Light emitting display device

Abstract

A light-emitting display device includes: a first substrate including pixels and signal lines arranged along a first direction; and a second substrate disposed on the back side of the first substrate, wherein wiring portions including wiring are provided on a first-1 side of the first substrate and a second-1 side of the second substrate. In the first substrate, a first pad portion adjacent to the first-1 side includes: a first pad connected to the signal lines and wiring, a first auxiliary pad disposed between the first pads, and a first connecting line configured to overlap the first pad and the first auxiliary pad. In the second substrate, a second pad portion adjacent to the second-1 side includes: a second pad connected to wiring, a second auxiliary pad disposed between the second pads, and a second connecting line configured to overlap the second pad and the second auxiliary pad. The wiring portions include auxiliary wiring connecting the first auxiliary pad and the second auxiliary pad.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit of Korean Patent Application No. 10-2021-0194752, filed on December 31, 2021, which is incorporated herein by reference as if fully set forth herein. Technical Field

[0003] This invention relates to a light-emitting display device. Background Technology

[0004] Non-display areas where no images are displayed are provided at the boundaries or edges of the luminescent display panel.

[0005] To enhance user immersion, the width of non-display areas has been gradually reduced, and recently, luminous display panels that do not include non-display areas have been proposed.

[0006] In order to manufacture a light-emitting display panel that does not include a non-display area, the wiring for connecting a first substrate for displaying images to a second substrate coupled to the first substrate and equipped with various drivers should be provided on the side of the first substrate and the side of the second substrate.

[0007] The process of forming wiring in the light-emitting display panel is performed later in the manufacturing process. Therefore, when errors occur due to wiring, the light-emitting display panel must be discarded, which increases losses. Summary of the Invention

[0008] Therefore, the present invention aims to provide a light-emitting display device that substantially overcomes one or more problems caused by the limitations and disadvantages of related technologies.

[0009] One aspect of the present invention aims to provide a light-emitting display device including auxiliary pads for replacing damaged wiring and auxiliary wiring.

[0010] Other advantages and features of the invention will be set forth in part in the description which follows, some of which will become apparent to those skilled in the art upon review of the following description or will be apparent by practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures specifically pointed out in the written specification, its claims, and the accompanying drawings.

[0011] To achieve these and other advantages and in accordance with the purposes of the invention, as embodied and generally described herein, a light-emitting display device is provided, comprising: a first substrate including pixels and signal lines arranged along a first direction; and a second substrate disposed on the back side of the first substrate, wherein wiring portions including wiring are provided on a first-1 side of the first substrate and a second-1 side of the second substrate. In the first substrate, a first pad portion adjacent to the first-1 side includes: a first pad connected to the signal lines and the wiring, a first auxiliary pad disposed between the first pads, and a first connecting line configured to overlap the first pad and the first auxiliary pad. In the second substrate, a second pad portion adjacent to the second-1 side includes: a second pad connected to the wiring, a second auxiliary pad disposed between the second pads, and a second connecting line configured to overlap the second pad and the second auxiliary pad. The wiring portion includes auxiliary wiring connecting the first auxiliary pad and the second auxiliary pad.

[0012] It should be understood that the foregoing general description and the following detailed description of the present invention are illustrative and explanatory, and are intended to provide further explanation of the present invention. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and form a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0014] In the attached diagram:

[0015] Figure 1 This is an example diagram illustrating the configuration of a light-emitting display device according to the present invention;

[0016] Figure 2 This is an example diagram illustrating the structure of pixels applied to a light-emitting display device according to the present invention;

[0017] Figure 3 These are perspective views of the front and side sides of the light-emitting display device according to the present invention;

[0018] Figure 4 These are perspective views of the back and side of the light-emitting display device according to the present invention;

[0019] Figure 5 This is an example diagram illustrating the front of a light-emitting display device according to the present invention;

[0020] Figure 6A and Figure 6B These are schematic illustrations of the back and side views of a light-emitting display device according to the present invention;

[0021] Figure 7 It is a diagram along Figure 6A and Figure 6B An example diagram of a cross-section taken by line A-A' shown in the figure;

[0022] Figure 8 It is a diagram along Figure 6B An example diagram of a cross-section taken by line B-B' shown in the figure;

[0023] Figure 9 It is a diagram along Figure 6A and Figure 6B An example diagram of a cross-section taken by line C-C' shown in the figure;

[0024] Figure 10 It is a diagram along Figure 6A and Figure 6B An example diagram of a cross section taken by line D-D'. Detailed Implementation

[0025] Reference will now be made in detail to exemplary embodiments of the invention, some examples of which are illustrated in the accompanying drawings. Throughout the drawings, the same reference numerals will be used to refer to the same or similar parts whenever possible.

[0026] The advantages and features of the invention, as well as its implementation, will be illustrated by the following embodiments described with reference to the accompanying drawings. However, the invention may be embodied in different forms and should not be construed as limited to the embodiments listed herein. Rather, these embodiments are provided to make this disclosure comprehensive and complete, and to fully convey the scope of the invention to those skilled in the art.

[0027] The shapes, sizes, proportions, angles, and quantities disclosed in the drawings for the purpose of describing embodiments of the invention are merely examples, and therefore the invention is not limited to the details illustrated. The same reference numerals refer to the same elements throughout. In the following description, detailed descriptions of related known functions or constructions will be omitted where it is determined that such detailed descriptions would unnecessarily obscure the focus of the invention. When the terms "comprising," "having," and "including" are used in this application, additional parts may be added unless "only" is used. Singular terms may include plural forms unless otherwise indicated.

[0028] When interpreting a feature, the feature is interpreted as containing a range of errors or tolerances, even if such a range of errors or tolerances is not explicitly stated.

[0029] When describing positional relationships, for example, when the positional relationship between two parts is described as “on top of,” “above,” “below,” and “after,” one or more additional parts may be placed between the two parts, unless more restrictive terms such as “exactly” or “directly” are used.

