Illuminated display device

Abstract

A light-emitting display device is provided that can use a voltage supply line to repair a broken gate line. The light-emitting display device includes a gate line disposed along a first direction of a light-emitting display panel; a voltage supply line disposed in the light-emitting display panel along a second direction different from the first direction; at least three pixels disposed between two adjacent voltage supply lines and connected to the gate line; a first branch voltage supply line extending from the first voltage supply line of the two voltage supply lines along the first direction and connected to at least one pixel of the at least three pixels adjacent to the first voltage supply line; and a second branch voltage supply line extending from the second voltage supply line of the two voltage supply lines along the first direction and connected to at least one pixel of the at least three pixels adjacent to the second voltage supply line, wherein the end of the first branch voltage supply line is adjacent to the end of the second branch voltage supply line.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2020-0177037, filed on December 17, 2020, which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to a light-emitting display panel and a light-emitting display device using the light-emitting display panel. Background Technology

[0004] A light-emitting display device is a device that outputs light by using light-emitting elements, and includes a light-emitting display panel on which the light-emitting elements are provided.

[0005] Light-emitting display panels include different types of lines, such as data lines, gate lines, and power lines.

[0006] The gate lines are all connected to the pixels arranged in a horizontal row, and the data voltage is only charged into the pixel when a gate pulse is provided to the gate line. Therefore, when one gate line is disconnected and thus broken, the pixel in the corresponding horizontal row will be unable to output normal light. Summary of the Invention

[0007] Accordingly, this disclosure is made in view of the above problems, and the purpose of this disclosure is to provide a light-emitting display device that repairs a broken gate line by using a power line connection.

[0008] From the following description of the present disclosure, those skilled in the art will clearly understand the present disclosure as described above and its additional features.

[0009] According to one aspect of this disclosure, the above and other objectives can be achieved by providing a light-emitting display device, the light-emitting display device comprising a gate line disposed along a first direction of a light-emitting display panel, a voltage supply line disposed in the light-emitting display panel along a second direction different from the first direction, at least three pixels disposed between two adjacent voltage supply lines and connected to the gate line, a first branch voltage supply line extending from a first voltage supply line of the two voltage supply lines along the first direction and connected to at least one pixel of the at least three pixels adjacent to the first voltage supply line, and a second branch voltage supply line extending from a second voltage supply line of the two voltage supply lines along the first direction and connected to at least one pixel of the at least three pixels adjacent to the second voltage supply line, wherein the ends of the first branch voltage supply line and the ends of the second branch voltage supply line are adjacent to each other. Attached Figure Description

[0010] The above and other features and advantages of this disclosure will become clearer from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0011] Figure 1 This is an example diagram showing the structure of a light-emitting display device according to the present disclosure;

[0012] Figure 2 This is an example diagram showing a pixel structure applied to a light-emitting display device according to the present disclosure;

[0013] Figure 3A This is an example diagram showing a light-emitting display panel applied to a light-emitting display device according to the present disclosure;

[0014] Figure 3B This is an example diagram showing a restored luminous display panel;

[0015] Figure 4 This is an example diagram showing four pixels arranged in a light-emitting display panel applied to a light-emitting display device according to the present disclosure;

[0016] Figures 5A to 5E It shows the manufacturing process. Figure 4 Example diagram of the method for using a light-emitting display panel;

[0017] Figure 6A It shows the result of Figure 5A The light shielding electrode shown is Figure 5C An example diagram of a pixel composed of gate electrodes;

[0018] Figure 6B This is an example diagram showing a restored luminous display panel;

[0019] Figure 7 It shows Figure 4 A magnified view of region Y shown in the diagram;

[0020] Figure 8A It shows along Figure 7 An example diagram of a cross-section taken by line A-A' shown in the figure;

[0021] Figure 8B It shows along Figure 7 Another example of a cross-section taken by line A-A' shown in the diagram;

[0022] Figure 9 This is an example diagram showing four pixels arranged in a light-emitting display panel applied to a light-emitting display device according to the present disclosure;

[0023] Figures 10A to 10E It shows the manufacturing process. Figure 9Example diagram of the method for using a light-emitting display panel;

[0024] Figure 11A It shows the result of Figure 10A The light shielding electrode shown is Figure 10C An example diagram of a pixel composed of gate electrodes;

[0025] Figure 11B This is a schematic diagram showing a repaired luminescent display panel;

[0026] Figure 12 It shows Figure 9 A magnified view of region Y shown in the diagram;

[0027] Figure 13A It shows along Figure 12 An example diagram of a cross-section taken by line B-B' shown in the figure;

[0028] Figure 13B It shows along Figure 12 Another example diagram of the cross section taken by line B-B' shown. Detailed Implementation

[0029] The advantages and features of this disclosure and its implementation methods are illustrated below by means of the accompanying drawings. However, this disclosure may be implemented in different forms and should not be construed as limited to the aspects set forth herein. Rather, these aspects are provided to make this disclosure comprehensive and complete, and to fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is limited only by the scope of the claims.

[0030] In the accompanying drawings, even if the same or similar elements are described in different drawings, these elements will be represented by the same reference numerals. Whenever possible, the same reference numerals will be used throughout the drawings to refer to the same or similar parts.

[0031] The shapes, dimensions, scales, angles, and quantities disclosed in the accompanying drawings, which are used to describe various aspects of this disclosure, are merely examples, and therefore this disclosure is not limited to the details illustrated. The same reference numerals throughout the specification refer to the same parts. In the following description, detailed descriptions of related known functions or configurations will be omitted if it is determined that such detailed descriptions would unnecessarily confuse the points of this disclosure. Where the terms "comprising," "having," and "including" are used as described in this specification, additional terms may be added unless "only" is used. Unless otherwise indicated, singular terms may include plural forms.

[0032] When interpreting an element, even if it is not explicitly described, the element is interpreted as including a range of error.

[0033] When describing positional relationships, such as "above," "over," "below," and "after," one or more additional parts may be placed between two parts unless "immediately following" or "directly" is used.

[0034] When describing temporal relationships, such as describing time sequence as “after,” “following,” “next,” and “before,” discontinuous situations may be included unless “immediately after” or “directly” is used.

[0035] It should be understood that the term "at least one" includes all combinations associated with any one item. For example, "at least one of the first element, the second element, and the third element" can include all combinations of two or more elements selected from the first, second, and third elements, as well as each of the first, second, and third elements.

[0036] It should be understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and a second element may also be referred to as a first element.

[0037] Those skilled in the art will fully understand that the features of different aspects of this disclosure can be partially or completely coupled or combined with each other, and can operate on each other in different ways and be driven technically. The aspects of this disclosure can be implemented either independently or in an interdependent manner.

[0038] The various aspects of this disclosure will now be described in detail with reference to the accompanying drawings.

[0039] Figure 1 This is an example diagram showing the structure of a light-emitting display device according to the present disclosure. Figure 2 This is an example diagram showing a pixel structure applied to a light-emitting display device according to the present disclosure.

[0040] The light-emitting display device according to this disclosure can be used to construct various electronic devices. As examples, these electronic devices may include smartphones, tablets, televisions, or monitors, etc.

[0041] like Figure 1As shown, the light-emitting display device according to this disclosure includes a light-emitting display panel 100 with pixels 101 for displaying images, a data driver 300 for providing a data voltage Vdata to data lines DL1 to DLd provided in the light-emitting display panel 100, a gate driver 200 for providing a gate voltage to gate lines GL1 to GLg provided in the light-emitting display panel 100, and a controller 400 for controlling the data driver 300 and the gate driver 200, wherein g and d are natural numbers.

[0042] The light-emitting display panel 100 includes a display area 102 and a non-display area 103. The display area 102 is provided with gate lines GL1 to GLg, data lines DL1 to DLd, voltage supply line PLA, and pixels 101.

