Display Panel

Abstract

The present invention relates to a display panel. The display panel includes a scan line, a data line, an organic light emitting diode, a pixel circuit configured to supply a driving current and electrically connected to the scan line and the data line, a repair pixel circuit configured to generate a repair driving current when a faulty pixel circuit exists, a repair line, and a repair data line, wherein a corresponding repair pixel circuit corresponds to a faulty pixel circuit and is configured to generate a repair driving current based on a repair data voltage from a corresponding repair data line, and wherein the repair driving current is configured to be supplied to a corresponding organic light emitting diode corresponding to the faulty pixel circuit through a corresponding repair line corresponding to the faulty pixel circuit.

Description

[0001] This application is a divisional application of the patent application with application number 201610491632.1 and title “Display panel and repair method thereof” filed on June 29, 2016.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This application claims priority to and the benefit of Korean Patent Application No. 10-2015-0092519 filed on Jun. 29, 2015, in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference in their entirety. Technical Field

[0004] Exemplary embodiments of the present disclosure relate to a display panel and a repair method thereof. Background Art

[0005] Recently, various display devices having reduced weight and volume compared to cathode ray tubes have been developed. Such display devices include liquid crystal display devices, field emission display devices, plasma display panels, organic light emitting display devices, and the like.

[0006] Recently, research on large-sized organic light emitting display devices has been conducted. A lot of research is being conducted to increase the yield of the manufacturing process of large-sized organic light emitting display devices, and even if the yield is low, research is also being conducted to overcome problems associated with organic light emitting display devices in different ways. Summary of the invention

[0007] One exemplary embodiment of the present disclosure provides a display panel in which a repair data voltage is supplied to a repair pixel circuit through a line extending in a horizontal direction, and a repair method thereof.

[0008] Furthermore, exemplary embodiments provide a display panel and a repair method thereof, in which even if the display panel is an organic light emitting diode display, a load is reduced by short-circuiting a repair line according to a repair data voltage supplied to a repair pixel circuit through a line extending in a horizontal direction.

[0009] According to one embodiment of the present disclosure, a display panel may include: a plurality of scan lines extending in a first direction; a plurality of data lines extending in a second direction intersecting the first direction; a plurality of organic light-emitting diodes; a plurality of pixel circuits corresponding to the plurality of organic light-emitting diodes, respectively configured to supply drive currents, and respectively electrically connected to the plurality of scan lines and the plurality of data lines; a plurality of repair pixel circuits configured to generate repair drive currents when there are faulty pixel circuits in the plurality of pixel circuits; a plurality of repair lines; and a plurality of repair data lines, wherein corresponding repair pixel circuits of the plurality of repair pixel circuits correspond to faulty pixel circuits and are configured to generate repair drive currents based on repair data voltages from corresponding repair data lines corresponding to the faulty pixel circuits in the plurality of repair data lines, wherein the repair drive currents are configured to be supplied to corresponding organic light-emitting diodes corresponding to the faulty pixel circuits in the plurality of organic light-emitting diodes through corresponding repair lines corresponding to the faulty pixel circuits in the plurality of repair lines, and wherein the lengths of portions of the plurality of repair data lines extending in the first direction are greater than the lengths of portions that do not extend in the first direction.

[0010] The faulty pixel circuit can be electrically disconnected from the corresponding organic light-emitting diode, the corresponding repair data line can be electrically connected to the corresponding data line corresponding to the faulty pixel circuit among multiple data lines, the corresponding repair pixel circuit can be configured to receive a repair data voltage, the corresponding repair line can be electrically connected to the corresponding organic light-emitting diode, and the repair drive current can be configured to be supplied to the corresponding organic light-emitting diode.

[0011] Each of the multiple repair lines may generally extend in a first direction, and may further include an extension portion extending in a second direction, and when there is a cut data line among the multiple data lines, the extension portions of two adjacently connected repair lines of the multiple repair lines may be electrically connected to respective ones of the two cut portions of the cut data line, and the voltage supplied to any one of the two cut portions may also be supplied to the other of the two cut portions through the two adjacently connected repair lines.

[0012] Each of the multiple repair data lines may generally extend in the first direction, and may further include an extension portion extending in the second direction, and when there is a cut data line among the multiple data lines, the extension portions of two adjacently connected repair data lines of the multiple repair data lines may be electrically connected to respective ones of the two cut portions of the cut data line, and the voltage supplied to any one of the two cut portions may also be supplied to the other of the two cut portions through the two adjacently connected repair data lines.

[0013] The plurality of repair data lines may include a plurality of repair lines, each repair pixel circuit may further include a repair link line, and a corresponding repair data line may be adjacent to a corresponding repair line in the second direction.

[0014] The corresponding repair data line can be electrically connected to the corresponding data line corresponding to the faulty pixel circuit among the multiple data lines, the corresponding repair line can be electrically connected to the corresponding repair connection line corresponding to the corresponding repair pixel circuit among the repair connection lines, the corresponding repair pixel circuit can be configured to receive a repair data voltage, the faulty pixel circuit can be electrically disconnected from the corresponding organic light-emitting diode, and the corresponding repair line can be electrically connected to the corresponding organic light-emitting diode.

[0015] Another embodiment of the present disclosure has an aspect of a method for repairing a faulty pixel circuit in a display panel. According to the embodiment, a method for repairing a display panel is provided, the display panel comprising: a plurality of scan lines extending in a first direction; a plurality of data lines extending in a second direction intersecting the first direction; a plurality of organic light emitting diodes; a plurality of pixel circuits respectively corresponding to the plurality of organic light emitting diodes, configured to respectively supply drive currents, and respectively electrically connected to the plurality of scan lines and the plurality of data lines; a plurality of repair pixel circuits configured to generate repair drive currents when a faulty pixel circuit exists in the plurality of pixel circuits; and a plurality of repair lines extending in the first direction; the method comprising: electrically disconnecting the faulty pixel circuit from a corresponding organic light emitting diode corresponding to the faulty pixel circuit in the plurality of organic light emitting diodes; supplying a repair data voltage to a corresponding repair pixel circuit corresponding to the faulty pixel circuit in the plurality of repair pixel circuits; generating a repair drive current based on the repair data voltage; and supplying the repair drive current to the corresponding organic light emitting diode through a corresponding repair line corresponding to the faulty pixel circuit in the plurality of repair lines.

