Display device

Abstract

A display device is provided. The display device includes a first electrode group including a plurality of electrodes, a second electrode group spaced apart from the first electrode group in a first direction and including the plurality of electrodes, a light emitting element disposed on the plurality of electrodes spaced apart from each other in a second direction and having a shape extending in the second direction, and a connection electrode. The connection electrode includes a first connection electrode, a second connection electrode, a third connection electrode, a fourth connection electrode, and a fifth connection electrode. The first connection electrode is spaced apart from a portion of the fourth connection electrode disposed on the second electrode group in the first direction. The second connection electrode is spaced apart from a portion of the fourth connection electrode disposed on the first electrode group in the first direction.

Description

Technical Field

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

[0002] With the development of multimedia technology, display devices are becoming increasingly important. As a result, various display devices such as organic light-emitting diode (OLED) display devices and liquid crystal display (LCD) devices are now in use.

[0003] Typical display devices include display panels such as organic light-emitting display panels or liquid crystal display (LCD) panels. Light-emitting display panels may include light-emitting elements. For example, light-emitting diodes (LEDs) include organic light-emitting diodes (OLEDs) that use organic materials as fluorescent materials and inorganic LEDs that use inorganic materials as fluorescent materials. Summary of the Invention

[0004] Technical issues

[0005] The disclosed aspects provide a display device with a novel electrode structure.

[0006] It should be noted that the disclosed aspects are not limited to those described above, and those skilled in the art will clearly understand from the following description other unmentioned aspects of the disclosure.

[0007] Technical solution

[0008] According to a disclosed embodiment, a display device includes: a first electrode group including a plurality of electrodes extending in a first direction and spaced apart from each other in a second direction intersecting the first direction; a second electrode group spaced apart from the first electrode group in the first direction and including a plurality of electrodes; a plurality of light-emitting elements disposed on the plurality of electrodes of the first and second electrode groups spaced apart from each other in the second direction and having a shape extending in the second direction; and a plurality of connecting electrodes disposed on at least some of the electrodes of the first and second electrode groups, electrically contacting the plurality of light-emitting elements and spaced apart from each other in the second direction, wherein the plurality of connecting electrodes includes: a first connecting electrode disposed on one of the electrodes of the first electrode group; a second connecting electrode disposed on one of the electrodes of the second electrode group; a third connecting electrode disposed on one or more of the electrodes of the first electrode group; a fourth connecting electrode disposed on another electrode of the first electrode group and another electrode of the second electrode group; and a fifth connecting electrode disposed on one or more of the electrodes of the second electrode group, wherein the first connecting electrode is spaced apart from a portion of the fourth connecting electrode in the second electrode group in the first direction, and the second connecting electrode is spaced apart from another portion of the fourth connecting electrode disposed on the first electrode group in the first direction.

[0009] The portion of the third connecting electrode disposed on the plurality of electrodes of the first electrode group can be spaced apart from the portion of the fifth connecting electrode disposed on the plurality of electrodes of the second electrode group in the first direction.

[0010] The first connecting electrode can electrically contact one of the multiple electrodes in the first electrode group, and the second connecting electrode can electrically contact one of the multiple electrodes in the second electrode group.

[0011] The first electrode group may include: a first electrode; a second electrode spaced apart from the first electrode in a second direction; a third electrode spaced apart from the second electrode in a second direction; and a fourth electrode spaced apart from the third electrode in a second direction. The second electrode group may include: a fifth electrode spaced apart from the first electrode in a first direction; a sixth electrode spaced apart from the second electrode in a first direction; a seventh electrode spaced apart from the third electrode in a first direction; and an eighth electrode spaced apart from the fourth electrode in a first direction. The plurality of light-emitting elements may include: a first light-emitting element disposed on the first and second electrodes; a second light-emitting element disposed on the third and fourth electrodes; a third light-emitting element disposed on the fifth and sixth electrodes; and a fourth light-emitting element disposed on the seventh and eighth electrodes.

[0012] The first connecting electrode may be disposed on the first electrode, the second connecting electrode may be disposed on the seventh electrode, and the third connecting electrode may include: a first extension portion disposed on the second electrode; a second extension portion disposed on the fourth electrode; and a first bridging portion electrically connecting the first extension portion and the second extension portion. The fourth connecting electrode may include: a third extension portion disposed on the third electrode; a fourth extension portion disposed on the fifth electrode; and a second bridging portion electrically connecting the third extension portion and the fourth extension portion. The fifth connecting electrode may include: a fifth extension portion disposed on the sixth electrode; a sixth extension portion disposed on the eighth electrode; and a third bridging portion electrically connecting the fifth extension portion and the sixth extension portion.

[0013] Each of the first, second, and fourth connecting electrodes can make electrical contact with a plurality of light-emitting elements on a first side in a second direction, and each of the third and fifth connecting electrodes can make electrical contact with a plurality of light-emitting elements on a second side in a second direction.

[0014] Each of the plurality of light-emitting elements may include: a first semiconductor layer disposed at a first end of each of the plurality of light-emitting elements; a second semiconductor layer disposed at a second end of each of the plurality of light-emitting elements; and an emitting layer between the first semiconductor layer and the second semiconductor layer. The first light-emitting element and the third light-emitting element may be oriented such that the first ends of the first light-emitting element and the third light-emitting element face a second direction, and the second light-emitting element and the fourth light-emitting element may be oriented such that the first ends of the second light-emitting element and the fourth light-emitting element face a direction opposite to the second direction.

[0015] The second bridging portion and the third bridging portion may be spaced apart from each other in the first separation portion between the first electrode group and the second electrode group, and the first bridging portion may be spaced apart from the first separation portion in a first direction.

[0016] The first connecting electrode may be disposed on the second electrode, the second connecting electrode may be disposed on the eighth electrode, the third connecting electrode may include: a first extension portion disposed on the first electrode; a second extension portion disposed on the third electrode; and a first bridging portion electrically connecting the first extension portion and the second extension portion, the fourth connecting electrode may include: a third extension portion disposed on the fourth electrode; a fourth extension portion disposed on the sixth electrode; and a second bridging portion electrically connecting the third extension portion and the fourth extension portion, and the fifth connecting electrode may include: a fifth extension portion disposed on the fifth electrode; a sixth extension portion disposed on the seventh electrode; and a third bridging portion electrically connecting the fifth extension portion and the sixth extension portion.

[0017] Each of the first, second, and fourth connecting electrodes can make electrical contact with a plurality of light-emitting elements on a second side in a second direction, and each of the third and fifth connecting electrodes can make electrical contact with a plurality of light-emitting elements on a first side in a second direction.

[0018] Each of the plurality of light-emitting elements may include: a first semiconductor layer disposed at a first end of each of the plurality of light-emitting elements; a second semiconductor layer disposed at a second end of each of the plurality of light-emitting elements; and an emitting layer disposed between the first semiconductor layer and the second semiconductor layer. The first light-emitting element and the third light-emitting element may be oriented such that the first ends of the first light-emitting element and the third light-emitting element face a direction opposite to the second direction, and the second light-emitting element and the fourth light-emitting element may be oriented such that the first ends of the second light-emitting element and the fourth light-emitting element face the second direction.

[0019] The first bridging portion and the second bridging portion may be spaced apart from each other in the first separation portion between the first electrode group and the second electrode group, and the third bridging portion may be spaced apart from the first separation portion in the first direction.

[0020] The display device may further include: a first insulating layer disposed on a plurality of electrodes of a first electrode group and a second electrode group; a second insulating layer disposed on a plurality of light-emitting elements and exposing a first side and a second side of each of the plurality of light-emitting elements in a second direction; and a third insulating layer disposed on the second insulating layer and exposing a first side of each of the plurality of light-emitting elements, wherein the plurality of light-emitting elements may be disposed between the first insulating layer and the second insulating layer.

[0021] The first, second, and fourth connecting electrodes can be disposed on the third insulating layer and electrically contact the first side of each of the plurality of light-emitting elements. The third and fifth connecting electrodes can be disposed on the second insulating layer and electrically contact the second side of each of the plurality of light-emitting elements. The third insulating layer can be stacked with the third and fifth connecting electrodes.

[0022] According to a disclosed embodiment, a display device includes: a first electrode group comprising a plurality of electrodes, the plurality of electrodes including: a first electrode extending in a first direction; a second electrode spaced apart from the first electrode in a second direction; a third electrode spaced apart from the second electrode in a second direction; and a fourth electrode spaced apart from the third electrode in a second direction; the second electrode group comprising: a fifth electrode spaced apart from the first electrode in a first direction; a sixth electrode spaced apart from the second electrode in a first direction; a seventh electrode spaced apart from the third electrode in a first direction; and an eighth electrode spaced apart from the fourth electrode in a first direction; a plurality of light-emitting elements disposed on the plurality of electrodes spaced apart from each other in a second direction and extending in the second direction; and a plurality of connecting electrodes disposed on at least some of the plurality of electrodes, electrically contacting the plurality of light-emitting elements and spaced apart from each other in a second direction, wherein the plurality of connecting electrodes includes: a first connecting electrode disposed on the first electrode; a second connecting electrode disposed on the third electrode; a third connecting electrode disposed on the second and sixth electrodes; a fourth connecting electrode disposed on the fifth and seventh electrodes; and a fifth connecting electrode disposed on the fourth and eighth electrodes.

[0023] Each of the first, second, and fourth connecting electrodes can make electrical contact with a plurality of light-emitting elements on a first side in a second direction, and each of the third and fifth connecting electrodes can make electrical contact with a plurality of light-emitting elements on a second side in a second direction.

[0024] The fourth connecting electrode may include: a plurality of extension portions disposed on the fifth and seventh electrodes; and a bridging portion extending in a second direction and electrically connecting the plurality of extension portions, wherein the extension portions may be disposed parallel to the first and second connecting electrodes in a first direction.

[0025] Each of the plurality of light-emitting elements may include: a first semiconductor layer disposed at a first end of each of the plurality of light-emitting elements; a second semiconductor layer disposed at a second end of each of the plurality of light-emitting elements; and an emitting layer disposed between the first semiconductor layer and the second semiconductor layer, and the plurality of light-emitting elements may include: a first type of light-emitting element including a first end electrically contacting a first connecting electrode and a second end electrically contacting a third connecting electrode; and a second type of light-emitting element including a first end electrically contacting a third connecting electrode and a second end electrically contacting a first connecting electrode.

[0026] The display device may further include: a first insulating layer disposed on a plurality of electrodes; a second insulating layer disposed on a plurality of light-emitting elements and exposing a first side and a second side of each of the plurality of light-emitting elements in a second direction; and a third insulating layer disposed on the second insulating layer and exposing a first side of each of the plurality of light-emitting elements in a second direction, wherein a first connecting electrode, a second connecting electrode and a fourth connecting electrode are disposed on the third insulating layer and electrically contact the first side of each of the plurality of light-emitting elements, the third connecting electrode and a fifth connecting electrode may be disposed on the second insulating layer and electrically contact the second side of each of the plurality of light-emitting elements, and the third insulating layer may be stacked with the third connecting electrode and the fifth connecting electrode.

[0027] The first connecting electrode can make electrical contact with the first electrode through a first contact portion passing through the first insulating layer, and the second connecting electrode can make electrical contact with the third electrode through a second contact portion passing through the first insulating layer.

[0028] Details of other embodiments are included in the detailed description and accompanying drawings.

[0029] Beneficial effects

[0030] According to the disclosed embodiments, the connecting electrodes that contact one side of each of the light-emitting elements can be disposed on the same layer in the display device. In such a display device, even if the electrode patterns are misaligned during the process of forming the connecting electrodes disposed on the same layer, the misalignment can be addressed by shifting the connecting electrodes in the same direction.

[0031] The effects of the embodiments are not limited to the examples described above, and many more effects are included in this disclosure. Attached Figure Description

[0032] Figure 1 This is a schematic plan view of a display device according to a disclosed embodiment.

[0033] Figure 2 This is a schematic plan view illustrating the pixels of a display device according to a disclosed embodiment.

[0034] Figure 3 It is shown Figure 2 A schematic planar view of the first sub-pixel.

[0035] Figure 4 It shows the setting Figure 2 A schematic plan view of the relative arrangement of electrodes and connecting electrodes in the first sub-pixel.

[0036] Figure 5 It is along Figure 3 A schematic cross-sectional view taken from lines Q1-Q1', Q2-Q2', and Q3-Q3'.

[0037] Figure 6 It is along Figure 3 A schematic cross-sectional view taken from line Q4-Q4'.

[0038] Figure 7 It is along Figure 3 A schematic cross-sectional view taken from line Q5-Q5'.

[0039] Figure 8 It is along Figure 3 A schematic cross-sectional view taken from lines Q6-Q6' and Q7-Q7'.

[0040] Figure 9 This is a schematic perspective view showing a light-emitting element according to a disclosed embodiment.

[0041] Figure 10 This is a schematic plan view showing the arrangement of the connection electrodes and light-emitting diodes of a display device according to an embodiment.

[0042] Figure 11 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to another embodiment.

[0043] Figure 12 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to another embodiment.

[0044] Figure 13 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to another embodiment.

[0045] Figure 14 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to another embodiment.

[0046] Figure 15 It shows the setting Figure 14 A schematic plan view of the arrangement of light-emitting diode elements on different electrode groups in a display device.

[0047] Figure 16 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to another embodiment.

[0048] Figure 17 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to another embodiment.

[0049] Figure 18 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to another embodiment.

[0050] Figure 19 It is along Figure 18 A schematic cross-sectional view taken from line Q8-Q8'.

[0051] Figure 20 It is shown Figure 18 A schematic plan view of another example of a display device.

[0052] Figure 21 This is a schematic plan view illustrating a sub-pixel of a display device according to another disclosed embodiment.

[0053] Figure 22 It shows the setting Figure 21 A schematic plan view of the arrangement of electrodes in sub-pixels in a display device. Detailed Implementation

[0054] The disclosure will now be described more fully below with reference to the accompanying drawings, in which preferred embodiments are illustrated. However, this disclosure may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0055] It will also be understood that when a layer is referred to as being "on" another layer or substrate, the layer may be directly on said other layer or substrate, or an intervening layer may be present. Throughout the specification, the same reference numerals denote the same components.

[0056] It will be understood that although the terms “first,” “second,” etc., may be used here to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first element discussed below may be referred to as the second element without departing from the publicly stated teaching. Similarly, the second element may also be referred to as the first element.

[0057] In the following description, embodiments will be illustrated with reference to the accompanying drawings.

[0058] Figure 1 This is a schematic plan view of a display device according to an embodiment.

[0059] Reference Figure 1 The display device 10 can display moving or still images. The display device 10 can refer to any electronic device that provides the displayed image. For example, the display device 10 may include a television, a personal laptop (PC), a monitor, an electronic billboard, an Internet of Things (IoT) device, a mobile phone, a smartphone, a tablet PC, an electronic watch, a smartwatch, a watch phone, a head-mounted display device, a mobile communication terminal, an electronic notebook, an e-book reader, a portable multimedia player (PMP), a navigation system, a game console, a digital camera, a camcorder, etc.

[0060] Display device 10 may include a display panel for providing a display screen. Examples of display panels may include inorganic light-emitting diode (LED) display panels, organic light-emitting diode (OLED) display panels, quantum dot (QD) light-emitting diode (OLED) display panels, plasma display panels, field emission display panels, etc. In the following description, an inorganic LED display panel may be used as an example of a display panel, but the disclosure is not limited thereto. Any other display panel may be used as the display panel, provided that the disclosed technical concept can be equivalently applied thereto.

[0061] The shape of the display device 10 can be modified in various ways. For example, the display device 10 can have shapes such as a rectangle with a long horizontal side, a rectangle with a long vertical side, a square, a quadrilateral with rounded corners (vertices), other polygons, a circle, etc. The shape of the display area DPA of the display device 10 can also be similar to the overall shape of the display device 10. Figure 1 In the example shown, the display device 10 may have a rectangular shape with a longer side in the second direction DR2.

[0062] The display device 10 may include a display area DPA and a non-display area NDA. An image may be displayed in the display area DPA. No image may be displayed in the non-display area NDA. The display area DPA may be referred to as the active area, and the non-display area NDA may be referred to as the inactive area. The display area DPA may generally occupy the center of the display device 10.

[0063] The display area DPA can include pixels PX. Pixels PX can be arranged in a matrix. In a planar view, the shape of each pixel PX can be, but is not limited to, a rectangle or a square. Each pixel PX can have a rhombus shape with sides tilted relative to one direction. Pixels PX can be arranged in a bar pattern or... Pattern arrangement. Each pixel PX may include at least one light-emitting element that emits light of a specific wavelength to display color.

