TWI409535B - A liquid crystal display panel and the rescue circuit therein - Google Patents

Abstract

The present invention provides a liquid crystal display panel rescue circuit, comprising: a rescue line for data line, a rescue line for scan line, a surrounding line, a connection line, a first conductive layer, a second conductive layer and a weld conductive layer. The rescue line for data line and the rescue line for scan line are respectively floating and insulated across one respective end of data line and scan line. The surrounding line surrounds the liquid crystal display panel, which is floating and insulated across the other end of data line and scan line, and partly overlaps with and electrically insulates the rescue line for scan line. One end of connection line partly overlaps with and electrically insulates the rescue line for data line, and the other end is electrically connected to the first conductive layer. The weld conductive layer is located at the other end of surrounding line, as well as partly overlaps with and electrically insulates the first conductive layer and the second conductive layer.

Description

Liquid crystal display panel and repair circuit thereof

The present invention relates to a liquid crystal display panel, and more particularly to a liquid crystal display panel having a data line repair line and a scan line repair line and a repair circuit therefor.

With the development of semiconductor device and display manufacturing technology, liquid crystal display panels with superior image quality, low power consumption, and low radiation have gradually become the mainstream of the market. Typically, the liquid crystal display panel includes an array substrate, a color filter substrate, and a liquid crystal layer between the array substrate and the color filter substrate. Generally, a color filter substrate is referred to as an upper glass substrate, and an array substrate is referred to as a lower glass substrate.

On the lower glass substrate, a plurality of scanning lines, a plurality of data lines, and a plurality of pixel circuits are formed. Wherein, each pixel circuit is defined at an intersection of a scan line and a corresponding data line, each pixel receives a scan signal through a corresponding scan line, and receives a pixel voltage through a corresponding data line, so as to be based on these The scan line, the data line, and the pixel circuit form a display area on the lower glass substrate. In addition, a plurality of repair lines may be disposed on the lower glass substrate, and a part of the repair lines are formed on the lower glass substrate, and another portion is overlapped with the data lines, that is, the repair lines and the data lines are partially interlaced And electrically insulated from each other. When the data line breaks due to defects, the laser is used to weld the interlaced overlap between the repair line and the data line (also known as Laser Welding) to form an electrical connection. In this sense, the repair line can be used as an alternative line for a certain defect data line, and the rejection signal rate is greatly reduced by changing the control signal from the repair line to the corresponding pixel to display the image normally.

However, in current liquid crystal display panels, the repair circuit is mostly designed to only target data line defects on the lower glass substrate, and does not repair defects on the scan line. Therefore, when one or more defective scan lines cannot receive the scan signal normally, the repair circuit also appears to be powerless.

In view of the above technical defects existing in the repair circuit of the liquid crystal display panel in the prior art, the present invention provides a liquid crystal display panel having a data line repair line and a scan line repair line and a repair circuit thereof.

According to an embodiment of the invention, a liquid crystal display panel repair circuit is provided. The repairing circuit includes at least: a data line repairing line, a scanning line repairing line, a surrounding line, a connecting line, a first conductive layer, a second conductive layer and a welded conductive layer. The data line repair line floats across one end of the data line, and the scan line repair line floats across one end of the scan line. The surrounding line surrounds the liquid crystal display panel and is floatingly insulated across the other end of the scan line and the data line, and the surrounding line portion is overlapped with the scan line repair line and electrically insulated. One end of the connecting line is partially overlapped and electrically insulated from the data line repairing line, and the other end of the connecting line is electrically coupled to the first conductive layer. More specifically, the other end of the connecting line is first electrically connected to the input end of the operational amplifier. And then electrically connected to the first conductive layer through the output of the operational amplifier. In addition, the fused conductive layer is located at the other end of the surrounding line and partially overlaps and is electrically insulated from the first conductive layer and the second conductive layer.

Preferably, the connection line and the first conductive layer further comprise a first potential amplifier. The input end of the first potential amplifier is electrically connected to the other end of the connection line, and the output end of the first potential amplifier is electrically connected to the first conductive layer.

Preferably, the surrounding line and the second conductive layer further comprise a second potential amplifier. The input end of the second potential amplifier is electrically connected to the second conductive layer, and the output end of the second potential amplifier is electrically connected to one end of the surrounding line.

