Display device

Abstract

The invention provides a display device. The display device comprises a first pixel, a second pixel and a backup joint part, the first pixel comprises a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel are arranged corresponding to the two first joint parts. Each of the two first bonding portions includes a first electrode and a second electrode. The second pixel comprises a third sub-pixel and a fourth sub-pixel, and the third sub-pixel and the fourth sub-pixel are arranged corresponding to the two second joint parts. Each of the two second bonding portions includes a first electrode and a second electrode. The backup joint part is adjacent to the first pixel and the second pixel and is electrically connected with the extension part. The backup bonding portion includes a first electrode and a second electrode. The first electrode of one of the two first bonding portions is electrically connected to the first metal pattern, and the first electrode of one of the two second bonding portions is electrically connected to the second metal pattern. The extension portion is disposed on the first metal pattern and the second metal pattern and overlaps at least one of the first metal pattern and the second metal pattern.

Description

Technical Field

[0001] The present disclosure relates to a display device. Background Art

[0002] Light-emitting diodes (LEDs), with their advantages of low power consumption, high brightness, and fast response times, are well-suited for use in display devices. When manufacturing displays using LEDs, these diodes are bonded together in batches to corresponding pixel layouts. Sometimes, it's impossible to guarantee that all LEDs are functioning properly. Therefore, display devices using LEDs often require room for repairs. Summary of the Invention

[0003] The present disclosure is directed to a display device comprising a first pixel, a second pixel and at least one backup joint. The first pixel comprises a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel are arranged corresponding to the two first joints. Each of the two first joints comprises a first electrode and a second electrode. The second pixel comprises a third sub-pixel and a fourth sub-pixel, and the third sub-pixel and the fourth sub-pixel are arranged corresponding to the two second joints. Each of the two second joints comprises a first electrode and a second electrode. The backup joint is adjacent to the first pixel and the second pixel and is electrically connected to the extension. The backup joint comprises a first electrode and a second electrode. The first electrode of one of the two first joints is electrically connected to the first metal pattern, and the first electrode of one of the two second joints is electrically connected to the second metal pattern. The extension is arranged on the first metal pattern and the second metal pattern, and overlaps with at least one of the first metal pattern and the second metal pattern.

[0004] According to the display device of the embodiment disclosed herein, the backup joint is used for repairing sub-pixels, so that the display device can be repaired when necessary to improve the yield of the display device. After repair, the repaired structure provided by the backup joint can be used as a sub-pixel for display. If no repair is performed, the structure of the backup joint has no display function. Multiple sub-pixels in the display device can share the backup joint, so a sufficient number and density of sub-pixels can still be provided in the display device. Overall, the display device can still meet the requirements of high resolution, high pixel density, high brightness, etc. while having a backup joint as a repair structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] Figure 1 A schematic diagram of a display device according to an embodiment of the present disclosure;

[0006] Figure 2 A schematic diagram of the layout of sub-pixels and redundant junctions of a display device according to an embodiment of the present disclosure;

[0007] Figure 3 A schematic diagram of the layout of sub-pixels and redundant junctions of a display device according to an embodiment of the present disclosure;

[0008] Figure 4 A partial schematic diagram of a display device according to an embodiment of the present disclosure;

[0009] Figure 5 for Figure 4 A schematic cross-sectional view of a display device along line II' in some embodiments;

[0010] Figure 6 for Figure 5 A schematic diagram of the display device after repair;

[0011] Figure 7 A schematic diagram of a partial component layout of a display device according to some embodiments of the present disclosure;

[0012] Figure 8 A schematic diagram of a partial component layout of a display device according to some embodiments of the present disclosure;

[0013] Figure 9 Schematic diagram of partial component layout of a display device according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0014] Reference will now be made in detail to exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0015] The use of ordinal numbers such as "first" and "second" in the specification and claims to modify an element does not, by itself, imply or indicate any prior ordinal number of the element(s), nor does it indicate the order of one element relative to another, or the order of manufacturing methods. Such ordinal numbers are used solely to clearly distinguish one element from another with the same name. The claims and the specification may not use the same terminology; thus, the first element in the specification may be the second element in the claim.

[0016] Throughout this disclosure and the claims that follow, certain words will be used to refer to specific components. It will be understood by those skilled in the art that electronic equipment manufacturers may refer to the same components by different names. This document does not intend to distinguish between components that have the same function but different names. In the following description and claims, words such as "comprises," "contains," and "has" are open-ended words and should therefore be interpreted as meaning "including but not limited to..." Therefore, when the terms "comprises," "contains," and / or "has" are used in the description of this disclosure, they specify the presence of corresponding features, regions, steps, operations, and / or components, but do not exclude the presence of one or more corresponding features, regions, steps, operations, and / or components.

[0017] In this disclosure, when a structure (or layer, component, or substrate) is located on / above another structure (or layer, component, or substrate), this may mean that the two structures are adjacent and directly connected, or that the two structures are adjacent but not directly connected. Indirect connection means that at least one intervening structure (or intervening layer, intervening component, intervening substrate, or intervening spacer) is present between the two structures. The bottom surface of one structure is adjacent to or directly connected to the top surface of the intervening structure, and the top surface of the other structure is adjacent to or directly connected to the bottom surface of the intervening structure. The intervening structure may be composed of a single or multiple layers of physical or non-physical structures, without limitation. In this disclosure, when a structure is disposed "on" another structure, this may mean that the structure is "directly" on the other structure, or that the structure is "indirectly" on the other structure, i.e., at least one structure is interposed between the two structures.

[0018] It should be understood that when a component or film layer is referred to as being "connected to" another component or film layer, it can be directly connected to the other component or film layer, or there can be intervening components or film layers between the two. When a component is referred to as being "directly connected to" another component or film layer, there can be no intervening components or film layers between the two. In addition, when a component is referred to as being "coupled to another component (or variations thereof)", it can be directly connected to the other component, or indirectly connected (e.g., electrically connected) to the other component through one or more components.

[0019] The electrical connection or coupling described in this disclosure may refer to a direct connection or an indirect connection. In the case of a direct connection, the endpoints of the two circuit elements are directly connected or connected to each other by a conductor segment. In the case of an indirect connection, there is a switch, diode, capacitor, inductor, resistor, other suitable element, or a combination of the above elements between the endpoints of the two circuit elements, but it is not limited thereto.

[0020] In the present disclosure, the thickness, length and width may be measured using an optical microscope, and the thickness may be measured from a cross-sectional image using an electron microscope, but the present invention is not limited thereto.

[0021] In the present disclosure, the various embodiments described below may be mixed and matched without departing from the spirit and scope of the present disclosure. For example, some features of one embodiment may be combined with some features of another embodiment to form another embodiment.

[0022] The display device disclosed herein may be any type of display device, such as a color display device, a monochrome display device, a transparent display device, a double-sided display device, a virtual reality display device, an augmented reality display device, a 3D display device, a spliced display device, a flexible display device, a foldable display device, a stretchable display device, and a rollable display device, but is not limited thereto. In some embodiments, the display device may include a self-luminous display device or a non-self-luminous display device. The self-luminous display device may include a light-emitting diode, a light conversion layer or other suitable materials, or a combination thereof, but is not limited thereto. The light-emitting diode may, for example, include an organic light emitting diode (OLED), a sub-millimeter light-emitting diode (mini LED), a micro light-emitting diode (micro LED) or a quantum dot light-emitting diode (quantum dot LED, which may include QLED, QDLED), but is not limited thereto. The light conversion layer may include a wavelength conversion material and / or a filter material, and the light conversion layer may, for example, include fluorescence, phosphor, quantum dots (QD), other suitable materials or a combination thereof, but is not limited thereto. Non-self-luminous display devices may include liquid crystal display devices, but are not limited thereto. In addition, the appearance of the display device may be, for example, rectangular, circular, polygonal, a shape with curved edges, a curved surface (curved) or other suitable shapes. The display device may have peripheral systems such as a drive system, a control system, a light source system, a shelf system... The display device may include an electronic unit, wherein the electronic unit may include passive components and active components, such as capacitors, resistors, inductors, diodes, transistors, sensors, etc. It should be noted that the display device disclosed herein may be various combinations of the above-mentioned devices, but is not limited thereto.

