Display device

Abstract

The invention discloses a display device, which comprises a driving back plate, a first light-emitting element, an island-shaped insulating structure and a conductive pattern, the driving backboard is provided with a common electrode, a sub-pixel driving circuit, a first connecting pad, a second connecting pad and a third connecting pad. The first pads and the second pads are electrically connected to the sub-pixel driving circuit. The third pad is electrically connected to the common electrode. The first electrode of the first light-emitting element is bonded to the first pad of the driving back plate. The island-shaped insulation structure is arranged on the first light-emitting element. The second connecting pad and the third connecting pad are arranged outside the island-shaped insulation structure. The island-shaped insulating structure comprises a first insulating layer and a second insulating layer. The first insulating layer covers the first light-emitting element. The second insulating layer is arranged on the first insulating layer. The first part of the second insulating layer extends out of the first insulating layer. The conductive pattern is disposed on the island-shaped insulating structure and electrically connected to the second electrode of the first light-emitting element.

Description

Technical Field

[0001] The present invention relates to a photoelectric device, and in particular to a display device. Background Art

[0002] With the advancement of display technology, the development of the panel industry is no longer just pursuing large size and high capacity utilization, but is aimed at presenting a higher level of panel image quality. The current trend of panel development is gradually shifting from backlighting to active lighting. The main reason is that active lighting panels have the advantages of being thin, flexible, with a wide color gamut, wide viewing angle, high contrast, and high resolution. They can present excellent panel image quality and are suitable for more diversified product applications. Among various active light-emitting displays, micro-light-emitting diode displays also have advantages that organic light-emitting diode displays do not have, such as local dimming, high brightness, and longer service life. Therefore, they have become the main development technology of the panel industry in the future.

[0003] In order to improve the yield of micro-LED displays, in addition to setting micro-LEDs on the main pads of the driving backplane, additional micro-LEDs are also set on the repair pads of the driving backplane. After forming multiple micro-LEDs on the main pads and the repair pads, a flat layer is formed to facilitate the subsequent formation of conductive patterns. However, once the flat layer is formed, the micro-LED display is not easy to be repaired. Summary of the invention

[0004] The invention provides a display device which is easy to repair.

[0005] The display device of the present invention includes a driving backplane, a first light-emitting element, an island-shaped insulating structure and a conductive pattern. The driving backplane has a common electrode, a sub-pixel driving circuit, a first pad, a second pad and a third pad. The third pad is structurally separated from the first pad and the second pad. The first pad and the second pad are electrically connected to the sub-pixel driving circuit, and the third pad is electrically connected to the common electrode. The first light-emitting element has a first-type semiconductor layer, a second-type semiconductor layer, a first active layer arranged between the first-type semiconductor layer and the second-type semiconductor layer, a first electrode electrically connected to the first-type semiconductor layer, and a second electrode electrically connected to the second-type semiconductor layer, the first electrode and the second electrode are respectively arranged on opposite sides of the first active layer, and the first electrode of the first light-emitting element is bonded to the first pad of the driving backplane. The island-shaped insulating structure is arranged on the first light-emitting element. The second pad and the third pad are located outside the island-shaped insulating structure. The island-shaped insulating structure includes a first insulating layer and a second insulating layer. The first insulating layer covers the first light-emitting element. The second insulating layer is arranged on the first insulating layer and has an opening located on the second electrode of the first light-emitting element. The first part of the second insulating layer extends outside the first insulating layer. The conductive pattern is disposed on the island-shaped insulating structure. The first end of the conductive pattern fills the opening of the second insulating layer of the island-shaped insulating structure and is electrically connected to the second electrode of the first light-emitting element. The second end of the conductive pattern extends from the first portion of the second insulating layer of the island-shaped insulating structure to the outside of the island-shaped insulating structure and is electrically connected to the common electrode of the driving backplane. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 FIG. 4 is a schematic top view of a display device according to an embodiment of the present invention.

[0007] Figure 2 It is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention.

[0008] Figure 3 It is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention.

[0009] Figure 4 It is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention.