[0064] A non-display area NDA can be disposed around the display area DPA. The non-display area NDA can entirely or partially surround the display area DPA. The display area DPA can have a rectangular shape, and the non-display area NDA can be adjacent to the four sides of the display area DPA. The non-display area NDA can form the frame of the display device 10. Line or circuit drivers included in the display device 10 can be disposed in the non-display area NDA, or external devices can be mounted in the non-display area NDA.

[0065] Figure 2 This is a schematic plan view showing the pixels of a display device according to an embodiment. Figure 2 A portion of pixel PX and another pixel PX adjacent to it in the first direction DR1 are shown.

[0066] Reference Figure 2 Each of the pixels PX in the display device 10 may include a sub-pixel PXn, where n is an integer from 1 to 3. For example, a pixel PX may include a first sub-pixel PX1, a second sub-pixel PX2, and a third sub-pixel PX3. The first sub-pixel PX1 may emit light of a first color, the second sub-pixel PX2 may emit light of a second color, and the third sub-pixel PX3 may emit light of a third color. For example, the first color may be blue, the second color may be green, and the third color may be red. However, it will be understood that the disclosure is not limited thereto. All sub-pixels PXn may emit light of the same color. In an embodiment, sub-pixels PXn may emit blue light. Although in Figure 2 The single pixel PX in the example shown comprises three sub-pixels PXn, but the disclosure is not limited thereto. A pixel PX may include more than two sub-pixels PXn.

[0067] Each of the sub-pixels PXn in the display device 10 may include an emitting region EMA and a non-emitting region. In the emitting region EMA, a light-emitting diode (also referred to as a light-emitting element) ED can emit light of a specific wavelength. In the non-emitting region, a light-emitting diode ED may not be provided, and light emitted from the light-emitting diode ED does not reach the non-emitting region, so that light does not escape from the non-emitting region. The emitting region may include a region in which a light-emitting diode ED is provided, and may include a region adjacent to the light-emitting diode ED and from which light emitted from the light-emitting diode ED is emitted.

[0068] The disclosure is not limited to this. The emitting region EMA may also include the area where light emitted from the light-emitting diode ED is reflected or refracted by other elements. The light-emitting diode ED may be disposed in each of the sub-pixels PXn, and the emitting region may include the area where the light-emitting element is disposed and the adjacent area.

[0069] Although the emission region EMA of the sub-pixel PXn in the example shown in the accompanying drawings has a substantially uniform area, the disclosure is not limited thereto. In some embodiments, the emission region EMA of the sub-pixel PXn may have different areas depending on the color or wavelength of light emitted from the light-emitting diodes ED disposed in the respective sub-pixels PXn.

[0070] Each of the sub-pixels PXn may further include a sub-region SA disposed in a non-emitting region. The sub-region SA may be disposed on one side of the emitting region EMA in the first direction DR1, and may be disposed between the emitting regions EMA of adjacent sub-pixels PXn in the first direction DR1. For example, the emitting regions EMA and sub-region SA may be repeatedly arranged in the second direction DR2, and may be alternately arranged in the first direction DR1. However, the disclosure is not limited thereto. The emitting regions EMA and sub-region SA of the pixel PX may have the same characteristics as... Figure 2 Different arrangements.

[0071] The third dam BNL3 can be positioned between the sub-region SA and the emitting region EMA, and the distance between the sub-region SA and the emitting region EMA can vary depending on the width of the third dam BNL3. The light-emitting diode ED may not be positioned in the sub-region SA, therefore light may not be emitted from the sub-region SA. Some of the electrodes RMEs positioned in the sub-pixel PXn can be positioned in the sub-region SA. The electrodes RMEs positioned in different sub-pixels PXn can be positioned separately in the separation portion ROP of the sub-region SA.

[0072] In the plan view, the third dam BNL3 can be arranged in a grid pattern on the front surface of the display area DPA, including the portion extending in the first direction DR1 and the second direction DR2. The third dam BNL3 can be arranged along the boundary of each of the sub-pixels PXn to distinguish adjacent sub-pixels PXn from each other. The third dam BNL3 can surround the emission region EMA arranged in each of the sub-pixels PXn to distinguish them.

[0073] Figure 3 It is shown Figure 2 A schematic planar view of the first sub-pixel. Figure 4 It shows the setting Figure 2 A schematic plan view of the relative arrangement of electrodes and connecting electrodes in the first sub-pixel. Figure 5 It is along Figure 3 A schematic cross-sectional view taken from lines Q1-Q1', Q2-Q2', and Q3-Q3'. Figure 6 It is along Figure 3 A schematic cross-sectional view taken from line Q4-Q4'. Figure 7 It is along Figure 3A schematic cross-sectional view taken from line Q5-Q5'. Figure 8 It is along Figure 3 A schematic cross-sectional view taken from lines Q6-Q6' and Q7-Q7'.

[0074] Figure 3 This shows a portion of a first sub-pixel PX1 included in pixel PX and another sub-pixel PXn adjacent to it in the first direction DR1. Figure 4 The arrangement of the electrode RME, the light-emitting diode ED, and the connecting electrode CNE in the first sub-pixel PX1 is shown. Figure 5 and Figure 6 The cross-sections of the different light-emitting diodes ED (e.g., first light-emitting diode ED1, second light-emitting diode ED2, third light-emitting diode ED3 and fourth light-emitting diode ED4) disposed in the first sub-pixel PX1 are shown. Figure 7 A cross-section of the contact portions CT1, CT2, CT3, and CT4 across the first sub-pixel PX1 is shown. Figure 8 A cross-section of a portion of the first separation section ROP1 between the different electrode groups RME#1 and RME#2 is shown.

[0075] Reference Figure 2 as well as Figures 3 to 8 The display device 10 may include a first substrate SUB, a semiconductor layer, a conductive layer, and an insulating layer disposed on the first substrate SUB. The semiconductor layer, conductive layer, and insulating layer may form the circuit layer CCL and the display element layer of the display device 10.

[0076] The first substrate SUB can be an insulating substrate. The first substrate SUB can be made of insulating materials such as glass, quartz, and polymer resin. The first substrate SUB can be a rigid substrate or a flexible substrate that can be bent, folded, or rolled up.

[0077] A first conductive layer may be disposed on a first substrate SUB. The first conductive layer may include a bottom metal layer BML. The bottom metal layer BML may be stacked with the active layer ACT1 of the first transistor T1. The bottom metal layer BML may include a material that blocks light and thus prevents light from entering the active layer ACT1 of the first transistor T1. The bottom metal layer BML may be removed.

[0078] The buffer layer BL can be disposed on the bottom metal layer BML and the first substrate SUB. The buffer layer BL can be formed on the first substrate SUB to protect the transistors of the pixel PX from moisture that penetrates through the first substrate SUB (which is susceptible to moisture penetration), and can have a surface planarization function.

[0079] A semiconductor layer may be disposed on the buffer layer BL. The semiconductor layer may include the active layer ACT1 of the first transistor T1. The active layer ACT1 may be partially stacked with the gate electrode G1 of the second conductive layer, which will be described below.

[0080] The semiconductor layer may include monocrystalline silicon or oxide semiconductors. In other embodiments, the semiconductor layer may include polycrystalline silicon. The oxide semiconductor may be an oxide semiconductor containing indium (In). For example, the oxide semiconductor may be at least one of indium tin oxide (ITO), indium zinc oxide (IZO), indium gallium oxide (IGO), indium zinc tin oxide (IZTO), indium gallium tin oxide (IGTO), indium gallium zinc oxide (IGZO), and indium gallium zinc tin oxide (IGZTO).

[0081] Although only the first transistor T1 is shown in the accompanying drawings in the sub-pixel PXn of the display device 10, the disclosure is not limited thereto. A greater number of transistors may be included in the display device 10.

[0082] The first gate insulating layer GI can be disposed on the semiconductor layer and the buffer layer BL. The first gate insulating layer GI can be used as the gate insulating film of the first transistor T1.

[0083] The second conductive layer may be disposed on the first gate insulating layer GI. The second conductive layer may include the gate electrode G1 of the first transistor T1. The gate electrode G1 may be stacked with the channel region of the active layer ACT1 in the thickness direction (e.g., the third direction DR3).

[0084] The first interlayer insulating layer IL1 can be disposed on the second conductive layer. The first interlayer insulating layer IL1 can serve as an insulating film between the second conductive layer and other layers disposed on the first interlayer insulating layer IL1, and can protect the second conductive layer.

[0085] The third conductive layer may be disposed on the first interlayer insulating layer IL1. The third conductive layer may include a first voltage line VL1, a second voltage line VL2, a first conductive pattern CDP1, and a second conductive pattern CDP2.

[0086] A high-level voltage (or a first power supply voltage) can be applied to the first voltage line VL1 to be transmitted to the first electrode RME1, and a low-level voltage (or a second power supply voltage) can be applied to the second voltage line VL2 to be transmitted to the second electrode RME2. A portion of the first voltage line VL1 can contact the active layer ACT1 of the first transistor T1 through a contact hole penetrating the first interlayer insulating layer IL1 and the first gate insulating layer GI. The first voltage line VL1 can serve as the drain electrode D1 of the first transistor T1.

[0087] The first conductive pattern CDP1 can electrically contact the active layer ACT1 of the first transistor T1 through a contact hole that penetrates the first interlayer insulating layer IL1 and the first gate insulating layer GI. The first conductive pattern CDP1 can also electrically contact the bottom metal layer BML through another contact hole. The first conductive pattern CDP1 can be used as the source electrode S1 of the first transistor T1.

[0088] The second conductive pattern CDP2 can be electrically connected to the first transistor T1 through the first conductive pattern CDP1. In some embodiments, the second conductive pattern CDP2 can be integral with the first conductive pattern CDP1 to form a single pattern. The second conductive pattern CDP2 can also be electrically connected to the first electrode RME1. The first transistor T1 can transmit a first power supply voltage applied from the first voltage line VL1 to the first electrode RME1.

[0089] although Figure 5 The diagram shows a first conductive pattern CDP1 and a second conductive pattern CDP2 formed in the same layer, but the disclosure is not limited thereto. In some embodiments, the second conductive pattern CDP2 may be formed as a conductive layer different from the first conductive pattern CDP1, for example, a fourth conductive layer disposed above a third conductive layer, with some insulating layers between the third and fourth conductive layers. The first voltage line VL1 and the second voltage line VL2 may be formed as the fourth conductive layer instead of the third conductive layer. The first voltage line VL1 may be electrically connected to the drain electrode D1 of the first transistor T1 through different conductive patterns. Although not shown in the figure, each of the second and third conductive layers may also include a capacitor electrode for a storage capacitor. The capacitor electrodes for the storage capacitor may be disposed in different layers to form a capacitor in a first interlayer insulating layer IL1 between the capacitor electrodes. In some embodiments, each of the capacitors in the storage capacitor may be integrated with the gate electrode G1 and the source electrode S1 of the first transistor T1. However, the disclosure is not limited thereto.

[0090] The buffer layer BL, the first gate insulating layer GI, and the first interlayer insulating layer IL1 can be composed of multiple inorganic layers stacked alternately on top of each other. For example, the buffer layer BL, the first gate insulating layer GI, and the first interlayer insulating layer IL1 can comprise two or more layers (or can be composed of two or more layers), wherein the two layers include silicon oxide (SiO2). x ), silicon nitride (SiN) x ) and silicon oxynitride (SiO) x N yAt least one of the inorganic layers in the multilayer is stacked on top of each other, wherein the inorganic layers are stacked alternately on top of each other. However, the disclosure is not limited thereto. The buffer layer BL, the first gate insulating layer GI, and the first interlayer insulating layer IL1 may be composed of a single inorganic layer comprising the insulating materials described above. In some embodiments, the first interlayer insulating layer IL1 may be made of an organic insulating material such as polyimide (PI).

[0091] The second and third conductive layers can be composed of a single layer or multiple layers, which are formed of one or an alloy of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu). However, the disclosure is not limited thereto.

[0092] The via layer (VIA) can be disposed on the third conductive layer. The via layer (VIA) may include an organic insulating material (e.g., polyimide (PI)) and may provide a flat surface.

[0093] As a display element layer, electrodes RME (e.g., first to eighth electrodes RME1, RME2, RME3, RME4, RME5, RME6, RME7, and RME8), first barrier BNL1, second barrier BNL2, third barrier BNL3, light-emitting diodes ED, and connecting electrodes CNE (e.g., first to fifth connecting electrodes CNE1, CNE2, CNE3, CNE4, and CNE5) can be disposed on the via layer VIA. Insulating layers PAS1, PAS2, and PAS3 can be disposed on the via layer VIA.

[0094] The first dam BNL1 and the second dam BNL2 can be directly disposed on the via layer VIA. The first dam BNL1 and the second dam BNL2 can have a shape extending in a first direction DR1 and can be spaced apart from each other in a second direction DR2. For example, the first dam BNL1 can extend from the center of the emitter region EMA in the first direction DR1, extending beyond the emitter region EMA and the sub-region SA. The first dam BNL1 can be disposed across sub-pixels PXn arranged in the first direction DR1. The first dam BNL1 can include a first dam portion BP1 and a second dam portion BP2, the first dam portion BP1 and the second dam portion BP2 having a width greater than the width of other portions of the first dam BNL1 measured in the second direction DR2. Dam portions BP1 and BP2 can be disposed within the emitter region EMA, and dam portions BP1 and BP2 can be disposed between the second dams BNL2 spaced apart from each other in the second direction DR2.

[0095] The second dikes BNL2 may be spaced apart from each other in the second direction DR2, and the first dikes BNL1 are located between the second dikes BNL2. The second dikes BNL2 may include a first sub-dike BNL_A (e.g., first sub-dikes BNL_A1 and BNL_A2) and a second sub-dike BNL_B (e.g., second sub-dikes BNL_B1 and BNL_B2). The first sub-dike BNL_A may be spaced apart from the second sub-dike BNL_B in the first direction DR1.

[0096] For example, the first sub-dike BNL_A1 can be located to the left of the first dike section BP1 of the first dike BNL1, and the first sub-dike BNL_A2 can be located to the right of the first dike section BP1. Between the dike sections BP1 and BP2 of the first dike BNL1, the first dike section BP1 is located on the upper side (e.g., in...). Figure 3 The second sub-dike (BNL_B) can be spaced apart from the first sub-dike (BNL_A) along the first direction DR1. The second sub-dike (BNL_B1) can be located to the left of the second dike portion BP2 of the first dike (BNL1), and the second sub-dike (BNL_B2) can be located to the right of the second dike portion BP2. The first dike (BNL1) and the second dike (BNL2) can be spaced apart from each other along the second direction DR2, and a light-emitting diode (LED) can be located between the first dike (BNL1) and the second dike (BNL2).

[0097] The length of the second dam BNL2 extending in the first direction DR1 can be less than the length of the emission area EMA surrounded by the third dam BNL3 in the first direction DR1. The first dam BNL1 can be formed on the front surface of the display area DPA with a linear pattern extending in one direction, and the second dam BNL2 can be disposed in the emission area EMA of each sub-pixel PXn to form an island-shaped pattern with a narrow width and extending in one direction.

[0098] The widths of the first portion BP1 and the second portion BP2 of the first dike BNL1, measured in the second direction DR2, can be greater than the width of the second dike BNL2, measured in the second direction DR2. Electrode RMEs can be disposed on either the first dike BNL1 or the second dike BNL2. As described below, the first dike BNL1 can have a larger width than the second dike BNL2, allowing different electrode RMEs to be disposed on the first portion BP1 and the second portion BP2. However, it will be understood that the disclosure is not limited thereto. The first dike BNL1 and the second dike BNL2 can have the same width.

[0099] The first barrier BNL1 and the second barrier BNL2 may have a structure that at least partially protrudes from the upper surface of the via layer VIA. The protruding portions of the first barrier BNL1 and the second barrier BNL2 may have sloping side surfaces. Light emitted from the light-emitting diode ED can be reflected by electrodes RME disposed on the first barrier BNL1 and the second barrier BNL2, such that the light can be emitted toward the upper side of the via layer VIA. However, it will be understood that the disclosure is not limited thereto. The first barrier BNL1 and the second barrier BNL2 may have a semi-circular or semi-elliptical shape with curved outer surfaces. The first barrier BNL1 and the second barrier BNL2 may include, but are not limited to, organic insulating materials such as polyimide (PI).

[0100] The electrode RME can extend in one direction and be disposed in each of the sub-pixels PXn. The electrode RME can extend in the first direction DR1 to be disposed across at least the emission region EMA and sub-region SA of the sub-pixel PXn, and the electrode RME can be spaced apart from each other in the second direction DR2.

[0101] In an embodiment, the electrodes RME can be classified or divided into electrode groups RME#1 and RME#2, which are spaced apart from each other in the second direction DR2 and include electrodes, and the electrodes of electrode groups RME#1 and RME#2 can be spaced apart from each other in the second direction DR2.