Preferably, the repairing circuit further comprises an insulating layer located above or below the other end of the surrounding line, the first conductive layer and the second conductive layer. Accordingly, the fused conductive layer is located above or below the insulating layer.

According to still another embodiment of the present invention, a repaired liquid crystal display panel is provided. The liquid crystal display panel comprises: a data line repair line, a scan line repair line, a first conductive layer, a surrounding line, a second conductive layer, a fused conductive layer and an insulating layer. The data line repair line is disposed across one end of the plurality of data lines and is electrically connected only to one of the plurality of data lines. The scan line repair line is floating across the end of the scan line. The surrounding line surrounds the liquid crystal display panel and is electrically connected to the other end of the data line electrically connected to the data line repairing line, and the surrounding line and the scanning line repairing line are partially overlapped and electrically insulated. The first conductive layer is electrically connected to the data line repairing line, and the second conductive layer is electrically connected to one end of the surrounding line. The fused conductive layer partially overlaps the other end of the surrounding line, the first conductive layer and the second conductive layer, and is electrically connected to the other end of the surrounding line and the first conductive layer. Further, the insulating layer is located between the other end of the surrounding line, the first conductive layer and the second conductive layer, and the welded conductive layer.

Preferably, one of the data lines is a defective data line. According to an embodiment, the first pre-patching point is laser-fused to electrically connect the data line repair line with the defective data line. The laser fuses the second pre-patching point to electrically connect the surrounding line to the other end of the defective data line. The third pre-patching point of the laser fusion is electrically connected to the other end of the fused conductive layer and the surrounding line, and the fourth pre-patching point of the laser splicing is electrically connected to the fused conductive layer and the first conductive layer.

Preferably, the liquid crystal display panel further comprises a connecting wire for electrically connecting the first conductive layer and the data line repairing line. In addition, a fifth pre-fixation point is further included, and the fifth pre-patching point of the laser welding is electrically connected to the data line repairing line and the connecting line.

Preferably, the first conductive layer and the data line repairing line further comprise a potential amplifier. The input end of the potential amplifier is electrically connected to the data line repairing line, and the output end of the potential amplifier is electrically connected to the first conductive layer.

According to still another embodiment of the present invention, a repaired liquid crystal display panel is provided. The liquid crystal display panel comprises: a scan line repair line, a data line repair line, a connection line, a surrounding line, a first conductive layer, a second conductive layer, a fused conductive layer and an insulating layer. The scan line repair line is disposed across one end of the plurality of scan lines and is electrically connected only to one of the plurality of scan lines. The data line repair line is floating and insulated across one end of the data line. The surrounding line surrounds the liquid crystal display panel, and is electrically connected to the other end of the scan line electrically connected to the scan line repair line, and is electrically connected to the scan line repair line. One end of the connecting line overlaps with the data line repairing line and is electrically insulated, and the other end of the connecting line is electrically connected to the first conductive layer. The second conductive layer is electrically connected to one end of the surrounding line, and the welded conductive layer partially overlaps the other end of the surrounding line, the first conductive layer and the second conductive layer, and is electrically connected to the other end of the surrounding line and the second conductive Floor. The insulating layer is located between the other end of the surrounding line, the first conductive layer, the second conductive layer, and the solder conductive layer.

Preferably, one of the plurality of scan lines is a scan line having defects. According to an embodiment, the first pre-patching point is laser-fused to electrically connect the scan line repair line with the defective scan line. The laser fuses the second pre-patching point to electrically connect the surrounding line to the other end of the defective scan line. The laser welds the third pre-patching point to electrically connect the surrounding line and the scan line repair line. The laser is connected to the fourth pre-fixing point to electrically connect the other end of the conductive layer and the surrounding line, and the laser is welded to the fifth pre-fixing point to electrically connect the conductive layer and the second conductive layer.

Preferably, a potential amplifier is further included between the surrounding line and the second conductive layer.

Specific embodiments of the present invention will be further described in detail below with reference to the drawings. Throughout the description, the same reference numerals denote the same components. It should be understood that in the drawings of the present application, "solid line" and "dotted line" for electrically connecting one element to another element are merely for convenience of describing a specific embodiment of the present invention and cannot be induced. Those skilled in the art will understand that solid lines indicate electrical connections and dashed lines indicate electrical isolation. It should also be understood that in the following description, "first", "second", and "third" are merely used to facilitate the description of specific embodiments of the present invention and to distinguish the functions of the same type of elements, and are not intended to be Make some kind of constraint or qualification.

