TWM617169U - Light emitting display device - Google Patents

Abstract

This case proposes a light-emitting display device, which has a substrate, a first patterned conductive layer and a second patterned conductive layer respectively disposed on opposite surfaces of the substrate, a plurality of pad regions, and a plurality of light-emitting elements. The minimum distance between the light-emitting elements is 2 to 3 mm. The first patterned conductive layer has a plurality of first wires that are interwoven into a grid shape, and the second patterned conductive layer has a plurality of second wires that are parallel to each other and spaced apart from each other and extensions connected from each of the second wires. The substrate is used for Isolate the electrical contact between the first patterned conductive layer and the second patterned conductive layer. The bonding pad regions are separated from each other, one bonding pad region is electrically connected to the first wire, and the other bonding pad regions are respectively connected to the extensions of three adjacent second wires.

Description

Light-emitting display device

This creation is about a display device, especially a light-emitting display device.

In response to the development of display screens that are larger in size, flattened, thinner, lighter, and flexible, passive point light sources and active point light sources are used as the light source of the display, and flexible substrates are used to configure these light sources. The development of light-emitting display technology for substrates has become increasingly important. The passive point light-emitting source is, for example, a light emitting diode (LED), and the active point light-emitting source is, for example, an organic light-emitting diode (OLED). In a branch of technological development, the follow-up development of large-screen light-emitting displays developed with LEDs as light sources for people to watch from a distance is worthy of attention.

In the production of this kind of light-emitting display for people to watch from a distance, you can choose to install LED lamp beads or LED chips composed of multiple LEDs on the substrate in the form of an array. The distance between the LED lamp beads or the LED chips Not less than 2 millimeters (mm), which is different from organic light-emitting diode (OLED) displays or micro-size light-emitting diode (Micro-LED) displays for people to watch at close range. In order to enable each LED lamp bead or LED chip in the array to be lit and have a brightness that meets the requirements, the configuration substrate and configuration wires of these LED lamp beads or LED chips must have good conductive power. In addition, in order to improve the contrast of viewing this type of light-emitting display from a long distance, it is also necessary to reduce the visibility of the configuration substrates of these LED lamp beads or LED chips and their configuration wires in the display screen. On the other hand, in order to meet the display effect required by various applications, the production of the configuration wires of these LED lamp beads or LED chips must have a good The design is changeable and can be produced quickly. In view of the above technical problems, this author hopes to propose solutions.

In view of the above-mentioned problems, the present creation provides a light-emitting display device.

In one embodiment, the light-emitting display device has a substrate, a first patterned conductive layer, a second patterned conductive layer disposed on the substrate, a first pad area, a second pad area, and a second pad area electrically isolated from each other. The third pad area, a fourth pad area and a plurality of light-emitting elements. The substrate has a first surface and a second surface opposite to the first surface, and the substrate has a plurality of through holes. The first patterned conductive layer is disposed on the first surface and has a plurality of first conductive lines interwoven into a grid shape. The second patterned conductive layer is disposed on the second surface, and has at least three linear second wires that are parallel to each other and are equally or unequally spaced from each other, and linear extensions connected from each second wire And at least one island part separated from the second wire, the disposition direction of the extension part and the disposition direction of the second wire intersect, and the island part is electrically connected to the junction of the first wire through one of the through holes. The first solder pad area is disposed on the island portion, and the second solder pad area, the third solder pad area and the fourth solder pad area are respectively disposed on the extension portion. The plurality of light-emitting elements are arranged on the same side of the second surface in an array form, and the minimum distance between each other is 2 to 3 mm. The four different pins of at least one light-emitting element are respectively connected to the first bonding pad area and the second bonding pad. Area, third pad area and fourth pad area.

In an embodiment, the line width of each first wire of the first patterned conductive layer of the light-emitting display device is 25 μm to 100 μm, and the line width of each second wire is 25 μm to 100 μm.

In an embodiment, the grid shape of the first conductive lines of the first patterned conductive layer of the light-emitting display device is one of a rectangle, a hexagon, an ellipse, and a circle.

