TWI772888B - Display panel and spliced panel - Google Patents

Abstract

A display panel includes a substrate, a first power supply unit and a second power supply unit. The first power supply unit is on the substrate and includes a plurality of first power supply lines and a first bridge line. The first bridge line is in contact with a first edge of the substrate. The first power supply lines are electrically connected with each other by the first bridge line. The second power supply unit is on the substrate and includes a plurality of second power supply lines and a second bridge line. The second bridge line is in contact with the first edge of the substrate. The second power supply lines are electrically connected with each other by the second bridge line. The second power supply unit and the first power supply unit have different electrical potentials.

Description

Display panel and splicing panel

The present invention relates to a display panel and a splicing panel.

Compared with the liquid crystal display, the light-emitting diode display has the possibility of being highly frameless in design, and by using the modular splicing method, it can achieve the advantages of zero visual seams and not easily affect the quality of the display screen. It has received more and more attention in recent years.

Light-emitting diodes are driven by current. If the potential of the display is different, it may affect the current passing through the light-emitting diodes, resulting in uneven brightness of the display or no lighting. the greater the impact. Therefore, there is an urgent need for a method that can solve the aforementioned problems.

The present invention provides a display panel that reduces the risk of short circuits.

The present invention provides a spliced panel, which reduces the risk of short circuit and avoids the problem of voltage drop caused by the oversized display panel.

The present invention provides a display panel, comprising a substrate, a first power supply unit, and a second power supply unit. The first power supply unit is located on the substrate and includes a plurality of first power supply lines and first bridge lines. The first bridge line contacts the first edge of the substrate, and the first power supply lines are electrically connected to each other through the first bridge line. The second power supply unit is located on the substrate and includes a plurality of second power supply lines and second bridge lines. The second bridge line contacts the first edge of the substrate, wherein the second power supply lines are electrically connected to each other through the second bridge line, and the second power supply unit and the first power supply unit have different potentials.

The present invention provides a splicing panel, comprising a plurality of the above-mentioned display panels and conductive materials. The first edges of the substrates of the two adjacent display panels are in contact with each other. A conductive material is located on each of the first edges and contacts the first bridge line and the second bridge line.

Based on the above, in the display panel and the splicing panel according to an embodiment of the present invention, when the display panel is spliced with other display panels, the risk of short circuit at the contact surfaces of the two display panels can be reduced. In the splicing panel of an embodiment of the present invention, when a local area of one of the display panels is lit, the current of the other display panels can support the lit local area, so as to avoid the voltage drop (IR drop) problem.

1A is a schematic top view of a display panel 10 according to an embodiment of the present invention. Please refer to FIG. 1A , the display panel 10 includes a substrate 100 , a first power supply unit 102 and a second power supply unit 104 . The first power supply unit 102 is located on the substrate 100 and includes a plurality of first power supply lines 106 and a first bridge line 108 . The first bridge wire 108 contacts the first edge 100 a of the substrate 100 , and the first power supply wires 106 are electrically connected to each other through the first bridge wire 108 . The second power supply unit 104 is located on the substrate 100 and includes a plurality of second power supply lines 110 and second bridge lines 112. The second bridge lines 112 contact the first edge 100a of the substrate 100, wherein the second power supply lines 110 pass through the first edge 100a of the substrate 100. The two bridge wires 112 are electrically connected to each other, and the second power supply unit 104 and the first power supply unit 102 have different potentials.

In this way, when the display panel 10 is spliced with other display panels (see FIG. 2 ), the risk of short circuit at the contact surfaces of the two display panels 10 can be reduced. For example, when the first edge 100a of the display panel 10 is spliced with the first edges of other display panels (see FIG. 2 ), a short circuit will not cause contact between the first edges 100a of the two. For example, the first power supply line 106 and the second power supply line 110 can be brought into contact with the same electrical wiring of the display panel to be spliced (see FIG. 2 ), thereby reducing the risk of short circuit.

