Display devices

Abstract

A display device is provided. The display device includes: a first electrode including a first electrode surface and a second electrode surface, the first electrode surface extending in a first direction, the second electrode surface connected to one end of the first electrode surface and extending in a second direction different from the first direction; a second electrode including a third electrode surface and a fourth electrode surface, the third electrode surface extending in the first direction, spaced apart from and facing the first electrode surface, the fourth electrode surface connected to one end of the third electrode surface and extending in the second direction, spaced apart from and facing the second electrode surface; and at least one light-emitting element between the first and second electrodes and including a first light-emitting element between the first and third electrode surfaces and a second light-emitting element between the second and fourth electrode surfaces.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2019-0073659, filed on June 20, 2019, in the Korean Intellectual Property Office, and Korean Patent Application No. 10-2020-0057033, filed on May 13, 2020, in the Korean Intellectual Property Office, which are hereby incorporated by reference for all purposes as if fully set forth herein. Technical Field

[0003] The present disclosure relates to a display device and a method of manufacturing the display device. Background Art

[0004] With the development of multimedia, the importance of display devices has increased. Therefore, various types of display devices, such as organic light emitting displays (OLEDs) and liquid crystal displays (LCDs), have been used.

[0005] A display device for displaying an image includes a display panel, such as an organic light-emitting display panel or a liquid crystal display panel. Among display panels, an organic light-emitting display panel includes an organic light-emitting element, such as a light-emitting diode (LED). Light-emitting diodes (LEDs) include organic light-emitting diodes using organic materials as fluorescent materials and inorganic light-emitting diodes using inorganic materials as fluorescent materials. Summary of the Invention

[0006] An aspect of the present disclosure is to provide a display device including a plurality of electrodes having electrode surfaces extending in directions different from each other, and wherein light emitting elements located between the electrodes are aligned in different directions.

[0007] Another aspect of the present disclosure is to provide a display device that emits light in various directions without fixing the emission direction of light emitted from a light emitting element.

[0008] However, aspects of the present disclosure are not limited to the aspects set forth herein. The above and other aspects of the present disclosure will become more apparent to those skilled in the art to which the present disclosure pertains by referencing the detailed description of the present disclosure given below.

[0009] The effects of the present disclosure are not limited to the above-described effects, and other effects not described herein will become apparent to those skilled in the art from the following description.

[0010] According to an embodiment of the present disclosure, a display device includes: a first electrode, including a first electrode surface and a second electrode surface, the first electrode surface extending in a first direction, the second electrode surface connected to one end of the first electrode surface and extending in a second direction different from the first direction; a second electrode, including a third electrode surface and a fourth electrode surface, the third electrode surface extending in the first direction and spaced apart from and facing the first electrode surface, the fourth electrode surface connected to one end of the third electrode surface and extending in the second direction, spaced apart from and facing the second electrode surface; and at least one light-emitting element between the first electrode and the second electrode and including a first light-emitting element between the first electrode surface and the third electrode surface and a second light-emitting element between the second electrode surface and the fourth electrode surface.

[0011] The light emitting elements may have a shape extending in one direction, wherein a first angle as an acute angle between a long axis of a first light emitting element and the first direction is different from a second angle as an acute angle between a long axis of a second light emitting element and the first direction.

[0012] The first angle may be greater than the second angle.

[0013] The first electrode may further include a fifth electrode surface connected to the other end of the first electrode surface and extending in a third direction different from the first direction and the second direction, the second electrode may further include a sixth electrode surface connected to the other end of the third electrode surface, extending in the third direction, the sixth electrode surface being spaced apart from the fifth electrode surface and facing the fifth electrode surface, and the light-emitting element may further include a third light-emitting element between the fifth electrode surface and the sixth electrode surface.

[0014] The third angle, which is an obtuse angle between the long axis of the third light emitting element and the first direction, may be greater than the first angle.

[0015] The direction of the long axis of the first light emitting element, the direction of the long axis of the second light emitting element, and the direction of the long axis of the third light emitting element intersect with each other.

[0016] The display device may further include a first contact electrode contacting one end of the first light emitting element and a first electrode surface of the first electrode; and a second contact electrode contacting the other end of the first light emitting element and a third electrode surface of the second electrode.

[0017] The first contact electrode may extend in the second direction from a portion where the first electrode surface is connected to the second electrode surface to make contact with the second electrode surface and one end of the second light emitting element.

[0018] The third electrode surface of the second electrode may be connected to the fourth electrode surface of the second electrode, and the second contact electrode may extend in the second direction from the portion where the third electrode surface is connected to the fourth electrode surface to contact the fourth electrode surface and the other end of the second light emitting element.

[0019] The second electrode may include a first segment including the third electrode surface; and a second segment spaced apart from the first segment and including the fourth electrode surface.

[0020] The display device may further include a third contact electrode contacting one end of the second light emitting element and the second electrode surface of the first electrode; and a fourth contact electrode contacting the other end of the second light emitting element and a fourth electrode surface of the second segment.

[0021] According to another embodiment of the present disclosure, a display device includes: a first electrode, including a first electrode extending portion and a first electrode extension portion, the first electrode extension portion extending in a first direction, the first electrode extension portion being formed by extending at least a portion of the first electrode extension portion; a second electrode, including a second electrode extending portion and a second electrode bent portion, the second electrode extension portion extending in the first direction to be spaced apart from the first electrode extension portion and facing the first electrode extension portion, the second electrode bent portion being formed by bending at least a portion of the second electrode extension portion to be spaced apart from the first electrode extension portion and facing the first electrode extension portion; and at least one light-emitting element, between the first electrode extension portion and the second electrode bent portion, and having a shape such that a direction of a long axis of the at least one light-emitting element intersects a direction of a long axis of another light-emitting element.

[0022] The first electrode extension portion may include a first electrode surface extending in a first direction and a second electrode surface extending in a second direction different from the first direction, the second electrode bent portion may include a third electrode surface spaced apart from and facing the first electrode surface and a fourth electrode surface spaced apart from and facing the second electrode surface, and the at least one light emitting element may include a first light emitting element between the first electrode surface and the third electrode surface and a second light emitting element between the second electrode surface and the fourth electrode surface.

[0023] The display device may further include a first contact electrode contacting the first electrode extension portion and one end of the first light emitting element; and a second contact electrode contacting the second electrode bent portion and the other end of the first light emitting element.

[0024] The display device may further include: a third electrode between the first electrode extension portion and the second electrode bent portion; and a fourth electrode between the third electrode and the second electrode bent portion, wherein the third electrode includes a plurality of third electrode segments spaced apart from each other in the first direction, and wherein the fourth electrode includes a plurality of fourth electrode segments spaced apart from each other in the first direction.

[0025] The light-emitting elements may include: a third light-emitting element between the first electrode extension and one of the third electrode segments; a fourth light-emitting element between the third electrode segment and one of the fourth electrode segments; and a fifth light-emitting element between the fourth electrode segment and the second electrode bend.

[0026] The third electrode segment may include a first sub-segment and a second sub-segment, the first sub-segment being spaced apart from and facing the first electrode surface of the first electrode extension, the second sub-segment being spaced apart from and facing the second electrode surface, and the at least one light-emitting element may include a sixth light-emitting element and a seventh light-emitting element, the sixth light-emitting element being between the first electrode surface and the first sub-segment, and the seventh light-emitting element being between the second electrode surface and the second sub-segment.

[0027] The display device may further include: a third contact electrode contacting the first sub-segment and one end of the sixth light emitting element; and a fourth contact electrode contacting the second sub-segment and one end of the seventh light emitting element, wherein the third contact electrode is spaced apart from the fourth contact electrode in the first direction.

[0028] According to other embodiments of the present disclosure, a display device includes: a plurality of pixels, at least one light-emitting area is defined in each pixel, and each pixel includes: a first electrode, including a first electrode extension portion and a first electrode extension portion, the first electrode extension portion extending in a first direction, the first electrode extension portion being formed by extending at least a portion of the first electrode extension portion; a second electrode, including a second electrode extension portion and a second electrode bent portion, the second electrode extension portion extending in the first direction to be spaced apart from and facing the first electrode extension portion, the second electrode bent portion being formed by bending at least a portion of the second electrode extension portion to be spaced apart from and facing the first electrode extension portion; and a first light-emitting element and a second light-emitting element, between the first electrode extension portion and the second electrode bent portion and each having a long axis extending in directions intersecting each other, wherein the plurality of pixels include: a first pixel including a first light-emitting area; and a second pixel adjacent to the first pixel and including a second light-emitting area and a third light-emitting area spaced apart from each other in the first direction.

[0029] The second electrode may include a second electrode rod extending in a fourth direction crossing the first direction, wherein second electrode extension portions of the first and second light emitting regions branch from the second electrode rod, and wherein the second electrode extension portions of the second and third light emitting regions are connected to each other.

[0030] The first electrode extension portion may include a first electrode surface extending in a first direction and a second electrode surface extending in a second direction different from the first direction, wherein the second electrode bent portion may include a third electrode surface facing the first electrode surface and a fourth electrode surface facing the second electrode surface, and wherein the at least one light-emitting element may include a first light-emitting element between the first electrode surface and the third electrode surface and a second light-emitting element between the second electrode surface and the fourth electrode surface.

[0031] The display device may further include a partition wall surrounding the light emitting region of each of the pixels and including an opening region exposing the light emitting region, wherein the second electrode extending portion and the second electrode bent portion may be disposed between the first electrode and the partition wall.

[0032] The partition wall may be disposed between adjacent pixels and may include a partition wall extension portion and a partition wall bent portion, wherein the partition wall extension portion extends in a first direction and corresponds to a first electrode surface of the first electrode extension portion, and the partition wall bent portion extends in a second direction and corresponds to a second electrode surface of the first electrode extension portion.

[0033] The partition wall extension portion and the partition wall bent portion may be disposed between a region between the second and third light emitting regions of the second pixel and the first light emitting region of the first pixel.

[0034] The opening area may include a first opening portion, a second opening portion and a third opening portion, the first electrode extension portion is arranged in the first opening portion, the first electrode extension portion is arranged in the second opening portion and the width of the second opening portion in the fourth direction is greater than the width of the first opening portion in the fourth direction, the third opening portion connects the first opening portion and the second opening portion and the width of the third opening portion narrows along the first direction, and the partition wall extension portion may be arranged to correspond to the second opening portion of the opening area, and the partition wall bent portion may be arranged to correspond to the third opening portion of the opening area.

[0035] The partition wall may include a first opening area exposing a first light emitting area of ​​the first pixel and a second opening area exposing a second light emitting area and a third light emitting area of ​​the second pixel, and the first opening area may include one second opening portion, and the second opening area may include a plurality of second opening portions spaced apart from each other in the first direction.

[0036] Among the plurality of pixels, the first pixels and the second pixels may be alternately arranged along the fourth direction, and the first opening regions and the second opening regions may also be alternately arranged along the fourth direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and other aspects of the present disclosure will become more apparent by describing in detail embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0038] Figure 1 is a plan view of a display device according to an embodiment;

[0039] Figure 2 yes Figure 1 an enlarged view of part A;

[0040] Figure 3 is a schematic diagram illustrating an emission direction of light emitted from a light emitting element included in a display device according to an embodiment;

[0041] Figure 4 It is along Figure 2 A cross-sectional view taken along line Q1-Q1';

[0042] Figure 5 is a schematic diagram of a light emitting element according to an embodiment;

[0043] Figures 6 to 15 is a schematic diagram illustrating a process of manufacturing a display device according to an embodiment;

[0044] Figure 16 is a plan view of a display device according to another embodiment; and

[0045] Figure 17 yes Figure 16 An enlarged view of part B. DETAILED DESCRIPTION

[0046] By referring to the detailed description and drawings of the embodiments, the features of the present invention and the methods for realizing the present invention can be more easily understood. Hereinafter, the embodiments will be described in more detail with reference to the drawings. However, the described embodiments can be implemented in various forms and should not be interpreted as being limited to the embodiments shown herein. On the contrary, these embodiments are provided as examples so that this disclosure will be thorough and complete and will fully convey the aspects and features of the present invention to those skilled in the art. Therefore, processes, elements and techniques that are not necessary for those of ordinary skill in the art to fully understand the aspects and features of the present invention may not be described.

[0047] Unless otherwise specified, the same reference numerals denote the same elements throughout the drawings and written description, and therefore, the description of the same elements will not be repeated. In addition, parts that are not relevant to the description of the embodiments may not be shown to make the description clear. In the drawings, the relative sizes of elements, layers, and regions may be exaggerated for clarity.

[0048] Various embodiments are described herein with reference to cross-sectional views that are schematic representations of embodiments and / or intermediate structures. As such, variations from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are contemplated. Furthermore, specific structural or functional descriptions disclosed herein are merely illustrative, for purposes of describing embodiments according to the present disclosure. Accordingly, the embodiments disclosed herein should not be construed as limited to the specific illustrated shapes of regions, but rather are intended to encompass deviations in shape resulting, for example, from manufacturing.

[0049] For example, an implanted region shown as a rectangle will typically have rounded or curved features and / or a gradient of implant concentration at its edges, rather than a binary change from implanted region to non-implanted region. Similarly, a buried region formed by implantation may result in some implantation in the region between the buried region and the surface through which the implantation occurs. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the actual shape of the regions of the device and are not intended to be limiting. Furthermore, as will be appreciated by those skilled in the art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present disclosure.