In an embodiment, the light-emitting display device further has a third patterned conductive layer, which is disposed on the second surface of the substrate and is electrically isolated from the second patterned conductive layer, and has at least three patterns connected to each second The third wires that are parallel to each other and are equally or unequally spaced apart from each other in a linear shape, the extending direction of the third wire and the extending direction of the second wire intersect, and the third wire is extended and connected to the lighting of the light-emitting display device Signal input terminal.

In one embodiment, the light-emitting display device further has a first patterned electrically insulating layer, which has a plurality of first electrically insulating regions, and is disposed between the second patterned conductive layer and the third patterned conductive layer. An electrically insulating block electrically isolates the third wire from the second wire.

In one embodiment, the light-emitting display device further has a second patterned electrically insulating layer, which has a plurality of second electrically insulating areas, and the second electrically insulating areas are respectively along the first pad area and the second pad area. Area, the third pad area, and the fourth pad area are arranged on the second surface of the substrate in a first arrangement direction to isolate the first pad area, the second pad area, the third pad area and the first pad area The four bonding pad regions are electrically contacted in a second arrangement direction, and the second arrangement direction crosses the first arrangement direction.

In one embodiment, the light-emitting display device further has a third patterned electrical insulation layer, which has a plurality of third electrical insulation regions, and the third electrical insulation regions are respectively along the first pad area and the second pad area. The second arrangement direction of the third pad area, the third pad area, and the fourth pad area is arranged above the second wire connecting the third pad area to isolate the first pad area, the second pad area, and the third pad area. The solder pad area and the fourth solder pad area are in electrical contact in the first arrangement direction.

In an embodiment, the light-emitting display device further has a first patterned conductive metal seed layer, which is formed on the first surface of the substrate, and has the same pattern as that of the first patterned conductive layer, which serves as the first patterned conductive layer. Preparation layer for formation of conductive layer.

In one embodiment, the light-emitting display device further has a second patterned conductive metal seed layer, which is formed on the second surface of the substrate, and has the same pattern as that of the second patterned conductive layer, which serves as the second patterned conductive layer. Preparation layer for formation of conductive layer.

In each embodiment, the light-emitting element of the light-emitting display device may be a light-emitting diode lamp bead.

In summary, according to the light-emitting display device described in each embodiment of the present creation, the connecting wires corresponding to the pad areas of the pins of the light-emitting element are arranged in layers, so that the power connection wires in the pad area and the pad area are The signal connection wires do not share the same plane configuration space, which is beneficial to increase the plane configuration space of the power connection wires and improve the conductivity of the power connection wires. Since only the power connection wires are arranged on a single side surface of the substrate, the power connection wires can be subdivided into plural equivalent wires with smaller line widths in the enlarged plane configuration space to improve the transparency of the display screen. On the other hand, the lead-out lines of the signal connection wires (that is, the third lead in the embodiment) can be further arranged in layers with an electrical insulating layer, so that these lead-out lines can be overlapped with the power connection wires under electrical isolation. Weaken the visibility of lead-out lines. In addition, the light-emitting element can also use a miniature light-emitting diode chip to reduce the visibility of the light-emitting element itself in the display screen. In this way, in the case where the substrate for the light-emitting element is transparent, the visibility of the wires and the light-emitting element on the substrate in the display screen can be greatly reduced, thereby improving the contrast and contrast of viewing this type of light-emitting display from a certain distance. Clarity. In addition, the materials of the first patterned conductive layer and the second patterned conductive layer can be selected according to different manufacturing processes, which has flexibility in manufacturing process design. For example, the material of the first wire of the first patterned conductive layer can be a slurry doped with conductive powder and can be further added with an electroless plating material, which can be an indium tin oxide (ITO) film with high transparency, fluorine doping The tin oxide (FTO) film, zinc oxide (ZnO) film or aluminum oxide zinc (AZO) film may also be copper, silver, nickel or nickel gold. In the same way, the material of the second wire of the second patterned conductive layer, the extension of the second wire, and the island can be a slurry mixed with conductive powder and can be further added with an electroless plating material, which can be highly transparent The indium tin oxide (ITO) film, the fluorine-doped tin oxide (FTO) film, the zinc oxide (ZnO) film or the aluminum oxide zinc (AZO) film may also be copper, silver, nickel or nickel gold. In this creation, the material of the first patterned conductive layer or the second conductive layer is not limited to the materials mentioned above, and any conductive material such as graphene, carbon nanotube, etc. can also be used.

