TWI637507B - Narrow-framed organic light-emitting diode display - Google Patents

Abstract

A narrow-frame organic light-emitting diode display comprises a substrate having an effective display area and a trace area, a plurality of first axial electrodes respectively corresponding to the effective display area of the substrate, and a plurality of second axial directions An electrode, a plurality of organic illuminants, an insulating layer, and a plurality of bridge wires, and a plurality of first scan wires and a plurality of second scan wires both located in the routing region of the substrate. The present invention utilizes each of the bridge wires to extend only through the lower side of the effective display area to the trace area and is used to connect the respective first axial electrodes with the respective first scan lines, and each second scan The wire is routed on the lower side of the effective display area and connected to the respective second axial electrodes, so as to improve the width of the left and right sides of the observation surface of the existing display, the width of the wire area cannot be reduced. The shortcomings, so it is possible to further achieve the purpose of reducing the width of the border.

Description

Narrow-framed organic light-emitting diode display

The invention relates to a display, in particular to a narrow-frame organic light-emitting diode display.

A conventional passive matrix OLED (PMOLED) will have a plurality of anode scan lines and a plurality of cathode scan lines along a first horizontal direction orthogonal to each other. The two horizontal directions extend beyond an active display area, and are electrically connected to the driving IC through a plurality of contact nodes and a plurality of scanning signal lines located outside the left and right sides of the effective display area. In recent years, as the mainstream of display design has progressed toward a narrow border (Narrow Border), the existing method of achieving a narrow border by "reducing the line width of the wire" and "reducing the distance between the two wires" has the following disadvantages:

First, excessive reduction of wire width will increase the resistance of the wire itself, and will also lead to the problem of reduced yield.

Second, excessively reducing the spacing between the two wires will increase the risk of shorting the two adjacent wires.

Therefore, another wiring technique which is vertically stacked by a wire is proposed, such as a display disclosed in Taiwan Patent No. M518823, but since the plurality of scanning signal lines of the patent are still used adjacent to the layout of the wiring, The left and right sides of the effective display area, that is, the two sides of the substrate of the patent still have a certain width of the routing area, and the outer frame edge of the substrate and the effective display area cannot be further reduced. The spacing makes the narrow bezel development technology face another bottleneck.

Accordingly, it is an object of the present invention to provide an organic light emitting diode display having a narrow bezel that further reduces the pitch of the bezel.

Therefore, the narrow-frame organic light-emitting diode display of the present invention comprises a substrate, a plurality of first axial electrodes, a plurality of second axial electrodes, an insulating layer, a plurality of organic light-emitting bodies, a plurality of first scanning wires, a plurality of second scanning wires, a plurality of bridge wires, and a driving member.

A first horizontal direction, a second horizontal direction and a vertical direction orthogonal to each other are defined. The substrate sequentially includes an effective display area along the second horizontal direction, and a routing area connecting one side of the effective display area.

The first axial electrodes correspond to the effective display area of the substrate and are spaced apart along the second horizontal direction. Each of the first axial electrodes extends in the first horizontal direction and has a main bridge.

The second axial electrodes correspond to the effective display area of the substrate. The second axial electrodes are spaced apart along the first horizontal direction. Each of the second axial electrodes extends in the second horizontal direction.

The insulating layer is located in the effective display area of the substrate and forms a plurality of through holes extending in the vertical direction, and includes a plurality of first body portions spaced along the first horizontal direction and extending along the second horizontal direction And connecting a plurality of second body portions between each two adjacent first body portions, wherein the first body portions cooperate with the second body portions to define a plurality of accommodating spaces arranged in a matrix.

The organic illuminants are respectively accommodated in the accommodating spaces. Each of the organic light emitters has a first contact surface connected to the respective first axial electrodes and a second contact surface connected to the respective second axial electrodes.

The first scan wires are spaced apart from the trace region of the substrate and extend toward the effective display region, and the first scan wires are electrically connected to the first axial electrodes, respectively.