[0050] In the detailed description, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of the various embodiments. However, it is apparent that the various embodiments can be practiced without these specific details or with one or more equivalent arrangements. In other instances, well-known structures and devices are shown in block diagram form to avoid unnecessarily obscuring the various embodiments.

[0051] It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, the first element, first component, first region, first layer, or first part described below may be referred to as a second element, second component, second region, second layer, or second part without departing from the spirit and scope of the present disclosure.

[0052] For ease of description, spatial relative terms such as "below", "below", "lower", "under", "above", "upper", etc. may be used herein to describe the relationship between an element or feature and another element (or elements) or feature (or features) as shown in the figures. It should be understood that, in addition to the orientation depicted in the figures, spatial relative terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as being "below" or "below" or "under" other elements or features will then be oriented "above" the other elements or features. Therefore, the exemplary terms "below" and "under" can include both above and below orientations. The device can be oriented otherwise (e.g., rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein should be interpreted accordingly. Similarly, when a first part is described as being arranged "on" a second part, this means that the first part is arranged at the upper or lower side of the second part, and is not limited to the upper side of the second part based on the direction of gravity.

[0053] It should be understood that when an element, layer, region, or component is referred to as being "on," "connected to," or "coupled to" another element, layer, region, or component, it may be directly on, directly connected to, or directly coupled to the other element, layer, region, or component, or there may be one or more intervening elements, layers, regions, or components. However, "directly connected / directly coupled" means that one component is directly connected to or directly coupled to another component without an intervening component. At the same time, other expressions describing the relationship between components (such as "between," "directly between," or "adjacent to" and "directly adjacent to") can be interpreted similarly. In addition, it should also be understood that when an element or layer is referred to as being "between" two elements or layers, it may be the only element or layer between the two elements or layers, or there may also be one or more intervening elements or layers.

[0054] For the purposes of this disclosure, expressions such as "at least one of," when following a list of elements, modify the entire list of elements and do not modify the individual elements of the list. For example, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" may be interpreted as X only, Y only, Z only, or any combination of two or more of X, Y, and Z, such as, for example, XYZ, XYY, YZ, and ZZ. Throughout, like numbers refer to like elements. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0055] The terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the present disclosure. As used herein, the singular forms "a" and "an" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that when used in this specification, the terms "comprises," "comprising," "have," "having," "includes," and "including" specify the presence of set forth features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof.

[0056] As used herein, the terms "substantially," "about," "approximately," and similar terms are used as terms of approximation and not as terms of degree, and are intended to allow for inherent deviations in measurements or calculations that will be recognized by one of ordinary skill in the art. As used herein, "about" or "approximately" includes the stated value and the average value within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the stated value. Additionally, "may," when used in describing embodiments of the present disclosure, mean "one or more embodiments of the present disclosure."

[0057] When a certain embodiment can be implemented differently, a specific process order can be performed differently from the described order. For example, two processes described in succession can be performed substantially simultaneously, or in an order opposite to the described order.

[0058] In addition, any numerical range disclosed and / or listed herein is intended to include all subranges of the same numerical precision contained within the range. For example, the range of "1.0 to 10.0" is intended to include all subranges between the minimum value 1.0 and the maximum value 10.0 (and including 1.0 and 10.0), that is, a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as, for example, 2.4 to 7.6. Any maximum numerical limit described herein is intended to include all lower numerical limits contained therein, and any minimum numerical limit described in this specification is intended to include all higher numerical limits contained therein. Therefore, the applicant reserves the right to amend this specification (including claims) to explicitly describe any subranges contained within the range explicitly described herein.

[0059] The electronic devices or electrical devices and / or any other related devices or components according to the embodiments of the present disclosure described herein can be implemented using any appropriate hardware, firmware (e.g., an application specific integrated circuit), software, or a combination of software, firmware, and hardware. For example, the various components of these devices can be formed on an integrated circuit (IC) chip or on separate IC chips. In addition, the various components of these devices can be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on a substrate.

[0060] In addition, the various components of these devices can be processes or threads running on one or more processors in one or more computing devices, executing computer program instructions and interacting with other system components for performing the various functions described herein. The computer program instructions are stored in a memory that can be implemented in a computing device using standard storage devices, such as, for example, random access memory (RAM). The computer program instructions can also be stored in other non-transitory computer-readable media, such as, for example, a CD-ROM, a flash drive, etc. In addition, those skilled in the art will recognize that without departing from the spirit and scope of the embodiments of the present disclosure, the functionality of the various computing devices can be combined or integrated into a single computing device, or the functionality of a particular computing device can be distributed to one or more other computing devices.

[0061] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. It should also be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and / or this specification, and should not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.

[0062] Figure 1 is a plan view of a display device according to an embodiment.

[0063] refer to Figure 1 , the display device 10 may include a plurality of pixels PX (see Figure 6 Each of the pixels PX includes at least one light emitting element 300 for emitting light of a given wavelength band to display a given color.

[0064] Each of the pixels PX may include a first subpixel PX1, a second subpixel PX2, and a third subpixel PX3. The first subpixel PX1 may emit light of a first color, the second subpixel PX2 may emit light of a second color, and the third subpixel PX3 may emit light of a third color. Figure 1, it is shown that the pixel PX includes three sub-pixels PXn, and the two pixels PX include a total of six sub-pixels PXn. In an embodiment, the first sub-pixel PX1 and the fourth sub-pixel PX4 may emit red light of a first color, the second sub-pixel PX2 and the fifth sub-pixel PX5 may emit green light of a second color, and the third sub-pixel PX3 and the sixth sub-pixel PX6 may emit blue light of a third color. However, the present disclosure is not limited thereto, and the pixel PX may include a greater number of sub-pixels PXn. In addition, in the display device 10, Figure 1 The plurality of pixels PX or sub-pixels PXn shown in FIG may be arranged in the first direction DR1 and the second direction DR2 .

[0065] Each of the sub-pixels PXn of the display device 10 may include an area defined as a light-emitting area LA or a non-light-emitting area NLA. The light-emitting area LA is defined as an area where the light-emitting element 300 included in the display device 10 is located to emit light of a given wavelength band. The non-light-emitting area NLA, which is an area other than the light-emitting area LA, is defined as an area where no light-emitting element 300 is located and does not emit light.

[0066] In an embodiment, each of the sub-pixels PXn of the display device 10 may include at least one light emitting area LA. Figure 1 As shown in FIG, each of the first subpixel PX1, the third subpixel PX3, and the fifth subpixel PX5 may include one light emitting area LA, and each of the second subpixel PX2, the fourth subpixel PX4, and the sixth subpixel PX6 may include two light emitting areas LA. Each of the pixels PX may include three subpixels PXn, and the pixels PX of the display device 10 may include first-type pixels PXa and second-type pixels PXb of different types.

[0067] For example, the first-type pixel PXa includes two sub-pixels PX1 and PX3, each having one emission area LA, and one sub-pixel PX2 having two emission areas LA. The second-type pixel PXb includes one sub-pixel PX5 having one emission area LA, and two sub-pixels PX4 and PX6, each having two emission areas LA. That is, the first-type pixel PXa may have four emission areas LA, the second-type pixel PXb may have five emission areas LA, and the display device 10 may be provided with a plurality of unit pixels, each unit pixel having a first-type pixel PXa and a second-type pixel PXb.

[0068] When each subpixel PXn has one light emitting area LA, the six subpixels PXn have six light emitting areas LA. However, in the display device 10 according to the embodiment, the six subpixels PXn may have nine light emitting areas LA. That is, in the display device 10 according to the embodiment, some of the subpixels PXn may include a plurality of light emitting areas LA, and thus the light emitting efficiency per unit area may be improved.

[0069] As will be described later, multiple electrodes (e.g., first electrode 210 and second electrode 220) are located in a light-emitting area LA, and multiple light-emitting elements 300 are located between the multiple electrodes. According to embodiments, each light-emitting element 300 is located between the first electrode extension 210E of the first electrode 210 and the second electrode bent portion 220D of the second electrode 220, and the light-emitting elements 300 can be aligned in different directions. Multiple light-emitting elements 300 with different alignment directions are arranged in one light-emitting area LA, and each light-emitting area LA can have a light emission direction that depends on the alignment direction of the light-emitting element 300. Details will be described later with reference to other drawings.

[0070] The sub-pixel PXn of the display device 10 may include a plurality of electrodes 210 and 220 and a plurality of light emitting elements 300. In addition, the present disclosure is not limited thereto, and the sub-pixel PXn may include a plurality of electrodes 210 and 220 and a plurality of light emitting elements 300. Figure 1 Many components shown in FIG, for example, a plurality of partition walls 400 and a plurality of insulating layers 510, 520 and 550 (see FIG. Figure 4 ).

[0071] The plurality of electrodes 210 and 220 may be electrically connected to the light emitting element 300 and may receive a predetermined voltage to allow the light emitting element 300 to emit light. At least a portion of each of the electrodes 210 and 220 may be used to form an electric field in the subpixel PXn to align the light emitting element 300.

[0072] The plurality of electrodes 210 and 220 may include a first electrode 210 and a second electrode 220. In an embodiment, the first electrode 210 may be a pixel electrode separated for each sub-pixel PXn, and the second electrode 220 may be a common electrode commonly connected along each sub-pixel PXn. One of the first electrode 210 and the second electrode 220 may be an anode electrode of the light-emitting element 300, and the other of the first electrode 210 and the second electrode 220 may be a cathode electrode of the light-emitting element 300. However, the present disclosure is not limited thereto.

[0073] The first electrode 210 may include a first electrode rod 210S extending in the first direction DR1, and may include a first electrode branch 210B branching from the first electrode rod 210S and extending in a second direction DR2 intersecting the first direction DR1, and the second electrode 220 may include a second electrode rod 220S extending in the first direction DR1, and may include a second electrode branch 220B branching from the second electrode rod 220S and extending in the second direction DR2.

[0074] Both ends of the first electrode rod 210S of any one pixel PX are spaced apart and terminated between corresponding sub-pixels PXn, and can be placed on the same straight line as the first electrode rods 210S of adjacent sub-pixels PXn (e.g., belonging to the same row and adjacent in the first direction DR1). Therefore, the first electrode rod 210S located in each sub-pixel PXn can apply different electrical signals to the first electrode branches 210B, and the first electrode branches 210B can be driven separately.

[0075] The first electrode branches 210B branch from at least a portion of the first electrode rods 210S and are spaced apart from the first electrode rods 210S and extend in the second direction DR2. The first electrode branches 210B may branch from the first electrode rods 210S, but the branched regions may be disconnected along the cutout portions CB during the manufacturing process of the display device 10. The first electrode branches 210B may be connected to the circuit element layer via electrode contact holes CNTD formed in the first electrode extensions 210E, which will be described later. In other words, the first electrode rods 210S may be floating electrodes. The first electrode branches 210B may terminate spaced apart from the second electrode rods 220S, which are positioned facing the first electrode rods 210S.

[0076] According to an embodiment, the first electrode branch 210B may include a first electrode extending portion 210C extending in the second direction DR2 and a first electrode extending portion 210E formed by expanding at least a portion of the first electrode extending portion 210C.

[0077] The first electrode extension portion 210C may be an electrode extending in a direction branching from the first electrode rod 210S (e.g., in the second direction DR2), and the first electrode extension portion 210E may be a region in which a portion of the first electrode extension portion 210C is extended in width in a direction different from the second direction DR2 (e.g., in the first direction DR1). That is, the width of the first electrode extension portion 210E may be greater than the width of the first electrode extension portion 210C. The first electrode extension portion 210E may provide a region in which the light-emitting element 300 is positioned, and the light-emitting element 300 may not be located in the first electrode extension portion 210C. The first electrode extension portion 210E may be electrically connected to the circuit element layer through an electrode contact hole CNTD, which will be described later, and may transmit an electrical signal (e.g., a predetermined electrical signal) to the light-emitting element 300.

[0078] The first electrode extension portion 210E is extended to have a width (eg, a predetermined width) so as to include a plurality of electrode surfaces ES (eg, Figure 2 ). Unlike the first electrode extension portion 210C, the first electrode extension portion 210E may include one electrode surface ES extending in the second direction DR2 and another electrode surface ES extending in a direction different from the one electrode surface ES and the first electrode extension portion 210C. Depending on the embodiment, the light-emitting elements 300, each having one end located on the electrode surface ES of the first electrode extension portion 210E, may be aligned in different orientations. Therefore, in the first electrode extension portion 210E, the light-emitting element 300 may be located on the electrode surface ES, thereby forming the light-emitting area LA of each subpixel PXn.

[0079] In some cases, a portion of the first electrode extension portion 210C may be disconnected. For example, in the case of the first subpixel PX1, the first subpixel PX1 includes one light-emitting area LA, and therefore, one first electrode branch 210B may include one first electrode extension portion 210E and one first electrode extension portion 210C. In the case of the second subpixel PX2, the second subpixel PX2 includes two light-emitting areas LA, and therefore, one first electrode branch 210B may include two first electrode extension portions 210E and two first electrode extension portions 210C.

[0080] Meanwhile, the first electrode branch 210B may not necessarily include the first electrode expansion portion 210E, and at least one first electrode branch 210B may be positioned for each sub-pixel PXn. Figure 1Differently, when the first electrode 210 includes one or more first electrode branches 210B, some of the first electrode branches 210B include the first electrode extension portion 210E, while other first electrode branches 210B may omit the first electrode extension portion 210E. Detailed description thereof will be made with reference to other embodiments.