In order to make the above-mentioned features and advantages of this creation more obvious and understandable, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows.

1: Light-emitting display device

100: substrate

1001: first surface

1002: second surface

1003: Through hole

900: The first patterned conductive metal seed layer

10: The first patterned conductive layer

101: first wire

1011: The first wire in the first extension direction

1012: The first wire in the second extension direction

102: Junction

103: Grid

20: second patterned conductive layer

200: second patterned conductive metal seed layer

201: second wire

202: Extension

203: Island

30: The third patterned conductive layer

301: third wire

40: The first patterned electrical insulating layer

401: The first electrical insulation block

501: The first pad area

502: second pad area

503: third pad area

504: The fourth pad area

60: second patterned electrical insulating layer

601: The second electrical insulation block

70: The third patterned electrical insulating layer

701: Third Electrical Insulation Block

80: Electrical connection material

1000: luminous parts

FIG. 1A is a schematic plan view showing the first patterned conductive layer and its wires of a light-emitting display device according to an embodiment of the invention.

FIG. 1B is a schematic plan view showing other patterned conductive layers and wires of the light-emitting display device according to an embodiment of the invention.

2A is a schematic cross-sectional view showing the A-A cross-section of the light-emitting display device of FIG. 1A in a manufacturing process.

FIG. 2B is a schematic cross-sectional view showing a B-B cross-section of the light-emitting display device of FIG. 1A in a manufacturing process.

2C is a schematic cross-sectional view showing the C-C cross-section of the light-emitting display device of FIG. 1A in a manufacturing process.

FIG. 2D is a schematic cross-sectional view showing the D-D cross-section of the light-emitting display device of FIG. 1A in a manufacturing process.

FIG. 3A is a schematic cross-sectional view showing the A-A cross-section of the light-emitting display device of FIG. 1A in another manufacturing process.

FIG. 3B is a schematic cross-sectional view showing a B-B cross-section of the light-emitting display device of FIG. 1A in another manufacturing process.

FIG. 3C is a schematic cross-sectional view showing the C-C cross-section of the light-emitting display device of FIG. 1A in another manufacturing process.

FIG. 3D is a schematic cross-sectional view showing the D-D cross-section of the light-emitting display device of FIG. 1A in another manufacturing process.

FIG. 4 is a schematic plan view showing the honeycomb-shaped grid wires of the light-emitting display device according to an embodiment of the invention. .

This creation discloses a light-emitting display device. The following narratives are already understood by those of ordinary skill in the art and will not be fully described, such as the light-emitting principle of light-emitting diodes, and layers with specific conductive circuit patterns. A patterned conductive layer with a three-dimensional structure (the line patterns have a height difference between each other). In addition, if the meaning of the technical terms described in the following text is different from the meaning of the usual terms in the technical field, the meaning in the text shall prevail, and the accompanying drawings in the text are intended to express the meaning related to the creative feature , Not drawn completely according to the actual size, but also stated first.

FIG. 1A is a schematic plan view showing the first patterned conductive layer and its wires of a light-emitting display device according to an embodiment of the invention. FIG. 1B is a schematic plan view showing other patterned conductive layers and wires of the light-emitting display device according to an embodiment of the invention. FIG. 2A is a schematic cross-sectional view showing the A-A cross-section of the light-emitting display device of FIG. 1A in a manufacturing process. FIG. 2B is a schematic cross-sectional view showing a B-B cross-section of the light-emitting display device of FIG. 1A in a manufacturing process. 2C is a schematic cross-sectional view showing the C-C cross-section of the light-emitting display device of FIG. 1A in a manufacturing process. FIG. 2D is a schematic cross-sectional view showing the D-D cross-section of the light-emitting display device of FIG. 1A in a manufacturing process.