For convenience of description, FIG. 1A and FIG. 1B illustrate the first direction D1 and the second direction D2, and the first direction D1 and the second direction D2 intersect. The first bridge line 108 and the second bridge line 112 are parallel to the first direction D1.

The display panel 10 has a plurality of pixel structures PX (see FIG. 1B ), and the plurality of pixel structures PX are arranged on the substrate 100 in an array. For example, the pixel structures PX are along the first direction D1 and the second direction D2 are arranged in an array. For convenience of description, the components in the illustrated part are omitted in FIG. 1B . Please refer to FIG. 1A and FIG. 1B together, the display panel 10 has a display area AA and a non-display area NA, and the non-display area NA is located on one side of the display area AA. For example, the outline of the display area AA is a rectangle. In other words, the display area AA has four sides that are perpendicular to each other, and the non-display area NA is located on one of the four sides of the display area AA. In this embodiment, the non-display area NA is located on a side of the display area AA away from the first edge 100 a of the substrate 100 . The display panel 10 also has a flexible board 114 located in the non-display area NA. In this embodiment, the flexible board 114 is, for example, a flexible printed circuit.

The flexible board 114 is located on the second edge 100b of the substrate 100, wherein the second edge 100b is opposite to the first edge 100a. The flex board 114 provides a common working voltage (Vdd) source and a common ground voltage (Vss). For example, the first power supply unit 102 receives the operating voltage (Vdd) provided from the flexible board 114 , and the second power supply unit 104 receives the ground voltage (Vss) provided from the flexible board 114 .

FIG. 1C is an equivalent circuit diagram of the pixel structure PX of FIG. 1B . Please refer to FIG. 1A , FIG. 1B and FIG. 1C together, each pixel structure PX includes a light emitting element 116 , a first thin film transistor T1 and a second thin film transistor T2 . In this embodiment, the light-emitting element 116 is, for example, a light-emitting diode. The light emitting element 116 is coupled to the second power supply line 110 to receive the ground voltage (Vss). The first thin film transistor T1 has a first gate GE1, a first source SE1, a first drain DE1, and a first source SE1 The first power supply line 106 is coupled to receive the working voltage (Vdd), and the first drain electrode DE1 is coupled to the light-emitting element 116 . The storage capacitor Cs is coupled between the first drain electrode DE1 and the first gate electrode GE1.

The second thin film transistor T2 has a second gate GE2, a second source SE2 and a second drain DE2, the second source SE2 receives a data voltage (Vdata), and the second drain DE2 is coupled to the first gate GE1, And the second gate GE2 receives the scan voltage (Sn).

The first power supply line 106 constitutes a metal mesh, and the second power supply line 110 constitutes a metal mesh.

The first power supply line 106 has the first part 106A closest to the flexible board 114 , and the line width of the first part 106A is larger than that of the rest of the first power supply lines 106 , which can prevent the first part 106A from collecting current to the soft board. When the board 114 is damaged due to excessive current, the reliability of the first power supply line 106 is improved.

The second power supply line 110 has the second part 110A closest to the flexible board 114 , and the line width of the second part 110A is larger than the line width of the rest of the second power supply lines 110 , which can prevent the second part 110A from collecting current to the soft board. When the board 114 is damaged due to excessive current, the reliability of the second power supply line 110 is improved.

The line width of the first bridge line 108 is larger than the line width of the first power supply line 106 and the line width of the second power supply line 110 , which can prevent the damage of the first bridge line 108 caused by excessive current when the current is collected to the first bridge line 108 and improve the first bridge Reliability of wiring 108. The line width of the second bridge line 112 is larger than the line width of the first power supply line 106 and the line width of the second power supply line 110 , which can prevent the second bridge line 108 from being damaged due to excessive current when the current is collected, thereby improving the second bridge line. Line 108 reliability.