[0081] The second electrode 220 may include a second electrode rod 220S extending in the first direction DR1 and spaced apart from the first electrode rod 210S so as to face the first electrode rod 210S, and at least one second electrode branch 220B branching from the second electrode rod 220S and extending in the second direction DR2. The second electrode rod 220S may extend to a plurality of adjacent sub-pixels PXn at its other end in the first direction DR1. Therefore, both ends of the second electrode rod 220S of any pixel PX may be connected to the second electrode rod 220S of the corresponding adjacent pixel PX. In an embodiment, the second electrode rod 220S may be connected to the second electrode branch 220B of each sub-pixel PXn. Multiple sub-pixels PXn may share a second electrode rod 220S with adjacent sub-pixels PXn and may receive the same electrical signal. In other embodiments, the second electrode rod 220S may be electrically connected to the circuit element layer via another contact hole.

[0082] The second electrode branch 220B may be spaced apart from the first electrode branch 210B and may face the first electrode branch 210B, and may terminate spaced apart from the first electrode rod 210S. One end of the second electrode branch 220B may be connected to the second electrode rod 220S, and the other end of the second electrode branch 220B may be located in the sub-pixel PXn spaced apart from the first electrode rod 210S.

[0083] According to an embodiment, the second electrode branch 220B may include a second electrode extension portion 220C extending in the second direction DR2 and spaced apart from and facing the first electrode extension portion 210C, and the second electrode branch 220B may also include a second electrode bent portion 220D formed by bending at least a portion of the second electrode extension portion 220C, and the second electrode bent portion 220D is spaced apart from and facing the first electrode extension portion 210E.

[0084] One end of the second electrode extension portion 220C is connected to the second electrode rod 220S, and the other end of the second electrode extension portion 220C is spaced apart from and terminates at the first electrode rod 210S. The second electrode extension portion 220C is positioned spaced apart from and faces the first electrode extension portion 210C.

[0085] A portion of the second electrode extension portion 220C may be bent such that the second electrode bent portion 220D faces the electrode surface ES of the first electrode extension portion 210E while being spaced apart from the electrode surface ES of the first electrode extension portion 210E. The second electrode bent portion 220D may also include a plurality of electrode surfaces ES, and these electrode surfaces ES may face the electrode surface ES of the first electrode extension portion 210E while being spaced apart from the electrode surface ES of the first electrode extension portion 210E. For example, the second electrode bent portion 220D may include an electrode surface ES extending in the second direction DR2, such that the second electrode bent portion 220D is spaced apart from the electrode surface ES of the first electrode extension portion 210E extending in the second direction DR2 and faces the electrode surface ES of the first electrode extension portion 210E. Furthermore, the second electrode bent portion 220D may include an electrode surface ES obtained by bending a portion of the second electrode extension portion 220C, such that the second electrode bent portion 220D faces another electrode surface ES extending in another direction (e.g., different from the second direction DR2). According to an embodiment, the other end of each of the light emitting elements 300 is located on the electrode surface ES of the second electrode bent portion 220D, and the light emitting elements 300 may be aligned in various orientations.

[0086] In an embodiment, a plurality of second electrode branches 220B are provided, and each of the second electrode branches 220B may include a second electrode bent portion 220D that partially surrounds the electrode surface ES of the first electrode extension portion 210E. In the accompanying drawings, two second electrode branches 220B are shown to be located in each sub-pixel PXn, and the first electrode branch 210B of each sub-pixel PXn is located between the two second electrode branches 220B. The first electrode branch 210B located between the two second electrode branches 220B can be positioned so that the first electrode extension portion 210E is partially surrounded by the second electrode bent portion 220D. However, the present disclosure is not limited to this. As described above, a larger number of first electrode branches 210B and a larger number of second electrode branches 220B can be located in each sub-pixel PXn.

[0087] The plurality of light-emitting elements 300 may be respectively located between the first electrode branch 210B and the second electrode branch 220B, for example, between the first electrode extension 210E and the second electrode bent portion 220D. In some of the plurality of light-emitting elements 300, one end of the light-emitting element 300 may be electrically connected to the first electrode extension 210E, and the other end of the light-emitting element 300 may be electrically connected to the second electrode bent portion 220D.

[0088] The plurality of light emitting elements 300 are positioned to be spaced apart from each other, and the distance between the plurality of light emitting elements 300 is not particularly limited. In some cases, the plurality of light emitting elements 300 are arranged adjacent to each other to form a group, and in other cases, the light emitting elements 300 may form a group in a state of being spaced apart at regular intervals, may have uneven density, and may be aligned in one direction.

[0089] According to an embodiment, the plurality of light-emitting elements 300 may have a shape in which the long axis extending across both ends extends in one direction, and the directions in which the long axes of the respective light-emitting elements 300 in the plurality of light-emitting elements 300 extend may intersect with each other. The light-emitting element 300 may be located between the first electrode extension portion 210E and the second electrode curved portion 220D, and the respective electrode surfaces ES of the first electrode extension portion 210E and the second electrode curved portion 220D may extend in different directions from each other. Both ends of the light-emitting element 300 may be located between the first electrode extension portion 210E and the second electrode curved portion 220D, and the direction in which the long axis of the light-emitting element 300 extends may vary depending on the direction in which the electrode surface ES extends. The display device 10 according to an embodiment including the first electrode extension portion 210E and the second electrode curved portion 220D may be configured so that the plurality of light-emitting elements 300 have different alignment directions from each other.

[0090] At the same time, despite Figure 1 Although not shown in the figures, the display device 10 according to the embodiment may further include other elements in addition to the plurality of electrodes 210 and 220 and the plurality of light emitting elements 300. A detailed description thereof refers to other drawings.

[0091] Figure 2 yes Figure 1 An enlarged view of part A of FIG.

[0092] refer to Figure 2 , the display device 10 according to the embodiment may include a plurality of contact electrodes 260 and partition walls 400 (eg, Figure 4 4. The first partition wall 410, the second partition wall 420 and the third partition wall 430 shown in FIG.

[0093] The contact electrode 260 may be positioned to partially overlap the first electrode extension 210E and the second electrode bent portion 220D, respectively. In an embodiment, the contact electrode 260 may include a first contact electrode 261 that contacts the first electrode extension 210E and one end of the light emitting element 300, and a second contact electrode 262 that contacts the second electrode bent portion 220D and the other end of the light emitting element 300.

[0094] The first contact electrode 261 may have a shape that partially extends along the outer surface of the first electrode extension portion 210E. The second contact electrode 262 may have a shape that partially extends along the outer surface of the second electrode bent portion 220D. That is, in an embodiment, the first contact electrode 261 and the second contact electrode 262 include corresponding surfaces extending in the second direction DR2, and may include corresponding surfaces extending in a direction different from the second direction DR2. The first contact electrode 261 and the second contact electrode 262 may be spaced apart from each other, and may transmit the electrical signal received from each of the electrodes 210 and 220 to the light emitting element 300 respectively. However, the present disclosure is not limited thereto, and the display device 10 may include a greater number of contact electrodes 260. In addition, the contact electrode 260 may be partially cut, and the cut portions may be spaced apart from each other.

[0095] Each sub-pixel PXn may include at least one partition wall 400. Figure 2 Only the third partition wall 430 positioned to surround the light emitting area LA is shown, but the display device 10 according to the embodiment may further include the first partition wall 410 ( Figure 4 ) and the second partition wall 420 ( Figure 4 As shown in FIG), the first partition wall 410 and the second partition wall 420 are respectively located below the first electrode extension portion 210E and the second electrode bending portion 220D. Figure 2 The third partition wall 430 is described.

[0096] The third partition wall 430 can be positioned to surround the light-emitting area LA of each subpixel PXn. The third partition wall 430 can be formed to distinguish the light-emitting area LA from the non-light-emitting area NLA, and during the manufacturing process of the display device 10, the plurality of light-emitting elements 300 can be located only in the light-emitting area LA. Some areas of the first electrode 210 and the second electrode 220 (i.e., a portion of the first electrode rod 210S, a portion of the second electrode rod 220S, a portion of the first electrode extension portion 210C, and a portion of the second electrode extension portion 220C) can be located on the third partition wall 430. However, the present invention is not limited to this. In some embodiments, when each of the electrodes 210 and 220 is first formed, the third partition wall 430 is disposed on the electrodes 210 and 220, and the third partition wall 430 and the electrodes 210 and 220 can partially overlap each other.

[0097] Meanwhile, the third partition wall 430 is entirely disposed on each of the sub-pixels PXn, but may include an opening region ( LA ) exposing the light emitting region LA and disposed to surround the light emitting region LA. Figure 6The shape of the opening area of ​​the third partition wall 430 may have a structure corresponding to the shape of the emission area LA provided in each sub-pixel PXn or each of the electrodes 210 and 220. Details of the opening area of ​​the third partition wall 430 will be described later with reference to other drawings.

[0098] The first partition wall 410 and the second partition wall 420 can be formed to roughly overlap with some areas of the first electrode branch 210B and the second electrode branch 220B. For example, the first partition wall 410 can be positioned to overlap with some areas of the first electrode extension portion 210E and the first electrode extension portion 210C, and the second partition wall 420 can be positioned to overlap with some areas of the second electrode bend portion 220D and the second electrode extension portion 220C. The first partition wall 410 and the second partition wall 420 can be formed to have substantially the same shape as those components that overlap respectively and can protrude upward. Therefore, the areas of the first electrode 210 and the second electrode 220 that overlap with the first partition wall 410 and the second partition wall 420 can protrude to have a thickness (e.g., a predetermined thickness). The first partition wall 410 and the second partition wall 420 can serve as reflective partition walls so that light emitted from the light-emitting element 300 located between the first electrode 210 and the second electrode 220 is reflected upward. The details of the multiple partition walls 400 will be described later with reference to the cross-sectional view.

[0099] Meanwhile, as described above, the plurality of light emitting elements 300 may be arranged to have different alignment directions. The display device 10 according to the embodiment includes the light emitting elements 300 having various alignment directions, thereby improving visibility of the display device 10 according to the alignment directions.

[0100] Figure 3 is a schematic diagram illustrating an emission direction of light emitted from a light emitting element included in a display device according to an embodiment.

[0101] refer to Figure 3 as well as Figure 1 and Figure 2According to an embodiment, each of the first electrode extension portion 210E and the second electrode curved portion 220D may include at least one electrode surface ES. The first electrode extension portion 210E may include a first electrode surface ES1 extending in a second direction DR2, and a second electrode surface ES2 and a third electrode surface ES3 connected to respective ends of the first electrode surface ES1 and extending in respective directions different from the second direction DR2. The second electrode surface ES2 extends in a fourth direction DR4, which is a direction between the second direction DR2 and one side of the first direction DR1, and the third electrode surface ES3 extends in a third direction DR3, which is a direction between the second direction DR2 and the other side of the first direction DR1.

[0102] The second electrode curved portion 220D may include a fourth electrode surface ES4 extending in the second direction DR2, spaced apart from and facing the first electrode surface ES1, and a fifth electrode surface ES5 and a sixth electrode surface ES6 connected to respective ends of the fourth electrode surface ES4 and extending in respective directions different from the second direction DR2. The fifth electrode surface ES5 is spaced apart from the second electrode surface ES2, faces the second electrode surface ES2, and extends in the fourth direction DR4. The sixth electrode surface ES6 is spaced apart from the third electrode surface ES3, faces the third electrode surface ES3, and extends in the third direction DR3.

[0103] One end of the light-emitting element 300 may be located on the first electrode extension portion 210E, and the other end of the light-emitting element 300 may be located on the second electrode bent portion 220D. In an embodiment, the light-emitting element 300 may include a first light-emitting element 301 located between the first electrode surface ES1 and the fourth electrode surface ES4, a second light-emitting element 302 located between the second electrode surface ES2 and the fifth electrode surface ES5, and a third light-emitting element 303 located between the third electrode surface ES3 and the sixth electrode surface ES6.

[0104] In the first light-emitting element 301, the second light-emitting element 302, and the third light-emitting element 303, the long axis passing through the two corresponding ends may be extended and may be changed according to the extension direction of each corresponding electrode surface ES. For example, the first light-emitting element 301 may be located between the first electrode surface ES1 and the fourth electrode surface ES4, such that one end of the first light-emitting element 301 faces the first direction DR1, the second light-emitting element 302 may be located between the second electrode surface ES2 and the fifth electrode surface ES5, such that one end of the second light-emitting element 302 faces the third direction DR3, and the third light-emitting element 303 may be located between the third electrode surface ES3 and the sixth electrode surface ES6, such that one end of the third light-emitting element 303 faces the fourth direction DR4.

[0105] The first light-emitting element 301, the second light-emitting element 302, and the third light-emitting element 303 are located between the first electrode extension 210E and one of the second electrode bends 220D. The fourth light-emitting element 304, the fifth light-emitting element 305, and the sixth light-emitting element 306 are located between the first electrode extension 210E and the other second electrode bend 220D. The fourth light-emitting element 304 can be aligned in the same direction as the first light-emitting element 301, the fifth light-emitting element 305 can be aligned in the same direction as the third light-emitting element 303, and the sixth light-emitting element 306 can be aligned in the same direction as the second light-emitting element 302.