1A to 2C, in one embodiment, the light-emitting display device 1 has a substrate 100, a first patterned conductive layer 10, a second patterned conductive layer 20, and a third patterned conductive layer disposed on the substrate 100 The layer 30, the first pad area 501, the second pad area 502, the third pad area 503, the fourth pad area 504, and a plurality of light emitting elements 1000 electrically connected to the pad area are electrically isolated from each other. Each pin of each light-emitting element 1000 corresponding to the pad areas 501 to 504 is fixed by an electrical connection material 80 such as solder paste and electrically connected to the corresponding pad areas 501 to 504, wherein the pad area 501 and the light-emitting element The power pins of 1000 constitute electrical connections, and the other pad areas 502, 503, and 504 are respectively constituted with the light-emitting signal pins of the light-emitting element 1000 Electrical connection. The light-emitting element 1000 may be a single light-emitting diode element, a light-emitting diode assembly composed of more than one light-emitting diode, or a light-emitting diode chip, but does not include a driver chip (IC). When the light-emitting element 1000 is a single light-emitting diode, there may be only two bonding pad regions connected to it.

Please continue to refer to FIGS. 1A to 2C. In this embodiment, the substrate 100 has a first surface 1001, a second surface 1002 opposite to the first surface 1001, and a plurality of through holes passing through the first surface 1001 and the second surface 1002. 1003. The through hole 1003 is used to electrically connect the patterned conductive layer on the side of the first surface 1001 of the substrate 100 and the patterned conductive layer on the side of the second surface 1002 of the substrate 100. The substrate 100 is preferably transparent, and its material can be glass, ceramics, aluminum nitride ceramics, polycarbonate, polyethylene terephthalate, polyimide, polymethyl ester, BT resin, glass fiber or cyclic Olefin copolymer. The electrically connected light-emitting elements 1000 are arranged in an array on the same side of the second surface 1002 of the substrate 100, and the minimum distance between the light-emitting elements is not less than 2 mm, preferably 2 to 3 mm, which is different from organic Light-emitting diode (OLED) display or micro-size light-emitting diode (Micro-LED) display.

As shown in FIGS. 1B and 2A to 2D, the first patterned conductive layer 10 is disposed on the first surface 1001 of the substrate 100, and has a plurality of first conductive lines 101 interwoven into a grid shape. The first conductive lines 101 include first The first wire 1011 in the extending direction and the first wire 1012 in the second extending direction, the first extending direction and the second extending direction cross each other. In this embodiment, the shape of the grid interwoven by the first wires 101 with different extension directions is, for example, a rectangle, a hexagon, an ellipse, or a circle. The line width of the first wire 101 is 25 to 100 microns, which is smaller than that of a conventional wire, so as to reduce its visibility in the display screen. As shown in FIGS. 1A and 2A to 2D, the second patterned conductive layer 20 is disposed on the second surface 1002 of the substrate 100, and has at least three linear first that are parallel to each other and equally or unequally spaced apart from each other. Two wires 201, a linear extension 202 connected from each of the second wires 201, and at least one island portion 203 separated from the second wires 201. The third patterned conductive layer 30 is disposed on the second surface 1002 of the substrate 100 but is electrically isolated from the second patterned conductive layer 20 by a first patterned electrically insulating layer 40. The third patterned conductive layer 30 has at least three connected to each of the second conductive lines 201 parallel to each other and equally or unequally spaced apart from each other. The third wire 301 in a linear shape. The extension direction of the third wire 301 and the extension direction of the second wire 201 cross, for example, are perpendicular. The second wires 201 are respectively connected to a bonding pad area via the extension portion 202, and the third wires 301 are extended to be connected to the lighting signal input end of the light-emitting display device. In one embodiment, the extension direction of the extension portion 202 and the extension direction of the second wire 201 cross, for example, are perpendicular, but are parallel to the extension direction of the third wire 301. The island 203 and the second wire 201 are separately arranged blocks separated by a distance. The extending direction of the island 203 is perpendicular to the second surface 1002 of the substrate 100. It can be formed in the same manufacturing process as the second wire 201, or Formed in another process. As shown in FIG. 2B, the island 203 is electrically connected to the junction 102 of the first wire 101 via one of the through holes 1003 of the substrate 100. The junction 102 is the grid node of the first wire 101. The arrangement direction of the second wire 201 and the arrangement direction of the first wire 101 intersect. The line width of the second wire 201 and the extension portion 202 of the second wire 201 is 25 to 100 μm. Optionally, the line width of the second wire 201 and the extension portion 202 of the second wire 201 are the same or different from the line width of the first wire 101.

