CN109801936B

CN109801936B - Display panel and repairing method thereof

Info

Publication number: CN109801936B
Application number: CN201711142302.2A
Authority: CN
Inventors: 廖冠咏; 李允立; 李玉柱; 吴志凌; 林京亮; 蔡百扬
Original assignee: British Cayman Islands Shangnachuang Technology Co ltd
Current assignee: British Cayman Islands Shangnachuang Technology Co ltd
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2021-01-26
Anticipated expiration: 2037-11-17
Also published as: CN109801936A

Abstract

The invention discloses a display panel, which is provided with a plurality of light-emitting diodes and a circuit substrate. The circuit substrate is provided with a plurality of first conducting wires, a plurality of second conducting wires and a plurality of conducting lines. One of the conductive lines is used for electrically connecting one of the light emitting diodes. Each conductive connection circuit is provided with a first connection pad part, a second connection pad part, a third connection pad part and a connection part. The first pad portion is used for electrically connecting one of the first electrode and the first wire of the corresponding light emitting diode. A first gap is formed between the second pad part and the first pad part. The second pad parts are used for electrically connecting the second electrodes of the corresponding light-emitting diodes. The third pad portion is electrically connected to one of the second wires. A second gap is formed between the third pad part and the second pad part. The connecting part connects the second pad part and the third pad part.

Description

Display panel and repairing method thereof

Technical Field

The present invention relates to a display panel and a repairing method thereof, and more particularly, to a display panel with led connecting lines and a repairing method thereof.

Background

Light emitting diodes have high energy conversion efficiency, small size and long service life, and are widely used in various electronic products, such as indication, illumination or display devices to provide images. Briefly, a light emitting diode having a light emitting layer and at least two semiconductor layers can be manufactured by manufacturers by adjusting the materials used for the light emitting layer and the semiconductor layers. Due to various advantages, manufacturers are working on applying leds to display panels to provide high image quality and reduce manufacturing cost.

Generally, the diode device has a positive electrode and a negative electrode, and when the light emitting diode is to be disposed in a pixel unit of the display panel, the two electrodes of the diode device need to be disposed on the corresponding pads, respectively. However, the manufacturing process is not perfect, and thus when the diode device is disposed on the display panel, the two electrodes of the diode device and the bonding pad may not be electrically connected smoothly due to misalignment, resulting in an open-circuit defect state. In this case, even if power is supplied to the display panel, the pixel cell having the open defect state cannot be lit. On the other hand, when the diode element is disposed on the display panel, the structure of the diode element may be melted or deformed due to improper force application or improper heating, and the diode element may become a good conductor, resulting in a short-circuit defect state. Alternatively, a single electrode of the diode element contacts the pads with two polarities, which may cause a short-circuit defect state. In the short defect condition, when power is supplied to the display panel, other pixel units are abnormally lighted.

In the current industry development, the miniaturization of light emitting diodes is expected to be the next generation of semiconductor technology. With current technology, the size of light emitting diodes has been miniaturized to the micrometer scale. However, as the size of the led tends to be smaller, the influence of the variation in the epitaxial quality on different leds is greater. In some display panel processes, a same epitaxial wafer is processed into a micro light emitting diode, and then transferred (mass transfer) to a substrate with a driving circuit. During the bulk transfer process, there is also an opportunity for the open defect state or the short defect state as described above.

Disclosure of Invention

The present invention provides a display panel and a repairing method thereof, so that when the display panel has the open circuit defect state or the short circuit defect state, the display panel can be repaired, and the display panel can normally emit light.

The invention discloses a display panel, which is provided with a plurality of light-emitting diodes and a circuit substrate. The circuit substrate is provided with a plurality of first conducting wires, a plurality of second conducting wires and a plurality of conducting lines. The light emitting diodes are separated from each other and are bonded on the circuit substrate. One of the conductive lines is used for electrically connecting one of the light emitting diodes. Each conductive connection circuit is provided with a first connection pad part, a second connection pad part, a third connection pad part and a connection part. The first pad portion is electrically connected to one of the first wires, and the first pad portion is used for electrically connecting to a first electrode of a corresponding light emitting diode. The second pad portion is spaced from the first pad portion by a first gap, and the second pad portion is electrically connected to the second electrode of the corresponding light emitting diode. The third pad portion is electrically connected to one of the second wires. A second gap is formed between the third pad part and the second pad part. The second pad part is positioned between the first pad part and the third pad part. The connecting part connects the second pad part and the third pad part.

In one embodiment, the circuit substrate further has a plurality of sub-pixel regions. One of the conducting lines is positioned in one of the sub-pixel areas. And one of the conductive lines further has a fourth pad portion and a fifth pad portion. The fourth pad portion is electrically connected to the first wire connected to the first pad portion. The first pad part and the fourth pad part are respectively positioned at two sides of the first wire connected with the first pad part. The fifth pad portion is electrically connected to the second wire connected to the third pad portion. A fifth gap is formed between the fourth pad part and the fifth pad part. The fourth pad part is positioned between the fifth pad part and the first pad part.

The invention discloses a method for repairing a display panel, which is suitable for the display panel. The display panel is provided with a circuit substrate and a plurality of light emitting diodes. The circuit substrate is provided with a plurality of conducting lines. One of the conductive lines is electrically connected to one of the light emitting diodes. Each conductive connection line comprises a first connection pad part, a second connection pad part, a third connection pad part and a connecting part for connecting the second connection pad part and the third connection pad part, wherein the first connection pad part, the second connection pad part and the third connection pad part are separated from each other. The first pad portion is electrically connected to one of the first wires. The third pad portion is electrically connected to one of the second wires. Two electrodes of the corresponding light emitting diode are respectively connected to the first pad part and the second pad part. In the repairing method of the display panel, a test signal is provided to at least one of the conducting lines and drives the corresponding light emitting diode to work. Then, whether one of the LEDs is in a normal state, an open-circuit defect state or a short-circuit defect state is detected. When the LED of one of the conductive lines is judged to be in an open-circuit defect state, the spare LED is connected to the first pad part and the second pad part to be electrically connected with the conductive line. When the light emitting diode of one of the conductive connection lines is judged to be in a short-circuit defect state, the connecting part of the conductive connection line is cut to electrically isolate the second pad part from the third pad part. And electrically connecting the other spare light emitting diode to the second pad part and the third pad part of the conductive connection circuit.

