KR100692866B1 - Organic electro-luminescence display device and method for fabricating and repairing the same - Google Patents

Abstract

An organic electro-luminescence display device and a method for manufacturing and repairing the same are provided to provide a data signal to a data electrode having an error pattern by shorting each cross point of a dummy data electrode and a data line of a non-display region which is extended from both directions of the data electrode having the error pattern, and a repair line which is formed as a closed loop on a non-display region. An organic electro-luminescence display device includes data electrodes(DL), scan electrodes(SL), a display region(A), an insulation layer(66), and at least one repair line(70). The display region(A) has a light-emitting region of a matrix shape on a cross region of the data electrodes(DL) and the scan electrodes(SL). The insulation layer(66) is formed on an outer circumference of the display region(A). The repair line(70) is formed with a closed loop on the insulation layer(66). The data electrodes(DL) are extended to the outer circumference of the display region(A). The data electrodes(DL) and the repair line(70) are cross each other and the insulation layer(66) is therebetween.

Description

ORGANIC ELECTRO-LUMINESCENCE DISPLAY DEVICE AND METHOD FOR FABRICATING AND REPAIRING THE SAME}

1 is a plan view schematically showing a conventional organic electroluminescent display device.

2A and 2B are cross-sectional views taken along lines II ′ and II-II ′ of FIG. 1.

3 is a cross-sectional view illustrating a case in which a data electrode is defective in FIG. 2A.

4 is a plan view schematically illustrating an organic electroluminescent display device according to a first embodiment of the present invention.

5A and 5B are cross-sectional views taken along lines III-III 'and IV-IV' shown in FIG. 4;

6A through 9B are cross-sectional views illustrating a method of manufacturing an organic light emitting display device according to a first embodiment of the present invention.

10A and 10B are cross-sectional views for explaining a repair method of a data electrode that has a pattern failure.

11 is a plan view illustrating a path through which a data signal is transmitted to a repaired data electrode according to a first embodiment of the present invention.

12 is a plan view schematically illustrating an organic electroluminescent display device according to a second exemplary embodiment of the present invention.

13 is a plan view schematically illustrating an organic electroluminescent display device according to a third exemplary embodiment of the present invention.

14 is a plan view schematically illustrating an organic electroluminescent display device according to a fourth exemplary embodiment of the present invention.

<Brief description of symbols for the main parts of the drawings>

2, 52: substrate 5: bus electrode

6, 66: insulating film 8, 58: partition wall

10, 60: organic light emitting layer 50: dummy partition

61: scan line 70: repair line

71: data line 72: dummy data electrode

80: laser irradiation device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic electroluminescent display device, and more particularly, to an organic electroluminescent display device capable of repairing a data electrode for generating dark lines in a display panel due to a poor pattern, a manufacturing method thereof, and a repair method using the same.

Recently, various flat panel displays have been developed to reduce weight and volume, which are disadvantages of cathode ray tubes. As flat panel displays, liquid crystal displays (hereinafter referred to as "LCDs"), field emission displays (FEDs), plasma display panels (hereinafter referred to as PDPs), and electroluminescence (Electro-luminescence: hereinafter referred to as "EL") There is a display element.

PDP is most advantageous for large screens because of its relatively simple structure and manufacturing process, but it has the disadvantages of low luminous efficiency, low luminance and high power consumption. LCD is mainly used as a display element of notebook computers, but the demand is increasing. However, the large screen is difficult and power consumption is large due to the backlight unit. In addition, LCD has a disadvantage of high light loss and a narrow viewing angle due to optical elements such as a polarizing filter, a prism sheet, and a diffusion plate. On the other hand, the EL display element is a self-luminous element that emits light by itself and has advantages of fast response speed and high luminous efficiency, luminance, and viewing angle. EL display elements are roughly classified into inorganic EL display elements and organic EL display elements depending on the material of the light emitting layer. Inorganic EL display elements have higher power consumption than the organic EL display elements, cannot obtain high luminance, and cannot emit various colors of R, G, and B. On the other hand, the organic EL display device is driven at a low DC voltage of several tens of volts, has a fast response speed, obtains high brightness, and emits various colors of R, G, and B, which is suitable for next-generation flat panel display devices.