As shown in FIGS. 1A, 2B, and 2C, the first pad area 501 is disposed on the island 203 of the second patterned conductive layer 20 above the second surface 1002 of the substrate 100, and the second pad area 502, The third pad area 503 and the fourth pad area 504 are respectively disposed on the extension portions 202 of the three adjacent second conductive lines 201 of the second patterned conductive layer 20 above the second surface 1002 of the substrate 100.

1A and 2D, in one embodiment, the light-emitting display device 1 further includes a first patterned electrically insulating layer 40, which is disposed above the second patterned conductive layer 20, and has a plurality of first electrically insulating blocks 401, so that a part of the third wire 301 is located on the first electrically insulating block 401 and is electrically isolated from the second wire 201 and arranged in layers, thereby increasing the second wire 201 in the second patterned conductive layer 20 The configuration space in and the overlapping of the wiring space of the third wire 301 and the wiring space of the first wire 101 to weaken the visibility of the third wire 301 in the display screen.

Please continue to refer to FIG. 1A. In one embodiment, the light-emitting display device 1 further has a second patterned electrically insulating layer 60, and has a plurality of second electrically insulating regions 601. These second electrically insulating regions 601 are divided into Do not arrange on the second surface 1002 of the substrate 100 along the first arrangement direction of the pad areas 501, 502, 503, 504, such as the horizontal direction, to isolate the pad areas 501, 502, 503, 504 from the pad area 501 , 502, 503, 504 in the second arrangement direction, for example, electrical contact in the vertical direction. In another embodiment, the light-emitting display device 1 further has a third patterned electrically insulating layer 70, and has a plurality of third electrically insulating regions 701, and the third electrically insulating regions 701 are respectively along the pad region 501 The second arrangement direction of, 502, 503, 504 is arranged above the second wire 201 connected to the third pad area 503 for example in the vertical direction to isolate the pad areas 501, 502, 503, 504 in the first arrangement direction, for example Electrical contact in the horizontal direction. In other embodiments, the third patterned electrically insulating layer 70 can also be formed in the same process as the second patterned electrically insulating layer 60, so that the third electrically insulating block 701 is disposed in the area connected to the third pad The second wire 201 of 503 is disposed on the second surface 1002 of the substrate 100 below the second wire 201. The above-mentioned second arrangement direction and the first arrangement direction cross each other, for example, are perpendicular to each other. In the embodiment, the first arrangement direction is, for example, parallel to the arrangement direction of the second wire 201 (the horizontal direction shown in FIG. 1A ), and the second arrangement direction is, for example, perpendicular to the arrangement direction of the second wire 201.

Please continue to refer to FIGS. 2A to 2C. In one embodiment, the light-emitting display device 1 further includes a first patterned conductive metal seed layer 900, which is disposed on the first surface 1001 of the substrate 100 and has a first patterned conductive layer The pattern with the same pattern of the first conductive line 101 of 10 is used as a preparation layer for the formation of the first patterned conductive layer 10. In this case, the first conductive line 101 is disposed on the first patterned conductive metal seed layer 900. In addition, the light-emitting display device 1 further includes a second patterned conductive metal seed layer 200, which is disposed on the second surface 1002 of the substrate 100, and has a second conductive line 201, extensions 202, and islands that are connected to the second patterned conductive layer 20. The pattern with the same pattern of the portion 203 is used as a preparation layer for forming the second patterned conductive layer 20. In this case, the second wire 201, the extension portion 202, and the island portion 203 are disposed on the second patterned conductive metal seed layer 200.

FIG. 3A is a schematic cross-sectional view showing the A-A cross-section of the light-emitting display device of FIG. 1A in another manufacturing process. 3B is a schematic cross-sectional view showing the B-B of the light-emitting display device of FIG. 1A in another manufacturing process profile. FIG. 3C is a schematic cross-sectional view showing the C-C cross-section of the light-emitting display device of FIG. 1A in another manufacturing process. FIG. 3D is a schematic cross-sectional view showing the D-D cross-section of the light-emitting display device of FIG. 1A in another manufacturing process.