[0106] Will refer to it later Figure 5 The light-emitting element 300 described may include a plurality of conductive semiconductors and an active layer positioned between the plurality of conductive semiconductors, and light may be emitted from side surfaces at both ends of the light-emitting element 300. In the display device 10 including the light-emitting element 300, the emission direction of light emitted from the light-emitting element 300 may vary depending on the alignment direction of the light-emitting element 300. In the display device 10 according to the embodiment, the plurality of light-emitting elements 300 may have alignment directions different from each other, thereby controlling the emission direction of light emitted from the display device 10. The first electrode extension 210E includes an electrode surface ES extending in a plurality of corresponding directions, rather than an electrode surface ES extending in only one direction, thereby allowing the light-emitting elements 300 of the display device 10 to have various alignment directions. The first light-emitting element 301 is oriented such that the long axis of the first light-emitting element 301 has a first angle θ1, which is a right angle or an acute angle formed relative to the second direction DR2, the second light-emitting element 302 is oriented such that the long axis of the second light-emitting element 302 has a second angle θ2, which is an acute angle formed relative to the second direction DR2, and the third light-emitting element 303 is oriented such that the long axis of the third light-emitting element 303 has a third angle θ3, which is an obtuse angle formed relative to the second direction DR2.

[0107] In an embodiment, the first angle θ1 may have a value greater than the second angle θ2. Because the long axis of the first light-emitting element 301 is oriented in the first direction DR1, the first angle θ1 may have a value substantially close to 90°. In contrast, because the long axes of the second light-emitting element 302 and the third light-emitting element 303 are oriented in the third direction DR3 and the fourth direction DR4, respectively, the second angle θ2 has a value less than 90°, and the third angle θ3 has a value greater than 90°. The respective light-emitting elements 300 (e.g., the first light-emitting element 301, the second light-emitting element 302, and the third light-emitting element 303) may be aligned non-parallel to each other, and the directions in which the respective long axes of the respective light-emitting elements 300 extend may intersect with each other.

[0108] Therefore, the emission light L emitted from each light emitting element 300 can be emitted in various directions. The first emission light L1 and the fourth emission light L4 emitted from the first light emitting element 301 and the fourth light emitting element 304, respectively, can be emitted in the first direction DR1 (e.g., in a direction opposite to the first direction DR1). The second emission light L2 and the sixth emission light L6 emitted from the second light emitting element 302 and the sixth light emitting element 306, respectively, can be emitted in the third direction DR3 (e.g., in a direction opposite to the third direction DR3). The third emission light L3 and the fifth emission light L5 emitted from the third light emitting element 303 and the fifth light emitting element 305, respectively, can be emitted in the fourth direction DR4 (e.g., in a direction opposite to the fourth direction DR4).

[0109] In the display device 10 according to an embodiment, light can be emitted from the light-emitting area LA of each subpixel PXn in various directions. For example, the light-emitting area LA of each subpixel PXn may include a plurality of domains DM depending on the alignment direction of the corresponding light-emitting element 300. The domains DM may include: a first domain DM1 located on one side of the light-emitting area LA in the third direction DR3 based on the center of the light-emitting area LA; a second domain DM2 located on one side of the light-emitting area LA in the fourth direction DR4 based on the center of the light-emitting area LA; a third domain DM3 located on the other side of the light-emitting area LA in the third direction DR3 based on the center of the light-emitting area LA; and a fourth domain DM4 located on the other side of the light-emitting area LA in the fourth direction DR4 based on the center of the light-emitting area LA.

[0110] The light-emitting elements 300 aligned in different directions are located in corresponding domains DM and can be aligned in the direction of each corresponding domain DM, thereby emitting light. Because the first electrode 210 includes the first electrode extension 210E, the light-emitting elements 300 can have different alignment directions depending on the direction of the corresponding electrode surface ES of the first electrode extension 210E. Therefore, in the display device 10, light can be uniformly emitted from the light-emitting elements 300 in any direction of the light-emitting area LA, thereby improving visibility depending on the direction of the display device 10.

[0111] At the same time, despite Figure 2 Although not shown in FIG, multiple insulating layers are located in each sub-pixel PXn. The insulating layers may include a first insulating layer 510, a second insulating layer 520, and a passivation layer 550 (see FIG. Figure 4In other embodiments, the first insulating layer 510 includes regions corresponding to the first electrode branch 210B and the second electrode branch 220B to completely cover the sub-pixel PXn. The first insulating layer 510 can protect the electrodes 210 and 220 and can insulate the electrodes 210 and 220 from each other so that the electrodes 210 and 220 do not directly contact each other.

[0112] The second insulating layer 520 is positioned on the first insulating layer 510 , and at least a portion of the second insulating layer 520 is positioned to partially overlap each of the electrode branches 210B and 220B.

[0113] The display device 10 may include a Figure 2 The circuit element layer below the electrodes 210 and 220 shown in FIG. Figure 4 The structure of the display device 10 is described in detail.

[0114] Figure 4 It is along Figure 2 A cross-sectional view taken along line Q1-Q1'.

[0115] Figure 4 A cross-sectional view of the first subpixel PX1 is shown, but may be similarly applied to other pixels PX or subpixels PXn. Figure 4 A cross section across one end and the other end of any light emitting element 300 is shown.

[0116] refer to Figure 2 and Figure 4 , the display device 10 may include a substrate 110, a buffer layer 115, a light blocking layer BML, a first transistor 120, a plurality of electrodes 210 and 220 located on the first transistor 120, and a light emitting element 300. The first transistor 120 may include a first active material layer 126, a first gate electrode 121, a first drain electrode 123, and a first source electrode 124. The first transistor 120 may be a driving transistor that transmits an electrical signal to the first electrode 210 of the display device 10. However, the present disclosure is not limited thereto, and the display device 10 may include a greater number of transistors.

[0117] The substrate 110 may be an insulating substrate. The substrate 110 may be made of an insulating material such as glass, quartz, or polymer resin. The substrate 110 may be a rigid substrate, but may also be a flexible substrate that can be bent, folded, rolled, etc.

[0118] The light blocking layer BML may be positioned on the substrate 110. The light blocking layer BML may be electrically connected to a first drain electrode 123 of a first transistor 120 to be described later.

[0119] The light blocking layer BML is positioned to overlap the first active material layer 126 of the first transistor 120. The light blocking layer BML may include a material that blocks light, thereby reducing or preventing light from being incident on the first active material layer 126. For example, the light blocking layer BML may be formed of an opaque metal material that blocks transmission of light. Figure 4 The display device 10 may include a larger number of light blocking layers BML. Although the drawings show that only one first transistor 120 is disposed, the display device 10 may include a larger number of transistors. Therefore, the display device 10 may further include a light blocking layer BML that overlaps with an active material layer of another transistor.

[0120] The buffer layer 115 is located on the light blocking layer BML and the substrate 110. The buffer layer 115 can be positioned to completely cover both the substrate 110 and the light blocking layer BML. The buffer layer 115 can reduce or prevent the diffusion of impurity ions, reduce or prevent the penetration of moisture or external air, and perform a surface planarization function. The buffer layer 115 can insulate the light blocking layer BML and the first active material layer 126 from each other.

[0121] The semiconductor layer is located on the buffer layer 115. The semiconductor layer may include the first active material layer 126 of the first transistor 120. However, the present disclosure is not limited thereto, and the semiconductor layer may also include an active material layer of another transistor of the display device 10. The semiconductor layer may include polycrystalline silicon, single crystal silicon, or an oxide semiconductor.

[0122] The first gate insulating layer 170 is located on the semiconductor layer. The first gate insulating layer 170 may be located to completely cover both the buffer layer 115 and the semiconductor layer. The first gate insulating layer 170 may serve as a gate insulating film of the first transistor 120.

[0123] The first conductive layer is located on the first gate insulating layer 170. The first conductive layer may include a first gate electrode 121 located on the first active material layer 126 of the first transistor 120 on the first gate insulating layer 170.

[0124] The interlayer insulating layer 190 is located on the first conductive layer. The interlayer insulating layer 190 may serve as an interlayer insulating film. The interlayer insulating layer 190 may include an organic insulating material and may perform a surface planarization function.

[0125] The second conductive layer is located on the interlayer insulating layer 190. The second conductive layer includes the first drain electrode 123 and the first source electrode 124 of the first transistor 120.

[0126] The first drain electrode 123 and the first source electrode 124 may be electrically connected to the first active material layer 126 through respective contact holes penetrating the interlayer insulating layer 190 and the first gate insulating layer 170. The first drain electrode 123 may be electrically connected to the light blocking layer BML through another contact hole.

[0127] The via layer 200 is located on the second conductive layer. The via layer 200 may include an organic insulating material and may perform a surface planarization function.

[0128] A plurality of partition walls 400 and a plurality of electrodes 210 and 220 are located on the via layer 200. Some of the partition walls 400 may be located at a boundary of each sub-pixel PXn and spaced apart from each other.

[0129] The partition walls 400 may be spaced apart from each other in each sub-pixel PXn. The partition walls 400 may include first and second partition walls 410 and 420 positioned adjacent to the center of the sub-pixel PXn, and third partition walls 430 positioned in some areas of the sub-pixel PXn and at the boundary of the sub-pixel PXn.

[0130] The third partition wall 430 may be a partition defining the boundary of each sub-pixel PXn. The third partition wall 430 may be positioned to extend in the first direction DR1 and the second direction DR2 at the boundary of each sub-pixel PXn to form a grid pattern. The third partition wall 430 may be formed to define each sub-pixel PXn and reduce or prevent color mixing of light emitted from each sub-pixel PXn.

[0131] The third partition wall 430 may also be located in a non-luminous area NLA that is different from the luminous area LA of each sub-pixel PXn. That is, the third partition wall 430 may define the boundary of each sub-pixel PXn, and may define the luminous area LA and the non-luminous area NLA in each sub-pixel PXn. As will be described later, when manufacturing the display device 10, the light-emitting element 300 may be aligned on the electrode by spraying an organic material or solvent using inkjet printing. The third partition wall 430 may surround the first electrode extension 210E and the second electrode bent portion 220D located in each sub-pixel PXn, and may be used to reduce or prevent the organic material or solvent from invading the boundary of the luminous area LA. Therefore, the light-emitting element 300 may be aligned between the first electrode extension 210E and the second electrode bent portion 220D, and the luminous area LA may be formed.

[0132] Meanwhile, in some embodiments, when the display apparatus 10 further includes another component, the component may be located on the third partition wall 430 , so that the third partition wall 430 may be used to support the component.

[0133] The first partition wall 410 and the second partition wall 420 are spaced apart from each other on the through-hole layer 200 so as to face each other. The first partition wall 410 and the second partition wall 420 can function as reflective partition walls, reflecting light emitted from the light-emitting element 300 toward the upper portion of the display device 10. Each subpixel PXn may include a different number of first partition walls 410 and second partition walls 420. As shown in the figure, the first partition wall 410 may face the second partition wall 420, and the second partition walls 420 are positioned so as to be spaced apart from opposite sides of the first partition wall 410. As described above, since one first electrode extension 210E and two second electrode bends 220D are located in the light-emitting area LA of each subpixel PXn, one first partition wall 410 and two second partition walls 420 can be located in the corresponding areas. However, the present disclosure is not limited thereto, and a greater number of first partition walls 410 and a greater number of second partition walls 420 may be provided depending on the number of electrodes 210 and 220 located in each subpixel PXn.

[0134] A portion of the first electrode 210 (e.g., a portion of the first electrode extension portion 210E and a portion of the first electrode extension portion 210C) may be located on the first partition wall 410. A portion of the second electrode 220 (e.g., a portion of the second electrode bent portion 220D and a portion of the second electrode extension portion 220C) may be located on the second partition wall 420. Figure 4 The first electrode 210 and the second electrode 220 on the first partition wall 410 and the second partition wall 420 are respectively a first electrode extension portion 210E and a second electrode bending portion 220D.

[0135] An electrode contact hole CNTD may be formed in the first partition wall 410, the electrode contact hole CNTD penetrating the first partition wall 410 and the via layer 200 to expose a portion of the upper surface of the first drain electrode 123 of the first transistor 120. The electrode contact hole CNTD may be formed in a region overlapping with the first electrode extension 210E of the first partition wall 410, and some regions of the first partition wall 410 may be separated from each other by the electrode contact hole CNTD. The first electrode extension 210E may be electrically connected to the first transistor 120 of the circuit element layer through the electrode contact hole CNTD formed in the first partition wall 410.

[0136] The first partition wall 410, the second partition wall 420 and the third partition wall 430 can be formed with substantially the same process. The first partition wall 410, the second partition wall 420 and the third partition wall 430 can have a structure in which at least a portion thereof protrudes upward from the through-hole layer 200. The first partition wall 410, the second partition wall 420 and the third partition wall 430 can protrude upward based on the plane on which the light-emitting element 300 is located, and at least a portion of the protruding portion can have an inclination. The shape of the first partition wall 410, the second partition wall 420 and the third partition wall 430 having a protruding portion or a protruding structure is not particularly limited. These partition walls 410, 420 and 430 do not have to be formed to have the same steps. In an embodiment, the third partition wall 430 can be formed to have a height greater than the height of the first partition wall 410 and / or the second partition wall 420. In some embodiments, the first partition wall 410 and the second partition wall 420 can be omitted. The plurality of partition walls 400 may include polyimide (PI).

[0137] The electrodes 210 and 220 are located on the first partition wall 410 and the second partition wall 420. In some embodiments, some regions of the electrodes 210 and 220 (e.g., a portion of the first electrode rods 210S and the second electrode rods 220S and a portion of the first electrode extensions 210C and the second electrode extensions 220C) may be located on the third partition wall 430.