The second scan wires are spaced apart from the trace area of the substrate, and are spaced apart from the first scan lines and extend toward the effective display area. The second scan lines are respectively one-to-one and the first The two axial electrodes are electrically connected.

Each of the bridge wires has a first line segment adjacent to the respective through holes and connected to the main bridge portion of the respective first axial electrodes, and a first line segment connected to the second horizontal direction Extending to a second line segment of the routing area of the substrate, the second line segment of each of the bridging conductors is coupled to the respective first line segment and the respective first scan line.

The driving component is electrically connected to the first scanning wires and the second scanning wires, and is configured to drive the organic light emitters to emit light.

The utility model has the advantages that the design of each of the bridge wires extends only to the lower side of the effective display area and extends to the line area, so that the left and right sides of the existing display still need to maintain a certain width of the line area. However, it is impossible to effectively reduce the defect of the wiring area, so it is indeed possible to further reduce the width of the frame.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals. In addition, dimensions such as thickness and length shown in the drawings are different from actual items.

Referring to Figures 1, 2, and 3, a first embodiment of the narrow-frame organic light-emitting diode display of the present invention defines a first horizontal direction X, a second horizontal direction Y, and a vertical direction Z which are orthogonal to each other. The narrow-frame organic light-emitting diode display comprises a substrate 1, a plurality of first axial electrodes 21, a plurality of second axial electrodes 31, a plurality of organic light-emitting bodies 41, an insulating layer 5, and a plurality of first scans. The wire 61, the plurality of bridge wires 71, the plurality of second scanning wires 81, a plurality of spacers (Rib) 9 spaced apart from each other on the upper side of the insulating layer 5, and a driver IC 91.

The substrate 1 sequentially includes an effective display area 11 along the second horizontal direction Y, and a routing area 12 connecting one side of the effective display area 11, one surrounding the routing area 12 and the effective display area 11 Frame edge 13. The effective display area 11 of the substrate 1 has two first edge lines 111 which are oppositely disposed and both extend along the second horizontal direction Y. The outer frame side 13 of the substrate 1 has two opposite arrangements and both along the first A second edge 131 extending in the horizontal direction Y.

The first axial electrodes 21 correspond to the effective display regions 11 of the substrate 1 and are arranged at intervals along the second horizontal direction Y. Referring to FIG. 1, the first axial electrodes 21 are disposed on the top surface of the substrate 1.

Referring to FIGS. 2, 5, and 6, each of the first axial electrodes 21 extends along the first horizontal direction X and has a main bridge portion 211, and two opposite sides of the main bridge portion 211 are respectively connected along the first In the present embodiment, each of the first axial electrodes 21 is a transparent conductive oxide (TCOs) electrode, for example, indium tin oxide (Indium Tin Oxide). ), zinc tin oxide (Znic Tin Oxide), indium zinc oxide (Indium Znic Oxide), and the like.

Referring to Figures 1, 2, 3 and 4, the second axial electrodes 31 correspond to the effective display area 11 of the substrate 1. The second axial electrodes 31 are spaced apart in the first horizontal direction X. Each of the second axial electrodes 31 extends in the second horizontal direction Y. In this embodiment, each of the second axial electrodes 31 is a metal electrode, such as magnesium (Mg), aluminum (Al), magnesium-silver alloy (Mg-Ag), lithium (Li), which can be a low work function, and Calcium (Ca) and the like.

Referring to FIG. 1 , the organic light emitters 41 are located in the effective display area 11 of the substrate 1 and disposed between the first axial electrodes 21 and the second axial electrodes 31 . Each of the organic light-emitting bodies 41 has a first contact surface 411 connected to the respective first axial electrodes 21, and a second contact surface 412 connected to the respective second axial electrodes 31. Since the selection of the formulation composition of the organic illuminants 41 is not the technical focus of the present invention, it will not be described herein.