[0030] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” and “before,” discontinuous situations may be included unless more restrictive terms such as “immediately after” or “directly” are used.

[0031] It will be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. For example, without departing from the scope of the invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0032] In describing the elements of the present invention, the terms “first,” “second,” “A,” “B,” “(a),” “(b),” etc., may be used. These terms are intended to distinguish the corresponding element from other elements, and they do not limit the nature, order, or number of the corresponding elements. When an element or layer is “connected to,” “bonded to,” or “attached to” another element or layer, the element or layer may be directly connected to or attached to the other element or layer, or indirectly connected to or attached to the other element or layer by “setting” or “inserting” one or more intermediate elements or layers between these elements or layers, unless otherwise stated.

[0033] The term "at least one" should be understood to include any one and all combinations of one or more of the relevant listed items. For example, "at least one of the first, second and third items" means all combinations of two or more items selected from the first, second and third items, as well as the first, second or third item alone.

[0034] Those skilled in the art will fully understand that the features of the various embodiments of the present invention can be combined or integrated with each other, either partially or entirely, and can be technically interoperable and driven in various ways. The embodiments of the present invention can be implemented independently of each other or implemented jointly in an interdependent relationship.

[0035] In the following, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0036] Figure 1 This is an example diagram illustrating the configuration of a light-emitting display device according to the present invention. Figure 2 This is an example diagram illustrating the structure of a pixel applied to a light-emitting display device according to the present invention.

[0037] The light-emitting display device according to the present invention can be configured into various electronic devices. These electronic devices may include, for example, smartphones, tablet computers (PCs), televisions (TVs), and displays.

[0038] like Figure 1 As shown, the light-emitting display device according to the present invention may include: a light-emitting display panel 100, the light-emitting display panel 100 including a display area 120 for displaying images and a non-display area 130 disposed outside the display area 120; a gate driver 200, the gate driver 200 providing gate signals to a plurality of gate lines GL1 to GLg disposed in the display area 120 of the light-emitting display panel 100; a data driver 300, the data driver 300 providing data voltages to a plurality of data lines DL1 to DLd disposed in the light-emitting display panel 100; a controller 400, the controller 400 controlling the driving of the gate driver 200 and the data driver 300; and a power supply 500, the power supply 500 providing power to the controller, the gate driver, the data driver and the light-emitting display panel. In particular, in the light-emitting display device according to the present invention, the stages included in the gate driver 200 may be disposed in the display area 120, and the gate lines GL1 to GLg connected to the stages may be disposed in the light-emitting display panel 100.

[0039] First, the light-emitting display panel 100 may include a display area 120 and a non-display area 130.

[0040] Multiple pixels 109 for displaying images can be provided in the display area 120, and a non-display area 130 can surround the display area 120.

[0041] In this invention, because the various stages included in the gate driver 200 are disposed in the display area 120, the width of the non-display area 130 can be minimized.

[0042] In particular, in this invention, the non-display area 130 can be omitted. That is, the display area 120 can be disposed in the entire surface of the front side of the light-emitting display panel 100. In this case, as described above, since the gate driver 200 connected to the gate line is disposed in the display area, the non-display area for the gate driver 200 can be omitted. Furthermore, for example, the end of the data line connected to the data driver 300 can extend to... Figure 1 The upper end of the light-emitting display panel 100 shown extends to the back end of the light-emitting display panel via a side connected to the upper end, and can be connected to the data driver 300 located on the back end of the light-emitting display panel. Therefore, a non-display area for the gate driver 200 and the data driver 300, as well as pads for connecting gate lines and data lines to the gate driver 200 and the data driver 300, may not be provided on the front side of the light-emitting display panel 100. Therefore, in this invention, the non-display area 130 can be omitted.

[0043] However, the present invention is not limited thereto. Therefore, a non-display area 130 for arranging various lines and pads may be provided outside the display area 120.

[0044] Gate lines GL1 to GLg, data lines DL1 to DLd, and pixel 109 can be disposed in display area 120. Furthermore, each stage constituting gate driver 200 can be disposed in display area 120. Therefore, display area 120 can display an image. Here, g and d can be natural numbers.

[0045] like Figure 2 As shown, the pixels 109 included in the light-emitting display panel 100 may include light-emitting areas, the light-emitting areas include pixel driving circuit PDC and light-emitting device ED, and the pixel driving circuit PDC includes switching transistor Tsw1, storage capacitor Cst, driving transistor Tdr and sensing transistor Tsw2.

[0046] The first terminal of the driving transistor Tdr can be connected to the high-voltage power supply line PLA that provides a high voltage EVDD, and the second terminal of the driving transistor Tdr can be connected to the light-emitting device ED. The anode of the light-emitting device ED can be connected to the second terminal of the driving transistor Tdr, and the cathode of the light-emitting device ED can be connected to the low-voltage power supply line PLB that provides a low voltage EVSS.

[0047] The first terminal of the switching transistor Tsw1 can be connected to the data line DL, the second terminal of the switching transistor Tsw1 can be connected to the gate of the driving transistor Tdr, and the gate of the switching transistor Tsw1 can be connected to the gate line GL.

[0048] The data line DL can be supplied with the data voltage Vdata, and the gate line GL can be supplied with the gate signal GS.

[0049] The sensing transistor Tsw2 can be configured to measure the threshold voltage or mobility of the driving transistor. The first terminal of the sensing transistor Tsw2 can be connected to the second terminal of the driving transistor Tdr and the light emission period ED, the second terminal of the sensing transistor Tsw2 can be connected to the reference voltage line SL that provides the reference voltage Vref, and the gate of the sensing transistor Tsw2 can be connected to the sensing control line SCL that provides the sensing control signal SS.

[0050] The structure of the pixels 109 included in the light-emitting display panel 100 is not limited to... Figure 2 The structure shown in the figure. Therefore, the structure of pixel 109 can be varied.