[0138] The first electrode 210 is positioned to cover the first partition wall 410, and the second electrode 220 is positioned to cover the second partition wall 420. The first electrode 210 on the first partition wall 410 may be a first electrode extension portion 210E and may be electrically connected to the first transistor 120 through the electrode contact hole CNTD. The second electrode 220 on the second partition wall 420 may be a second electrode bent portion 220D.

[0139] Each of the electrodes 210 and 220 can be formed into a layer as shown in the figure. In an embodiment, the electrodes 210 and 220 may include a conductive material with high reflectivity. The electrodes 210 and 220 can transmit the electrical signal transmitted from the circuit element layer to the light-emitting element 300, and can concurrently reflect the light emitted from the light-emitting element 300 through the first partition wall 410 and the second partition wall 420. In an embodiment, each of the electrodes 210 and 220 can be made of an alloy containing aluminum (Al), nickel (Ni) or lanthanum (La). However, the present disclosure is not limited thereto, and each of the electrodes 210 and 220 can be formed into multiple layers and can include materials such as silver (Ag), copper (Cu), indium tin oxide (ITO), indium zinc oxide (IZO) or indium tin zinc oxide (ITZO). For example, each of the electrodes 210 and 220 can be formed into a stacked structure having Ag / ITO / IZO.

[0140] The first insulating layer 510 is positioned to partially cover the first electrode 210 and the second electrode 220. The first insulating layer 510 may be positioned to cover most of the upper surfaces of the first electrode 210 and the second electrode 220, and may also expose a portion of the first electrode 210 and a portion of the second electrode 220. The first insulating layer 510 may be located in a region where the first electrode 210 and the second electrode 220 are spaced apart from each other, in a region between the first electrode 210 and the third partition wall 430, and in a region between the second electrode 220 and the third partition wall 430. The first insulating layer 510 located between the first electrode 210 and the second electrode 220 may extend in a plane in the second direction DR2 to have a linear shape or an island shape. A portion of the first insulating layer 510 located on the first electrode 210 may also be located in the electrode contact hole CNTD.

[0141] The first insulating layer 510 is positioned to partially expose the relatively flat upper surfaces of the first and second electrodes 210 and 220, and is positioned to overlap the inclined side surfaces of the first and second partition walls 410 and 420. The first insulating layer 510 forms a flat upper surface, allowing the light-emitting element 300 to be positioned on the first insulating layer 510, and the flat upper surface extends in a direction toward the first and second electrodes 210 and 220. The extended portion of the first insulating layer 510 terminates at the inclined side surfaces of the first and second electrodes 210 and 220. Therefore, the contact electrode 260 can contact the exposed first and second electrodes 210 and 220, and can smoothly contact the light-emitting element 300 on the flat upper surface of the first insulating layer 510.

[0142] The first insulating layer 510 can protect the first electrode 210 and the second electrode 220 and can insulate the first electrode 210 and the second electrode 220 from each other. In addition, the first insulating layer 510 can further reduce or prevent damage to the light emitting element 300 located on the first insulating layer 510 due to contact with other components. However, the shape and structure of the first insulating layer 510 are not limited thereto.

[0143] In some cases, the light-emitting element 300 may be located on the first insulating layer 510. At least one light-emitting element 300 may be located on the first insulating layer 510, which is located between corresponding electrode branches 210B and 220B. Both ends of the light-emitting element 300 may form surfaces substantially parallel to both ends of the underlying first insulating layer 510. The light-emitting element 300 may be positioned so that a portion of the light-emitting element 300 overlaps with the electrodes 210 and 220. The light-emitting element 300 may be located on each end of the first electrode extension 210E and the second electrode bend 220D facing each other, and may be electrically connected to each of the electrodes 210 and 220 via the contact electrode 260.

[0144] Meanwhile, the light emitting element 300 may be configured such that a plurality of layers are located in a direction horizontal to the through hole layer 200. The light emitting element 300 of the display device 10 according to the embodiment may include the above-mentioned conductive semiconductor and active layer, and these conductive semiconductor and active layer may be sequentially located in a direction horizontal to the through hole layer 200. The light emitting element 300 may be configured such that the first conductive semiconductor 310, the active layer 330, the second conductive semiconductor 320 and the conductive electrode layer 370 (for example, see Figure 5 ) may be sequentially positioned in a direction horizontal to the through-hole layer 200. However, the present disclosure is not limited thereto. The order in which the multiple layers of the light-emitting element 300 are arranged may be reversed, and in some cases, when the light-emitting element 300 has a different structure, the multiple layers may alternatively be arranged in a direction perpendicular to the through-hole layer 200.

[0145] The second insulating layer 520 may be partially located on the first insulating layer 510 and the light-emitting element 300. The second insulating layer 520 may be used to protect the light-emitting element 300 and to fix or hold the light-emitting element 300 during the manufacturing process of the display device 10. The second insulating layer 520 may be positioned to surround or partially surround the outer surface of the light-emitting element 300. That is, in some embodiments, some of the material of the second insulating layer 520 may be located between the lower surface of the light-emitting element 300 and the first insulating layer 510. In a plan view, the second insulating layer 520 may extend in the second direction DR2 between the first electrode branch 210B and the second electrode branch 220B and may have an island shape or a linear shape.

[0146] Furthermore, a portion of the second insulating layer 520 may be located in the electrode contact hole CNTD of the first partition wall 410 and may also be located on the first insulating layer 510. In an embodiment, the second insulating layer 520 may include an organic insulating layer and may reduce or minimize a step formed by the electrode contact hole CNTD of the first partition wall 410. As shown in the figure, the second insulating layer 520 located in the electrode contact hole CNTD may planarize the upper surfaces of the first insulating layer 510 and the first electrode 210 on the first partition wall 410.

[0147] The contact electrode 260 is located on each of the electrodes 210 and 220, the first insulating layer 510, and the second insulating layer 520. The first contact electrode 261 and the second contact electrode 262 are spaced apart from each other on the second insulating layer 520 covering the light emitting element 300. Therefore, the second insulating layer 520 can insulate the first contact electrode 261 and the second contact electrode 262 from each other.

[0148] The first contact electrode 261 may contact at least the first insulating layer 510, the first electrode 210 exposed by patterning the first insulating layer 510, and one end of the light-emitting element 300. The second contact electrode 262 may contact at least the second electrode 220 exposed by patterning the first insulating layer 510, and the other end of the light-emitting element 300. The first contact electrode 261 and the second contact electrode 262 may contact respective side surfaces of the light-emitting element 300, for example, the first conductive semiconductor 310, the second conductive semiconductor 320, or the conductive electrode layer 370. As described above, the first insulating layer 510 may have a flat upper surface, so that the contact electrode 260 can smoothly contact the side surfaces of the light-emitting element 300 located on the flat upper surface of the first insulating layer 510.

[0149] The contact electrode 260 may include a conductive material. For example, the contact electrode 260 may include ITO, IZO, ITZO, or aluminum (Al). However, the material of the contact electrode 260 is not limited thereto.

[0150] The passivation layer 550 is located on the partition wall 400, the first insulating layer 510, the second insulating layer 520, and the contact electrode 260. The passivation layer 550 may serve to protect components located on the via layer 200 from external environments.

[0151] Each of the first insulating layer 510, the second insulating layer 520, and the passivation layer 550 may include an inorganic insulating material or an organic insulating material. In an embodiment, each of the first insulating layer 510, the second insulating layer 520, and the passivation layer 550 may include an inorganic insulating material such as silicon oxide (SiO x ), silicon nitride (SiN x ), silicon oxynitride (SiOx N y ), aluminum oxide (Al2O3) or aluminum nitride (AlN). In addition, each of the first insulating layer 510, the second insulating layer 520 and the passivation layer 550 may include an organic insulating material such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, polyimide resin, unsaturated polyester resin, polyphenylene resin, polyphenylene sulfide resin, benzocyclobutene, cardol resin, siloxane resin, silsesquioxane resin, polymethyl methacrylate, polycarbonate or polymethyl methacrylate-polycarbonate synthetic resin. However, the material of each of the first insulating layer 510, the second insulating layer 520 and the passivation layer 550 is not limited thereto.

[0152] Figure 5 is a schematic diagram of a light-emitting element according to an embodiment.

[0153] The light-emitting element 300 may be a light-emitting diode. For example, the light-emitting element 300 may be an inorganic light-emitting diode having a size of about micrometers or nanometers and may be made of an inorganic material. When an electric field is formed between two electrodes facing each other (e.g., facing each other in a predetermined direction), the organic light-emitting diode may be aligned between the two electrodes having polarity. The light-emitting element 300 may be aligned between the two electrodes according to the electric field formed on the two electrodes.

[0154] The light emitting element 300 may have a shape extending in one direction. The light emitting element 300 may have a shape of a nanorod, a nanowire, a nanotube, or the like. In an embodiment, the light emitting element 300 may have a cylindrical shape or a rod-like shape. However, the shape of the light emitting element 300 is not limited thereto, and the light emitting element 300 may have various shapes, such as a cube, a rectangular parallelepiped, and a hexagonal prism. The plurality of semiconductors included in the light emitting element 300, which will be described later, may be sequentially arranged or stacked in one direction.

[0155] The light emitting element 300 may include a semiconductor crystal doped with impurities of any conductivity type (eg, p-type or n-type). The semiconductor crystal may receive an electrical signal applied from an external power source and may emit the electrical signal as light of a given wavelength band.

[0156] The light emitting element 300 according to the embodiment can emit light of a given wavelength band. In an embodiment, the active layer 330 can emit blue light having a central wavelength band of about 450nm to about 495nm. However, the central wavelength band of blue light is not limited to the above range and should be understood to include all wavelength ranges that can be considered blue in the art. In addition, the light emitted from the active layer 330 of the light emitting element 300 is not limited thereto and can also be green light having a central wavelength band of about 495nm to about 570nm, or can be red light having a central wavelength band of about 620nm to about 750nm.

[0157] Meanwhile, the light emitting element 300 according to the embodiment may include a first conductive semiconductor 310, a second conductive semiconductor 320, an active layer 330, and an insulating film 380. The light emitting element 300 according to the embodiment may further include at least one conductive electrode layer 370. Figure 5 3. The light emitting element 300 is shown to further include one conductive electrode layer 370, but the present disclosure is not limited thereto. In some cases, the light emitting element 300 may include a larger number of conductive electrode layers 370, or the conductive electrode layer 370 may be omitted. Even if the number of conductive electrode layers 370 is different, or even if the light emitting element 300 includes other structures, the description of the light emitting element 300 to be described later can be equally applied.

[0158] refer to Figure 5 The first conductive semiconductor 310 may be, for example, an n-type semiconductor having a first conductivity type. For example, when the light emitting element 300 emits light in a blue wavelength band, the first conductive semiconductor 310 may include a semiconductor having a chemical formula of Al x Ga y In 1-x-y N (0≤x≤1, 0≤y≤1, 0≤x+y≤1) semiconductor material. For example, the semiconductor material may be at least one of AlGaInN, GaN, AlGaN, InGaN, AlN, and InN, each doped with an n-type impurity. The first conductive semiconductor 310 may be doped with a first conductive dopant. The first conductive dopant may be, for example, Si, Ge, or Sn. In an embodiment, the first conductive semiconductor 310 may be n-GaN doped with n-type Si. The length of the first conductive semiconductor 310 may have a range of about 1.5 μm to about 5 μm, but is not limited thereto.

[0159] The second conductive semiconductor 320 is located on the active layer 330 to be described later. The second conductive semiconductor 320 may be, for example, a p-type semiconductor having a second conductivity type. For example, when the light emitting element 300 emits light in a blue wavelength band or a green wavelength band, the second conductive semiconductor 320 may include a semiconductor having a chemical formula of Al x Ga y In1-x-y N (0≤x≤1, 0≤y≤1, 0≤x+y≤1). For example, the semiconductor material may be at least one of AlGaInN, GaN, AlGaN, InGaN, AlN, and InN, each doped with a p-type impurity. The second conductive semiconductor 320 may be doped with a second conductive dopant. The second conductive dopant may be, for example, Mg, Zn, Ca, Se, or Ba. In an embodiment, the second conductive semiconductor 320 may be p-GaN doped with p-type Mg. The length of the second conductive semiconductor 320 may range from about 0.08 μm to about 0.25 μm, but is not limited thereto.

[0160] At the same time, despite Figure 5 , each of the first conductive semiconductor 310 and the second conductive semiconductor 320 is shown as being formed as one layer, but the present disclosure is not limited thereto. In some cases, each of the first conductive semiconductor 310 and the second conductive semiconductor 320 may further include a greater number of layers, such as a cap layer or a tensile strain barrier reduction (TSBR) layer.

[0161] The active layer 330 is located between the first conductive semiconductor 310 and the second conductive semiconductor 320. The active layer 330 may include a material having a single quantum well structure or a multi-quantum well structure. When the active layer 330 includes a material having a multi-quantum well structure, the active layer 330 may have a structure in which quantum layers and well layers are alternately stacked. The active layer 330 may emit light by recombination of electron-hole pairs in response to an electrical signal applied through the first conductive semiconductor 310 and the second conductive semiconductor 320. For example, when the active layer 330 emits light in a blue wavelength band, the active layer 330 may include a material such as AlGaN or AlGaInN. For example, when the active layer 330 has a multi-quantum well structure in which quantum layers and well layers are alternately stacked, the quantum layers may include a material such as AlGaN or AlGaInN, and the well layers may include a material such as GaN or AlInN. In an embodiment, the active layer 330 includes quantum layers each including AlGaInN and well layers each including AlInN, and thus the active layer 330 may emit blue light having a center wavelength band of about 450 nm to about 495 nm as described above.