[0102] For example, the electrode RME disposed in a single sub-pixel PXn can be divided into a first electrode group RME#1 and a second electrode group RME#2. Relative to the center of the emission region EMA, the first electrode group RME#1 can be disposed on one side of the emission region EMA in the first direction DR1 (e.g., the upper side of the emission region EMA), while the second electrode group RME#2 can be disposed on the other side (or opposite side) of the emission region EMA (e.g., the lower side), and can be spaced apart from the first electrode group RME#1 in the first direction DR1. The first electrode group RME#1 and the second electrode group RME#2 of the sub-pixel PXn can be spaced apart from each other relative to a first separation portion ROP1 located in the emission region EMA.

[0103] The RME of the first electrode group RME#1 can be partially disposed in the sub-region SA of the sub-pixel PXn, extending beyond the third embankment BNL3. Similarly, the RME of the second electrode group RME#2 can also be partially disposed in the sub-region SA of another sub-pixel PXn, extending beyond the third embankment BNL3. Within the sub-region SA, the first electrode group RME#1 and the second electrode group RME#2 of different sub-pixels PXn can be spaced apart from each other. Furthermore, the first electrode group RME#1 and the second electrode group RME#2 of different sub-pixels PXn can be spaced apart from each other relative to the second separation portion ROP2 located within the sub-region SA of the sub-pixel PXn.

[0104] Electrodes of different electrode groups RME#1 and RME#2 can be arranged side-by-side in the first direction DR1. Electrodes belonging to the first electrode group RME#1 can be arranged parallel to electrodes belonging to the second electrode group RME#2 in the first direction DR1. This arrangement of the electrodes RME can be formed by forming a single electrode line extending in the first direction DR1, placing a light-emitting diode ED on the electrode line, and separating the electrode line during subsequent processes. The electrode line can be used to generate an electric field in the sub-pixel PXn to align the light-emitting diode ED during the manufacturing process of the display device 10. After aligning the light-emitting diode ED, the electrode line can be separated by a first separation portion ROP1 and a second separation portion ROP2, so that electrode groups RME#1 and RME#2 can be formed spaced apart from each other.

[0105] The electrodes included in each of electrode groups RME#1 and RME#2 will be described in detail. Each of electrode groups RME#1 and RME#2 may include electrodes spaced apart from each other in the second direction DR2. For example, the first electrode group RME#1 may include a first electrode RME1, a second electrode RME2, a third electrode RME3, and a fourth electrode RME4, and the second electrode group RME#2 may include a fifth electrode RME5, a sixth electrode RME6, a seventh electrode RME7, and an eighth electrode RME8. The electrodes RME disposed in each of the sub-pixels PXn may be disposed on a first embankment BNL1 or a second embankment BNL2 spaced apart from each other.

[0106] The first electrode group RME#1 can be disposed on the upper side of the first separation portion ROP1 in the first direction DR1, and the first electrode RME1, the second electrode RME2, the third electrode RME3, and the fourth electrode RME4 can be arranged sequentially and spaced apart from each other in the second direction DR2. The electrodes of the first electrode group RME#1 can extend from the first separation portion ROP1 located in the emission region EMA of the sub-pixel PXn to the second separation portion ROP2 located in the sub-region SA of the sub-pixel PXn.

[0107] The first electrode RME1 can be located to the left of the center of the emission region EMA, and a portion of the first electrode RME1 can be located on the first sub-dike BNL_A1 located to the left of the first dike BNL1. The second electrode RME2 can be spaced apart from the first electrode RME1 in the second direction DR2, and can be located adjacent to the center of the emission region EMA. A portion of the second electrode RME2 can be located on one side (or the first side) of the first dike BP1 facing the first sub-dike BNL_A1 located to the left of the first dike BNL1.

[0108] The third electrode RME3 can be spaced apart from the second electrode RME2 in the second direction DR2, and can be disposed adjacent to the center of the emission region EMA. A portion of the third electrode RME3 can be disposed on the opposite side (or opposite side or second side) of the first sub-dike BNL_A2 disposed to the right of the first dike BNL1, facing the first dike BP1. The fourth electrode RME4 can be spaced apart from the third electrode RME3 in the second direction DR2, and can be disposed to the right of the center of the emission region EMA. A portion of the fourth electrode RME4 can be disposed on the first sub-dike BNL_A2 disposed to the right of the first dike BNL1.

[0109] The electrodes of the second electrode group RME#2 can be spaced apart from the electrodes of the first electrode group RME#1 in the first direction DR1. The second electrode group RME#2 can be located on the other side (or opposite side or second side) of the first separation portion ROP1 (e.g., below the first separation portion ROP1 in the first direction DR1), and the fifth electrode RME5, the sixth electrode RME6, the seventh electrode RME7, and the eighth electrode RME8 can be arranged sequentially and spaced apart from each other in the second direction DR2. The electrodes of the second electrode group RME#2 can extend from the first separation portion ROP1 located in the emission region EMA of sub-pixel PXn to the second separation portion ROP2 located in the sub-region SA of another sub-pixel PXn adjacent to sub-pixel PXn in the first direction DR1.

[0110] The fifth electrode RME5 can be located to the left of the center of the emission region EMA, and a portion of the fifth electrode RME5 can be located on the second sub-dike BNL_B1 located to the left of the first dike BNL1. The sixth electrode RME6 can be spaced apart from the fifth electrode RME5 in the second direction DR2, and can be located adjacent to the center of the emission region EMA. A portion of the sixth electrode RME6 can be located on the side of the second dike BP2 facing the second sub-dike BNL_B1 located to the left of the first dike BNL1.

[0111] The seventh electrode RME7 can be spaced apart from the sixth electrode RME6 in the second direction DR2, and can be disposed adjacent to the center of the emission region EMA. A portion of the seventh electrode RME7 can be disposed on the opposite side of the second sub-dike BNL_B2, which is disposed to the right of the first dike BNL1, facing the second dike BP2. The eighth electrode RME8 can be spaced apart from the seventh electrode RME7 in the second direction DR2, and can be disposed to the right of the center of the emission region EMA. A portion of the eighth electrode RME8 can be disposed on the second sub-dike BNL_B2, which is disposed to the right of the first dike BNL1.

[0112] Electrode RMEs can be distinguished from each other based on whether each electrode RME is electrically connected to the conductive layer beneath it. For example, the first electrode RME1 and the seventh electrode RME7 can be electrically connected to the third conductive layer beneath the first electrode RME1 and the seventh electrode RME7, while other electrodes can be not electrically connected to the third conductive layer beneath them.

[0113] The first electrode RME1 and the seventh electrode RME7 can be electrically connected to the third conductive layer through the first electrode contact hole CTD and the second electrode contact hole CTS, respectively. The first electrode contact hole CTD and the second electrode contact hole CTS are formed in the portion where the first electrode RME1 and the seventh electrode RME7 are stacked with the third layer BNL3. The first electrode RME1 can electrically contact the second conductive pattern CDP2 through the first electrode contact hole CTD passing through the via layer VIA below it. The seventh electrode RME7 can electrically contact the second voltage line VL2 through the second electrode contact hole CTS passing through the via layer VIA below it. The first electrode RME1 can be electrically connected to the first transistor T1 through the first conductive pattern CDP1 to receive the first power supply voltage. The seventh electrode RME7 can be electrically connected to the second voltage line VL2 to receive the second power supply voltage.

[0114] However, the disclosure is not limited thereto. In some embodiments, the first electrode RME1 may be electrically connected to the second voltage line VL2, and the seventh electrode RME7 may be electrically connected to the first voltage line VL1. Although Figure 5 The diagram shows a first electrode contact hole (CTD) and a second electrode contact hole (CTS) formed beneath the third embankment (BNL3), but the disclosure is not limited thereto. The first electrode contact hole (CTD) and the second electrode contact hole (CTS) can be formed at other locations. For example, the first electrode contact hole (CTD) and the second electrode contact hole (CTS) can be formed in the emitter region (EMA) or the sub-region (SA).

[0115] On the other hand, other electrodes may not be directly electrically connected to the third conductive layer. Other electrodes can be electrically connected to the first electrode RME1 or the seventh electrode RME7 via the connection electrode CNE and the light-emitting diode ED, as described below. However, it will be understood that the disclosure is not limited thereto. In some embodiments, other electrodes may be floating electrodes that are not electrically connected to the first electrode RME1 or the seventh electrode RME7. It will be noted that the first electrode RME1 and the seventh electrode RME7 do not necessarily need to be directly connected to the third conductive layer. Depending on the arrangement and connection of the light-emitting diode ED and the connection electrode CNE, as described below, other electrodes can be connected to the third conductive layer.

[0116] Electrode RME may be disposed at least on the inclined side surface of the first dam BNL1 or the second dam BNL2. In an embodiment, the width of electrode RME measured in the second direction DR2 may be smaller than the width of the first dam BNL1 or the second dam BNL2 measured in the second direction DR2. Each of the electrode RMEs may cover at least one side of the first dam BNL1 or the second dam BNL2 or overlap with at least one side of the first dam BNL1 or the second dam BNL2 to reflect light emitted from the light-emitting diode ED.

[0117] The distance between the electrodes RMEs spaced apart on the second direction DR2 can be less than the distance between the first dam BNL1 and the second dam BNL2. At least a portion of each of the electrodes RMEs can be directly disposed on the via layer VIA, so that they can be disposed on the same plane.

[0118] The electrode RME can be electrically connected to the light-emitting diode ED. The electrode RME can be electrically connected to the light-emitting diode ED via the connection electrodes CNE (e.g., the first to fifth connection electrodes CNE1, CNE2, CNE3, CNE4 and CNE5) described below, and can transmit electrical signals applied from the conductive layer below the connection electrode CNE to the light-emitting diode ED.

[0119] Each of the electrodes RMEs may include a conductive material with high reflectivity. For example, the electrode RME may include metals such as silver (Ag), copper (Cu), and aluminum (Al) as materials with high reflectivity, and may be an alloy including aluminum (Al), nickel (Ni), lanthanum (La), etc. The electrode RME may reflect light emitted by the light-emitting diode ED and traveling to the side surfaces of the first dam BNL1 and the second dam BNL2 towards the upper side of each of the sub-pixels PXn.

[0120] However, it will be understood that the disclosure is not limited thereto. The electrode RME may also include a transparent conductive material. For example, each of the electrode RMEs may include materials such as ITO, IZO, and ITZO. In some embodiments, each of the electrodes RME1 and RME2 may have a structure in which layers of one or more transparent conductive materials and one or more highly reflective metal layers are stacked on top of each other, or may be composed of a single layer comprising them. For example, each of the electrode RMEs may have a stacked structure such as ITO / Ag / ITO, ITO / Ag / IZO, or ITO / Ag / ITZO / IZO.

[0121] The first insulating layer PAS1 can be disposed on the via layer VIA and the electrode RME. The first insulating layer PAS1 can completely cover the electrode RME or be superimposed on the electrode RME, and can protect the electrode RME and insulate them from each other. The first insulating layer PAS1 can also prevent the light-emitting diode ED disposed thereon from being damaged due to direct contact with other components.

[0122] In one embodiment, the first insulating layer PAS1 may have a step, such that a portion of the upper surface of the first insulating layer PAS1 is recessed between electrodes RME spaced apart from each other along the second direction DR2. A light-emitting diode ED may be disposed on the step on the upper surface of the first insulating layer PAS1, and a space may be formed between the light-emitting diode ED and the first insulating layer PAS1.

[0123] The first insulating layer PAS1 may include contact portions CT1, CT2, CT3, CT4, and CT5 on a portion of the upper surface of each of the exposed electrodes RME. Contact portions CT1, CT2, CT3, CT4, and CT5 may penetrate the first insulating layer PAS1, and the connection electrode CNE, described below, may contact the electrodes RME exposed through contact portions CT1, CT2, CT3, CT4, and CT5.

[0124] The third dike BNL3 can be disposed on the first insulating layer PAS1. The third dike BNL3 can be disposed in a planar view as a grid pattern including portions extending in the first direction DR1 and the second direction DR2, and can be disposed at the boundary of sub-pixels PXn to distinguish adjacent sub-pixels PXn from each other. The third dike BNL3 can surround the emission region EMA and the sub-region SA, and the area defined by and opened by the third dike BNL3 can be the emission region EMA and the sub-region SA.

[0125] The third dam BNL3 may have a height. In some embodiments, the upper surface of the third dam BNL3 may be higher than the upper surfaces of the first dam BNL1 and the second dam BNL2, and the thickness of the third dam BNL3 may be equal to or greater than the thickness of the first dam BNL1 and the second dam BNL2. The third dam BNL3 can prevent ink spillage into adjacent sub-pixels PXn during the inkjet printing process of manufacturing the display device 10. The third dam BNL3 can prevent ink from mixing with each other in different sub-pixels PXn in which different light-emitting diodes ED are dispersed. Similar to the first dam BNL1, the third dam BNL3 may include, but is not limited to, polyimide.

[0126] A light-emitting diode (LED) can be disposed on a first insulating layer PAS1. The LED may include multiple layers disposed on the upper surface of the first substrate SUB in a direction parallel to the upper surface of the first substrate SUB. The LED of the display device 10 can be arranged such that the LED extends parallel to the first substrate SUB. Multiple semiconductor layers included in the LED may be sequentially disposed in a direction parallel to the upper surface of the first substrate SUB. However, it will be understood that the disclosure is not limited thereto. In some embodiments, where the LED has a different structure, layers may be disposed in a direction perpendicular to the first substrate SUB.

[0127] A light-emitting diode (LED) can be disposed on an electrode RME spaced apart from each other in a second direction DR2, located between a first dam BNL1 and a second dam BNL2. The LEDs can be spaced apart from each other in the first direction DR1 along which the electrodes RME extend, and can be aligned substantially parallel to each other. The LED can have a shape extending in one direction and can have a length greater than the shortest distance between the electrodes RME spaced apart in the second direction DR2. The two ends of each LED can be disposed on different electrodes RME, and the direction in which the electrodes RME extend can be substantially perpendicular to the direction in which the LED extends. However, it will be understood that the disclosure is not limited thereto. The LED can be disposed at an angle relative to the direction in which the electrodes RME extend.

[0128] Depending on the material of the semiconductor layer, the light-emitting diodes (EDs) disposed in each of the sub-pixels PXn can emit light of different wavelengths. However, it will be understood that the disclosure is not limited thereto. The light-emitting diodes (EDs) disposed in the sub-pixels PXn can emit light of the same color. The light-emitting diodes (EDs) may comprise semiconductor layers doped with impurities of different conductivity types and can be aligned according to the electric field generated on the electrodes RME, such that their ends face a specific direction.

[0129] A light-emitting diode (LED) can have a shape extending in one direction and can be classified or divided into different LEDs based on the electrodes RME on which the two ends of the LED are positioned. For example, as an LED disposed on a first electrode group RME#1, the LED may include a first LED ED1 having two ends respectively disposed on the first electrode RME1 and the second electrode RME2, and a second LED ED2 having two ends respectively disposed on the third electrode RME3 and the fourth electrode RME4. For example, as an LED disposed on a second electrode group RME#2, the LED may include a third LED ED3 having two ends respectively disposed on the fifth electrode RME5 and the sixth electrode RME6, and a fourth LED ED4 having two ends respectively disposed on the seventh electrode RME7 and the eighth electrode RME8. The two ends of each of the LEDs (e.g., the first to fourth LEDs ED1, ED2, ED3 and ED4) can respectively make electrical contact with different connecting electrodes CNE, and can be electrically connected to the electrode RME through the connecting electrodes CNE.

[0130] Each of the light-emitting diodes (LEDs) may include a semiconductor layer, and a first end and a second end opposite to the first end may be defined based on one of the semiconductor layers. The first end and the second end of each of the LEDs may face different directions. For example, the first end of each of the first LEDs ED1 may be disposed on a first electrode RME1, while the second end of each of the first LEDs ED1 may be disposed on a second electrode RME2. The first end of each of the third LEDs ED3 may be disposed on a fifth electrode RME5, while the second end of each of the third LEDs ED3 may be disposed on a sixth electrode RME6. The first ends of the first LEDs ED1 and the third LEDs ED3 may face to the left, which is one side in the second direction DR2. On the other hand, the first end of each of the second LEDs ED2 may be disposed on a fourth electrode RME4, while the second end of each of the second LEDs ED2 may be disposed on a third electrode RME3. The first end of each of the fourth LEDs ED4 may be disposed on an eighth electrode RME8, while the second end of each of the fourth LEDs ED4 may be disposed on a seventh electrode RME7. The first ends of the second light-emitting diode ED2 and the fourth light-emitting diode ED4 can face the right side, which is the opposite side in the second direction DR2.