[0023] Figure 1 FIG. 1 is a schematic diagram of a display device according to an embodiment of the present disclosure. Figure 1 The display device 100 includes a plurality of pixels 110 arranged in an array. For ease of description, two pixels 110, namely a first pixel 110A and a second pixel 110B, will be described in detail below. The description of the first pixel 110A and the second pixel 110B can also be applied to the other pixels 110. The first pixel 110A includes a plurality of sub-pixels, and the second pixel 110B includes a plurality of sub-pixels. Figure 1The arrangement of these pixels 110 and sub-pixels is only schematically presented. In practice, the orientation and arrangement of the sub-pixels can be adjusted according to different design requirements. In some embodiments, at least some of the sub-pixels can be circular, square, or other shapes. In some embodiments, at least some of the sub-pixels can be oriented with their long axes arranged in one direction and other sub-pixels arranged in another direction. In some embodiments, these sub-pixels can be arranged in an array, in a staggered arrangement, or in other arrangements. In some embodiments, the first pixel 110A and the second pixel 110B each include three or more sub-pixels. For example, the first pixel 110A and the second pixel 110B each include a red sub-pixel, a blue sub-pixel, and a blue sub-pixel. In the present disclosure, pixels and / or sub-pixels can be determined, for example, based on the display light finally presented by the display device, but are not limited to this. For convenience of explanation, the subsequent description uses two sub-pixels of the first pixel 110A and two sub-pixels of the second pixel 110B for description, but the number of sub-pixels in each pixel 110 is not limited to this.

[0024] The first pixel 110A includes a first sub-pixel 112 and a second sub-pixel 114, and the second pixel 110B includes a third sub-pixel 116. The second sub-pixel 114 may be, for example, a different color from the first sub-pixel 112, and the fourth sub-pixel 118 may be, for example, a different color from the third sub-pixel 116. In some embodiments, each of the first sub-pixel 112, the second sub-pixel 114, the third sub-pixel 116, and the fourth sub-pixel 118 may include a light-emitting element, such as a light-emitting diode, a micro-LED, a sub-millimeter light-emitting diode, an organic light-emitting diode, etc. Each sub-pixel can be controlled by a circuit (e.g., a switch element / transistor) for each sub-pixel. In some embodiments, sub-pixels of different colors can be implemented using light-emitting elements of different colors. For example, a red sub-pixel, a blue sub-pixel, and a green sub-pixel can be implemented using a red light-emitting element, a blue light-emitting element, and a green light-emitting element. In some embodiments, sub-pixels of different colors can be implemented using light-emitting elements of the same color in combination with different filter materials and / or wavelength conversion materials (e.g., quantum dots). For example, red, blue, and green sub-pixels can be implemented using a blue light-emitting unit and corresponding filter materials and / or wavelength conversion materials (e.g., quantum dots) for the red, blue, and green sub-pixels, respectively. Sub-pixels of different colors can provide display light of different colors (e.g., red, green, and blue), so the first pixel 110A and the second pixel 110B can present a multi-color display by adjusting the brightness of different sub-pixels. In some embodiments, depending on different types of display devices or display requirements, multiple pixels or sub-pixels can have light-emitting units of the same color to provide display light of the same color but at different brightnesses or angles. In some embodiments, the number of sub-pixels of different colors in the same pixel 110 can vary. For example, the number of red sub-pixels can be greater than the number of at least one of the blue and green sub-pixels. In some embodiments, the light-emitting areas of sub-pixels of different colors can be different. For example, the light-emitting area of a red sub-pixel can be greater than the light-emitting area of at least one of the blue and green sub-pixels. In some embodiments, the shapes of sub-pixels of different colors can be different.

[0025] The display device 100 also includes a plurality of joints 120 corresponding to individual sub-pixels. In some embodiments, the individual pixels 110 may include the aforementioned light-emitting units and circuit layers. The joint 120 may be a part of the circuit layer of the individual pixel 110, and the circuit layer may be used to provide driving signals and power to the light-emitting units. For convenience of explanation, the joint 120 corresponding to the first pixel 110A is referred to herein as the first joint 120A, and the joint 120 corresponding to the second pixel 110B is referred to as the second joint 120B. In addition, the first sub-pixel 112 and the second sub-pixel 114 are provided corresponding to the two first joints 120A, and the third sub-pixel 116 and the fourth sub-pixel 118 are provided corresponding to the two second joints 120B.

[0026] The display device 100 further includes a backup joint portion 130. The backup joint portion 130 is adjacent to the first pixel 110A and the second pixel 110B and is electrically connected to the extension portion 140. Figure 1 It is only used to illustrate the connection relationship of individual components and is not used to limit the configuration position and structural shape of individual components. In some embodiments, the backup joint 130 can be set between the first pixel 110A and the second pixel 110B, but the present disclosure is not limited to this. In some embodiments, the backup joint 130 can be set with the sub-pixels in a specified arrangement pattern, or the setting position of the backup joint 130 can be different from the arrangement pattern of the sub-pixels. Although this embodiment is described as setting a backup joint 130 for two adjacent pixels 110, it is not limited to this. In some embodiments, two backup joints 130 can be set corresponding to two adjacent pixels 110, or other numbers of backup joints 130.

[0027] The display device 100 further includes an extension portion 140, and the backup joint portion 130 is electrically connected to the extension portion 140. The extension portion 140 can be disposed between the backup joint portion 130 and the first pixel 110A and between the backup joint portion 130 and the second pixel 110B. For convenience of explanation, the extension portion 140 can be divided into an extension portion 140A disposed between the backup joint portion 130 and the first pixel 110A and an extension portion 140B between the backup joint portion 130 and the second pixel 110B. The extension portion 140A and the extension portion 140B are electrically connected and can be, for example, disposed at the same layer. In some embodiments, the extension portion 140A and the extension portion 140B can both be connected to the first electrode 132 of the respective backup joint portion 130. In some embodiments, the extension portion 140A and the extension portion 140B can be composed of an integral and continuous conductive pattern.

[0028] The display panel 100 further includes a plurality of metal patterns 150. Here, the first metal pattern 150A corresponding to the first pixel 110A and the second metal pattern 150B corresponding to the second pixel 110B are first described. One of the two first joints 120A is electrically connected to the first metal pattern 150A, and one of the two second joints 120B is electrically connected to the second metal pattern 150B. Figure 5 As shown, the extension portion 140 may be, for example, disposed on the first metal pattern 150A and the second metal pattern 150B, and the extension portion 140 may overlap with at least one of the first metal pattern 150A and the second metal pattern 150B. For example, the extension portion 140A may overlap with the first metal pattern 150A, and / or the extension portion 140B may overlap with the second metal pattern 150B.

[0029] Figure 1 The joint portion 120, backup joint portion 130, extension portion 140, first metal pattern 150A, and second metal pattern 150B described herein are all made of conductive materials and can be used to achieve the required electrical connection. In some embodiments, each of the two first joint portions 120A includes a first electrode 122A and a second electrode 124A, and each of the two second joint portions 120B includes a first electrode 122B and a second electrode 124B. In addition, the light-emitting unit of the first sub-pixel 112 can be bonded to the first electrode 122A and second electrode 124A of the corresponding first joint portion 120A, and the light-emitting unit of the second sub-pixel 114 can be bonded to the first electrode 122A and second electrode 124A of the corresponding first joint portion 120A. Similarly, the light emitting unit of the third sub-pixel 116 may be bonded to the first electrode 122B and the second electrode 124B of the corresponding second bonding portion 120B, and the light emitting unit of the fourth sub-pixel 118 may be bonded to the first electrode 122B and the second electrode 124B of the corresponding second bonding portion 120B.

[0030] In some embodiments, the light-emitting unit bonded to the individual bonding portion 120 may be a light-emitting diode, and the first electrode and the second electrode of the individual bonding portion 120 may be electrodes of different polarities. For example, the first electrode 122A in the individual first bonding portion 120A may be a P electrode, and the second electrode 124A in the individual first bonding portion 120A may be an N electrode. Similarly, the first electrode 122B in the individual second bonding portion 120B may be a P electrode, and the second electrode 124B in the individual second bonding portion 120B may be an N electrode. In some embodiments, the individual N electrodes may be connected to the same potential. In other words, the second electrode 124A in the individual first bonding portion 120A and the second electrode 124B in the individual second bonding portion 120B may be connected to the same potential and / or electrically connected to each other, but are not limited thereto.

[0031] In some embodiments, each of the backup joints 130 may include a first electrode 132 and a second electrode 134. Similar to the design of the joint 120, the first electrode 132 and the second electrode 134 of each of the backup joints 130 may be electrodes of different polarities. The first electrode 132 of each of the backup joints 130 may be selectively electrically connected to the first electrode 122A in one of the first joints 120A or the first electrode 122B in one of the second joints 120B, and provide the same polarity as the connected electrode to achieve a repair function. At the same time, the corresponding second electrode 134 provides another polarity. In some embodiments, the first electrode 132 of each backup joint 130 may be electrically connected to the corresponding joint 120 through the corresponding extension 140 and the metal pattern 150. In some embodiments, the second electrode 134 of each backup joint 130 may be electrically connected to the second electrode (e.g., 124A, 124B) of the joint 120. In some embodiments, the second electrode 134 of each of the redundant joints 130 may be physically connected to the second electrode (eg, 124A, 124B) of the joint 120 .