Please refer to FIGS. 1A, 1B, and 3A to 3D at the same time. In another manufacturing process, the difference from the above-mentioned embodiment is that although the light-emitting display device 1 has the first patterned conductive metal seed layer 900, it does not have the second pattern化conductive metal seed layer 200. Other elements are the same as the previous embodiment.

FIG. 4 is a schematic plan view showing the honeycomb-shaped grid wires of the light-emitting display device according to an embodiment of the invention. In the foregoing embodiment, the shape of the grid 103 formed by the first conductive lines 101 of the first patterned conductive layer 10 in a mesh shape may be hexagonal, such as a honeycomb shape, thereby improving the conductive efficiency of the first conductive lines.

In the foregoing embodiment, although the third patterned conductive layer 30 and the second patterned conductive layer 20 are disposed on the second surface 1002 of the substrate 100, the present invention is not limited to this. In other embodiments, the third pattern The conductive layer 30 may also be disposed on the first surface 1001 of the substrate 100 and electrically isolated from the first patterned conductive layer 10. In other words, as long as the first patterned conductive layer 10, the second patterned conductive layer 20, and the third patterned conductive layer 30 can be electrically isolated from each other, the layered arrangement sequence on the substrate 100 can be changed according to the situation to meet The best configuration relationship and minimum visibility requirements. In addition, the wires or extensions or islands on each patterned conductive layer can also be arranged in layers, as long as the first wire is connected to the pad area of the power pin of the light-emitting element, and the extension of the second wire is connected to the light-emitting element. For the electrical connection relationship between the pad areas of the other pins and the second wires connected to the third wires, this creation does not limit the layered configuration.

In summary, according to the light-emitting display device described in each embodiment of the present creation, the connecting wires corresponding to the pad areas of the pins of the light-emitting element are arranged in layers, so that the power connection wires in the pad area and the pad area are The signal connection wires do not share the same plane configuration space, which is beneficial to increase the plane configuration space of the power connection wires and improve the conductivity of the power connection wires. Since only the power connection wires are arranged on a single side surface of the substrate, the power connection wires can be subdivided into plural numbers in the enlarged plane configuration space Equivalent wire with a smaller line width to improve the transparency of the display screen. On the other hand, the lead-out lines of the signal connection wires (that is, the third lead in the embodiment) can be further arranged in layers with an electrical insulating layer, so that these lead-out lines can be overlapped with the power connection wires under electrical isolation. Weaken the visibility of lead-out lines. In addition, the light-emitting element can also use a miniature light-emitting diode chip to reduce the visibility of the light-emitting element itself in the display screen. In this way, in the case where the substrate for the light-emitting element is transparent, the visibility of the wires and the light-emitting element on the substrate in the display screen can be greatly reduced, thereby improving the contrast and contrast of viewing this type of light-emitting display from a certain distance. Clarity. In addition, the materials of the first patterned conductive layer and the second patterned conductive layer can be selected according to different manufacturing processes, which has flexibility in manufacturing process design. For example, the material of the first wire of the first patterned conductive layer can be a slurry doped with conductive powder and can be further added with an electroless plating material, which can be an indium tin oxide (ITO) film with high transparency, fluorine doping The tin oxide (FTO) film, zinc oxide (ZnO) film or aluminum oxide zinc (AZO) film may also be copper, silver, nickel or nickel gold. In the same way, the material of the second wire of the second patterned conductive layer, the extension of the second wire, and the island can be a slurry mixed with conductive powder and can be further added with an electroless plating material, which can be highly transparent The indium tin oxide (ITO) film, the fluorine-doped tin oxide (FTO) film, the zinc oxide (ZnO) film or the aluminum oxide zinc (AZO) film may also be copper, silver, nickel or nickel gold. In this creation, the material of the first patterned conductive layer or the second conductive layer is not limited to the materials mentioned above, and any conductive material such as graphene, carbon nanotube, etc. can also be used.