The first bridge line 108 is mirror-symmetrical along the direction perpendicular to the first edge 100a (ie the second direction D2 ), and the second bridge line 112 is mirror-symmetrical along the axis along the direction (ie the second direction D2 ) . The other display panels to be spliced (see FIG. 2 ) are rotated 180 degrees relative to the display panel 10 , so that the first edges 100 a of the respective substrates 100 of two adjacent display panels are in contact with each other. In this way, when the first edge 100a of the display panel 10 is spliced with other display panels (see FIG. 2 ), the first bridge lines 108 can contact the first bridge lines 108 of the other display panels (see FIG. 2 ) and avoid the In contact with its second bridge line 112 , the second bridge line 112 can contact the second bridge line 112 of other display panels (see FIG. 2 ) and avoid contact with its first bridge line 108 , that is, the display panel 10 The first bridge line 108 will not contact the second bridge line 112 with a different potential, and the second bridge line 112 of the display panel 10 will not contact the first bridge line 108 with a different potential, thereby avoiding a short circuit .

FIG. 2 is a schematic top view of a splicing panel 20 according to an embodiment of the present invention, FIG. 3 is a schematic cross-sectional view along the section line AA' of FIG. 2 , and FIG. 4 is a schematic view along the section line of FIG. 2 Please refer to FIG. 2 , FIG. 3 and FIG. 4 for the schematic cross-sectional view of BB′. The splicing panel 20 includes a plurality of display panels 10 . In this embodiment, the splice panel 20 further includes a carrier board 12 . In some embodiments, the display panel 10 is assembled by the carrier board 12 . In some embodiments, the carrier board 120 includes, for example, two parts assembled on the two display panels 10 respectively, and then the two parts of the carrier board 12 are combined with each other. In some embodiments, the display panels 10 are fixed together on a monolithic carrier board 12 . The first edges 100a of the respective substrates 100 of two adjacent display panels 10 are in contact with each other. When a local area of one of the display panels 10 is lit, the current of the other display panels 10 can support the lit local area, so as to avoid the problem of IR drop caused by the excessive size of the display panel 10, so that the Brightness is uniform. In this embodiment, as mentioned above, half of the display panels 10 are rotated 180 degrees relative to the other half of the display panels 10 so that the first edges 100a of the respective substrates 100 of the two adjacent display panels 10 are in contact with each other, so that the A splice panel 20 is formed.

FIG. 5 is a schematic top view of a splicing panel 20a according to an embodiment of the present invention, FIG. 6 is a schematic cross-sectional view along the section line AA' of FIG. The cross-sectional schematic diagram of BB', please refer to Fig. 5, Fig. 6 and Fig. 7 together. The main difference between the splicing panel 20a in Fig. 5 and the splicing panel 20 in Fig. 2 is that the splicing panel 20a also includes a conductive material 118 , the conductive material 118 is located on each of the first edges 100 a and contacts the first bridge line 108 and the second bridge line 112 . The conductive material 118 can provide good electrical conduction between the first bridge lines 108 and provide good electrical conduction between the second bridge lines 112 , thereby reducing the first power supply line 106 and the second power supply line 106 of each display panel 10 . The resistance of the two power supply lines 110 . In this embodiment, the conductive material 118 has a first portion 118A and a second portion 118B, the first portion 118A is located on the top surface of the first bridge line 108 , and the second portion 118B is located on the top surface of the second bridge line 112 . The first portion 118A and the second portion 118B are separated from each other. For example, the first portion 118A and the second portion 118B are separated along the first direction D1.