[0162] However, the present disclosure is not limited thereto, and the active layer 330 may have a structure in which semiconductor materials having high band gap energy and semiconductor materials having low band gap energy are alternately stacked, and may include other Group 3 to Group 5 semiconductor materials depending on the wavelength band of light. Light emitted from the active layer 330 is not limited to light in the blue wavelength band, and in some cases, the active layer 330 may emit light in the red wavelength band or the green wavelength band. The length of the active layer 330 may range from about 0.05 μm to about 0.25 μm, but is not limited thereto.

[0163] Meanwhile, light emitted from the active layer 330 may be emitted to both side surfaces of the light emitting element 300, as well as to longitudinal outer surfaces of the light emitting element 300. The direction of light emitted from the active layer 330 is not limited to one direction.

[0164] The conductive electrode layer 370 may be an ohmic contact electrode. However, the present disclosure is not limited thereto, and the conductive electrode layer 370 may be a Schottky contact electrode. For example, the conductive electrode layer 370 may include at least one of aluminum (Al), titanium (Ti), indium (In), gold (Au), silver (Ag), indium tin oxide (ITO), indium zinc oxide (IZO), and indium tin zinc oxide (ITZO). The conductive electrode layer 370 may include a semiconductor material doped with n-type impurities or p-type impurities. The conductive electrode layer 370 may include the same material, or may include different materials from each other, but the present disclosure is not limited thereto.

[0165] The insulating film 380 is positioned to surround the outer surfaces of the plurality of semiconductors described above. In an embodiment, the insulating film 380 may be positioned to surround at least the outer surface of the active layer 330 and may extend in a direction in which the light-emitting element 300 extends. The insulating film 380 may be used to protect the aforementioned components. For example, the insulating film 380 may be formed to surround the side surfaces of the components (e.g., the first conductive semiconductor 310, the active layer 330, the second conductive semiconductor 320, and / or the conductive electrode layer 370) and may be formed so that both ends of the light-emitting element 300 in the length direction are exposed through the insulating film 380.

[0166] Despite Figure 5 3 shows that the insulating film 380 can extend in the longitudinal direction of the light emitting element 300 to cover the first conductive semiconductor 310 to the conductive electrode layer 370, but the present disclosure is not limited thereto. The insulating film 380 can cover only a portion of the outer surface of the conductive semiconductor and the active layer 330, or can cover only a portion of the outer surface of the conductive electrode layer 370 to expose a portion of the outer surface of the conductive electrode layer 370.

[0167] The thickness of the insulating film 380 may be in the range of about 10 nm to about 1.0 μm, but is not limited thereto. For example, the thickness of the insulating film 380 may be 40 nm.

[0168] The insulating film 380 may include a material having insulating properties, for example, silicon oxide (SiO x ), silicon nitride (SiN x ), silicon oxynitride (SiO x N y), aluminum nitride (AlN), or aluminum oxide (Al2O3). Therefore, the insulating film 380 can reduce or prevent short circuits that may otherwise occur when the active layer 330 is in direct contact with an electrode (through which an electrical signal is transmitted to the light-emitting element 300). In addition, because the insulating film 380 protects the outer surface of the light-emitting element 300 including the active layer 330, degradation of the luminous efficiency can be reduced or prevented.

[0169] In some embodiments, the outer surface of the insulating film 380 may be surface treated. When manufacturing the display device 10, the light-emitting elements 300 may be aligned by spraying the light-emitting elements 300 onto the electrodes while the light-emitting elements 300 are dispersed in ink (e.g., a predetermined ink). Here, the surface of the insulating film 380 may be hydrophobic or hydrophilic treated to keep the light-emitting elements 300 dispersed and not aggregate with other adjacent light-emitting elements 300 in the ink.

[0170] Meanwhile, the length h of the light-emitting element 300 may be in the range of about 1 μm to about 10 μm, or in the range of about 2 μm to about 6 μm, or even in the range of about 4 μm to about 5 μm. The diameter of the light-emitting element 300 may be in the range of about 300 nm to about 700 nm, and the aspect ratio of the light-emitting element 300 may be in the range of about 1.2 to about 100. However, the present disclosure is not limited thereto, and the plurality of light-emitting elements 300 included in the display device 10 may have different diameters depending on the composition difference of the active layer 330. For example, the diameter of the light-emitting element 300 may be about 500 nm.

[0171] Figures 6 to 15 is a schematic diagram illustrating a process of manufacturing a display device according to an embodiment.

[0172] First, refer to Figure 6 and Figure 7 , a plurality of partition walls 400 are formed on the through-hole layer 200 . Figure 7 It is along Figure 6 , a cross-sectional view taken along line Q2-Q2'. The plurality of partition walls 400 may include a first partition wall 410, a second partition wall 420, and a third partition wall 430, and the third partition wall 430 may be positioned to surround the emission area LA of each sub-pixel PXn. That is, the third partition wall 430 may be substantially located in the non-emission area NLA. The third partition wall 430 may also be located at the boundary of each sub-pixel PXn.

[0173] The first and second partition walls 410 and 420 are respectively formed to overlap with certain areas of the first electrode extension 210E and the second electrode bend 220D in the light-emitting area LA of each subpixel PXn, and overlap with certain areas of the first and second electrode extensions 210C and 220C in the light-emitting area LA of each subpixel PXn. As described above, the first and second partition walls 410 and 420 are formed to have the same shape as certain corresponding areas of the first and second electrode extensions 210E and 220D, as well as certain corresponding areas of the first and second electrode extensions 210C and 220C. For example, because the second subpixel PX2 includes two light-emitting areas LA, the second subpixel PX2 may be provided with a greater number of first and second partition walls 410 and 420 than each of the first and third subpixels PX1 and PX3. The first and second partition walls 410 and 420 of the second subpixel PX2 may be spaced apart from each other between the light-emitting areas LA. Because the detailed description of this structure is the same as that described above, its description will be omitted.

[0174] Meanwhile, as described above, the third partition wall 430 may be completely disposed over the plurality of sub-pixels PXn and may include opening areas OA1, OA2, and OA3 that expose the emission areas LA of the sub-pixels PXn. For example, the third partition wall 430 may include a first opening area OA1 that exposes the emission area LA of the first sub-pixel PX1, a second opening area OA2 that exposes the emission area LA of the second sub-pixel PX2, and a third opening area OA3 that exposes the emission area LA of the third sub-pixel PX3. Each of the opening areas OA1, OA2, and OA3 is a portion of the sub-pixel PXn in which the light-emitting element 300 is disposed, and may be disposed to correspond to the first electrode extension 210E. Furthermore, as described above, the third partition wall 430 may be formed to have a greater height than each of the first partition wall 410 and the second partition wall 420.

[0175] Although only the first, second, and third subpixels PX1, PX2, and PX3 are shown in the drawings, other subpixels PXn may be provided in other embodiments. Hereinafter, the first, second, and third subpixels PX1, PX2, and PX3 will be described as examples.

[0176] Next, refer to Figure 8 and Figure 9 , Figure 9 It is along Figure 84. A cross-sectional view taken along line Q3-Q3' of FIG. 4 shows a first electrode 210 and a second electrode 220 formed on a plurality of partition walls 400. The first electrode 210 includes a first electrode rod 210S and a first electrode branch 210B. For example, the first electrode branch 210B includes a first electrode extension 210E and a first electrode extension 210C. A portion of the first electrode extension 210E and the first electrode extension 210C may be located on the first partition wall 410, and another portion of the first electrode rod 210S and the first electrode extension 210C may be located on the third partition wall 430.

[0177] The second electrode 220 includes a second electrode rod 220S and a second electrode branch 220B. For example, the second electrode branch 220B includes a second electrode bent portion 220D and a second electrode extension portion 220C. A portion of the second electrode bent portion 220D and the second electrode extension portion 220C may be located on the second partition wall 420, and another portion of the second electrode rod 220S and the second electrode extension portion 220C may be located on the third partition wall 430.

[0178] Alternatively, in an embodiment in which the electrodes 210 and 220 are formed prior to the third partition wall 430 , the other portion of the second electrode extension 220C and the second electrode rods 220S may be disposed below the third partition wall 430 .

[0179] In an embodiment, each of the opening areas OA1, OA2, and OA3 of the third partition wall 430 may have a structure corresponding to the shape of each of the electrodes 210 and 220 disposed in each subpixel PXn in a plan view. For example, the first opening area OA1 may include a first opening portion P1 in which the first electrode extension portion 210C is disposed, a second opening portion P2 in which the first electrode extension portion 210E is disposed and whose width in one direction is greater than the width of the first opening portion P1 in one direction, and a third opening portion P3 connecting the first opening portion P1 and the second opening portion P2 and having a narrower width. As described above, the first electrode 210 may include the first electrode extension portion 210E and the first electrode extension portion 210C, and may have a shape in which the width is partially increased. The first electrode extension portions 210C are disposed on both sides of the first electrode extension portion 210E in the second direction DR2, and the width of the region where the electrodes 210 and 220 are disposed may be relatively narrow in the portion where the first electrode extension portion 210C is disposed. Each of the open areas OA1 , OA2 , and OA3 of the third partition wall 430 may include a portion whose width is changed according to the shape of the first electrode 210 .

[0180] A portion of the second electrode extension 220C and the second electrode bend 220D may be configured to correspond to the shape of the first electrode extension 210E and may be disposed in the opening areas OA1, OA2, and OA3 of the third partition wall 430. For example, in the second electrode extension 220C, a portion spaced apart from the first electrode extension 210E and a portion extending to the first electrode extension 210C may be partially disposed in the opening areas OA1, OA2, and OA3, and the second electrode bend 220D may be disposed in the opening areas OA1, OA2, and OA3. In a cross-sectional view, at least a portion of the second electrode extension 220C and at least a portion of the second electrode bend 220D may be disposed between the first electrode 210 and the third partition wall 430.

[0181] As described above, each subpixel PXn can have a different electrode structure or emission area LA. For example, the first subpixel PX1 can be provided with one first electrode extension 210E to form one emission area LA, and the second subpixel PX2 can be provided with multiple first electrode extensions 210E or two first electrode extensions 210E to form two emission areas LA. Therefore, the shape and arrangement of the opening areas OA1, OA2, and OA3 of the third partition wall 430 can also be changed.

[0182] In an embodiment, the third partition wall 430 may include a first opening area OA1 exposing the light emitting area LA of the first subpixel PX1, a second opening area OA2 exposing the light emitting area LA of the second subpixel PX2, and a third opening area OA3 exposing the light emitting area LA of the third subpixel PX3. The first opening area OA1 and the third opening area OA3 may include one second opening portion P2, and the second opening area OA2 may include a plurality of second opening portions P2 spaced apart from each other in the second direction DR2. In the second opening area OA2, the plurality of second opening portions P2 may be connected to the first opening portion P1. The opening areas OA1, OA2, and OA3 of the third partition wall 430 may have a structure corresponding to the shape of the light emitting area LA in which the light emitting element 300 is disposed or the shape of the electrodes 210 and 220. The structures of the opening areas OA1, OA2, and OA3 disposed in the corresponding subpixels PXn may be different from each other.

[0183] In addition, in the display device 10, sub-pixels each provided with one first electrode extension portion 210E (for example, the first sub-pixel PX1 and the third sub-pixel PX3) and sub-pixels each provided with two first electrode extension portions 210E (for example, the second sub-pixel PX2) are alternately arranged, so that in the opening areas OA1, OA2 and OA3 of the third partition wall 430, the first opening area OA1 and the third opening area OA3 and the second opening area OA2 can also be alternately arranged along the first direction DR1.

[0184] Meanwhile, the third partition wall 430 may also be disposed between adjacent sub-pixels PXn. A portion of the third partition wall 430 (the portion disposed between the sub-pixels PXn) may also have a structure corresponding to the shape of each of the electrodes 210 and 220. In an embodiment, the third partition wall 430 may be disposed between adjacent sub-pixels PXn and may include a partition wall extension portion BE extending in the second direction DR2 corresponding to the first electrode surface of the first electrode extension portion 210E, and a partition wall bent portion BB extending in the third direction DR3 or the fourth direction DR4 corresponding to the second electrode surface of the first electrode extension portion 210E. Since the partition wall extension portion BE and the partition wall bent portion BB have structures corresponding to the shapes of the electrodes 210 and 220, the positions of the partition wall extension portion BE and the partition wall bent portion BB may vary depending on the width of each of the opening areas OA1, OA2, and OA3.

[0185] In an exemplary embodiment, the partition wall extension portion BE may be provided to correspond to the second opening portion P2 of the opening areas OA1, OA2, and OA3, and the partition wall bent portion BB may be provided to correspond to the third opening portion P3 of the opening areas OA1, OA2, and OA3. The first opening portion P1, second opening portion P2, and third opening portion P3 of the third partition wall 430 may have different widths. Since the widths of the first opening portion P1 and the second opening portion P2 are constant, the partition wall extension portion BE may be provided in the corresponding portions. Since the third opening portion P3 connects the first opening portion P1 and the second opening portion P2 and has a narrower width, the partition wall bent portion BB may be provided in the corresponding portion. For example, in the third partition wall 430 disposed between the first subpixel PX1 and the second subpixel PX2, the partition wall extension portion BE and the partition wall bent portion BB are disposed to correspond to the first electrode extension portion 210E disposed in the first subpixel PX1, and the partition wall extension portion BE and the partition wall bent portion BB may be disposed between the second opening portion P2 and the third opening portion P3 of the first opening area OA1 and the first opening portion P1 connecting the second opening portion P2 of the second opening area OA2. The partition wall extension portion BE and the partition wall bent portion BB may be disposed to separate the region between the emission area LA of the first subpixel PX1 and the third subpixel PX3, in which one first electrode extension portion 210E is disposed, and the emission area LA of the second subpixel PX2, in which two first electrode extension portions 210E are disposed. As shown in the figure, the third partition wall 430 can be disposed above the plurality of sub-pixels PXn and can include opening areas OA1, OA2, and OA3 so as to expose the emission area LA of each of the sub-pixels PXn, and the third partition wall 430 can separate the emission area LA of each of the sub-pixels PXn.