[0131] As used herein, the term "both sides" of a light-emitting diode (LED) can refer to one side (or the first side) and the other side (or the opposite side or the second side) in the direction in which the LED extends, regardless of the type of semiconductor layer included in the LED. Conversely, the term "both ends" of an LED can be distinguished by the location of the semiconductor layer included in the LED. Therefore, "one side" or "opposite side" of an LED and "first end" or "second end" of an LED can be used to refer to the same portion in some embodiments, and to different portions in others. For example, for the first LED ED1 and the third LED ED3, "one side" can refer to the first end, and "opposite side" can refer to the second end. For the second LED ED2 and the fourth LED ED4, "one side" can refer to the second end, and "opposite side" can refer to the first end. For example, in a plan view, the term "both sides" of an LED can refer to one side and the opposite side in the second direction DR2, while the term "both ends" of an LED can refer to the first end and the second end relative to the location of the semiconductor layer within the LED. In the following description, the two sides of the light-emitting diode ED can be defined based on the position of the light-emitting diode ED and can be associated with the contact of the same connecting electrode CNE, while the two ends of the light-emitting diode ED can be defined based on the type of semiconductor layer and can be associated with the electrical connection of the same connecting electrode CNE.

[0132] The light-emitting diode (ED) can electrically contact the connection electrodes CNE (e.g., the first to fifth connection electrodes CNE1, CNE2, CNE3, CNE4, and CNE5), allowing the ED to be electrically connected to the connection electrodes CNE. Since a portion of the semiconductor layer of the ED is exposed at its end surface on one side of the ED's extension direction, the exposed portion of the semiconductor layer can electrically contact the connection electrodes CNE. Each of the EDs can be electrically connected to the first electrode RME1 or the conductive layer beneath the via layer VIA via the connection electrodes CNE, and electrical signals can be applied to the ED to emit light of a specific wavelength.

[0133] The second insulating layer PAS2 can be disposed on the light-emitting diode ED. For example, the second insulating layer PAS2 can be configured to partially surround the outer surface of the light-emitting diode ED, such that the sides or ends of the light-emitting diode ED are not covered by the second insulating layer PAS2 or are superimposed on the second insulating layer PAS2. In a plan view, the portion of the second insulating layer PAS2 disposed on the light-emitting diode ED can extend along a first direction DR1 on the first insulating layer PAS1, thereby forming a line pattern or island pattern in each of the sub-pixels PXn. The second insulating layer PAS2 can protect and fix the light-emitting diode ED during the manufacturing process of the display device 10. The second insulating layer PAS2 can fill the space between the light-emitting diode ED and the first insulating layer PAS1 below the light-emitting diode ED.

[0134] The second insulating layer PAS2 can also be disposed on the first barrier BNL1, the second barrier BNL2, and the third barrier BNL3. The second insulating layer PAS2 can be disposed on the first insulating layer PAS1, and can expose some portions of the electrode RME and both sides of the light-emitting diode ED together. The shape of the second insulating layer PAS2 can be formed by integrally forming the second insulating layer PAS2 on the first insulating layer PAS1 during the manufacturing process of the display device 10 and removing portions of the second insulating layer PAS2 during the process of exposing both sides of the light-emitting diode ED.

[0135] The second insulating layer PAS2 can be partially disposed in the sub-region SA. In the process of setting up the light-emitting diode ED and dividing the electrode lines into multiple sections, the first insulating layer PAS1 and the second insulating layer PAS2 can also be partially removed. A portion of the via layer VIA can be exposed in the separation section ROP. The third insulating layer PAS3 can be directly disposed on the exposed portion of the via layer VIA.

[0136] The connecting electrodes CNE (e.g., the first to fifth connecting electrodes CNE1, CNE2, CNE3, CNE4 and CNE5) and the third insulating layer PAS3 can be disposed on the second insulating layer PAS2.

[0137] The connecting electrode CNE can be disposed on the light-emitting diode ED and the electrode RME. The connecting electrode CNE can be partially disposed on the second insulating layer PAS2 and can be insulated from other connecting electrodes CNE through the second insulating layer PAS2 and the third insulating layer PAS3. The connecting electrode CNE can electrically contact the light-emitting diode ED and the electrode RME. The connecting electrode CNE can directly contact the semiconductor layer exposed at both end surfaces of the light-emitting diode ED, and can make electrical contact with at least one of the electrodes RME through contact portions CT1, CT2, CT3, CT4, and CT5 passing through the first insulating layer PAS1. The two ends of the light-emitting diode ED can be electrically connected to the electrode RME through the connecting electrodes CNE1, CNE2, and CNE3.

[0138] In an embodiment, the connection electrode CNE of the display device 10 can be divided into connection electrodes disposed on different layers. For example, the connection electrode CNE may include a first connection electrode CNE1, a second connection electrode CNE2, and a fourth connection electrode CNE4 as a first connection electrode layer CNE#1 disposed on the third insulating layer PAS3, and a third connection electrode CNE3 and a fifth connection electrode CNE5 as a second connection electrode layer CNE#2 disposed between the second insulating layer PAS2 and the third insulating layer PAS3.

[0139] The first connecting electrode CNE1 may have a shape extending in the first direction DR1 and may be disposed on the first electrode RME1. The first connecting electrode CNE1 may electrically contact the first electrode RME1 through a first contact portion CT1 exposing the upper surface of the first electrode RME1, and may also electrically contact one side or the first end of the first light-emitting diode ED1. The second connecting electrode CNE2 may have a shape extending in the first direction DR1 and may be disposed on the seventh electrode RME7. The second connecting electrode CNE2 may electrically contact the seventh electrode RME7 through a second contact portion CT2 exposing the upper surface of the seventh electrode RME7, and may also electrically contact one side or the second end of the fourth light-emitting diode ED4.

[0140] The first connecting electrode CNE1 and the second connecting electrode CNE2 can transmit the electrical signals applied to the first electrode RME1 and the seventh electrode RME7 to one end of each of the light-emitting diodes ED. The electrical signals can be directly applied to the first end of each of the first light-emitting diodes ED1 and the second end of each of the fourth light-emitting diodes ED4. The electrical signals can also be transmitted through the second end of each of the first light-emitting diodes ED1 and the first end of each of the fourth light-emitting diodes ED4 to the other connecting electrodes CNE and the light-emitting diodes ED.

[0141] The third connecting electrode CNE3 can be disposed across the second electrode RME2 and the fourth electrode RME4, which are electrodes of the first electrode group RME#1. The third connecting electrode CNE3 may include a first extension portion CN_E1 and a second extension portion CN_E2 extending in the first direction DR1, and a first bridging portion CN_B1 connecting the first extension portion CN_E1 and the second extension portion CN_E2.

[0142] The first extension portion CN_E1 can be disposed on the second electrode RME2, and the second extension portion CN_E2 can be disposed on the fourth electrode RME4. The first extension portion CN_E1 can be spaced apart from and face the first connecting electrode CNE1, and the second extension portion CN_E2 can be spaced apart from the third extension portion CN_E3 of the fourth connecting electrode CNE4. The first extension portion CN_E1 and the second extension portion CN_E2 can respectively make electrical contact with the second electrode RME2 and the fourth electrode RME4 exposed through the third contact portion CT3. The first extension portion CN_E1 can make electrical contact with the other side or the second end of each of the first light-emitting diodes ED1, and the second extension portion CN_E2 can make electrical contact with the other side or the first end of each of the second light-emitting diodes ED2. Electrical signals can be transmitted to each of the second electrode RME2 and the fourth electrode RME4 through the third connecting electrode CNE3. The first bridging portion CN_B1 can have a shape extending in the second direction DR2 and can be spaced apart from the first separation portion ROP1 in the first direction DR1. The first bridging portion CN_B1 can be disposed in the space between the second dam BNL2 and the third dam BNL3. In the plan view, the third connecting electrode CNE3 can have a shape surrounding a third extension portion CN_E3 of the fourth connecting electrode CNE4, which will be described below.

[0143] The fourth connecting electrode CNE4 can be positioned across the third electrode RME3, which is an electrode in the first electrode group RME#1, and across the fifth electrode RME5, which is an electrode in the second electrode group RME#2. The fourth connecting electrode CNE4 may include a third extension CN_E3 and a fourth extension CN_E4 extending in the first direction DR1, and a second bridging portion CN_B2 connecting the third extension CN_E3 and the fourth extension CN_E4.

[0144] The third extension portion CN_E3 can be disposed on the third electrode RME3, and the fourth extension portion CN_E4 can be disposed on the fifth electrode RME5. The third extension portion CN_E3 can be spaced apart from and face the second extension portion CN_E2 of the third connecting electrode CNE3, and the fourth extension portion CN_E4 can be spaced apart from and face the fifth extension portion CN_E5 of the fifth connecting electrode CNE5 (described below). The third extension portion CN_E3 and the fourth extension portion CN_E4 can respectively electrically contact the third electrode RME3 and the fifth electrode RME5 exposed through the fourth contact portion CT4. The third extension portion CN_E3 can electrically contact one side or the second end of each of the second light-emitting diodes ED2, and the fourth extension portion CN_E4 can electrically contact one side or the first end of each of the third light-emitting diodes ED3. Electrical signals can be transmitted through the fourth connecting electrode CNE4 to each of the third electrode RME3 and the fifth electrode RME5. The second bridging portion CN_B2 may have a shape that extends in the second direction DR2 and may be located in the first separation portion ROP1.

[0145] The fifth connecting electrode CNE5 can be disposed across the sixth electrode RME6 and the eighth electrode RME8, which are electrodes of the second electrode group RME#2. The fifth connecting electrode CNE5 may include a fifth extension portion CN_E5 and a sixth extension portion CN_E6 extending in the first direction DR1, and a third bridging portion CN_B3 connecting the fifth extension portion CN_E5 and the sixth extension portion CN_E6.

[0146] The fifth extension portion CN_E5 can be disposed on the sixth electrode RME6, and the sixth extension portion CN_E6 can be disposed on the eighth electrode RME8. The fifth extension portion CN_E5 can be spaced apart from and face the fourth extension portion CN_E4 of the fourth connecting electrode CNE4, and the sixth extension portion CN_E6 can be spaced apart from and face the second connecting electrode CNE2. The fifth extension portion CN_E5 and the sixth extension portion CN_E6 can respectively electrically contact the sixth electrode RME6 and the eighth electrode RME8 exposed through the fifth contact portion CT5. The fifth extension portion CN_E5 can electrically contact the opposite side or the second end of each of the third light-emitting diodes ED3, and the sixth extension portion CN_E6 can electrically contact the opposite side or the first end of each of the fourth light-emitting diodes ED4. Electrical signals can be transmitted through the fifth connecting electrode CNE5 to each of the sixth electrode RME6 and the eighth electrode RME8. The third bridging portion CN_B3 may have a shape extending in the second direction DR2 and may be spaced apart from the first separating portion ROP1 in the first direction DR1. The third bridging portion CN_B3 may be disposed in the space between the second dam BNL2 and the third dam BNL3. In the plan view, the fifth connecting electrode CNE5 may have a shape surrounding the second connecting electrode CNE2.

[0147] In the plan view, the connecting electrodes CNE can be spaced apart from each other in the second direction DR2. The first connecting electrode CNE1, the second connecting electrode CNE2, and the first to sixth extensions CN_E1, CN_E2, CN_E3, CN_E4, CN_E5, and CN_E6 of the third to fifth connecting electrodes CNE3, CNE4, and CNE5 can be spaced apart from each other by a distance, so that they are not directly connected to each other and are not electrically connected to each other. Different connecting electrodes CNE can be spaced apart from each other so that they are not electrically connected to each other, and can be insulated from each other by a third insulating layer PAS3 disposed between them.

[0148] The connecting electrode CNE can be classified or divided into a first type of connecting electrode and a second type of connecting electrode based on the type and shape of the electrode RME on which the connecting electrode CNE is disposed. The connecting electrode CNE can include a first type of connecting electrode disposed on an electrode directly electrically connected to the third conductive layer and a second type of connecting electrode disposed on an electrode not directly electrically connected to the third conductive layer. The first connecting electrode CNE1 and the second connecting electrode CNE2 can be first type connecting electrodes, while the third connecting electrode CNE3, the fourth connecting electrode CNE4, and the fifth connecting electrode CNE5 can be second type connecting electrodes.

[0149] Each of the first connecting electrode CNE1 and the second connecting electrode CNE2 may be disposed on only one of the electrodes RME. The first connecting electrode CNE1 and the second connecting electrode CNE2 may have a shape extending in one direction and may electrically connect the electrode RME, which is directly connected to the third conductive layer, to the light-emitting diode ED. On the other hand, the third connecting electrode CNE3, the fourth connecting electrode CNE4, and the fifth connecting electrode CNE5 may each include an extended portion and may be disposed on one or more electrodes. The third connecting electrode CNE3, the fourth connecting electrode CNE4, and the fifth connecting electrode CNE5 may have a partially bent shape and may electrically connect the light-emitting diode ED to each other.

[0150] The first light-emitting diode ED1 and the second light-emitting diode ED2 can be electrically connected to each other via the third connecting electrode CNE3. The electrical signal applied through the first connecting electrode CNE1 can be transmitted to the second light-emitting diode ED2 via the first light-emitting diode ED1 and the third connecting electrode CNE3. Similarly, the second light-emitting diode ED2 and the third light-emitting diode ED3 can be electrically connected to each other via the fourth connecting electrode CNE4, and the third light-emitting diode ED3 and the fourth light-emitting diode ED4 can be electrically connected to each other via the fifth connecting electrode CNE5. The light-emitting diodes ED disposed in the sub-pixel PXn can be connected in series via a second type of connecting electrode.

[0151] The connecting electrode CNE can have a larger width in the portion where contact portions CT1, CT2, CT3, CT4, and CT5 are formed. Contact portions CT1, CT2, CT3, CT4, and CT5 can be formed such that they are not superimposed on the light-emitting diode ED in the second direction DR2. Contact portions CT1, CT2, CT3, CT4, and CT5 can be formed such that they are spaced apart from the area where the light-emitting diode ED is disposed in the first direction DR1. Light can be emitted from both ends of the light-emitting diode ED, and contact portions CT1, CT2, CT3, CT4, and CT5 can be positioned outside the light path. Although contact portions CT1, CT2, CT3, CT4, and CT5 are formed in the emitting region EMA in the figures, the disclosure is not limited thereto. Contact portions CT1, CT2, CT3, CT4, and CT5 can be formed in the sub-region SA where the light-emitting diode ED is not disposed. This can reduce the reflection and refraction of light emitted from the light-emitting diode (ED) at the contact portions CT1, CT2, CT3, CT4, and CT5, and can prevent the ED from sticking together around the contact holes during the manufacturing process of the display device 10 by exposing the contact portions CT1, CT2, CT3, CT4, and CT5 on the upper surface of the electrode lines.

[0152] The connecting electrode CNE may include a conductive material. For example, the connecting electrode CNE may include ITO, IZO, ITZO, aluminum (Al), etc. For example, the connecting electrode CNE may include a transparent conductive material, and light emitted from the light-emitting diode ED can pass through the connecting electrode CNE to travel toward the electrode RME. However, the disclosure is not limited thereto.

[0153] The third insulating layer PAS3 can be disposed on the second connecting electrode layer CNE#2 and the second insulating layer PAS2. The third insulating layer PAS3 can be entirely disposed on the second insulating layer PAS2 to cover the connecting electrode CNE of the second connecting electrode layer CNE#2, and the connecting electrode CNE of the first connecting electrode layer CNE#1 can be disposed on the third insulating layer PAS3. The third insulating layer PAS3 can be disposed on the entire via layer VIA except for the area where the connecting electrode CNE of the first connecting electrode layer CNE#1 is disposed. For example, in addition to the first insulating layer PAS1 and the second insulating layer PAS2, the third insulating layer PAS3 can also be disposed on the first barrier BNL1, the second barrier BNL2, and the third barrier BNL3. The third insulating layer PAS3 can insulate the connecting electrode CNE of the first connecting electrode layer CNE#1 from the connecting electrode CNE of the second connecting electrode layer CNE#2, so that they do not directly contact each other.

[0154] In some embodiments, the third insulating layer PAS3 can be removed from the display device 10. Therefore, the connection electrode CNE can be directly disposed on the second insulating layer PAS2 and can be disposed substantially on the same layer.

[0155] Although not shown in the accompanying drawings, additional insulating layers may be provided on the first connecting electrode layer CNE#1 and the third insulating layer PAS3. These insulating layers can protect the components disposed on the first substrate SUB from the influence of the external environment.

[0156] Each of the first insulating layer PAS1, the second insulating layer PAS2, and the third insulating layer PAS3 described above may comprise an inorganic insulating material or an organic insulating material. However, it will be understood that the disclosure is not limited thereto.

[0157] Figure 9 This is a schematic diagram illustrating a light-emitting element according to an embodiment.