[0051] Various insulating layers and electrodes constituting the pixel 109 can be disposed on a substrate such as a glass substrate or a film (hereinafter referred to as the substrate). That is, the light-emitting display panel 100 may include: a substrate, a plurality of insulating layers disposed on the substrate, and a plurality of electrodes disposed on the substrate.

[0052] The data driver 300 can provide data voltage to the data lines.

[0053] The controller 400 can rearrange the input video data transmitted from the external system using a timing synchronization signal transmitted from the external system and can generate a data control signal DCS to be provided to the data driver 300 and a gate control signal GCS to be provided to the gate driver 200.

[0054] For this purpose, the controller 400 may include: a data aligner that rearranges input video data to generate image data Data and provides the image data Data to the data driver 300; a control signal generator that generates a gate control signal GCS and a data control signal DCS using a timing synchronization signal; an input unit that receives the timing synchronization signal and input video data transmitted from an external system and transmits the timing synchronization signal and input video data to the control signal generator and the data aligner, respectively; and an output unit that provides the image data Data generated by the data aligner and the data control signal DCS generated by the control signal generator to the data driver 300, and provides the gate control signal GCS generated by the control signal generator to the gate driver 200.

[0055] An external system can perform the functions of the drive controller 400 and the electronic device. For example, when the electronic device is a TV, the external system can receive various voice, video, and text information via a communication network and can transmit the received video information to the controller 400. In this case, the image information may include the input video information.

[0056] The power supply 500 can generate various types of electricity and can provide the generated electricity to the controller 400, the gate driver 200, the data driver 300, and the light-emitting display panel 100.

[0057] Gate driver 200 provides gate pulses to gate lines GL1 to GLG. When the gate pulse generated by gate driver 200 is provided to the gate of switching transistor Tsw1 included in pixel 109, switching transistor Tsw1 is turned on. When switching transistor Tsw1 is turned on, data voltage supplied through data lines can be provided to pixel 109. When a gate-off signal generated by gate driver 200 is provided to the gate of switching transistor Tsw1, switching transistor Tsw1 is turned off. When switching transistor Tsw1 is turned off, data voltage is no longer supplied to pixel 109. The gate signal GS provided to gate line GL may include the gate pulse and the gate-off signal.

[0058] The gate driver 200 may include multiple stages, and these stages may be connected to gate lines GL1 to GLg.

[0059] These levels may be included in the light-emitting display panel 100, and in particular, may be disposed in the display area 120.

[0060] Figure 3 These are perspective views of the front and side sides of the light-emitting display device according to the present invention. Figure 4 This is a perspective view of the back and side of the light-emitting display device according to the present invention. Figure 5 This is an example diagram illustrating the front of a light-emitting display device according to the present invention.

[0061] The light-emitting display device according to the present invention may include: a first substrate 100 including signal lines 190 arranged along a first direction; and a second substrate 600 disposed on the back side of the first substrate 100. The first substrate 100 may be coupled to the second substrate 600 by a coupling member 900.

[0062] The first substrate 100 can be as described above. Figure 1 and Figure 2 The light-emitting display panel 100 is described. Therefore, in the following description, the reference numeral "100" assigned to the light-emitting display panel can be used as a reference numeral for the first substrate.

[0063] The signal line 190 may include: data lines DL1 to DLd for transmitting data voltage to the pixel 109, power lines for transmitting drive voltage to the pixel 109, gate clock lines for transmitting gate clock to the gate driver 200, and gate power lines for transmitting gate drive voltage to the gate driver 200.

[0064] Power cord may include Figure 1 and Figure 2 The high-voltage power supply line PLA and the low-voltage power supply line PLB are shown in the diagram.

[0065] First, a wiring portion 700 including multiple wirings 710 may be provided on the first-1 side of the first substrate 100 and the second-1 side of the second substrate 600.

[0066] Therefore, in Figure 3 and Figure 4 In the diagram, side 1-1 and side 2-1 can represent the sides where the wiring section 700 is installed.

[0067] In the first substrate 100, the first pad portion 110 adjacent to the first-1 side may include: a plurality of first pads 101 connected to the signal line 190 and the wiring 710, at least one first auxiliary pad 112 disposed between the first pads 101, and at least one first connection line 113 configured to overlap with the first pads 101 and at least one first auxiliary pad 112.

[0068] The first pad portion 110 may include a first pad 101, a first auxiliary pad 112, and a first connection line 113.

[0069] For example, in Figure 3 and Figure 5 In the first substrate 100 shown, two first connecting lines 113 may be provided, and a first auxiliary pad 112 may be provided at the first side end of each of the two first connecting lines 113 to overlap with the first connecting line 113.

[0070] The number of first connecting lines 113 can be set in various ways depending on the size of the first substrate 100, the number of signal lines 190, and the defect rate of wiring 710.

[0071] A first auxiliary pad 112 may be disposed in the region corresponding to the first connection line 113. In this case, at least one first auxiliary pad 112 may be disposed in the region where one first connection line 113 is disposed. For example, when two or more first auxiliary pads 112 are disposed in the region where one first connection line 113 is disposed, repair can be performed by using one of the two or more first auxiliary pads 112 disposed near the faulty wiring 710. In this case, the length of the first connection line 113 between the first auxiliary pad 112 and the first pad 101 connected to the faulty wiring 710 can be reduced, thereby reducing the resistance of the first connection line 113. Figure 3 and Figure 5 The diagram illustrates, as an example of the present invention, a first substrate 100 in which a first auxiliary pad 112 is provided in a region where a first connection line 113 is provided.

[0072] In addition, Figure 3 and Figure 5In the first substrate 100 shown, the first auxiliary pad 112 may be disposed at one end of the first connection line 113 to overlap with the first connection line 113.

[0073] When a first auxiliary pad 112 is set in the area where the first connection line 113 is set, the first auxiliary pad 112 can be set in various positions, but such as Figure 5 As shown, the first auxiliary pad 112 may be disposed in the area corresponding to one end of the first connection line 113.

[0074] However, the first auxiliary pad 112 may be located in the central portion of the first connection line 113 instead of one end of the first connection line 113.