[0043] The display area 102 outputs the image, while the non-display area 103 surrounds the display area 102 and does not output the image.

[0044] like Figure 2 As shown, the pixel 101 disposed in the light-emitting display panel 100 may include a light-emitting element ED, a switching transistor Tsw1, a storage capacitor Cst, a driving transistor Tdr, and a sensing transistor Tsw2. That is, the pixel 101 may include a pixel driving unit PDC and a light-emitting unit, wherein the pixel driving unit PDC may include a switching transistor Tsw1, a capacitor Cst, a driving transistor Tdr, and a sensing transistor Tsw2, and the light-emitting unit may include a light-emitting element ED.

[0045] The brightness of the light can be controlled according to the magnitude of the current I flowing in the light-emitting element ED. The magnitude of the current I flowing in the light-emitting element ED can be controlled by the driving transistor Tdr, and the driving transistor Tdr can be controlled by the data voltage Vdata.

[0046] The light-emitting element (ED) may include any one of an organic light-emitting layer, an inorganic light-emitting layer, and a quantum dot light-emitting layer, or may include a deposited or hybrid structure of an organic light-emitting layer (or an inorganic light-emitting layer) and a quantum dot light-emitting layer.

[0047] Furthermore, the light-emitting element (ED) can emit light corresponding to any of the various colors (such as red, green, and blue), or it can emit white light.

[0048] The switching transistor Tsw1, which constitutes the pixel driving unit PDC, is turned on or off by the gate signal GS provided to the gate line GL, and when the switching transistor Tsw1 is turned on, the data voltage Vdata provided through the data line DL is provided to the driving transistor Tdr.

[0049] The first voltage EVDD is supplied to the driving transistor Tdr and the light-emitting element ED through the voltage supply line PLA, and the second voltage EVSS is supplied to the light-emitting element ED through the voltage line PLB. The voltage supply lines PLA and PLB can be connected to the power supply unit through the data driver 300 or the gate driver 200, or they can be directly connected to the power supply unit.

[0050] The sensing control signal SS, provided through the sensing control line SCL, turns the sensing transistor Tsw2 on or off, and the sensing line SL can be connected to the sensing transistor Tsw2.

[0051] The reference voltage Vref can be provided to pixel 101 through the sensing line SL, and the sensing signal related to the characteristic change of the driving transistor Tdr can be transmitted to the sensing line SL through the sensing transistor Tsw2.

[0052] It is possible to Figure 2 The structure shown is used to form pixel 101 applied in this disclosure, but this disclosure is not limited thereto. Therefore, in addition to Figure 2 In addition to the structure shown, the pixels used in this disclosure can be changed in different ways.

[0053] In the light-emitting display panel 100, a pixel area is formed in which pixels 101 are provided, and signal lines are formed for providing various signals to the pixel driving unit PDC provided in the pixels 101.

[0054] For example, in containing Figure 2 In the light-emitting display panel of pixel 101 shown, the signal lines may include a gate line GL, a data line DL, a sensing control line SCL, a voltage supply line PLA, a voltage line PLB, and a sensing line SL. The gate line GL can be used as the sensing control line SCL, and in this case, the gate line GL and the sensing control line SCL are formed as a single line. That is, the gate line GL can be connected to the switching transistor Tsw1 and the sensing transistor Tsw2.

[0055] Next, the controller 400 includes a data modulator that rearranges the input image data transmitted from the external system using a timing synchronization signal sent from the external system and provides the rearranged image data to the data driver 300; a control signal generator that uses the timing synchronization signal to generate a gate control signal GCS and a data control signal DCS; an input unit that receives the timing synchronization signal and the input image data transmitted from the external system and transmits them to the data modulator and the control signal generator; and an output unit that outputs the image data generated by the data modulator and the control signals DCS and GCS generated by the control signal generator to the data driver 300 or the gate driver 200.

[0056] An external system is used to drive the controller 400 and the electronic device. That is, when the electronic device is a smartphone, the external system receives various voice, image, and text information via a wireless communication network and transmits the received image information to the controller 400. The image information can be input image data.

[0057] A data driver 300 can be provided in a chip-on-film attached to the light-emitting display panel 100, and the data driver 300 can also be connected to a main substrate on which a controller 400 is provided. In this case, lines for electrically connecting the controller 400, the data driver 300, and the light-emitting display panel 100 are provided in the chip-on-film. For this purpose, these lines are electrically connected to pads provided in the main substrate and the light-emitting display panel 100. The main substrate is electrically connected to an external substrate on which an external system is mounted.

[0058] The data driver 300 can be directly mounted on the light-emitting display panel 100 and then electrically connected to the main substrate.

[0059] However, the data driver 300 can be integrated with the controller 400 into an integrated circuit, which can be provided on a chip-on-film, or the integrated circuit can be directly mounted on the light-emitting display panel 100.

[0060] The data driver 300 converts image data Data input from the controller 400 into a data voltage Vdata, and provides a horizontal row of data voltage Vdata to data lines DL1 to DLd in each horizontal cycle of providing a gate pulse to the gate line GL. For example, the data driver 300 uses a gamma voltage provided by a gamma voltage generator to convert image data Data into a data voltage Vdata, and outputs the data voltage Vdata to data lines DL1 to DLd during the image output period.

[0061] In this context, a horizontal row refers to a virtual row formed along the gate line GL. Pixels connected to the gate line GL are arranged in rows along this horizontal row. In other words, a horizontal row refers to a virtual row corresponding to the gate line GL.

[0062] The gate driver 200 can then be provided as an integrated circuit and can be mounted on the non-display area 103, or it can be directly embedded in the non-display area 103 using an in-panel gate (GIP) scheme. When using the in-panel gate scheme, the transistors constituting the gate driver 200 can be provided in the non-display area 103 using the same process as that used to provide transistors in the individual pixels 101 of the display area 102.

[0063] When a gate pulse generated by the gate driver 200 is provided to the gate of the switching transistor Tsw1 disposed in the pixel 101, the switching transistor Tsw1 is turned on. When a gate turn-off signal is provided to the switching transistor Tsw1, the switching transistor Tsw1 is turned off. The gate signal GS provided to the gate line GL includes the gate pulse and the gate turn-off signal.

[0064] Finally, the external system is used to drive the controller 400 and the electronic device. That is, when the electronic device is a smartphone, the external system receives various voice, image, and text information via a wireless communication network and transmits the received image information to the controller 400. The image information can be input image data.

[0065] In the following text, we will discuss the different types of light-emitting display panels that have Figure 2 The pixel structure of the light-emitting display panel shown is described as an example of a light-emitting display panel according to this disclosure.

[0066] Figure 3A This is an example diagram showing a light-emitting display panel applied to a light-emitting display device according to the present disclosure. Figure 3B This is an example diagram showing a repaired luminescent display panel.

[0067] like Figure 1 , 2 As shown in 3A and 3B, the display device according to this disclosure includes a gate line GL disposed along a first direction of a light-emitting display panel 100, a voltage supply line PLA disposed in the light-emitting display panel 100 along a second direction different from the first direction, at least three pixels disposed between two adjacent voltage supply lines PLA1 and PLA2 and connected to the gate line GL, a first branch voltage supply line 105 extending from the first voltage supply line PLA1 of the two voltage supply lines PLA1 and PLA2 along the first direction and connected to at least one pixel of the at least three pixels adjacent to the first voltage supply line PLA1, and a second branch voltage supply line 106 extending from the second voltage supply line PLA2 of the two voltage supply lines PLA1 and PLA2 along the first direction and connected to at least one pixel of the at least three pixels adjacent to the second voltage supply line PLA2. The ends of the first branch voltage supply line 105 and the second branch voltage supply line 106 are adjacent to each other.