[0158] Reference Figure 9 The light-emitting element ED can be a light-emitting diode (hereinafter also referred to as a light-emitting diode ED). Specifically, the light-emitting diode ED can have dimensions ranging from nanometers to micrometers and can be an inorganic light-emitting diode made of inorganic materials. The light-emitting diode ED can be aligned between two electrodes facing each other by generating polarity by forming an electric field in a specific direction between the two electrodes.

[0159] In embodiments, the light-emitting diode (ED) can have a shape extending in one direction. The ED can have a cylindrical, rod-like, wire-like, tube-like, or similar shape. It will be understood that the shape of the ED is not limited to these. The ED can have various shapes, including polygonal prisms such as cubes, cuboids, or hexagonal prisms, or shapes extending in one direction and having a partially inclined outer surface.

[0160] A light-emitting diode (ED) may include a semiconductor layer doped with an impurity of a certain conductivity type (e.g., p-type or n-type). The semiconductor layer can emit light of a specific wavelength by receiving an electrical signal applied from an external power source. The ED may include a first semiconductor layer 31, a second semiconductor layer 32, an emitting layer 36, an electrode layer 37, and an insulating film 38.

[0161] The first semiconductor layer 31 may be an n-type semiconductor. The first semiconductor layer 31 may include semiconductors having the chemical formula Al. x Ga y In 1-x-y A semiconductor material of type N (0≤x≤1, 0≤y≤1, 0≤x+y≤1). For example, the first semiconductor layer 31 may be doped with an n-type dopant and formed of one or more of AlGaInN, GaN, AlGaN, InGaN, AlN, and InN. The n-type dopant of the first semiconductor layer 31 may be Si, Ge, Se, Sn, etc.

[0162] The second semiconductor layer 32 can be disposed above the first semiconductor layer 31, and an emitter layer 36 is provided between the second semiconductor layer 32 and the first semiconductor layer 31. The second semiconductor layer 32 can be a p-type semiconductor and can include components having the chemical formula Al. x Ga y In 1-x-y The semiconductor material is N (0≤x≤1,0≤y≤1,0≤x+y≤1). For example, the second semiconductor layer 32 can be doped with a p-type dopant and can be formed from one or more of AlGaInN, GaN, AlGaN, InGaN, AlN, and InN. The p-type dopant of the second semiconductor layer 32 can be Mg, Zn, Ca, Ba, etc.

[0163] Although each of the first semiconductor layer 31 and the second semiconductor layer 32 is shown as a signal layer in the figures, the disclosure is not limited thereto. Depending on the material of the emitter layer 36, the first semiconductor layer 31 and the second semiconductor layer 32 may also include a greater number of layers, such as a cladding layer or a tensile strain barrier reduction (TSBR) layer.

[0164] An emitter layer 36 may be disposed between a first semiconductor layer 31 and a second semiconductor layer 32. The emitter layer 36 may comprise a material having a single quantum well structure or a multiple quantum well structure. When the emitter layer 36 comprises a material having a multiple quantum well structure, the structure may comprise quantum layers and well layers stacked alternately on top of each other. In response to an electrical signal applied through the first semiconductor layer 31 and the second semiconductor layer 32, the emitter layer 36 may emit light when electron-hole pairs recombine therein. The emitter layer 36 may comprise materials such as AlGaN and AlGaInN. Specifically, when the emitter layer 36 has a multiple quantum well structure in which quantum layers and well layers are stacked alternately on top of each other, the quantum layers may comprise AlGaN or AlGaInN, and the well layers may comprise materials such as GaN and AlInN.

[0165] The emitting layer 36 may have a structure in which semiconductor materials with large band gaps and semiconductor materials with small band gaps are stacked alternately, and may include group III to group V semiconductor materials depending on the wavelength of the emitted light. Therefore, the light emitted from the emitting layer 36 is not limited to the blue band. In some embodiments, the emitting layer 36 may emit red or green band light.

[0166] Electrode layer 37 may be an ohmic connection electrode. However, it will be understood that the disclosure is not limited thereto. Electrode layer 37 may be a Schottky connection electrode. A light-emitting diode (ED) may include at least one electrode layer 37. A light-emitting diode (ED) may include one or more electrode layers 37. However, it will be understood that the disclosure is not limited thereto. Electrode layer 37 may be removed.

[0167] When the light-emitting diode ED is electrically connected to an electrode or a connecting electrode in the display device 10, the electrode layer 37 can reduce the resistance between the light-emitting diode ED and the electrode or connecting electrode. The electrode layer 37 may include a conductive metal. For example, the electrode layer 37 may include at least one of aluminum (Al), titanium (Ti), indium (In), gold (Au), silver (Ag), ITO, IZO, and ITZO.

[0168] The insulating film 38 may surround the outer surfaces of the aforementioned semiconductor layer and electrode layer. For example, the insulating film 38 may at least surround the outer surface of the emitting layer 36, with both ends of the light-emitting diode ED exposed in the longitudinal direction. In a cross-sectional view, a portion of the upper surface of the insulating film 38 may be rounded, and this portion may be adjacent to at least one end of the light-emitting diode ED.

[0169] The insulating film 38 may include materials with insulating properties such as silicon oxide (SiO2). x ), silicon nitride (SiN) x ), silicon oxynitride (SiO) x N y), aluminum nitride (AlN) x ) and aluminum oxide (AlO x ) materials. Although Figure 9 The insulating film 38 is shown to be formed as a single layer, but the disclosure is not limited thereto. In some embodiments, the insulating film 38 may have a multilayer structure in which multiple layers are stacked on top of each other.

[0170] The insulating film 38 can be used to protect the first semiconductor layer 31, the second semiconductor layer 32, the emitter layer 36, and the electrode layer 37. If the insulating film 38 directly contacts the electrodes through which electrical signals are transmitted to the light-emitting diode (ED), the insulating film 38 can prevent electrical short circuits that may occur in the emitter layer 36. The insulating film 38 can also prevent a decrease in the luminous efficiency of the light-emitting diode (ED).

[0171] The outer surface of the insulating film 38 can be surface-treated. The light-emitting diodes (EDs) can be dispersed in ink, and the ink can be sprayed onto the electrodes. In this case, to prevent the EDs dispersed in the ink from agglomerating, the insulating film 38 can be surface-treated to make it hydrophobic or hydrophilic.

[0172] As described above, in the display device 10 according to the embodiment, the connection electrodes CNE can be classified or divided into connection electrodes of different connection electrode layers CNE#1 and CNE#2 depending on whether the connection electrodes CNE are disposed on the second insulating layer PAS2 or the third insulating layer PAS3. In the embodiment, the connection electrodes disposed on the same connection electrode layers CNE#1 and CNE#2 can make electrical contact with the same side of the two sides of the light-emitting diode ED. Due to this arrangement of the connection electrodes CNE, even if the pattern of the second insulating layer PAS2 and the third insulating layer PAS3 is shifted during the manufacturing process of the display device 10, the pattern of the connection electrodes CNE can also be shifted. Therefore, it has the advantage of being able to cope with misalignment of the overlay pattern.

[0173] Figure 10 This is a schematic plan view showing the arrangement of the connection electrodes and light-emitting diodes of a display device according to an embodiment. Figure 10 The relative arrangement of the electrode RME, the light-emitting diode ED, and the connecting electrode CNE is shown in the emission region EMA of the sub-pixel PXn.

[0174] Reference Figures 3 to 9 as well as Figure 10 The first connecting electrode CNE1, the second connecting electrode CNE2, and the fourth connecting electrode CNE4 can be disposed on the third insulating layer PAS3 as connecting electrodes CNE#1 of the first connecting electrode layer CNE#1, while the third connecting electrode CNE3 and the fifth connecting electrode CNE5 can be disposed between the second insulating layer PAS2 and the third insulating layer PAS3 as connecting electrodes CNE#2 of the second connecting electrode layer CNE#2.

[0175] The location of the connection electrode CNE can be associated with the pattern shape and position of the second insulating layer PAS2 and the third insulating layer PAS3. The second and third insulating layers PAS2 and PAS3 can be formed by integrally disposed on the first insulating layer PAS1 and partially removed to expose one side and the opposite side of each of the light-emitting diodes (EDs). The connection electrode CNE can be disposed in the portion where the second and third insulating layers PAS2 and PAS3 are not disposed, thus exposing the connection electrode CNE so that it can electrically contact one side or the opposite side of each of the light-emitting diodes (EDs).

[0176] In an embodiment, in the display device 10, the connecting electrodes CNE of the same connecting electrode layer CNE#1 or CNE#2 can electrically contact the same side of the two sides of the light-emitting diode ED. The first connecting electrode CNE1, the second connecting electrode CNE2, and the fourth connecting electrode CNE4 of the first connecting electrode layer CNE#1 can electrically contact one side of each of the light-emitting diodes ED, and the third connecting electrode CNE3 and the fifth connecting electrode CNE5 of the second connecting electrode layer CNE#2 can electrically contact the opposite side of each of the light-emitting diodes ED. Specifically, the third connecting electrode CNE3, the fourth connecting electrode CNE4, and the fifth connecting electrode CNE5 can all be arranged across electrodes RME, and can electrically contact only one side and the same side of the opposite side of each of the different light-emitting diodes ED.

[0177] The connecting electrodes CNE of the same connecting electrode layer CNE#1 or CNE#2 can be arranged parallel to each other in the first direction DR1. For example, the first connecting electrode CNE1 can be arranged parallel to the fourth extension CN_E4 of the fourth connecting electrode CNE4 in the first direction DR1, and the second connecting electrode CNE2 can be arranged parallel to the third extension CN_E3 of the fourth connecting electrode CNE4 in the first direction DR1. The first extension CN_E1 and the second extension CN_E2 of the third connecting electrode CNE3 can be arranged side by side with the fifth extension CN_E5 and the sixth extension CN_E6 of the fifth connecting electrode CNE5 in the first direction DR1, respectively.

[0178] During the process of forming the second insulating layer PAS2 and the third insulating layer PAS3, a process of patterning the insulating layer material can be performed, such that one side and the opposite side of each of the light-emitting diodes (EDs) are exposed. The patterning process can be a process of removing the insulating layer material, and the location of the patterning process can be determined based on the overlay design of the mask patterns. The display device 10 can be designed such that the connection electrodes CNE of the same connection electrode layer CNE#1 or CNE#2 electrically contact the same side of each of the two sides of the light-emitting diodes (EDs), and the mask pattern of each of the layers used in the process of forming the second insulating layer PAS2 and the third insulating layer PAS3 can also expose the same side or the opposite side of each of the two sides of the light-emitting diodes (EDs).

[0179] For example, the process of forming the second insulating layer PAS2 can expose opposite sides (or second sides) of each of the light-emitting diodes (EDs), and the process of forming the third insulating layer PAS3 can expose one side of each of the EDs. Before forming the third insulating layer PAS3, one side (or first side) of each of the EDs can be covered or stacked with the material of the second insulating layer PAS2, and during the process of forming the third insulating layer PAS3, that side can be exposed when the material of the second insulating layer PAS2 is removed together. For example, during the process of forming the second insulating layer PAS2, the opposite sides (or second sides) of each of the EDs can be exposed together, and that side of each of the EDs can be exposed together during the process of forming the third insulating layer PAS3.

[0180] In this situation, if the mask pattern used to form the insulating layer is misaligned due to its deviation from the cover design value of the underlying layer, the location of the material that must be removed from the insulating layer will differ from the design value. In the display device 10 according to the embodiment, during the process of forming the insulating layer, the same side of each of the light-emitting diodes (EDs) can be exposed, thus easily compensating for pattern misalignment. If the first side of some of the EDs is not exposed according to the design value due to mask pattern misalignment, the first side of other EDs may also not be exposed. The mask pattern can be re-aligned, or an additional patterning process can be implemented to expose the first side of the EDs as designed.

[0181] Similarly, in the process of forming the connection electrode CNE, which is performed after the process of patterning the insulating layer, the location where the connection electrode CNE is formed can be determined according to the stacking design of the mask pattern. If the second side of the light-emitting diode ED is exposed during the process of forming the second insulating layer PAS2, the connection electrode CNE of the second connection electrode layer CNE#2 can be formed. If the first side of the light-emitting diode ED is exposed during the process of forming the third insulating layer PAS3, the connection electrode CNE of the first connection electrode layer CNE#1 can be formed.

[0182] Furthermore, even if the mask patterns exposing the first or second side of each of the light-emitting diodes (EDs) are misaligned, the process can be performed by shifting the mask patterns forming the first connection electrode layer CNE#1 and the second connection electrode layer CNE#2 by the same amount as the mask patterns themselves. The connection electrodes CNEs that electrically contact the first side of the ED can also be shifted in the same direction by the same amount as the mask patterns exposing the first side of the ED.

[0183] Specifically, each of the third connecting electrode CNE3, the fourth connecting electrode CNE4, and the fifth connecting electrode CNE5 can be positioned across the electrode RME and electrically contact different light-emitting diodes (EDs). The third connecting electrode CNE3, the fourth connecting electrode CNE4, and the fifth connecting electrode CNE5 can electrically contact only one side or only the other side of the two different light-emitting diodes (EDs), thus avoiding the problem that one of the different light-emitting diodes (EDs) only makes electrical contact with the connecting electrode CNE corresponding to one side and not with other connecting electrodes CNE corresponding to the other side. Even if the connecting electrode CNE positioned across the electrode RME shifts during coverage alignment, the first extension portion to the sixth extension portion CN_E1, CN_E2, CN_E3, CN_E4, CN_E5, and CN_E6 of the connecting electrode CNE can also move in the same direction. Therefore, a distance can be maintained from other connecting electrodes CNE or the first extension portion to the sixth extension portion CN_E1, CN_E2, CN_E3, CN_E4, CN_E5, and CN_E6.

[0184] In an embodiment, in the display device 10, the pattern of the insulating layer exposing both sides of the light-emitting diode ED and the arrangement of the connecting electrodes CNE can be designed such that the pattern of the same layer corresponds to the same side of the light-emitting diode ED. During the manufacturing process of the display device 10, misalignment of the overlay design can be addressed by shifting the pattern of the insulating layer and the arrangement of the connecting electrodes CNE in the same direction. Poor contact between the connecting electrodes CNE and the light-emitting diode ED, and short circuits between the connecting electrodes CNE can be prevented.

[0185] As described above, each of the light-emitting diodes (EDs) may include a first semiconductor layer 31 and a second semiconductor layer 32 doped with impurities of different conductivity types, such that one end of the semiconductor layer 31 can be oriented in a specific direction by an electric field. The first end and the second end of each of the EDs can be distinguished based on the location where the first semiconductor layer 31 or the second semiconductor layer 32 is disposed.

[0186] According to an embodiment, the end of the light-emitting diode ED adjacent to the second semiconductor layer 32 can be defined as a first end, and the opposite end of the light-emitting diode ED where the first semiconductor layer 31 is located can be defined as a second end. As described above, the first end of each of the first light-emitting diodes ED1 can be disposed on the first electrode RME1, and the second end of each of the first light-emitting diodes ED1 can be disposed on the second electrode RME2. The first end of each of the third light-emitting diodes ED3 can be disposed on the fifth electrode RME5, and the second end of each of the third light-emitting diodes ED3 can be disposed on the sixth electrode RME6. On the other hand, the first end of each of the second light-emitting diodes ED2 can be disposed on the fourth electrode RME4, and the second end of each of the second light-emitting diodes ED2 can be disposed on the third electrode RME3. The first end of each of the fourth light-emitting diodes ED4 can be disposed on the eighth electrode RME8, and the second end of each of the fourth light-emitting diodes ED4 can be disposed on the seventh electrode RME7. The first ends of the first light-emitting diodes ED1 and ED3 can face one side in the second direction DR2, while the first ends of the second light-emitting diodes ED2 and ED4 can face the opposite side in the second direction DR2. For example, some of the light-emitting diodes (EDs) can be oriented such that the first end of some of the EDs faces the opposite direction to the first end of the other EDs.

[0187] The orientation of the first end of the light-emitting diode (ED) can vary depending on the alignment signal applied to the electrode RME or electrode line. The electrodes RMEs spaced apart from each other in the first direction DR1 can be formed as single electrode lines during the manufacturing process of the display device 10, and the same alignment signal can be applied to the electrode RMEs. For example, the first electrode RME1 and the fifth electrode RME5 can be formed as a single electrode line, and the second electrode RME2 and the sixth electrode RME6 can be formed as a single electrode line. Different alignment signals can be applied to electrode lines adjacent to each other in the second direction DR2. The ED can be arranged by the electric field generated by the alignment signal such that the first end of the ED faces the electrode line or electrode RME. The same alignment signal can be applied to the electrode line formed by the second electrode RME2 and the sixth electrode RME6, and also to the electrode line formed by the third electrode RME3 and the seventh electrode RME7. The alignment signal applied to the electrode line formed by the third electrode RME3 and the seventh electrode RME7 can be different from the alignment signal applied to the electrode line formed by the fourth electrode RME4 and the eighth electrode RME8. Therefore, the first light-emitting diode ED1 disposed on the first electrode RME1 and the second electrode RME2, and the second light-emitting diode ED2 disposed on the third electrode RME3 and the fourth electrode RME4, can be oriented such that the first ends of the first light-emitting diode ED1 and the second light-emitting diode ED2 face opposite directions.