The invention discloses another display panel repairing method which is suitable for a display panel. The display panel is provided with a circuit substrate and a plurality of light emitting diodes. The circuit substrate is provided with a plurality of conducting lines. One of the conductive lines is electrically connected to one of the light emitting diodes, the first lead and the second lead. Each conductive connection circuit is provided with a first connection pad part, a second connection pad part, a third connection pad part, a fourth connection pad part, a fifth connection pad part and a connection part. The first pad portion and the fourth pad portion are electrically connected to the first wire and located at two sides of the first wire, respectively, and the third pad portion and the fifth pad portion are electrically connected to the second wire and located at two sides of the first wire, respectively. The two ends of the connecting part are respectively connected with the second pad connecting part and the third pad connecting part. The corresponding light emitting diodes are jointed on the first pad parts and the second pad parts. In the repairing method of the display panel, a test signal is provided to at least one of the conducting lines and drives the corresponding light emitting diode to work. And, detecting whether one of the light emitting diodes is in a normal state, an open defect state or a short defect state. When one of the LEDs is judged to be in an open-circuit defect state, the spare LEDs are connected to the fourth pad part and the fifth pad part. When one of the LEDs is judged to be in a short-circuit defect state, the other spare LED is connected to the fourth pad part and the fifth pad part.

The invention discloses another display panel which is provided with a plurality of light-emitting diodes and a circuit substrate. The light emitting diodes are separated from each other and are bonded on the circuit substrate. The circuit substrate is provided with a plurality of first conducting wires, a plurality of second conducting wires and a plurality of conducting lines. Each conducting circuit is used for electrically connecting one of the light emitting diodes. Each conductive connection line has a connection portion, a first connection pad portion, a spare connection pad portion and a second connection pad portion. One end of the connecting part is electrically connected with one of the first conducting wires. The first pad part is electrically connected with the other end of the connecting part. The first pad part is electrically connected with the first electrode of the corresponding light emitting diode. The spare pad portion is electrically connected with the first lead electrically connected with the connecting portion. The spare pad part and the first pad part are respectively positioned at two ends of the connecting part. The second pad portion is electrically connected to one of the second wires. The second pad part is electrically connected with the second electrode of the corresponding light emitting diode.

The invention discloses a method for repairing a display panel, which is suitable for the display panel. The display panel is provided with a circuit substrate and a plurality of light emitting diodes. The circuit substrate includes a plurality of sub-pixel regions. Each sub-pixel region is provided with a conducting connection line. The connecting line is provided with a first connecting pad part, a second connecting pad part, a spare connecting pad part and a connecting part which are arranged in a separated mode. The two ends of the connecting part are respectively connected with the first pad part and the standby pad part. The first pad portion and the spare pad portion are electrically connected to one of the first wires. The second pad portion is electrically connected to one of the second wires. In the repairing method of the display panel, a test signal is provided to at least one of the conducting lines and drives the corresponding light emitting diode to work. And, detecting whether one of the light emitting diodes is in a normal state, an open defect state or a short defect state. When one of the LEDs is judged to be in an open-circuit defect state, the spare LEDs are correspondingly connected to the spare pad parts and the second pad parts. When one of the light emitting diodes is judged to be in a short-circuit defect state, the connecting part of the conducting circuit corresponding to the light emitting diode is disconnected, so that the first connecting pad part is electrically insulated from the first lead wire, and the spare light emitting diode is correspondingly connected to the spare connecting pad part and the second connecting pad part.

In summary, the present invention provides a display panel and a repairing method thereof, wherein a conductive circuit of the display panel is used to electrically connect a main led element, and when there is an abnormal condition, a spare led is disposed at a corresponding position according to the condition. Therefore, the display panel and the repair method thereof provided by the embodiment can effectively repair the open-circuit defect condition and the short-circuit defect condition, and equivalently improve the yield of production lines.

The foregoing summary of the invention, as well as the following detailed description of the embodiments, is provided to illustrate and explain the principles and spirit of the invention, and to provide further explanation of the invention as claimed.

Drawings

Fig. 1A is a schematic structural diagram of a display panel according to an embodiment of the invention.

Fig. 1B is a schematic structural diagram of a circuit substrate of a display panel according to an embodiment of the invention.

Fig. 2A is a schematic structural diagram of a conducting line of a display panel according to a first embodiment of the invention.

Fig. 2B is a schematic structural diagram of a repaired conductive line of a display panel according to a first embodiment of the invention.

Fig. 2C is a schematic structural diagram of another repaired conductive line of the display panel according to the first embodiment of the invention.

Fig. 3 is a flowchart illustrating a repairing method of a display panel according to an embodiment of the invention.

Fig. 4A is a schematic structural diagram of a conducting line of a display panel according to a second embodiment of the invention.

Fig. 4B is a schematic structural diagram of a repaired conductive line of a display panel according to a second embodiment of the invention.

Fig. 4C is a schematic structural diagram of another repaired conductive line of the display panel according to the second embodiment of the invention.

Fig. 5 is a schematic structural diagram of a conducting line of a display panel according to a third embodiment of the invention.

Fig. 6 is a flowchart illustrating a repairing method of a display panel according to another embodiment of the invention.

Fig. 7A is a schematic structural diagram of a conducting line of a display panel according to a fourth embodiment of the invention.

Fig. 7B is a schematic structural diagram of a repaired conductive line of a display panel according to a fourth embodiment of the invention.

Fig. 7C is a schematic structural diagram of another repaired conductive line of the display panel according to the fourth embodiment of the invention.

Fig. 8A is a schematic structural diagram of a conductive trace of a display panel according to a fifth embodiment of the invention.

Fig. 8B is a schematic structural diagram of a repaired conductive line of a display panel according to a fifth embodiment of the invention.

Fig. 8C is a schematic structural diagram of another repaired conductive line of the display panel according to the fifth embodiment of the invention.

Fig. 9 is a flowchart illustrating a repairing method of a display panel according to another embodiment of the invention.

Wherein, the reference numbers:

1 display panel

10. 20, 30, 40, 50 conducting line

110. 210, 310, 410, 510 first pad portions

120. 220, 320, 420, 520 second pad parts

130. 230, 430, 530 third pad parts

240. 440, 540 fourth pad part

250. 450, 550 fifth pad parts

370. 470 connecting part

330 spare pad part

160. 260 connecting part

1610. 2610 section to be cut

2110. 2210, 2220, 2310, 2410, 2510 connection pad section

2120. 2230, 2420 connecting segment

280. 290 connecting part

5110. 5410 contact pad segment

5120. 5420 connecting segment

D light emitting diode

Db 1-Db 8 spare light-emitting diode

g1, g3 first gap

g2, g4 second gap

g5 fifth gap

S circuit board

S1 first side edge

S2 second side edge

S3 third side edge

S4 fourth side

S5 fifth side

S6 sixth side edge

S7 seventh side

S8 eighth side

S9 ninth side

Tenth side of S10

S11 eleventh side edge

w1, w3, w5 and w7 first conductors

w2, w4, w6 and w8 second conducting wires

wt1, wt2 Width

wtC width to be cut

ZM Primary land

ZP sub-pixel area

ZS1 first secondary zone of engagement

ZS2 second secondary zone of engagement

ZS3, ZS4, ZS5 and ZS6 secondary splicing zone

S101-S107, S201-S207, S301-S307 steps

Detailed Description

The detailed features and advantages of the present invention are described in detail in the following embodiments, which are sufficient for a person skilled in the art to understand the technical contents of the present invention and to implement the present invention, and the related objects and advantages of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification, claims and drawings. The following examples further illustrate aspects of the present invention in detail, but are not intended to limit the scope of the present invention in any way.