[0016] The display panel may further include a plurality of repair data lines electrically connected to the plurality of repair pixel circuits, respectively, and during a period in which a repair data voltage is supplied to a corresponding repair pixel circuit, the corresponding repair data line may be electrically connected to the corresponding repair pixel circuit and electrically connected to a corresponding data line among the plurality of data lines corresponding to the faulty pixel circuit.

[0017] During supplying the repair data voltage to the corresponding repair pixel circuit, one of the plurality of repair lines except for the corresponding repair line of the plurality of repair lines may be electrically coupled to a corresponding data line of the plurality of data lines corresponding to the failed pixel circuit.

[0018] Another embodiment of the present disclosure has another aspect of a method for repairing a cut data line in a display panel. According to the embodiment, a method for repairing a display panel is provided, the display panel comprising: a plurality of scan lines extending in a first direction; a plurality of data lines extending in a second direction intersecting the first direction; a plurality of organic light emitting diodes; a plurality of pixel circuits respectively corresponding to the plurality of organic light emitting diodes, configured to respectively supply drive currents, and electrically connected to the plurality of data lines; a plurality of repair pixel circuits configured to generate repair drive currents when a faulty pixel circuit exists in the plurality of pixel circuits; and a plurality of repair lines extending in the first direction; the method comprising: electrically connecting two adjacently connected repair lines among the plurality of repair lines to respective one of two cut portions of the cut data lines among the plurality of data lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, in which:

[0020] Figure 1 FIG. 1 illustrates a display panel according to an embodiment of the present disclosure;

[0021] Figure 2 Diagram Figure 1 A situation in which one of the pixels in an embodiment of a display fails;

[0022] Figure 3 Diagram Figure 1 A case where one of the data lines in an embodiment of a display is cut off;

[0023] Figure 4 Diagram Figure 1 In another embodiment of the display, one of the pixels fails;

[0024] Figure 5 Diagram Figure 1 A case where one of the data lines in another embodiment of the display is cut off;

[0025] Figure 6 Diagram Figure 1 In another embodiment of the display, one of the pixels fails;

[0026] Figure 7 Diagram Figure 1 In another embodiment of the display device, one of the data lines is cut off;

[0027] Figure 8 Diagram Figure 1 In another embodiment of the display, one of the pixels fails;

[0028] Fig. 9 Diagram Figure 1 In another embodiment of the display device, one of the data lines is cut off;

[0029] Fig.10 Diagram Figure 1 A situation in which one of the pixels in a further embodiment of the display fails; and

[0030] Fig.11 Diagram Figure 1 In another embodiment of the display, one of the data lines is cut off. DETAILED DESCRIPTION

[0031] By referring to the detailed description and accompanying drawings of the following embodiments, the features of the inventive concept and its implementation method can be more easily understood. However, the inventive concept can be embodied in many different forms and should not be considered to be limited to the embodiments proposed herein. Hereinafter, the exemplary embodiments will be described in more detail with reference to the accompanying drawings, wherein the same reference numerals refer to the same elements throughout the accompanying drawings. However, the present invention can be embodied in various different forms and should not be considered to be limited to the embodiments shown herein. On the contrary, these embodiments are provided as examples so that the present disclosure will be sufficient and complete, and the aspects and features of the present invention will be fully conveyed to those skilled in the art. Therefore, for those of ordinary skill in the art, processes, elements and techniques that are not necessary for a complete understanding of the aspects and features of the present invention may not be described. Unless otherwise specified, throughout the accompanying drawings and written descriptions, the same reference numerals represent the same elements, and therefore their descriptions will not be repeated. In the drawings, for clarity, the relative sizes of elements, layers and regions may be exaggerated.

[0032] It will be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, the first element, first component, first region, first layer or first part described below may be referred to as the second element, second component, second region, second layer or second part without departing from the spirit and scope of the present invention.

[0033] For ease of illustration, spatially relative terms such as "below," "below," "below," "above," "on," etc. may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures. It will be understood that, in addition to the orientations described in the figures, the spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as being "below" or "below" or "below" other elements or features will then be oriented as being "above" the other elements or features. Thus, the example terms "below" and "below" may include both above and below orientations. The device may be otherwise oriented (e.g., rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0034] It will be understood that when an element or layer is referred to as being “on,” “connected to,” or “coupled to” another element or layer, it can be directly on, directly connected to, or directly coupled to the other element or layer, or one or more intervening elements or layers may also be present. Additionally, it will be understood that when an element or layer is referred to as being “between” two elements or layers, it can be the only element or layer between the two elements or layers, or one or more intervening elements or layers may also be present.

[0035] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. As used herein, the singular "one", "an" and "the" are intended to also include plural forms, unless otherwise expressly indicated. It will be further understood that, when used in this specification, the terms "include" and "comprise" illustrate the existence of stated features, integers, steps, operations, elements and / parts, but do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, parts and / or their groups. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. When placed before a column of elements, statements such as "at least one" modify the entire column of elements, rather than modifying the individual elements in the column.

[0036] As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation, rather than as terms of degree, and are intended to account for the inherent tolerances in measured or calculated values ​​recognized by those of ordinary skill in the art. Further, when describing embodiments of the present invention, the use of "may" refers to "one or more embodiments of the present invention." As used herein, the terms "use," "being used," and "used to" may be considered synonymous with the terms "utilizing," "being utilized," and "utilized to," respectively. In addition, the term "exemplary" is intended to indicate an example or illustration.