Referring to FIGS. 1, 2, 3, and 4, the insulating layer 5 corresponds to the effective display region 11 of the substrate 1 and defines a plurality of through holes 511 extending in the vertical direction Z. The insulating layer 5 has a lattice shape and serves to partition the organic light-emitting bodies 41. The insulating layer 5 includes a plurality of first body portions 51 arranged along the first horizontal direction X and extending along the second horizontal direction Y, and a plurality of second connecting between each two adjacent first body portions 51. The body portion 52. The first body portion 51 cooperates with the second body portions 52 to define a plurality of accommodating spaces 53 arranged in a matrix. Referring to Figures 2, 5 and 6, each of the through holes 511 has a main communication area 512 corresponding to the respective main bridge portion 211, and two sub-connection areas 513 respectively corresponding to the sub-bridge portions 212, each of which The main communication region 512 of the through hole 511 and the secondary communication region 513 communicate with each other. The accommodating spaces 53 of the insulating layer 5 are respectively accommodated by the organic illuminants 41.

Referring to FIGS. 1 and 2, the first scan wires 61 are electrically connected to the first axial electrodes 21, and the first scan wires 61 are spaced apart from the trace region 12 of the substrate 1. The first scan wires 61 all extend toward the effective display area 11. Each of the first scanning wires 61 may, but need not, be a copper metal.

Referring to Figures 2, 5, and 6, each of the bridge wires 71 has a first line segment 711 adjacent to the respective through hole 511, and a first wire segment 711 is coupled to the first wire segment 711 and extends along the second horizontal direction Y. A second line segment 712 of the routing region 12 of the substrate 1. The first line segment 711 of each of the bridging wires 71 is connected to the main bridge portion 211 of the first axial electrode 21, and each of the second line segments 712 is connected to the respective first line segment 711 with the shortest routing path. The respective first scan wires 61. In the present embodiment, each of the bridging wires 71 can be made of copper metal without limitation. The first line segment 711 of each of the bridging wires 71 extends into the main communication region 512 of the through hole 511 and the sub-connecting region 513, thereby causing the first line segment 711 of each of the bridging wires 71. The main bridge portion 211 of the first axial electrode 21 and the second bridge portion 212 are electrically connected to each other, and the second line segment 712 of each of the bridge wires 71 is disposed along the respective first body portion 51.

Referring to Figures 1, 2, 3, and 5, the narrow-framed organic light-emitting diode display of the present invention further includes a plurality of blocking insulators 510 for preventing the corresponding bridge wires 71 from being short-circuited with the adjacent cathodes 31, specifically Each of the barrier insulating bodies 510 may cover the corresponding through hole 511 and the corresponding second line segment 712 of the bridge wire 71, or the isolation barrier body 510 covers only the through holes 511, respectively. It is also possible that the barrier insulating bodies 510 extend from each other and are joined into a layer having a plurality of spaces, and the layer is directly covered on the insulating layer 5.

Referring to FIGS. 1 and 2, the second scan wires 81 are electrically connected to the second axial electrodes 31, and the second scan wires 81 are spaced apart from the trace region 12 of the substrate 1. The second scan wires 81 are spaced apart from the first scan wires 61 and both extend toward the effective display region 11. The second scanning wires 81 may, but need not, be copper metal.

Referring to Figures 1, 3 and 4, each of the barrier members 9 extends in the second horizontal direction Y and serves to separate two adjacent second axial electrodes 31. In actual production, the material of each of the barrier members 9 may be a negative photoresist, so that under-cutting is more easily formed during the yellow light developing operation, so that the cross-section of each of the barrier members 9 is wide. Narrow.

Referring to FIG. 2, a plurality of pins (not shown) of the driver IC 91 are electrically connected to the first scan wires 61 and the second scan wires 81, and the driver 91 provides a potential difference. Between the first scan wires 61 and the second scan line wires 81, the organic light-emitting bodies 41 are driven to emit light.