The above description should be understood and implemented for ordinary knowledgeable persons in the technical field to which this creation belongs. Some embodiments of this creation are disclosed above, but they are not used to limit this creation. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of this creation. In other words, other equivalent embodiments completed without departing from the spirit of this creation should be included in this creation, and the scope of protection of this creation shall be subject to the scope of the patent application attached hereafter.

1: Light-emitting display device

100: substrate

1001: first surface

1002: second surface

1003: Through hole

900: The first patterned conductive metal seed layer

101: first wire

102: Junction

200: second patterned conductive metal seed layer

202: Extension

203: Island

501: The first pad area

502: second pad area

80: Electrical connection material

1000: luminous parts

Claims (10)

A light-emitting display device includes: A substrate having a first surface and a second surface opposite to the first surface, the substrate having a plurality of through holes; A first patterned conductive layer disposed on the first surface of the substrate and having a plurality of first conductive lines interwoven into a grid; A second patterned conductive layer is disposed on the second surface of the substrate, and has at least three linear second wires that are parallel to each other and are equally or unequally spaced apart from each other, and are connected from each of the second wires The linear extension and at least one island separated from the second wires, the arrangement direction of the extensions and the arrangement direction of the second wires intersect, and the islands pass through the through holes. One is electrically connected to the junction of the first wires; A first pad area, a second pad area, a third pad area, and a fourth pad area are electrically isolated from each other, the first pad area is disposed on the island, and the second pad area The pad area, the third pad area and the fourth pad area are respectively disposed on the extension portions; and A plurality of light-emitting elements are arranged in an array on the same side of the second surface of the substrate, with a minimum distance of 2 to 3 mm between each other, and four different pins of at least one of the light-emitting elements are respectively connected to the first The solder pad area, the second solder pad area, the third solder pad area, and the fourth solder pad area. Such as the light-emitting display device of claim 1, wherein the line width of each of the first conductive lines and each of the second conductive lines is 25 micrometers to 100 micrometers. Such as the light-emitting display device of claim 1, wherein the grid shape of the first conductive lines is one of a rectangle, a circle, an ellipse, and a hexagon. For example, the light-emitting display device of claim 1, further including: A third patterned conductive layer, disposed on the second surface of the substrate and electrically isolated from the second patterned conductive layer, has at least three parallel and equidistant or equal distances from each other connected to each of the second conductive lines Line-shaped third wires spaced at unequal intervals, the extending directions of the third wires and the second wires cross, and the third wires are extended to connect to the lighting signal input of the light-emitting display device end. For example, the light-emitting display device of claim 4 further includes: A first patterned electrically insulating layer has a plurality of first electrically insulating areas, which are arranged between the second patterned electrically conductive layer and the third patterned electrically conductive layer, and the first electrically insulating areas make The third wires are electrically isolated from the second wires. For example, the light-emitting display device of claim 1, further including: A second patterned electrically insulating layer has a plurality of second electrically insulating areas, and the second electrically insulating areas are respectively along the first pad area, the second pad area, and the third pad area. A first arrangement direction of the pad area and the fourth pad area is configured on the second surface of the substrate to isolate the first pad area, the second pad area, the third pad area and The fourth pad area is electrically contacted in a second arrangement direction, and the second arrangement direction crosses the first arrangement direction. For example, the light-emitting display device of claim 6, further including: A third patterned electrical insulation layer has a plurality of third electrical insulation areas, and the third electrical insulation areas are respectively along the first pad area, the second pad area, and the third solder pad area. The second arrangement direction of the pad area and the fourth pad area is arranged above the second wire connecting the third pad area to isolate the first pad area, the second pad area, and the The third pad area and the fourth pad area are in electrical contact in the first arrangement direction. For example, the light-emitting display device of claim 1, further including: A first patterned conductive metal seed layer formed on the first surface of the substrate, having the same pattern as that of the first patterned conductive layer, used as a preparation layer for the formation of the first patterned conductive layer . For example, the light-emitting display device of claim 8, further including: A second patterned conductive metal seed layer, formed on the second surface of the substrate, having the same pattern as that of the second patterned conductive layer, used as a preparation layer for the second patterned conductive layer . The light-emitting display device according to any one of claims 1 to 9, wherein the light-emitting elements are light-emitting diode lamp beads.

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