1 is a plan view schematically showing a conventional organic EL display element.

Referring to FIG. 1, a conventional organic EL display device includes a data electrode DL and a scan electrode SL intersecting with each other, and EL cells formed at each intersection thereof and arranged in a matrix type to display an image during organic light emission. The display area A is implemented.

In addition, the data pad DP is connected to the data electrode DL with a width wider than that of the data electrode DL in the display area A, and the scan is connected to the scan electrode SL with a width wider than that of the scan electrode SL. The non-display area B in which the pad SP is formed is provided.

The data pad DP is connected to a tape carrier package (TCP) in which a data driver for generating a data signal is mounted, and the scan pad SP is connected to a TCP in which a scan driver for generating a scan signal is mounted.

Each data pad DP supplies a data signal from the data driver to the data electrode DL, and each scan pad SP supplies a scan signal from the scan driver to the scan electrode SL.

2A and 2B are cross-sectional views taken along the lines II ′ and II-II ′ of FIG. 1, respectively.

Referring to FIGS. 2A and 2B, an organic EL display device includes an insulating film having an opening for each region where the organic light emitting layer 10 is to be formed, and the data electrode DL and the scan electrode SL that cross each other in the display area A. FIG. 6), an organic light emitting layer 10 formed at each intersection of the data electrode DL and the scan electrode SL, and a partition 8 for separating the organic light emitting layer 10 and the scan electrode SL. In addition, the data pad DP connected to the data electrode DL and the scan pad SP connected to the scan electrode SL, the data electrode DL, the data pad DP, The bus electrode 5 is provided to compensate for the resistance of the scan pad SP.

The data electrode DL of the display area A and the data pad DP and the scan pad SP of the non-display area B are indium tin oxide (ITO), indium zinc oxide (IZO), It is formed on the substrate 2 with a transparent conductive material such as indium tin zinc oxide (ITZO).

The bus electrode 5 is formed of chromium (Cr) or molybdenum to compensate for the resistance of the data electrode DL, the data pad DP, and the scan pad formed of a transparent conductive material having high resistance such as ITO, IZO, or ITZO. A metal material such as Mo is formed on the data electrode DL, the data pad DP, and the scan pad SP. The bus electrode formed on the data electrode DL of the display area A is formed to have a very small width on one side of the data electrode DL in order to minimize the reduction of the aperture ratio of the display element. The non-display area B The bus electrode 5 formed on the data pad DP and the scan pad SP is formed on the data pad DP and the scan pad SP.

The partition wall 8 is formed in a direction crossing the data electrode DL and is formed to have an inverse taper structure in which an upper end portion has a wider width than a lower end portion for separation of the organic light emitting layer 10 and the scan electrode SL. do.

The organic light emitting layer 10 is formed through deposition using a mask of an organic light emitting material for each opening formed on the data electrode DL, and the scan electrode SL is formed through full deposition of an electrode material such as aluminum (Al). . The scan pad SP formed in the non-display area B and the scan electrode SL formed in the display area A are connected to each other when the entire surface of the electrode material is deposited.

A pattern defect E as shown in FIG. 3 may occur in the data electrode DL of the organic EL display element due to a process error. If such a pattern defect E occurs in the organic EL display element, a problem arises in that all EL cells connected to the data electrode DL in which the pattern defect E has occurred cannot be driven. In other words, the data electrode DL, which is disconnected due to the disconnection of the data electrode DL, does not receive a data signal from the data pad DP, and thus is connected to the data electrode DL in which the pattern defect E occurs. It is impossible to drive all the EL cells. That is, the organic EL display element in which the dark line is generated due to the pattern defect E is determined to be defective.