[0068] In the following description, the first direction refers to the direction in which the gate line extends, such as the horizontal direction of the light-emitting display panel 100, and the second direction refers to the direction in which the voltage supply line PLA extends, such as the vertical direction of the light-emitting display panel 100.

[0069] In this configuration, at least three pixels can be positioned between the two voltage supply lines PLA1 and PLA2. Figure 3A and 3B The image shows a light-emitting display panel with four pixels positioned between the two voltage supply lines PLA1 and PLA2.

[0070] At least three pixels of different colors can be set between the two voltage supply lines PLA1 and PLA2. For ease of description, as... Figure 3A and 3B As shown, as an example of this disclosure, a light-emitting display device in which four pixels 101 are disposed between two voltage supply lines PLA1 and PLA2 will be described.

[0071] The voltage supply line located to the left of the four pixels will be referred to as the first voltage supply line PLA1, and the voltage supply line located to the right of the four pixels will be referred to as the second voltage supply line PLA2.

[0072] The first branch voltage supply line 105 extends from the first voltage supply line PLA1 along the first direction and is connected to the pixel driving units PDC of the two pixels R and W adjacent to the first voltage supply line PLA1.

[0073] The second branch voltage supply line 106 extends from the second voltage supply line PLA2 along the first direction and is connected to the pixel driving units PDC of the two pixels G and B adjacent to the second voltage supply line PLA2.

[0074] In other words, the first voltage supply line PLA1 and the second voltage supply line PLA2 are connected to the pixels R, W, G and B located between the first voltage supply line PLA1 and the second voltage supply line PLA2.

[0075] Gate line GL is connected to the pixel driving unit PDC of the pixel positioned along gate line GL. Figure 3A and 3B In the displayed light-emitting display panel, four pixels are connected to the gate line GL.

[0076] Figure 3A This shows a disconnection in the gate line between the white pixel W and the green pixel G. In the following text, this disconnection is referred to as a gate line break.

[0077] The gate signal GS cannot be provided through a disconnected gate line. Therefore, normal light cannot be output from a pixel connected to a disconnected gate line.

[0078] Figure 3B The diagram shows a repair process that can be performed via repair line 107 to interconnect the first branch voltage supply line 105 and the second branch voltage supply line 106 that are adjacent to each other.

[0079] In other words, during the repair process, the gate line GL is connected to the first voltage supply line PLA1 and the second voltage supply line PLA2. The first voltage supply line PLA1, located at the upper end of the gate line GL, is separated from the first branch voltage supply line 105. The second voltage supply line PLA2, located at the upper end of the gate line GL, is separated from the second branch voltage supply line 106. The first voltage supply line PLA1 and the second voltage supply line PLA2, located at the lower end of the gate line GL, are disconnected. The first branch voltage supply line 105 and the second branch voltage supply line 106, which are adjacent to each other, are connected to each other through the repair line 107.

[0080] In this case, such as Figure 3B As shown, the gate signal GS supplied from the gate driver 200 located to the left of the first voltage supply line PLA1 can be provided to the pixel 101 located to the right of the second voltage supply line PLA2 through the first voltage supply line PLA1 connected to the gate line GL, the first branch voltage supply line 105 connected to the first voltage supply line PLA1, the repair line 107 connected to the first branch voltage supply line 105, the second branch voltage supply line 106 connected to the repair line 107, the second voltage supply line PLA2 connected to the second branch voltage supply line 106, and the gate line GL connected to the second voltage supply line PLA2.

[0081] In other words, according to this disclosure, when the gate line between the first voltage supply line PLA1 and the second voltage supply line PLA2 is disconnected, the gate signal GS cannot be provided to the four pixels R, W, G and B located between the first voltage supply line PLA1 and the second voltage supply line PLA2, but the gate signal GS can be provided to other pixels connected to the gate line.

[0082] Therefore, according to this disclosure, in pixels connected to disconnected gate lines, light can be normally output from pixels other than the four pixels. This improves the yield of the light-emitting display device.

[0083] The following will be referenced Figures 4 to 13B To describe the reference in detail Figure 3B The structure of this disclosure is described.

[0084] Figure 4 This is an example diagram showing four pixels arranged in a light-emitting display panel applied to a light-emitting display device according to the present disclosure. Figures 5A to 5E It shows the manufacturing process. Figure 4 An example diagram of a method for using a light-emitting display panel.

[0085] As described above, the light-emitting display device according to this disclosure includes a gate line GL, a first voltage supply line PLA1, a second voltage supply line PLA2, four pixels R, W, G and B disposed between two adjacent voltage supply lines PLA1 and PLA2 and connected to the gate line GL, a first branch voltage supply line 105 and a second branch voltage supply line 106, wherein the end of the first branch voltage supply line 105 and the end of the second branch voltage supply line 106 are adjacent to each other.

[0086] When the gate line GL connected to the four pixels 101 is not disconnected, such as Figure 4 As shown, the first voltage EVDD supplied by the first voltage supply line PLA1 is provided to the red pixel R and the white pixel W through the first branch voltage supply line 105, and the first voltage EVDD supplied by the second voltage supply line PLA2 is provided to the green pixel G and the blue pixel B through the second branch voltage supply line 106. Furthermore, the gate signal GS is provided to the four pixels R, W, G, and B, as well as all pixels connected to the gate line GL, through the gate line GL.

[0087] In other words, Figure 4 The image shows a light-emitting display panel 100 in its normal state with the gate line GL not disconnected.

[0088] In this case, Figure 4 In the area indicated by Y, the end of the first branch voltage supply line 105 and the end of the second branch voltage supply line 106 are adjacent to each other, but are not connected to each other.

[0089] Now refer to Figures 5A to 5E Here is a brief description of a method for manufacturing a light-emitting display panel having the structure described above.

[0090] First, such as Figure 5A As shown, an optical shielding electrode comprising a first optical shielding voltage supply line PLA1a, a second optical shielding voltage supply line PLA2a, and a repair line 107 is provided on the substrate.

[0091] The first optical shielding voltage supply line PLA1a is included in the first voltage supply line PLA1, and the second optical shielding voltage supply line PLA2a is included in the second voltage supply line PLA2.

[0092] After covering the optically shielded electrodes with a buffer layer, such as Figure 5B As shown, an active electrode 133, which serves as a semiconductor for the transistor constituting the pixel driving unit PDC, is provided at the upper end of the buffer layer. The active electrode 133 can be a two-layer structure consisting of a metal layer and a semiconductor layer, but is not limited to this; the active electrode 133 can also be a single layer containing only a semiconductor layer.

[0093] Next, after covering the active electrode with a gate insulating layer, as... Figure 5C As shown, a gate electrode comprising a first gate voltage supply line PLA1b, a second gate voltage supply line PLA2b, a first branch voltage supply line 105, a second branch voltage supply line 106, and a gate line GL is provided at the upper end of the gate insulating layer.

[0094] The first gate voltage supply line PLA1b is included in the first voltage supply line PLA1, and the second gate voltage supply line PLA2b is included in the second voltage supply line PLA2.

[0095] In particular, such as Figure 5C As shown, the ends of the first branch voltage supply line 105 and the second branch voltage supply line 106 are adjacent to each other, but are not connected to each other.

[0096] In this case, the ends of the first branch voltage supply line 105 and the second branch voltage supply line 106 are configured to be connected to... Figure 5A The repair line 107 shown overlaps.

[0097] Next, the gate electrode is covered with a passivation layer, and then the passivation layer is covered with a planarization layer.