[0186] In the process of manufacturing the display device 10, the first electrode 210 and the second electrode 220 may be initially formed integrally without separating the respective sub-pixels PXn or the electrode rods and branches from each other, and then the first electrode 210 and the second electrode 220 may be disconnected in a subsequent process. Figure 8 As shown in FIG, the first electrode 210 and the second electrode 220 may each form one electrode line without being separated from each other.

[0187] Next, a first insulating material layer 511 is formed covering the first electrode 210 and the second electrode 220. The first insulating material layer 511 may be located on the through-hole layer 200 to completely cover the above components. The first insulating material layer 511 may be patterned in a subsequent process to be described later to form Figure 3 The first insulating layer 510 is formed.

[0188] Next, the light emitting element 300 is disposed in the light emitting area LA of each sub-pixel PXn or on the first electrode extension portion 210E and the second electrode bent portion 220D.

[0189] In the method of aligning the light emitting element 300, the solution S (see Figure 11 ) is sprayed onto the electrodes 210 and 220, and an alignment power source may be applied to each of the electrodes 210 and 220 to align the light emitting element 300. The alignment power source may form an electric field between the electrodes 210 and 220 to apply a dielectrophoretic force to the light emitting element 300. The light emitting element 300 may be aligned between the electrodes 210 and 220 in the solution S by the dielectrophoretic force.

[0190] refer to Figure 10 and Figure 11 , Figure 11 It is along Figure 10 , and a solution S in which the light-emitting elements 300 are dispersed is sprayed onto the first insulating material layer 511. The method of spraying the solution S can be performed using various processes (such as inkjet printing, inkjet injection, slit dye coating, and slit dye printing), but the present disclosure is not limited thereto. Due to the first partition wall 410, the second partition wall 420, and the third partition wall 430, a step of the first insulating material layer 511 can be formed. For example, because the third partition wall 430 is formed to have a large height, the light-emitting element 300 sprayed onto the first insulating material layer 511 can be sprayed in the light-emitting area LA surrounded by the third partition wall 430.

[0191] Next, refer to Figure 12 and Figure 13 , Figure 13 It is along Figure 12 , and the first electrode 210 and the second electrode 220 apply an alignment signal to form an electric field E between the first electrode 210 and the second electrode 220. One end of the light-emitting element 300 can have a first polarity, and the other end of the light-emitting element 300 can have a second polarity different from the first polarity. When the light-emitting element 300, each having two ends with different polarities, is placed in the electric field E, the alignment direction of the light-emitting element 300 can be controlled by electric forces (attractive and repulsive forces).

[0192] When the electric field E is formed in the solution S sprayed on the first electrode 210 and the second electrode 220, the light emitting element 300 may receive power by the electric field E, and the light emitting element 300 may be arranged between the first electrode 210 and the second electrode 220 due to the power. Figure 13As shown in FIG, the light emitting element 300 is located on the first insulating material layer 511 between the first electrode 210 and the second electrode 220 .

[0193] Here, the ends of the light-emitting element 300 are respectively located on the first electrode 210 and the second electrode 220. That is, one end of the light-emitting element 300 can be located on the first electrode extension portion 210E, and the other end of the light-emitting element 300 can be located on the second electrode bent portion 220D. As described above, the first electrode extension portion 210E and the second electrode bent portion 220D may include a plurality of electrode surfaces ES extending in different directions, and the light-emitting element 300 can be aligned in the direction where each corresponding domain DM is located.

[0194] Next, refer to Figure 14 , patterning at least a portion of the first insulating material layer 511 to form a first insulating layer 510, and forming a second insulating layer 520 and a contact electrode 260 on the first insulating layer 510. The description of these structures is the same as the above-mentioned structures. Finally, referring to Figure 15 , a portion of the first electrode 210 is cut along the cutting portion CB to produce Figure 1 display device 10.

[0195] Hereinafter, other embodiments of the display device 10 will be described.

[0196] and Figure 1 The display device 10 may include a greater number of electrodes. The third electrode and the fourth electrode may be located between the first electrode 210 and the second electrode 220, and the third electrode and the fourth electrode may be alternately arranged relative to the center of the first electrode extension 210E. The third electrode and the fourth electrode may be substantially similar to any one of the first electrode branch 210B and the second electrode branch 220B. That is, the display device 10 may also actually include Figure 1 The display device 10 may include another first electrode branch 210B spaced apart from and facing the inner side of the second electrode branch 220B, and may include another second electrode branch 220B spaced apart from the another first electrode branch 210B.

[0197] Figure 16 is a plan view of a display device according to another embodiment, and Figure 17 yes Figure 16 An enlarged view of part B.

[0198] refer to Figure 16 and Figure 17According to another embodiment, the display device 10_1 may further include a third electrode 230_1 and a fourth electrode 240_1 located between the first electrode branch 210B_1 and the second electrode branch 220B_1. In addition to the display device 10_1 of this embodiment including two third electrodes 230_1 and two fourth electrodes 240_1, Figure 16 The display device 10_1 and Figure 1 The display device 10 is the same as that of the display device 10. Hereinafter, redundant descriptions will be omitted, and the third electrode 230_1 and the fourth electrode 240_1 will be described in detail.

[0199] The display device 10_1 according to another embodiment may further include a third electrode 230_1 between the first electrode extension portion 210E_1 and the second electrode bent portion 220D_1, and may further include a fourth electrode 240_1 between the third electrode 230_1 and the first electrode 210_1.

[0200] The third electrode 230_1 may include a third electrode extension portion 230C_1 extending in the second direction DR2, and a plurality of third electrode segments 230F_1 that are bent according to the shape of the second electrode bent portion 220D_1 and spaced apart from each other in the second direction DR2. The third electrode 230_1 may have substantially the same shape as the second electrode branch 220B_1, and a region corresponding to the second electrode bent portion 220D_1 may be cut to form a plurality of third electrode segments 230F_1. Although the drawings illustrate the formation of four third electrode segments 230F_1, the present disclosure is not limited thereto.

[0201] The third electrode 230_1 may be substantially similar to any of the first electrode branches 210B_1. In an embodiment, the first electrode 210_1 may include a plurality of first electrode branches 210B_1, any of which may include a first electrode extension 210E_1 and a first electrode extension 210C_1, and the other electrode branches in the first electrode branches 210B_1 may form a third electrode extension 230C_1 and a third electrode segment 230F_1. That is, during the manufacturing process of the display device 10_1, similar to the first electrode branches 210B_1, the third electrode 230_1 may branch from the first electrode bar 210S_1, may be broken along the cutting portion CB_1, and may then be further broken at corresponding portions to form a plurality of third electrode segments 230F_1.

[0202] The third electrode extension portion 230C_1 may be spaced apart from the second electrode extension portion 220C_1 and may face the second electrode extension portion 220C_1. The third electrode extension portion 230C_1 may also extend in the second direction DR2 and may be located in the non-emission area NLA_1. The third electrode fragment 230F_1 may be spaced apart from the second electrode bent portion 220D_1 and may face the second electrode bent portion 220D_1. In some embodiments, the third electrode fragment 230F_1 may include an electrode surface ES (see FIG. 1 ) that is opposite to the second electrode bent portion 220D_1. Figure 1 ) is spaced apart from and faces the electrode surface ES of the second electrode bent portion 220D_1. The third electrode fragment 230F_1 may have substantially the same shape as the second electrode bent portion 220D_1, and some regions of the third electrode fragment 230F_1 may be disconnected to be spaced apart from each other.

[0203] The fourth electrode 240_1 may include a fourth electrode extension portion 240C_1 extending in the second direction DR2, and a plurality of fourth electrode segments 240F_1 that are bent according to the shape of the first electrode extension portion 210E_1 and spaced apart from each other in the second direction DR2. The fourth electrode 240_1 may have substantially the same shape as the second electrode branch 220B_1, and the region corresponding to the second electrode bent portion 220D_1 may be cut to form a plurality of fourth electrode segments 240F_1. Although the figures illustrate four fourth electrode segments 240F_1, the present disclosure is not limited thereto. For example, the fourth electrode 240_1 may have the same shape as the third electrode 230_1 and may be located between the third electrode 230_1 and the first electrode branch 210B_1.

[0204] The fourth electrode 240_1 may be substantially similar to any of the second electrode branches 220B_1. In an embodiment, the second electrode 220_1 may include a plurality of second electrode branches 220B_1, two of which may include a second electrode bent portion 220D_1 and a second electrode extension portion 220C_1, and the remaining second electrode branches 220B_1 may form a fourth electrode extension portion 240C_1 and a fourth electrode segment 240F_1. That is, during the manufacturing process of the display device 10_1, similar to the second electrode branches 220B_1, the fourth electrode 240_1 may branch from the second electrode bar 220S_1, may be broken along the cutting portion CB_1, and may subsequently be further broken to form four fourth electrode segments 240F_1.

[0205] The fourth electrode extension 240C_1 may be spaced apart from the first electrode extension 210C_1 and may face the first electrode extension 210C_1. The fourth electrode extension 240C_1 may also extend in the second direction DR2 and may be located in the non-emission area NLA_1. The fourth electrode fragment 240F_1 may be spaced apart from the first electrode extension 210E_1 and may face the first electrode extension 210E_1. In some embodiments, the fourth electrode fragment 240F_1 may include an electrode surface spaced apart from and facing the electrode surface ES of the first electrode extension 210E_1.

[0206] That is, the third electrode 230_1 and the fourth electrode 240_1 may be floating electrodes in which branches branched from the first electrode bar 210S_1 and the second electrode bar 220S_1 are disconnected along the cutting portion CB_1.

[0207] The display device 10_1 according to the embodiment may include a plurality of light emitting elements 300_1 located between the first electrode extension 210E_1 and the fourth electrode segment 240F_1, between the fourth electrode segment 240F_1 and the third electrode segment 230F_1, and between the third electrode segment 230F_1 and the second electrode bent portion 220D_1. The display device 10_1 may also include a third contact electrode 263_1 and a fourth contact electrode 264_1 located on the third electrode segment 230F_1 and the fourth electrode segment 240F_1.

[0208] For example, Figure 17 As shown in the figure, the first light-emitting element 301_1 and the second light-emitting element 302_1 can be located between the first electrode extension portion 210E_1 and the fourth electrode fragment 240F_1, the third light-emitting element 303_1 and the fourth light-emitting element 304_1 can be located between the fourth electrode fragment 240F_1 and the third electrode fragment 230F_1, and the fifth light-emitting element 305_1 and the sixth light-emitting element 306_1 can be located between the third electrode fragment 230F_1 and the second electrode bent portion 220D_1.

[0209] In the display device 10_1, the area where the light emitting elements 300_1 are located (ie, the area between the electrodes 210_1, 220_1, 230_1, and 240_1) increases, thereby increasing the number of light emitting elements 300_1 per unit area.

[0210] Meanwhile, the first light emitting element 301_1, the third light emitting element 303_1, and the fifth light emitting element 305_1 may have their long axes oriented toward the third direction DR3, and the second light emitting element 302_1, the fourth light emitting element 304_1, and the sixth light emitting element 306_1 may have their long axes oriented toward the first direction DR1. That is, as described above, the display device 10_1 may include a domain DM for each light emitting area LA_1 (see Figure 3 ) The light emitting elements 300_1 have different alignment directions, and thus the visibility of the display device 10_1 can be improved.

[0211] Furthermore, because the third electrode segment 230F_1 and the fourth electrode segment 240F_1 are spaced apart from each other, one contact electrode 263_1 or 264_1 may be positioned for each of the electrode segments 230F_1 and 240F_1 .

[0212] For example, the plurality of third electrode segments 230F_1 and the plurality of fourth electrode segments 240F_1 are spaced apart from each other, and the plurality of third contact electrodes 263_1 may be in contact with one end of the third light-emitting element 303_1 or the fourth light-emitting element 304_1 and the third electrode segment 230F_1. The plurality of fourth contact electrodes 264_1 may be in contact with the other end of the third light-emitting element 303_1 or the fourth light-emitting element 304_1 and the fourth electrode segment 240F_1. Here, the plurality of third contact electrodes 263_1 and the plurality of fourth contact electrodes 264_1 may be spaced apart from each other in one direction (e.g., the second direction DR2).

[0213] In this case, the third light emitting element 303_1 and the fourth light emitting element 304_1 of the display device 10_1 may be electrically connected to each other in parallel, and the third light emitting element 303_1 may be electrically connected to the first light emitting element 301_1 and the fifth light emitting element 305_1 in series. Figure 1 The display device 10 is different. Figure 16 In the display device 10_1, multiple light-emitting elements 300_1 are connected in series or in parallel, thereby further improving the light-emitting efficiency per unit area. The contact electrodes 261_1 and 262_1, the partition walls 410_1 and 420_1, and the non-light-emitting area NLA_1 are substantially the same as the contact electrodes 261 and 262, the partition walls 410 and 420, and the non-light-emitting area NLA described above, and thus their description will be omitted.