[0188] The first terminal of the first light-emitting diode ED1 can be electrically connected to the first electrode RME1 via the first connecting electrode CNE1. The second terminal of the first light-emitting diode ED1 can be electrically connected to the first terminal of the second light-emitting diode ED2 via the third connecting electrode CNE3. The second terminal of the second light-emitting diode ED2 can be electrically connected to the first terminal of the third light-emitting diode ED3 via the fourth connecting electrode CNE4, and the second terminal of the third light-emitting diode ED3 can be electrically connected to the first terminal of the fourth light-emitting diode ED4. The second terminal of the fourth light-emitting diode ED4 can be electrically connected to the seventh electrode RME7 via the second connecting electrode CNE2. The orientation of the first and second terminals of the light-emitting diodes ED can be defined. The first and second terminals of different light-emitting diodes ED can be electrically connected to each other via the connecting electrode CNE. Light-emitting diodes ED with their first and second terminals electrically connected to each other can form an electrical series connection.

[0189] although Figure 10The illustration shows different light-emitting diodes (LEDs) with their first ends aligned in a consistent manner, but the disclosure is not limited thereto. In some embodiments, the first ends of some LEDs disposed on the same electrode RME may face different directions. Only some of the LEDs may have a forward connection via the connection electrode CNE, while others may not have a forward connection and may not emit light. A detailed description of another (or more) embodiment will be given with reference to it.

[0190] In the following description, display devices according to various embodiments will be described with reference to other accompanying drawings.

[0191] Figure 11 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to an embodiment. Figure 11 The relative arrangement of the electrode RME, the connecting electrode CNE, and the light-emitting diode ED disposed in the sub-pixel PXn of the display device 10_1 is shown.

[0192] Reference Figure 11 In the display device 10_1 according to the embodiment, the third bridging portion CN_B3 of the fifth connecting electrode CNE5_1 can be disposed in the first separation portion ROP1 of the emitting region EMA. The pattern shape of the display device 10_1 can be changed in various ways, as long as the connecting electrodes CNE#1 and CNE#2 are disposed on the same side of each of the light-emitting diodes ED. In the plan view, since the third bridging portion CN_B3 of the fifth connecting electrode CNE5_1 in the display device 10_1 is disposed in the first separation portion ROP1, the third connecting electrode CNE3_1 and the fifth connecting electrode CNE5_1 can have substantially the same pattern.

[0193] Furthermore, the arrangement of the first connecting electrode CNE1_1, the second connecting electrode CNE2_1, and the fourth connecting electrode CNE4_1, which serve as the connecting electrodes of the first connecting electrode layer CNE#1, can be consistent with... Figure 4 The arrangement is basically the same in the embodiments. The second bridging portion CN_B2 of the fourth connecting electrode CNE4_1 can be spaced apart from the third bridging portion CN_B3 of the fifth connecting electrode CNE5_1 in the first separation portion ROP1 along the first direction DR1.

[0194] The third connecting electrode CNE3_1 and the fifth connecting electrode CNE5_1 can be disposed on the same layer as the connecting electrode CNE of the second connecting electrode layer CNE#2. Since the third connecting electrode CNE3_1 and the fifth connecting electrode CNE5_1 are formed using the same process, their positions can be moved in the same direction as the mask pattern shifts. In a plan view, since the third connecting electrode CNE3_1 and the fifth connecting electrode CNE5_1 have the same shape, the first bridging portion CN_B1 and the third bridging portion CN_B3 can be positioned on one side (e.g., the upper side of the extension portion in the first direction DR1). Therefore, the mask pattern of the third connecting electrode CNE3_1 and the fifth connecting electrode CNE5_1 can be shifted in the same direction (not only in the second direction DR2 but also in the first direction DR1). For example, the display device 10_1 can accommodate the shifting of the third connecting electrode CNE3_1 and the fifth connecting electrode CNE5_1 in both the vertical and horizontal directions.

[0195] Figure 12 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to an embodiment. Figure 12 The relative arrangement of the electrode RME, the connecting electrode CNE, and the light-emitting diode ED disposed in the sub-pixel PXn of the display device 10_2 is shown.

[0196] Reference Figure 12 In the display device 10_2 according to the embodiment, the first connecting electrode CNE1_2, the second connecting electrode CNE2_2, and the third connecting electrode CNE3_2 of the first connecting electrode layer CNE#1 can electrically contact the opposite side (or the second side) of the light-emitting diode ED, while the third connecting electrode CNE3_2 and the fifth connecting electrode CNE5_2 of the second connecting electrode layer CNE#2 can electrically contact the first side of the light-emitting diode ED. Figure 4 Compared to the previous embodiment, different electrodes RME can be provided below the connecting electrode CNE, and different electrodes (as electrodes RME on which the first connecting electrode CNE1_2 and the second connecting electrode CNE2_2 (as the first type of connecting electrode) are provided) can be directly electrically connected to the third conductive layer.

[0197] The first connecting electrode CNE1_2 can be disposed on the second electrode RME2 to electrically contact the opposite sides of each of the first light-emitting diodes ED1. The second electrode RME2 can be directly electrically connected to the second conductive pattern CDP2 below the second electrode RME2 through a first electrode contact hole CTD formed in the portion in which the second electrode RME2 overlaps with the third diaphragm BNL3. The second connecting electrode CNE2_2 can be disposed on the eighth electrode RME8 to contact the opposite sides of each of the fourth light-emitting diodes ED4. The eighth electrode RME8 can be directly electrically connected to the second voltage line VL2 below the eighth electrode RME8 through a second electrode contact hole CTS formed in the portion in which the eighth electrode RME8 overlaps with the third diaphragm BNL3. In the display device 10_2, different electrodes can be directly electrically connected to the third conductive layer according to the arrangement of the connecting electrodes CNE.

[0198] The third connecting electrode CNE3_2 can be disposed on the first electrode RME1 and the third electrode RME3, and can electrically contact the first side of the first light-emitting diode ED1 and the first side of the second light-emitting diode ED2. The fourth connecting electrode CNE4_2 can be disposed on the fourth electrode RME4 and the eighth electrode RME8, to electrically contact the second side (or the opposite side) of the second light-emitting diode ED2 and the second side of the third light-emitting diode ED3. The fifth connecting electrode CNE5_2 can be disposed on the fifth electrode RME5 and the seventh electrode RME7, to electrically contact the first side of the third light-emitting diode ED3 and the first side of the fourth light-emitting diode ED4.

[0199] Even if different connecting electrodes CNE electrically contact one side and the opposite side of each of the light-emitting diodes ED, the first end and the second end of each of the light-emitting diodes ED can still electrically contact the same connecting electrode CNE respectively. For example, for the first light-emitting diode ED1, the opposite side disposed on the second electrode RME2 can be the first end, and the first end can electrically contact the first connecting electrode CNE1_2. The second end of the first light-emitting diode ED1 can be disposed on the first electrode RME1, and the first end can face the opposite side in the second direction DR2.

[0200] Similarly, for the second LED ED2, the first terminal can be disposed on the third electrode RME3, and the second terminal can be disposed on the fourth electrode RME4. For the third LED ED3, the first terminal can be disposed on the sixth electrode RME6, and the second terminal can be disposed on the fifth electrode RME5. For the fourth LED ED4, the first terminal can be disposed on the seventh electrode RME7, and the second terminal can be disposed on the eighth electrode RME8.

[0201] Although the side and opposite side of each of the light-emitting diodes (EDs) are determined based on the second direction DR2 in the plan view, the first and second ends of each of the EDs can be set in consideration of the electrical connection with the third conductive layer below each of the EDs. The first end of the first ED1 can be set on the electrode electrically connected to the first transistor T1 (e.g., set on the second electrode RME2 through the first electrode contact hole CTD), while the second end of the fourth ED4 can be set on the electrode electrically connected to the second voltage line VL2 (e.g., set on the eighth electrode RME8 through the second electrode contact hole CTS).

[0202] Considering the connection with the third conductive layer beneath the light-emitting diode (ED), the orientation of the first end of the ED can be determined by an alignment signal applied to the electrode lines during the manufacturing process. In the display device 10_2 according to this embodiment, with Figure 4 Compared to the previous embodiment, the arrangement of the connecting electrodes CNE and the orientation of the first end of the light-emitting diode ED can be changed. In the display device 10_2, even if the connecting electrodes CNE of the connecting electrode layers CNE#1 and CNE#2 are placed in different positions, the orientation of the first end of the light-emitting diode ED can be changed accordingly, thus maintaining the series connection between the light-emitting diodes ED.

[0203] Figure 13 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to an embodiment.

[0204] Reference Figure 13 In the display device 10_3 according to the embodiment, the first bridging portion CN_B1 of the third connecting electrode CNE3_3 can be disposed in the first separation portion ROP1 of the emission region EMA. The display device 10_3 according to this embodiment and the display device 10_3 according to the embodiment of... Figure 12 The difference in the display device of the embodiment may be at least that the third connecting electrode CNE3_3 has a different pattern shape in the plan view. (Refer to the above...) Figure 11 In the plan view, the first bridging portion CN_B1 of the third connecting electrode CNE3_3 can be disposed in the first separating portion ROP1, so the third connecting electrode CNE3_3 and the fifth connecting electrode CNE5_3 can have the same shape. During the process of forming the second connecting electrode layer CNE#2, the mask patterns of the third connecting electrode CNE3_3 and the fifth connecting electrode CNE5_3 can accommodate displacement in the vertical and horizontal directions. The arrangement of the first connecting electrode CNE1_3, the second connecting electrode CNE2_3, and the fourth connecting electrode CNE4_3 as the first connecting electrode layer CNE#1 can be consistent with... Figure 12The arrangement is the same as in the embodiments. Therefore, its detailed description will be omitted.

[0205] Figure 14 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to an embodiment.

[0206] Reference Figure 14 In the display device 10_4 according to an embodiment, the connecting electrode CNE of the second connecting electrode layer CNE#2 can extend in one direction, and the fourth connecting electrode CNE4_4 can be arranged in a shape that partially surrounds at least one connecting electrode CNE of the second connecting electrode layer CNE#2. In this embodiment, in a plan view, the pattern shapes of some of the connecting electrodes CNE can be different, and the connection structures between the connecting electrode CNE and the electrode RME, and between the electrode RME and the third conductive layer, can be different.

[0207] The first connecting electrode CNE1_4 can be disposed on the first electrode RME1 to electrically contact one side of each of the first light-emitting diodes ED1. The first electrode RME1 can be directly electrically connected to the second conductive pattern CDP2 below the first electrode RME1 through the first electrode contact hole CTD. The second connecting electrode CNE2_4 can be disposed on the third electrode RME3 to electrically contact one side of each of the second light-emitting diodes ED2. The third electrode RME3 can be directly electrically connected to the second voltage line VL2 below the third electrode RME3 through the second electrode contact hole CTS.

[0208] The third connecting electrode CNE3_4 can extend along the first direction DR1 and can be disposed on the second electrode RME2 and the sixth electrode RME6. The third connecting electrode CNE3_4 can electrically contact the second side (or the opposite side) of the first light-emitting diode ED1 and the opposite side of the third light-emitting diode ED3. The third connecting electrode CNE3_4 can electrically contact the second electrode RME2 and the sixth electrode RME6 through the third contact portion CT3.

[0209] In the planar diagram, the fourth connecting electrode CNE4_4 can have the same characteristics as... Figure 4The fifth connecting electrode CNE5 has a similar shape. The third extension CN_E3 of the fourth connecting electrode CNE4_4 can be disposed on the fifth electrode RME5, and the fourth extension CN_E4 of the fourth connecting electrode CNE4_4 can be disposed on the seventh electrode RME7. The second bridging portion CN_B2 can be spaced apart from the first separating portion ROP1 in the first direction DR1. The fourth connecting electrode CNE4_4 can electrically contact one side of each of the third light-emitting diodes ED3 and one side of each of the fourth light-emitting diodes ED4. The fourth connecting electrode CNE4_4 can electrically contact the fifth electrode RME5 and the seventh electrode RME7 through the fourth contact portion CT4.

[0210] The fifth connecting electrode CNE5_4 can extend along the first direction DR1 and can be disposed on the fourth electrode RME4 and the eighth electrode RME8. The fifth connecting electrode CNE5_4 can electrically contact the opposite side (or the second side) of the second light-emitting diode ED2 and the opposite side of the fifth light-emitting diode ED5. The fifth connecting electrode CNE5_4 can electrically contact the fourth electrode RME4 and the eighth electrode RME8 through the fifth contact portion CT5.

[0211] The first connecting electrode CNE1_4, the second connecting electrode CNE2_4, the third connecting electrode CNE3_4, and the fifth connecting electrode CNE5_4 can all have a shape extending in the first direction DR1. The first connecting electrode CNE1_4 and the second connecting electrode CNE2_4 can be disposed only on the electrode RME, while the third connecting electrode CNE3_4 and the fifth connecting electrode CNE5_4 can be disposed on the electrode RME. In an embodiment, the length of the first connecting electrode CNE1_4 and the second connecting electrode CNE2_4 extending in the first direction DR1 can be less than the length of the third connecting electrode CNE3_4 and the fifth connecting electrode CNE5_4 extending in the direction DR1.

[0212] In the planar view, even if the pattern shape of the connecting electrode CNE of the second connecting electrode layer CNE#2 is changed, the connecting electrodes CNE of the same connecting electrode layers CNE#1 and CNE#2 can electrically contact the same side of the two sides of the light-emitting diode ED. Specifically, since the third connecting electrode CNE3_4 and the fifth connecting electrode CNE5_4 have a shape that extends in one direction, it is easy to accommodate the displacement of the mask pattern in the second direction DR2.

[0213] Unlike the embodiments described above, the connecting electrode CNE can be arranged regardless of the direction in which the first end of the light-emitting diode ED faces. In the display device 10_4, even among the light-emitting diodes ED with both ends disposed on the same electrode RME, the first end can face different directions.

[0214] Figure 15 It shows the setting Figure 14 A schematic plan view of the arrangement of light-emitting diode elements on different electrode groups in a display device.

[0215] Reference Figure 14 and Figure 15 Light-emitting diodes (EDs) (e.g., ED1, ED2, ED3, and ED4) can be classified or divided into different types of LEDs based on the direction in which their first terminals face. For example, a first LED ED1 may include a first type LED ED1_A and a second type LED ED1_B. The first type LED ED1_A has a first terminal disposed on a first electrode RME1 to electrically contact a first connecting electrode CNE1_4, and the second type LED ED1_B has a first terminal disposed on a second electrode RME2 to electrically contact a third connecting electrode CNE3_4. The first terminal of the first type LED ED1_A may face a direction opposite to that of the first terminal of the second type LED ED1_B.

[0216] Similarly, the second light-emitting diode ED2 may include a first type light-emitting diode ED2_A and a second type light-emitting diode ED2_B. The first type light-emitting diode ED2_A has a first end disposed on the fourth electrode RME4 to electrically contact the fifth connecting electrode CNE5_4, and the second type light-emitting diode ED2_B has a first end disposed on the third electrode RME3 to electrically contact the second connecting electrode CNE2_4. The third light-emitting diode ED3 may include a first type light-emitting diode ED3_A and a second type light-emitting diode ED3_B. The first type light-emitting diode ED3_A has a first end disposed on the sixth electrode RME6 to electrically contact the third connecting electrode CNE3_4, and the second type light-emitting diode ED3_B has a first end disposed on the fifth electrode RME5 to electrically contact the fourth connecting electrode CNE4_4. The fourth light-emitting diode ED4 may include a first type light-emitting diode ED4_A and a second type light-emitting diode ED4_B. The first type light-emitting diode ED4_A has a first end disposed on the seventh electrode RME7 to electrically contact the fourth connecting electrode CNE4_4, and the second type light-emitting diode ED4_B has a first end disposed on the eighth electrode RME8 to electrically contact the fifth connecting electrode CNE5_4.

[0217] The first terminal of the first type LED ED1_A of the first LED ED1 can be electrically connected to the first electrode RME1 via the first connecting electrode CNE1_4, and the second terminal of the first type LED ED1_A of the first LED ED1 can be electrically connected to the first type LED ED3_A of the third LED ED3 via the third connecting electrode CNE3_4. The second terminal of the first type LED ED3_A of the third LED ED3 can be electrically connected to the first terminal of the first type LED ED4_A of the fourth LED ED4 via the fourth connecting electrode CNE4_4. The second terminal of the first type LED ED4_A of the fourth LED ED4 can be electrically connected to the first terminal of the first type LED ED2_A of the second LED ED2 via the fifth connecting electrode CNE5_4. The first type LED ED2_A of the second LED ED2 can be electrically connected to the third electrode RME3 via the second connecting electrode CNE2_4.