FIG. 1 is a schematic diagram showing the principle of a repair circuit for repairing a data line of a liquid crystal display panel in the prior art. In FIG. 1 , the repair circuit of the liquid crystal display panel includes at least: a surrounding line 100 , a plurality of data lines 102 , a plurality of scanning lines 104 , a data line open 106 , and a plurality of data line repair lines 108 . , amplifier 110 and pre-patching point 112. It should be noted that the pre-fixing point 112 is located in a partially overlapping area of any one of the plurality of data lines 102 on the liquid crystal display panel and the surrounding line 100. In general, the pre-fixed point 112 is located in a partially overlapping area of the two, but the data line 102 is electrically insulated from the surrounding line 100, only if any of the data lines 102 are fused, such as when the laser is fused to the pre-repair point 112. The surrounding line 100 is electrically connected.

The surrounding line 100 surrounds the liquid crystal display panel, and the floating insulation spans one end of the plurality of data lines 102. The surrounding line 100 partially overlaps and is electrically insulated from the data line repairing line 108. In addition, the data line repair line 108 is floating across the other end of the corresponding data line 102. When an electrical fault occurs in a certain data line of the plurality of data lines 102, the partial overlap area 114 of the data line repair line 108 is welded and the data line repair line 108 is replaced by the defect data line to receive the display. The pixel voltage of the cell and display the image. When the data line having the breakpoint 106 is repaired by the data line repair line 108, the flow direction of the repair circuit can be represented by an arrow according to FIG. 1 : one end of the data line having the break point 106 is first electrically connected to the data through the connection point 116. The wire repairing line 108 is then electrically connected to the surrounding line 100 through the partial overlapping area 114 of the surrounding line 100 and the data line repairing line 108. The electrical connection can be performed by laser welding. . The surround line may further include an amplifier 110 such that when the signal is transmitted to the other end of the data line having the breakpoint 106 via the data line repair line 108 and the surround line 100, the signal is not excessively attenuated. Finally, the surrounding line 100 is electrically connected to the other end of the data line having the break point 106 through the laser-prefixed pre-patching point 112 to implement the data line repair function.

As can be seen from the above description, when a defective data line appears in the liquid crystal display panel of the prior art, normal image display can be realized through the surrounding line and the data line repairing line surrounding the outer edge of the panel. However, the repair circuit of the display panel only solves the problem of signal transmission when the data line is electrically faulty, but does not involve the repair of the defective scan line. In this way, if the liquid crystal display panel is electrically disconnected by transmitting a scanning signal to the thin film transistor passing through the scanning line, the repair circuit on the board cannot be solved.

In order to solve the technical defects occurring in the liquid crystal display panel as shown in FIG. 1, FIG. 2 is a schematic structural view of a liquid crystal display panel having a data line repair line and a scan line repair line according to an embodiment of the present invention. The repair circuit on the liquid crystal display panel of FIG. 2 can not only repair the data lines on the glass substrate, but also repair the scan lines on the glass substrate.

In more detail, the repair circuit of the liquid crystal display panel in FIG. 2 includes at least a surrounding line 200, a plurality of data lines 202, a plurality of scan lines 204, a plurality of data line repair lines 206, a connection line 208, and an operational amplifier 210. The switching element 212 and the plurality of scan line repair lines 214.

The surrounding wire 200 surrounds the liquid crystal display panel, and the floating insulation spans one end of the plurality of data lines 202, and a portion of the surrounding wire 200 partially overlaps and is electrically insulated from the plurality of scanning line repairing lines 214. In addition, one end of the connecting line 208 is partially overlapped and electrically insulated from the data line repairing line 206 , and the other end of the connecting line 208 is electrically connected to the switching element 212 .

It should be noted that, in FIG. 2, the scan line repair line 214 is floatingly insulated across one end of the plurality of scan lines 204, and the data line repair line 206 is floating to insulate one end of the plurality of data lines 202, and surrounds a portion of the line 200. The scan line repair line 214 is partially overlapped and electrically insulated, and one end of the connection line 208 is partially overlapped and electrically insulated from the data line repair line 206. When the liquid crystal display panel requires repairing one or more data lines through the repair circuit, laser welding may be used to weld the overlapping area of the data line repair line 206 and the defective data line 202 and the connection line 208 and the data line repair line 206. The overlapping regions, and then the electrical switching on the switching element 212, form an electrical path between the surrounding line 200 and the data line repair line 206; similarly, when the liquid crystal display panel requires repairing one or more scans through the repair circuit In the case of the line 204, laser welding may be used to weld the overlap area of the scan line repair line 214 and the defective scan line 204 and the overlap area of the surround line 200 and the scan line repair line 214, and then use the electrical switching on the switching element 212. An electrical path is formed between the surrounding line 200 and the scan line repair line 214.