FIG. 8 is a schematic top view of a splicing panel 20b according to an embodiment of the present invention, FIG. 9 is a schematic cross-sectional view along the section line AA' of FIG. 8, and FIG. 10 is a schematic view along the section line of FIG. 8 Please refer to FIGS. 8 , 9 and 10 for the cross-sectional schematic diagram of BB′. The main difference between the splicing panel 20b in FIG. 8 and the splicing panel 20a in FIG. 5 lies in the first The bridge lines 108 and the second bridge lines 112 extend to the side surfaces of the first edges 100a of the substrate 100, and the conductive material 118 is located between the side surfaces of the first edges 100a. The conductive material 118 can provide good electrical conduction between the first bridge lines 108 and provide good electrical conduction between the second bridge lines 112 , thereby reducing the first power supply line 106 and the second power supply line 106 of each display panel 10 . The resistance of the two power supply lines 110 . In this embodiment, the conductive material 118 has a first portion 118A and a second portion 118B. The first portion 118A is located on the side of the first bridge line 108 , and the second portion 118B is located on the side of the second bridge line 112 . The first portion 118A and the second portion 118B are separated from each other. For example, the first portion 118A and the second portion 118B are separated along the first direction D1.

FIG. 11 is a schematic top view of a display panel 30 according to another embodiment of the present invention. The main difference between the display panel 30 of FIG. 11 and the display panel 10 of FIG. 1 is that the first power supply unit 102 further includes a third bridge wire 120 , the second power supply unit 104 further includes a fourth bridge line 122 , and the third bridge line 120 and the fourth bridge line 122 contact the second edge 100 b of the substrate 100 . In this way, in addition to the first edge 100a of the display panel 30 that can be spliced with other display panels (see FIG. 12 ), the second edge 100b of the display panel 30 can also be spliced with other display panels (see FIG. 12 ), so that Stitching elastic. For example, the third bridge line 120 of the display panel 30 can be in contact with the first bridge line 108 of other display panels (see FIG. 12 ), and the fourth bridge line 122 can be connected with the second bridge line of other display panels (not shown). Wire 112 contacts, reducing the risk of short circuits.

The third bridge line 120 is mirror-symmetrical along a direction perpendicular to the second edge 100b (ie the second direction D2 ), and the fourth bridge line 122 is mirror-symmetrical along the axis along this direction (ie the second direction D2 ). symmetry. The first edge of the other display panels to be spliced (see FIG. 12) and the second edge 100b of the display panel 30 are brought into contact with each other, so that when the second edge 100b of the display panel 30 and other display panels (see FIG. 12) When splicing, the third bridge line 120 can contact the first bridge line 108 and avoid contact with the second bridge line 112, and the fourth bridge line 122 can contact the second bridge line 112 and avoid contact with the first bridge line 108. This avoids short circuits.

In this embodiment, the second bridge line 112 has a first branch 112A and a second branch 112B physically separated along a direction extending along the first edge 100a (ie, the first direction D1 ), and the first branch 112A and the second branch The spacing S1 of 112B is greater than that of the flexible board 114 extending along the first edge 100a The length L1 in the direction. In other words, the distance S1 between the first branch 112A and the second branch 112B along the first direction D1 is greater than the length L1 of the flexible board 114 along the first direction D1. That is to say, there is a clearance area between the first branch 112A and the second branch 112B, so that the flexible boards of other display panels to be spliced (see FIG. 12 ) will not contact and damage the first branch 112A and the second branch 112B .

FIG. 12 is a schematic top view of a splicing panel 40 according to an embodiment of the present invention. Please refer to FIG. 12 , the splicing panel 40 includes a plurality of display panels 30 , and the first edges 100 a of the substrates 100 of two adjacent display panels 30 are and the second edge 100b are in contact with each other. When a local area of one of the display panels 30 is lit, the current of the other display panels 30 can support the lit local area, avoiding the problem of IR drop due to the oversized display panel 30 . In this embodiment, the flexible board 114 is folded to the back of the substrate 100 , so that the first edge 100 a and the second edge 100 b of the display panel 30 can be in contact with each other.