Referring to FIGS. 2, 5, and 6, the present invention extends the configuration relationship between the necessary components disclosed above, that is, each of the bridge wires 71 is routed through the lower side of the effective display area 11 to the trace area 12, Thereby, each of the bridge wires 71 is connected to the respective first axial electrodes 21 and the respective first scan wires 61, and each of the second scan wires 81 is only routed through the lower side of the effective display region 11 and The design of the connection of the second axial electrodes 31 allows the present invention to achieve the purpose of reducing the width of the frame. It should be noted that, according to the existing process capability, the distance between each second edge 131 of the substrate 1 of the present invention and its adjacent first edge 111 is L mm, and satisfies 0.1≦L≦1. For example, if a cover and getter package process is used, since a seal must be applied around the effective display area 11, the L value may be at least 0.5; if a film package process is used; Or a pressure-sensitive adhesive packaging process, a passivation layer is used instead of a getter to reduce the damage of the organic light-emitting body 41 by water vapor, and thus it is not necessary to apply a sealant around the effective display area 11. Rather, the cover plate (such as glass or flexible plastic film) is directly combined with the substrate 1 through the adhesive layer to complete the packaging operation, so the L value can be further reduced to 0.1, which also indicates The passivation layer described in this paragraph may, but need not be limited, a Si compound such as SiN _x , SiO _x , SiN _x O _y , or an Al compound such as Al ₂ O ₃ or AlN _x , or ZnO _x , The Zn compound such as ZnN _x is not the focus of the present invention because the material composition of the passivation layer is not selected.

In addition, referring to FIGS. 2, 3, 5, and 6, each of the through holes 511 extends along the first horizontal direction X corresponding to the side edge of the first axis electrode 21, thereby providing the first line of each of the bridge wires 71. The segment 711 is connected to the routing design of the main bridge portion 211 of the first axial electrode 21 and the secondary bridge portion 212 to obtain a higher aperture ratio and, in addition, maintain a higher opening. At the same time, the line impedance value can also be reduced by increasing the area in which the first line segment 711 of each of the bridge wires 71 contacts the respective first axial electrodes 21.

It should be understood that the second line segment 712 of each of the bridge wires 71 of the present invention is connected to the respective first line segment 711 and the respective first scan wire 61 by the shortest trace path, and each second The scanning wire 81 is also a wiring layout in which the respective second axial electrodes 31 are connected substantially in the shortest routing path. The present invention can be shortened in a large amount compared to the conventional display using the left and right double-sided routing layout. In addition to the overall routing distance and the advantage of reducing the overall line resistance value, the overall structure of the present invention can also help maintain process yield.

Referring to Figures 7, 8, 9, and 10, a second embodiment of the narrow-frame organic light-emitting diode display of the present invention is similar to the first embodiment, the second embodiment and the second embodiment The main differences of the first embodiment are:

The first axial electrodes 21 are all disposed on the top surface of the substrate 1. In the present embodiment, each of the through holes 511 of the insulating layer 5 does not have a secondary communication region 513 extending in the first horizontal direction X (ie, each of the through holes 511 has only the primary communication region 512).

Referring to Figures 8, 9, and 11, the first line segment 711 of each of the bridge wires 71 extends into the respective through holes 511 and is electrically connected to the main bridge portion 211 of the first axial electrode 21, The second line segment 712 of a bridging wire 71 is disposed along the respective first body portion 51.

As such, the second embodiment can achieve the same objects and effects as the first embodiment described above.

12, 13, 14, and 15 are a third embodiment of a narrow-frame organic light-emitting diode display according to the present invention. The third embodiment is similar to the first embodiment, and the third embodiment The main differences of the first embodiment are:

The second axial electrodes 31 are all disposed on the top surface of the substrate 1. Each of the second axial electrodes 31 is a transparent conductive oxide electrode, and each of the first axial electrodes 21 is a metal electrode.