In FIG. 2, the amplifier 210 includes a first amplifier and a second amplifier, wherein the first amplifier is used to electrically connect the switching element 212 and the connection line 208, and the second amplifier is used to electrically connect the surrounding line 200 and the switching element 212. . When the repair circuit performs a repair operation to eliminate electrical defects on the data line, the connection line 208 is electrically coupled to the positive input of the first amplifier (indicated by the symbol "+"), and the output of the first amplifier (with the symbol " - "indicating" is electrically connected to the surrounding line 200 through the switching element 212; likewise, when the repairing circuit performs a repairing operation to eliminate electrical defects on the scanning line, one end of the surrounding line 200 is electrically connected to the second amplifier through the switching element 212 The positive input terminal (indicated by the symbol "+"), and the output of the second amplifier (indicated by the symbol "-") is electrically connected to the other end of the surround line 200.

As can be seen from the above, the switching element 212 in Fig. 2 is one of the important elements for repairing a scanning line or a data line. That is to say, the switching component can electrically connect the surrounding line and the scanning line repairing line, or electrically connect the surrounding line and the data line repairing line. In order to more clearly describe the internal structure of the switching element, FIG. 3 is a schematic diagram showing the positional relationship between the first conductive layer, the second conductive layer, and the welded conductive layer in the switching element of FIG.

In FIG. 3, the switching element 212 includes at least a fused conductive layer 30, an intermediate insulating layer 32, a metal layer 34 electrically connected to one end of the surrounding line, a first conductive layer 36, and a second conductive layer 38. The first conductive layer 36 is electrically connected to one end of the connecting line, and the second conductive layer 38 is electrically connected to the other end of the surrounding line. In one embodiment, the first potential amplifier is further included between the connection line and the first conductive layer 36, wherein the positive input end of the first potential amplifier is electrically connected to one end of the connection line, and the output end of the first potential amplifier is electrically connected. The first conductive layer 36 is connected. In one embodiment, the second potential amplifier is further included between the surrounding line and the second conductive layer 38, wherein the positive input terminal of the second potential amplifier is electrically connected to the second conductive layer 38, and the output end of the second potential amplifier is electrically connected. The other end of this surround line. It will be understood by those skilled in the art that the first potential amplifier and the second potential amplifier may adopt a circuit design of a single operational amplifier or a circuit design of a dual operational amplifier. For example, when the scan voltage on the scan line is different from the pixel voltage reference on the data line, the first and second potential amplifiers in the switching element are designed with a dual operational amplifier. For example, when using a single op amp design, the op amp's supply voltage must be greater than the maximum of the scan voltage and pixel voltage.

It should also be understood by those skilled in the art that the intermediate insulating layer 32 is located between the fused conductive layer 30 and the first conductive layer 36 or the second conductive layer 38. Therefore, the insulating layer 32 may be located at the first conductive layer 36 or the second conductive layer. Above or below layer 38, correspondingly, the fused conductive layer 30 should be above or below insulating layer 32.