Referring to fig. 1A and 1B, fig. 1A is a schematic structural diagram of a display panel according to an embodiment of the invention, and fig. 1B is a schematic structural diagram of a circuit substrate of the display panel according to the embodiment of the invention. It should be noted that, for simplicity and clarity, only some of the components of the display panel are described below, and the total number of the components or the relative positions of all the components of the display panel are not limited thereby.

As shown in fig. 1A, the display panel 1 has a plurality of light emitting diodes D and a circuit substrate S. The size and the manufacturing process of the light emitting diode D are not limited herein. In an embodiment, the light emitting diode D is a micro light emitting diode (micro LED), but not limited thereto. The light emitting diodes D are spaced apart from each other and bonded to the circuit substrate S. In one embodiment, a portion of the leds D is used to provide red light, another portion of the leds D is used to provide blue light, and another portion of the leds D is used to provide green light. In another embodiment, a portion of the leds D are configured to provide red light, another portion of the leds D are configured to provide blue light, another portion of the leds D are configured to provide green light, and another portion of the leds D are configured to provide white light.

As shown in fig. 1B, the circuit substrate S has a plurality of first conductive lines w1, a plurality of second conductive lines w2 and a plurality of conductive traces (shown in the following drawings). In fig. 1B, the longitudinal wires are defined as first wires w1, and the transverse wires are defined as second wires w 2. In practice, the circuit substrate S defines a plurality of sub-pixel regions ZP. The light emitting diodes D are respectively and correspondingly arranged in the sub-pixel areas to form a plurality of sub-pixel units with corresponding circuits. One of the sub-pixel units is electrically connected to one of the first wires w1 and one of the second wires w 2. The first conductive wire w1 and the second conductive wire w2 are made of metal, Indium Tin Oxide (ITO), Indium Gallium Zinc Oxide (IGZO), or Indium Tin Zinc Oxide (ITZO), for example. The first conductive line w1 and the second conductive line w2 are electrically insulated from each other and do not contact each other. In practice, the first conductive line w1 and the second conductive line w2 are routed on different layers of the display panel 1, or an insulating layer is disposed between the overlapping portions of the first conductive line w1 and the second conductive line w2 to prevent the first conductive line w1 and the second conductive line w2 from contacting each other. The above description is exemplary only, and not intended to be limiting.

In an embodiment, the plurality of conductive traces are respectively disposed in the plurality of sub-pixel regions of the circuit substrate S, each of the conductive traces is electrically connected to one of the corresponding first wires w1 and one of the corresponding second wires w2, and each of the conductive traces is used for electrically connecting one of the plurality of light emitting diodes D. In other words, each led D is electrically connected to the corresponding first conductive line w1 and the corresponding second conductive line w2, or even the corresponding pixel circuit, respectively through each conductive connection. It should be noted that in the view of fig. 1B, the sub-pixel region ZP is located in the closed polygonal space surrounded by the two first wires w1 and the two second wires w2, but in practice, the sub-pixel region may also cross over the first wires w1 or the second wires w2 and is not located in the closed polygonal space. The present invention provides a plurality of different display panels, and the conducting lines of the different display panels have different structures, which are illustrated below.

Fig. 2A is a schematic view of a conducting circuit of a display panel according to a first embodiment of the present invention, and fig. 2A is a schematic view of the conducting circuit. Fig. 2A illustrates a conductive line in the sub-pixel region ZP. As shown in fig. 2A, the conductive trace 10 includes a first pad 110, a second pad 120, a third pad 130 and a connecting portion 160. The first pad portion 110 is electrically connected to one of the first wires w 1. In this embodiment, the first pad portion 110 is electrically connected to the corresponding first conductive line w1 through the through hole V. The third pad portion 130 is electrically connected to one of the second wires w 2. It should be noted that in the drawing relation of fig. 1B, the elements in the sub-pixel area ZP are connected to the first conducting line w1 at the left side of the sub-pixel area ZP and the second conducting line w2 above the sub-pixel area ZP, and in the drawing relation of fig. 2A, the elements in the sub-pixel area ZP are connected to the first conducting line w1 at the left side of the sub-pixel area ZP and the second conducting line w2 below the sub-pixel area ZP. It is understood by those skilled in the art that the elements in the sub-pixel region ZP only need to be connected to one of the first wires w1 and one of the second wires w2, and their relative orientations can be arranged according to actual needs and are not limited to a certain relative position.

The first pad portions 110 are used to electrically connect the first electrodes of the corresponding light emitting diodes D. The second pad receiving portion 120 is spaced apart from the first pad receiving portion 110 by a first gap g 1. In practice, the gap width of the first gap g1 is not greater than the distance between two electrodes of the led D. The second pad portions 120 are used for electrically connecting the second electrodes of the corresponding light emitting diodes D. The third pad receiving portion 130 is separated from the second pad receiving portion 120 by a second gap g 2. The second pad parts 120 are located between the first pad parts 110 and the third pad parts 130. The connection portion 160 connects the second pad portion 120 and the third pad portion 130. In this embodiment, the conductive traces 10 and the second conductive traces w2 are formed by the same mask or the same etching process, for example.

In more detail, the sub-pixel region ZP further defines a primary bonding region ZM, a first secondary bonding region ZS1 and a second secondary bonding region ZS 2. The main junction region ZM refers to a region where the light emitting diode D is joined to the first and

second pad portions

110 and 120. The primary zone ZM and the first secondary zone ZS1 do not overlap. Portions of the first pad portions 110 and portions of the second pad portions 120 are encompassed within the primary land zone ZM; alternatively, portions of the first pad portions 110 and portions of the second pad portions 120 are located at the primary engagement zone ZM. Another portion of the first pad portion 110 and another portion of the second pad portion 120 are covered in the first secondary junction ZS 1; alternatively, another portion of the first pad portion 110 and another portion of the second pad portion 120 are located at the first secondary junction ZS 1. The second sub-junction ZS2 covers part of the second pad portion 120 and the third pad portion 130. The led D corresponding to the conductive trace 10 is electrically connected to the first pad portion 110 and the second pad portion 120 in the main junction region ZM by the first electrode and the second electrode, respectively.

On the other hand, the connection part 160 has a to-be-cut section 1610, and the to-be-cut section 1610 has a to-be-cut width wt 1. The width wt1 to be cut is less than the width wt2 of the second pad parts 120, and the width wt1 to be cut is less than the width wt3 of the third pad parts 130. Please refer to the following description for details.