[0032] exist Figure 1 In the embodiment of the present invention, the first electrode 122A of one of the two first bonding portions 120A can be electrically connected to the first metal pattern 150A. Similarly, the first electrode 122B of one of the two second bonding portions 120B can be electrically connected to the second metal pattern 150B. For example, the first metal pattern 150A can be disposed between the first sub-pixel 112 and the extension portion 140A, and the first electrode 122A of the first bonding portion 120A corresponding to the first sub-pixel 112 can be electrically connected to the first metal pattern 150A. Similarly, the second metal pattern 150B can be disposed between the third sub-pixel 116 and the extension portion 140B, and the first electrode 122B of the second bonding portion 120B corresponding to the third sub-pixel 116 can be electrically connected to the second metal pattern 150B. In some embodiments, the second electrode 124A of the first bonding portion 120A corresponding to the first sub-pixel 112 and the second electrode 124A of the first bonding portion 120A corresponding to the second sub-pixel 114 can be connected to the same potential or electrically connected to each other. Similarly, the second electrode 124B of the second bonding portion 120B corresponding to the third sub-pixel 116 and the second electrode 124B of the second bonding portion 120B corresponding to the fourth sub-pixel 118 may be connected to the same potential or electrically connected to each other.

[0033] exist Figure 1In the embodiment, the display device 100 may further include another first metal pattern 150C and another second metal pattern 150D. The first metal pattern 150C may be disposed between the second sub-pixel 114 and the extension portion 140A, and the first electrode 122A corresponding to the first joint portion 120A of the second sub-pixel 114 may be electrically connected to the first metal pattern 150C. Similarly, the second metal pattern 150D may be disposed between the fourth sub-pixel 118 and the extension portion 140B, and the first electrode 122B corresponding to the second joint portion 120B of the fourth sub-pixel 118 may be electrically connected to the second metal pattern 150D. In some embodiments, other sub-pixels of the first pixel 110A and the second pixel 110B may also be disposed with corresponding metal patterns 150. In some embodiments, the redundant joint 130 may be disposed corresponding to the first pixel 110A and the second pixel 110B through the circuit layout of the extension portion 140 and the metal pattern 150. When any sub-pixel in the first pixel 110A or the second pixel 110B needs to be repaired, an additional light-emitting unit (eg, a light-emitting diode) can be bonded to the backup bonding portion 130 and the backup bonding portion 130 can be electrically connected to the corresponding bonding portion 120 .

[0034] For example, if the light-emitting unit of the first sub-pixel 112 in the first pixel 110A is determined to be malfunctioning, the repair process may include: bonding an additional light-emitting unit (e.g., a light-emitting diode) to the backup joint 130; electrically connecting the backup joint 130 to the first joint 120A of the first sub-pixel 112 via the extension 140A and the first metal pattern 150A; and electrically disconnecting the backup joint 130 from the other joints 120. At this point, the backup joint 130 and the light-emitting unit bonded thereto can be used to replace the first sub-pixel 112.

[0035] In some embodiments, the extension portion 140 and all the metal patterns 150 overlap with each other but are not connected before repairing, such as Figure 5 At this time, the method of electrically connecting the backup joint portion 130 to the first joint portion 120A of the first sub-pixel 112 through the extension portion 140A and the first metal pattern 150A includes welding the overlapping extension portion 140A and the first metal pattern 150A together (as shown in FIG. Figure 6), and the method for electrically disconnecting the redundant joint portion 130 from the other joint portions 120 includes maintaining the pre-repair structure of the extension portion 140A / 140B and other metal patterns other than the first metal pattern 150A (e.g., overlapping but not connected). In other words, after repairing the first sub-pixel 112 of the first pixel 110A, the extension portion 140 overlaps with one of the first metal pattern 150A and the second metal pattern 150B (e.g., the second metal pattern 150B), and the extension portion 140 is connected to one of the first metal pattern 150A and the second metal pattern 150B (e.g., the first metal pattern 150A).

[0036] In some embodiments, the extension 140 and all metal patterns 150 are already connected to each other before repair. In this case, the method for electrically connecting the backup joint 130 to the first joint 120A of the first sub-pixel 112 via the extension 140A and the first metal pattern 150A includes maintaining the pre-repair structure of the extension 140A and the first metal pattern 150A (i.e., connected to each other). The method for electrically disconnecting the backup joint 130 from the other joints 120 includes using laser cutting or a similar method to disconnect the extensions 140A / 140B from the metal patterns other than the first metal pattern 150A. In this way, the extension 140 is connected to the corresponding first metal pattern 150A, establishing the desired electrical connection.

[0037] Similarly, when the third sub-pixel 116 of the second pixel 110B needs to be repaired, an additional light-emitting unit (e.g., a light-emitting diode) can be bonded to the backup joint 130. Simultaneously, the backup joint 130 is electrically connected to the second joint 120B of the third sub-pixel 116 via the extension 140B and the second metal pattern 150B, and the backup joint 130 is electrically disconnected from the other joints 120. This allows the sub-pixel bonded to the backup joint 130 to replace the third sub-pixel 116. In some embodiments, after the third sub-pixel 116 of the second pixel 110B is repaired, the extension 140 overlaps with one of the first metal pattern 150A and the second metal pattern 150B (e.g., the first metal pattern 150A), and the extension 140 is connected to one of the first metal pattern 150A and the second metal pattern 150B (e.g., the second metal pattern 150B).

[0038] In this embodiment, multiple sub-pixels in the first pixel 110A and the second pixel 110B can share a backup joint 130. For example, when the first pixel 110A has N sub-pixels and the second pixel 110B has M sub-pixels, N+M sub-pixels can share a backup joint 130. However, the present disclosure is not limited to this. In other embodiments, the extension portion 140B can be omitted and the backup joint 130 can only serve as a repair structure shared by multiple sub-pixels in the first pixel 110A. In this way, the number of backup joints 130 is still less than the number of sub-pixels. The display device 100 does not need to excessively sacrifice the sub-pixel setting area in order to set up a large number of repair structures, which helps to improve the display aperture ratio. In other words, the display device 100 has a backup joint 130 for repair purposes while also having an ideal pixel density to meet the requirements of high resolution, high brightness, etc.

[0039] Figure 2 This is a schematic diagram of the layout of sub-pixels and backup joints of a display device according to an embodiment of the present disclosure. The display device 200 includes a plurality of pixels 210 and a plurality of repair structures 220. In the present embodiment, each pixel 210 includes three sub-pixels 212, 214 and 216, but is not limited thereto. The sub-pixels 212, 214 and 216 and the repair structure 220 can be arranged in an array along a first direction X and a second direction Y, wherein the first direction X and the second direction Y are, for example, perpendicular to each other. At the same time, each pixel 210 can be provided corresponding to a repair structure 220. In this way, the ratio of the number of repair structures 220 to the number of sub-pixels 212, 214 and 216 is approximately 1 to 3. In some embodiments, the display device 200 may include a light-emitting unit and a joint (such as Figure 1 The joint 120 shown in FIG. 1 ) and the repair structure 220 may be specifically composed of Figure 1 The redundant joint portion 130 , the extension portion 140 and the metal pattern 150 are shown to achieve this.

[0040] For the sake of convenience, Figure 2 Only some of the pixels 210A to 210D and some of the repair structures 220A to 220D are marked. In this embodiment, the repair structure 220A is adjacent to the sub-pixels 212, 214, and 216 of the pixel 210A, the sub-pixels 212 and 216 of the pixel 210B, the sub-pixels 212 and 214 of the pixel 210C, and the sub-pixel 214 of the pixel 210D. Therefore, although the ratio of the number of repair structures 220 to the number of sub-pixels 212, 214, and 216 is 1 to 3, the arrangement of a single repair structure 220 adjacent to eight sub-pixels allows each repair structure 220 to serve as a repair structure shared by the eight sub-pixels, as shown in FIG. Figure 2As shown in the dotted line frame. In addition, the sub-pixel 216 of the pixel 210B is adjacent to both the repair structure 220A and the repair structure 220B. When the sub-pixel 216 of the pixel 210B needs to be repaired, it can be repaired by either the repair structure 220A or the repair structure 220B. Similarly, the sub-pixel 212 of the pixel 210C is adjacent to both the repair structure 220A and the repair structure 220C. Therefore, when the sub-pixel 212 of the pixel 210C needs to be repaired, it can be repaired by either the repair structure 220A or the repair structure 220C. In this way, in addition to each repair structure 220 of the display device 200 being able to provide repair for multiple sub-pixels 212, 214, and 216, each sub-pixel 212, 214, and 216 can also be repaired by either of the two repair structures 220 when it needs to be repaired. Therefore, the display device 200 provides a flexible repair design. Furthermore, the smaller number of repair structures 220C requires less space, allowing for a desired display aperture ratio without sacrificing sub-pixel layout density. In some embodiments, after the display device 200 is repaired, at least one of the repair structures 220 may be provided with a light-emitting unit for repair, while the remaining repair structures 220 remain idle. In this case, the light-emitting units in the sub-pixels 212, 214, and 216 that were previously non-functioning remain in the display device 200. Therefore, the number of light-emitting units in the repaired display device 200 may be greater than the total number of sub-pixels 212, 214, and 216 available for display.

