KR102648794B1 - Organic light emitting display device - Google Patents

Abstract

The present invention provides a flexible display panel including pixels; a printed circuit board located on one side of the flexible display panel; and a connection wire located on the flexible display panel, extending in a first direction to electrically connect the pixel and the printed circuit board, wherein the connection wire includes first and A second connection, first and second branch lines branching from the first connection, third and fourth branch lines branching from the second connection and connected to the first and second branch lines, respectively, and intersecting the first direction. An organic light emitting display device including intersecting lines extending in a second direction is provided.

Description

Organic light emitting display device {ORGANIC LIGHT EMITTING DISPLAY DEVICE}

The present invention relates to an organic light emitting display device, and more specifically, to an organic light emitting display device having a narrow bezel without disconnected signal wires.

Recently, as we entered the full-fledged information age, the field of displays that visually express electrical information signals has developed rapidly, and in response to this, a variety of display devices with excellent performance such as thinner, lighter, and lower power consumption have been developed. has been developed and is rapidly replacing the existing cathode ray tube (CRT).

Specific examples of such display devices include liquid crystal display (LCD), organic light emitting display (OLED), electro-luminescent display, electrophoretic display (EPD), and electrowetting display (EWD). can be mentioned. In particular, organic light emitting display devices are next-generation display devices with self-luminous properties, and have superior characteristics compared to liquid crystal displays in terms of viewing angle, contrast, response speed, and power consumption.

Recently, organic light emitting display devices, which are manufactured by forming a display portion and wiring on a flexible substrate such as plastic, a flexible material, to enable image display even when it is bent like paper, are attracting attention.

While manufacturing organic light emitting display devices using flexible substrates, securing the flexibility of the substrate, various insulating layers formed on the substrate, and wiring formed of metal materials has become an important task. 1 is a plan view of a conventional display device.

As shown in FIG. 1, a conventional display device 1 includes a display panel 10 and a printed circuit board 20 connected to one end of the display panel 10.

The display panel 10 includes a plurality of pixels (P), and a substrate (not shown) of the display panel 10 has connection wires 30 connecting the pixels (P) and the printed circuit board 20. ) is formed.

A chip 22 is mounted on the printed circuit board 20, and the chip 22 may be electrically connected to the connection wire 30.

At this time, if the connection wire 30 is damaged, an electrical signal cannot be applied to the pixel P, causing a problem in driving the pixel P.

Additionally, a problem occurs in which the bezel area of the display device 1 increases due to the printed circuit board 20.

The present invention seeks to solve the problem of poor driving caused by damage to connection wiring and the problem of increased bezel area in organic light emitting display devices.

To solve this problem, the present invention provides a flexible display panel including pixels; a printed circuit board located on one side of the flexible display panel; and a connection wire located on the flexible display panel, extending in a first direction to electrically connect the pixel and the printed circuit board, wherein the connection wire includes first and A second connection, first and second branch lines branching from the first connection, third and fourth branch lines branching from the second connection and connected to the first and second branch lines, respectively, and intersecting the first direction. An organic light emitting display device including intersecting lines extending in a second direction is provided.

In the organic light emitting display device according to the present invention, the connection wiring connecting the pixel of the display panel and the printed circuit board includes first and second connection portions in a first direction, first and second branch lines branching from the first connection portion, and , third and fourth branch lines branching from the second connection portion and connected to the first and second branch lines, respectively, and a cross line extending in a second direction intersecting the first direction, thereby causing disconnection of the connection wiring. Problems with poor pixel driving can be minimized.

In addition, because the cross lines extend in a direction that intersects the connection wiring direction, when the edge of the display panel is bent, the possibility of disconnection of the intersection lines is minimized or prevented, and a narrow bezel is realized without disconnection of the connection wires. may be provided.

1 is a plan view of a conventional display device.
Figure 2 is a plan view of an organic light emitting display device according to a first embodiment of the present invention.
Figure 3 is a cross-sectional view to explain the pixels of the light emitting diode panel.
Figure 4 is a schematic plan view of the connection wiring of the organic light emitting display device according to the first embodiment of the present invention.
FIGS. 5A and 5B are diagrams for explaining an organic light emitting display device implementing a narrow bezel.
Figure 6 is a plan view of an organic light emitting display device according to a second embodiment of the present invention.
Figure 7 is a plan view of connection wiring of an organic light emitting display device according to a second embodiment of the present invention.
Figure 8 is a plan view of connection wiring of an organic light emitting display device according to a third embodiment of the present invention.