[0037] The electrical or electronic device and / or any other related device or component according to the embodiments of the present invention described herein can be implemented using any suitable hardware, firmware (e.g., application specific integrated circuit), software, or a combination of software, firmware, and hardware. For example, the various components of these devices can be formed on an integrated circuit (IC) chip or on a separate IC chip. Further, the various components of these devices can be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on a substrate. Further, the various components of these devices can be processes or threads in one or more computing devices that execute computer program instructions and interact with other system components to complete the various functions described herein, run on one or more processors. Computer program instructions are stored in a memory, which can be implemented in a computing device using a standard storage device (e.g., a random access memory (RAM)). Computer program instructions can also be stored in other non-transient computer-readable media (e.g., CD-ROM, flash drive, etc.). In addition, those skilled in the art should recognize that the functions of various computing devices can be combined or integrated into a single computing device, or the functions of a specific computing device can be distributed across one or more other computing devices without departing from the spirit and scope of the exemplary embodiments of the present invention.

[0038] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and / or this specification, and will not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.

[0039] Figure 1 A display panel according to an embodiment of the present disclosure is shown.

[0040] The display panel 100 according to the present embodiment is driven by a display panel driving unit 200 .

[0041] The display panel 100 includes scan lines (S1 to Sm, m is an integer equal to or greater than 3), data lines (D1 to Dn, n is an integer equal to or greater than 2), organic light emitting diodes (OLED(1,1) to OLED(m,n), hereinafter referred to as OLED), pixel circuits (PC(1,1) to PC(m,n), hereinafter referred to as PC), repair pixel circuits (RPC(1,0) to RPC(m,0), hereinafter referred to as RPC) and repair lines (Repair1 to Repairm, hereinafter referred to as Repair).

[0042] One electrode (eg, cathode electrode) of each of the organic light emitting diodes OLED is electrically coupled to the second power source ELVSS, and the other electrode (eg, anode electrode) is electrically coupled to the corresponding pixel circuit PC.

[0043] The pixel circuits PC correspond to the organic light emitting diodes OLED, respectively, are configured to supply a driving current to the corresponding organic light emitting diodes OLED, and are electrically connected to scan lines (S1 to Sm, hereinafter referred to as S) extending in a first direction, and are electrically connected to data lines (D1 to Dn, hereinafter referred to as D) extending in a second direction.

[0044] The pixel circuit (PC (a, b), a is a natural number equal to or less than m, b is a natural number equal to or less than n) is electrically coupled to the scan line Sa and the data line Db.

[0045] When a scan signal is supplied to the scan line Sa, the pixel circuit PC(a,b) receives the data voltage supplied to the data line Db, and the level of the driving current supplied by the pixel circuit PC(a,b) is determined based on the level of the data voltage supplied to the data line Db.

[0046] For convenience, the display panel 100 may be divided into a light emitting region EM and a repair pixel circuit region RPC.

[0047] According to the present embodiment, a first power line through which a first power voltage is generally supplied is omitted, and a repair data line may be additionally formed in the display panel 100 .

[0048] Hereinafter, the first direction may be horizontal, and the second direction may be vertical, although this is merely an example for the sake of explanation.

[0049] The display panel driving unit 200 generates and supplies a data voltage to the data line D, and generates and supplies a scan signal to the scan line S, thereby driving the display panel 100 .

[0050] In the present embodiment, the display panel driving unit 200 includes a timing controller 220, a data driving unit 230, and a scan driving unit 240. The timing controller 220, the data driving unit 230, and the scan driving unit 240 may be implemented as separate electronic devices, or the entire display panel driving unit 200 may be implemented as one electronic device (e.g., a display driver IC, etc.).

[0051] The timing controller 220 receives the image signal RGB and the timing signal Timing signals supplied from the outside. The timing signal "Timing signals" includes a vertical synchronization signal Vsync, a horizontal synchronization signal Hsync and a dot clock DOTCLK. The timing controller 220 generates timing control signals DCS and SCS based on the received timing signals Timing signals to control the timing operation of the data driving unit 230 and the scan driving unit 240.

[0052] The data driving unit 230 latches the image signal RGB input from the timing controller 220 to the data driving unit 230 in response to the data timing control signal DCS. The data driving unit 230 includes a plurality of source driver ICs, and the source driver ICs may be electrically coupled to the data lines D of the display panel 100 through a chip on glass (COG) process or a tape automated bonding (TAB) process.

[0053] The scan driving unit 240 sequentially supplies scan signals to the scan lines S in response to the scan timing control signal SCS. The scan driving unit 240 may be directly formed on the substrate of the display panel 100 using a gate in panel (GIP) method, or may be electrically coupled to the scan lines S of the display panel 100 using a TAB method.

[0054] Figure 2 Diagram Figure 1 In one embodiment of a display, one of the pixels fails.

[0055] exist Figure 2 and Figure 3 In the embodiment illustrated in FIG. 2 , repair data lines R-D1 to R-Dm extending in the first direction are additionally formed, and the repair lines Repair1 to Repairm include extending portions extending in the second direction.

[0056] For the convenience of description, it is assumed that all data lines D are not cut off, and it is assumed that the pixel circuit PC(2,1) fails. Therefore, the repair pixel circuit RPC(2,0) (hereinafter referred to as the corresponding repair pixel circuit) corresponds to the faulty pixel circuit PC(2,1), and is among the repair pixel circuits RPC(1,0) to RPC(m,0). Further, the repair data line R-D2 (hereinafter referred to as the corresponding repair data line) corresponds to the faulty pixel circuit PC(2,1), and is among the repair data lines R-D1 to R-Dm. The repair data lines R-D1 to R-Dm correspond to the repair pixel circuits RPC(1,0) to RPC(m,0), respectively.

[0057] In addition, the repair line Repair2 (hereinafter referred to as the corresponding repair line) corresponds to the faulty pixel circuit PC(2,1) and is among the repair lines Repair1 to Repairm. The organic light emitting diode OLED(2,1) (hereinafter referred to as the corresponding organic light emitting diode) corresponds to the faulty pixel circuit PC(2,1) and is among the organic light emitting diode OLED. In addition, the data line D1 (hereinafter referred to as the corresponding data line) corresponds to the faulty pixel circuit PC(2,1) and is among the data lines D.

