Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel comprises a driving substrate, a pixel unit, a bottom bonding layer and an interlayer bonding layer. The pixel unit is arranged on one side of the driving substrate. The pixel unit comprises a plurality of pixels. Each pixel comprises a plurality of light emitting devices arranged in a stack. The light emitting device closest to the driving substrate in the pixel is bonded to the driving substrate through the bottom bonding layer. Adjacent two light emitting devices are bonded to each other through the interlayer bonding layer. Adjacent two pixels share one or two light emitting devices, so that the area ratio of the light emitting area of the display panel is increased. The light emitted by the light emitting device can be emitted as much as possible along the top of the light emitting device. The light emitting efficiency is effectively improved, and the adverse effects caused by the size effect of the existing light emitting device are reduced.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Micro LED (μLED) chips feature low power consumption, high brightness, ultra-high definition, high color saturation, faster response speed, longer lifespan, and higher efficiency, and can be widely used in smartwatches, mobile devices, virtual reality (VR) devices, augmented reality (AR) devices, and flexible display devices.

[0003] Miniature light-emitting diodes (LEDs) can be used in color micro-display technology. Typically, a color image is composed of three miniature LEDs: red, green, and blue. However, as the size of miniature LEDs continues to shrink, the size effect intensifies. Specifically, the proportion of the sidewall area of ​​the miniature LED to the total surface area increases, and the light emission from the top of the miniature LED decreases, thus affecting the luminous efficiency. Summary of the Invention

[0004] This application provides a display panel and display device to alleviate the shortcomings of related technologies.

[0005] To achieve the above functions, the technical solutions provided in this application are as follows:

[0006] This application provides a display panel, including:

[0007] Drive substrate;

[0008] A pixel unit is disposed on one side of the driving substrate. The pixel unit includes a plurality of pixels, and the pixels include a plurality of light-emitting devices stacked together.

[0009] The bottom bonding layer is used to bond the light-emitting devices in the pixels that are close to the driving substrate to the driving substrate.

[0010] An interlayer bonding layer is provided, through which two adjacent light-emitting devices are bonded to each other;

[0011] In this configuration, two adjacent pixels share one or two light-emitting devices.

[0012] In the display panel provided in this embodiment, the pixel includes a first light-emitting device and a second light-emitting device that are sequentially stacked on the driving substrate, and the light-emitting colors of the first light-emitting device and the second light-emitting device are different;

[0013] The interlayer bonding layer includes a plurality of first interlayer bonding layers, which are located between the first light-emitting device and the second light-emitting device, and the first light-emitting device layer and the second light-emitting device are bonded to each other through the first interlayer bonding layers;

[0014] The display panel includes a first conductive layer, and the second light-emitting device is connected to the driving substrate through the first conductive layer. The first conductive layer is located between two adjacent interlayer bonding layers and is insulated from the interlayer bonding layers.

[0015] In the display panel provided in this embodiment, the pixel further includes a third light-emitting device, which is located on the side of the second light-emitting device away from the first light-emitting device. The light-emitting colors of the first light-emitting device, the second light-emitting device, and the third light-emitting device are all different.

[0016] The interlayer bonding layer includes a plurality of second interlayer bonding layers, which are located between the second light-emitting device and the third light-emitting device, and the second light-emitting device layer and the third light-emitting device are bonded to each other through the second interlayer bonding layers;

[0017] The display panel includes a second conductive layer, and the third light-emitting device is connected to the driving substrate through the second conductive layer. The second conductive layer is located between two adjacent inter-layer bonding layers of the second layer, and the second conductive layer is insulated from the inter-layer bonding layer of the second layer.

[0018] In the display panel provided in this embodiment, the pixel unit includes multiple pixel groups, and the pixel group includes a first pixel and a second pixel;

[0019] In any of the pixel groups, adjacent first pixels and second pixels share the first light-emitting device and the third light-emitting device; in two adjacent pixel groups, the second pixel of one pixel group is adjacent to the first pixel of the other pixel group, and the second pixel of one pixel group and the first pixel of the other pixel group share the second light-emitting device.

[0020] In each of two adjacent pixel groups, the first conductive layer is located between two adjacent first light-emitting devices, and the first conductive layer is insulated from the first light-emitting devices; in any of the pixel groups, the second conductive layer is located between two adjacent second light-emitting devices, and the second conductive layer is insulated from the second light-emitting devices.

[0021] In the display panel provided in this embodiment, the pixel unit includes multiple pixel groups, and the pixel group includes a first pixel and a second pixel;

[0022] In any of the pixel groups, adjacent first pixels and second pixels share the first light-emitting device; in two adjacent pixel groups, the second pixel of one pixel group is adjacent to the first pixel of the other pixel group, and the second pixel of one pixel group and the first pixel of the other pixel group share the second light-emitting device.