Accordingly, an object of the present invention is to provide an organic electroluminescent display device capable of repairing a data electrode generating dark lines in a display region due to a poor pattern, a manufacturing method thereof, and a repair method using the same.

In order to achieve the above object, the organic electroluminescent display device according to the present invention comprises: a display area in which a light emitting area is formed in a matrix form at the intersection of the data electrodes and the scan electrodes; An insulating layer formed outside the display area; At least one repair line formed as a closed loop on the insulating layer.

The data electrodes extend to the outside of the display area.

The data electrodes and the repair line cross each other with the insulating layer interposed therebetween.

The repair line is formed of the same electrode material as the scan electrodes.

The organic electroluminescent display device according to the present invention further includes a dummy partition wall formed as a closed loop surrounding the display area at an outer portion of the display area, wherein the dummy partition wall separates an electrode material deposited on the dummy partition wall. Form a repair line.

The organic electroluminescent display device according to the present invention further includes at least two dummy barrier ribs formed in a closed loop surrounding the display region and spaced apart from each other, and the dummy barrier ribs are formed on the dummy barrier rib. The repair material is separated to form the repair line.

According to an exemplary embodiment of the present invention, an organic electroluminescent display device may include dummy barrier ribs formed in parallel to the data electrodes at both ends of the scan electrodes in an outer portion of the display area; The scan barrier may further include a barrier rib having both ends connected to the dummy barrier rib, and the dummy barrier rib and the barrier rib may separate the dummy barrier rib and the electrode material deposited on the barrier rib to form the repair line.

The organic electroluminescent display device according to the present invention comprises: first dummy barrier ribs formed in parallel with the data electrodes at both ends of the scan electrodes in an outer portion of the display area; A second dummy partition wall formed as a closed loop surrounding the display area outside the first dummy partition wall; Separating the scan electrodes and a partition wall having both ends connected to the first dummy partition wall, wherein the first and second dummy partition wall and the partition wall is deposited on the first and second dummy partition wall and the partition wall Material is separated to form the repair line.

According to an aspect of the present invention, there is provided a method of manufacturing an organic light emitting display device, the method comprising: forming a display area in which a light emitting area is formed in a matrix at an intersection area between data electrodes and scan electrodes; Forming an insulating layer on an outer portion of the display area; Forming at least one repair line formed of a closed loop on the insulating layer.

The data electrodes are formed to extend outside the display area.

The data electrodes and the repair line are formed to cross each other with the insulating layer interposed therebetween.

The repair line is formed of the same electrode material as the scan electrodes.

The method of manufacturing an organic electroluminescent display device according to the present invention further includes forming a dummy partition wall with a closed loop surrounding the display area in an outer portion of the display area, wherein the dummy partition wall is deposited on the dummy partition wall. Material is separated to form the repair line.

The method of manufacturing an organic electroluminescent display device according to the present invention further includes forming at least two dummy barrier ribs formed in a closed loop surrounding the display area and maintaining a predetermined distance from each other outside the display area. The dummy partition wall separates the electrode material deposited on the dummy partition wall to form the repair line.

According to an aspect of the present invention, there is provided a method of manufacturing an organic light emitting display device, including forming dummy dummy walls in parallel with the data electrodes at both ends of the scan electrodes in an outer portion of the display area; Separating the scan electrodes and forming a partition wall having both ends connected to the dummy partition wall, wherein the dummy partition wall and the partition wall separate the electrode material deposited on the dummy partition wall and the partition wall to form the repair line. Form.

According to an aspect of the present invention, there is provided a method of manufacturing an organic light emitting display device, including forming first dummy barrier ribs at both ends of the scan electrodes in parallel with the data electrodes in an outer portion of the display area; Forming a second dummy partition wall with a closed loop surrounding the display area outside the first dummy partition wall; Separating the scan electrodes and forming a partition wall having both ends connected to the first dummy partition wall, wherein the first and second dummy partition walls and the partition wall are disposed on the first and second dummy partition walls and the partition walls. The repair material is separated to form the repair line.