[0098] like Figure 5D As shown, contact holes are provided in the passivation layer and the planarization layer, the contact holes including those for... Figure 5A The first optically shielded voltage supply line PLA1a shown is Figure 5C The first voltage supply line contact hole PLA1c, connected to the first gate voltage supply line PLA1b shown, is used to... Figure 5A The second optically shielded voltage supply line PLA2a shown is Figure 5C The second voltage supply line contact hole PLA2c, which is connected to the second gate voltage supply line PLA2b shown, and is used to connect the second gate voltage supply line PLA2b to the second voltage supply line contact hole PLA2c. Figure 5A The repair line 107 shown is Figure 5C The first contact hole 107a is connected to the first branch voltage supply line 105 shown.

[0099] In other words, the first voltage supply line PLA1 includes a first optical shielding voltage supply line PLA1a and a first gate voltage supply line PLA1b that overlap with each other, and the second voltage supply line PLA2 includes a second optical shielding voltage supply line PLA2a and a second gate voltage supply line PLA2b that overlap with each other.

[0100] Finally, an anode 150 constituting the light-emitting element ED and a pixel electrode including the first pixel electrode 107b are provided on the planarization layer.

[0101] The first pixel electrode 107b is disposed in the first contact hole 107a for using to... Figure 5A The repair line 107 shown is Figure 5C The first branch voltage supply line 105 shown is connected.

[0102] A light-emitting layer constituting a light-emitting element ED is provided at the upper end of the anode 150, and a cathode constituting a light-emitting element ED is provided at the upper end of the light-emitting layer.

[0103] At least one encapsulation film is provided at the upper end of the cathode, thereby forming a light-emitting display panel.

[0104] Figure 6A It shows the result of Figure 5A The optical shielding electrode shown and Figure 5C An example diagram of a pixel composed of gate electrodes is shown. Specifically, in... Figure 6A Only the text in the original is displayed. Figure 5A The optical shielding electrode shown includes the first optical shielding voltage supply line PLA1a, the second optical shielding voltage supply line PLA2a, and the repair line 107. Furthermore, in... Figure 6A Only the text in the original is displayed. Figure 5C The diagram shows the first gate voltage supply line PLA1b, the first branch voltage supply line 105, the second gate voltage supply line PLA2b, the second branch voltage supply line 106, and the gate line GL. That is, in... Figure 6A Only the basic elements required to describe this disclosure are shown. Figure 6B This is an example image showing a restored luminescent display panel. That is, in Figure 6B middle, Figure 6A The first branch voltage supply line 105 and the second branch voltage supply line 106 shown are interconnected by the repair line 107.

[0105] First of all, Figure 6A In the illustrated light-emitting display panel, the first voltage EVDD supplied by the first voltage supply line PLA1 is provided to the red pixel R and the white pixel W located to the right of the first voltage supply line PLA1 via the first branch voltage supply line 105 located to the right of the first voltage supply line PLA1. The first voltage EVDD supplied by the first voltage supply line PLA1 is also provided to the green pixel G and the blue pixel B located to the left of the first voltage supply line PLA1.

[0106] The first voltage EVDD supplied by the second voltage supply line PLA2 is provided to the green pixel G and the blue pixel B located to the left of the second voltage supply line PLA2 via the second branch voltage supply line 106 located to the left of the second voltage supply line PLA2. The first voltage EVDD supplied by the second voltage supply line PLA2 is also provided to the red pixel R and the white pixel W located to the right of the second voltage supply line PLA2.

[0107] In this case, Figure 4 In the light-emitting display panel shown, the gate line GL is connected in the area indicated by X, but... Figure 6A In the illustrated light-emitting display panel, the gate line GL is disconnected in the area indicated by X. Therefore, the gate signal GS supplied from the gate driver 200 located to the left of the first voltage supply line PLA1 is not provided to the pixel located to the right of the area indicated by X.

[0108] In this case, such as Figure 6B As shown, a repair process can be performed that connects the first branch voltage supply line 105 and the second branch voltage supply line 106, which are adjacent to each other, through the repair line 107.

[0109] In the repair process, the first branch voltage supply line 105 and the second branch voltage supply line 106 are interconnected through the repair line 107. The gate line GL and the first optical shielding voltage supply line PLA1a are interconnected in the area where the gate line GL and the first optical shielding voltage supply line PLA1a intersect. The gate line GL and the second optical shielding voltage supply line PLA2a are interconnected in the area where the gate line GL and the second optical shielding voltage supply line PLA2a intersect.

[0110] Since the first optical shielding voltage supply line PLA1a is connected to the first gate voltage supply line PLA1b, the gate line GL is connected to the first gate voltage supply line PLA1b.

[0111] Since the second optical shielding voltage supply line PLA2a is connected to the second gate voltage supply line PLA2b, the gate line GL is connected to the second gate voltage supply line PLA2b.

[0112] In the region where the first branch voltage supply line 105 branches off from the first gate voltage supply line PLA1b, the first gate voltage supply line PLA1b is disconnected, and the first optical shielding voltage supply line PLA1a is also disconnected. Therefore, from Figure 6B The first voltage EVDD transmitted from the upper end of the illustrated light-emitting display panel is not supplied to the red pixel R and the white pixel W via the first branch voltage supply line 105. In this case, the disconnected first voltage supply line PLA1 is connected to the branch voltage supply line extending to the left of the first voltage supply line PLA1. Thus, from Figure 6B The first voltage EVDD transmitted from the upper end of the light-emitting display panel shown can be transmitted to the green pixel G and the blue pixel B through a branch voltage supply line extending to the left of the first voltage supply line PLA1.

[0113] In the same manner as the first voltage supply line PLA1, in the region where the second branch voltage supply line 106 branches off from the second gate voltage supply line PLA2b, the second gate voltage supply line PLA2b is disconnected, and the second optical shielding voltage supply line PLA2a is also disconnected. Therefore, from Figure 6B The first voltage EVDD transmitted from the upper end of the illustrated light-emitting display panel is not supplied to the green pixel G and the blue pixel B via the second branch voltage supply line 106. In this case, the disconnected second voltage supply line PLA2 is connected to the branch voltage supply line extending to the right of the second voltage supply line PLA2. Therefore, from Figure 6B The first voltage EVDD transmitted from the upper end of the light-emitting display panel shown can be transmitted to the red pixel R and the white pixel W through a branch voltage supply line extending to the right side of the second voltage supply line PLA2.

[0114] At the lower end of the region where the first optical shielding voltage supply line PLA1a intersects with the gate line GL, the first optical shielding voltage supply line PLA1a is also disconnected. Therefore, from Figure 6B The first voltage EVDD provided at the lower end of the light-emitting display panel shown will not be provided to the area where the first light-shielding voltage supply line PLA1a intersects with the gate line GL.

[0115] Following the same method as the first optical shielding voltage supply line PLA1a, at the lower end of the region where the second optical shielding voltage supply line PLA2a intersects with the gate line GL, the second optical shielding voltage supply line PLA2a is also disconnected. Therefore, from Figure 6B The first voltage EVDD provided at the lower end of the light-emitting display panel shown will not be provided to the area where the second light-shielding voltage supply line PLA2a intersects with the gate line GL.

[0116] like Figure 6B As shown, through the repair process described above, a closed circuit is formed connecting the gate line GL disposed to the left of the first voltage supply line PLA1, the first voltage supply line PLA1, the first branch voltage supply line 105, the repair line 107, the second branch voltage supply line 106, the second voltage supply line PLA2, and the gate line GL disposed to the right of the second voltage supply line PLA2.

[0117] Therefore, the gate signal GS supplied from the gate driver 200 located on the left side of the first voltage supply line PLA1 can be transmitted through this closed circuit.