FIG. 13 is a schematic top view of a display panel 50 according to another embodiment of the present invention. The main difference between the display panel 50 in FIG. 13 and the display panel 10 in FIG. 1 is that the first power supply unit 102 further includes a fifth bridge line 124 The second power supply unit 104 further includes a sixth bridge line 126, the fifth bridge line 124 and the sixth bridge line 126 contact the third edge 100c of the substrate 100, and the third edge 100c is connected to one end of the first edge 100a. In this way, in addition to the first edge 100a of the display panel 50 that can be spliced with other display panels (see FIG. 14 ), the third edge 100c of the display panel 50 can also be spliced with other display panels (see FIG. 14 ), so that the Stitching elastic. For example, the fifth bridge line 124 of the display panel 50 can be in contact with the first power supply lines of other display panels (see FIG. 14 ), and the sixth bridge line 126 can be in contact with the second power supply lines of other display panels (not shown). Supply line contacts, reducing the risk of short circuits.

The fifth bridge line 124 is mirror-symmetrical along a direction perpendicular to the third edge 100c (ie, the first direction D1 ), and the sixth bridge line 126 is mirror-shaped along this direction (ie, the first direction D1 ). symmetry. The display panel 50 has a fourth edge 100d opposite to the third edge 100c, and the fourth edge of the other display panels to be spliced (see FIG. 14) and the third edge 100c of the display panel 50 are in contact with each other, so that when When the third edge 100c of the display panel 50 is spliced with other display panels (see FIG. 14 ), the fifth bridge line 124 can contact the first power supply line 106 and avoid contact with the second power supply line 110 and the sixth bridge line 126 The second power supply line 110 can be contacted and the first power supply line 106 can be avoided, thereby avoiding short circuits.

In this embodiment, a part of the first power supply line 106 and a part of the second power supply line 110 of the display panel 50 extend to contact the fourth edge 100d. For example, the first power supply line 106 corresponding to the fifth bridge line 124 extends to contact the fourth edge 100d, and the second power supply line 110 corresponding to the sixth bridge line 126 extends to contact the fourth edge 100d, which can reduce One side of the display panel 50 (eg, the fourth edge 100 d ) is an area where other bridge lines are placed, and the alignment accuracy during splicing is reduced.

FIG. 14 is a schematic top view of a splicing panel 60 according to another embodiment of the present invention. The splicing panel 60 includes a plurality of display panels 50 , a fourth edge 100d is connected to the other end of the first edge 100a , and two adjacent display panels 50 The third edge 100c and the fourth edge 100d of each substrate 100 are in contact with each other. When a local area of one of the display panels 50 is lit, the current of the other display panels 50 can support the lit local area, so as to avoid the problem of IR drop caused by the excessive size of the display panel 50. Brightness is uniform.

FIG. 15 is a schematic top view of a display panel 70 according to another embodiment of the present invention. The main difference between the display panel 70 of FIG. 15 and the display panel 50 of FIG. 13 is that the first power supply unit 102 further includes a seventh bridge line 128 , the second power supply unit 104 further includes an eighth bridge line 130 , and the seventh bridge line 128 and the eighth bridge line 130 contact the fourth edge 100 d of the substrate 100 . In this way, in addition to the first edge 100a and the third edge 100c of the display panel 70 that can be spliced with other display panels (see FIG. 16 ), the fourth edge 100d of the display panel 70 can also be spliced with other display panels (see FIG. 16 ). Figure) splicing to make the splicing elastic. For example, the seventh bridge line 128 of the display panel 70 may be in contact with the fifth bridge line 124 of other display panels (see FIG. 16 ), and the eighth bridge line 130 may be in contact with the fifth bridge line 124 of the other display panels (see FIG. 16 ). Six bridge wiring contacts, reducing the risk of short circuits.

The seventh bridge line 128 is mirror-symmetrical along a direction perpendicular to the fourth edge 100d (eg, the first direction D1 ), and the eighth bridge line 130 is mirror-symmetrical along the axis along this direction (eg, the first direction D1 ). . In this way, when the fourth edge 100d of the display panel 70 is spliced with other display panels (see FIG. 16 ), the seventh bridge line 128 can contact the fifth bridge line 124 and avoid contact with the sixth bridge line 126 , the eighth bridge line 128 The bridge line 130 can contact the sixth bridge line 126 and avoid contact with the fifth bridge line 124, thereby avoiding short circuits.