In practice, the circuit substrate S is fabricated first in the manufacturing process. At this time, the conductive lines in each sub-pixel region of the circuit substrate S have the structure shown in fig. 2A, for example. Then, the light emitting diodes D are bonded to the main bonding region ZM on the circuit substrate S to form a preliminary product of the display panel. However, during the bonding process, there is a possibility that a short defect state or an open defect state may be formed. With the defect structure, the preliminary product of the display panel can be repaired by a corresponding repairing method to overcome the short-circuit defect state or the open-circuit defect state. The manner of repair when the primary land ZM has an open defect state and the manner of repair when the primary land ZM has a short defect state will be described separately later.

Referring to fig. 2B, it is illustrated how to overcome the open defect state in the embodiment shown in fig. 2A when the sub-pixel region ZP has an open defect, and fig. 2B is a schematic structural diagram of a repaired bonding wire of the display panel according to the first embodiment of the present invention. In the sub-pixel region ZP, the open defect state refers to that the first pad portion 110 and the second pad portion 120 are still electrically insulated or isolated after the light emitting diode D is disposed in the sub-pixel region ZP. That is, even if power is supplied to the display panel 1, the light emitting diodes D disposed in the sub-pixel regions ZP cannot emit light. At this time, the spare light emitting diode Db1 is disposed in the first sub junction zone ZS 1. If the two electrodes of the spare led Db1 are properly connected to the first pad part 110 and the second pad part 120 of the first sub-junction ZS1, the open defect state of the sub-pixel ZP can be overcome, and the sub-pixel ZP can normally emit light.

Referring to fig. 2C, it is illustrated how the short defect state is overcome in the embodiment shown in fig. 2A when the sub-pixel region ZP has a short defect, and fig. 2C is a schematic structural diagram of another repaired conductive connection circuit of the display panel according to the first embodiment of the present invention. In the sub-pixel region ZP, in a broad sense, the short defect state means that the first pad portion 110 and the second pad portion 120 are electrically connected to each other even though the light emitting diode D is not turned on after the light emitting diode D is disposed in the sub-pixel region ZP. That is, when power is supplied to the display panel 1, the first pad part 110 and the second pad part 120 form a short circuit, so that the light emitting diode D disposed in the sub-pixel region cannot be normally turned on. As shown in fig. 2C, a second sub bonding zone ZS2 is defined in the sub pixel zone ZP. The portions of the second pad portions 120 and the portions of the third pad portions 130 are located at the second sub-junction ZS2, or the portions of the second pad portions 120 and the portions of the third pad portions 130 are covered at the second sub-junction ZS 2. As described above, when the short defect state exists in the sub-pixel region ZP, the spare light emitting diode Db2 is disposed in the second sub-bonding region ZS 2. In addition, the to-be-cut section 1610 of the connection part 160 is broken. When the two electrodes of the spare led Db1 are properly connected to the second pad portion 120 and the third pad portion 130 of the second sub-bonding zone ZS2 and the connection portion 160 is successfully disconnected, the short-circuit defect of the sub-pixel zone ZP can be overcome, and the sub-pixel zone ZP can recover to emit light normally.

In practice, the connection portion 160 may be burned off by laser or may be cut by chemical etching, mechanical method, etc., without limitation. As described above, the width wt1 to be cut of the section 1610 to be cut is less than the width wt2 of the second pad parts 120, and the width wt1 to be cut is less than the width wt3 of the third pad parts 130. That is, the width wt1 to be cut is relatively narrow, making the section 1610 to be cut easier to cut. In this embodiment. Each portion of the connecting portion 160 has substantially the same width, and thus, each portion of the connecting portion 160 can be used as a segment 1610 to be cut. In other words, in this embodiment, the to-be-cut segment 1610 is not limited to the position shown in fig. 2C, i.e., the connecting portion 160 in this embodiment can be disconnected at any position.

On the other hand, as shown in the drawings, the second pad portion 120 has a first side edge S1 and a second side edge S2, and the third pad portion 130 has a third side edge S3 and a fourth side edge S4. In this embodiment, the first side S1 is connected to the second side S2, and the third side S3 is connected to the fourth side S4. The first side S1 is not collinear with the second side S2, and the third side S3 is not collinear with the fourth side S4. The second gap g2 is located between the first side S1 and the third side S3. The two ends of the connecting portion 160 are respectively connected to the second side S2 of the second pad portion 120 and the fourth side S4 of the third pad portion 130, and the connecting portion 160 is located outside the second gap g 2. Therefore, the connecting portion 160 may have a suitable serpentine shape as required to facilitate cutting. Moreover, since the connection portion 160 is located outside the second gap g2, other structures of the conductive trace 10 or other elements in the sub-pixel region ZP are less likely to be damaged when the connection portion 160 is cut. However, in another type of embodiment, the connecting portion is located in the second gap, that is, two ends of the connecting portion are respectively connected to the first side edge of the second pad portion and the third side edge of the third pad portion. Therefore, the manufacturing cost is saved.

In light of the above, the present invention provides a method for repairing a display panel, please refer to fig. 3, and fig. 3 is a flow chart illustrating a step of a method for repairing a display panel according to an embodiment of the present invention. The repairing method of the display panel is suitable for the display panel comprising the circuit substrate and the plurality of light emitting diodes. The circuit substrate is provided with a plurality of conducting lines. One of the conductive lines is electrically connected to one of the light emitting diodes. Each conductive connection line is provided with a first connection pad part, a second connection pad part, a third connection pad part and a connecting part for connecting the second connection pad part and the third connection pad part, wherein the first connection pad part, the second connection pad part and the third connection pad part are separated from each other. The first pad portion is electrically connected to one of the first wires. The third pad portion is electrically connected to one of the second wires. Two electrodes of the corresponding light emitting diode are respectively connected to the first pad part and the second pad part. In step S101, a test signal is provided to at least one of the conductive traces and drives the corresponding led to operate. In step S103, it is detected whether one of the leds is in a normal state, an open defect state, or a short defect state. When the led of one of the conductive lines is determined to be in the open defect state, the spare led is connected to the first pad portion and the second pad portion in step S105 to be electrically connected to the conductive line. When the led of one of the conductive lines is determined to be in the short-circuit defect state, in step S105, the connecting portion of the conductive line is cut to electrically isolate the second pad portion from the third pad portion, and another spare led is electrically connected to the second pad portion and the third pad portion of the conductive line.

In one embodiment, in step S101, all or part of the sub-pixel units in the display area of the display panel may be selectively turned on. Whether each sub-pixel unit has a short-circuit defect state or an open-circuit defect state is judged according to whether each sub-pixel unit shines according to a preset mode. The details of the related determination can be designed by those skilled in the art according to the circuit trace, the device characteristics, or the test logic of the display panel, and the determination of the normal state, the open defect state, or the short defect state is not limited herein. In another embodiment, all the sub-pixel units in the display area of the display panel can be lighted up, and whether there is a dark spot in the display frame is determined. When there is a dark spot in the display frame, the microstructure of the display panel is observed by an electron microscope to determine whether the light emitting diode is properly electrically connected to the corresponding pad portion.