[0010] Wherein, the reference numerals are:

[0011] 100: Sub-pixel driving structure

[0012] 111: First pad

[0013] 112: Second pad

[0014] 113: The third pad

[0015] 114: Sub-pixel driving circuit

[0016] 115: Common electrode

[0017] 200: first light emitting element

[0018] 210: first type semiconductor layer

[0019] 220: Second type semiconductor layer

[0020] 230: First active layer

[0021] 240: first electrode

[0022] 250: second electrode

[0023] 300: Island insulation structure

[0024] 310: first insulating layer

[0025] 310a, 320a: top surface

[0026] 310e, 324e: Edge

[0027] 310e-1, 324e-1: first sub-edge

[0028] 310e-2, 324e-2: second sub-edge

[0029] 310e-3, 324e-3: The third sub-edge

[0030] 310s: Sidewall

[0031] 320: Second insulation layer

[0032] 320o: Opening

[0033] 320s, 324s: Sidewall

[0034] 322: Part 1

[0035] 324: Part 2

[0036] 400: Conductive pattern

[0037] 401: First End

[0038] 402: Second End

[0039] 500: Optical structure

[0040] 600: second light emitting element

[0041] 610: Third type semiconductor layer

[0042] 620: Type IV semiconductor layer

[0043] 630: Second active layer

[0044] 640: Third electrode

[0045] 650: fourth electrode

[0046] A, D: Distance

[0047] BP: Driver Backplane

[0048] DA: Display Device

[0049] D1: First distance

[0050] D2: Second distance

[0051] D3: The third distance

[0052] d1: first direction

[0053] d2: second direction

[0054] PX: Pixel

[0055] SPX, SPX1, SPX2, SPX3: Sub-pixel

[0056] I-I', II-II', III-III': section line

[0057] θ1: first angle

[0058] θ2: Second angle DETAILED DESCRIPTION

[0059] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0060] It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it may be directly on or connected to another element, or an intermediate element may also exist. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intermediate elements. As used herein, "connection" may refer to physical and / or electrical connection. Furthermore, "electrical connection" or "coupling" may refer to the presence of other elements between two elements.

[0061] As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within an acceptable deviation range of the particular value determined by one of ordinary skill in the art, taking into account the measurement in question and the particular amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, as used herein, "about", "approximately", or "substantially" can select a more acceptable deviation range or standard deviation depending on the optical property, etching property or other property, and can apply to all properties without a single standard deviation.

[0062] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and the present invention, and will not be interpreted as an idealized or overly formal meaning unless explicitly defined as such herein.

[0063] Figure 1 FIG. 4 is a schematic top view of a display device according to an embodiment of the present invention. Figure 2 It is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention. Figure 2 correspond Figure 1 Section line I-I'. Figure 3 It is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention. Figure 3 correspond Figure 1 Section line II-II'. Figure 4 It is a cross-sectional schematic diagram of a display device according to an embodiment of the present invention. Figure 4 correspond Figure 1 Section line III-III'. Figure 1 Omit Figure 2 , Figure 3 and Figure 4 Sub-pixel driving circuit 114.

[0064] Figure 1 One pixel PX of the display device DA is shown, wherein the one pixel PX includes a plurality of sub-pixels SPX. Figure 2 , Figure 3 and Figure 4 Shown separately Figure 1 The display device DA includes a plurality of pixels PX arranged in an array. A person skilled in the art can Figures 1 to 4 The illustrated one pixel PX and the following description should be able to implement the entire display device DA. Therefore, other pixels PX of the display device DA will not be repeatedly illustrated.

[0065] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The display device DA includes a plurality of pixels PX arranged in an array. Each pixel PX includes a plurality of sub-pixels SPX. Each sub-pixel SPX includes a sub-pixel driving structure 100 of a driving backplane BP. Each sub-pixel driving structure 100 includes a first pad 111, a second pad 112, a third pad 113, a sub-pixel driving circuit 114 and a common electrode 115, wherein the third pad 113 is structurally separated from the first pad 111 and the second pad 112, the first pad 111 and the second pad 112 are electrically connected to the sub-pixel driving circuit 114, and the third pad 113 is electrically connected to the common electrode 115.