FIG. 16 is a schematic top view of a splicing panel 80 according to an embodiment of the present invention. Please refer to FIG. 16 , the splicing panel 80 includes a plurality of display panels 70 , and the third edge of each substrate 100 of two adjacent display panels 70 100c and the fourth edge 100d are in contact with each other. When a local area of one of the display panels 70 is lit, the current of the other display panels 70 can support the lit local area, so as to avoid the problem of IR drop caused by the excessive size of the display panel 70, making it Brightness is uniform.

To sum up, in the display panel and the splicing panel according to an embodiment of the present invention, when the display panel is spliced with other display panels, the risk of short circuit at the contact surfaces of the two display panels can be reduced. In the splicing panel of an embodiment of the present invention, when a local area of one of the display panels is lit, the current of the other display panels can support the lit local area, so as to avoid the voltage drop (IR drop) problem.

10: Display panel 12: Carrier board 20, 20a, 20b: Splice panels 30: Display panel 40: Splicing panel 50: Display panel 60: Splicing panel 70: Display panel 80: Splicing panel 100: Substrate 100a: First edge 100b: Second edge 100c: Third edge 100d: Fourth edge 102: the first power supply unit 104: Second power supply unit 106: The first power supply line 106A: Part 1 108: The first bridge line 110: Second power supply line 110A: Part II 112: Second bridge line 112A: First branch 112B: Second branch 114: FPC 116: Light-emitting element 118: Conductive Materials 118A: Part 1 118B: Part II 120: Third bridge wiring 122: Fourth bridge wiring 124: Fifth bridge wire 126: Sixth bridge wiring 128: Seventh bridge wiring 130: Eighth Bridge Line A-A': section line AA: display area B-B': section line Cs: storage capacitor D1: first direction D2: Second direction DE1: first drain DE2: Second drain GE1: first gate GE2: the second gate L1: length NA: non-display area PX: pixel structure S1: Spacing SE1: first source SE2: second source T1: The first thin film transistor T2: Second thin film transistor

Various aspects of the present disclosure can be understood by reading the following detailed description and corresponding drawings. It should be noted that various features in the drawings are not drawn to scale according to standard practice in the industry. In fact, the dimensions of the described features may be arbitrarily increased or decreased to facilitate clarity of discussion. FIG. 1A is a schematic top view of a display device according to an embodiment of the present invention. FIG. 1B is a schematic top view of a display device according to an embodiment of the present invention. FIG. 1C is an equivalent circuit diagram of the pixel structure of FIG. 1B . FIG. 2 is a schematic top view of a splicing panel according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional view taken along line A-A' in Fig. 2 . Fig. 4 is a schematic cross-sectional view taken along line B-B' in Fig. 2 . FIG. 5 is a schematic top view of a splicing panel according to an embodiment of the present invention. Fig. 6 is a schematic cross-sectional view taken along the line A-A' in Fig. 5 . Fig. 7 is a schematic cross-sectional view taken along line B-B' in Fig. 5 . FIG. 8 is a schematic top view of a splicing panel according to an embodiment of the present invention. Fig. 9 is a schematic cross-sectional view taken along the line A-A' in Fig. 8 . Fig. 10 is a schematic cross-sectional view taken along line B-B' in Fig. 8 . FIG. 11 is a schematic top view of a display panel according to another embodiment of the present invention. FIG. 12 is a schematic top view of a splicing panel according to an embodiment of the present invention. FIG. 13 is a schematic top view of a display panel according to another embodiment of the present invention. FIG. 14 is a schematic top view of a splice panel according to another embodiment of the present invention. FIG. 15 is a schematic top view of a display panel according to another embodiment of the present invention. FIG. 16 is a schematic top view of a splicing panel according to an embodiment of the present invention.