[0023] In each of two adjacent pixel groups, the first conductive layer is located between two adjacent first light-emitting devices, and the first conductive layer is insulated from the first light-emitting device; in any pixel group, the second light-emitting device and the third light-emitting device of the first pixel are bonded to each other through two second interlayer bonding layers, the second conductive layer is located between the second light-emitting device and the third light-emitting device, and the second conductive layer is insulated from the second light-emitting device.

[0024] In the display panel provided in this embodiment, the pixel unit includes N adjacent pixel groups, and the N pixel groups are arranged sequentially along the first direction, wherein N is a positive integer greater than or equal to 2;

[0025] In the first pixel group, the second light-emitting device of the first pixel is bonded to the first light-emitting device through two first interlayer bonding layers; in the Nth pixel group, the second light-emitting device of the second pixel is bonded to the first light-emitting device through two first interlayer bonding layers.

[0026] In the display panel provided in this embodiment, the display panel further includes a first common electrode, which is located on the side of the pixel unit away from the driving substrate, and the common electrode is respectively connected to the second light-emitting device and the third light-emitting device;

[0027] The light-emitting device includes a second common light-emitting device, wherein in two adjacent pixel groups, the second pixel of one pixel group and the first pixel of the other pixel group share a second common light-emitting device;

[0028] The first common electrode includes a first common sub-electrode, which is located between two adjacent pixel groups and is connected to the second common light-emitting device.

[0029] In the display panel provided in this embodiment, the first common sub-electrode is coaxially disposed with the first conductive layer between two adjacent pixel groups.

[0030] In the display panel provided in this embodiment, the display panel further includes a plurality of second common electrodes, which are located between the first light-emitting device and the second light-emitting device;

[0031] The light-emitting device includes a first common light-emitting device, and in any pixel group, adjacent first pixels and second pixels share a first common light-emitting device;

[0032] In this configuration, a second common electrode is connected to a first common light-emitting device.

[0033] This application provides a display device, which includes a terminal body and any of the above-described display panels, wherein the terminal body and the display panel are integrated into one unit.

[0034] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application provide a display panel and a display device. The display panel includes a driving substrate, a pixel unit, a bottom bonding layer, and an interlayer bonding layer. The pixel unit is disposed on one side of the driving substrate and includes a plurality of pixels. Each pixel includes a plurality of light-emitting devices stacked on top of each other. The light-emitting devices of the pixels closest to the driving substrate are bonded to the driving substrate through the bottom bonding layer, and adjacent light-emitting devices are bonded to each other through an interlayer bonding layer. Adjacent pixels share one or two light-emitting devices, thereby increasing the proportion of the light-emitting area of ​​the display panel. This allows the light emitted by the light-emitting devices to be emitted as much as possible along their top, effectively improving the light extraction efficiency and reducing the adverse effects of the size effect of existing light-emitting devices. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the display panel provided in Embodiment 1 of this application;

[0037] Figure 2 This is a cross-sectional schematic diagram of the first pixel unit group provided in Embodiment 1 of this application;

[0038] Figure 3 This is a cross-sectional schematic diagram of the Nth pixel unit group provided in Embodiment 1 of this application;

[0039] Figure 4This is a schematic diagram of the structure of the display panel provided in Embodiment 2 of this application;

[0040] Figure 5 This is a cross-sectional schematic diagram of the first pixel unit group provided in Embodiment 2 of this application;

[0041] Figure 6 This is a cross-sectional schematic diagram of the Nth pixel unit group provided in Embodiment 2 of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] This application provides a display panel and a display device. These will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0047] Example 1

[0048] Please see Figure 1 This is a schematic diagram of the structure of the display panel provided in Embodiment 1 of this application.

[0049] This embodiment provides a display panel 1, which includes a driving substrate 10, pixel units 20, a bottom bonding layer 40, and an interlayer bonding layer 50. The pixel units 20 are disposed on one side of the driving substrate 10 and include a plurality of pixels 21 arranged sequentially along a first direction X. The driving substrate 10 includes a driving circuit (not shown in the figure), which includes a pixel driver. The pixel driver includes, but is not limited to, a thin-film transistor pixel driver or a silicon CMOS pixel driver. The pixel driver can control the operation of the pixel units 20.

[0050] In this embodiment, the pixel 21 includes a plurality of light-emitting devices 210 stacked sequentially on the driving substrate 10. The light-emitting devices 210 in the pixel 21 that are close to the driving substrate 10 are bonded to the driving substrate 10 through the bottom bonding layer 40, and two adjacent light-emitting devices 210 are bonded to each other through an interlayer bonding layer 50.