The present invention provides a flexible display panel including pixels; a printed circuit board located on one side of the flexible display panel; and a connection wire located on the flexible display panel, extending in a first direction to electrically connect the pixel and the printed circuit board, wherein the connection wire includes first and A second connection, first and second branch lines branching from the first connection, third and fourth branch lines branching from the second connection and connected to the first and second branch lines, respectively, and intersecting the first direction. An organic light emitting display device including intersecting lines extending in a second direction is provided.

In the organic light emitting display device of the present invention, the intersection line connects the connection point of the first and third branch lines with the connection point of the second and fourth branch lines.

In the organic light emitting display device of the present invention, the intersection line includes a first intersection line connecting a connection point of the first and third branch lines and a connection point of the second and fourth branch lines, and the first and second intersection lines. A second intersection line connects the branch lines, and a third intersection line connects the third and fourth branch lines.

In the organic light emitting display device of the present invention, the length of the extended crossing line is greater than the width between the first and second connection parts.

In the organic light emitting display device of the present invention, the connection wiring has a plurality of signal paths that transmit electrical signals when the connection wiring is not disconnected.

In the organic light emitting display device of the present invention, the plurality of signal paths include a first signal path by the first connection part, the first branch line, the third branch line, and the second connection part, the first connection part, and the first signal path by the second connection part. a second signal path by the first branch line, the intersection line, the fourth branch line and the second connection, a third signal path by the first connection, the second branch line, the fourth branch line and the second connection, and It has a fourth signal path by the first connection, the second branch line, the intersection line, the third branch line, and the second connection.

In the organic light emitting display device of the present invention, the connection wiring is a signal that transmits an electrical signal through the crossing line when the first and fourth branch lines are disconnected or when the second and third branch lines are disconnected. have a pass

In the organic light emitting display device of the present invention, the signal path includes a second signal path or the first connection by the first connection, the first branch line, the intersection line, the fourth branch line, and the second connection, It has a fourth signal path by the second branch line, the intersection line, the third branch line, and the second connection part.

In the organic light emitting display device of the present invention, the connection wiring accommodates a planar diagonal segment structure, a zig-zag shape, a honeycomb shape, a herringbone pattern, and substrate bending. It is characterized as one of the repetitive patterns that do.

Hereinafter, preferred embodiments according to the present invention will be described with reference to the drawings.

Figure 2 is a plan view of an organic light emitting display device according to a first embodiment of the present invention.

As shown in FIG. 2, the organic light emitting display device 100 according to the first embodiment of the present invention includes a display panel 101 on which a plurality of pixels P is formed, and a display panel 101 located on one side of the display panel 101. It includes a printed circuit board 120.

The display panel 101 includes a plurality of pixels (P), and a substrate (not shown) of the display panel 101 has connection wires 130 connecting the pixels (P) and the printed circuit board 120. ) is formed.

A chip 122 is mounted on the printed circuit board 120, and the chip 122 may be electrically connected to the connection wire 130.

At this time, the connection wire 130 has a branched shape, and even if one of the branch lines is damaged, a signal is supplied by the remaining branch line. Accordingly, the problem of poor driving of the organic light emitting display device caused by damage to the single linear connection wiring and failure of signals to be supplied to the pixel P can be minimized or prevented.

The display panel 101 may be a light emitting diode panel.

Referring to FIG. 3, which is a cross-sectional view for explaining the pixels of the light emitting diode panel, the display panel 101 includes a substrate 310, a thin film transistor (Tr) located on the substrate 310, and the substrate 310. It is located at the top and includes a light emitting diode (D) connected to the thin film transistor (Tr). That is, the organic light emitting display device (100 in FIG. 2) of the present invention may be a light emitting diode display device.

The substrate 310 may be a flexible substrate such as a plastic substrate. For example, the substrate 310 may be a polyimide substrate.

A buffer layer 320 is formed on the substrate 310, and a thin film transistor (Tr) is formed on the buffer layer 320. The buffer layer 320 may be omitted.

A semiconductor layer 322 is formed on the buffer layer 320. The semiconductor layer 322 may be made of an oxide semiconductor material or polycrystalline silicon.

When the semiconductor layer 322 is made of an oxide semiconductor material, a light blocking pattern (not shown) may be formed under the semiconductor layer 322, and the light blocking pattern prevents light from entering the semiconductor layer 322. This prevents the semiconductor layer 322 from being deteriorated by light. Alternatively, the semiconductor layer 322 may be made of polycrystalline silicon, and in this case, both edges of the semiconductor layer 322 may be doped with impurities.