Domestic storage information (please note in the order of storage institution, date and number) none Foreign deposit information (please note in the order of deposit country, institution, date and number) none

10: Display panel

100: Substrate

100a: First edge

100b: Second edge

102: the first power supply unit

104: Second power supply unit

106: The first power supply line

106A: Part 1

108: The first bridge line

110A: Part II

110: Second power supply line

112: Second bridge line

114: FPC

D1: first direction

D2: Second direction

Claims (13)

A display panel, comprising: a substrate; a first power supply unit located on the substrate and comprising: a plurality of first power supply lines; and a first bridge line contacting a first edge of the substrate, and the The first power supply lines are electrically connected to each other through the first bridge line; and a second power supply unit is located on the substrate and includes: a plurality of second power supply lines; and a second bridge line, contacting the substrate The first edge, wherein the second power supply lines are electrically connected to each other through the second bridge line, and the second power supply unit and the first power supply unit have different potentials, and the first power supply unit also Including a fifth bridge line, the second power supply unit also includes a sixth bridge line, the fifth bridge line and the sixth bridge line contact a third edge of the substrate, and the third edge is connected to the first one end of the edge. The display panel of claim 1, wherein the first bridge line is mirror-symmetrical along an axis along a direction perpendicular to the first edge, and the second bridge line is mirror-symmetrical along the axis along the direction. The display panel of claim 1, further comprising: a flexible board located on a second edge of the substrate, wherein the second edge is opposite to the first edge. The display panel of claim 3, wherein the first power supply unit further includes a third bridge line, the second power supply unit further includes a fourth bridge line, and the third bridge line and the fourth bridge line Line contacts the second edge of the substrate. The display panel of claim 4, wherein the third bridge line is mirror-symmetrical along an axis along a direction perpendicular to the second edge, and the fourth bridge line is mirror-symmetrical along the axis along the direction. The display panel of claim 1, wherein the fifth bridge line is mirror-symmetrical along an axis along a direction perpendicular to the third edge, and the sixth bridge line is mirror-symmetrical along the axis along the direction. The display panel of claim 2, wherein the first power supply unit further includes a seventh bridge line, the second power supply unit further includes an eighth bridge line, the seventh bridge line and the eighth bridge line A fourth edge of the substrate is contacted, and the fourth edge is connected to one end of the first edge. The display panel of claim 7, wherein the seventh bridge line is mirror-symmetrical along an axis perpendicular to the fourth edge, and the eighth bridge line is mirror-symmetrical along the axis along the direction. The display panel of claim 3, wherein the second bridge line has a first branch and a second branch physically separated along a direction perpendicular to the first edge, the first branch and the second branch The spacing of the branches is greater than the length of the flexible board along the extending direction of the first edge. The display panel of claim 1, wherein the line width of the first bridge line is larger than the line width of the first power supply line and the line width of the second power supply line. The display panel of claim 1, further comprising: a plurality of pixel structures arranged in an array on the substrate, wherein each pixel structure comprises: a light-emitting element coupled to the second power supply line; a first a thin film transistor having a first gate, a first source and a first drain, the first source is coupled to the first power supply line, and the first drain is coupled to the light-emitting element; and a second thin film transistor with a second gate, a second source and a second drain, the second source receives a data voltage, the second drain is coupled to the first gate, And the second gate receives a scan voltage. A spliced panel, comprising: a plurality of display panels as described in any one of claims 1 to 11, and the first edges of the substrates of two adjacent display panels are in contact with each other; and a conductive material, located in on each of the first edges and in contact with the first bridge line and the second bridge line. The spliced panel of claim 12, wherein the first bridge line and the second bridge line of each of the display panels extend to the side of the first edge of the substrate, and the conductive material is located on the side of each of the first edges between the sides.

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