[0066] For example, in some embodiments, each sub-pixel driving circuit 114 may include a first transistor (not shown), a second transistor (not shown) and a capacitor (not shown), the first end of the first transistor is electrically connected to a corresponding data line (not shown), the control end of the first transistor is electrically connected to a corresponding gate line (not shown), the second end of the first transistor is electrically connected to the control end of the second transistor, the first end of the second transistor is electrically connected to a corresponding power line (not shown), the capacitor is electrically connected to the second end of the first transistor and the first end of the second transistor, and the second end of the second transistor is electrically connected to the first pad 111 and the second pad 112 of the same sub-pixel driving structure 100, but the present invention is not limited to this.

[0067] Each sub-pixel SPX further includes a first light-emitting element 200. The first light-emitting element 200 has a first-type semiconductor layer 210, a second-type semiconductor layer 220, a first active layer 230 disposed between the first-type semiconductor layer 210 and the second-type semiconductor layer 220, a first electrode 240 electrically connected to the first-type semiconductor layer 210, and a second electrode 250 electrically connected to the second-type semiconductor layer 220. The first electrode 240 and the second electrode 250 are respectively disposed on opposite sides of the first active layer 230, and the first electrode 240 of the first light-emitting element 200 is bonded to the first pad 111 of the sub-pixel driving structure 100 of the same sub-pixel SPX. In short, the first light-emitting element 200 is a vertical light-emitting diode, and the lower electrode of the vertical light-emitting diode is bonded to a corresponding first pad 111. For example, in some embodiments, the first light-emitting element 200 may be a micro light-emitting diode (μLED), but the present invention is not limited thereto.

[0068] Each sub-pixel SPX further includes an island-shaped insulating structure 300 disposed on the first light-emitting element 200 of the same sub-pixel SPX. The second pad 112 and the third pad 113 of the same sub-pixel SPX are located outside the island-shaped insulating structure 300. In other words, the island-shaped insulating structure 300 does not cover the second pad 112 and the third pad 113 for repair.

[0069] Each sub-pixel SPX further includes a conductive pattern 400 disposed on the island-shaped insulating structure 300. The conductive pattern 400 is electrically connected to the second electrode 250 of the first light-emitting element 200 of the same sub-pixel SPX and the common electrode 115 of the same sub-pixel SPX. The conductive pattern 400 is, for example, a transparent conductive pattern. In some embodiments, the material of the conductive pattern 400 may include metal oxides, such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, or other suitable oxides, or a stacked layer of at least two of the above, but the present invention is not limited thereto.

[0070] In some embodiments, each sub-pixel SPX further includes an optical structure 500, covering the island-shaped insulating structure 300, the second pad 112 and the third pad 113 of the same sub-pixel SPX. The optical structure 500 of each sub-pixel SPX can be a color conversion pattern, a transparent pattern or a scattering pattern. The color conversion pattern can change the wavelength of the incident light. The haze of the transparent pattern is low, and the transparent pattern may not include scattering particles. The haze of the scattering pattern is high, and the scattering pattern may include scattering particles.

[0071] For example, in some embodiments, the multiple sub-pixels SPX of a pixel PX may include a sub-pixel SPX1, a sub-pixel SPX2 and a sub-pixel SPX3, wherein the first light-emitting element 200 of the sub-pixel SPX1 can be used to emit blue light, and the optical structure 500 of the sub-pixel SPX1 can be a color conversion pattern that converts blue light into red light, the first light-emitting element 200 of the sub-pixel SPX2 can be used to emit green light, and the optical structure 500 of the sub-pixel SPX2 can be a transparent pattern or a scattering pattern that allows green light to pass through without changing its wavelength, and the first light-emitting element 200 of the sub-pixel SPX3 can be used to emit blue light, and the optical structure 500 of the sub-pixel SPX3 can be a transparent pattern or a scattering pattern that allows blue light to pass through without changing its wavelength, but the present invention is not limited to this.