[0218] The first type of light-emitting diodes (LEDs) ED1_A, ED2_A, ED3_A, and ED4_A of the first to fourth LEDs ED1, ED2, ED3, and ED4 can be connected in series with each other via a forward connection, and each LED can emit light. On the other hand, the second type of LEDs ED1_B, ED2_B, ED3_B, and ED4_B of the LEDs ED1, ED2, ED3, and ED4 can be connected with each other in the opposite direction to the first type of LEDs ED1_A, ED2_A, ED3_A, and ED4_A. For example, the second terminal of the second type of LED ED1_B in the first LED ED1 can be electrically connected to the first electrode RME1 via the first connecting electrode CNE1_4 to form a reverse connection. For example, the second type of LEDs ED1_B, ED2_B, ED3_B, and ED4_B of the LEDs ED1, ED2, ED3, and ED4 may not emit light.

[0219] In the display device 10_4 according to this embodiment, some of the light-emitting diodes (LEDs) ED (e.g., ED1, ED2, ED3, and ED4) can still emit light even if their first ends are not oriented in a consistent direction. During the manufacturing process of the display device 10_4, the LEDs ED can be oriented by an electric field generated by the electrode lines, such that their ends face a specific direction. The LEDs ED may not be oriented in the desired direction, and some of them may be oriented in the opposite direction. Even if the orientations of the LEDs ED are inconsistent, at least some of the LEDs ED in the display device 10_4 can still emit light by means of the arrangement and connection of the connecting electrodes CNE. Specifically, the only condition for each sub-pixel PXn of the display device 10_4 to emit light is that both ends of the LED ED are disposed on the electrode RME, regardless of the orientation of the LED ED.

[0220] Figure 16 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to an embodiment.

[0221] Reference Figure 16 In the display device 10_5 according to the embodiment, some contact portions can be removed, and the connection structure between the connecting electrode CNE and the electrode RME can be changed. This embodiment and... Figure 14 The difference in the embodiments may be at least in the arrangement of the contact portions CT1, CT2 and CT4.

[0222] The connecting electrode CNE may not be electrically connected to any of the other electrodes RME except for the electrode RME from which electrical signals are transmitted from the third conductive layer below it. The light-emitting diode ED may be electrically connected to the electrode electrically connected to the third conductive layer (e.g., electrically connected to the first electrode RME1 and the third electrode RME3), and may not be electrically connected to some of the other electrodes RME.

[0223] The first connecting electrode CNE1_5 and the second connecting electrode CNE2_5 can respectively make electrical contact with the first electrode RME1 and the third electrode RME3 through the first contact portion CT1 and the second contact portion CT2. The first light-emitting diode ED1 and the second light-emitting diode ED2 can respectively be electrically connected to the first electrode RME1 and the third electrode RME3 through the first connecting electrode CNE1_5 and the second connecting electrode CNE2_5.

[0224] The third connecting electrode CNE3_5 can be positioned across the second electrode RME2 and the sixth electrode RME6, and can electrically contact only the second electrode RME2 via the third contact portion CT3. The fifth connecting electrode CNE5_5 can be positioned across the fourth electrode RME4 and the eighth electrode RME8, and can electrically contact only the fourth electrode RME4 via the fifth contact portion CT5. On the other hand, the third extension portion CN_E3 and the fourth extension portion CN_E4 of the fourth connecting electrode CNE4_5 can be positioned on the fifth electrode RME5 and the seventh electrode RME7 respectively, but can be left uncontacted. The second bridging portion CN_B2 of the fourth connecting electrode CNE4_5 can be positioned on the sixth electrode RME6 and the eighth electrode RME8, and can electrically contact both the sixth electrode RME6 and the eighth electrode RME8 via the fourth contact portion CT4.

[0225] The fifth electrode RME5 and the seventh electrode RME7 may not be electrically connected to the third conductive layer beneath them and the connecting electrode CNE. The fifth electrode RME5 and the seventh electrode RME7 may be electrodes in the sub-pixel PXn that are not electrically connected to the light-emitting diode ED but remain in a floating state. Although the light-emitting diode ED is not electrically connected to the fifth electrode RME5 or the seventh electrode RME7, they can be electrically connected to each other in series via the connecting electrode CNE.

[0226] Figure 17 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to another embodiment.

[0227] Reference Figure 17 In the display device 10_6, the contact portions CT1, CT2, CT3, CT4, and CT5 of its electrical connection electrode RME and connection electrode CNE can be formed at different locations. In an embodiment, the connection electrode CNE of the display device 10_6 can be arranged across the emission region EMA and the sub-region SA, and the contact portions CT1, CT2, CT3, CT4, and CT5 can be positioned within the sub-region SA. This embodiment is similar to... Figure 4 The differences in the embodiments may be at least in the positions of the contact portions CT1, CT2, CT3, CT4 and CT5 and the shape of the connecting electrode CNE.

[0228] The first connecting electrode CNE1_6 and the second connecting electrode CNE2_6 can extend along the first direction DR1 and can extend from the emission region EMA to the second separation portion ROP2 of the sub-region SA. The first connecting electrode CNE1_6 can electrically contact the first electrode RME1 through the first contact portion CT1 located in the sub-region SA of the sub-pixel PXn, and the second connecting electrode CNE2_6 can contact the seventh electrode RME7 through the second contact portion CT2 located in the sub-region SA of the other sub-pixel PXn.

[0229] The first extension portion CN_E1 and the second extension portion CN_E2 of the third connecting electrode CNE3_6 can extend from the emission region EMA to the second separation portion ROP2 of the sub-region SA in the first direction DR1, and the first bridging portion CN_B1 of the third connecting electrode CNE3_6 can also be disposed in the sub-region SA. The third connecting electrode CNE3_6 can contact the second electrode RME2 and the fourth electrode RME4 through the third contact portion CT3 located in the sub-region SA.

[0230] The third extension CN_E3 and the fourth extension CN_E4 of the fourth connecting electrode CNE4_6 can extend further from the emission region EMA to the second separation portion ROP2 of the sub-region SA in the first direction DR1. The fourth connecting electrode CNE4_6 can electrically contact the third electrode RME3 and the fifth electrode RME5 through the fourth contact portion CT4 located in the sub-region SA.

[0231] The fifth extension portion CN_E5 and the sixth extension portion CN_E6 of the fifth connecting electrode CNE5_6 can extend further from the emitter region EMA to the second separation portion ROP2 of the sub-region SA in the first direction DR1, and the third bridging portion CN_B3 of the fifth connecting electrode CNE5_6 can also be disposed in the sub-region SA. The fifth connecting electrode CNE5_6 can electrically contact the sixth electrode RME6 and the eighth electrode RME8 through the fifth contact portion CT5 located in the sub-region SA.

[0232] The second insulating layer PAS2 can be integrally disposed in the sub-region SA, excluding the second separation portion ROP2, and the third insulating layer PAS3 can be integrally disposed in the sub-region SA, regardless of the second separation portion ROP2. Figure 4In different embodiments, contact portions CT1, CT2, CT3, CT4, and CT5 can be disposed in sub-region SA and can pass through the insulating layer disposed on the first insulating layer PAS1. For example, the first contact portion CT1, the second contact portion CT2, and the fourth contact portion CT4 can pass through the second insulating layer PAS2 and the third insulating layer PAS3 in addition to the first insulating layer PAS1, and the third contact portion CT3 and the fifth contact portion CT5 can pass through the first insulating layer PAS1 and the second insulating layer PAS2.

[0233] Contact portions CT1, CT2, CT3, CT4, and CT5 can be formed in a sub-region SA outside the emitting region EMA, thus preventing light emitted from the light-emitting diode ED from being refracted at contact portions CT1, CT2, CT3, CT4, and CT5 and therefore unable to escape. Furthermore, the manufacturing process of the display device 10_6 can prevent the light-emitting diode ED from adhering to the contact portions CT1, CT2, CT3, CT4, and CT5 on the upper surface of the exposed electrode RME.

[0234] Figure 18 This is a schematic plan view showing the relative arrangement of electrodes and connecting electrodes disposed in a sub-pixel of a display device according to an embodiment. Figure 19 It is along Figure 18 A schematic cross-sectional view taken from line Q8-Q8'.

[0235] Reference Figure 18 and Figure 19 In the display device 10_7 according to the embodiment, the electrode RME may not be classified or divided into different electrode groups, but may extend in the emission region EMA along the first direction DR1. The display device 10_7 according to this embodiment and the display device 10_7 according to the embodiment of the present invention are similar in that they are different ... Figure 4 The differences in the display devices of the embodiments may lie at least in that the electrodes RME have different shapes. In the following description of the display devices 10_7, the focus will be on the differences, and repeated descriptions will be omitted.

[0236] Electrode RMEs can extend along the first direction DR1 and can be positioned across sub-regions SA and emitting regions EMA. Each electrode RME can extend from the sub-region SA of sub-pixel PXn to the sub-region SA of another sub-pixel PXn adjacent to sub-pixel PXn along the first direction DR1. In each sub-pixel PXn, a first separation portion ROP1 can be removed from the emitting region EMA, and electrode RMEs can be positioned between second separation portions ROP2 located in the respective sub-regions SA. The electrode RME of sub-pixel PXn can be spaced apart from the electrode RME of another sub-pixel PXn adjacent to that sub-pixel PXn along the first direction DR1 relative to the second separation portions ROP2.

[0237] The first electrode RME1_7, the second electrode RME2_7, the third electrode RME3_7, and the fourth electrode RME4_7 can be arranged sequentially and spaced apart from each other in the second direction DR2. The first electrode RME1_7 can be disposed on the first sub-dike BNL_A1 and the second sub-dike BNL_B1 located on the left side of the first dike BNL1, and the second electrode RME2_7 can be disposed on one side of the first dike BNL1. The third electrode RME3_7 can be disposed on the opposite side of the dike sections BP1 and BP2 of the first dike BNL1, and the fourth electrode RME4_7 can be disposed on the first sub-dike BNL_A2 and the second sub-dike BNL_B2 located on the right side of the first dike BNL1.

[0238] Based on whether the light-emitting diode (LED) ED is disposed on one side between the first dam BNL1 and the second dam BNL2, and whether the two sides of the LED ED are electrically connected to the connecting electrode CNE, LEDs can be classified or divided into different types of LEDs ED. A first LED ED1 can be disposed between the first dam BNL1 and a first sub-dam BNL_A1 disposed to the left of the first dam BNL1. The two sides of the first LED ED1 can be disposed on the first electrode RME1_7 and the second electrode RME2_7, and can respectively electrically contact the first connecting electrode CNE1_7 and the third connecting electrode CNE3_7. A second LED ED2 can be disposed between the first dam BNL1 and a first sub-dam BNL_A2 disposed to the right of the first dam BNL1. The two sides of the second LED ED2 can respectively be disposed on the third electrode RME3_7 and the fourth electrode RME4_7, and can respectively electrically contact the fourth connecting electrode CNE4_7 and the third connecting electrode CNE3_7.

[0239] The third light-emitting diode ED3 can be disposed between the first dam BNL1 and the second sub-dam BNL_B1 disposed to the left of the first dam BNL1. The two sides of the third light-emitting diode ED3 can be respectively disposed on the first electrode RME1_7 and the second electrode RME2_7, and the two sides can respectively make electrical contact with the fourth connecting electrode CNE4_7 and the fifth connecting electrode CNE5_7. The fourth light-emitting diode ED4 can be disposed between the first dam BNL1 and the second sub-dam BNL_B2 disposed to the right of the first dam BNL1. The two sides of the fourth light-emitting diode ED4 can be respectively disposed on the third electrode RME3_7 and the fourth electrode RME4_7, and the two sides can respectively make electrical contact with the second connecting electrode CNE2_7 and the fifth connecting electrode CNE5_7.

[0240] The first connecting electrode CNE1_7 can be electrically connected to the first electrode RME1_7 via the first contact portion CT1, and the second connecting electrode CNE2_7 can be electrically connected to the third electrode RME3_7 via the second contact portion CT2. On the other hand, other connecting electrodes CNE (e.g., the third connecting electrode CNE3_7, the fourth connecting electrode CNE4_7, and the fifth connecting electrode CNE5_7) can be electrically connected only to the light-emitting diode ED without making contact with the other electrodes RME. Therefore, the second electrode RME2 and the fourth electrode RME4 can remain in a floating state without being electrically connected to the third conductive layer and the connecting electrode CNE below them.

[0241] The display device 10_7 may further include a fifth light-emitting diode ED5 having two sides of a non-electrically contacting connection electrode CNE. The two sides of the fifth light-emitting diode ED5 may be disposed on the first electrode RME1_7 and the second electrode RME2_7 or the third electrode RME3_7 and the fourth electrode RME4_7, and may be covered by the second insulating layer PAS2 and the third insulating layer PAS3. As described above, the arrangement of the connection electrode CNE can be determined according to the position of the exposed sides of the light-emitting diode ED in the pattern without the second insulating layer PAS2 and the third insulating layer PAS3. In order to connect the first light-emitting diode ED1 and the second light-emitting diode ED2 disposed on the upper side of the center of the emission region EMA with the third light-emitting diode ED3 and the fourth light-emitting diode ED4 disposed on the lower side of the center of the emission region EMA in series and separate them from each other, the second insulating layer PAS2 and the third insulating layer PAS3 may cover the first insulating layer PAS1 at the center of the emission region EMA or be superimposed on the first insulating layer PAS1.

[0242] However, since the electrode RME is also located at the center of the emitting region EMA, some of the light-emitting diodes ED can be disposed therein. Because both sides of such light-emitting diodes ED (e.g., the fifth light-emitting diode ED5) are covered by the second insulating layer PAS2 and the third insulating layer PAS3, they can be disposed without electrical contact with the connecting electrode CNE. The display device 10_7 according to the embodiment may also include a fifth light-emitting diode ED5, which is disposed in the emitting region EMA but does not emit light because it is not electrically contacted with the connecting electrode CNE on both sides.

[0243] In the display device 10_7 according to the embodiment, since the electrodes RME are not classified or divided into different electrode groups, it has the advantage that the process of separating electrode lines in the emission region EMA can be omitted.

[0244] Figure 20 It is shown Figure 18 A schematic plan view of an example display device.

[0245] Reference Figure 18 and Figure 20 In the display device 10_7 according to the embodiment, electrodes RME1_7, RME2_7, RME3_7, and RME4_7 can be continuous within the emission region EMA and can be electrically connected to the connecting electrodes respectively. Figure 20 In the display device 10_7, the second electrode RME2_7 and the fourth electrode RME4_7 can also be electrically connected to the fifth connecting electrode CNE5_7 and the third connecting electrode CNE3_7, so they do not need to be floated.

[0246] The first electrode RME1_7 can be electrically connected to the first connecting electrode CNE1_7 via the first contact portion CT1, and the third electrode RME3_7 can be electrically connected to the second connecting electrode CNE2_7 via the second contact portion CT2. The second electrode RME2_7 can be electrically connected to the fifth connecting electrode CNE5_7 via the fifth contact portion CT5, and the fourth electrode RME4_7 can be electrically connected to the third connecting electrode CNE3_7 via the third contact portion CT3. Although the second electrode RME2_7 and the fourth electrode RME4_7 are electrically connected to different connecting electrodes (e.g., the third connecting electrode CNE3_7 and the fifth connecting electrode CNE5_7), the disclosure is not limited thereto. Since the third connecting electrode CNE3_7 and the fifth connecting electrode CNE5_7 can be positioned across the second electrode RME2_7 and the fourth electrode RME4_7 respectively, the second electrode RME2_7 and the fourth electrode RME4_7 can be connected together to one of the third connecting electrode CNE3_7 and the fifth connecting electrode CNE5_7.

[0247] For example, the third connecting electrode CNE3_7 can be electrically connected to the second electrode RME2_7 and the fourth electrode RME4_7 via the third contact portion CT3, while the fifth connecting electrode CNE5_7 may not be electrically connected to the electrodes. Optionally, the fifth connecting electrode CNE5_7 can be electrically connected to the second electrode RME2_7 and the fourth electrode RME4_7 via the fifth contact portion CT5, while the third connecting electrode CNE3_7 may not have a connection structure with the electrodes.

[0248] In this embodiment, the first separation portion ROP1 may not be formed in each sub-pixel PXn, and the electrode RME may not be separated from other electrodes in the first direction DR1, while being electrically connected to each other via the connecting electrode CNE. In this way, interference from electrical signals applied to the underlying conductive layer can be prevented, or parasitic capacitances formed with other electrodes due to the electrodes remaining floating in each sub-pixel PXn can be prevented.