A gate insulating film 324 made of an insulating material is formed on the semiconductor layer 322. The gate insulating film 324 may be made of an inorganic insulating material such as silicon oxide or silicon nitride.

A gate electrode 330 made of a conductive material such as metal is formed on the gate insulating film 324 corresponding to the center of the semiconductor layer 322.

In FIG. 3 , the gate insulating film 324 is formed on the entire surface of the substrate 310, but the gate insulating film 324 may be patterned to have the same shape as the gate electrode 330.

An interlayer insulating film 332 made of an insulating material is formed on the gate electrode 330. The interlayer insulating film 332 may be formed of an inorganic insulating material such as silicon oxide or silicon nitride, or an organic insulating material such as benzocyclobutene or photo-acryl.

The interlayer insulating film 332 has first and second contact holes 334 and 336 exposing both sides of the semiconductor layer 322. The first and second contact holes 334 and 336 are located on both sides of the gate electrode 330 and are spaced apart from the gate electrode 330 .

Here, the first and second contact holes 334 and 336 are also formed within the gate insulating film 324. Alternatively, when the gate insulating film 324 is patterned to have the same shape as the gate electrode 330, the first and second contact holes 334 and 336 may be formed only within the interlayer insulating film 332.

A source electrode 340 and a drain electrode 342 made of a conductive material such as metal are formed on the interlayer insulating film 332.

The source electrode 340 and the drain electrode 342 are positioned spaced apart from each other around the gate electrode 330, and are provided on both sides of the semiconductor layer 322 through the first and second contact holes 334 and 336, respectively. come into contact with

The semiconductor layer 322, the gate electrode 330, the source electrode 340, and the drain electrode 342 form the thin film transistor (Tr), and the thin film transistor (Tr) is a driving element. ) functions as

The thin film transistor (Tr) has a coplanar structure in which the gate electrode 330, the source electrode 342, and the drain electrode 344 are located on the semiconductor layer 320.

In contrast, the thin film transistor (Tr) may have an inverted staggered structure in which the gate electrode is located at the bottom of the semiconductor layer and the source electrode and drain electrode are located at the top of the semiconductor layer. In this case, the semiconductor layer may be made of amorphous silicon.

Although not shown, gate wires and data wires intersect each other to define a pixel area, and a switching element connected to the gate wire and data wire is further formed. The switching element is connected to a thin film transistor (Tr), which is a driving element.

In addition, a power wire is formed parallel to and spaced apart from the data wire or the data wire, and a storage capacitor is further provided to maintain the voltage of the gate electrode of the thin film transistor (Tr), which is a driving element, constant during one frame. It can be configured.

One of the gate wire, the data wire, and the power wire is connected to the connection wire (130 in FIG. 2).

A protective layer 350 having a drain contact hole 352 exposing the drain electrode 342 of the thin film transistor (Tr) is formed to cover the thin film transistor (Tr).

On the protective layer 350, a first electrode 360 connected to the drain electrode 342 of the thin film transistor (Tr) through the drain contact hole 352 is formed separately for each pixel area. The first electrode 360 may be an anode and may be made of a conductive material with a relatively high work function value. For example, the first electrode 360 may be made of a transparent conductive material such as indium-tin-oxide (ITO) or indium-zinc-oxide (IZO). .

A reflective electrode or a reflective layer may be formed on or below the first electrode 360 to increase light efficiency. For example, the reflective electrode or the reflective layer may be made of aluminum-palladium-copper (APC) alloy. The first electrode 360 may have a triple layer structure of ITO/APC/ITO.

Additionally, a bank layer 366 is formed on the protective layer 350 to cover the edge of the first electrode 360. The bank layer 366 exposes the center of the first electrode 360 corresponding to the pixel area.

A light emitting layer 362 is formed on the first electrode 360. The light-emitting layer 362 may have a single-layer structure of an emitting material layer made of a light-emitting material. In addition, in order to increase luminous efficiency, the light-emitting layer 362 includes a hole injection layer, a hole transport layer, a light-emitting material layer, and an electron transport layer ( It may have a multi-layer structure of an electron transporting layer and an electron injection layer.

The light-emitting material layer may include an inorganic light-emitting material such as quantum dots, or an organic light-emitting material.