[0041] Figure 3 This is a schematic diagram of the layout of the sub-pixels and the backup joints of a display device according to an embodiment of the present disclosure. The display device 300 includes a plurality of pixels 310 and a plurality of repair structures 320. Each pixel 310 includes three sub-pixels 312, 314 and 316. Each repair structure 320 is provided corresponding to one of the pixels 310. These sub-pixels 312, 314 and 316 and the repair structure 320 are arranged in an array along a first direction X and a second direction Y', wherein the first direction X and the second direction Y' intersect but are not perpendicular to each other. Thus, the ratio of the number of repair structures 320 to the number of sub-pixels 312, 314 and 316 is approximately 1 to 3. In some embodiments, each sub-pixel 312, 314 and 316 may include a light-emitting unit and a corresponding joint (such as Figure 1 The joint 120 shown in FIG. 1 ) and the repair structure 320 may be specifically composed of Figure 1 The redundant joint portion 130 , the extension portion 140 and the metal pattern 150 are shown to achieve this.

[0042] For the sake of convenience, Figure 3Only some of the pixels 310A to 310D and some of the repair structures 320A to 320D are shown. In this embodiment, the repair structure 320A is adjacent to the sub-pixels 312, 314, and 316 of the pixel 310A, the sub-pixels 314 and 316 of the pixel 310B, and the sub-pixel 312 of the pixel 310C. Therefore, although the ratio of the number of repair structures 320 to the number of sub-pixels 312, 314, and 316 is approximately 1 to 3, a single repair structure 320 can provide repair for six sub-pixels 312, 314, and 316, as shown in FIG. Figure 3 As shown in the dotted line frame. In addition, the sub-pixels 314 and 316 of the pixel 310B are adjacent to both the repair structure 320A and the repair structure 320B. When the sub-pixels 314 and 316 of the pixel 310B need to be repaired, they can be repaired by either the repair structure 320A or the repair structure 320B. Similarly, the sub-pixel 312 of the pixel 310C is adjacent to both the repair structure 320A and the repair structure 320C. Therefore, when the sub-pixel 312 of the pixel 310C needs to be repaired, it can be repaired by either the repair structure 320A or the repair structure 320C. In this way, in addition to each repair structure 320 of the display device 300 being able to repair multiple sub-pixels 312, 314, and 316, each sub-pixel 312, 314, and 316 can also be repaired by either of the two repair structures 320 when it needs to be repaired.

[0043] Figure 2 and Figure 3 In the embodiments described above, three sub-pixels constitute one pixel, and the three sub-pixels in the same pixel can selectively have different luminous colors, but the present disclosure is not limited to this. In some embodiments, each pixel can have more sub-pixels, and / or each pixel can include two or more sub-pixels of the same color. In addition, Figure 2 and Figure 3 Although the embodiment discloses a configuration in which every three sub-pixels correspond to one repair structure to form an array arrangement, in some embodiments, every plurality of sub-pixels may correspond to two or more repair structures.

[0044] Figure 4 FIG. 4 is a partial schematic diagram of a display device according to an embodiment of the present disclosure. The display device 400 includes a plurality of pixels, and Figure 4Schematically showing two pixels, namely pixel 412 and pixel 414. Pixel 412 includes sub-pixel 412A, sub-pixel 412B, and sub-pixel 412C, and sub-pixel 412A, sub-pixel 412B, and sub-pixel 412C may have different luminous colors. Pixel 414 includes sub-pixel 414A, sub-pixel 414B, and sub-pixel 414C, and sub-pixel 414A, sub-pixel 414B, and sub-pixel 414C may have different luminous colors. In some embodiments, the arrangement relationship between pixel 412 and pixel 414 can refer to Figure 1 For example, two of the sub-pixel 414A, the sub-pixel 414B, and the sub-pixel 414C can be understood as the first sub-pixel 112 and the second sub-pixel 114 in the aforementioned embodiment, and two of the sub-pixel 414A, the sub-pixel 414B, and the sub-pixel 414C can be understood as the third sub-pixel 116 and the fourth sub-pixel 118 in the aforementioned embodiment. Figure 1 The arrangement relationship of the first sub-pixel 112 , the second sub-pixel 114 , the third sub-pixel 116 and the fourth sub-pixel 118 described in can also be applied to the display device 400 .

[0045] The display device 400 further includes a plurality of first bonding portions 420A corresponding to the respective sub-pixels 412A-412C. Each first bonding portion 420A includes a first electrode 422A and a second electrode 424A. Each sub-pixel 412A-412C further includes a light-emitting element LE bonded to the first electrode 422A and the second electrode 424A of the corresponding first bonding portion 420A. In some embodiments, the light-emitting element LE of each sub-pixel 412A-412C is, for example, a light-emitting diode, and the first electrode 422A and the second electrode 424A of each first bonding portion 420A may be electrodes of different polarities (also referred to as pads).

[0046] Similarly, the display device 400 further includes a plurality of second bonding portions 420B corresponding to respective sub-pixels 414A-414C, and each second bonding portion 420B includes a first electrode 422B and a second electrode 424B. Each sub-pixel 414A-414C further includes a light-emitting element LE bonded to the first electrode 422B and the second electrode 424B of the corresponding second bonding portion 420B. In some embodiments, the light-emitting element LE is, for example, a light-emitting diode, and the first electrode 422A and the second electrode 424B of each second bonding portion 420B may be electrodes of different polarities (also referred to as pads).

[0047] The display device 400 also includes at least one backup joint 430 and an extension 440. The backup joint 430 is adjacent to the pixel 412 and the pixel 414. The extension 440 includes an extension 440A disposed between the backup joint 430 and the pixel 412 and an extension 440B disposed between the backup joint 430 and the pixel 414. The extension 440A and the extension 440B are electrically connected and may, for example, be disposed on the same layer. In some embodiments, the extension 440A and the extension 440B may be formed of an integral, continuous conductive pattern. The backup joint 430 may include a first electrode 432 and a second electrode 434, and the first electrode 432 connects the extension 440A and the extension 440B. In some embodiments, the second electrode 424A of the first junction 420A corresponding to the sub-pixels 412A- 412C, the second electrode 424B of the second junction 420B corresponding to the sub-pixels 414A- 414C, and the second electrode 434 of the backup junction 430 may be connected to the same potential and connected together, for example, via the electrode connection pattern 402 .

[0048] The display device 400 may also include first metal patterns 450A corresponding to individual sub-pixels 412A-412C and second metal patterns 450B corresponding to individual sub-pixels 414A-414B. The number of first metal patterns 450A may correspond to the number of sub-pixels 412A-412C, and the number of second metal patterns 450B may correspond to the number of sub-pixels 414A-414B. In some embodiments, each first metal pattern 450A may be connected to the first electrode 422A of the corresponding first junction 420A, and each second metal pattern 450B may be connected to the first electrode 422B of the corresponding second junction 420B. For example, the first metal pattern 450A corresponding to the sub-pixel 412A may be connected to the first electrode 422A of the first junction 420A of the corresponding sub-pixel 412A. Similarly, the second metal pattern 450B corresponding to the sub-pixel 414A may be connected to the first electrode 422B of the second junction 420B of the corresponding sub-pixel 414A.