In FIG. 3, pre-fixed points 300 and 302 are both located in a partially overlapping region of the fused conductive layer 30 and the metal layer 34 electrically connected to one end of the surrounding line, and the pre-patching point 304 is located at the fused conductive layer 30 and the second conductive layer 38. The partially overlapped regions, and the pre-fixed dots 306 are located in a partially overlapping region of the fused conductive layer 30 and the first conductive layer 36. It is not difficult to see that the laser welding pre-fixing point 300 or 302 can electrically connect the metal layer 34 and the fusion conductive layer 30, and the laser welding pre-fixing point 304 can electrically connect the fusion conductive layer 30 and the second conductive layer 38, and the lightning The shot fusion pre-fixation point 306 can electrically connect the fusion conductive layer 30 and the first conductive layer 36. Moreover, when the laser pre-fixes the points 300 and 304, the repair circuit of the liquid crystal display panel is used to repair an electrical fault on the scan line. When the laser welds the pre-patching points 302 and 306, the repair circuit of the liquid crystal display panel is used to repair electrical faults on the data line. It should also be understood by those skilled in the art that when the laser pre-fixes the points 302 and 306, one end of the surrounding line electrically connected to the metal layer 34 is electrically connected to the data line repairing line. The shots are pre-patched to points 300 and 304. This is because the fused conductive layer 30 can only be electrically connected to the data line repair line or the scan line repair line at the same time. In order to separately explain the circuit flow of the repair circuit in the liquid crystal display panel to perform data line repair and scan line repair, FIG. 4 is a schematic diagram showing the loop path of the repair circuit on the liquid crystal display panel in FIG. 2 for repairing the data line. FIG. 5 is a schematic diagram showing the circuit of the repair circuit on the liquid crystal display panel in FIG. 2 for repairing the scan line. In Figures 4 and 5, the arrows schematically indicate the course of the circuit loop.

It should be noted that the repair circuits in Figs. 4 and 5 only schematically illustrate the circuit principle for repairing data lines and scan lines in accordance with an embodiment of the present invention, but the object of the present invention is not limited thereto. In FIG. 4, the repair circuit includes at least a wraparound line 400, a data line breakpoint 402, a plurality of data line repair lines 404, a connection line 406, a switching element 408, a potential amplifier 410, and a potential amplifier 412. In an embodiment, the switching element 408 corresponds to the switching element 212 in FIG. 2, and its internal structure corresponds to the positional relationship between the metal layer 34, the first conductive layer 36 and the second conductive layer 38 in FIG. .

When an electrical fault occurs in one of the plurality of data lines, first, the laser is welded to the pre-repairing point 414 to electrically connect the data line repairing line 404 and one end of the defective data line, and then the laser is welded to The pre-patching point 416 electrically connects the surrounding line 400 to the other end of the defective data line. At the same time, the laser is welded to the pre-patching point 418 to electrically connect the data line repair line 404 and the connection line 406. Finally, in the switching element 408, the laser is fused to the pre-repairing point 420 to electrically connect the fused conductive layer 30 and the first conductive layer 36, and the laser is fused to the pre-repairing point 422 to electrically connect the fused conductive layer 30 and the metal. Layer 34. According to an embodiment of the invention, the pre-patching point 420 corresponds to the pre-patching point 306 in FIG. 3, and the pre-patch point 422 corresponds to the pre-patching point 302 in FIG. It is worth mentioning that the method of electrically connecting the two line segments or the two conductive layers at each pre-repair point is laser welding, but is not limited thereto. After the above operations are performed, the circuit circuit of the repair data line can be expressed as one end of the defective data line is electrically connected to the switching element 408 through the data line repairing line 404 and the connecting line 406, and is electrically connected to the surrounding line 400 via the switching element 408. Finally, the pre-fixed point 416 after the laser welding is electrically connected to the other end of the defect data line. In an embodiment of the invention, the potential amplifier 410 is disposed between the switching element 408 and the data line repairing line 404, and the input end thereof is electrically connected to the data line repairing line 404, and the output end thereof is electrically connected to the switching element. 408.

After understanding the repair circuit for repairing the data line in FIG. 4, the repair circuit for repairing the scan line will become easy. In FIG. 5, the repair circuit includes at least a wraparound line 500, a scan line breakpoint 502, a plurality of scan line repair lines 504, a switching element 506, a potential amplifier 508, and a potential amplifier 510. In an embodiment, the switching element 506 corresponds to the switching element 212 in FIG. 2 and the switching element 408 in FIG. 4, and its internal structure corresponds to the metal layer 34, the first conductive layer 36 and the third in FIG. The positional relationship between the two conductive layers 38.