[0075] For example, if the first pad 101 located at the other end of the first connection line 113 is to be connected to the first auxiliary pad 112 located at one end of the first connection line 113, the length of the first connection line 113 will be maximized. In this case, due to the load caused by the resistance in the first connection line 113, the strength of the signal transmitted through the first connection line 113 will decrease, or the signal transmission speed will decrease.

[0076] To address this issue, the first auxiliary pad 112 can be positioned in the central portion of the first connection line 113 instead of at one end of the first connection line 113. Therefore, the length between the first auxiliary pad 112 and the first pad 101 connected by the first connection line 113 will not exceed half the length of the first connection line 113. This prevents signal delay caused by the first connection line 113.

[0077] The first connection line 113 may be insulated from the first pad 101 and at least one first auxiliary pad 112.

[0078] In the second substrate 600, the second pad portion 610 adjacent to the second-1 side may include: a plurality of second pads 601 connected to the wiring 710, at least one second auxiliary pad 612 disposed between the second pads 601, and at least one second connection line 613 configured to overlap with the second pads 601 and at least one second auxiliary pad 612.

[0079] For example, in Figure 4 In the second substrate 600 shown, two second connecting lines 613 may be provided, and a second auxiliary pad 612 may be provided at the first side end of each of the two second connecting lines 613 to overlap with the second connecting line 613.

[0080] The number of second connection lines 613 can be set in various ways according to the size of the second substrate 600, the number of signal lines 190 and the defect rate of wiring 710, and can be set to be equal to the number of first connection lines 113.

[0081] The second auxiliary pad 612 can be disposed in the area corresponding to the second connection line 613. In this case, at least one second auxiliary pad 612 can be disposed in the area where one second connection line 613 is disposed. For example, when two or more second auxiliary pads 612 are disposed in the area where one second connection line 613 is disposed, repair can be performed by using one of the two or more second auxiliary pads 612 disposed near the faulty wiring 710. In this case, the length of the second connection line 613 between the second auxiliary pad 612 and the second pad 601 connected to the faulty wiring 710 can be reduced, thereby reducing the resistance of the second connection line 613. Figure 4 The diagram illustrates, as an example of the present invention, a second substrate 600 in which a second auxiliary pad 612 is provided in a region where a second connection line 613 is provided.

[0082] In other words, when a second auxiliary pad 612 is set in the area where the second connection line 613 is set, the second auxiliary pad 612 can be set in various positions, but if... Figure 4 As shown, the second auxiliary pad 612 may be disposed in the area corresponding to one end of the second connection line 613.

[0083] However, similar to the first auxiliary pad 112, the second auxiliary pad 612 may be located in the central portion of the second connection line 613 instead of one end of the second connection line 613.

[0084] The second connection line 613 may be insulated from the second pad 601 and at least one second auxiliary pad 612.

[0085] In this case, the second connection line 613 may be located in the area corresponding to the first connection line 113, and the second auxiliary pad 612 may be located in the area corresponding to the first auxiliary pad 112.

[0086] That is to say, the first auxiliary pad 112 and the second auxiliary pad 612 can be arranged in pairs, and in particular, they can be arranged in a position facing each other in a light-emitting display device.

[0087] The first pad 101 and the second pad 601 can be arranged in pairs, in particular, they can be arranged facing each other in a light-emitting display device.

[0088] The routing section 700 may include at least one auxiliary routing line 720 connecting at least one first auxiliary pad 112 to at least one second auxiliary pad 612. Figure 3 and Figure 4 The diagram illustrates, as an example of the present invention, a light-emitting display device provided with two auxiliary wirings 720. That is, a light-emitting display device provided with two auxiliary wirings 720... Figure 3 and Figure 4 The lines in the first-1 side and the second-1 side of the light-emitting display device shown, excluding the two auxiliary wirings 720, can be wirings 710.

[0089] The auxiliary wiring 720 can be formed in the same shape as the wiring 710.

[0090] Finally, as Figure 4 As shown, a connection portion 690 including a connection 640 connected to a second pad 601 may be provided in the second substrate 600.

[0091] At least one driver can be connected to cable 640.

[0092] Some of the connections can be connected to the data driver 300, some of the connections can be connected to the controller 400, and some of the connections can be connected to the power supply 500.

[0093] For example, in Figure 4 In this embodiment, as an example of the present invention, a light-emitting display device is illustrated in which a connection 640 is connected to a data driver 300 via a first printed circuit board (PCB) 301 on which a data driver 300 is mounted, and the first PCB 301 is connected to a second PCB 410 on which a controller 400 is mounted.

[0094] In this configuration, power supply 500 can be mounted on the second PCB 410.

[0095] In addition, the connection 640 among the connections 640 that connects to the controller 400 and the power supply 500 can be connected to the controller 400 and the power supply 500 via the first PCB 301 and the second PCB 410.

[0096] Therefore, the first PCB 301 and the second PCB 410 may be provided with a line connected to the wiring 640.

[0097] The second auxiliary pad 612 may not be connected to the wiring 640.

[0098] That is to say, the second auxiliary pad 612 can be connected to the auxiliary wiring 720 but not to the connection 640.

[0099] In the following text, reference will be made to Figures 1 to 5 The structure of the light-emitting display device according to the present invention, including the above-described elements, is described (in particular, the structure of the first substrate 100).

[0100] As described above, the light-emitting display device according to the present invention may include: a first substrate 100 including pixels 109 and signal lines 190 arranged along a first direction; and a second substrate 600 disposed on the back side of the first substrate 100.

[0101] The first substrate 100 may include signal lines 190 and pixels 109. Signal lines 190 may include: data lines DL1 to DLd for transmitting data voltages to pixels 109, power lines for transmitting drive voltages to pixels 109, gate clock lines for transmitting gate clocks to gate drivers 200, and gate power lines for transmitting gate drive voltages to gate drivers 200. Hereinafter, for ease of description, as an example of the invention, a light-emitting display device in which signal lines 190 are data lines will be described.