[0072] It is noteworthy that the island-shaped insulating structure 300 of each sub-pixel SPX includes a first insulating layer 310 and a second insulating layer 320. The first insulating layer 310 covers the first light-emitting element 200 of the same sub-pixel SPX. The second insulating layer 320 of the island-shaped insulating structure 300 is disposed on the first insulating layer 310 and has an opening 320o located on the second electrode 250 of the first light-emitting element 200. The first portion 322 of the second insulating layer 320 extends outside the first insulating layer 310. The first end 401 of the conductive pattern 400 fills the opening 320o of the second insulating layer 320 of the island-shaped insulating structure 300 and is electrically connected to the second electrode 250 of the first light-emitting element 200 of the same sub-pixel SPX. The second end 402 of the conductive pattern 400 extends from the first portion 322 of the second insulating layer 320 of the island-shaped insulating structure 300 to the outside of the island-shaped insulating structure 300 and is electrically connected to the common electrode 115. That is, the conductive pattern 400 generally climbs on a side wall 320s of the same insulating layer (ie, the second insulating layer 320) of the island-shaped insulating structure 300, and the side wall 320s is not divided into a plurality of slope sections. Therefore, the conductive pattern 400 is less likely to have a disconnection problem.

[0073] Please refer to Figure 1 and Figure 2 In some embodiments, a portion of the first insulating layer 310 of the island-shaped insulating structure 300 and a first portion 322 of the second insulating layer 320 may cover a portion of the common electrode 115. In some embodiments, the second insulating layer 320 of the island-shaped insulating structure 300 has a top surface 320a facing away from the driving back plate BP, and the top surface 320a of the second insulating layer 320 of the island-shaped insulating structure 300 is higher than the second electrode 250 of the first light-emitting element 200.

[0074] Please refer to Figure 1 In some embodiments, in the top view of the display device DA, the first portion 322 of the second insulating layer 320 is located outside the area of ​​the first insulating layer 310, the second portion 324 of the second insulating layer 320 is located within the area of ​​the first insulating layer 310, and the edge 324e of the second portion 324 of the second insulating layer 320 is separated from the edge 310e of the first insulating layer 310 by a distance D. For example, in some embodiments, the distance D may fall within the range of 0.5 μm to 3.5 μm, but the present invention is not limited thereto.

[0075] Please refer to Figure 1 Specifically, in some embodiments, the first pad 111, the second pad 112 and the third pad 113 are parallel to the driving back plate BP (indicated at Figure 2), the edge 324e of the second portion 324 of the second insulating layer 320 includes a first sub-edge 324e-1 staggered with the first direction d1, the edge 310e of the first insulating layer 310 includes a first sub-edge 310e-1 staggered with the first direction d1 and not covered by the second insulating layer 320, and the first sub-edge 310e-1 of the first insulating layer 310 and the first sub-edge 324e-1 of the second insulating layer 320 are separated by a first distance D1 in the first direction d1. In some embodiments, the second direction d2 is parallel to the driving backplane BP (indicated at Figure 2 ) and staggered with the first direction d1, the edge 324e of the second portion 324 of the second insulating layer 320 further includes a second sub-edge 324e-2 and a third sub-edge 324e-3 arranged in the second direction d2 and opposite to each other, the edge 310e of the first insulating layer 310 further includes a second sub-edge 310e-2 and a third sub-edge 310e-3 arranged in the second direction d2, opposite to each other and not covered by the second insulating layer 320, the second sub-edge 324e-2 of the second insulating layer 320 is separated from the second sub-edge 310e-2 of the first insulating layer 310 by a second distance D2, and the third sub-edge 324e-3 of the second insulating layer 320 is separated from the third sub-edge 310e-3 of the first insulating layer 310 by a third distance D3. In some embodiments, the first distance D1, the second distance D2, and the third distance D3 may fall within the range of 0.5 μm to 3.5 μm, but the present invention is not limited thereto.

[0076] Please refer to Figure 1 and Figure 2 In some embodiments, the first insulating layer 310 has a sidewall 310s defining an edge 310e of the first insulating layer 310, the first insulating layer 310 has a top surface 310a facing away from the driving back plate BP, the second insulating layer 320 has a sidewall 324s defining an edge 324e of a second portion 324 of the second insulating layer 320, and the optical structure 500 contacts the sidewall 310s of the first insulating layer 310, the top surface 310a of the first insulating layer 310, and the sidewall 324s of the second insulating layer 320. That is, in some embodiments, a portion of the second insulating layer 320 (i.e., the second portion 324) is retracted into the edge 310e of the first insulating layer 310, and the second insulating layer 320 does not cover a portion of the top surface 310a of the first insulating layer 310. Thus, when the optical structure 500 is formed on the driving backplane BP, the optical structure 500 can contact the discontinuous slope formed by the sidewall 310s of the first insulating layer 310, the top surface 310a of the first insulating layer 310 and the sidewall 324s of the second insulating layer 320, thereby increasing the filling yield of the optical structure 500.