When an electrical fault occurs in one of the plurality of scan lines, first, the laser is soldered to the pre-fixed point 512 to electrically connect the scan line repair line 504 and one end of the defect scan line, and then the laser is welded to The pre-patching point 514 electrically connects the surrounding line 500 to the other end of the defective scan line. At the same time, the laser is fused to the pre-repair point 516 to electrically connect the scan line repair line 504 and the surround line 500. Finally, in the switching element 506, the laser is fused to the pre-repairing point 518 to electrically connect the fused conductive layer 30 and the metal layer 34, and the laser is fused to the pre-repairing point 520 to electrically connect the fused conductive layer 30 and the second conductive Layer 38. According to an embodiment of the invention, the pre-patching point 518 corresponds to the pre-patching point 300 in FIG. 3, and the pre-patch point 520 corresponds to the pre-patching point 304 in FIG. After the above operations are performed, the circuit circuit of the repair scan line can be expressed as one end of the defective scan line is electrically connected to the switching element 506 through the scan line repair line 504 and the surround line 500, and is electrically connected to the surround line 500 via the switching element 506. The other end is finally electrically connected to the other end of the defective scan line through the laser-welded pre-fixed point 514. It is worth mentioning that the method of electrically connecting the two line segments or the two conductive layers in each pre-repairing point may be laser welding, but not limited thereto. In an embodiment of the invention, the potential amplifier 510 is disposed between the switching element 506 and the surrounding line 500, the input end of which is electrically connected to the switching element 506, and the output end of which is electrically connected to the other end of the surrounding line 500. .

By adopting the repair circuit of the liquid crystal display panel of the invention, not only the repairability of the electrical fault on the defective data line can be realized, but also the repairability of the electrical fault on the defective scan line can be realized, thereby reducing the scrap rate of the product. In addition, when repairing data lines or scan lines, the patching circuit uses a switching element to achieve a two-way function of a single trace.

100. . . Surround line

102. . . Data line

104. . . Scanning line

106. . . Scan line breakpoint

108. . . Scanning line repair line

400. . . Surround line

402. . . Data line breakpoint

404. . . Data line repair line

406. . . Cable

408. . . Switching element

110. . . Operational Amplifier

112. . . Pre-patching point

114. . . Partially overlapping area

116. . . Junction

200. . . Surround line

202. . . Data line

204. . . Scanning line

206. . . Data line repair line

208. . . Cable

210. . . Operational Amplifier

212. . . Switching element

214. . . Scanning line repair line

30. . . Fusion conductive layer

32. . . Intermediate insulation

34. . . Metal layer

36. . . First conductive layer

38. . . Second conductive layer

300. . . Pre-patching point

302. . . Pre-patching point

304. . . Pre-patching point

306. . . Pre-patching point

410. . . Potential amplifier

412. . . Potential amplifier

414. . . Pre-patching point

416. . . Pre-patching point

418. . . Pre-patching point

420. . . Pre-patching point

422. . . Pre-patching point

500. . . Surround line

502. . . Scan line breakpoint

504. . . Scanning line repair line

506. . . Switching element

508. . . Potential amplifier

510. . . Potential amplifier

512. . . Pre-patching point

514. . . Pre-patching point

516. . . Pre-patching point

518. . . Pre-patching point

520. . . Pre-patching point

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

1 is a schematic diagram showing the principle of a repair circuit for repairing a data line of a liquid crystal display panel in the prior art;

2 is a schematic structural view of a liquid crystal display panel having a data line repair line and a scan line repair line according to an aspect of the present invention;

3 is a schematic view showing a positional relationship between a first conductive layer, a second conductive layer, and a welded conductive layer in the switching device of FIG. 2;

FIG. 4 is a schematic diagram showing the loop path of the repair circuit on the liquid crystal display panel in FIG. 2 for repairing the data line;

FIG. 5 is a schematic diagram showing the circuit of the repair circuit on the liquid crystal display panel in FIG. 2 for repairing the scan line.

200. . . Surround line

202. . . Data line

204. . . Scanning line

206. . . Data line repair line

208. . . Cable

210. . . Operational Amplifier

212. . . Switching element

214. . . Scanning line repair line

Claims (19)