A second electrode 364 is formed on the substrate 310 on which the light emitting layer 362 is formed. The second electrode 364 is located in front of the display area and is made of a conductive material with a relatively low work function value and can be used as a cathode. For example, the second electrode 364 may be made of any one of aluminum (Al), magnesium (Mg), and aluminum-magnesium alloy (AlMg).

The first electrode 360, the light emitting layer 362, and the second electrode 364 form a light emitting diode (D).

Although not shown, an encapsulation film may be formed on the second electrode 364 to prevent external moisture from penetrating into the light emitting diode (D). The encapsulation film may have a stacked structure of a first inorganic insulating layer, an organic insulating layer, and a second inorganic insulating layer, but is not limited to this. Additionally, a polarizing plate (not shown) may be attached on the encapsulation film to reduce external light reflection. For example, the polarizer may be a circular polarizer.

Figure 4 is a plan view of the connection wiring of the organic light emitting display device according to the first embodiment of the present invention.

Referring to FIGS. 2 and 4 , one end of the connection wire 130 is connected to the pixel P, and the other end of the connection wire 130 is connected to the printed circuit board 120 .

The connection wire 130 includes first and second connection parts 140 and 150, first and second branch lines 142 and 144 branched from the first connection part 140, and the second connection part 150. and includes third and fourth branch lines 152 and 154 respectively connected to the first and second branch lines 142 and 144. The first and second connection parts 440 and 450 are arranged to be spaced apart in the extension direction of the connection wire 430, that is, in the first direction.

That is, the connection wire 130 has a structure in which the diamond shape is repeated and has two signal paths.

Accordingly, even if the first signal path composed of the first and third branch lines 142 and 152 is disconnected, the signal is supplied through the second signal path composed of the second and fourth branch lines 144 and 154. In other words, the problem of pixel drive failure caused by disconnection of the connection wiring can be minimized.

FIGS. 5A and 5B are diagrams for explaining an organic light emitting display device implementing a narrow bezel.

As shown in FIG. 5A, the edge of the flexible display panel 101 is bent so that the end of the display panel 101 and the printed circuit board 120 are located on the rear side of the display surface of the display panel 101. do.

Accordingly, the organic light emitting display device 100 may be provided with a reduced non-display area and a narrow bezel.

However, the disconnection problem of the connection wiring formed in the organic light emitting display device 100 may occur again due to the bending operation.

That is, when the display panel 101 is bent, tensile stress is applied to the bent outer surface along the bending direction, and compressive stress is applied to the bent inner surface along the bending direction. Accordingly, damage may occur to the connection wiring 130 formed on the display panel 101.

For example, as shown in FIG. 5B, when the first and fourth branch lines 142 and 154 of the connection wire 130 are disconnected (DC), a signal is supplied through the connection wire 130. A problem arises where it cannot be done.

Figure 6 is a plan view of an organic light emitting display device according to a second embodiment of the present invention.

As shown in FIG. 6, the organic light emitting display device 400 according to the second embodiment of the present invention includes a display panel 401 on which a plurality of pixels P is formed, and a display panel 401 located on one side of the display panel 401. It includes a printed circuit board 420.

The display panel 401 may be a foldable, bendable, or rollable display device. That is, the organic light emitting display device 400 of the present invention may be a flexible display device.

The display panel 401 includes a plurality of pixels (P), and a substrate (not shown) of the display panel 401 has connection wires 430 connecting the pixels (P) and the printed circuit board 420. ) is formed.

A chip 422 is mounted on the printed circuit board 420, and the chip 422 may be electrically connected to the connection wire 430. The display panel 401 may be provided with an organic light emitting display device 400 in which edges of the display panel 401 are bent to implement a narrow bezel.

As explained in FIG. 3, the display panel 401 includes a substrate 310, a first electrode 360, a light emitting layer 362, and a second electrode 364 located on top of the substrate 310. An organic device according to a second embodiment of the present invention includes a light emitting diode (D) and a thin film transistor (Tr) located between the substrate 310 and the light emitting diode (D) and connected to the light emitting diode (D). The light emitting display device 400 may be a light emitting diode display device. A gate wire (not shown), a data wire (not shown), and a power wire (not shown) defining the pixel (P) are formed in the display panel 401, and the connection wire 430 is the gate wire. , connected to one of the data wire and the power wire.

The connection wires 430 have a branched shape, and even if one of the branch lines is damaged, a signal is supplied by the remaining branch line. Accordingly, the problem of poor driving of the organic light emitting display device caused by damage to the single linear connection wiring and failure of signals to be supplied to the pixel P can be minimized or prevented.