In the present embodiment, each of the through holes 511 of the insulating layer 5 does not have a secondary communication region 513 extending in the first horizontal direction X (ie, each of the through holes 511 has only the primary communication region 512).

Referring to FIGS. 13 , 16 , and 17 , each of the first axial electrodes 21 and the first line segments 711 of the respective bridge wires 71 are electrically connected to each other via the corresponding through holes 511 . Of course, the first line segment 711 of each of the bridge wires 71 may be electrically connected to the respective first axial electrodes 21 in such a manner as to extend into the respective through holes 511. The second line segment 712 of each of the bridging wires 71 is disposed along the respective first body portion 51.

Referring to FIG. 12, each of the barrier members 9 extends in the first horizontal direction X and serves to separate two adjacent first axial electrodes 21. Each of the barrier members 9 has a cross section that is wide and narrow.

As such, the third embodiment can achieve the same objects and effects as the first embodiment described above.

18, 19, 20, and 21 are a fourth embodiment of a narrow-frame organic light-emitting diode display according to the present invention. The fourth embodiment is similar to the first embodiment, and the fourth embodiment The main differences of the first embodiment are:

Each of the first axial electrodes 21 further has a conductive transparent oxide layer 213 extending along the first horizontal direction X, and a conductive metal extending along a side of the conductive transparent oxide layer 213 and extending along the first horizontal direction X. Layer 214. The main bridge portion 211 and the second bridge portion 212 of each of the axial electrodes 21 are located on the respective conductive metal layers 214, and the first line segment 711 of each of the bridge wires 71 passes through the corresponding through hole 511. The conductive metal layer 214 is electrically connected to the corresponding one. In this embodiment, the conductive transparent oxide layer 213 of each of the first axial electrodes 21 can be a transparent conductive oxide such as indium tin oxide, zinc tin oxide or indium zinc oxide. The conductive metal layer 214 of each of the first axial electrodes 21 can be a metal such as Cr, Mo, Al, Ag alloy, Mo alloy and Cu. Preferably, the conductive metal layer 214 of each of the first axial electrodes 21 has a first conductive portion 215 disposed on the top surface of the substrate 1 and connected to the conductive transparent oxide layer 213, and a first conductive portion 215 extending from the first conductive portion 215 to the corresponding top surface of the conductive transparent oxide layer 213 Two conductive portions 216.

It should be noted that, in this embodiment, each of the first axial electrodes 21 is composed of the conductive metal layer 214 and the conductive transparent oxide layer 213, compared to each of the first axial electrodes 21 In terms of structural design of the conductive transparent oxide layer 213, in addition to maintaining a certain aperture ratio, the first line segment 711 of each bridge wire 71 and the respective first axis electrode 21 are facilitated in manufacturing. The main bridge portion 211 and the sub-bridge portions 212 are in contact with each other, so that the probability of disconnection can be reduced and the overall process yield can be improved. In addition, the conductive metal layer 214 of each of the first axial electrodes 21 has the first conductive portion 215, and the first conductive portion 215 is designed to extend along the second horizontal direction Y, and each bridge can be additionally added. The area of the first line segment 711 of the wire 71 and the main bridge portion 211 of the first axial electrode 21 and the secondary bridge portion 212 contact each other, thereby reducing the resistance value of current flowing through the interface.

Thus, the fourth embodiment can achieve the same objects and effects as the first embodiment described above.