Therefore, as described above, when the display panel provided by the present invention is shipped, the conductive traces in different sub-pixel regions on the circuit substrate may have the structures as shown in fig. 2A to fig. 2C. In more detail, ideally, the circuit substrate and the light emitting diodes are smoothly connected to each other in the manufacturing process to be in a normal state, and the conductive lines in the sub-pixel regions have the structure as shown in fig. 2A. When some sub-pixel regions and the corresponding light emitting diodes are not successfully connected in the manufacturing process and are in an open-circuit defect state, the structure shown in fig. 2B is repaired. When some sub-pixel regions and the corresponding light emitting diodes are not successfully jointed in the manufacturing process and are in a short-circuit defect state, the sub-pixel regions and the corresponding light emitting diodes are repaired to have the structure shown in FIG. 2C. Therefore, the conductive traces of a portion of the sub-pixel regions on the same display panel may also be repaired to have the structure shown in fig. 2B to improve the open defect state, and the conductive traces of a portion of the sub-pixel regions may also be repaired to have the structure shown in fig. 2C to improve the short defect state.

Fig. 4A is a schematic structural diagram of a conducting circuit of a display panel according to a second embodiment of the disclosure. Fig. 4A illustrates a structure of one of the conductive lines of another display panel according to the present invention. In this embodiment, other details (such as the substrate, the traces or the leds) in the display panel except for the conductive traces are similar to those described above, and are not repeated herein. Compared to the previous embodiments, in the embodiment shown in fig. 4A, the conductive traces 20 have the first pad portions 210, the second pad portions 220, the third pad portions 230 and the connecting portions 260, and further have the fourth pad portions 240 and the fifth pad portions 250. The fourth pad portion 240 is electrically connected to the first wire w3 connected to the first pad portion 210. The first pad portion 210 and the fourth pad portion 240 are respectively located at two sides of the first wire w3 connected to the first pad portion 210. In another aspect, the first pad portion 210 and the fourth pad portion 240 are electrically connected to the same first wire w3, and the first wire w3 is located between the first pad portion 210 and the fourth pad portion 240.

The fifth pad portion 250 is electrically connected to the second wire w4 connected to the third pad portion 230. The fourth pad receiving portion 240 is spaced apart from the fifth pad receiving portion 250 by a fifth gap g 5. The fourth pad parts 240 are located between the fifth pad parts 250 and the first pad parts 210. In another aspect, the first wire w3 connected to the first pad portion 210 defines two sides, the first pad portion 210, the second pad portion 220 and the third pad portion 230 are located at one side, the fourth pad portion 240 and the fifth pad portion 250 are located at the other side, and the fourth pad portion 240 is closer to the first wire w3 than the fifth pad portion 250.

In this embodiment, the sub-pixel region ZP has a main junction region ZM, similar to the first embodiment described above. The primary land zone ZM includes a portion of the first pad section 210 and a portion of the second pad section 220. One of the leds D corresponding to the conductive trace 20 is disposed in the main junction zone ZM. The sub-pixel zone ZP further defines secondary junction zones ZS3, ZS4, the primary junction zone ZM and the secondary junction zones ZS3, ZS4 do not overlap each other. A portion of the fourth pad portions 240 and the fifth pad portions 250 are covered in the secondary junction ZS3, and a portion of the second pad portions 220 and the third pad portions 230 are covered in the secondary junction ZS 4.

Referring to fig. 4B, how to overcome the open defect state in the second embodiment shown in fig. 4A is described, fig. 4B is a schematic structural diagram of a repaired bonding wire of a display panel according to the second embodiment of the present invention. In this embodiment, when an open defect state exists in the sub-pixel region ZP, the spare light emitting diode Db3 is disposed in the sub-junction region ZS 3. When the two electrodes of the spare led Db3 are properly connected to the fourth pad portion 240 and the fifth pad portion 250 of the sub-pixel ZP 3, the open defect of the sub-pixel ZP can be overcome to make the sub-pixel ZP emit light normally.

Fig. 4C is a schematic structural diagram of another repaired bonding wire of the display panel according to the second embodiment of the invention, showing how to overcome the short-circuit defect state in the second embodiment of fig. 4A. In this embodiment, when a short defect state exists in the sub-pixel region ZP, the spare light emitting diode Db4 is disposed in the sub-junction region ZS 4. In addition, the section 2610 to be cut of the connection portion 260 is broken. If the two electrodes of the spare led Db4 are properly connected to the second pad portion 220 and the third pad portion 230 of the sub-pixel ZP 4, the short circuit defect of the sub-pixel ZP can be overcome to make the sub-pixel ZP emit light normally.

Referring to fig. 4A to further explain the structure of the conductive traces, as shown in fig. 4A, the first pad portion 210 has a pad section 2110 and a connection section 2120, and the pad section 2110 is connected to the first wire w3 through the connection section 2120. The width of the connection segment 2120 is narrower than the width of the pad segment 2110. The second pad portion 220 has

pad segments

2210 and 2220 and a connecting segment 2230. The two ends of the connecting segment 2230 are connected to the

pad segments

2210 and 2220, respectively. The wide portion of the connecting segment 2230 is narrower than the width of the pad segment 2210 and the width of the pad segment 2220. The third pad parts 230 are connected to the second wire w4 through connection parts 280, and the width of the connection parts 280 is narrower than that of the third pad parts 230. The fourth pad portion 240 has a pad section 2410 and a connection section 2420, wherein the pad section 2410 is connected to the first wire w3 through the connection section 2420. The width of the connection section 2420 is narrower than the width of the pad section 2410. The fifth pad part 250 is connected to the second wire w4 through the connection part 290. The width of the connection portion 290 is narrower than the width of the fifth pad portion 250. On the other hand, the pad segments 2220 of the second pad portions 220 have fifth sides S5 and sixth sides S6, and the third pad portions 230 have seventh sides S7 and eighth sides S8. The fifth side S5 and the seventh side S7 are opposite to each other, and the second gap g4 is located between the fifth side S5 and the seventh side S7. One end of the fifth side S5 is connected to the sixth side S6, and one end of the seventh side S7 is connected to the eighth side S8. The fifth side edge S5 is not collinear with the sixth side edge S6, and the seventh side edge S7 is not collinear with the eighth side edge S8. The length of the fifth side S5 is substantially equal to the length of the seventh side S7, and two ends of the connecting portion 240 are connected to the sixth side S6 and the eighth side S8, respectively.