[0102] That is to say, such as Figure 3 and Figure 5 As shown, a pixel 109 may be provided in the first substrate 100, and a data line DL connected to the first pad 101 may be provided in the first substrate 100.

[0103] The first pad portion 110 may include a first pad 101, and in addition to the first pad 101, the first pad portion 110 may also include at least one first auxiliary pad 112 and at least one first connection line 113.

[0104] The gate driver 200 may include a stage for sequentially outputting gate pulses.

[0105] Each stage may include multiple stages of transistors.

[0106] In this case, these transistors can be disposed in the display area 120 of the first substrate.

[0107] For example, such as Figure 5 As shown, the m-th stage m may include multiple m-th branch circuit units BCm, and each m-th branch circuit unit BCm may include at least one stage transistor included in the m-th stage m. However, when the number of stage transistors included in the m-th stage m is less than the number of m-th branch circuit units BCm, at least one m-th branch circuit unit BCm may not include a stage transistor.

[0108] like Figure 5 As shown, the m-th branch circuit unit BCm can be disposed between unit pixels 109a, which are composed of four pixels 109.

[0109] That is to say, the unit pixel 109a can be set along the gate line GL arranged in a different direction from the data lines DL1 to DLd, and thus the m-th branch circuit unit BCm can also be set along the gate line GL.

[0110] In this case, the stageline portion, including the stageline connected to the m-th branch circuit unit BCm, can be set along the gate line GL.

[0111] In addition, a gate clock line, which connects to all stages and transmits the gate clock to all stages, and a gate power supply line, which transmits the gate drive voltage to the gate driver 200, can be arranged parallel to the data lines DL1 to DLd. The gate clock line and gate power supply line can be connected to the first pad 101. In this case, the gate clock line and gate power supply line can be included in the signal line 190.

[0112] That is, in the light-emitting display device according to the present invention, the gate driver 200 may be disposed in the display area 120 of the first substrate 100, and the various lines mentioned above may be signal lines 190.

[0113] In this configuration, signal line 190 can be connected to first pad 101 included in first pad portion 110 of first substrate 100.

[0114] The first pad 101 can be connected to the second pad 601 included in the second pad portion 610 of the second substrate 600 via wiring 710 provided on the first-1 side of the first substrate 100 and the second-1 side of the second substrate 600.

[0115] The cable 640 connected to the second pad 601 can be connected to the data driver 300, controller 400 and power supply 500 disposed on the back side of the second substrate 600.

[0116] The first auxiliary pad 112 can be connected to the second auxiliary pad 612 via auxiliary wiring 720 provided in each of the first substrate 100 on the first-1 side and the second substrate 600 on the second-1 side.

[0117] When the first auxiliary pad 112 is not connected to the first connection line 113, the first auxiliary pad 112 may not be connected to the signal line 190.

[0118] If the second auxiliary pad 612 is not connected to the second connection line 613, the second auxiliary pad 612 may not be connected to the connection line 640.

[0119] In the following text, references will be made to Figures 6 to 6. Figure 10 The light-emitting display device according to the present invention is described before and after repair. In the following description, the descriptions referenced above are omitted or are simplified. Figures 1 to 5 The details described are the same or similar.

[0120] Figure 6A and Figure 6B These are schematic illustrations of the back and side views of a light-emitting display device according to the present invention. Figure 7 It is a diagram along Figure 6A and Figure 6B The example diagram shows a cross-section taken by line A-A'. Figure 8 It is a diagram along Figure 6B An example diagram of a cross-section taken by line B-B' shown. Figure 9 It is a diagram along Figure 6A and Figure 6B An example diagram of a cross-section taken by line C-C' shown. Figure 10 It is a diagram along Figure 6A and Figure 6B An example diagram of a cross section taken by line D-D'.

[0121] In particular, for ease of description, examples of the present invention are provided below. Figure 6A and Figure 6B The diagram illustrates a light-emitting display device with 18 wirings 710 and auxiliary wirings 720 disposed on the side. However, the number of wirings 710 and auxiliary wirings 720 can be set in various ways depending on the size of the light-emitting display device.

[0122] Furthermore, as an example of the present invention, Figure 6A The diagram illustrates a light-emitting display device including a first connecting line 113 and a second connecting line 613, and serves as an example of the present invention. Figure 6B The diagram illustrates a light-emitting display device including two first connecting lines 113 and two second connecting lines 613. However, the number of first connecting lines 113 and second connecting lines 613 can be configured in various ways depending on the size of the light-emitting display device.

[0123] In addition, Figure 6A The diagram illustrates the repair of the first connecting line 113 and the second connecting line 613. Figure 6B The diagram illustrates the unrepaired first connecting line 113 and the second connecting line 613, as well as the repaired first connecting line 113 and the second connecting line 613.

[0124] As described above, the first pad portion 110 may include a first pad 101 connected to the signal line 190 and the wiring 710, a first auxiliary pad 112 disposed between the first pads 101, and a first connection line 113 configured to overlap with the first pads 101 and the first auxiliary pads 112. Furthermore, the second pad portion 610 may include a second pad 601 connected to the wiring 710, a second auxiliary pad 612 disposed between the second pads 601, and a second connection line 613 configured to overlap with the second pads 601 and the second auxiliary pads 612.

[0125] When the wiring 710, which is normally connected to the first pad 101 and the second pad 601 that overlap with the first connection line 113 and the second connection line 613 respectively, is functioning normally, the repair process for the first connection line 113 and the second connection line 613 is not required. In this case, the first connection line 113 may not be connected to the first pad 101 and the first auxiliary pad 112, and the second connection line 613 may not be connected to the second pad 601 and the second auxiliary pad 612. Furthermore, the first auxiliary pad 112 may not be connected to the signal line 190, and the second auxiliary pad 612 may not be connected to the connection line 640. In addition, the first connection line 113 may be insulated from the first pad 101 and the first auxiliary pad 112, and the second connection line 613 may be insulated from the second pad 601 and the second auxiliary pad 612.