[0058] The faulty pixel circuit PC(2,1) is electrically disconnected from the corresponding organic light emitting diode OLED(2,1), and thus the drive current Idc does not flow from the pixel circuit PC(2,1) to the organic light emitting diode OLED(2,1). That is, the faulty pixel circuit PC(2,1) does not generate the drive current Idc.

[0059] The repair data line R-D2 is electrically coupled to the data line D1 through a process such as laser shorting, and thus the repair pixel circuit RPC(2,0) receives a repair data voltage Vrepair corresponding to a data voltage supplied to the data line D1.

[0060] The repair pixel circuit RPC(2,0) generates a repair driving current Irepair, the repair line Repair2 is electrically connected to the corresponding organic light emitting diode OLED(2,1), and thereby the repair driving current Irepair is supplied to the corresponding organic light emitting diode OLED(2,1). Here, the level of the repair driving current Irepair is determined based on the level of the data voltage supplied to the data line D1. That is, even if the pixel circuit PC(2,1) fails, due to the respective electrical connection and electrical disconnection, the organic light emitting diode OLED(2,1) receives the repair driving current Irepair from the repair pixel circuit RPC(2,0), and thereby can emit light.

[0061] refer to Figure 2 Although the electrical disconnection, the supply of the repair data voltage Vrepair, and the generation and supply of the repair driving current Irepair are sequentially described, this description is merely an example.

[0062] Figure 3 Diagram Figure 1 A situation in which one of the data lines in an embodiment of a display is cut off.

[0063] For convenience of description, it can be assumed that all pixel circuits PC operate normally and only the data line D1 of the data line D is cut off. In addition, it can be assumed that the cut portion Cut is formed between the two repair lines Repair1 and Repair2, and thus the data line D1 includes a first portion D1-1 and a second portion D1-2 that are cut off / electrically isolated from each other.

[0064] Therefore, the repair lines connected to each other are the repair line Repair1 and the repair line Repair2. The extended portion of the repair line Repair1 is electrically connected to the extended portion of the repair line Repair2. The repair line Repair1 is electrically connected to the first portion D1-1 of the data line D1, and the repair line Repair2 is electrically connected to the second portion D1-2 of the data line D1. The electrical connection can be formed by a process such as laser shorting.

[0065] According to the electrical connection, the data voltage supplied from the first portion D1-1 is supplied to the second portion D1-2 through the repair lines Repair1 and Repair2. That is, even if there is a cut portion Cut, the data voltage can be supplied to the entire data line D1 through the repair lines Repair1 and Repair2.

[0066] Figure 4 Diagram Figure 1 In another embodiment of the display, one of the pixels fails.

[0067] exist Figure 4 and Figure 5 In the embodiment illustrated in FIG. 2 , the repair data lines RD1 ′ to RDm′ extending in the first direction are additionally formed, and the repair data lines RD1 ′ to RDm′ include extending portions extending in the second direction.

[0068] For convenience of description, it is assumed that all data lines D1 ′ to Dn′ (hereinafter referred to as data lines D′) are not cut off, and it is assumed that the pixel circuit PC( 2 , 1 )′ fails.

[0069] Therefore, the repair pixel circuit RPC(2,0)' (hereinafter referred to as the corresponding repair pixel circuit) corresponds to the faulty pixel circuit PC(2,1)' and is among the repair pixel circuits RPC(1,0)' to RPC(m,0)' (hereinafter referred to as RPC'), and the repair data line R-D2' (hereinafter referred to as the corresponding repair data line) corresponds to the faulty pixel circuit PC(2,1)' and is among the repair data lines R-D1' to R-Dm'. The repair data lines R-D1' to R-Dm' correspond to the repair pixel circuits RPC(1,0)' to RPC(m,0)', respectively.

[0070] In addition, the repair line Repair2' (hereinafter referred to as the corresponding repair line) corresponds to the faulty pixel circuit PC(2,1)' and is among the repair lines Repair1' to Repairm'. The organic light emitting diode OLED(2,1)' (hereinafter referred to as the corresponding organic light emitting diode) corresponds to the faulty pixel circuit PC(2,1)' and is among the organic light emitting diodes OLED(1,1)' to OLED(m,n)'. In addition, the data line D1' (hereinafter referred to as the corresponding data line) corresponds to the faulty pixel circuit PC(2,1)' and is among the data line D'.

[0071] The faulty pixel circuit PC(2,1)' is electrically disconnected from the corresponding organic light emitting diode OLED(2,1)', and therefore the drive current Idc' does not flow from the pixel circuit PC(2,1)' to the organic light emitting diode OLED(2,1)', and the faulty pixel circuit PC(2,1)' does not generate the drive current Idc'.

[0072] The repair data line RD2' is electrically coupled to the data line D1' through a process such as laser shorting, and thus the repair pixel circuit RPC(2,0)' receives a repair data voltage Vrepair' corresponding to a data voltage supplied to the data line D1'.

[0073] The repair pixel circuit RPC(2,0)' generates a repair drive current Irepair', and the repair line Repair2' is electrically connected to the corresponding organic light emitting diode OLED(2,1)', and thereby the repair drive current Irepair' is supplied to the corresponding organic light emitting diode OLED(2,1)'. Here, the level of the repair drive current Irepair' corresponds to the level of the data voltage supplied to the data line D1'. That is, even if the pixel circuit PC(2,1)' fails, due to the respective electrical connection and electrical disconnection, the organic light emitting diode OLED(2,1)' receives the repair drive current Irepair' from the repair pixel circuit RPC(2,0)', thereby emitting light.

[0074] refer to Figure 4 Although the electrical disconnection, the supply of the repair data voltage Vrepair', and the generation and supply of the repair driving current Irepair' are sequentially described, this is only an example for description.

[0075] Figure 5 Diagram Figure 1 In another embodiment of the display device, one of the data lines is cut off.