[0077] In some embodiments, the sidewall 310s of the first insulating layer 310 and the driving backplane BP may have a first angle θ1, and the sidewall 324s of the second insulating layer 320 and the top surface 310a of the first insulating layer 310 have a second angle θ2, 45°≤θ1≤90°, 45°≤θ2≤90°, but the present invention is not limited thereto.

[0078] In addition, since the second insulating layer 320 does not cover the partial top surface 310a of the first insulating layer 310, a partial light beam (not shown) emitted by the first light-emitting element 200 can pass through the partial top surface 310a of the first insulating layer 310 not covered by the second insulating layer 320 without being totally reflected by the interface between the first insulating layer 310 and the second insulating layer 320, and thus, the light output of the first light-emitting element 200 can be improved. In some embodiments, the first insulating layer 310 of the island-shaped insulating structure 300 has a top surface 310a facing away from the driving backplane BP, and the top surface 310a of the first insulating layer 310 is higher than the first active layer 230 of the first light-emitting element 200.

[0079] Please refer to Figure 1 and Figure 2 In some embodiments, in the manufacturing process of the display device DA, a detection process may be performed after forming the island-shaped insulating structure 300 covering the first light-emitting element 200. If it is found in the detection process that the first light-emitting element 200 of a certain sub-pixel SPX cannot be driven by the driving backplane BP and emit light normally, the repairing second light-emitting element 600 may be bonded to the second pad 112 and the third pad 113 of the sub-pixel SPX to replace the function of the first light-emitting element 200 that cannot emit light. It is worth mentioning that since the island-shaped insulating structure 300 does not cover the repairing second pad 112 and the third pad 113, when the repairing second light-emitting element 600 needs to be transferred to the second pad 112 and the third pad 113, the island-shaped insulating structure 300 does not constitute an obstacle.

[0080] In some embodiments, the repaired sub-pixel SPX further includes a second light-emitting element 600, wherein the second light-emitting element 600 has a third-type semiconductor layer 610, a fourth-type semiconductor layer 620, a second active layer 630 disposed between the third-type semiconductor layer 610 and the fourth-type semiconductor layer 620, a third electrode 640 electrically connected to the third-type semiconductor layer 610, and a fourth electrode 650 electrically connected to the fourth-type semiconductor layer 620, wherein the third electrode 640 and the fourth electrode 650 are disposed on the same side of the second active layer 630, and the second light-emitting element 6 The third electrode 640 and the fourth electrode 650 of 00 are respectively connected to the second pad 112 and the third pad 113 of the sub-pixel SPX to be repaired, and the second part 324 of the second insulating layer 320 of the island-shaped insulating structure 300 is located within the area of ​​the first insulating layer 310. The second insulating layer 320 has a side wall 324s that defines the edge 324e of the second part 324 of the second insulating layer 320. The side wall 324s of the second insulating layer 320 and the second light-emitting element 600 for repair are separated by a distance A in the first direction d1 parallel to the driving backplane BP.

[0081] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A display device, characterized in that: include: A driving backplane having a common electrode, a sub-pixel driving circuit, a first pad, a second pad and a third pad, wherein the third pad is structurally separated from the first pad and the second pad, the first pad and the second pad are electrically connected to the sub-pixel driving circuit, and the third pad is electrically connected to the common electrode; A first light-emitting element, wherein the first light-emitting element comprises a first-type semiconductor layer, a second-type semiconductor layer, a first active layer disposed between the first-type semiconductor layer and the second-type semiconductor layer, a first electrode electrically connected to the first-type semiconductor layer, and a second electrode electrically connected to the second-type semiconductor layer, the first electrode and the second electrode are respectively disposed on opposite sides of the first active layer, and the first electrode of the first light-emitting element is bonded to the first pad of the driving backplane; An island-shaped insulating structure is disposed on the first light-emitting element, wherein the second pad and the third pad are located outside the island-shaped insulating structure, and the island-shaped insulating structure includes: a first insulating layer covering the first light emitting element; and a second insulating layer disposed on the first insulating layer and having an opening located on the second electrode of the first light-emitting element, wherein a first portion of the second insulating layer extends outside the first insulating layer; and A conductive pattern is arranged on the island-shaped insulating structure, wherein a first end of the conductive pattern fills the opening of the second insulating layer of the island-shaped insulating structure and is electrically connected to the second electrode of the first light-emitting element, and a second end of the conductive pattern extends from the first part of the second insulating layer of the island-shaped insulating structure to the outside of the island-shaped insulating structure and is electrically connected to the common electrode of the driving backplane.