[0214] According to an embodiment, since the light emitting elements may have different alignment directions in the light emitting region of the display device, the display device may improve visibility in each direction.

[0215] Furthermore, since the display device further includes a plurality of floating electrodes between the first electrode and the second electrode, the light emitting elements between the floating electrodes are connected to each other in series, thereby improving light emitting efficiency per unit area.

[0216] At the end of the detailed description, it will be appreciated by those skilled in the art that many changes and modifications may be made to the disclosed embodiments without departing substantially from the principles of the present disclosure. Therefore, the disclosed embodiments of the present invention are used in a general and descriptive sense only and not for the purpose of limitation.

Claims

1. Display devices, including: a first electrode including a first electrode surface and a second electrode surface, the first electrode surface extending in a first direction, the second electrode surface connected to one end of the first electrode surface and extending in a second direction forming an oblique angle with the first direction; a second electrode including a third electrode surface and a fourth electrode surface, the third electrode surface extending in the first direction, spaced apart from and facing the first electrode surface, the fourth electrode surface connected to one end of the third electrode surface and extending in the second direction, spaced apart from and facing the second electrode surface; as well as At least one light emitting element is between the first electrode and the second electrode and includes a first light emitting element between the first electrode surface and the third electrode surface and a second light emitting element between the second electrode surface and the fourth electrode surface.

2. The display device according to claim 1, wherein The light emitting element has a shape extending in one direction, and The first angle, which is the acute angle between the long axis of the first light-emitting element and the first direction, is different from the second angle, which is the acute angle between the long axis of the second light-emitting element and the first direction.

3. The display device according to claim 2, wherein The first angle is greater than the second angle.

4. The display device according to claim 2, wherein The first electrode further includes a fifth electrode surface connected to the other end of the first electrode surface and extending in a third direction different from the first direction and the second direction. wherein the second electrode further includes a sixth electrode surface connected to the other end of the third electrode surface, the sixth electrode surface extending in the third direction, the sixth electrode surface being spaced apart from the fifth electrode surface, and the sixth electrode surface facing the fifth electrode surface; and The light-emitting element further includes a third light-emitting element between the fifth electrode surface and the sixth electrode surface.

5. The display device according to claim 4, wherein A third angle, which is an obtuse angle between a long axis of the third light emitting element and the first direction, is greater than the first angle. The display device according to claim 5 , wherein: The direction of the long axis of the first light emitting element, the direction of the long axis of the second light emitting element, and the direction of the long axis of the third light emitting element intersect with each other.

7. The display device according to claim 1, further comprising: a first contact electrode contacting one end of the first light-emitting element and the first electrode surface of the first electrode; as well as The second contact electrode contacts the other end of the first light emitting element and the third electrode surface of the second electrode.

8. The display device according to claim 7, wherein The first contact electrode extends in the second direction from a portion connected to the second electrode surface of the first electrode surface to be in contact with the second electrode surface and one end of the second light emitting element.

9. The display device according to claim 8, wherein The third electrode surface of the second electrode is connected to the fourth electrode surface of the second electrode, and The second contact electrode extends in the second direction from a portion connected to the fourth electrode surface of the third electrode surface to make contact with the fourth electrode surface and the other end of the second light emitting element.

10. The display device according to claim 7, wherein The second electrode comprises: a first segment comprising the third electrode surface; and A second segment is spaced apart from the first segment and includes the fourth electrode surface.

11. The display device according to claim 10, further comprising: a third contact electrode contacting one end of the second light-emitting element and the second electrode surface of the first electrode; as well as A fourth contact electrode contacts the other end of the second light-emitting element and the fourth electrode surface of the second segment.

12. Display devices, including: a first electrode including a first electrode extending portion and a first electrode expansion portion, the first electrode extending portion extending in a first direction, the first electrode expansion portion being formed by expanding at least a portion of the first electrode extending portion; a second electrode including a second electrode extending portion and a second electrode bent portion, the second electrode extending portion extending in the first direction to be spaced apart from and facing the first electrode extending portion, the second electrode bent portion being formed by bending at least a portion of the second electrode extending portion to be spaced apart from and facing the first electrode extending portion; as well as At least one light emitting element is between the first electrode extension portion and the second electrode bent portion and has a shape such that a direction of a long axis of the at least one light emitting element intersects a direction of a long axis of another light emitting element.

13. The display device according to claim 12, wherein The first electrode extension portion includes a first electrode surface extending in the first direction and a second electrode surface extending in a second direction different from the first direction, wherein the second electrode curved portion includes a third electrode surface spaced apart from and facing the first electrode surface and a fourth electrode surface spaced apart from and facing the second electrode surface, and The at least one light-emitting element includes a first light-emitting element between the first electrode surface and the third electrode surface and a second light-emitting element between the second electrode surface and the fourth electrode surface.

14. The display device according to claim 13, further comprising: a first contact electrode contacting the first electrode extension portion and one end of the first light emitting element; as well as The second contact electrode contacts the second electrode bent portion and the other end of the first light emitting element.

15. The display device according to claim 13, further comprising: a third electrode, between the first electrode extension portion and the second electrode bent portion; as well as a fourth electrode, between the third electrode and the bent portion of the second electrode, wherein the third electrode comprises a plurality of third electrode segments spaced apart from each other in the first direction, and The fourth electrode includes a plurality of fourth electrode segments spaced apart from each other in the first direction.

16. The display device according to claim 15, wherein The light emitting element comprises: a third light-emitting element between the first electrode extension and one of the third electrode segments; a fourth light-emitting element between the third electrode segment and one of the fourth electrode segments; and A fifth light-emitting element is located between the fourth electrode segment and the second electrode bent portion.

17. The display device according to claim 15, wherein the third electrode segment includes a first sub-segment spaced apart from and facing the first electrode surface of the first electrode extension, and a second sub-segment spaced apart from and facing the second electrode surface, and The at least one light-emitting element includes a sixth light-emitting element and a seventh light-emitting element, the sixth light-emitting element is between the first electrode surface and the first sub-segment, and the seventh light-emitting element is between the second electrode surface and the second sub-segment.

18. The display device according to claim 17, further comprising: a third contact electrode, contacting the first sub-segment and one end of the sixth light-emitting element; as well as a fourth contact electrode, contacting the second sub-segment and one end of the seventh light-emitting element, The third contact electrode is spaced apart from the fourth contact electrode in the first direction.

19. Display devices, including: A plurality of pixels, each of the pixels defining at least one light emitting region, and each of the pixels comprising: a first electrode including a first electrode extending portion and a first electrode expansion portion, the first electrode extending portion extending in a first direction, the first electrode expansion portion being formed by expanding at least a portion of the first electrode extending portion; a second electrode including a second electrode extending portion and a second electrode bent portion, the second electrode extending portion extending in the first direction to be spaced apart from and facing the first electrode extending portion, the second electrode bent portion being formed by bending at least a portion of the second electrode extending portion to be spaced apart from and facing the first electrode extending portion; a first electrode extension; and The first light emitting element and the second light emitting element are between the first electrode extension portion and the second electrode bent portion, and each has a long axis extending in a direction intersecting each other, Wherein, the plurality of pixels include: a first pixel including a first light emitting region; and A second pixel is adjacent to the first pixel and includes a second light emitting region and a third light emitting region spaced apart from each other in the first direction.

20. The display device according to claim 19, wherein The second electrode includes second electrode rods extending in a fourth direction intersecting the first direction, wherein the second electrode extension portions of the first light emitting region and the second light emitting region branch from the second electrode rod, and The second electrode extension portions of the second light emitting region and the third light emitting region are connected to each other.

21. The display device according to claim 19, in, The first electrode extension portion includes a first electrode surface extending in the first direction and a second electrode surface extending in a second direction different from the first direction, wherein the second electrode curved portion includes a third electrode surface facing the first electrode surface and a fourth electrode surface facing the second electrode surface, and The at least one light-emitting element includes the first light-emitting element between the first electrode surface and the third electrode surface and the second light-emitting element between the second electrode surface and the fourth electrode surface.

22. The display device according to claim 21, further comprising: a partition wall surrounding the light emitting region of each of the pixels and including an opening region exposing the light emitting region, The second electrode extending portion and the second electrode bent portion are disposed between the first electrode and the partition wall.

23. The display device according to claim 22, in, The partition wall is arranged between adjacent pixels and includes a partition wall extension portion and a partition wall bent portion, wherein the partition wall extension portion extends in the first direction and corresponds to the first electrode surface of the first electrode extension portion, and the partition wall bent portion extends in the second direction and corresponds to the second electrode surface of the first electrode extension portion.

24. The display device according to claim 23, in, The partition wall extension portion and the partition wall bent portion are disposed between a region between the second light emitting region and the third light emitting region of the second pixel and the first light emitting region of the first pixel.

25. The display device according to claim 23, in, The opening region includes a first opening portion, a second opening portion, and a third opening portion, the first electrode extension portion is provided in the first opening portion, the first electrode expansion portion is provided in the second opening portion, and a width of the second opening portion in a fourth direction is greater than a width of the first opening portion in the fourth direction, the third opening portion connects the first opening portion and the second opening portion, and a width of the third opening portion narrows along the first direction; The partition wall extending portion is provided to correspond to the second opening portion of the opening region, and the partition wall bent portion is provided to correspond to the third opening portion of the opening region.

26. The display device according to claim 25, in, The partition wall includes a first opening region exposing the first light emitting region of the first pixel and a second opening region exposing the second light emitting region and the third light emitting region of the second pixel, and The first opening region includes one second opening portion, and the second opening region includes a plurality of second opening portions spaced apart from each other in the first direction.

27. The display device according to claim 26, in, Among the plurality of pixels, the first pixels and the second pixels are alternately arranged along the fourth direction, and The first opening regions and the second opening regions are also alternately arranged along the fourth direction.

28. Display devices, including: a first electrode including a first electrode surface and a second electrode surface, the first electrode surface extending in a first direction, the second electrode surface connected to one end of the first electrode surface and extending in a second direction different from the first direction; a second electrode including a third electrode surface and a fourth electrode surface, the third electrode surface extending in the first direction, spaced apart from and facing the first electrode surface, the fourth electrode surface connected to one end of the third electrode surface and extending in the second direction, spaced apart from and facing the second electrode surface; as well as at least one light-emitting element between the first electrode and the second electrode and including a first light-emitting element between the first electrode surface and the third electrode surface and a second light-emitting element between the second electrode surface and the fourth electrode surface, The first electrode further includes a fifth electrode surface connected to the other end of the first electrode surface, and the fifth electrode surface extends in a third direction different from the first direction and the second direction. wherein the second electrode further includes a sixth electrode surface connected to the other end of the third electrode surface, the sixth electrode surface extending in the third direction, the sixth electrode surface being spaced apart from the fifth electrode surface, and the sixth electrode surface facing the fifth electrode surface; and The light-emitting element further includes a third light-emitting element between the fifth electrode surface and the sixth electrode surface.

29. The display device according to claim 28, wherein The light emitting element has a shape extending in one direction, and The first angle, which is the acute angle between the long axis of the first light-emitting element and the first direction, is different from the second angle, which is the acute angle between the long axis of the second light-emitting element and the first direction.

30. The display device according to claim 29, wherein The first angle is greater than the second angle.

31. The display device according to claim 28, wherein A third angle, which is an obtuse angle between a long axis of the third light emitting element and the first direction, is greater than the first angle.

32. The display device according to claim 31, wherein The direction of the long axis of the first light emitting element, the direction of the long axis of the second light emitting element, and the direction of the long axis of the third light emitting element intersect with each other.

33. Display devices, including: a first electrode including a first electrode surface and a second electrode surface, the first electrode surface extending in a first direction, the second electrode surface connected to one end of the first electrode surface and extending in a second direction different from the first direction; a second electrode including a third electrode surface and a fourth electrode surface, the third electrode surface extending in the first direction, spaced apart from and facing the first electrode surface, the fourth electrode surface connected to one end of the third electrode surface and extending in the second direction, spaced apart from and facing the second electrode surface; at least one light-emitting element between the first electrode and the second electrode and including a first light-emitting element between the first electrode surface and the third electrode surface and a second light-emitting element between the second electrode surface and the fourth electrode surface; a first contact electrode contacting one end of the first light-emitting element and the first electrode surface of the first electrode; as well as The second contact electrode contacts the other end of the first light emitting element and the third electrode surface of the second electrode.

34. The display device according to claim 33, wherein The first contact electrode extends in the second direction from a portion connected to the second electrode surface of the first electrode surface to be in contact with the second electrode surface and one end of the second light emitting element.

35. The display device according to claim 34, wherein The third electrode surface of the second electrode is connected to the fourth electrode surface of the second electrode, and The second contact electrode extends in the second direction from a portion connected to the fourth electrode surface of the third electrode surface to make contact with the fourth electrode surface and the other end of the second light emitting element.

36. The display device according to claim 33, wherein The second electrode comprises: a first segment comprising the third electrode surface; and A second segment is spaced apart from the first segment and includes the fourth electrode surface.

37. The display device according to claim 36, further comprising: a third contact electrode contacting one end of the second light-emitting element and the second electrode surface of the first electrode; as well as A fourth contact electrode contacts the other end of the second light-emitting element and the fourth electrode surface of the second segment.

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