[0076] For the convenience of description, it can be assumed that all pixel circuits PC(1,1)' to PC(m,n)' operate normally, and only the data line D1' of the data line D' is cut off. In addition, it can be assumed that the cut-off portion Cut' is formed between the repair data line R-D1' and the repair data line R-D2', and it can be assumed that the data line D1' includes a first portion D1-1' and a second portion D1-2' that are cut off from each other. Therefore, the repair data line R-D1' and the repair data line R-D2' are connected to each other. In the present embodiment, the extended portion of the repair data line R-D1' is electrically connected to the extended portion of the repair data line R-D2'.

[0077] The repair data line R-D1' is electrically coupled to the first portion D1-1', and the repair data line R-D2' is electrically coupled to the second portion D1-2'. The electrical coupling may be formed by a process such as laser short-circuiting. According to the electrical coupling, the data voltage supplied from the first portion D1-1' is supplied to the second portion D1-2' through the repair data lines R-D1' and R-D2'. That is, even if the cut-off portion Cut' is formed, the data voltage may be supplied to the entire data line D1' through the repair data lines R-D1' and R-D2'.

[0078] The display panel 100 may be manufactured such that the repair data lines RD1 ′ to RDm′ are electrically coupled to each other within the display panel 100 .

[0079] Figure 6 Diagram Figure 1 In another embodiment of the display, one of the pixels fails.

[0080] For the convenience of description, among the pixel circuits, only the pixel circuits PC(1,1)” to PC(3,n)” are illustrated, and among the organic light emitting diodes, only the organic light emitting diodes OLED(1,1)” to OLED(3,n)” are illustrated. In addition, among the repair lines, only the repair lines Repair1” to Repair3” are illustrated, and among all the repair pixel circuits, only the repair pixel circuits RPC(1,0)” to RPC(3,0)” are illustrated.

[0081] exist Figure 6 and Figure 7 In the embodiment illustrated in the figure, the repair lines Repair1" to Repair3" are repair data lines extending in the first direction and include an extension portion extending in the second direction. In addition, the repair pixel circuits RPC(1,0)" to RPC(3,0)" respectively include repair connection lines R-C1" to R-C3".

[0082] exist Figure 6In the figure, for the convenience of description, it is assumed that all data lines D1" to Dn" are not cut off, and the pixel circuit PC(2,1)" fails. Therefore, the repair pixel circuit RPC(2,0)" (hereinafter referred to as the corresponding repair pixel circuit) corresponds to the faulty pixel circuit PC(2,1)", and is among the repair pixel circuits RPC(1,0)" to RPC(3,0)", and the repair line Repair2" (hereinafter referred to as the corresponding repair line) corresponds to the faulty pixel circuit PC(2,1)", and is among the repair lines Repair1" to Repair3". The repair line Repair1" (hereinafter referred to as the corresponding repair data line) corresponds to the faulty pixel circuit PC(2,1)", and is among the repair lines Repair1" to Repair3", and is adjacent to the repair line Repair2" in the second direction.

[0083] The organic light emitting diode OLED(2,1)" (hereinafter referred to as the corresponding organic light emitting diode) corresponds to the faulty pixel circuit PC(2,1)", and is among the organic light emitting diodes OLED(1,1)" to OLED(3,n)", and the data line D1" (hereinafter referred to as the corresponding data line) corresponds to the faulty pixel circuit PC(2,1)", and is among the data lines D1" to Dn".

[0084] The faulty pixel circuit PC(2,1)" is electrically disconnected from the corresponding organic light emitting diode OLED(2,1)", and therefore the driving current Idc" does not flow from the pixel circuit PC(2,1)" to the organic light emitting diode OLED(2,1)", and the faulty pixel circuit PC(2,1)" does not generate a driving current.

[0085] The repair line Repair1" is electrically connected to the data line D1", and the repair connection line R-C2" of the repair pixel circuit RPC(2,0)" is electrically connected to the extended portion of the repair line Repair1", and thereby the repair pixel circuit RPC(2,0)" is able to receive the repair data voltage Vrepair". The repair data voltage Vrepair" corresponds to the data voltage supplied to the data line D1".

[0086] The repair pixel circuit RPC(2,0)” generates a repair drive current Irepair”, and the repair line Repair2” is electrically connected to the corresponding organic light emitting diode OLED(2,1)”, and thereby the repair drive current Irepair” can be supplied to the corresponding organic light emitting diode OLED(2,1)”. Here, the level of the repair drive current Irepair” is determined based on the level of the data voltage supplied to the data line D1”. That is, even if the pixel circuit PC(2,1)” fails, due to the respective electrical connections and electrical disconnections, the organic light emitting diode OLED(2,1)” receives the repair drive current Irepair” from the repair pixel circuit RPC(2,0)”, thereby emitting light.

[0087] refer to Figure 6 Although the electrical disconnection, the supply of the repair data voltage Vrepair'', and the generation and supply of the repair driving current Irepair'' are sequentially described, this sequence is a non-limiting example.

[0088] Figure 7 Diagram Figure 1 In another embodiment of the display, one of the data lines is cut off.

[0089] For the convenience of description, it can be assumed that the pixel circuits PC(1,1)” to PC(3,n)” operate normally and only the data line D1” of the data line D” is cut off. In addition, it can be assumed that the cut portion Cut” is formed between the repair line Repair1” and the repair line Repair2”, and thus the data line D1” includes a first portion D1-1” and a second portion D1-2” that are electrically isolated from each other. Therefore, the repair lines Repair1” and Repair2” are connected to each other.

[0090] An extended portion of the repair line Repair1" is electrically connected to an extended portion of the repair line Repair2". The repair line Repair1" is electrically connected to the first portion D1-1", and the repair line Repair2" is electrically connected to the second portion D1-2". The electrical connection can be formed by a process such as laser short-circuiting. According to the electrical connection, the data voltage supplied from the first portion D1-1" is supplied to the second portion D1-2". Through the repair lines Repair1" and Repair2", that is, even if a cut-off portion Cut" is formed in the data line D1", the data voltage can be supplied to the entire data line D1" through the repair lines Repair1" and Repair2".