In summary, the narrow-frame organic light-emitting diode display of the present invention uses only each of the bridge wires 71 to be routed to the lower side of the effective display area 11 and is used to connect the respective first axial electrodes 21 and their respective The first scan wire 61 and each of the second scan wires 81 are routed on the lower side of the effective display area 11 to be connected to the respective second axial electrodes 31 to improve the left and right sides of the existing display. It is necessary to maintain a certain width of the wiring area, and it is not possible to effectively reduce the defect of the wiring area, so the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧Substrate

11‧‧‧effective display area

111‧‧‧First line

12‧‧‧Drop area

13‧‧‧Outer frame

131‧‧‧Second line

21‧‧‧First axial electrode

211‧‧‧Main Bridge

212‧‧ ‧ bridges

213‧‧‧ Conductive transparent oxide layer

214‧‧‧ Conductive metal layer

215‧‧‧First Conductive Department

216‧‧‧Second Conductive Department

31‧‧‧Second axial electrode

41‧‧‧Organic emitters

411‧‧‧ first contact surface

412‧‧‧Second contact surface

5‧‧‧Insulation

51‧‧‧First Body Department

510‧‧‧Isolated barrier

511‧‧‧through holes

512‧‧‧Main connected area

513‧‧‧ connected areas

52‧‧‧Second body

53‧‧‧ accommodating space

61‧‧‧First scan wire

71‧‧‧Bridge wire

711‧‧‧First line

712‧‧‧second line

81‧‧‧Second scan wire

9‧‧‧Resistance

91‧‧‧ drive parts

X‧‧‧first horizontal direction

Y‧‧‧second horizontal direction

Z‧‧‧Vertical direction

L‧‧‧ spacing

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is an incomplete perspective view illustrating a first embodiment of a narrow-frame organic light-emitting diode display of the present invention. 2 is a top plan view of the first embodiment; FIG. 3 is a schematic view showing a view taken along the line III-III of FIG. 2; FIG. 4 is a schematic view, and FIG. Figure 4 is a schematic view showing a view taken along the line direction of VV in Fig. 2; Fig. 6 is a schematic view showing a line along VI-VI in Fig. 2 Figure 7 is a fragmentary perspective view showing a second embodiment of a narrow-frame organic light-emitting diode display of the present invention; Figure 8 is a top plan view of the second embodiment; Figure 9 It is a schematic view showing a view taken along a straight line direction of IX-IX in Fig. 8; Fig. 10 is a schematic view showing a view taken along a straight line direction of XX in Fig. 8; Fig. 11 is a view BRIEF DESCRIPTION OF THE DRAWINGS FIG. 12 is a perspective view showing a third embodiment of a narrow-frame organic light-emitting diode display according to the present invention; FIG. Is a top view of the third embodiment; Fig. 14 is a schematic view showing a view taken along the line XIV-XIV of Fig. 13; Fig. 15 is a schematic view showing the XV-XV of Fig. 13 View taken in the direction of the straight line; Fig. 16 is a schematic view showing the view taken along the line direction of XVI-XVI in Fig. 13; Fig. 17 is a schematic view showing the direction taken along the line XVII-XVII in Fig. 13 Figure 18 is a fragmentary perspective view showing a fourth embodiment of a narrow-frame organic light-emitting diode display of the present invention; Figure 19 is a top plan view of the fourth embodiment; Figure 20 is a schematic view The description is taken along the direction of the straight line of XX-XX in Fig. 19; and Fig. 21 is a schematic view showing the view taken along the straight line direction of XXI-XXI in Fig. 19.

Claims (8)