[0051] Furthermore, the pixel 21 includes a first light-emitting device 210A, a second light-emitting device 210B, and a third light-emitting device 210C sequentially stacked on the driving substrate 10. The light-emitting colors of the first light-emitting device 210A, the second light-emitting device 210B, and the third light-emitting device 210C are all different. Adjacent pixels 21 share one or both of the first light-emitting device 210A, the second light-emitting device 210B, and the third light-emitting device 210C. The first light-emitting device 210A, the second light-emitting device 210B, and the third light-emitting device 210C include, but are not limited to, micro LEDs (μLEDs).

[0052] It should be noted that this embodiment uses the first direction as the X direction, the horizontal direction as the same as the first direction X, the first light-emitting device 210A as a red miniature light-emitting diode, the second light-emitting device 210B as a green miniature light-emitting diode, and the third light-emitting device 210C as a blue miniature light-emitting diode as examples to illustrate the technical solution of this application.

[0053] In related technologies, micro-light-emitting diodes (LEDs) can be applied to color micro-display technology. Typically, at least three independent monochrome screens are used, i.e., red, green, and blue micro-LEDs are used to form a color image. Currently, the main layout of color micro-display structures is to distribute the red, green, and blue micro-LEDs horizontally. However, in the horizontal distribution structure of red, green, and blue micro-LEDs, the three micro-LEDs in the horizontal direction form a color optical mechanism. The pixel size of the horizontal color optical mechanism is relatively large, resulting in a low pixel density of the formed micro-display device, which poses a challenge for micro-displays with small pixel size and high pixel density requirements.

[0054] It is understood that, in this embodiment, the pixels are configured to include a first light-emitting device, a second light-emitting device, and a third light-emitting device stacked sequentially on the driving substrate. That is, the first light-emitting device, the second light-emitting device, and the third light-emitting device are stacked vertically in sequence. Compared with the existing pixel structure that is arranged and integrated in the horizontal direction, the pixels in this embodiment occupy less space in the horizontal direction, thereby realizing an ultra-high density color micro-display, and thus achieving a smaller display panel size or a higher resolution for the same resolution.

[0055] Further, in this embodiment, the interlayer bonding layer 50 includes a plurality of first interlayer bonding layers 51, which are located between the first light-emitting device 210A and the second light-emitting device 210B. The first light-emitting device layer 210A and the second light-emitting device 210B are bonded to each other through the first interlayer bonding layers 51. The display panel 1 includes a first conductive layer 61, and the second light-emitting device 210B is connected to the driving substrate 10 through the first conductive layer 61. The first conductive layer 61 is located between two adjacent first interlayer bonding layers 51, and the first conductive layer 61 is insulated from the first interlayer bonding layers 51.

[0056] The interlayer bonding layer 50 further includes a plurality of second interlayer bonding layers 52, which are located between the second light-emitting device 210B and the third light-emitting device 210C. The second light-emitting device layer 210B and the third light-emitting device 210C are bonded to each other through the second interlayer bonding layers 52. The display panel 1 includes a second conductive layer 62, and the third light-emitting device 210C is connected to the driving substrate 10 through the second conductive layer 62. The second conductive layer 62 is located between two adjacent second interlayer bonding layers 52, and the second conductive layer 62 is insulated from the second interlayer bonding layers 52.

[0057] Specifically, the first light-emitting device 210A is bonded to the driving substrate 10 through the bottom bonding layer 40, and a plurality of first interlayer bonding layers 51 are spaced apart along the first direction X. In any pixel, a second light-emitting device 210B is bonded to a first light-emitting device 210A through one or two first interlayer bonding layers 51. A plurality of second interlayer bonding layers 52 are spaced apart along the first direction X. In any pixel, a third light-emitting device 210C is bonded to a second light-emitting device 210B through one or two second interlayer bonding layers 52.

[0058] It is understood that in this embodiment, by setting the first light-emitting device 210A to be bonded to the driving substrate 10 through the bottom bonding layer 40, the first light-emitting device layer 210A and the second light-emitting device 210B to be bonded to each other through the first interlayer bonding layer 51, the second light-emitting device 210B to be connected to the driving substrate 10 through the first conductive layer 61, the first conductive layer 61 being located between two adjacent first interlayer bonding layers 51 and being insulated from the first interlayer bonding layer 51, the second light-emitting device layer 210B and the third light-emitting device 210C to be bonded to each other through the second interlayer bonding layer 52, the third light-emitting device 210C to be connected to the driving substrate 10 through the second conductive layer 62, the second conductive layer 62 being located between two adjacent second interlayer bonding layers 52 and being insulated from the second interlayer bonding layer 52, a display panel with vertical pixel units is formed, which can form a certain area and uniform brightness color light source in a small volume, effectively reducing the size of the display panel.