Fig. 5 is a schematic structural diagram of a conducting line of a display panel according to a third embodiment of the invention. The structure of the conductive line shown in fig. 5 is substantially similar to the structure of the conductive line shown in fig. 4A, and details thereof are not repeated. Compared to the embodiment shown in fig. 4A, in the embodiment of fig. 5, the second pad portion 420 has a substantially rectangular shape. In addition, in the embodiment of fig. 5, the third pad portion 430 directly extends to connect the second wire w4, and the fifth pad portion 450 directly extends to connect the second wire w 4. On the other hand, the pad segment 4220 of the second pad part 420 has a ninth side S9 and a tenth side S10, and the third pad part 430 has an eleventh side S11. The eleventh side S11 of the third pad parts 430 has a length longer than that of the ninth side S9 of the second pad parts 420. The two ends of the connecting portion 460 are connected to the tenth side S10 and the eleventh side S11, respectively. The structure shown in fig. 5 can reduce the complexity of the conductive connection and reduce the transmission impedance of part of the structure.

Referring to fig. 6 and 4A for description, fig. 6 is a flowchart illustrating a method for repairing a display panel according to another embodiment of the present invention, where fig. 6 is a flowchart illustrating steps of the method for repairing a display panel according to another embodiment of the present invention. In step S201, a test signal is provided to at least one of the conductive traces and drives the corresponding light emitting diode (e.g., the aforementioned main bonding pad) to operate. In step S203, it is detected whether one of the leds is in a normal state, an open defect state, or a short defect state. When one of the leds is determined to be in the open defect state, the spare leds are connected to the fourth pad portion and the fifth pad portion in step S205. When it is determined that one of the leds is in the short defect state, another spare led is bonded to the fourth pad portion and the fifth pad portion (e.g., the aforementioned sub-bonding regions) in step S207.

Fig. 7A is a schematic structural diagram of a conducting line of a display panel according to a fourth embodiment of the invention. In the embodiment shown in fig. 7A, the sub-pixel area ZP is provided with a conductive line 30. The conductive line 30 includes a connection portion 370, a first pad portion 310, a second pad portion 320, and a spare pad portion 330. One end of the connection portion 370 is electrically connected to the first conductive line w 5. The first pad portion 310 is electrically connected to the other end of the connection portion 370. The first pad portion 310 is electrically connected to the first electrode of the corresponding led D. The spare pad portion 330 is used to electrically connect the first conductive trace w5 electrically connected to the first pad portion 310. The spare pad parts 330 and the first pad parts 310 are respectively located at both ends of the connection part 370. The second pad portion 320 is electrically connected to one of the second wires w 6. The second pad portions 320 are used for electrically connecting the second electrodes of the corresponding light emitting diodes D.

In the present embodiment, the sub-pixel region ZP has a primary junction region ZM and a secondary junction region ZS 5. The primary land ZM refers to a region where the light emitting diode D is bonded to the first and

second pad parts

310 and 320. The primary land ZM does not overlap the secondary land ZS 5. The partial first pad parts 310 and the partial second pad parts 320 are covered in the main junction zone ZM, or the partial first pad parts 310 and the partial second pad parts 320 are covered in the main junction zone ZM. One portion of the spare pad parts 330 and the other portion of the second pad parts 320 are covered in the secondary junction ZS 5. Ideally, the leds D corresponding to the conductive traces 30 are electrically connected to the first pad portion 310 and the second pad portion 320 in the main bonding region ZM, respectively.

Fig. 7B is a schematic diagram illustrating how the open defect state is overcome in the embodiment shown in fig. 7A, and fig. 7B is a schematic diagram illustrating a repaired bonding wire of a display panel according to a fourth embodiment of the present invention. In this embodiment, when an open defect state exists in the sub-pixel region ZP, the spare light emitting diode Db5 is disposed in the sub-junction region ZS 5. If the two electrodes of the spare led Db5 are properly connected to the second pad part 320 and the spare pad part 330 of the sub-pixel ZP 5, the open defect state of the sub-pixel ZP can be overcome and the sub-pixel ZP can normally emit light.

Fig. 7C is a schematic diagram illustrating how the short-circuit defect state is overcome in the embodiment shown in fig. 7A, and fig. 7C is a schematic diagram illustrating another repaired conductive line of the display panel according to a fourth embodiment of the invention. In this embodiment, when a short defect state exists in the sub-pixel region ZP, the spare light emitting diode Db6 is disposed in the sub-junction region ZS 5. Further, the connection portion 370 is disconnected. If the electrodes of the spare light emitting diode Db6 are properly connected to the second pad part 320 and the spare pad part 330 in the sub-junction ZS5 and the connection part 370 is successfully disconnected, the short defect state of the sub-pixel region ZP can be overcome and the sub-pixel region ZP can recover to emit light normally.

Referring to fig. 8A again, fig. 8A is a schematic structural diagram of a conducting circuit of a display panel according to a fifth embodiment of the invention. The structure of the conductive trace 40 shown in fig. 8A is substantially similar to the structure of the conductive trace 30 shown in fig. 7A. The difference between the bonding wire 40 and the bonding wire 30 is that the bonding wire 40 shown in fig. 8A further has a fifth bonding pad 440. The fifth pad portion 440 is electrically connected to the second wire W8. The spare pad part 430 and the fifth pad part 440 are positioned at one side of the first wire W7, and the connection part 470, the first pad part 410 and the second pad part 420 are positioned at the other side of the first wire W7.

Referring to fig. 8B, for explaining how to overcome the open defect state in the embodiment shown in fig. 8A, fig. 8B is a schematic structural diagram of a repaired bonding wire of a display panel according to a fifth embodiment of the present invention. In this embodiment, when an open defect state exists in the sub-pixel region ZP, the spare light emitting diode Db7 is disposed in the sub-junction region ZS 6. If the two electrodes of the spare light emitting diode Db7 are properly connected to the second pad part 420 and the spare pad part 430 of the sub-junction ZS6, the open defect state of the sub-pixel region ZP can be overcome and the sub-pixel region ZP can resume normal light emission.

Referring to fig. 8C again to explain how to overcome the short-circuit defect state in the embodiment shown in fig. 8A, fig. 8C is a schematic structural diagram of another repaired bonding wire of the display panel according to the fifth embodiment of the present invention. In this embodiment, when a short defect state exists in the sub-pixel region ZP, the spare light emitting diode Db8 is disposed in the sub-junction region ZS 6. Further, the connection portion 470 is disconnected. If the electrodes of the spare led Db8 are properly connected to the second pad portions 420 and the spare pad portions 430 in the sub-junction ZS6 and the connection portion 470 is successfully disconnected, the short defect state of the sub-pixel region ZP can be overcome and the sub-pixel region ZP can normally emit light.