Referring to FIG. 7, which is a plan view of the connection wiring of the organic light emitting display device according to the second embodiment of the present invention along with FIG. 6, the connection wiring 430 extends in the first direction, and the connection wiring 430 One end of is connected to the pixel (P), and the other end of the connection wire 430 is connected to the printed circuit board 420.

The connection wire 430 includes first and second connection parts 440 and 450, first and second branch lines 442 and 444 branched from the first connection part 440, and the second connection part 450. third and fourth branch lines (452, 454) branching from and connected to the first and second branch lines (442, 444), respectively, and an intersection line (460) extending in a second direction intersecting the first direction. Includes. The second direction in which the intersection line 430 extends may be perpendicular to the first direction.

The first and second connection parts 440 and 450 are arranged to be spaced apart in the extension direction of the connection wire 430, that is, in the first direction.

In FIG. 8, the first and second connection portions 440 and 450 and the first to fourth branch lines 442, 444, 452, and 454 are shown to have a substantially diamond shape. In contrast, the connection wire 430 has a planar diagonal segment structure, a zig-zag shape, a honeycomb shape, a herringbone pattern, and a repetitive pattern that accommodates substrate bending. It could be any one.

Additionally, the intersection line 460 connects the connection points of the first and third branch lines 442 and 452 with the connection points of the second and fourth branch lines 444 and 454. Alternatively, the intersection line 460 may be shifted to the right or left to connect the first and second branch lines 442 and 444 or the third and fourth branch lines 452 and 454.

The connection wire 430 has a structure in which a diamond shape is repeated including vertical intersecting lines 460 therein, and has four signal paths. That is, the connection wire 430 of the organic light emitting display device 400 according to the second embodiment of the present invention includes a first connection part 440, a first branch line 442, a third branch line 452, and a second connection part. A first signal path by 450 and a second signal path by the first connection portion 440, the first branch line 442, the intersection line 460, the fourth branch line 454, and the second connection portion 450. and a third signal path by the first connection portion 440, the second branch line 444, the fourth branch line 454, and the second connection portion 450, and the first connection portion 440 and the second branch line 444. , has a fourth signal path by the intersection line 460, the third branch line 452, and the second connection portion 450.

Therefore, even if the first and fourth branch lines 442 and 454 are disconnected (DC), the first connection portion 440, the second branch line 444, the intersection line 460, the third branch line 452, and the second connection portion A signal may be supplied through the fourth signal path by 450. In other words, the problem of pixel drive failure caused by disconnection of the connection wiring can be minimized.

In addition, even if the second and third branch lines 444 and 452 are disconnected (DC), the first connection portion 440, the first branch line 442, the intersection line 460, the fourth branch line 454, and the second connection portion A signal may be supplied through a second signal path by 450. In other words, the problem of pixel drive failure caused by disconnection of the connection wiring can be minimized.

Meanwhile, when the intersection line is formed along the direction connecting the first and second connecting portions 440 and 450, that is, in the first direction, when the display panel 401 is bent, tensile stress and compressive stress acting in the horizontal direction are applied. The intersection line 460 may also be disconnected.

However, as in the present invention, the intersection line 460 connects the connection point of the first and third branch lines 442 and 452 and the connection point of the second and fourth branch lines 444 and 454 in the second direction. When the display panel 401 is bent, the possibility of disconnection of the intersection line 460 due to tensile stress and compressive stress acting in the horizontal direction is minimized. That is, since the length of the intersection line 460 in the second direction is greater than the width in the first direction, the possibility of disconnection due to tensile stress and compressive stress acting in the first direction is minimized.

Accordingly, the organic light emitting display device 400 with a narrow bezel can be provided without disconnection of the connection wire 430.

Figure 8 is a plan view of connection wiring of an organic light emitting display device according to a third embodiment of the present invention.

As shown in FIG. 8, the connection wire 530 includes first and second connection portions 540 and 550, first and second branch lines 542 and 544 branched from the first connection portion 540, and Third and fourth branch lines 552 and 554 branch off from the second connection portion 550 and are connected to the first and second branch lines 542 and 544, respectively, and in a second direction crossing the first direction. It includes extended first to third intersection lines 560, 562, and 564. A second direction in which the first to third intersection lines 560, 562, and 564 extend may be perpendicular to the first direction.

The first and second connection parts 540 and 550 are arranged to be spaced apart in the extension direction of the connection wire 530, that is, in the first direction.