[0118] Therefore, even if the gate line is disconnected between the first voltage supply line PLA1 and the second voltage supply line PLA2, the gate signal GS can still be provided to other pixels besides the four pixels R, W, G and B located between the first voltage supply line PLA1 and the second voltage supply line PLA2.

[0119] Therefore, according to this disclosure, in pixels connected to disconnected gate lines, light can be normally output from all pixels except the four that are connected. This improves the yield of the light-emitting display device.

[0120] Figure 7 It shows Figure 4 A magnified view of region Y shown. Figure 8A It shows along Figure 7 The example diagram shown is a cross-section taken by line A-A'. Figure 8B It shows along Figure 7 Another example diagram of the cross-section taken by line A-A'. In particular, Figure 7 The area Y shown is related to the settings. Figure 6A and 6B The area corresponding to the repair line 107 of the light-emitting display panel shown in the figure. Figure 8A The cross-section of region Y before the repair treatment is shown. Figure 8B A cross-section of region Y after the repair treatment is shown. In the following description, references will be omitted or briefly described. Figures 1 to 6B The description is the same as or similar to the description.

[0121] For reference Figure 8A and Figures 5A to 5E In the light-emitting display panel 100 applied in this disclosure, a light-shielding electrode comprising a first light-shielding voltage supply line PLA1a, a second light-shielding voltage supply line PLA2a, and a repair line 107 is provided on a substrate 110. The light-shielding electrode may be formed of various types of metal.

[0122] After the repair line 107 is covered by the buffer layer 120, a pixel driving layer 130 containing pixel driving units (PDCs) is provided at the upper end of the buffer layer 120. Specifically, Figure 8A The upper end of the buffer layer 120 shown is provided with an active electrode 133, which serves as a semiconductor or electrode for a transistor constituting a pixel driving unit (PDC). The buffer layer 120 may include at least one organic layer or at least one inorganic layer, or may include at least one organic layer and at least one inorganic layer.

[0123] The active electrode 133 is covered by the gate insulating layer 131, and a first branch voltage supply line 105 and a second branch voltage supply line 106 are provided at the upper end of the gate insulating layer 131.

[0124] The first branch voltage supply line 105 and the second branch voltage supply line 106 are covered by the passivation layer 132.

[0125] In other words, the pixel driving layer 130 includes an active electrode 133, a gate insulating layer 131, a passivation layer 132, and a gate electrode, and the pixel driving layer 130 includes a reference electrode. Figure 2 The various transistors described.

[0126] The passivation layer 132 is covered by the planarization layer 140.

[0127] A first contact hole 107a is provided in the planarization layer 140, passivation layer 132, gate insulating layer 131, and buffer layer 120 for connecting the repair line 107 to the first branch voltage supply line 105. That is, the first contact hole 107a removes the planarization layer 140, passivation layer 132, gate insulating layer 131, and buffer layer 120, thereby exposing the repair line 107 in the first contact hole 107a.

[0128] A first pixel electrode 107b is provided in a first contact hole 107a at the upper end of the planarization layer 140. The repair line 107 and the first branch voltage supply line 105 can be interconnected through the first pixel electrode 107b. In this case, the first pixel electrode 107b can also be connected to the active electrode 133.

[0129] An anode 150 is provided at the upper end of the planarization layer 140, a light-emitting layer constituting a light-emitting element ED is provided at the upper end of the anode 150, and a cathode constituting a light-emitting element ED is provided at the upper end of the light-emitting layer. At least one encapsulation film is provided at the upper end of the cathode, thereby forming a light-emitting display panel. The first pixel electrode 107b may be covered by a partition that distinguishes pixels.

[0130] In other words, in a normal light-emitting display panel 100, such as Figure 8A As shown, the first branch voltage supply line 105 is connected to the repair line 107, and the repair line 107 and the first branch voltage supply line 105 are not connected to the second branch voltage supply line 106.

[0131] However, as Figure 6A As shown, when the gate line is disconnected and thus a reference is executed. Figure 6B When describing the repair process, such as Figure 8B As shown, the second branch voltage supply line 106 is connected to the repair line 107. Therefore, as described above, a closed circuit can be formed that connects the first branch voltage supply line 105, the repair line 107, and the second branch voltage supply line 106 to each other.

[0132] In this case, such as Figure 8BAs shown, the second branch voltage supply line 106 can be recessed by laser and connected to the repair line 107.

[0133] For example, when a laser is irradiated from the lower end of the substrate 110, the buffer layer 120 and the gate insulating layer 131 disposed between the repair line 107 and the second branch voltage supply line 106 are eliminated by the laser. Therefore, the second branch voltage supply line 106 disposed at the upper end of the buffer layer 120 and the gate insulating layer 131 will be recessed in the direction of the repair line 107, thereby allowing the second branch voltage supply line 106 to be connected to the repair line 107 in the first contact region C1.

[0134] According to the above disclosure, the gate signal GS can be provided by connecting the first branch voltage supply line 105, the repair line 107, and the second branch voltage supply line 106 in a closed circuit. Therefore, in the pixels connected to the disconnected gate line, light can be normally output from the pixels other than the four pixels. This can improve the yield of the light-emitting display device.

[0135] The present disclosure is summarized as described above.

[0136] The end of the first branch voltage supply line 105 is adjacent to the end of the second branch voltage supply line 106.

[0137] In this case, such as Figures 6A to 8B As shown, the end of the first branch voltage supply line 105 and the end of the second branch voltage supply line 106 overlap with the repair line 107 disposed on the substrate 110.

[0138] At the upper end of the buffer layer 120 covering the repair line 107, the first branch voltage supply line 105 and the second branch voltage supply line 106 are spaced apart from each other.

[0139] The first voltage supply line PLA1 includes a first optical shielding voltage supply line PLA1a disposed on the substrate 110, and a first gate voltage supply line PLA1b disposed at the upper end of the buffer layer 120 covering the first optical shielding voltage supply line PLA1a. The first gate voltage supply line PLA1b overlaps with and is connected to the first optical shielding voltage supply line PLA1a.

[0140] The second voltage supply line PLA2 includes a second optical shielding voltage supply line PLA2a disposed on the substrate 110, and a second gate voltage supply line PLA2b disposed at the upper end of the buffer layer 120 covering the second optical shielding voltage supply line PLA2a. The second gate voltage supply line PLA2b overlaps with and is connected to the second optical shielding voltage supply line PLA2a.

[0141] The first branch voltage supply line 105 is a first branch gate voltage supply line extending from the first gate voltage supply line PLA1b along the first direction, and the second branch voltage supply line 106 is a second branch gate voltage supply line extending from the second gate voltage supply line PLA2b along the first direction.

[0142] That is, the first branch voltage supply line 105 is branched off from the first gate voltage supply line PLA1b, and the second branch voltage supply line 106 is branched off from the second gate voltage supply line PLA2b.

[0143] The end of the first branch voltage supply line 105 (or the first branch gate voltage supply line) and the end of the second branch voltage supply line 106 (or the second branch gate voltage supply line) overlap with the repair line 107, which is disposed on the same layer as the first optical shielding voltage supply line PLA1a and the second optical shielding voltage supply line PLA2a.

[0144] The gate line GL is disposed on the same layer as the first gate voltage supply line PLA1b and the second gate voltage supply line PLA2b, and intersects with the first optical shielding voltage supply line PLA1a and the second optical shielding voltage supply line PLA2a.

[0145] like Figure 8A As shown, the end of the first branch voltage supply line 105 is connected to the repair line 107 through the first pixel electrode 107b disposed in the first contact hole 107a.