[0049] In this embodiment, the extension portion 440A includes a plurality of repair areas 442A overlapping individual first metal patterns 450A and a connection pattern 444A connecting the plurality of repair areas 442A to the backup joint 430. That is, the connection pattern 444A extends between the repair area 442A and the first electrode 432 of the backup joint 430. Similarly, the extension portion 440B includes a plurality of repair areas 442B overlapping the second metal pattern 450B and a connection pattern 444B, wherein the connection pattern 444B connects the plurality of repair areas 442B to the first electrode 432 of the backup joint 430. In some embodiments, the extension portion 440A, the extension portion 440B and the first electrode 432 of the backup joint 430 can be a continuous and integrated conductor pattern, but is not limited thereto. Therefore, the extension portion 440 as a whole can overlap with both the first metal pattern 450A and the second metal pattern 450B. The backup joint 430 and the extension portion 440 are Figure 4 The layout design in can be regarded as Figure 1 An embodiment of the middle backup joint portion 130 and the extension portion 140, and Figure 4 The electrode connection pattern 402 can be applied to Figure 1 The display device 100 is shown, but is not limited thereto.

[0050] In some embodiments, the first electrode 422A of each first joint portion 420A and the first electrode 422B of each second joint portion 420B are, for example, P electrodes, while the second electrode 424A of each first joint portion 420A and the second electrode 424B of each second joint portion 420B are, for example, N electrodes. Furthermore, the first electrode 432 of the backup joint portion 430 is, for example, a P electrode, while the second electrode 434 of the backup joint portion 430 is, for example, an N electrode. The P electrode and N electrode referred to herein refer to the P and N electrodes corresponding to the light-emitting unit LE. For example, when a light-emitting diode is bonded to the first joint portion 420A as the light-emitting unit LE to form the sub-pixel 412A, the P electrode contact of the light-emitting diode is bonded to the first electrode 422A, and the N electrode contact of the light-emitting diode is bonded to the second electrode 424A. In some embodiments, the first electrode 422A of each first joint portion 420A is closer to the backup joint portion 430 than the second electrode 424A, and the first electrode 422B of each second joint portion 420B is closer to the backup joint portion 430 than the second electrode 424B. Therefore, the polarity orientation direction (relative position of the P pole and the N pole) of the light-emitting units LE serving as sub-pixels 412A-412C can be opposite to the polarity orientation direction of the light-emitting units LE serving as sub-pixels 414A-414C, but the present invention is not limited thereto.

[0051] In some embodiments, individual first metal patterns 450A overlap with, but do not directly contact, the extension portion 440A. Similarly, individual second metal patterns 450B overlap with, but do not directly contact, the extension portion 440B. When repair is required, the corresponding first metal pattern 450A or second metal pattern 450B is electrically connected to the extension portion 440. In some embodiments, individual first metal patterns 450A and the extension portion 440A may be in direct contact. Similarly, individual second metal patterns 450B and the extension portion 440B are in direct contact. Thus, the first metal pattern 450A or second metal pattern 450B corresponding to the sub-pixels that do not require repair must be disconnected from the extension portion 440 to complete the display device 400.

[0052] Figure 5 for Figure 4 A schematic cross-sectional view of a display device along line II' in some embodiments. Figure 4 and Figure 5 , the display device 400 includes Figure 4 In addition to the components described above, the display device 400 also includes a substrate 460 and an insulating layer 470 disposed on the substrate 460. The insulating layer 470 may include an organic material, an inorganic material, or a combination thereof. The insulating layer 470 may be a single-layer structure or a multi-layer structure. In some embodiments, the display device 400 includes multiple metal layers (or circuit layers) and multiple insulating layers disposed on the substrate 460. For ease of description, Figure 4 Only a part of the metal layer (or circuit layer) and the insulating layer are shown. The first metal pattern 450A and the second metal pattern 450B of the display device 400 may be the same metal layer, which is arranged on the first side of the insulating layer 470 close to the substrate 460. The extension 440 and the individual joints (including the first joint 420A, the second joint 420B and the backup joint 430) of the display device 400 may be the same metal layer, which is arranged on the second side of the insulating layer 470 away from the substrate 460, wherein the first side and the second side of the insulating layer 470 are opposite. Therefore, the insulating layer 470 is arranged between the extension 440 and at least one of the first metal pattern 450A and the second metal pattern 450B. Due to Figure 4 The cross section corresponds to sub-pixel 412A, Figure 4 The insulating layer 470 is only shown to be disposed between the extension portion 440A and the first metal pattern 450A. However, in the cross-sectional structure corresponding to other sub-pixels (e.g., sub-pixel 414A) (not shown), the insulating layer 470 may be disposed between the extension portion 440B and the second metal pattern 450B. In some embodiments, the first metal pattern 450A and the first electrode 422A of the first bonding portion 420A are different layers, and the display device 400 may further include a conductive pattern 404 that penetrates the insulating layer 470 to connect between the first metal pattern 450A and the first electrode 422A. In this way, Figure 5In the embodiment, the first metal pattern 450A is electrically connected to the first electrode 422A, but the first metal pattern 450A is electrically disconnected from the extension portion 440 .

[0053] In addition, the sub-pixel 412A includes a light emitting unit LE, such as a light emitting diode, and is bonded to the first electrode 422A and the second electrode 424A of the first bonding portion 420A. Figure 4 In the display device 400, a protective layer 480 is disposed over the extension 440 and the individual joints (including the first joint 420A, the second joint 420B, and the backup joint 430). The protective layer 480 may have a plurality of joint openings 482 corresponding to the individual joints (including the first joint 420A, the second joint 420B, and the backup joint 430), and a repair opening 484 corresponding to the extension 440. The joint openings 482 can expose the first and second electrodes of the individual joints (e.g., the first electrode 422A and the second electrode 424A of the first joint 420A, and the first electrode 432 and the second electrode 434 of the backup joint 430). The light-emitting element LE of the sub-pixel 412A can be bonded to the first electrode 422A and the second electrode 424A through the joint openings 482. Furthermore, the repair opening 484 corresponding to the extension 440 exposes a portion of the extension 440, where this portion, for example, overlaps with the first metal pattern 450A.

[0054] Figure 6 for Figure 5 Please also refer to the diagram of the repaired display device. Figure 5 and Figure 6When the light-emitting unit LE of the sub-pixel 412A fails to work properly and needs to be repaired, the repair light-emitting unit LE' can be bonded to the backup joint 430 to form a repair sub-pixel 412D. For example, the repair light-emitting unit LE' is a light-emitting diode, and its two contacts are respectively bonded to the first electrode 432 and the second electrode 434 of the backup joint 430 through the corresponding bonding opening 482. The repair sub-pixel 412D can present the same luminous color as the sub-pixel 412A. In addition, the repairing step also includes electrically connecting the first electrode 432 of the backup joint 430 to the first electrode 422A of the first joint 422A. In some embodiments, since the first metal pattern 450A is originally electrically connected to the first electrode 422A, and the extension 440A (440) can overlap the first metal pattern 450A. Therefore, the repairing step may include welding so that the overlapping extension 440A and the first metal pattern 450A are connected together. For example, a welding tool WD can be used to perform a welding step on the repair opening 484, thereby forming a conductive pattern 406 that penetrates the insulating layer 470. The conductive pattern 406 can connect the unwelded portion of the extension 440A and the first metal pattern 450A. As a result, the conductive pattern 404, the first metal pattern 450A, the conductive pattern 406, and the extension 440A can establish a continuous conductive path between the first electrode 422 of the first joint 420 and the first electrode 432 of the backup joint 430. Therefore, the first electrode 432 of the backup joint 430 can receive the signal from the first electrode 422 of the first joint 420, so that the repair sub-pixel 412D can display the brightness intended for the sub-pixel 412A, thereby achieving full functionality of the display device 400.

[0055] Figure 6 Only the sub-pixel 412A that needs to be repaired is used to illustrate the repair method of the display device 400 and its structure after repair. Figure 6 The presented structure can be applied to Figure 4 Repair of all sub-pixels (412A-412C and 414A-414C) in the display device 400 is performed. If none of the sub-pixels (412A-412C and 414A-414C) require repair, the extension 440 may overlap with both the first metal pattern 450A and the second metal pattern 450B, but not be electrically connected to each other. If repair is required, the extension 450 may overlap with one of the first metal pattern 450A and the second metal pattern 450B and be connected to the other of the first metal pattern 450A and the second metal pattern 450B.