[0249] Figure 21 This is a schematic plan view illustrating sub-pixels of a display device according to an embodiment. Figure 22It shows the setting Figure 21 A schematic plan view of the arrangement of electrodes in sub-pixels in a display device.

[0250] Reference Figure 21 and Figure 22 In the display device 10_8, the electrode RME can have a partially curved shape. Because the electrode RME has a curved shape, the distance between the electrode RME and other electrodes RME spaced apart from it in the second direction DR2 can vary depending on the position of the electrode RME, and the light-emitting diode ED can be concentrated at a specific location. The display device 10_8 according to this embodiment and the display device according to... Figure 16 The differences in the display device of the embodiments may lie at least in that the electrodes RME have different shapes. The shape of the electrodes RME will be described in detail below, and repeated descriptions will be omitted.

[0251] In the electrodes RME, the electrodes on both sides of the emission region EMA in the second direction DR2 (e.g., the first electrode RME1_8, the fourth electrode RME4_8, the fifth electrode RME5_8, and the eighth electrode RME8_8) may have a partially curved shape. On the other hand, the second electrode RME2_8, the third electrode RME3_8, the sixth electrode RME6_8, and the seventh electrode RME7_8 may have a shape that extends in one direction.

[0252] The first electrode RME1_8 may extend in the first direction DR1 and may include a portion disposed on the left side of the first sub-dike BNL_A1. The first electrode RME1_8 may also include a portion extending in the first direction DR1 and a portion electrically connected to that portion, bent in the second direction DR2, and bent again in the first direction DR1. For example, the first electrode RME1_8 may include a first electrode portion extending in the first direction DR1 and disposed on the first sub-dike BNL_A1, a second electrode portion electrically connected to the upper side of the first electrode portion and extending to the second separation portion ROP2 of the sub-region SA, and a third electrode portion electrically connected to the lower side of the first electrode portion and extending to the first separation portion ROP1 of the emission region EMA.

[0253] The first electrode portion of the first electrode RME1_8 may be spaced apart from and facing the second electrode RME2_8 in the second direction DR2. The second electrode portion may extend beyond the portion of the third embankment BNL3 extending in the second direction DR2 to the second separation portion ROP2 of the sub-region SA. The second electrode portion may have a shape that bends outward from one side of the first electrode portion as one side in the second direction DR2 and bends again in the first direction DR1. The second electrode portion of the first electrode RME1_8 may be electrically connected to the third conductive layer below it through the first electrode contact hole CTD. The third electrode portion may be provided up to the first separation portion ROP1 of the emission region EMA. The third electrode portion may also have a shape that bends outward from the other side of the first electrode portion as one side in the second direction DR2 and bends again in the first direction DR1. Different electrode portions of the first electrode RME1_8 may have different distances from their adjacent electrodes in the second direction DR2. The distance between the first electrode portion and another electrode RME may be less than the distance between the other electrode RME and the portion of the second or third electrode portion extending in the first direction DR1. The electric field generated on the electrodes RME that are spaced apart from each other along the second direction DR2 can induce or guide the light-emitting diodes ED, causing them to concentrate on the first electrode portion of the first electrode RME1_8.

[0254] Except for the portion of the second electrode portion of the first electrode RME1_8 that overlaps with the first electrode contact hole CTD, the fourth electrode RME4_8 may have a structure symmetrical to the structure of the first electrode RME1_8. The fourth electrode RME4_8 may have a structure symmetrical to the structure of the first electrode RME1_8 based on a virtual line extending in the first direction DR1. Similarly, the fifth electrode RME5_8 and the eighth electrode RME8_8 may also have structures symmetrical to the structures of the first electrode RME1_8 and the fourth electrode RME4_8, respectively, based on virtual lines extending in the second direction DR2. Except for the portion of the second electrode portion of the first electrode RME1_8 that overlaps with the first electrode contact hole CTD, the fifth electrode RME5_8 may have a structure symmetrical to the structure of the first electrode RME1_8.

[0255] The first electrode portion of each of the first electrode RME1_8, fourth electrode RME4_8, fifth electrode RME5_8, and eighth electrode RME8_8 disposed on the second embankment BNL2 can be disposed relatively adjacent to other electrodes RME spaced apart therefrom on the second direction DR2. The electric field generated on the electrodes RME spaced apart from each other along the second direction DR2 can be relatively strong on the first electrode portion of each of the first electrodes RME1_8, fourth electrode RME4_8, fifth electrode RME5_8, and eighth electrode RME8_8. Therefore, one side of each of the light-emitting diodes ED can be disposed on the first electrode portion. Specifically, the third electrode portion of each of the first electrode RME1_8, fourth electrode RME4_8, fifth electrode RME5_8, and eighth electrode RME8_8 can have a greater distance from other electrodes RME spaced apart therefrom on the second direction DR2. The third electrode portion can be adjacent to the first separation portion ROP1 in which the electrodes RME are separated from each other, and the light-emitting diodes ED can be disposed almost entirely elsewhere. Therefore, it is possible to prevent the light-emitting diodes (EDs) disposed in the first separation section ROP1 from being moved to another location and retained as foreign matter during the process of separating the electrodes from each other in the first separation section ROP1.

[0256] Each of the third connecting electrode CNE3_8 and the fifth connecting electrode CNE5_8 may extend in the first direction DR1 and may also include a portion that bends in the second direction DR2 to correspond to a third electrode portion of some electrode RME. Each of the third connecting electrode CNE3_8 and the fifth connecting electrode CNE5_8 may have a generally extending shape in the first direction DR1 and may include a bent portion protruding from the central portion of the emission region EMA toward one or opposite side in the second direction DR2. However, it will be understood that the disclosure is not limited thereto. The third connecting electrode CNE3_8 and the fifth connecting electrode CNE5_8 may have a shape that extends in the first direction DR1 and may include a bent portion protruding from the central portion of the emission region EMA toward one or opposite side in the second direction DR2. Figure 15 The shape extending in the direction of the embodiment.

[0257] Within the spirit and scope of the disclosure, the first connecting electrode CNE1_8, the second connecting electrode CNE2_8, and the fourth connecting electrode CNE4_8, as well as the connecting electrodes of the above embodiments, may have substantially the same or similar structures and / or functions or different structures and / or functions.

[0258] In concluding this detailed description, those skilled in the art will understand that many variations and modifications can be made to the embodiments without substantially departing from the principles disclosed. Therefore, the disclosed embodiments are used in a general and descriptive sense only and not for limiting purposes.

Claims

1. A display device, the display device comprising: The first electrode group includes a plurality of electrodes extending in a first direction and spaced apart from each other in a second direction intersecting the first direction; The second electrode group is spaced apart from the first electrode group in the first direction and includes a plurality of electrodes; Multiple light-emitting elements are disposed on the multiple electrodes of the first electrode group and the second electrode group, which are spaced apart from each other in the second direction, and have a shape extending in the second direction; as well as Multiple connecting electrodes are disposed on at least some of the electrodes in the first electrode group and the second electrode group, electrically contacting the multiple light-emitting elements, and spaced apart from each other in the second direction, wherein... The plurality of connecting electrodes includes: A first connecting electrode is disposed on one of the plurality of electrodes in the first electrode group; The second connecting electrode is disposed on one of the plurality of electrodes in the second electrode group; A third connecting electrode is disposed on one or more of the plurality of electrodes in the first electrode group; A fourth connecting electrode is disposed on another electrode of the plurality of electrodes in the first electrode group and another electrode of the plurality of electrodes in the second electrode group; and The fifth connecting electrode is disposed on one or more of the plurality of electrodes in the second electrode group. The first connecting electrode is spaced apart from a portion of the fourth connecting electrode on the second electrode group in the first direction. The second connecting electrode is spaced apart from another portion of the fourth connecting electrode disposed on the first electrode group in the first direction, and The portion of the third connecting electrode disposed on the plurality of electrodes of the first electrode group is spaced apart from the portion of the fifth connecting electrode disposed on the plurality of electrodes of the second electrode group in the first direction.

2. The display device according to claim 1, wherein, The first connecting electrode makes electrical contact with one of the plurality of electrodes in the first electrode group, and The second connecting electrode makes electrical contact with one of the plurality of electrodes in the second electrode group.

3. The display device according to claim 1, wherein, The first electrode group includes: a first electrode; a second electrode spaced apart from the first electrode in the second direction; a third electrode spaced apart from the second electrode in the second direction; and a fourth electrode spaced apart from the third electrode in the second direction. The second electrode group includes: a fifth electrode spaced apart from the first electrode in the first direction; a sixth electrode spaced apart from the second electrode in the first direction; a seventh electrode spaced apart from the third electrode in the first direction; and an eighth electrode spaced apart from the fourth electrode in the first direction. The plurality of light-emitting elements include: a first light-emitting element disposed on the first electrode and the second electrode; a second light-emitting element disposed on the third electrode and the fourth electrode; a third light-emitting element disposed on the fifth electrode and the sixth electrode; and a fourth light-emitting element disposed on the seventh electrode and the eighth electrode.

4. The display device according to claim 3, wherein, The first connecting electrode is disposed on the first electrode. The second connecting electrode is disposed on the seventh electrode. The third connecting electrode includes: a first extension portion disposed on the second electrode; a second extension portion disposed on the fourth electrode; and a first bridging portion electrically connecting the first extension portion and the second extension portion. The fourth connecting electrode includes: a third extension portion disposed on the third electrode; a fourth extension portion disposed on the fifth electrode; and a second bridging portion electrically connecting the third extension portion and the fourth extension portion. The fifth connecting electrode includes: a fifth extension portion disposed on the sixth electrode; a sixth extension portion disposed on the eighth electrode; and a third bridging portion electrically connecting the fifth extension portion and the sixth extension portion.

5. The display device according to claim 4, wherein, Each of the first connecting electrode, the second connecting electrode, and the fourth connecting electrode electrically contacts a first side of the plurality of light-emitting elements in the second direction, and Each of the third connecting electrode and the fifth connecting electrode is electrically connected to the second side of the plurality of light-emitting elements in the second direction.

6. The display device according to claim 4, wherein, Each of the plurality of light-emitting elements includes: a first semiconductor layer disposed at a first end of each of the plurality of light-emitting elements; a second semiconductor layer disposed at a second end of each of the plurality of light-emitting elements; and an emitting layer disposed between the first semiconductor layer and the second semiconductor layer. The first light-emitting element and the third light-emitting element are oriented such that the first end of the first light-emitting element and the first end of the third light-emitting element face the second direction, and The second light-emitting element and the fourth light-emitting element are oriented such that the first end of the second light-emitting element and the first end of the fourth light-emitting element face a direction opposite to the second direction.

7. The display device according to claim 4, wherein, The second bridging portion and the third bridging portion are spaced apart from each other in the first separation portion between the first electrode group and the second electrode group, and The first bridging portion is spaced apart from the first separating portion in the first direction.

8. The display device according to claim 3, wherein, The first connecting electrode is disposed on the second electrode. The second connecting electrode is disposed on the eighth electrode. The third connecting electrode includes: a first extension portion disposed on the first electrode; a second extension portion disposed on the third electrode; and a first bridging portion electrically connecting the first extension portion and the second extension portion. The fourth connecting electrode includes: a third extension portion disposed on the fourth electrode; a fourth extension portion disposed on the sixth electrode; and a second bridging portion electrically connecting the third extension portion and the fourth extension portion. The fifth connecting electrode includes: a fifth extension portion disposed on the fifth electrode; a sixth extension portion disposed on the seventh electrode; and a third bridging portion electrically connecting the fifth extension portion and the sixth extension portion.

9. The display device according to claim 8, wherein, Each of the first connecting electrode, the second connecting electrode, and the fourth connecting electrode electrically contacts the second side of the plurality of light-emitting elements in the second direction, and Each of the third and fifth connecting electrodes is electrically connected to the first side of the plurality of light-emitting elements in the second direction.

10. The display device according to claim 8, wherein, Each of the plurality of light-emitting elements includes: a first semiconductor layer disposed at a first end of each of the plurality of light-emitting elements; a second semiconductor layer disposed at a second end of each of the plurality of light-emitting elements; and an emitting layer disposed between the first semiconductor layer and the second semiconductor layer. The first light-emitting element and the third light-emitting element are oriented such that the first end of the first light-emitting element and the first end of the third light-emitting element face a direction opposite to the second direction, and The second light-emitting element and the fourth light-emitting element are oriented such that the first end of the second light-emitting element and the first end of the fourth light-emitting element face the second direction.

11. The display device according to claim 8, wherein, The first bridging portion and the second bridging portion are spaced apart from each other in the first separation portion between the first electrode group and the second electrode group, and The third bridging portion is spaced apart from the first separating portion in the first direction.

12. The display device according to claim 1, further comprising: A first insulating layer is disposed on the plurality of electrodes of the first electrode group and the second electrode group; A second insulating layer is disposed on the plurality of light-emitting elements and exposes a first side and a second side of each of the plurality of light-emitting elements in the second direction; as well as A third insulating layer is disposed on the second insulating layer and exposes the first side of each of the plurality of light-emitting elements. The plurality of light-emitting elements are disposed between the first insulating layer and the second insulating layer.

13. The display device according to claim 12, wherein, The first connecting electrode, the second connecting electrode, and the fourth connecting electrode are disposed on the third insulating layer and are in electrical contact with the first side of each of the plurality of light-emitting elements. The third and fifth connecting electrodes are disposed on the second insulating layer and are in electrical contact with the second side of each of the plurality of light-emitting elements. The third insulating layer is stacked with the third connecting electrode and the fifth connecting electrode.

14. A display device, the display device comprising: A first electrode group includes a plurality of electrodes, the plurality of electrodes including: a first electrode extending in a first direction; a second electrode spaced apart from the first electrode in a second direction; a third electrode spaced apart from the second electrode in the second direction; and a fourth electrode spaced apart from the third electrode in the second direction; The second electrode group includes: a fifth electrode spaced apart from the first electrode in the first direction; a sixth electrode spaced apart from the second electrode in the first direction; a seventh electrode spaced apart from the third electrode in the first direction; and an eighth electrode spaced apart from the fourth electrode in the first direction. A plurality of light-emitting elements are disposed on the plurality of electrodes spaced apart from each other in the second direction and extend in the second direction; and Multiple connecting electrodes are disposed on at least some of the multiple electrodes, electrically contacting the multiple light-emitting elements, and spaced apart from each other in the second direction. The plurality of connecting electrodes include: a first connecting electrode disposed on the first electrode; a second connecting electrode disposed on the third electrode; a third connecting electrode disposed on the second electrode and the sixth electrode; a fourth connecting electrode disposed on the fifth electrode and the seventh electrode; and a fifth connecting electrode disposed on the fourth electrode and the eighth electrode.

15. The display device according to claim 14, wherein, Each of the first connecting electrode, the second connecting electrode, and the fourth connecting electrode electrically contacts a first side of the plurality of light-emitting elements in the second direction, and Each of the third connecting electrode and the fifth connecting electrode is electrically connected to the second side of the plurality of light-emitting elements in the second direction.

16. The display device according to claim 15, wherein, The fourth connecting electrode includes: a plurality of extension portions disposed on the fifth electrode and the seventh electrode; and a bridging portion extending in the second direction and electrically connecting the plurality of extension portions. The extension portion is disposed parallel to the first connecting electrode and the second connecting electrode in the first direction.

17. The display device according to claim 15, wherein, Each of the plurality of light-emitting elements includes: a first semiconductor layer disposed at a first end of each of the plurality of light-emitting elements; a second semiconductor layer disposed at a second end of each of the plurality of light-emitting elements; and an emitting layer disposed between the first semiconductor layer and the second semiconductor layer. The plurality of light-emitting elements include: a first type of light-emitting element, including a first end electrically contacting the first connecting electrode and a second end electrically contacting the third connecting electrode; and a second type of light-emitting element, including a first end electrically contacting the third connecting electrode and a second end electrically contacting the first connecting electrode.

18. The display device according to claim 14, further comprising: A first insulating layer is disposed on the plurality of electrodes; A second insulating layer is disposed on the plurality of light-emitting elements and exposes a first side and a second side of each of the plurality of light-emitting elements in the second direction; as well as A third insulating layer is disposed on the second insulating layer and exposes the first side of each of the plurality of light-emitting elements in the second direction, wherein, The first connecting electrode, the second connecting electrode, and the fourth connecting electrode are disposed on the third insulating layer and are in electrical contact with the first side of each of the plurality of light-emitting elements. The third and fifth connecting electrodes are disposed on the second insulating layer and are in electrical contact with the second side of each of the plurality of light-emitting elements. The third insulating layer is stacked with the third connecting electrode and the fifth connecting electrode.

19. The display device according to claim 18, wherein, The first connecting electrode makes electrical contact with the first electrode through a first contact portion that passes through the first insulating layer, and The second connecting electrode makes electrical contact with the third electrode through a second contact portion that passes through the first insulating layer.

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