[0146] The repair line 107 is covered by a buffer layer 120, and the active electrode 133 constituting the transistor disposed in the pixel driving unit PDC is disposed at the upper end of the buffer layer 120. The active electrode 133 is covered by a gate insulating layer 131, and the first branch voltage supply line 105 and the second branch voltage supply line 106 are disposed at the upper end of the gate insulating layer 131. The first branch voltage supply line 105 and the second branch voltage supply line 106 are covered by a passivation layer 132 and a planarization layer 140. A first contact hole 107a passes through the planarization layer 140, the passivation layer 132, the gate insulating layer 131, and the buffer layer 120 to expose the repair line 107, and the first pixel electrode 107b is in contact with the first branch voltage supply line 105, the active electrode 133, and the repair line 107.

[0147] During the repair process, the end of the second branch voltage supply line 106 passes through the gate insulating layer 131 and the buffer layer 120 and is connected to the repair line 107.

[0148] In the following text, see references Figures 9 to 13B To describe having reference Figures 4 to 8BThe description describes light-emitting display devices with different structures. In the following description, references will be omitted or briefly described. Figures 1 to 8B The descriptions are the same or similar.

[0149] Figure 9 This is an example diagram showing four pixels arranged in a light-emitting display panel applied to a light-emitting display device according to the present disclosure. Figures 10A to 10E It shows the manufacturing process. Figure 9 An example diagram of a method for using a light-emitting display panel.

[0150] As described above, the light-emitting display device according to the present disclosure includes a gate line GL, a first voltage supply line PLA1, a second voltage supply line PLA2, four pixels R, W, G and B disposed between two adjacent voltage supply lines PLA1 and PLA2 and connected to the gate line GL, a first branch voltage supply line 105 and a second branch voltage supply line 106, wherein the ends of the first branch voltage supply line 105 and the ends of the second branch voltage supply line 106 are adjacent to each other.

[0151] When the gate line GL connected to the four pixels 101 is not disconnected, such as Figure 9 As shown, the first voltage EVDD supplied by the first voltage supply line PLA1 is supplied to the red pixel R and the white pixel W through the first branch voltage supply line 105, and the first voltage EVDD supplied by the second voltage supply line PLA2 is supplied to the green pixel G and the blue pixel B through the second branch voltage supply line 106. Furthermore, the gate signal GS is provided to the four pixels R, W, G, and B, as well as all pixels connected to the gate line GL, through the gate line GL.

[0152] In other words, Figure 9 The image shows a light-emitting display panel 100 in its normal state with the gate line GL not disconnected.

[0153] In this case, Figure 9 In the area indicated by Y, the ends of the first branch voltage supply line 105 and the second branch voltage supply line 106 are adjacent to each other but not connected to each other.

[0154] In other words, in reference Figures 4 to 8B In the described light-emitting display device, the end of the first branch voltage supply line 105 is connected to the repair line 107, but in the reference... Figures 9 to 13B In the described light-emitting display device, the ends of the first branch voltage supply line 105 and the second branch voltage supply line 106 are not connected to the repair line 107.

[0155] Now refer to Figures 10A to 10EHere is a brief description of a method for manufacturing a light-emitting display panel having the above-described structure.

[0156] First, such as Figure 10A As shown, an optical shielding electrode comprising a first optical shielding voltage supply line PLA1a, a second optical shielding voltage supply line PLA2a, and a repair line 107 is provided on the substrate.

[0157] After covering the optically shielded electrodes with a buffer layer, such as Figure 10B As shown, an active electrode 133 is provided at the upper end of the buffer layer to serve as a semiconductor for the transistor constituting the pixel driving unit PDC.

[0158] Next, after covering the active electrode with a gate insulating layer, as... Figure 10C As shown, a gate electrode comprising a first gate voltage supply line PLA1b, a second gate voltage supply line PLA2b, a first branch voltage supply line 105, a second branch voltage supply line 106, and a gate line GL is provided at the upper end of the gate insulating layer.

[0159] In particular, such as Figure 10C As shown, the end of the first branch voltage supply line 105 and the end of the second branch voltage supply line 106 are adjacent to each other, but not connected to each other.

[0160] In this case, the end of the first branch voltage supply line 105 and the end of the second branch voltage supply line 106 are configured to be consistent with... Figure 10A The repair line 107 shown overlaps.

[0161] Next, the gate electrode is covered with a passivation layer, and then the passivation layer is covered with a planarization layer.

[0162] like Figure 10D As shown, contact holes are provided in the passivation layer and the planarization layer, the contact holes including those for... Figure 10A The first optically shielded voltage supply line PLA1a shown is Figure 10C The first voltage supply line contact hole PLA1c, to which the first gate voltage supply line PLA1b is connected, and for connecting the first voltage supply line PLA1b to the first voltage supply line contact hole PLA1c, and for connecting the first gate voltage supply line PLA1b to the first voltage supply line contact hole PLA1c, and for connecting the first ... Figure 10A The second optically shielded voltage supply line PLA2a shown is Figure 10C The second gate voltage supply line contact hole PLA2c is connected to the second gate voltage supply line PLA2b shown. In this case, since the first branch voltage supply line 105 and the second branch voltage supply line 106 are not connected to the repair line 107, therefore... Figure 5C The difference lies in Figure 10C The first contact hole for connecting the first branch voltage supply line 105 to the repair line 107 is not provided.

[0163] Finally, an anode 150 constituting the light-emitting element ED and a pixel electrode containing the first pixel electrode are provided on the planarization layer.

[0164] A light-emitting layer constituting the light-emitting element ED is provided at the upper end of the anode, and a cathode constituting the light-emitting element ED is provided at the upper end of the light-emitting layer.

[0165] At least one encapsulation film is provided at the upper end of the cathode, thereby forming a light-emitting display panel.

[0166] Figure 11A It shows the result of Figure 10A The optical shielding electrode shown and Figure 10C An example diagram of a pixel composed of gate electrodes is shown. Specifically, in... Figure 11A Only the text in the original is displayed. Figure 10A The optical shielding electrode shown includes the first optical shielding voltage supply line PLA1a, the second optical shielding voltage supply line PLA2a, and the repair line 107. Furthermore, in... Figure 11A Only the text in the original is displayed. Figure 10C The diagram shows the first gate voltage supply line PLA1b, the first branch voltage supply line 105, the second gate voltage supply line PLA2b, the second branch voltage supply line 106, and the gate line GL. That is, in... Figure 11A Only the basic elements required to describe this disclosure are shown. Figure 11B This is an example image showing a restored luminescent display panel. That is, in Figure 11B In the middle, through repair line 107, Figure 11A The first branch voltage supply line 105 and the second branch voltage supply line 106 shown in the figure are connected to each other.

[0167] First of all, Figure 11A In the illustrated light-emitting display panel, the first voltage EVDD provided by the first voltage supply line PLA1 is supplied to the red pixel R and the white pixel W located to the right of the first voltage supply line PLA1 via the first branch voltage supply line 105 located to the right of the first voltage supply line PLA1. The first voltage EVDD provided by the first voltage supply line PLA1 is also supplied to the green pixel G and the blue pixel B located to the left of the first voltage supply line PLA1.

[0168] The first voltage EVDD provided by the second voltage supply line PLA2 is supplied to the green pixel G and the blue pixel B located to the left of the second voltage supply line PLA2 via the second branch voltage supply line 106 located to the left of the second voltage supply line PLA2. The first voltage EVDD provided by the second voltage supply line PLA2 is also supplied to the red pixel R and the white pixel W located to the right of the second voltage supply line PLA2.

[0169] In this case, Figure 9 In the light-emitting display panel shown, the gate line GL is connected in the area indicated by X, but... Figure 11A In the illustrated light-emitting display panel, the gate line GL is disconnected in the area indicated by X. Therefore, the gate signal GS supplied from the gate driver 200 located to the left of the first voltage supply line PLA1 will not be provided to the pixel located to the right of the area indicated by X.