A narrow-frame organic light-emitting diode display comprising: a substrate defining a first horizontal direction orthogonal to a second horizontal direction and a vertical direction, the substrate sequentially including an effective portion along the second horizontal direction a display area, and a routing area connecting one side of the effective display area; a plurality of first axial electrodes corresponding to the effective display area of the substrate, and spaced along the second horizontal direction, each first The axial electrode extends along the first horizontal direction and has a main bridge portion; a plurality of second axial electrodes corresponding to the effective display area of the substrate, the second axial electrodes are arranged along the first horizontal direction Each of the second axial electrodes extends along the second horizontal direction; an insulating layer corresponding to the effective display area of the substrate and forming a plurality of through holes extending in the vertical direction, and including a plurality of along the first a first body portion spaced apart in the horizontal direction and extending in the second horizontal direction, and a second body portion connecting each of the two adjacent first body portions with the plurality of first body portions The second body portions cooperate to define a plurality of accommodating spaces arranged in a matrix; a plurality of organic illuminants respectively received in the accommodating spaces, each of the organic illuminants having a first axis and a respective one of the first axes a first contact surface connected to the electrode, and a second contact surface connected to the respective second axial electrode; a plurality of first scanning wires spaced apart from the routing area of the substrate, and both being effective The display area extends, the first scan wires are electrically connected to the first axial electrodes, respectively, and the plurality of second scan lines are spaced apart from the trace area of the substrate and spaced apart from the first scan lines And extending to the effective display area, the second scan wires are respectively electrically connected to the second axial electrodes; a plurality of bridge wires, each of the bridge wires having a adjacent one of the through holes and the respective ones a first line segment connecting the main bridge portion of the first axial electrode, and a second line segment connecting the first line segment and extending along the second horizontal direction to the wiring area of the substrate, each of the bridge wires The second line segment Connected to each of the first segment of each of the first scan and the wire; and a driving member, connected to the plurality of first scan and the second scan wires electrical conductor such, and configured to drive the organic light emitting material to emit light. The narrow-frame organic light-emitting diode display of claim 1, wherein any two main bridges are staggered along the first horizontal direction. The narrow-frame organic light-emitting diode display of claim 1, wherein the second axial electrodes are disposed on a top surface of the substrate, and each of the first axial electrodes and the first bridge wire A line segment is electrically connected to each other via the corresponding through hole, and the second line segment of each of the bridge wires is disposed along the respective first body portion. The narrow-frame organic light-emitting diode display of claim 1, wherein the first axial electrodes are disposed on a top surface of the substrate, and the first line segment of each of the bridge wires extends into the respective one The through holes are electrically connected to the main bridge portions of the respective first axial electrodes, and the second line segments of each of the bridge wires are disposed along the respective first body portions. The narrow-frame organic light-emitting diode display of claim 4, wherein each of the first axial electrodes further has two opposite sides that are respectively connected to the opposite sides of the main bridge and extend in the first horizontal direction. a bridge portion, each through hole of the insulating layer has a main communication region corresponding to the respective main bridge portion, and two sub-connecting regions respectively corresponding to the second bridge portions, the main communication of each of the through holes And the sub-connecting regions are connected to each other, and the first line segment of each of the bridging wires extends into the main connecting region of the through-hole and the sub-connecting region, the first segment of each bridging wire The main bridges of the respective first axial electrodes are electrically connected to the secondary bridges. The narrow-frame organic light-emitting diode display of claim 5, wherein each of the first axial electrodes further has a conductive transparent oxide layer extending along the first horizontal direction, and one of the conductive transparent oxides is connected a conductive metal layer extending on one side of the layer and extending along the first horizontal direction, the main bridge portion and the secondary bridge portion of each of the axial electrodes are located in the respective conductive metal layers, and the first line of each of the bridge wires The segment is electrically connected to the corresponding conductive metal layer via the corresponding through hole. The narrow-frame organic light-emitting diode display of claim 6, wherein the conductive metal layer of each of the first axial electrodes has a top surface of the substrate and is connected to the respective conductive transparent oxide layer. a first conductive portion, and a second conductive portion extending from the first conductive portion to the corresponding top surface of the conductive transparent oxide layer. The narrow-frame organic light-emitting diode display according to any one of claims 1 to 7, wherein the effective display area of the substrate has two first sides that are oppositely disposed and each extend in the second horizontal direction. a substrate, the substrate further includes an outer frame side surrounding the wire area and the effective display area, the outer frame side having two second side lines disposed opposite to each other and extending along the second horizontal direction, each second side line The distance between the first edge line adjacent thereto is L mm, and 0.1 ≦L ≦1.