[0126] Figure 7 The diagram illustrates a cross-sectional view between the first pad 101 and the second pad 601 when no repair process is performed on the first connection line 113 and the second connection line 613. Figure 8 The diagram shows a cross-sectional view between the first auxiliary pad 112 and the second auxiliary pad 612 when the repair process is not performed on the first connection line 113 and the second connection line 613.

[0127] Figure 9 The diagram illustrates a cross-sectional view between the first pad 101 and the second pad 601 during a repair process on the first connection line 113 and the second connection line 613. Figure 10 The diagram shows a cross-sectional view between the first auxiliary pad 112 and the second auxiliary pad 612 when a repair process is performed on the first connection line 113 and the second connection line 613.

[0128] First, refer to Figure 7 When the repair process is not performed on the first connection line 113 and the second connection line 613, the first connection line 113 may be insulated from the first pad 101, and the second connection line 613 may be insulated from the second pad 601.

[0129] For example, such as Figure 7 As shown, the first connection line 113 may overlap with the first pad 101 through the insulating layer 193, and the second connection line 613 may overlap with the second pad 601 through the first layer 692.

[0130] Provide additional descriptions in Figure 7 In this configuration, the first substrate 100 may include a first substrate 191, a buffer layer 192, an insulating layer 193, a first passivation layer 194, a dam 195, a second passivation layer 196, and an encapsulation layer 197. For example, various electrodes may be disposed between the buffer layer 192, the insulating layer 193, and the first passivation layer 194. Therefore, a configuration based on the above reference can be provided. Figure 2The pixel driving circuit PDC describes various transistors and references above. Figure 5 The described transistor. A light-emitting device (ED) may be disposed on a first passivation layer 194 and protected by a second passivation layer 196, and finally, an encapsulation layer 197 may be disposed on the second passivation layer 196. Furthermore, a weir 195 for supporting the second passivation layer 196 may be disposed at the end of the display area 120.

[0131] In this configuration, the first connection line 113 may be disposed between the buffer layer 192 and the insulating layer 193, the signal line 190 may be disposed between the insulating layer 193 and the first passivation layer 194, and the first pad 101 may be disposed on the first passivation layer 194.

[0132] Therefore, the first connection line 113 can overlap with the first pad 101 through the insulating layer 193.

[0133] However, except Figure 7 Besides the structure shown, the first substrate 100 can also be formed into various structures.

[0134] In addition, Figure 7 In this process, the second substrate 600 may include a second substrate 691, a connecting line protection layer 694, a first layer 692, and a second layer 693.

[0135] For example, the second connecting line 613 may be disposed between the second substrate 691 and the connecting line protection layer 694, and the connecting line 640 may be disposed between the connecting line protection layer 694 and the first layer 692.

[0136] The second pad 601 may be located on one of the first layer 692 and the second layer 693.

[0137] In this case, such as Figure 7 As shown, wiring 710 can be protected by coating 800.

[0138] That is, when the repair process is not performed on the first connection line 113 and the second connection line 613, the first connection line 113 can be insulated from the first pad 101, the second connection line 613 can be insulated from the second pad 601, and the first pad 101 can be connected to the second pad 601 through the wiring 710.

[0139] Therefore, the signal transmitted through the connection 640 can be transmitted to the first pad 101 through the second pad 601 and the wiring 710, and the signal transmitted to the first pad 101 can be transmitted to the pixel 109 through the signal line 190.

[0140] Secondly, refer to Figure 8When the repair process is not performed on the first connection line 113 and the second connection line 613, the first connection line 113 may be insulated from the first auxiliary pad 112, and the second connection line 613 may be insulated from the second auxiliary pad 612.

[0141] For example, such as Figure 8 As shown, the first connecting line 113 may overlap with the first auxiliary pad 112 through the insulating layer 193, and the second connecting line 613 may overlap with the second auxiliary pad 612 through the connecting line protection layer 694.

[0142] Provide additional descriptions in Figure 8 In this process, the first substrate 100 may include a first substrate 191, a buffer layer 192, an insulating layer 193, a first passivation layer 194, a weir 195, a second passivation layer 196, and an encapsulation layer 197. Figure 8 The first substrate 191, buffer layer 192, insulating layer 193, first passivation layer 194, weir 195, second passivation layer 196, and encapsulation layer 197 shown are compatible with... Figure 7 The first substrate 191, buffer layer 192, insulating layer 193, first passivation layer 194, weir 195, second passivation layer 196 and encapsulation layer 197 shown are the same.

[0143] The first connecting line 113 may be disposed between the buffer layer 192 and the insulating layer 193, and the first auxiliary pad 112 may be disposed on the first passivation layer 194.

[0144] In this case, a first auxiliary pad metal 114 can be provided between the insulating layer 193 and the first passivation layer 194. That is, the first auxiliary pad metal 114 can be formed on the same layer as the signal line 190.

[0145] The first auxiliary pad metal 114 can be connected to the first auxiliary pad 112 to overlap with the first connection line 113, and can be used to connect the first connection line 113 to the first auxiliary pad 112.

[0146] Therefore, the first connecting line 113 can overlap with the first auxiliary pad 112 through the insulating layer 193.

[0147] However, except Figure 8 Besides the structure shown, the first substrate 100 can also be formed into various structures.

[0148] In addition, Figure 8 In this process, the second substrate 600 may include a second substrate 691, a connecting line protection layer 694, a first layer 692, and a second layer 693.

[0149] For example, the second connection line 613 may be disposed between the second substrate 691 and the connection line protection layer 694, and the second auxiliary pad metal 614 may be disposed between the connection line protection layer 694 and the first layer 692. That is, the second auxiliary pad metal 614 may be formed on the same layer as the connection line 640.

[0150] The second auxiliary pad metal 614 can be connected to the second auxiliary pad 612 to overlap with the second connection line 613, and can be used to connect the second connection line 613 to the second auxiliary pad 612.