[0170] In this case, such as Figure 11B As shown, a repair process can be performed that interconnects the first branch voltage supply line 105 and the second branch voltage supply line 106, which are adjacent to each other, via repair line 107. Because... Figure 11B Repair and reference of the luminescent display panel shown Figure 6B The repair process described is the same, so its detailed description will be omitted.

[0171] When performing the repair process, such as Figure 11B As shown, a closed circuit is formed connecting the gate line GL disposed to the left of the first voltage supply line PLA1, the first voltage supply line PLA1, the first branch voltage supply line 105, the repair line 107, the second branch voltage supply line 106, the second voltage supply line PLA2, and the gate line GL disposed to the right of the second voltage supply line PLA2.

[0172] Therefore, the gate signal GS supplied from the gate driver 200 located on the left side of the first voltage supply line PLA1 can be transmitted through this closed circuit.

[0173] Therefore, even if the gate line is disconnected between the first voltage supply line PLA1 and the second voltage supply line PLA2, the gate signal GS can still be provided to other pixels besides the four pixels R, W, G and B located between the first voltage supply line PLA1 and the second voltage supply line PLA2.

[0174] Therefore, according to this disclosure, in pixels connected to disconnected gate lines, light can be normally output from all pixels except the four that are connected. This improves the yield of the light-emitting display device.

[0175] In particular, in reference Figures 9 to 13B In the described light-emitting display device, the ends of the first branch voltage supply line 105 and the second branch voltage supply line 106 are not connected to the repair line 107 before the repair process is performed. Therefore, a first contact hole is not required to connect the end of the first branch voltage supply line 105 or the end of the second branch voltage supply line 106 to the repair line 107. Thus, the reduction in pixel aperture ratio can be minimized, thereby improving the lifespan of the light-emitting display device.

[0176] Figure 12 It shows Figure 9 A magnified view of region Y shown. Figure 13A It shows along Figure 12 The example diagram shows a cross-section taken by line B-B'. Figure 13B It shows along Figure 12 Another example diagram of the cross-section taken by line B-B' shown. In particular, Figure 12 The area Y displayed corresponds to the area of ​​the repair line 107 of the luminous display panel displayed in settings 11A and 11B. Furthermore, Figure 13A The cross-section of region Y before the repair treatment is shown. Figure 13B The cross-section of region Y after the repair treatment is shown.

[0177] In the light-emitting display panel 100 applied to this disclosure, as shown in reference... Figure 13A as well as Figures 10A to 10E The substrate 110 is provided with an optical shielding electrode comprising a first optical shielding voltage supply line PLA1a, a second optical shielding voltage supply line PLA2a, and a repair line 107. The optical shielding electrode may be formed of various types of metal.

[0178] After the repair line 107 is covered by the buffer layer 120, a pixel driving layer 130 containing pixel driving units (PDCs) is provided at the upper end of the buffer layer 120. Specifically, Figure 13A The upper end of the buffer layer 120 shown is provided with an active electrode 133, which serves as a semiconductor or electrode for a transistor constituting a pixel driving unit (PDC). The buffer layer 120 may include at least one organic layer or at least one inorganic layer, or may include at least one organic layer and at least one inorganic layer.

[0179] The active electrode 133 is covered by the gate insulating layer 131, and a first branch voltage supply line 105 and a second branch voltage supply line 106 are provided at the upper end of the gate insulating layer 131.

[0180] The first branch voltage supply line 105 and the second branch voltage supply line 106 are covered by the passivation layer 132.

[0181] In other words, the pixel driving layer 130 includes an active electrode 133, a gate insulating layer 131, a passivation layer 132, and a gate electrode, and the pixel driving layer 130 includes a reference electrode. Figure 2 The various transistors described.

[0182] The passivation layer 132 is covered by the planarization layer 140.

[0183] An anode 150 is provided at the upper end of the planarization layer 140, a light-emitting layer constituting a light-emitting element ED is provided at the upper end of the anode 150, and a cathode constituting a light-emitting element ED is provided at the upper end of the light-emitting layer. At least one encapsulation film is provided at the upper end of the cathode, thereby forming a light-emitting display panel.

[0184] As described above, the ends of the first branch voltage supply line 105 and the second branch voltage supply line 106 are not connected to the repair line 107. Therefore, no first contact hole is formed for connecting the end of the first branch voltage supply line 105 or the end of the second branch voltage supply line 106 to the repair line 107.

[0185] In other words, in a normal light-emitting display panel 100, such as Figure 13A As shown, the first branch voltage supply line 105 and the second branch voltage supply line 106 are not connected to the repair line 107.

[0186] However, as Figure 11A As shown, when the gate line is disconnected and thus a reference is executed. Figure 11B When describing the repair process, such as Figure 13B As shown, the first branch voltage supply line 105 and the second branch voltage supply line 106 are connected to the repair line 107.

[0187] Therefore, as described above, a closed circuit can be formed that connects the first branch voltage supply line 105, the repair line 107, and the second branch voltage supply line 106 to each other.

[0188] In this case, such as Figure 13B As shown, the first branch voltage supply line 105 and the second branch voltage supply line 106 can be recessed by laser and connected to the repair line 107.

[0189] For example, when a laser is irradiated from the lower end of the substrate 110, the buffer layer 120 and the gate insulating layer 131 disposed between the first branch voltage supply line 105 and the second branch voltage supply line 106 and the repair line 107 will be eliminated by the laser.

[0190] Therefore, the first branch voltage supply line 105 disposed at the upper end of the buffer layer 120 and the gate insulating layer 131 will be recessed in the direction of the repair line 107, thereby connecting the first branch voltage supply line 105 and the repair line 107 in the second contact area C2.

[0191] Furthermore, the second branch voltage supply line 106 disposed at the upper end of the buffer layer 120 and the gate insulating layer 131 is recessed in the direction of the repair line 107, thereby allowing the second branch voltage supply line 106 to be connected to the repair line 107 in the third contact region C3.

[0192] refer to Figures 9 to 13B The features of this disclosure are described below.

[0193] Repair line 107 is covered by buffer layer 120 and gate insulating layer 131, and first branch voltage supply line 105 and second branch voltage supply line 106 are disposed at the upper end of gate insulating layer 131. In the region where the first branch voltage supply line 105 and second branch voltage supply line 106 overlap with repair line 107, the ends of the first branch voltage supply line 105 and the ends of the second branch voltage supply line 106 are spaced apart from each other.

[0194] In this case, the end of the first branch voltage supply line 105 and the end of the second branch voltage supply line 106 are not connected to the repair line 107.

[0195] During the repair process, the end of the first branch voltage supply line 105 passes through the buffer layer 120 and the gate insulating layer 131 and is connected to the repair line 107, and the end of the second branch voltage supply line 106 passes through the buffer layer 120 and the gate insulating layer 131 and is connected to the repair line 107.

[0196] Repair line 107 is covered by buffer layer 120, and active electrode 133 constituting the transistor is disposed at the upper end of buffer layer 120. Active electrode 133 is covered by gate insulating layer 131, and first branch voltage supply line 105 and second branch voltage supply line 106 are disposed at the upper end of gate insulating layer 131. First branch voltage supply line 105 and second branch voltage supply line 106 are covered by passivation layer 132, and passivation layer 132 is covered by planarization layer 140. The ends of first branch voltage supply line 105 and second branch voltage supply line 106 are spaced apart from each other, and the buffer layer 120 exposed in the region spaced apart from the ends of first branch voltage supply line 105 and second branch voltage supply line 106 is covered by passivation layer 132 and planarization layer 140.

