged on the pixel electrodes in each pixel region and the data lines, and each first light-shielding metal line is separated from each other; and a plurality of first repairing spare wires, spanning the adjacent first light-shielding metal lines and data lines, and each first light-shielding metal line is at least distributed Two corresponding first repairing spare wires, these first repairing spare wires are insulated from at least one of the data wires and the first light-shielding metal wires, the repairing method includes:

When one of the data lines has a defect, the adjacent first light-shielding metal line is electrically connected to the data line with the defect through a corresponding pair of first repairing spare wires, wherein the pair of first repairing spare wires are respectively on either side of the defect.

22. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 21, wherein the first repairing spare wires extend from the data lines, and the first repairing spare wires are connected to the first The intersection points of the light-shielding metal lines are the repair points.

23. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 22, wherein the adjacent first light-shielding metal lines are electrically connected to the data line having the defect through the corresponding pair of first repairing spare wires. The connection method includes: using laser melting to electrically connect the pair of first repairing spare wires with the first interlaced light-shielding metal wires.

24. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 21, wherein the first repairing spare wires extend from the first light-shielding metal wires, and the first repairing spare wires are connected to the first repairing spare wires The intersection points of these data lines are repair points.

25. The method for repairing a flat-panel display capable of repairing a defect of a data line as claimed in claim 24, wherein the adjacent first light-shielding metal line is electrically connected to the data line having the defect via the corresponding pair of first repairing spare wires. The connection method includes: using laser fusion to electrically connect the pair of first repairing spare wires to the crossed data wires.

26. The method for repairing flat-panel displays capable of repairing defects of data lines as claimed in claim 21, wherein the first repairing spare wires are insulated from the data lines and the first light-shielding metal wires, and the first repairing The intersecting points of the backup wires and the data lines and the first light-shielding metal lines are repair points.

27. The method for repairing a flat-panel display capable of repairing a defect of a data line as claimed in claim 26, wherein the adjacent first light-shielding metal line is electrically connected to the data line having the defect through the corresponding pair of first repairing spare wires. The connection method includes: using laser melting to electrically connect the pair of first repairing spare wires with the interlaced data wires and the first light-shielding metal wire.

28. A method for repairing a flat-panel display capable of repairing defects in data lines, wherein the flat-panel display capable of repairing defects in data lines comprises: a plurality of gate lines and a plurality of data lines, the gate signal lines and the The data lines intersected by the gate lines define a plurality of pixel regions; a plurality of pixel electrodes are respectively located in the pixel regions; a plurality of first light-shielding metal lines are respectively arranged on the pixel electrodes in each pixel region and the data line, and each first light-shielding metal line is separated from each other; a plurality of first repairing spare wires span the adjacent first light-shielding metal line and data line, and each first light-shielding metal line is allocated at least two Corresponding to the first repairing backup wires, the first repairing backup wires are insulated from at least one of the data lines and the first light-shielding metal lines; a plurality of second light-shielding metal lines are respectively arranged in each pixel area between the pixel electrode and the gate line, and each second light-shielding metal line is separated from each other; The metal lines are assigned at least two corresponding second repairing spare wires, and the second repairing spare wires are insulated from at least one of the grid lines and the second light-shielding metal wires. The repairing method includes:

When one of the data lines has a first defect, the adjacent first light-shielding metal line is electrically connected to the data line with the first defect through a corresponding pair of first repairing spare wires, wherein the pair of first Repair spare wires are located on both sides of the first defect; and

When one of the gate lines has a second defect, the adjacent second light-shielding metal line is electrically connected to the gate line with the second defect through a corresponding pair of second repairing spare wires, wherein the pair The second spare wires for repairing are respectively located on both sides of the second defect.

29. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 28, wherein the first repairing spare wires extend from the data lines, and the first repairing spare wires are connected to the first The intersection points of the light-shielding metal lines are the repair points.

30. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 29, wherein the adjacent first light-shielding metal lines are passed through the corresponding pair of first repairing spare wires and the data having the first defect. The wire electrical connection method includes: using laser melting to electrically connect the pair of first repairing spare wires to the first interlaced light-shielding metal wires.

31. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 28, wherein the first repairing spare wires extend from the first light-shielding metal wires, and the first repairing spare wires are connected to the first repairing spare wires The intersection points of these data lines are repair points.

32. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 31, wherein the adjacent first light-shielding metal lines are passed through the corresponding pair of first repairing spare wires and the data having the first defect. The method for wire electrical connection includes: using laser fusion to electrically connect the pair of first repairing spare wires to the crossed data wires.

33. The repairing method of the flat-panel display capable of repairing the defects of the data lines as claimed in claim 28, wherein the first repairing spare wires are insulated from the data lines and the first light-shielding metal wires, and the first repairing The intersecting points of the backup wires and the data lines and the first light-shielding metal lines are repair points.

34. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 33, wherein the adjacent first light-shielding metal lines are passed through the corresponding pair of first repairing spare wires and the data having the first defect. The method for wire electrical connection includes: using laser melting to electrically connect the pair of first repairing spare wires with the interlaced data wires and the first light-shielding metal wire.

35. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 28, wherein the second repairing spare wires extend from the gate lines, and the second repairing spare wires are connected to the first The intersection point of the two light-shielding metal lines is the repair point.

36. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 35, wherein the adjacent second light-shielding metal lines are passed through the corresponding pair of second repairing spare wires and the grid having the second defect. The method for electrically connecting polar wires includes: using laser melting to electrically connect the pair of second repairing spare wires to the second interlaced light-shielding metal wires.

37. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 28, wherein the second repairing spare wires extend from the second light-shielding metal wires, and the second repairing spare wires are connected to the The intersecting points of the gate lines are repairing points.

38. The method for repairing a flat-panel display capable of repairing defects in data lines as claimed in claim 37, wherein the adjacent second light-shielding metal lines are passed through the corresponding pair of second repairing spare wires and the grid having the second defect. The method for electrically connecting pole lines includes: using laser melting to electrically connect the pair of second repairing spare wires to the crossed gate lines.

39. The method for repairing a flat-panel display capable of repairing defects of data lines as claimed in claim 28, wherein the second repairing spare wires are insulated from the gate lines and the second light-shielding metal lines, and the second The intersecting points of the spare wires for repairing and the grid lines and the second light-shielding metal lines are repairing points.

40. The method for repairing a flat-panel display capable of repairing defects in data lines as claimed in claim 39, wherein the adjacent second light-shielding metal lines are passed through the corresponding pair of second repairing spare wires and the grid having the second defect. The method for electrically connecting pole lines includes: using laser melting to electrically connect the pair of second repairing spare wires to the interlaced gate lines and second light-shielding metal lines.