[0091] Figure 8 Diagram Figure 1 In another embodiment of the display, one of the pixels fails.

[0092] For the convenience of description, in the pixel circuit, only the pixel circuits PC(1,1)"' to PC(3,n)"' are illustrated, and in the organic light emitting diode, only the organic light emitting diodes OLED(1,1)"' to OLED(3,n)"' are illustrated. In addition, in the repair line, only the repair lines Repair1"' to Repair3"' are illustrated, and in the repair pixel circuit, only the repair pixel circuits RPC(1,0)"' to RPC(3,0)"' are illustrated.

[0093] exist Figure 8 and Fig. 9 In the embodiment illustrated in the figure, the repair lines Repair1"' to Repair3"' are repair data lines extending in the first direction and include an extension portion extending in the second direction. In addition, the repair pixel circuits RPC(1,0)"' to RPC(3,0)"' respectively include first repair connection lines R-C1-1"' to R-C3-1"' and second repair connection lines R-C1-2"' to R-C3-2"'.

[0094] exist Figure 8 In the figure, for the convenience of description, it is assumed that all the data lines D1''' to Dn''' are not cut off, and it is assumed that the pixel circuit PC(2,1)''' fails.

[0095] Therefore, the repair pixel circuit RPC(2,0)"' (hereinafter referred to as the corresponding repair pixel circuit) corresponds to the faulty pixel circuit PC(2,1)"', and is among the repair pixel circuits RPC(1,0)"' to RPC(3,0)"', and the repair line Repair2"' (hereinafter referred to as the corresponding repair line) corresponds to the faulty pixel circuit PC(2,1)"', and is among the repair lines Repair1"' to Repair3"'. The repair line Repair1"' (hereinafter referred to as the corresponding repair data line) corresponds to the faulty pixel circuit PC(2,1)"', and is among the repair lines Repair1"' to Repair3"', and is the first adjacent repair line Repair1"' adjacent to the repair line Repair2"' in the second direction (for example, the first adjacent repair line Repair1"' is above the repair line Repair2"'), or the repair line (hereinafter referred to as the second adjacent repair line) Repair3"' is adjacent to the repair line Repair2"' in a direction opposite to the second direction (for example, the second adjacent repair line Repair3"' is below the repair line Repair2"').

[0096] The organic light emitting diode OLED(2,1)"' (hereinafter referred to as the corresponding organic light emitting diode) corresponds to the faulty pixel circuit PC(2,1)"' and is among the organic light emitting diodes OLED(1,1)"' to OLED(3,n)"', and the data line D1"' (hereinafter referred to as the corresponding data line) corresponds to the faulty pixel circuit PC(2,1)"' and is among the data lines D1"' to Dn"'.

[0097] The pixel circuit PC(2,1)'' is electrically disconnected from the organic light emitting diode OLED(2,1)'', and therefore the drive current Idc'' cannot flow from the pixel circuit PC(2,1)'' to the organic light emitting diode OLED(2,1)'', and the faulty pixel circuit PC(2,1)'' does not generate the drive current Idc''.

[0098] The repair line Repair1"' is electrically connected to the data line D1"', and the first repair connection line R-C2-1"' of the repair pixel circuit RPC(2,0)"' is electrically connected to an extended portion of the repair line Repair1"'. Therefore, the repair pixel circuit RPC(2,0)"' is able to receive a repair data voltage Vrepair"' corresponding to the data voltage supplied to the data line D1"'.

[0099] The repair pixel circuit RPC(2,0)"' generates a repair drive current Irepair"', and the repair line Repair2"' is electrically connected to the corresponding organic light emitting diode OLED(2,1)"', and thereby the repair drive current Irepair"' is supplied to the corresponding organic light emitting diode OLED(2,1)"'. Here, the level of the repair drive current Irepair"' is determined based on the level of the data voltage supplied to the data line D1"'. That is, even if a fault occurs in the pixel circuit PC(2,1)"', due to the respective electrical connections and electrical disconnections, the organic light emitting diode OLED(2,1)"' receives the repair drive current Irepair"' from the repair pixel circuit RPC(2,0)"', thereby emitting light.

[0100] In addition, the repair pixel circuit RPC(1,0)'' is electrically disconnected from the repair line Repair1''. Figure 8 , the repair line Repair1'' is additionally electrically connected to the data line D1''', but this is only an example.

[0101] For example, if the pixel circuit PC(1,1)"' also fails, the repair line Repair1"' must supply the driving current to the organic light emitting diode OLED(1,1)"', and therefore the repair line Repair1"' cannot be connected to the data line D1"'. In this case, the repair line Repair3"' is connected to the data line D1"', and the second repair connection line R-C2-2"' of the repair pixel circuit RPC(2,0)"' is electrically connected to the extended portion of the repair line Repair3"', and thereby the repair pixel circuit RPC(2,0)"' is able to receive the repair data voltage Vrepair"'.

[0102] In the manufacturing process of the display panel 100, the second repair coupling line R-C2-2'' may be electrically disconnected from the repair line Repair3'', or alternatively, may be coupled to the repair line Repair3'''.

[0103] On the contrary, if the pixel circuit PC(3,1)'' also fails, the repair line Repair3'' may supply the driving current to the organic light emitting diode OLED(3,1)'', and thus the repair line Repair3''' may be electrically disconnected from the data line D1'''. In this case, Figure 8 As shown in the figure, the repair line Repair1"' can be electrically connected to the data line D1"', and the first repair connection line R-C2-1"' of the repair pixel circuit RPC(2,0)"' can be electrically connected to the extended portion of the repair line Repair1"'. That is, even if two pixel circuits adjacent to each other in the second direction both fail, the two pixel circuits can be repaired.

[0104] refer to Figure 8 Although the electrical disconnection, the supply of the repair data voltage Vrepair'', and the generation and supply of the repair driving current Irepair''' are sequentially described, the present invention is not limited thereto.

[0105] Fig. 9 Diagram Figure 1 In another embodiment of the display, one of the data lines is cut off.