According to another aspect of the present invention, there is provided a method of repairing an organic light emitting display device, comprising: a display area in which a light emitting area is formed in a matrix form at an intersection area between data electrodes and scan electrodes; An insulating layer formed outside the display area; At least one repair line formed as a closed loop on the insulating layer, wherein the data electrodes extend to an outer portion of the display area and cross the repair line with the insulating layer interposed therebetween. A method of repairing a data electrode, comprising: welding each intersection of the disconnected data electrode and the repair line with a laser to form a short point; And supplying a data signal to the disconnected data electrode through the short point.

Supplying a data signal to the disconnected data electrode through the short point may include supplying a data signal to a first electrode of the disconnected data electrode at a first short point among the short points; And supplying a data signal to a second electrode of the disconnected data electrode at a second short point among the short points.

The data signals supplied to the first and second electrodes are the same.

Other objects and features of the present invention in addition to the above object will be apparent from the description of the embodiments with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 4 to 15.

4 is a plan view schematically illustrating an organic EL display device according to a first exemplary embodiment of the present invention.

Referring to FIG. 4, the organic EL display device according to the first exemplary embodiment of the present invention includes a data electrode DL and a scan electrode SL that cross each other, and an EL cell formed at each intersection thereof. It has a display area A in which an image is implemented.

In addition, the data pad DP is connected to the data electrode DL in a wider width than the data electrode DL, and the data line 71 and the data line 71 connect the data electrode DL and the data pad DP. The scan pad SP, the scan electrode SL, and the scan pad connected to the scan electrode SL with a width wider than the dummy data electrode 72 and the scan electrode SL, which extend from the data electrode DL in the opposite direction to the scan electrode SL. A non-display area including a scan line 61 connecting the SPs and a repair line 70 crossing the data line 71 and the dummy data electrode 72 outside the display area A to form a closed loop. (B) is provided.

The repair line 70 may include a dummy partition 50 of the non-display area B and a scan electrode SL of the display area A, which are formed at the same time when the partition of the display area A is formed. It is formed through the electrode material deposited on the entire surface up to the non-display area B outside the display area A, including A). The dummy partition wall 50 is formed in the form of a closed loop surrounding the display area A at an outer portion of the display area A. FIG. That is, the repair line 70 is formed in the form of a closed loop on the outside of the display area A through the electrode material deposited on the dummy partition wall 50 to cross the data line 71 and the dummy data electrode 72. do.

The data pad DP is connected to a tape carrier package (TCP) in which a data driver for generating a data signal is mounted, and the scan pad SP is connected to a TCP in which a scan driver for generating a scan signal is mounted.

Each data pad DP supplies a data signal from the data driver to the data electrode DL, and each scan pad SP supplies a scan signal from the scan driver to the scan electrode SL.

5A and 5B are cross-sectional views taken along lines III-III 'and IV-IV' shown in FIG. 4.

5A and 5B, an organic EL display device according to an exemplary embodiment of the present invention includes a data electrode DL, a scan electrode SL, and an organic emission layer 60 intersecting each other in the display area A. FIG. An insulating layer 66 formed over the display area A and the non-display area B, and each organic light emitting layer 60 formed at each intersection of the data electrode DL and the scan electrode SL. And a partition wall 58 for separating the organic light emitting layer 60 and the scan electrode SL. The dummy partition wall 50 of the non-display area B is formed at the same time as the partition wall 58 of the display area A so that the repair line 70 having a closed loop shape is formed in the non-display area B outside the display area A. To form.

In addition, the organic EL display device according to the exemplary embodiment of the present invention includes a data line 71, a data line 71, which extends from the data electrode DL and is connected to the data pad DP in the non-display area B. The dummy data electrode 72 extends from the data electrode DL in the opposite direction.