[0056] Figure 7 The display device 500 includes a plurality of sub-pixels 510 and Figure 7A single sub-pixel 510 is schematically shown for illustration. Figure 1 , the number of light-emitting units in the sub-pixel 510 (for example, the first sub-pixel) may be multiple (for example, two light-emitting units), and the number of junctions in the same sub-pixel may be multiple (for example, two first junctions). The sub-pixel 510 includes a light-emitting unit 512 and a light-emitting unit 514, and the display device 500 includes a light-emitting unit junction 520A (or a first junction) and a light-emitting unit junction 520B (or a first junction). The light-emitting unit 512 may correspond to the light-emitting unit junction 520A, and the light-emitting unit 514 may correspond to the light-emitting unit junction 520B. In some embodiments, the same driving signal may be provided to the light-emitting unit 512 of the sub-pixel 510 and the light-emitting unit 514 of the sub-pixel 510. In some embodiments, the light-emitting unit 512 of the sub-pixel 510 and the light-emitting unit 514 of the sub-pixel 510 may be connected in series and controlled by the same sub-pixel circuit (for example, a sub-pixel switch / sub-pixel transistor). In some embodiments, a single sub-pixel 510 may be composed of J light-emitting units electrically connected in series and controlled by the same switching element (e.g., a transistor), where J may be greater than or equal to 2. Furthermore, the display device 500 further includes a redundant joint 530, which allows for repair of one of the light-emitting units 512 and 514. Therefore, the redundant joint 530 can provide repair for different light-emitting units in the same sub-pixel.

[0057] In this embodiment, the light-emitting unit 512 and the light-emitting unit 514 include, for example, light-emitting diodes (LEDs) and are configured to emit light of the same color. The light-emitting unit junction 520A includes a first electrode 522A and a second electrode 524A, and the light-emitting unit junction 520B includes a first electrode 522B and a second electrode 524B. The first electrode 522A and the first electrode 522B may be electrodes of the same polarity, such as P electrodes, while the second electrode 524A and the second electrode 524B may be electrodes of the same polarity, such as N electrodes. In this embodiment, the second electrode 524A of the light-emitting unit junction 520A and the first electrode 522B of the light-emitting unit junction 520B may be connected to each other, for example, via a connection pattern 502. Furthermore, the first electrode 522A of the light-emitting unit junction 520A is connected to the connection pattern 504, and the second electrode 524B of the light-emitting unit junction 520B is connected to the connection pattern 506. In some embodiments, one of the connection pattern 504 and the connection pattern 506 may be connected to an N-pole signal, while the other may be connected to a P-pole signal. In some embodiments, one of the connection pattern 504 and the connection pattern 506 can be connected to the ground potential and the other can be connected to a switching element (transistor, not shown) in the sub-pixel circuit. In some embodiments, the light-emitting unit 512 and the light-emitting unit 514 are connected in series and controlled by the same switching element.

[0058] The display device 500 also includes an extension portion 540, which may include a first electrode extension portion 542 and a second electrode extension portion 544. The first electrode extension portion 542 may be electrically connected to the first electrode 532 of the backup joint portion 530, while the second electrode extension portion 544 may be electrically connected to the second electrode 534 of the backup joint portion 530. The display device 500 also includes a metal pattern 550, which may include a first electrode metal pattern 552, a second electrode metal pattern 554, and a series metal pattern 556. The first electrode metal pattern 552 may be electrically connected to the first electrode 522A of the light-emitting unit joint portion 520A and overlap with the first electrode extension portion 542. The second electrode metal pattern 554 may be electrically connected to the second electrode 524B of the light-emitting unit joint portion 520B and overlap with the second electrode extension portion 544. The series metal pattern 556 can electrically connect the second electrode 524A of the light emitting unit joint portion 520A and the first electrode 522B of the light emitting unit joint portion 520B, and overlap with the first electrode extension portion 542 and the second electrode extension portion 544 .

[0059] In this embodiment, the first electrode extension 542 may include a repair region 542A and a repair region 542B, wherein the repair region 552A of the first electrode metal pattern 552 overlaps the repair region 542A, and the repair region 556A of the series metal pattern 556 overlaps the repair region 542B. The second electrode extension 544 may include a repair region 544A and a repair region 544B, wherein the repair region 554A of the second electrode metal pattern 554 overlaps the repair region 544A, and the repair region 556B of the series metal pattern 556 overlaps the repair region 544B.

[0060] When repairing the light-emitting unit 512 in the sub-pixel 510, in addition to bonding the repaired light-emitting unit to the backup joint 530, the first electrode 532 of the backup joint 530 must be electrically connected to the first electrode 522A of the light-emitting unit joint 520A, and the second electrode 534 of the backup joint 530 must be electrically connected to the second electrode 524A of the light-emitting unit joint 520A. Therefore, the repair method for the display device 500 may include electrically connecting the repair region 542A to the repair region 552A and electrically connecting the repair region 544B to the repair region 556B. In this manner, the first electrode 532 of the backup joint 530 can be electrically connected to the first electrode 522A of the light-emitting unit joint 520A via the first electrode extension 542, the connection structure between the repair region 542A and the repair region 552A, the first electrode metal pattern 552, and the connection pattern 504. Meanwhile, the second electrode 534 of the backup joint 530 may be electrically connected to the second electrode 524A of the light emitting unit joint 520A through the second electrode extension 544 , the connection structure between the repair region 544B and the repair region 556B, the series metal pattern 556 , and the connection pattern 502 .

[0061] When repairing the light-emitting unit 514 in the sub-pixel 510, in addition to bonding the repaired sub-pixel to the backup joint 530, the first electrode 532 of the backup joint 530 must be electrically connected to the first electrode 522B of the light-emitting unit joint 520B, and the second electrode 534 of the backup joint 530 must be electrically connected to the second electrode 524B of the light-emitting unit joint 520B. Therefore, the repair method for the display device 500 may include electrically connecting the repair region 542B to the repair region 556A, and electrically connecting the repair region 544A to the repair region 554A. In this manner, the first electrode 532 of the backup joint 530 can be electrically connected to the first electrode 522B of the light-emitting unit joint 520B via the first electrode extension 542, the connection structure between the repair region 542B and the repair region 556A, the series metal pattern 556, and the connection pattern 502. Meanwhile, the second electrode 534 of the backup joint 530 may be electrically connected to the second electrode 524B of the light emitting unit joint 520B through the second electrode extension 544 , the connection structure between the repair regions 544A and 554A, the second electrode metal pattern 554 and the connection pattern 506 .

[0062] Figure 8 This is a schematic diagram of the layout of partial components of a display device according to some embodiments of the present disclosure. Display device 600 may be a variant embodiment of display device 500. Therefore, the same reference numerals in the two embodiments shall indicate the same or equivalently replaceable components, and the descriptions of these components may be applied and referenced to each other for understanding. Figure 7 and Figure 8 Embodiment. The display device 600 includes a sub-pixel 510 and a backup joint 530, and further includes a sub-pixel 610, and the sub-pixel 610 includes a light-emitting unit 612 and a light-emitting unit 614. At the same time, the display device 600 also includes a light-emitting unit joint 620A and a light-emitting unit joint 620B. The light-emitting unit 512 of the sub-pixel 510 can correspond to the light-emitting unit joint 520A, and the light-emitting unit 514 of the sub-pixel 510 can correspond to the light-emitting unit joint 520B. The light-emitting unit 612 of the sub-pixel 610 can correspond to the light-emitting unit joint 620A, and the light-emitting unit 614 of the sub-pixel 610 can correspond to the light-emitting unit joint 620B. In addition, the backup joint 530 can provide one of the light-emitting unit 512, the light-emitting unit 514, the light-emitting unit 612, and the light-emitting unit 614 for repair. In other words, the backup joint 530 is a repair structure shared by the sub-pixel 510 and the sub-pixel 610.

[0063] In some embodiments, sub-pixel 510 and sub-pixel 610 may be two sub-pixels in the same pixel. For example, sub-pixel 510 is the first sub-pixel of pixel A, and sub-pixel 610 is the second sub-pixel of pixel A. Sub-pixel 510 and sub-pixel 610 may selectively provide different image colors. In this case, light-emitting unit joints 520A and 520B in sub-pixel 510 may be considered a first joint, while light-emitting unit joints 620A and 620B in sub-pixel 610 may be considered another first joint. The individual light-emitting unit joints of the two sets of first joints may optionally be connected to a backup joint 530 for repair. In some embodiments, sub-pixel 510 and sub-pixel 610 may be two sub-pixels in different pixels. For example, sub-pixel 510 is the first sub-pixel of pixel A, and sub-pixel 610 is the second sub-pixel of pixel B. Sub-pixel 510 and sub-pixel 610 may selectively provide the same or different image colors. At this point, light-emitting unit joints 520A and 520B in sub-pixel 510 can be considered the first joint, while light-emitting unit joints 620A and 620B in sub-pixel 610 can be considered the second joint. The individual light-emitting unit junctions of the first and second joints can be connected to backup joint 530 as needed to facilitate repair. In other words, backup joint 530 can serve as a repair structure within the same pixel or as a repair structure shared by different pixels.