A liquid crystal display panel repairing circuit comprises: a data line repairing line, one end of the floating insulation across the data line; a scanning line repairing line, the floating insulation spanning one end of the scanning line; and a surrounding line surrounding the liquid crystal display panel and floating The insulation is disposed across the scan lines and the other ends of the data lines, and the surround lines are partially overlapped and electrically insulated from the scan line repair lines; and one of the connection lines has one end overlapping the data line repair line And electrically insulated; a first conductive layer electrically connected to the other end of the connecting line; a second conductive layer electrically connected to one end of the surrounding line; and a fused conductive layer at the other end of the surrounding line And electrically overlapping with the first conductive layer and the second conductive layer; a first potential amplifier electrically connected between the connection line and the first conductive layer; and a second potential amplifier, electrical Connected between the surrounding line and the second conductive layer. The liquid crystal display panel repairing circuit of claim 1, wherein the input end of the first potential amplifier is electrically connected to the other end of the connecting line, and the output end of the first potential amplifier is electrically connected to the first conductive layer . Liquid crystal display panel repairing according to item 1 of the claim And an input end of the second potential amplifier is electrically connected to the second conductive layer, and an output end of the second potential amplifier is electrically connected to one end of the surrounding line. The liquid crystal display panel repairing circuit of claim 1, further comprising an insulating layer on the other end of the surrounding line, above or below the first conductive layer and the second conductive layer. The liquid crystal display panel repairing circuit of claim 4, wherein the fused conductive layer is located above or below the insulating layer. A repaired liquid crystal display panel comprising: a data line repairing line, disposed across one end of the plurality of data lines and electrically connected only to one of the data lines; a scan line repairing line, floating insulation across the scanning line One end; a first conductive layer electrically connected to the data line repairing line; a surrounding line electrically surrounding the liquid crystal display panel and electrically connected to the other end of the data line electrically connected to the data line repairing line, and the surrounding line And partially overlapping and electrically insulated from the scan line repair line; a second conductive layer electrically connected to one end of the surround line; a solder conductive layer partially overlapping the other end of the surround line, the first conductive layer And the second conductive layer is electrically connected to the other end of the surrounding line and the first conductive layer; an insulating layer is located at the other end of the surrounding line, the first conductive a layer, the second conductive layer and the solder conductive layer; and a potential amplifier electrically connected between the first conductive layer and the data line repair line. The repaired liquid crystal display panel of claim 6, wherein one of the data lines is a defective data line. The repaired liquid crystal display panel of claim 7, wherein the first pre-patching point of the laser fusion is electrically connected to the data line repairing line and the defective data line. The repaired liquid crystal display panel of claim 8, wherein the laser welding the second pre-patching point electrically connects the surrounding line and the other end of the defective data line. The repaired liquid crystal display panel of claim 9, wherein the laser welding the third pre-patching point electrically connects the fusion conductive layer and the other end of the surrounding line, and the laser welding fourth pre-fixing point The fused conductive layer and the first conductive layer are electrically connected. The repaired liquid crystal display panel of claim 10, further comprising a connecting wire for electrically connecting the first conductive layer and the data line repairing line. The repaired liquid crystal display panel of claim 11, further comprising a fifth pre-patching point, the laser welding the fifth pre-fixing point to electrically connect the data line repairing line and the connecting line. The repaired liquid crystal display panel of claim 6, wherein the input end of the potential amplifier is electrically connected to the data line repairing line, and the output end of the potential amplifier is electrically connected to the first conductive layer. A repaired liquid crystal display panel comprising: a scan line repair line disposed across one end of the plurality of scan lines and electrically connected only to one of the scan lines; a data line repair line, floating insulation across the data line One end; a connecting line, one end of which overlaps with the data line repairing line and is electrically insulated; a first conductive layer is electrically connected to the other end of the connecting line; a surrounding line surrounds the liquid crystal display panel and is repaired with the scanning line The other end of the scan line is electrically connected to the scan line and electrically connected to the scan line; a second conductive layer is electrically connected to one end of the surround line; and a soldered conductive layer is partially overlapped The other end of the surrounding line, the first conductive layer and the second conductive layer are electrically connected to the other end of the surrounding line and the second conductive layer; an insulating layer is located at the other end of the surrounding line, the first a conductive layer, the second conductive layer, and the fused conductive layer; A potential amplifier is electrically connected between the surrounding line and the second conductive layer. The repaired liquid crystal display panel of claim 14, wherein one of the scan lines is a defective scan line. The repaired liquid crystal display panel of claim 15, wherein the first pre-patching point of the laser fusion is electrically connected to the scan line repair line and the defective scan line. The repaired liquid crystal display panel of claim 16, wherein the laser welding the second pre-patching point electrically connects the surrounding line to the other end of the defective scanning line. The repaired liquid crystal display panel of claim 17, wherein the laser welding the third pre-patching point electrically connects the surrounding line and the scanning line repairing line. The repaired liquid crystal display panel of claim 18, wherein the laser welding fourth pre-patching point electrically connects the fusion conductive layer and the other end of the surrounding line, and the laser welding is the fifth pre-fixing point. The fused conductive layer and the second conductive layer are electrically connected.