The data electrode DL of the display area A and the data line 71 of the non-display area B, the dummy data electrode 72, the data pad DP, and the scan pad SP each have a high light transmittance. (Indium Tin Oxide), Indium Zinc Oxide (IZO), Indium Tin Zinc Oxide (ITZO), or the like, and are formed on the substrate 52.

The repair line 70 is made of the same electrode material as the scan electrode SL and is formed at the same time as the scan electrode SL of the display area A, and the non-display area B in which the insulating layer 66 and the dummy partition wall 50 are formed. Is formed to intersect the data line 71 and the dummy data electrode 72.

The partition 58 of the display area A crosses the data electrode DL, and has an inverse taper having an upper end wider than the lower end in order to separate the organic light emitting layer 60 and the scan line SL. It is formed to have a structure. In addition, two dummy barrier ribs 50 of the non-display area B are formed on the left and right outer sides of the display area A in the direction parallel to the data electrode DL, and the display area (B) is formed to form the repair line 70. Like the partition 58 of A), it has a reverse taper structure.

The organic emission layer 60 is formed by depositing an organic light emitting material using a mask for each opening formed on the data electrode DL, and the scan electrode SL and the repair line 70 are formed of an electrode material such as aluminum (Al). It is formed through surface deposition.

A method of manufacturing the organic EL display device will be described below with reference to FIGS. 6A to 9B.

6A and 6B, the data electrode DL of the display area A and the data line 71 and the dummy data electrode 72 of the non-display area B are transparent, such as ITO, IZO, ITZO, or the like. After the conductive material is deposited on the entire surface, the conductive material is patterned by a photolithography process to be spaced apart from the substrate 52. Subsequently, as shown in FIGS. 7A and 7B, an insulating layer 66 having an opening is formed in each region where the organic light emitting layer is to be formed. In this case, the insulating layer 66 is formed to the non-display area B outside the display area A. 8A and 8B, a partition 58 for separating the organic emission layer 60 and the scan electrode SL is formed in the display area A in which the insulating layer 66 is formed, and the non-display area B is formed. The dummy partition wall 50 for forming the repair line 70 is formed in a closed loop shape surrounding the outer portion of the display area A. FIG. An electrode material for forming the scan electrode SL and the repair line 70 on the partition 58 formed in the display area A and the dummy partition 50 formed in the non-display area B as shown in FIGS. 9A and 9B. Is deposited. At this time, the repair line 70 intersects the data line 71 and the dummy data electrode 72 with the insulating layer 66 therebetween.

In the organic EL display device having such a structure, when a pattern defect occurs in the data electrode DL due to a process error, the repair line 70, the data line 71, and the non-display area B are formed. The dummy data electrode 72 may be used to repair the data electrode DL in which the pattern failure occurs.

Hereinafter, a repair method of a data electrode having a pattern defect according to an embodiment of the present invention will be described with reference to FIGS. 10A to 11.

First, referring to FIG. 10A, the data line 71 and the dummy data electrode 72 extended from the data electrode DL where the pattern defect C has occurred by using the laser irradiation device 80 may be repaired with the repair line 70. Irradiate the laser at each intersection. When the irradiator is irradiated from the laser irradiation device 80, the data line 71 and the dummy data electrode 72 extended from the data electrode DL where the pattern defect C has occurred are intersected with the repair line 70. As the metal material and the insulating material are recorded, they are shorted as shown in FIG. 10B and the data signals supplied from the data pad DP are supplied to the display area A through the data line 71 as well as shown in FIG. 11. Through the repaired point, the repair line 70 and the dummy data electrode 72 are supplied to the data electrode DL of the disconnected display area. As a result, the data signal can be supplied to the data electrode DL, which has not been supplied with the data signal due to the disconnection of the data electrode DL.

12 is a plan view schematically illustrating an organic EL display device according to a second exemplary embodiment of the present invention.