[0064] In this embodiment, the light emitting unit 512 , the light emitting unit 514 , the light emitting unit 612 and the light emitting unit 614 include, for example, light emitting diodes to provide display light. Figure 5 The light-emitting unit joint 520A (first electrode 522A and second electrode 524A), the light-emitting unit joint 520B (first electrode 522B and second electrode 524B), the connection patterns 502 to 506, the metal pattern 550 (first electrode metal pattern 552, second electrode metal pattern 554, and series metal pattern 556), the backup joint 530 (first electrode 532 and second electrode 534), and other components have been described and will not be repeated here.

[0065] The light-emitting unit joint portion 620A includes a first electrode 622A and a second electrode 624A, and the light-emitting unit joint portion 620B includes a first electrode 622B and a second electrode 624B. The first electrode 622A and the first electrode 622B can be electrodes of the same polarity, such as P electrodes, while the second electrode 624A and the second electrode 624B can be electrodes of the same polarity, such as N electrodes. In this embodiment, the second electrode 624A of the light-emitting unit joint portion 620A and the first electrode 622B of the light-emitting unit joint portion 620B can be connected to each other, for example, via a connection pattern 602. The first electrode 622A of the light-emitting unit joint portion 620A is connected to the connection pattern 604, and the second electrode 624B of the light-emitting unit joint portion 620B is connected to the connection pattern 606. In some embodiments, one of the connection pattern 604 and the connection pattern 606 can be connected to an N-pole signal, while the other can be connected to a P-pole signal. In some embodiments, one of the connection pattern 604 and the connection pattern 606 may be connected to a ground potential, while the other may be connected to a switching element (transistor) in the sub-pixel circuit. In some embodiments, the light-emitting unit 612 and the light-emitting unit 614 are connected in series and controlled by the same switching element. In some embodiments, the sub-pixel 510 and the sub-pixel 610 are controlled by different switching elements. For example, the sub-pixel 510 is electrically connected to and controlled by a first switching element, and the sub-pixel 610 is electrically connected to and controlled by a second switching element. The display device 600 also includes an extension 640, and the extension 640 may include a first electrode extension 642 and a second electrode extension 644. In some embodiments, the first electrode extension 642 of the extension 640 and the first electrode extension 542 of the extension 540 may be continuously and integrally connected to the first electrode 532 of the backup joint 530, and the second electrode extension 644 of the extension 640 and the second electrode extension 544 of the extension 540 may be continuously and integrally connected to the second electrode 534 of the backup joint 530, but the present invention is not limited thereto. Therefore, the first electrode extension 642 may be electrically connected to the first electrode 532 of the backup joint 530, and the second electrode extension 644 may be electrically connected to the second electrode 534 of the backup joint 530.

[0066] The display device 600 further includes a metal pattern 650, which may include a first electrode metal pattern 652, a second electrode metal pattern 654, and a series metal pattern 656. The first electrode metal pattern 652 may be electrically connected to the first electrode 622A of the light-emitting unit joint 620A and overlap with the first electrode extension 642. The second electrode metal pattern 654 may be electrically connected to the second electrode 624B of the light-emitting unit joint 620B and overlap with the second electrode extension 644. The series metal pattern 656 may be electrically connected to the second electrode 624A of the light-emitting unit joint 620A and the first electrode 622B of the light-emitting unit joint 620B, and overlap with both the first electrode extension 642 and the second electrode extension 644. In some embodiments, the sub-pixel 510 and the sub-pixel 610 may belong to different pixels. Thus, the light-emitting unit joint portion 520A and the light-emitting unit combining portion 520B can be understood as a first joint portion, the light-emitting unit joint portion 620A and the light-emitting unit combining portion 620B can be understood as a second joint portion, and the metal pattern 550 and the metal pattern 650 can be considered as a first metal pattern and a second metal pattern, respectively. The first joint portion (the light-emitting unit joint portion 520A and the light-emitting unit combining portion 520B) is electrically connected to the first metal pattern (metal pattern 550), the second joint portion (the light-emitting unit joint portion 620A and the light-emitting unit combining portion 620B) is electrically connected to the second metal pattern (metal pattern 650), and the extension portion 640 overlaps with at least one of the first metal pattern (metal pattern 550) and the second metal pattern (metal pattern 650). In some embodiments, the metal pattern 550 and the metal pattern 650 can be made of the same metal layer, but are not limited thereto. In some embodiments, the extension portion 540, the extension portion 640, the first electrode 532 of the backup joint portion 530, and the second electrode 534 of the backup joint portion 530 can be made of the same metal layer, for example, but not limited to this. The first electrode extension portion 542, the first electrode 532 of the backup joint portion 530, and the first electrode extension portion 642 can be formed from a single, continuous conductive pattern. The second electrode extension portion 544, the second electrode 534 of the backup joint portion 530, and the second electrode extension portion 644 can be formed from a single, continuous conductive pattern. In this embodiment, the first electrode extension portion 642 may include a repair region 642A and a repair region 642B, wherein the repair region 652A of the first electrode metal pattern 652 overlaps the repair region 642A, and the repair region 656A of the series metal pattern 656 overlaps the repair region 642B. The second electrode extension 644 may include a repair region 644A and a repair region 644B, wherein the repair region 654A of the second electrode metal pattern 654 overlaps the repair region 644A and the repair region 656B of the series metal pattern 656 overlaps the repair region 644B.

[0067] When light-emitting unit 612 and light-emitting unit 614 need to be repaired, they can be repaired using the same method used to repair light-emitting unit 512 and light-emitting unit 514. Therefore, the redundant joint 530 can be used to repair any one of light-emitting unit 512, light-emitting unit 514, light-emitting unit 612, and light-emitting unit 614. In display device 600, each sub-pixel 510 / 610 has two light-emitting units connected in series, and sub-pixels 510 and 610 can share a repair structure (redundant joint 530). In this way, the number of repair structures (redundant joint 530) can be 1 / 4 of the number of light-emitting units in a sub-pixel, thereby reserving more area for the sub-pixels to achieve a high display aperture ratio.

[0068] Figure 9 This is a schematic diagram of the layout of partial components of a display device according to some embodiments of the present disclosure. Display device 700 may be a variant embodiment of display device 600. Therefore, the same reference numerals in the two embodiments shall indicate the same or equivalently replaceable components, and the descriptions of these components may be applied and referenced to each other for understanding. Figure 7 and Figure 8 Embodiment. The display device 700 includes the sub-pixel 510, the backup joint 530, and the sub-pixel 610, and further includes a sub-pixel 710. The sub-pixel 710 may include a light-emitting unit 712 and a light-emitting unit 714. At the same time, the display device 700 also includes a light-emitting unit joint 720A and a light-emitting unit joint 720B. The light-emitting unit 512 of the sub-pixel 510 may correspond to the light-emitting unit joint 520A, and the light-emitting unit 514 of the sub-pixel 510 may correspond to the light-emitting unit joint 520B. The light-emitting unit 612 of the sub-pixel 610 may correspond to the light-emitting unit joint 620A, and the light-emitting unit 614 of the sub-pixel 610 may correspond to the light-emitting unit joint 620B. The light-emitting unit 712 of the sub-pixel 710 may correspond to the first joint 720A, and the light-emitting unit 714 of the sub-pixel 710 may correspond to the second joint 720B. In addition, the backup joint 530 can be used to repair one of the light emitting units 512, 514, 612, 614, 712, and 714. In other words, the backup joint 530 is a common repair structure for sub-pixels 510, 610, and 710.

[0069] In some embodiments, sub-pixel 510, sub-pixel 610, and sub-pixel 710 may be three sub-pixels in the same pixel. For example, sub-pixel 510 is the first sub-pixel of pixel A, sub-pixel 610 is the second sub-pixel of pixel A, and sub-pixel 710 is the third sub-pixel of pixel A. Sub-pixels 510, 610, and 710 may be selectively used to provide different image colors, but are not limited thereto. In this case, light-emitting unit joints 520A and 520B in sub-pixel 510 may be considered a first joint, light-emitting unit joints 620A and 620B in sub-pixel 610 may be considered another first joint, and light-emitting unit joints 720A and 720B in sub-pixel 710 may be considered yet another first joint. The individual light-emitting unit joints of the three sets of first joints may be connected to the backup joint 530 as needed to facilitate repair. In some embodiments, two of the sub-pixels 510, 610, and 710 are two sub-pixels in the same pixel, and one of the sub-pixels is a sub-pixel in another pixel. For example, sub-pixel 510 is the first sub-pixel of pixel A, sub-pixel 610 is the second sub-pixel of pixel A, and sub-pixel 710 is the third sub-pixel of pixel B. Sub-pixels 510, 610, and 710 can selectively provide the same or different image colors. In some embodiments, sub-pixels 510, 610, and 710 can be three sub-pixels in different pixels. For example, sub-pixel 510 is the first sub-pixel of pixel A, sub-pixel 610 is the second sub-pixel of pixel B, and sub-pixel 710 is the third sub-pixel of pixel C. Sub-pixels 510, 610, and 710 can selectively provide the same or different image colors. At this point, the light-emitting unit joints 520A and 520B in sub-pixel 510 can be understood as the first joint, the light-emitting unit joints 620A and 620B in sub-pixel 610 can be understood as the second joint, and the light-emitting unit joints 720A and 720B in sub-pixel 710 can be understood as the third joint. The individual light-emitting unit junctions of the first, second, and third joints can be connected to the backup joint 530 as needed to achieve repair. In other words, the backup joint 530 can serve as a repair structure within the same pixel or as a repair structure shared by different pixels.