[0197] According to the present disclosure as described above, a gate signal GS can be provided by connecting a closed circuit of the first branch voltage supply line 105, the repair line 107, and the second branch voltage supply line 106. Therefore, in the pixels connected to the disconnected gate lines, light can be normally output from all pixels except the four disconnected pixels. This improves the yield of the light-emitting display device.

[0198] Furthermore, since there is no need for a first contact hole to connect the end of the first branch voltage supply line 105 or the end of the second branch voltage supply line 106 to the repair line 107, the reduction in pixel aperture ratio can be minimized, thereby improving the lifespan of the light-emitting display device.

[0199] According to this disclosure, the following beneficial effects can be obtained. According to this disclosure, since a gate signal can be provided to a pixel connected to a disconnected gate line, the yield of the light-emitting display panel can be improved.

[0200] In particular, according to this disclosure, the reduction in pixel aperture ratio can be minimized, thereby improving the lifespan of the light-emitting display device.

[0201] It will be apparent to those skilled in the art that this disclosure is not limited to the aspects described above and the accompanying drawings, and that various substitutions, modifications, and alterations may be made in this disclosure without departing from its spirit or scope. Therefore, the scope of this disclosure is defined by the appended claims, and all variations or modifications derived from the meaning, scope, and equivalent concepts of the claims fall within the scope of this disclosure.

Claims

1. A light-emitting display device, comprising: Gate lines disposed along a first direction of the light-emitting display panel; A first voltage supply line and a second voltage supply line are disposed in the light-emitting display panel along a second direction different from the first direction; At least three pixels are disposed between two adjacent voltage supply lines and connected to the gate line; A first branch voltage supply line extends from the first voltage supply line along the first direction and connects to at least one pixel adjacent to the first voltage supply line; as well as A second branch voltage supply line extends from the second voltage supply line along the first direction and connects to at least one pixel adjacent to the second voltage supply line. The end of the first branch voltage supply line is adjacent to the end of the second branch voltage supply line. The ends of the first branch voltage supply line and the second branch voltage supply line overlap with the repair line disposed on the substrate.

2. The light-emitting display device as claimed in claim 1, wherein the first branch voltage supply line and the second branch voltage supply line are spaced apart from each other at the upper end of the buffer layer covering the repair line.

3. The light-emitting display device as described in claim 1, The first voltage supply line includes: A first optically shielded voltage supply line disposed on the substrate; as well as A first gate voltage supply line is disposed on the upper end of a buffer layer covering the first optical shielding voltage supply line. The first gate voltage supply line overlaps with and is connected to the first optical shielding voltage supply line. The second voltage supply line includes: A second optically shielded voltage supply line is disposed on the substrate; as well as A second gate voltage supply line is disposed on the upper end of the buffer layer covering the second optical shielding voltage supply line. The second gate voltage supply line overlaps with the second optical shielding voltage supply line and is connected to the second optical shielding voltage supply line.

4. The light-emitting display device of claim 3, wherein the first branch voltage supply line includes a first branch gate voltage supply line extending from the first gate voltage supply line along the first direction. The second branch voltage supply line includes a second branch gate voltage supply line extending from the second gate voltage supply line along the first direction.

5. The light-emitting display device as claimed in claim 3, wherein the ends of the first branch voltage supply line and the second branch voltage supply line overlap with the repair line, and the repair line is disposed on the same layer as the first light-shielding voltage supply line and the second light-shielding voltage supply line.

6. The light-emitting display device according to claim 3, wherein the gate line is disposed on the same layer as the first gate voltage supply line and the second gate voltage supply line, and intersects the first light shielding voltage supply line and the second light shielding voltage supply line.

7. The light-emitting display device as claimed in claim 1, wherein the end of the first branch voltage supply line is connected to the repair line via a first pixel electrode disposed in the first contact hole.

8. The light-emitting display device as claimed in claim 7, wherein the repair line is covered by a buffer layer, and an active electrode constituting a transistor is disposed at the upper end of the buffer layer. The active electrode is covered by a gate insulating layer, and the upper end of the gate insulating layer is provided with the first branch voltage supply line and the second branch voltage supply line. The first branch voltage supply line and the second branch voltage supply line are covered by a planarization layer. The first contact hole exposes the repair line by passing through the planarization layer, the gate insulating layer, and the buffer layer. The first pixel electrode is in contact with the first branch voltage supply line, the active electrode, and the repair line.

9. The light-emitting display device of claim 7, wherein during the repair process, the end of the second branch voltage supply line passes through a buffer layer covering the repair line and is connected to the repair line.

10. The light-emitting display device of claim 1, wherein the repair line is covered by a buffer layer and a gate insulating layer, and the first branch voltage supply line and the second branch voltage supply line are disposed at the upper ends of the buffer layer and the gate insulating layer. In the region where the ends of the first branch voltage supply line and the second branch voltage supply line overlap with the repair line, the ends of the first branch voltage supply line and the second branch voltage supply line are spaced apart from each other.

11. The light-emitting display device of claim 10, wherein during the repair process, the end of the first branch voltage supply line passes through the gate insulating layer and the buffer layer and is connected to the repair line, and the end of the second branch voltage supply line passes through the gate insulating layer and the buffer layer and is connected to the repair line.

12. The light-emitting display device of claim 1, wherein the repair line is covered by a buffer layer, and an active electrode constituting a transistor is disposed at the upper end of the buffer layer. The active electrode is covered by a gate insulating layer, and the upper end of the gate insulating layer is provided with the first branch voltage supply line and the second branch voltage supply line. The first branch voltage supply line and the second branch voltage supply line are covered by a passivation layer, which is then covered by a planarization layer. The ends of the first branch voltage supply line and the ends of the second branch voltage supply line are spaced apart from each other. The buffer layer is exposed in the region between the end of the first branch voltage supply line and the end of the second branch voltage supply line, and the exposed buffer layer is covered by the passivation layer and the planarization layer.

13. A light-emitting display panel, comprising: Repair lines are set on the substrate; Gate lines disposed above the substrate; A first voltage supply line and a second voltage supply line spaced apart from each other above the substrate; Multiple pixels are disposed between two adjacent voltage supply lines and electrically connected to the gate lines; A first branch voltage supply line extends from the first voltage supply line and is electrically connected to at least one pixel adjacent to the first voltage supply line; as well as A second branch voltage supply line extends from the second voltage supply line and is electrically connected to at least one pixel adjacent to the second voltage supply line. The repair line overlaps with the ends of the first branch voltage supply line and the second branch voltage supply line.

14. The light-emitting display panel of claim 13, wherein, during the repair process, at least one end of the first branch voltage supply line and the second branch voltage supply line is electrically connected to the repair line.

15. The light-emitting display panel of claim 13, wherein the first voltage supply line comprises: A first optically shielded voltage supply line is disposed on the substrate; as well as A first gate voltage supply line is disposed on the upper end of a buffer layer covering the first optical shielding voltage supply line. The first gate voltage supply line overlaps with and is connected to the first optical shielding voltage supply line.

16. The light-emitting display panel of claim 13, wherein the second voltage supply line comprises: A second optically shielded voltage supply line is disposed on the substrate; as well as A second gate voltage supply line is disposed on the upper end of a buffer layer covering the second optical shielding voltage supply line. The second gate voltage supply line overlaps with and is connected to the second optical shielding voltage supply line.

17. The light-emitting display panel of claim 13, wherein the end of the first branch voltage supply line is connected to the repair line via a first pixel electrode disposed in the first contact hole.

18. The light-emitting display panel of claim 13, further comprising a buffer layer disposed on the repair line.

19. The light-emitting display panel of claim 18, further comprising a pixel driving layer disposed on the buffer layer. The pixel driving layer and the buffer layer have contact holes, and during the repair process, at least one of the first branch voltage supply line and the second branch voltage supply line contacts the repair line in the contact holes.

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