Referring to FIG. 12, the organic EL display device according to the second embodiment of the present invention has a dummy partition wall 50 added thereto in comparison with the organic EL display device according to the first embodiment of the present invention, which is signed through FIG. 4. Only the parts are different and the other parts are the same, and therefore the same reference numerals will be given, and detailed description thereof will be omitted. The dummy partition wall 50 illustrated in FIG. 12 is formed of two closed loops which wrap the display area A at the outer portion of the display area A and maintain a constant distance from each other. The repair line 70 is deposited together with the scan electrode SL and is formed between the dummy partition walls 50.

The method of manufacturing the organic EL display device according to the second exemplary embodiment of the present invention differs from those of forming two dummy partition walls 50 as shown in FIG. 12 in FIGS. 8A and 8B, as described with reference to FIGS. 6A through 9B. It is the same overall.

According to the second embodiment of the present invention, a method of repairing a data electrode having a pattern failure through a dummy data electrode is the same as described with reference to FIGS. 10A to 11.

13 is a plan view schematically illustrating an organic EL display device according to a third exemplary embodiment of the present invention.

Referring to FIG. 13, the organic EL display device according to the third exemplary embodiment of the present invention is compared with the organic EL display device according to the first exemplary embodiment of the present invention. 58 and the other parts are the same, and the same reference numerals will be used, and detailed description thereof will be omitted. The dummy barrier ribs 50 illustrated in FIG. 13 are formed on the left and right sides of the non-display area B in parallel with the data electrodes DL of the display area A. In addition, the partition wall 58 of the display area A extends to contact the dummy partition wall 50 of the non-display area B.

In the method of manufacturing the organic EL display device according to the third exemplary embodiment of the present invention, only portions in which the dummy barrier rib 50 and the barrier rib 58 are formed as shown in FIG. 13 are different from FIGS. 8A and 8B, and FIGS. It is the same as described throughout.

According to the third embodiment of the present invention, a method of repairing a data electrode having a pattern failure through a dummy data electrode is the same as described with reference to FIGS. 10A through 11.

14 is a plan view schematically illustrating an organic EL display device according to a fourth exemplary embodiment of the present invention.

Referring to FIG. 14, the organic EL display device according to the fourth exemplary embodiment of the present invention is compared with the organic EL display device according to the first exemplary embodiment of the present invention, which is signed through FIG. 4. 58 and the other parts are the same, and the same reference numerals will be used, and detailed description thereof will be omitted. The dummy barrier rib 50 shown in FIG. 13 is formed in each of the left and right sides in the non-display area B so as to be parallel to the data electrodes DL of the display area A, and has a predetermined interval therebetween. A dummy bulkhead 50 in the form of a closed loop surrounding the loop is further formed. In addition, the partition wall 58 of the display area A extends to contact the dummy partition wall 50 of the non-display area B.

In the method of manufacturing the organic EL display device according to the fourth exemplary embodiment of the present invention, only portions in which the dummy barrier rib 50 and the barrier rib 58 are formed as shown in FIG. 14 are different from FIGS. 8A and 8B. It is the same as described throughout.

According to the fourth embodiment of the present invention, a method of repairing a data electrode having a pattern failure through a dummy data electrode is the same as described with reference to FIGS. 10A through 11.

As described above, the organic EL display device according to the present invention is formed together with the scan electrode of the display area when a pattern defect occurs in the data electrode due to a process error or the like, and is formed as a closed loop in the non-display area outside the display area. By using a laser, a short circuit between the repair line and the intersection of the data line and the dummy data electrode of the non-display area respectively extended in both directions of the data electrode having a bad pattern can be used to supply a data signal to the data electrode having a bad pattern using the laser. Can be.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (19)