[0151] The second auxiliary pad 612 may be disposed on one of the first layer 692 and the second layer 693.

[0152] In this case, such as Figure 8 As shown, the auxiliary wiring 720 can be protected by the coating 800.

[0153] That is, when the repair process is not performed on the first connection line 113 and the second connection line 613, the first connection line 113 can be insulated from the first auxiliary pad 112, the second connection line 613 can be insulated from the second auxiliary pad 612, and the first auxiliary pad 112 can be connected to the second auxiliary pad 612 through the auxiliary wiring 720.

[0154] Therefore, no signal will be transmitted between the second auxiliary pad 612 and the first auxiliary pad 112.

[0155] Third, such as Figure 9 As shown, when the wiring 710 connecting the first pad 101 and the second pad 601 is opened, a repair process can be performed on the first connection line 113 and the second connection line 613. Here, opening the wiring 710 may indicate that the wiring 710 is disconnected or that the wiring 710 is damaged. When the wiring 710 is open or damaged, the signal cannot be transmitted normally through the wiring 710.

[0156] When a repair process is performed on the first connection line 113 and the second connection line 613, the wiring 710 identified as open or damaged can be repaired to be fully open. Therefore, the repaired wiring 710 may not be connected to the signal line 190 connected to the first pad 101, and may not be connected to the connection line 640 connected to the second pad 601. Figure 9 In the diagram, the broken portion of wiring 710 is indicated by reference mark CR.

[0157] When performing a repair procedure on the first connection line 113, the first pad 101, which is connected to the open wiring 710, can be connected to the first connection line 113.

[0158] For example, during the repair process, a laser beam can be irradiated onto the signal line 190 that overlaps with the first connecting line 113, thus causing the signal line 190 to concave, as... Figure 9 As shown, signal line 190 can be connected to the first connection line 113.

[0159] Furthermore, during the repair process, a laser beam can be irradiated onto the signal line 190 and the first pad 101 that overlap with the first connection line 113, so that as the first pad 101 and the signal line 190 are recessed, the signal line 190 can be connected to the first connection line 113.

[0160] That is, when the repair process is performed on the first connection line 113, the first connection line 113 can be connected to the signal line 190, and thus the second connection line 113 can be connected to the first pad 101 connected to the signal line 190.

[0161] When performing a repair procedure on the second connection line 613, the second pad 601, which is connected to the open wiring 710, can be connected to the second connection line 613.

[0162] For example, during the repair process, a laser beam can be irradiated onto the connecting line 640 that overlaps with the second connecting line 613, thus causing the connecting line 640 to become concave, as... Figure 9 As shown, wire 640 can be connected to the second connecting wire 613.

[0163] Furthermore, during the repair process, a laser beam can be irradiated onto the connection line 640 and the second pad 601 that overlap with the second connection line 613, so that as the second pad 601 and the connection line 640 are recessed, the connection line 640 can be connected to the second connection line 613.

[0164] That is, when the repair process is performed on the second connection line 613, the second connection line 613 can be connected to the connection line 640, and thus the second connection line 613 can be connected to the second pad 601 connected to the connection line 640.

[0165] That is, when a repair process is performed on the first connection line 113 and the second connection line 613, the first connection line 113 can be connected to the first pad 101 and the signal line 190 connected to the first pad 101, and the second connection line 613 can be connected to the second pad 601 and the connection line 640 connected to the second pad 601. In this case, the first pad 101, which has undergone the repair process, cannot be connected to the second pad 601, which has undergone the repair process, via the wiring 710.

[0166] Therefore, the signal transmitted through the connection 640 cannot be transmitted to the first pad 101 through the second pad 601 and the wiring 710, but the signal transmitted through the connection 640 can be transmitted to the second auxiliary pad 612 through the second connection line 613.

[0167] In this case, the second pad 601 may be electrically connected to the second connection line 613, or it may not be connected to the second connection line 613.

[0168] In addition, the first pad 101 may be electrically connected to the first connection line 113, or it may not be connected to the first connection line 113.

[0169] Fourth, such as Figure 10 As shown, when the wiring 710 connecting the first pad 101 and the second pad 601 is opened, a repair process can be performed on the first auxiliary pad 112 and the second auxiliary pad 612.

[0170] When performing a repair process on the first connection line 113, the first auxiliary pad 112 can be connected to the first connection line 113.

[0171] For example, in the repair process, a laser beam can be irradiated onto the first auxiliary pad metal 114 that overlaps with the first connection line 113, thus causing the first auxiliary pad metal 114 to recess, as... Figure 10 As shown, the first auxiliary pad metal 114 can be connected to the first connection line 113. Therefore, the first auxiliary pad 112 connected to the first auxiliary pad metal 114 can be connected to the first connection line 113.

[0172] Furthermore, during the repair process, a laser beam can be irradiated onto the first auxiliary pad 112 that overlaps with the first connection line 113, so that as the first auxiliary pad 112 is recessed, the first auxiliary pad 112 can be connected to the first connection line 113.

[0173] Furthermore, during the repair process, a laser beam can be irradiated onto the first auxiliary pad 112 and the first auxiliary pad metal 114 that overlap with the first connection line 113. As the first auxiliary pad 112 and the first auxiliary pad metal 114 are recessed, the first auxiliary pad 112 and the first auxiliary pad metal 114 can be connected to the first connection line 113.

[0174] That is, when the repair process is performed on the first connection line 113, the first connection line 113 can be connected to the first auxiliary pad 112.

[0175] When performing a repair process on the second connection line 613, the second connection line 613 can be connected to the second auxiliary pad 612.

[0176] For example, in the repair process, a laser beam can be irradiated onto the second auxiliary pad metal 614 that overlaps with the second connection line 613, thus causing the second auxiliary pad metal 614 to recess, as... Figure 10 As shown, the second auxiliary pad metal 614 can be connected to the second connection line 613. Therefore, the second auxiliary pad 612 connected to the second auxiliary pad metal 614 can be connected to the second connection line 613.