[0070] In this embodiment, the light emitting unit 512 , the light emitting unit 514 , the light emitting unit 612 , the light emitting unit 614 , the light emitting unit 712 and the light emitting unit 714 are, for example, light emitting diodes. Figure 5 and Figure 6Components such as the light-emitting unit joint 520A (first electrode 522A and second electrode 524A), the light-emitting unit joint 520B (first electrode 522B and second electrode 524B), the connection patterns 502-506, the metal pattern 550 (first electrode metal pattern 552, second electrode metal pattern 554, and series connection metal pattern 556), the backup joint 530 (first electrode 532 and second electrode 534), the light-emitting unit joint 620A (first electrode 622A and second electrode 624A), the light-emitting unit joint 620B (first electrode 622B and second electrode 624B), the connection patterns 602-606, the metal pattern 650 (first electrode metal pattern 652, second electrode metal pattern 654, and series connection metal pattern 656) have been described and will not be repeated here.

[0071] The first junction portion 720A includes a first electrode 722A and a second electrode 724A, and the second junction portion 720B includes a first electrode 722B and a second electrode 724B. The first electrode 722A and the first electrode 722B can be electrodes of the same polarity, such as P electrodes, while the second electrode 724A and the second electrode 724B can be electrodes of the same polarity, such as N electrodes. In this embodiment, the second electrode 724A of the first junction portion 720A and the first electrode 722B of the second junction portion 720B can be connected to each other, for example, via a connection pattern 702. The first electrode 722A of the first junction portion 720A is connected to a connection pattern 704, and the second electrode 724B of the second junction portion 720B is connected to a connection pattern 706. The connection pattern 704 and the connection pattern 706 can be connected to other sub-pixels or circuits (not shown). In some embodiments, one of the connection pattern 704 and the connection pattern 706 can be connected to an N-pole signal, while the other can be connected to a P-pole signal. In some embodiments, one of the connection pattern 704 and the connection pattern 706 may be connected to a ground potential, while the other may be connected to a switch element (transistor) in the sub-pixel circuit. In some embodiments, the light-emitting unit 712 and the light-emitting unit 714 are connected in series and controlled by the same switch element. In some embodiments, the sub-pixel 510, the sub-pixel 610, and the sub-pixel 710 are controlled by different switch elements. For example, the sub-pixel 510 is electrically connected to and controlled by a first switch element, the sub-pixel 610 is electrically connected to and controlled by a second switch element, and the sub-pixel 710 is electrically connected to and controlled by a third switch element.

[0072] The display device 700 also includes an extension 740, which may include a first electrode extension 742 and a second electrode extension 744. The first electrode extension 742, the first electrode extension 642, and the first electrode extension 542 are electrically connected, while the second electrode extension 744, the second electrode extension 644, and the second electrode extension 544 are electrically connected. In some embodiments, the first electrode extension 742 may be electrically connected to the first electrode 532 of the backup joint 530, and the second electrode extension 744 may be electrically connected to the second electrode 534 of the backup joint 530. The display device 700 also includes a metal pattern 750, which may include a first electrode metal pattern 752, a second electrode metal pattern 754, and a series metal pattern 756. The first electrode metal pattern 752 may be electrically connected to the first electrode 722A of the first joint 720A and overlap with the first electrode extension 742. The second electrode metal pattern 754 may be electrically connected to the second electrode 724B of the second joint 720B and overlap with the second electrode extension 744. The series metal pattern 756 may electrically connect the second electrode 724A of the first bonding portion 720A and the first electrode 722B of the second bonding portion 720B, and overlap with the first electrode extension 742 and the second electrode extension 744 .

[0073] In this embodiment, the first electrode extension 742 may include a repair region 742A and a repair region 742B, wherein the repair region 752A of the first electrode metal pattern 752 overlaps the repair region 742A, and the repair region 756A of the series metal pattern 756 overlaps the repair region 742B. The second electrode extension 744 may include a repair region 744A and a repair region 744B, wherein the repair region 754A of the second electrode metal pattern 754 overlaps the repair region 744A, and the repair region 756B of the series metal pattern 756 overlaps the repair region 744B.

[0074] When light-emitting unit 712 and light-emitting unit 714 need to be repaired, they can be repaired using the same method used to repair light-emitting unit 512 and light-emitting unit 514. Therefore, the redundant joint 530 can be used to repair any of light-emitting unit 512, light-emitting unit 514, light-emitting unit 612, light-emitting unit 614, light-emitting unit 712, and light-emitting unit 714. In display device 700, each sub-pixel 510 / 610 / 710 has two light-emitting units connected in series, and sub-pixels 510, 610, and 710 can share a repair structure (redundant joint 530). Thus, the number of repair structures (redundant joint 530) and the number of light-emitting units in a sub-pixel can be 1 to 6, thereby reserving more area for the sub-pixels and achieving a high display aperture ratio.

[0075] In summary, the display device of the disclosed embodiment is provided with a backup joint shared by a plurality of sub-pixels for repair. A metal pattern and an extension portion are provided between the joint of an individual sub-pixel and the backup joint portion. Repair can be achieved by joining the light-emitting unit to the backup joint portion, and connecting the metal pattern and the extension portion in a required manner or maintaining electrical disconnection from each other. Therefore, the display device has an ideal manufacturing yield. In addition, the backup joint portion can be shared by a plurality of sub-pixels, and the layout area of the sub-pixels does not need to be sacrificed due to the provision of the backup joint portion, thereby allowing the sub-pixels to be arranged in a denser manner to achieve requirements such as high resolution, high pixel density, and high brightness.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A display device, characterized in that: Include: a first pixel, wherein the first pixel includes a first sub-pixel and a second sub-pixel, and the first sub-pixel and the second sub-pixel are disposed corresponding to two first junctions, wherein each of the two first junctions includes a first electrode and a second electrode; a second pixel, the second pixel including a third sub-pixel and a fourth sub-pixel, wherein the third sub-pixel and the fourth sub-pixel are disposed corresponding to two second junctions, wherein each of the two second junctions includes a first electrode and a second electrode; At least one backup joint portion is adjacent to the first pixel and the second pixel and is electrically connected to the extension portion, wherein the at least one backup joint portion includes a first electrode and a second electrode; Among them, the first electrode of one of the two first joining portions is electrically connected to the first metal pattern, the first electrode of one of the two second joining portions is electrically connected to the second metal pattern, and the extension portion is arranged on the first metal pattern and the second metal pattern, and overlaps with at least one of the first metal pattern and the second metal pattern.

2. The display device according to claim 1, wherein The display device further includes an insulating layer disposed between the extending portion and at least one of the first metal pattern and the second metal pattern.

3. The display device according to claim 1, wherein The color of the first sub-pixel is different from the color of the second sub-pixel.

4. The display device according to claim 1, wherein The first sub-pixel and the second sub-pixel are controlled by a first switching element and a second switching element respectively.

5. The display device according to claim 1, wherein The first electrode of the at least one redundant joint portion is connected to the extending portion.

6. The display device according to claim 5, wherein: The first electrode of the at least one backup joint portion and the extending portion are a continuous and integrated conductive pattern.

7. The display device according to claim 1, wherein The extension portion includes a first electrode extension portion and a second electrode extension portion. The first electrode of the at least one backup joint portion is connected to the first electrode extension portion, and the second electrode of the at least one backup joint portion is connected to the second electrode extension portion.

8. The display device according to claim 1, wherein The second electrode of each of the two first joints, the two second joints, and the at least one redundant joint is connected to the same potential.

9. The display device according to claim 1, wherein The extending portion overlaps with one of the first metal pattern and the second metal pattern, and the extending portion is connected to one of the first metal pattern and the second metal pattern.

10. The display device according to claim 1, wherein The extending portion overlaps with both the first metal pattern and the second metal pattern.

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