In view of the above, another method for repairing a display panel is provided, please refer to fig. 9 for description, and fig. 9 is a flowchart illustrating a step of a method for repairing a display panel according to another embodiment of the present invention. The repairing method of the display panel is suitable for the display panel. The display panel is provided with a circuit substrate and a plurality of light emitting diodes. The circuit substrate is provided with a plurality of sub-pixel areas. Each sub-pixel region is provided with a conducting connection line. The connecting line is provided with a first connecting pad part, a second connecting pad part, a spare connecting pad part and a connecting part which are arranged in a separated mode. The two ends of the connecting part are respectively connected with the first pad part and the standby pad part. The first pad portion and the spare pad portion are electrically connected to one of the first wires. The second pad portion is electrically connected to one of the second wires. In step S301, a test signal is provided to at least one of the conductive traces and drives the corresponding led to operate. In step S303, it is detected whether one of the leds is in a normal state, an open defect state, or a short defect state. When one of the leds is determined to be in the open defect state, the spare leds are correspondingly bonded to the spare pad portions and the second pad portions in step S305. When it is determined that one of the leds is in the short-circuit defect state, in step S307, the connection portion of the conductive connection line corresponding to the led is disconnected, so that the first pad portion electrically insulates the first wire, and the spare led is correspondingly connected to the spare pad portion and the second pad portion.

In summary, the present invention provides a display panel and a repairing method thereof, wherein the conductive connection circuit of the display panel has a plurality of connection pad portions, some of the connection pad portions are used to electrically connect the main led elements, and when there is an abnormal condition, the spare leds are disposed at the corresponding connection pad portions according to the condition. In addition, the conductive connection line is provided with a connecting part, and when a short-circuit defect condition occurs, the connecting part can be disconnected so as to overcome the short-circuit defect condition. On the other hand, by arranging the positions of the pad parts, the structure can be suitable for display panels with different specifications. Therefore, the display panel and the repair method thereof provided by the invention can overcome the open circuit defect condition and the short circuit defect condition, successfully repair the display panel which is originally regarded as a fault, and equivalently improve the yield of a production line.

Although the present invention has been described with reference to the above embodiments, it is not intended to limit the invention. All changes and modifications that come within the spirit and scope of the invention are desired to be protected by the following claims. With regard to the scope of protection defined by the present invention, reference should be made to the appended claims.

Claims

1. A display panel, comprising:

a plurality of light emitting diodes, each light emitting diode comprising a first electrode and a second electrode; and

a circuit substrate, the light emitting diodes being spaced apart from each other and bonded to the circuit substrate, the circuit substrate comprising:

a plurality of first conductive lines;

a plurality of second conductive lines; and

a plurality of first conductive lines for electrically connecting the light emitting diodes, each first conductive line comprising:

a first pad portion electrically connected to one of the first conductive wires;

a second pad part, a first gap is arranged between the second pad part and the first pad part, and the first electrode and the second electrode of the corresponding light emitting diode are respectively and electrically connected with the first pad part and the second pad part;

a third pad portion electrically connected to one of the second wires, a second gap being formed between the third pad portion and the second pad portion, the second pad portion being located between the first pad portion and the third pad portion; and

and the two ends of the connecting part are respectively connected with the second pad connecting part and the third pad connecting part, the connecting part has a width to be cut, and the width to be cut is smaller than the width of the second pad connecting part or the third pad connecting part.

2. The display panel of claim 1, wherein the circuit substrate further comprises a plurality of sub-pixel regions, each sub-pixel region comprises a main bonding region, and the light emitting diodes are respectively disposed on the main bonding regions.

3. The display panel of claim 2, further comprising a spare LED, wherein one of the first conductive traces is located in one of the sub-pixel regions and electrically connected to the spare LED, a portion of the first pad portion and a portion of the second pad portion corresponding to the first conductive trace located in the one of the sub-pixel regions form the main bonding area, another portion of the first pad portion and another portion of the second pad portion form a first sub-bonding area, and the spare LED is disposed in the first sub-bonding area.

4. The display panel of claim 2, further comprising a spare LED and a second conductive trace, the second conductive trace being located in one of the sub-pixel regions and electrically connected to the spare LED, the second conductive trace comprising:

another first pad portion electrically connected to one of the first conductive wires;

a third gap is formed between the second pad part of the second conductive circuit and the first pad part of the second conductive circuit, wherein a part of the first pad part of the second conductive circuit and a part of the second pad part of the second conductive circuit form the main bonding area, and one of the light emitting diodes is arranged in the main bonding area to be electrically connected with the first pad part of the second conductive circuit and the second pad part of the second conductive circuit; and

another third pad part electrically connected to one of the second wires, a fourth gap being formed between the third pad part of the second conductive trace and the second pad part of the second conductive trace, the second pad part of the second conductive trace being located between the first pad part of the second conductive trace and the third pad part of the second conductive trace;

the sub-pixel region corresponding to the second conducting line further includes a second sub-bonding region, another portion of the second bonding pad of the second conducting line and a portion of the third bonding pad of the second conducting line form the second sub-bonding region, and the spare light emitting diode is disposed in the second sub-bonding region.

5. The display panel of claim 1, wherein the circuit substrate further comprises a plurality of sub-pixel regions, the light emitting diodes are respectively disposed in the sub-pixel regions, one of the first conductive traces is disposed in one of the sub-pixel regions, and each of the first conductive traces further comprises:

the fourth pad part is electrically connected with the first lead wire connected with the first pad part, and the first pad part and the fourth pad part are respectively positioned at two sides of the first lead wire connected with the first pad part; and

a fifth pad portion electrically connected to the second wire connected to the third pad portion, a fifth gap being formed between the fourth pad portion and the fifth pad portion, and the fourth pad portion being located between the fifth pad portion and the first pad portion.

6. The display panel of claim 5, further comprising a spare LED, wherein each sub-pixel region further comprises a main junction region and a sub-junction region, a portion of the first pad portion and a portion of the second pad portion of one of the first conductive traces form the main junction region, a portion of the fourth pad portion and a portion of the fifth pad portion form the sub-junction region, one of the LEDs is disposed in the main junction region, and the spare LED is disposed in the sub-junction region.

7. The display panel of claim 5, further comprising a spare LED and a second conductive trace, the second conductive trace located in one of the sub-pixel regions, the second conductive trace comprising:

a third gap is formed between the second pad part of the second conducting circuit and the first pad part of the second conducting circuit, and the corresponding first electrode and the corresponding second electrode of the light emitting diode are respectively and electrically connected to the first pad part of the second conducting circuit and the second pad part of the second conducting circuit;

the other fourth connecting pad part is electrically connected with the first lead wire connected with the first connecting pad part, and the first connecting pad part of the second connecting line and the fourth connecting pad part of the second connecting line are respectively positioned at two sides of the first lead wire connected with the first connecting pad part of the second connecting line; and

another fifth pad part electrically connected to the second wire connected to the third pad part of the second conductive trace, a fifth gap being formed between the fourth pad part of the second conductive trace and the fifth pad part of the second conductive trace, the fourth pad part of the second conductive trace being located between the fifth pad part of the second conductive trace and the first pad part of the second conductive trace;

the spare light emitting diode is electrically connected with the second connecting pad part of the second connecting circuit and the third connecting pad part of the second connecting circuit.