[0177] Furthermore, during the repair process, a laser beam can be irradiated onto the second auxiliary pad 612 that overlaps with the second connection line 613, so that as the second auxiliary pad 612 is recessed, the second auxiliary pad 612 can be connected to the second connection line 613.

[0178] Furthermore, during the repair process, a laser beam can be irradiated onto the second auxiliary pad 612 and the second auxiliary pad metal 614 that overlap with the second connection line 613. As the second auxiliary pad 612 and the second auxiliary pad metal 614 are recessed, the second auxiliary pad 612 and the second auxiliary pad metal 614 can be connected to the second connection line 613.

[0179] That is, when a repair process is performed on the second connection line 613, the second connection line 613 can be connected to the second auxiliary pad 612. In this case, the first auxiliary pad 112 can be connected to the second auxiliary pad 612 through the auxiliary wiring 720.

[0180] Therefore, when a repair process is performed on the first connection line 113 and the second connection line 613, the signal transmitted through the connection line 640 can be transmitted to the first auxiliary pad 112 through the second connection line 613, the second auxiliary pad 612 and the auxiliary wiring 720, and the signal transmitted to the first auxiliary pad 112 can be transmitted to the pixel 109 through the first connection line 113 and the signal line 190.

[0181] That is, according to the present invention as described above, even when the wiring 710 is damaged, the signal provided by the connection 640 can still be transmitted to the pixel 109 through the second connection line 613, the second auxiliary pad 612, the auxiliary wiring 720, the first auxiliary pad 112, the first connection line 113 and the signal line 190.

[0182] Therefore, according to the present invention, even when the wiring 710 is damaged, the light-emitting display device can be driven normally, thereby improving the yield of the light-emitting display device.

[0183] According to the present invention, even when the wiring is damaged, the signal line connected to the damaged wiring can be connected to the auxiliary wiring via the auxiliary pad. Therefore, even when the wiring is damaged, the signal can still be normally provided to the signal line, thereby reducing the defect rate of the light-emitting display device.

[0184] In other words, even if an error occurs due to wiring during the wiring process in the later stages of manufacturing the light-emitting display device, the light-emitting display device can be repaired to a normal state, thereby reducing the defect rate of the light-emitting display device.

[0185] The features, structures, and effects described above in this invention are included in at least one embodiment of the invention, but are not limited to one embodiment. Furthermore, those skilled in the art can achieve the features, structures, and effects described in at least one embodiment of the invention through combinations or modifications of other embodiments. Therefore, anything related to combinations and modifications should be interpreted as being within the scope of this invention.

[0186] Various modifications and variations may be made to this invention without departing from the spirit or scope thereof, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A light-emitting display device, comprising: A first substrate including pixels and signal lines arranged along a first direction; as well as A second substrate disposed on the back side of the first substrate. Wiring portions, including wiring, are provided on the first-1 side surface of the first substrate and the second-1 side surface of the second substrate. In the first substrate, the first pad portion adjacent to the first-1 side includes: a first pad connected to the signal line and the wiring, a first auxiliary pad disposed between the first pads and not connected to the signal line, and a first connection line configured to overlap with the first pad and the first auxiliary pad. A connection line connected to a second pad is provided in the second substrate, and in the second substrate, the second pad portion adjacent to the second-1 side includes: a second pad connected to the wiring, a second auxiliary pad disposed between the second pads and not connected to the connection line, and a second connection line configured to overlap with the second pad and the second auxiliary pad. The wiring portion includes auxiliary wiring that connects the first auxiliary pad and the second auxiliary pad, and the auxiliary wiring is disposed in the first-1 side surface of the first substrate and the second-2 side surface of the second substrate.

2. The light-emitting display device according to claim 1, wherein the signal line comprises: The data line that transmits data voltage to the pixel; and A power line that transmits the driving voltage to the pixel.

3. The light-emitting display device according to claim 2, wherein a gate driver is disposed in the first substrate, the gate driver comprising a stage transistor arranged along a gate line connected to the pixel.

4. The light-emitting display device according to claim 3, wherein the signal line further comprises: A gate clock line that transmits the gate clock to the gate driver; and A gate power supply line that transmits the gate drive voltage to the gate driver.

5. The light-emitting display device according to claim 1, wherein the first connecting line is insulated from the first pad and the first auxiliary pad, and The second connection line is insulated from the second pad and the second auxiliary pad.

6. The light-emitting display device according to claim 1, wherein at least one driver is connected to the connection.

7. The light-emitting display device according to claim 1, wherein the first auxiliary pad is disposed in the central portion of the first connecting line.

8. The light-emitting display device according to claim 1, wherein the first connecting line is connected to one of the signal lines and the first auxiliary pad, and The second connecting line is connected to one of the connecting lines disposed in the second substrate and the second auxiliary pad.

9. The light-emitting display device according to claim 8, wherein one of the wirings is open, or not connected to the signal line connected to the first pad, or not connected to the connection line connected to the second pad.

10. The light-emitting display device according to claim 8, wherein the first auxiliary pad is connected to the second auxiliary pad through the auxiliary wiring.

11. The light-emitting display device of claim 10, wherein one of the connections disposed in the second substrate and connected to the second pad is connected to the auxiliary wiring.

12. The light-emitting display device according to claim 1, wherein the first auxiliary pad is metal-connected to the first auxiliary pad. The metal of the first auxiliary pad overlaps with the first connection line. The second auxiliary pad is metal-connected to the second auxiliary pad, and The metal of the second auxiliary pad overlaps with the second connection line.

13. The light-emitting display device according to claim 12, wherein the first auxiliary pad metal is disposed on the same layer as the signal line, and The second auxiliary pad metal is disposed on the same layer as the wiring disposed in the second substrate and connected to the second pad.

14. The light-emitting display device according to claim 12, wherein the first auxiliary pad metal is connected to the first connecting line, and The second auxiliary pad metal is connected to the second connection line.

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