[0106] For the convenience of description, it can be assumed that the pixel circuits PC(1,1)"' to PC(3,n)"' operate normally, and only the data line D1"' of the data line D"' is cut off. In addition, it can be assumed that the cut portion Cut"' is formed between the repair line Repair1"' and the repair line Repair2"', and thus the data line D1"' includes a first portion D1-1"' and a second portion D1-2"' that are electrically cut off from each other. Therefore, the repair line Repair1"' and the repair line Repair2"' are connected to each other, and the extended portion of the repair line Repair1"' is electrically connected to the extended portion of the repair line Repair2"'. The repair line Repair1"' is electrically connected to the first portion D1-1"', and the repair line Repair2"' is electrically connected to the second portion D1-2"'. The electrical connection can be formed by a process such as laser short-circuiting. According to the electrical connection, the data voltage supplied from the first portion D1-1'' is supplied to the second portion D1-2'' through the repair lines Repair1'' and Repair2''. That is, even if the cut-off portion Cut'' is formed, the data voltage can be supplied to the entire data line D1'' via the repair lines Repair1'' and Repair2''.

[0107] Fig.10 Diagram Figure 1 In another embodiment of the display, one of the pixels fails.

[0108] For the convenience of description, in the pixel circuit, only the pixel circuits PC(1,1)”” to PC(3,n)”” are illustrated, and in the organic light emitting diode, only the organic light emitting diodes OLED(1,1)”” to OLED(3,n)”” are illustrated. In addition, in the repair line, only the repair lines Repair1”” to Repair3”” are illustrated, and in the repair pixel circuit, only the repair pixel circuits RPC(1,0)”” to RPC(3,0)”” are illustrated.

[0109] exist Fig.10 and Fig.11 In the embodiment illustrated in the figure, the repair lines Repair1"" to Repair3"" are repair data lines and include an extension portion extending in the second direction. In addition, the repair pixel circuits RPC(1,0)"" to RPC(3,0)"" respectively include repair connection lines R-C1"" to R-C3"".

[0110] exist Fig.10In the figure, for the convenience of description, it is assumed that all data lines D1"" to Dn"" are not cut off, and the pixel circuit PC(3,1)"" fails. Therefore, the repair pixel circuit RPC(3,0)"" among the repair pixel circuits RPC(1,0)"" to RPC(3,0)"" (hereinafter referred to as the corresponding repair pixel circuit) corresponds to the faulty pixel circuit PC(3,1)"", and the repair line Repair3"" among the repair lines Repair1"" to Repair3"" (hereinafter referred to as the corresponding repair line) corresponds to the faulty pixel circuit PC(3,1)"".

[0111] The repair line Repair1"" (hereinafter referred to as the corresponding repair data line) among the repair lines Repair1"" to Repair3"" corresponds to the faulty pixel circuit PC(3,1)"" and is the repair line Repair1"" separated from the repair line Repair3"" in the second direction.

[0112] The organic light emitting diode OLED(3,1)"" (hereinafter referred to as the corresponding organic light emitting diode) corresponds to the faulty pixel circuit PC(3,1)"" and is among the organic light emitting diodes OLED(1,1)"" to OLED(3,1)"", and the data line D1"" (hereinafter referred to as the corresponding data line) corresponds to the faulty pixel circuit PC(3,1)"" and is among the data lines D1"" to Dn"".

[0113] The pixel circuit PC(3,1)"" is electrically disconnected from the organic light emitting diode OLED(3,1)"" and therefore the driving current Idc"" cannot flow from the pixel circuit PC(3,1)"" to the organic light emitting diode OLED(3,1)""". The faulty pixel circuit PC(3,1)"" does not generate a driving current.

[0114] The repair line Repair1"" is electrically connected to the data line D1"", the repair connection line R-C3"" of the repair pixel circuit RPC(3,0)"" is electrically connected to the extended portion of the repair line Repair1"" and thus the repair pixel circuit RPC(3,0)"" is able to receive a repair data voltage Vrepair"" corresponding to the data voltage supplied to the data line D1""

[0115] The repair pixel circuit RPC(3,0)”” generates a repair drive current Irepair””, and the repair line Repair3”” is electrically connected to the corresponding organic light emitting diode OLED(3,1)””, and thereby the repair drive current Irepair”” is supplied to the corresponding organic light emitting diode OLED(3,1)””. Here, the level of the repair drive current Irepair”” corresponds to the level of the data voltage supplied to the data line D1””. That is, even if the pixel circuit PC(3,1)”” fails, due to the respective electrical connections and electrical disconnections, the organic light emitting diode OLED(3,1)”” can also receive the repair drive current Irepair”” from the repair pixel circuit RPC(3,0)””, thereby emitting light.

[0116] Because the repair pixel circuit RPC(3,0)”” receives the repair data voltage Vrepair”” from the repair line Repair1”” which is arranged to be separated from the repair pixel circuit RPC(3,0)”” in the second direction, even if the pixel circuits PC(2,1)”” and PC(3,1)”” fail, the repair line Repair3”” can supply the repair driving current Irepair”” to the organic light emitting diode OLED(3,1)””.

[0117] refer to Fig.10 Although the electrical disconnection, the supply of the repair data voltage Vrepair””, and the generation and supply of the repair driving current Irepair”” are sequentially described, the sequential description is merely an example.

[0118] Fig.11 Diagram Figure 1 In another embodiment of the display, one of the data lines is cut off.

[0119] For the convenience of description, it can be assumed that the pixel circuits PC(1,1)"" to PC(3,n)"" operate normally, and only the data line D1"" of the data line D"" is cut off. In addition, it can be assumed that the cut portion Cut"" is formed between the repair line Repair1"" and the repair line Repair2"" and thus the data line D1"" includes a first portion D1-1"" and a second portion D1-2"" that are cut off from each other. Therefore, since the extended portion of the repair line Repair1"" is electrically connected to the extended portion of the repair line Repair2"" and since the repair line Repair1"" is electrically connected to the first portion D1-1"" and the repair line Repair2"" is electrically connected to the second portion D1-2", the repair line Repair1"" and the repair line Repair2"" are connected to each other.