8. A repair method of a display panel is suitable for a display panel, and is characterized in that the display panel comprises a circuit substrate and a plurality of light emitting diodes, the circuit substrate comprises a plurality of connecting lines, one of the connecting lines is electrically connected with one of the light emitting diodes, each connecting line comprises a first connecting pad part, a second connecting pad part, a third connecting pad part and a connecting part for connecting the second connecting pad part and the third connecting pad part, the first connecting pad part is electrically connected with one of a plurality of first wires, the third connecting pad part is electrically connected with one of a plurality of second wires, two electrodes of the corresponding light emitting diodes are respectively connected with the first connecting pad part and the second connecting pad part, and the repair method of the display panel comprises the following steps:

providing a test signal to at least one of the conducting lines and driving the corresponding light emitting diode to work;

detecting whether one of the light emitting diodes is in a normal state, an open circuit defect state or a short circuit defect state;

when the light emitting diode of one of the conductive lines is judged to be in the open circuit defect state, a spare light emitting diode is connected to the first pad part and the second pad part to be electrically connected with the conductive line; and

when the light emitting diode of one of the conductive lines is judged to be in the short-circuit defect state, the other spare light emitting diode is electrically connected to the second pad part and the third pad part of the conductive line, and the connecting part of the conductive line is cut to disconnect the second pad part and the third pad part.

9. A method for repairing a display panel is suitable for a display panel, and the display panel comprises a circuit substrate and a plurality of light emitting diodes, wherein the circuit substrate comprises a plurality of connecting lines, one of the connecting lines is electrically connected with one of the light emitting diodes, a first wire and a second wire, each connecting line comprises a first connecting pad part, a second connecting pad part, a third connecting pad part, a fourth connecting pad part, a fifth connecting pad part and a connecting part, the first connecting pad part and the fourth connecting pad part are electrically connected with the first wire and are respectively positioned at two sides of the first wire, the third connecting pad part and the fifth connecting pad are electrically connected with the second wire and are respectively positioned at two sides of the first wire, two ends of the connecting part are respectively connected with the second connecting pad part and the third connecting pad part, the corresponding light emitting diode is connected with the first connecting pad part and the second connecting pad, the repairing method of the display panel comprises the following steps:

when one of the LEDs is judged to be in the open circuit defect state, a spare LED is connected to the fourth pad part and the fifth pad part; and

when one of the LEDs is determined to be in the short-circuit defect state, another spare LED is connected to the second pad part and the third pad part and the connecting part of the conductive circuit is cut to disconnect the second pad part and the third pad part.

10. A display panel, comprising:

a plurality of light emitting diodes; and

a plurality of first conductive lines;

a plurality of second conductive lines;

a plurality of first conductive lines, each of the first conductive lines electrically connected to one of the light emitting diodes, each of the first conductive lines comprising:

a connecting part, one end of which is electrically connected with one of the first wires;

the first pad part is electrically connected with the other end of the connecting part and is electrically connected with a first electrode of the corresponding light-emitting diode;

the standby pad part is electrically connected with the first wire electrically connected with the connecting part, and the standby pad part and the first pad part are respectively positioned at two ends of the connecting part;

a second pad portion electrically connected to one of the second wires, the second pad portion being electrically connected to a second electrode of the corresponding light emitting diode; and

and the standby light-emitting diode is arranged on one of the first conducting connection circuits, a first electrode of the standby light-emitting diode is electrically connected with the standby connection pad part, and a second electrode of the standby light-emitting diode is electrically connected with the second connection pad part.

11. The display panel of claim 10, further comprising a spare led and a second conductive line, the second conductive line comprising:

the first pad part of the second conducting circuit is electrically connected with a first electrode of one of the light-emitting diodes;

another spare pad part electrically connected to one of the first wires, the spare pad part of the second conductive circuit and the first pad part of the second conductive circuit being spaced apart and electrically insulated from each other; and

the other second connecting pad part is electrically connected with one of the second wires, and the second connecting pad part of the second connecting circuit is electrically connected with a second electrode of the corresponding light-emitting diode;

a first electrode and a second electrode of the spare light emitting diode are respectively and electrically connected with the spare pad part and the second pad part of the second conductive connection circuit.

12. The display panel of claim 11, further comprising a plurality of sub-pixel regions, wherein the first conductive traces and the second conductive traces are respectively located in the sub-pixel regions, each sub-pixel region comprises a main bonding region and a sub-bonding region, the main bonding region and the sub-bonding region do not overlap, the main bonding region of the first conductive traces covers the first pad portion and the second pad portion, the sub-bonding region of the first conductive traces covers the spare pad portion and the second pad portion, the main bonding region of the second conductive trace covers the first pad portion of the second conductive trace and the second pad portion of the second conductive trace, the sub-bonding region of the second conductive trace covers the spare pad portion of the second conductive trace and the second pad portion of the second conductive trace, and the light emitting diodes are bonded to the main bonding regions, the spare light emitting diode is connected to the auxiliary connection area.

13. The display panel of claim 10, further comprising a spare light emitting diode and the first conductive trace further comprises a fifth pad portion electrically connected to the second conductive trace, the spare pad portion and the fifth pad portion being disposed at one side of the first conductive trace, the connecting portion, the first pad portion and the second pad portion being disposed at the other side of the first conductive trace, wherein a first electrode of the spare light emitting diode is electrically connected to the spare pad portion, and a second electrode of the spare light emitting diode is electrically connected to the fifth pad portion.

14. A repair method of a display panel is suitable for a display panel and is characterized in that the display panel comprises a circuit substrate and a plurality of light emitting diodes, the circuit substrate comprises a plurality of sub-pixel areas, each sub-pixel area is provided with a connecting circuit, the connecting circuit is provided with a first connecting pad part, a second connecting pad part, a standby connecting pad part and a connecting part which are arranged at intervals, one end of the connecting part is electrically connected with the first connecting pad part, the standby connecting pad part and the first connecting pad part are respectively arranged at two ends of the connecting part, the connecting part and the standby connecting pad part are electrically connected with one of a plurality of first wires, the second connecting pad part is electrically connected with one of a plurality of second wires, and the repair method of the display panel comprises the following steps:

when one of the LEDs is judged to be in the open circuit defect state, the spare LEDs are correspondingly connected to the spare pad part and the second pad part; and

when one of the LEDs is determined to be in the short-circuit defect state, the connecting portion is cut to disconnect the first wire and the first pad portion, so that the first pad portion is electrically insulated from the first wire, and the spare LEDs are correspondingly bonded to the spare pad portion and the second pad portion.