A display area in which a light emitting area is formed in a matrix at an intersection area between the data electrodes and the scan electrodes; An insulating layer formed outside the display area; And at least one repair line formed as a closed loop on the insulating layer. According to claim 1, And the data electrodes extend to an outer portion of the display area. The method of claim 2, And the data electrodes and the repair line intersect with the insulating layer interposed therebetween. According to claim 1, And the repair line is formed of the same electrode material as the scan electrodes. According to claim 1, A dummy partition wall formed in a closed loop surrounding the display area, the outer side of the display area; And the dummy barrier rib isolating electrode material deposited on the dummy barrier rib to form the repair line. According to claim 1, And at least two dummy partition walls formed in a closed loop surrounding the display area and spaced apart from each other at an outer portion of the display area. And the dummy barrier rib isolating electrode material deposited on the dummy barrier rib to form the repair line. According to claim 1, Dummy barrier ribs formed at opposite ends of the scan electrodes in parallel with the data electrodes in an outer portion of the display area; Separating the scan electrodes and further including a partition wall at both ends connected to the dummy partition wall, And the dummy barrier rib and the barrier rib separate the electrode material deposited on the dummy barrier rib and the barrier rib to form the repair line. According to claim 1, First dummy barrier ribs formed at opposite ends of the scan electrodes in parallel with the data electrodes in an outer portion of the display area; A second dummy partition wall formed as a closed loop surrounding the display area outside the first dummy partition wall; Separating the scan electrodes and further including a partition wall at both ends connected to the first dummy partition wall, And the first and second dummy partition walls and the partition walls separate the electrode material deposited on the first and second dummy partition walls and the partition walls to form the repair line. Forming a display area in which a light emitting area is formed in a matrix at an intersection area between the data electrodes and the scan electrodes; Forming an insulating layer on an outer portion of the display area; And forming at least one repair line formed as a closed loop on the insulating layer. The method of claim 9, And the data electrodes are formed to extend to an outer portion of the display area. The method of claim 10, And the data electrodes and the repair line are formed to cross each other with the insulating layer interposed therebetween. The method of claim 9, And the repair line is formed of the same electrode material as that of the scan electrodes. The method of claim 9, Forming a dummy partition wall around the display area with a closed loop surrounding the display area; And the dummy barrier rib isolating electrode material deposited on the dummy barrier rib to form the repair line. The method of claim 9, Forming at least two dummy barrier ribs formed in a closed loop surrounding the display area and maintaining a predetermined distance from each other outside the display area; And the dummy barrier rib isolating electrode material deposited on the dummy barrier rib to form the repair line. The method of claim 9, Forming dummy barrier ribs at opposite ends of the scan electrodes in parallel with the data electrodes in an outer portion of the display area; Separating the scan electrodes and forming a partition wall having both ends connected to the dummy partition wall; And the barrier rib and the barrier rib are formed to separate the electrode material deposited on the barrier rib and the barrier rib to form the repair line. The method of claim 8, Forming first dummy barrier ribs at opposite ends of the scan electrodes in parallel with the data electrodes in an outer portion of the display area; Forming a second dummy partition wall with a closed loop surrounding the display area outside the first dummy partition wall; Separating the scan electrodes and forming a partition wall having both ends connected to the first dummy partition wall; The first and second dummy barrier ribs and the barrier ribs may form the repair line by separating electrode materials deposited on the first and second dummy barrier ribs and the barrier ribs. . A display area in which a light emitting area is formed in a matrix at an intersection area between the data electrodes and the scan electrodes; An insulating layer formed outside the display area; At least one repair line formed as a closed loop on the insulating layer, wherein the data electrodes extend to an outer portion of the display area and cross the repair line with the insulating layer interposed therebetween. In the method of repairing the data electrode, Welding each intersection of the disconnected data electrode and the repair line with a laser to form a short point; And supplying a data signal to the disconnected data electrode through the short point. The method of claim 17, Supplying a data signal to the disconnected data electrode through the short point, Supplying a data signal to a first electrode of the disconnected data electrode at a first short point among the short points; And supplying a data signal to a second electrode of the disconnected data electrode at a second short point among the short points. The method of claim 18, The data signal supplied to the first and second electrodes are the same.

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