[0120] The electrical connection can be formed by a process such as laser short-circuiting. According to the electrical connection, the data voltage supplied from the first part D1-1"" is also supplied to the second part D1-2"" through the repair lines Repair1"" and Repair2"". That is, even if the cut-off part Cut"" is formed, the data voltage can be supplied to the entire data line D1"" through the repair lines Repair1"" and Repair2"".

[0121] According to an embodiment of the present disclosure, according to a display panel and a repair method thereof, a repair data voltage may be supplied to a repair pixel circuit through a line extending in a horizontal direction.

[0122] In addition, according to an embodiment of the present disclosure, according to a display panel and a repair method thereof, even if the display panel is applied to an organic light emitting diode, the load can be reduced by short-circuiting the repair line according to a repair data voltage supplied to a repair pixel circuit through a line extending in a horizontal direction.

[0123] Example embodiments have been disclosed herein, and although specific terms are used, they are used and interpreted in a general and descriptive sense only and not for purposes of limitation. In some cases, as will be apparent to one of ordinary skill in the art to which this application is submitted, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments, unless expressly stated otherwise. Therefore, those skilled in the art will appreciate that various changes in form and details may be made without departing from the spirit and scope of the invention as set forth in the following claims and their equivalents.

Claims

1. A display panel, comprising: a plurality of scan lines extending in a first direction; a plurality of data lines extending in a second direction intersecting the first direction; a plurality of organic light emitting diodes; a plurality of pixel circuits respectively corresponding to the plurality of organic light emitting diodes, configured to respectively supply driving currents, and respectively electrically coupled to the plurality of scan lines and the plurality of data lines; a plurality of repair pixel circuits configured to generate a repair driving current when a faulty pixel circuit exists among the plurality of pixel circuits; Multiple repair lines; as well as Multiple repair data lines, wherein a corresponding repair pixel circuit of the plurality of repair pixel circuits corresponds to the faulty pixel circuit and is configured to generate the repair driving current based on a repair data voltage from a corresponding repair data line of the plurality of repair data lines corresponding to the faulty pixel circuit, and The repair driving current is configured to be supplied to a corresponding organic light emitting diode corresponding to the faulty pixel circuit among the plurality of organic light emitting diodes through a corresponding repair line among the plurality of repair lines corresponding to the faulty pixel circuit.

2. The display panel according to claim 1, wherein: the failed pixel circuit is electrically disconnected from the corresponding organic light emitting diode, wherein the corresponding repair data line is electrically connected to a corresponding data line among the plurality of data lines corresponding to the faulty pixel circuit, wherein the corresponding repair pixel circuit is configured to receive the repair data voltage, wherein the corresponding repair line is electrically connected to the corresponding organic light emitting diode, and Wherein, the repair driving current is configured to be supplied to the corresponding organic light emitting diode.

3. The display panel according to claim 1 or 2, wherein: Each of the plurality of repair lines extends in the first direction and includes an extending portion extending in the second direction, Wherein, when there is a cut data line among the plurality of data lines, the extension portions of two adjacently connected repair lines of the plurality of repair lines are electrically connected to respective one portions of the two cut portions of the cut data line, and The voltage supplied to any one of the two cut-off parts is also supplied to the other of the two cut-off parts through the two adjacently connected repair lines.

4. The display panel according to claim 1, wherein: Each of the plurality of repair data lines extends in the first direction and includes an extending portion extending in the second direction, Wherein, when there is a cut data line among the plurality of data lines, the extended portions of two adjacently connected repair data lines of the plurality of repair data lines are electrically connected to respective one portions of the two cut portions of the cut data line, and The voltage supplied to any one of the two cut-off parts is also supplied to the other of the two cut-off parts through the two adjacently connected repair data lines.

5. The display panel according to claim 1, wherein: The plurality of repair data lines include the plurality of repair lines, Each repair pixel circuit includes a repair connection line, and Wherein, the corresponding repair data line is adjacent to the corresponding repair line in the second direction.

6. The display panel according to claim 5, wherein: The corresponding repair data line is electrically coupled to a corresponding data line among the plurality of data lines corresponding to the failed pixel circuit, wherein the corresponding repair line is electrically connected to a corresponding repair connection line among the repair connection lines corresponding to the corresponding repair pixel circuit, wherein the corresponding repair pixel circuit is configured to receive the repair data voltage, wherein the faulty pixel circuit is electrically disconnected from the corresponding organic light emitting diode, and Wherein, the corresponding repair line is electrically connected to the corresponding organic light emitting diode.

7. The display panel according to claim 1, wherein: The plurality of repair data lines include the plurality of repair lines, Each repair pixel circuit includes a first repair connection line and a second repair connection line, and The corresponding repair data line is a first adjacent repair line adjacent to the corresponding repair line in the second direction or a second adjacent repair line adjacent to the corresponding repair line in a direction opposite to the second direction.

8. The display panel according to claim 7, wherein: The first adjacent repair line or the second adjacent repair line is electrically coupled to a corresponding data line among the plurality of data lines corresponding to the failed pixel circuit, wherein the first adjacent repair line or the second adjacent repair line is electrically connected to the first repair connection line or the second repair connection line of the corresponding repair pixel circuit, wherein the corresponding repair pixel circuit is configured to receive the repair data voltage, wherein the faulty pixel circuit is electrically disconnected from the corresponding organic light emitting diode, wherein the corresponding repair line is electrically connected to the corresponding organic light emitting diode, and Wherein, the repair driving current is configured to be supplied to the corresponding organic light emitting diode.

9. The display panel according to claim 7, wherein: Each of the plurality of repair lines extends in the first direction and includes an extending portion extending in the second direction, Wherein, when there is a cut data line among the plurality of data lines, the extension portions of two adjacently connected repair lines of the plurality of repair lines are electrically connected to respective one portions of the two cut portions of the cut data line, and The voltage supplied to any one of the two cut-off parts is also supplied to the other of the two cut-off parts through the two adjacently connected repair lines.

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