In addition, the first intersection line 560 connects the connection points of the first and third branch lines 542 and 552 and the connection points of the second and fourth branch lines 544 and 554, and the second intersection Line 562 is located between the first connection portion 540 and the first intersection line 560, and the third intersection line 564 is located between the second connection portion 550 and the first intersection line 560. ) is located between.

In Figure 8, three intersecting lines 560, 562, and 564 are shown, but there is no limit to their number. For example, two or four or more crossing lines may be provided.

The first and second branch lines 542 and 444 are connected by the second intersection line 562, and the third and fourth branch lines 552 and 554 are connected by the third intersection line 564. do. Accordingly, the number of signal passes of the connection wire 530 can be increased.

As described above, even if some of the first to fourth branch lines 542, 544, 552, and 554 of the connection wire 530 are disconnected, signals are transmitted through the first to third intersection lines 560, 562, and 564. This is possible. In addition, the first to third intersection lines (560, 562, 564) connect the connection points of the first and third branch lines (542, 552) and the connection points of the second and fourth branch lines (544, 554). Because it extends along two directions, the possibility of disconnection of the first to third intersection lines 560, 562, and 564 when the display panel 401 is bent is minimized.

Accordingly, an organic light emitting display device implementing a narrow bezel without disconnection of the connection wire 530 can be provided.

Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may modify the present invention in various ways without departing from the technical spirit and scope of the present invention as set forth in the claims below. and that it can be changed.

100, 400: display device 101, 401: display panel
120, 420: printed circuit board 122, 422: chip
230, 430, 530: Connection wiring 240, 440, 540: First connection
242, 442, 542: first branch line 244, 444, 544: second branch line
250, 450, 550: second connection 252, 452, 552: third branch line
254, 454, 554: Fourth branch line 460, 560, 562, 564: Intersection line

Claims (10)

A flexible display panel including pixels;
a printed circuit board located on one side of the flexible display panel; and
A connection wire is located on the flexible display panel and extends in a first direction to electrically connect the pixel to the printed circuit board,
The connection wires include first and second connection parts arranged in the first direction, first and second branch lines branched from the first connection part, and branched from the second connection part and connected to the first and second branch lines, respectively. third and fourth branch lines and an intersection line extending in a second direction intersecting the first direction,
The organic light emitting display device wherein the length of the extended crossing line is greater than the width between the first and second connection parts.
According to claim 1,
The intersection line connects the connection points of the first and third branch lines with the connection points of the second and fourth branch lines.
According to claim 1,
The intersection line includes a first intersection line connecting the connection points of the first and third branch lines and the connection points of the second and fourth branch lines, a second intersection line connecting the first and second branch lines, and An organic light emitting display device comprising the third and fourth branch lines and a third intersection line.
delete According to claim 1,
An organic light emitting display device wherein the connection wire has a plurality of signal paths that transmit electrical signals when the connection wire is not disconnected.
According to claim 5,
The plurality of signal paths include a first signal path by the first connection, the first branch line, the third branch line, and the second connection, the first connection, the first branch line, the intersection line, and the fourth connection. a second signal path by the branch line and the second connection, a third signal path by the first connection, the second branch line, the fourth branch line, and the second connection, and the first connection, the second branch line, An organic light emitting display device having a fourth signal path formed by the intersection line, the third branch line, and the second connection portion.
According to claim 1,
The connection wiring has a signal path that transmits an electrical signal through the intersection line when the first and fourth branch lines are disconnected or when the second and third branch lines are disconnected.
According to claim 7,
The signal path may be a second signal path by the first connection, the first branch line, the intersection line, the fourth branch line, and the second connection, or the first connection, the second branch line, the intersection line, and the second connection. An organic light emitting display device having a third branch line and a fourth signal path by the second connection part.
According to claim 1,
The connection wiring is characterized in that it is one of a repetitive pattern that accommodates planar diagonal segment structures, zig-zag shapes, honeycomb shapes, herringbone patterns, and substrate bending. Organic light emitting display device. According to claim 1,
The first branch line extends in a third direction oblique to the first direction, and the second branch line extends in a fourth direction oblique to the first direction and different from the third direction,
The third branch line extends in a fifth direction oblique to the first direction, and the fourth branch line is oblique to the first direction and extends in a sixth direction different from the fifth direction,
There is no branch line parallel to the first direction between the first and second connecting portions,
The organic light emitting display device is characterized in that the flexible display panel is bent based on the second direction.

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