2. The display device according to claim 1, wherein: In the top view of the display device, a second portion of the second insulating layer is located within the area of ​​the first insulating layer, and an edge of the second portion of the second insulating layer is spaced a distance from an edge of the first insulating layer.

3. The display device according to claim 2, wherein: The distance is in the range of 0.5 μm to 3.5 μm.

4. The display device according to claim 2, wherein: The first pad, the second pad and the third pad are arranged in a first direction parallel to the driving backplane, the edge of the second part of the second insulating layer includes a first sub-edge that is staggered with the first direction, the edge of the first insulating layer includes a first sub-edge that is staggered with the first direction and is not covered by the second insulating layer, and the first sub-edge of the first insulating layer and the first sub-edge of the second insulating layer are separated by a first distance in the first direction.

5. The display device according to claim 4, characterized in that One of the second directions is parallel to the driving backplane and is staggered with the first direction, the edge of the second portion of the second insulating layer further includes a second sub-edge and a third sub-edge arranged in the second direction and opposite to each other, the edge of the first insulating layer further includes a second sub-edge and a third sub-edge arranged in the second direction, opposite to each other and not covered by the second insulating layer, the second sub-edge of the second insulating layer is separated from the second sub-edge of the first insulating layer by a second distance, and the third sub-edge of the second insulating layer is separated from the third sub-edge of the first insulating layer by a third distance.

6. The display device according to claim 2, wherein: Also includes: An optical structure covers the island-shaped insulating structure, the second pad and the third pad, wherein the first insulating layer has a side wall defining the edge of the first insulating layer, the first insulating layer has a top surface facing away from the driving backplane, and the second insulating layer has a side wall defining the edge of the second part of the second insulating layer. The optical structure contacts the side wall of the first insulating layer, the top surface of the first insulating layer and the side wall of the second insulating layer, and the optical structure includes a color conversion pattern, a transparent pattern or a scattering pattern.

7. The display device according to claim 1, wherein: A portion of the first insulating layer of the island-shaped insulating structure and the first portion of the second insulating layer cover a portion of the common electrode.

8. The display device according to claim 1, wherein: The first light emitting element has a first active layer, the first insulating layer of the island-shaped insulating structure has a top surface facing away from the driving backplane, and the top surface of the first insulating layer is higher than the first active layer of the first light emitting element.

9. The display device according to claim 1, wherein: The second insulating layer of the island-shaped insulating structure has a top surface facing away from the driving backplane, and the top surface of the second insulating layer of the island-shaped insulating structure is higher than the second electrode of the first light-emitting element.

10. The display device according to claim 1, wherein: Also includes: A second light-emitting element, wherein the second light-emitting element has a third-type semiconductor layer, a fourth-type semiconductor layer, a second active layer arranged between the third-type semiconductor layer and the fourth-type semiconductor layer, a third electrode electrically connected to the third-type semiconductor layer, and a fourth electrode electrically connected to the fourth-type semiconductor layer, the third electrode and the fourth electrode are arranged on the same side of the second active layer, the third electrode and the fourth electrode of the second light-emitting element are respectively bonded to the second pad and the third pad of the driving backplane, a second portion of the second insulating layer of the island-shaped insulating structure is located within the area of ​​the first insulating layer, the second insulating layer has a side wall defining an edge of the second portion of the second insulating layer, and the side wall of the second insulating layer is separated from the second light-emitting element by a distance in a first direction parallel to the driving backplane.

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