[0059] Wherein, the first light-emitting device 21A includes a first light-emitting layer 21A1, the second light-emitting device 21B includes a second light-emitting layer 21B1, the third light-emitting device 21C includes a third light-emitting layer 21C1, the second light-emitting layer 21B1 is bonded to the first light-emitting layer 21A1 through the first interlayer bonding layer 51, and the third light-emitting layer 21C1 is bonded to the second light-emitting layer 21B1 through the second interlayer bonding layer 52.

[0060] Further, in this embodiment, the pixel unit 20 includes a plurality of pixel groups 20A, each pixel group 20A including a first pixel 211 and a second pixel 212; in any pixel group 20A, adjacent first pixels 211 and second pixels 212 share the first light-emitting device 210A and the third light-emitting device 210C; in two adjacent pixel groups 20A, the second pixel 212 of one pixel group 20A is adjacent to the first pixel 211 of the other pixel group 20A, and the second pixel 212 of one pixel group 20A shares the second light-emitting device 210B with the first pixel 211 of the other pixel group 20A; wherein, in two adjacent pixel groups 20A, the first conductive layer 61 is located between two adjacent first light-emitting devices 210A, and the first conductive layer 61 is insulated from the first light-emitting device 210A; in any pixel group 20A, the second conductive layer 62 is located between two adjacent second light-emitting devices 210B, and the second conductive layer 62 is insulated from the second light-emitting device 210B.

[0061] It should be noted that in the prior art, as the size of micro light-emitting diodes (LEDs) continues to shrink, the size effect also intensifies. Specifically, the proportion of the sidewall area of ​​the micro LED to the overall surface area increases, and the light emission from the top of the micro LED decreases, thus affecting the luminous efficiency. In this embodiment, by setting up adjacent first pixels 211 and second pixels 212 in any pixel group 20A to share the first light-emitting device 210A and the third light-emitting device 210C; and in two adjacent pixel groups 20A, the second pixel 212 of one pixel group 20A and the first pixel 211 of the other pixel group 20A share the second light-emitting device 210B, thereby increasing the proportion of the light-emitting area of ​​the display panel 1. This allows the light emitted by the light-emitting device 210 to be emitted as much as possible along its top, effectively improving the light emission efficiency and reducing the adverse effects of the size effect of existing light-emitting devices.

[0062] Specifically, in adjacent pixel groups 20A, the first light-emitting device 210A and the second light-emitting device 210B are staggered, and the third light-emitting device 210C and the second light-emitting device 210B are staggered.

[0063] It is understandable that, compared to existing display panels where a pixel includes three stacked red, green, and blue micro-light-emitting diodes, as the size of the micro-light-emitting diodes decreases, the proportion of the sidewall area of ​​the micro-light-emitting diode to the overall surface area increases, and the light emission from the top of the micro-light-emitting diode decreases, thus affecting the luminous efficiency. In this embodiment, in any pixel group 20A, adjacent first pixels 211 and second pixels 212 share the first light-emitting device 210A and the third light-emitting device 210C; in two adjacent pixel groups 20A, the first light-emitting device 210A and the second light-emitting device 210B are staggered, and the third light-emitting device 210C and the second light-emitting device 210B are staggered, thereby increasing the actual light-emitting area of ​​the light-emitting device, improving the proportion of the light-emitting area of ​​the light-emitting device, and thus reducing the impact of the size effect.

[0064] Furthermore, it should be noted that in existing display panels, each monochrome light-emitting device is sequentially fabricated on a driving substrate. Therefore, there is a step difference between adjacent light-emitting devices, which can easily cause cracks or breakage during the bonding process, affecting product characteristics. At the same time, as the number of light-emitting devices increases, the step difference between adjacent pixels 21 increases, making it difficult to perform exposure, etching, and film deposition processes, thereby increasing the difficulty of the fabrication process. It can be understood that in this embodiment, by having adjacent first pixels 211 and second pixels 212 share the first light-emitting device 210A and the third light-emitting device 210C in any pixel group 20A, and by staggering the first light-emitting device 210A and the second light-emitting device 210B in two adjacent pixel groups 20A, the step difference between adjacent pixels 21 is reduced, improving process efficiency and reducing process difficulty.

[0065] Meanwhile, in this embodiment, by setting that in any pixel group 20A, adjacent first pixels 211 and second pixels 212 share the first light-emitting device 210A and the third light-emitting device 210C; and in two adjacent pixel groups 20A, the second pixel 212 of one pixel group 20A and the first pixel 211 of the other pixel group 20A share the second light-emitting device 210B, a pixel driver can control the operation of multiple pixels 21. That is, in the design provided by this embodiment, even as the number of light-emitting devices increases, there is no need to worry about the limited size of the existing driving substrate 10.

[0066] Furthermore, please combine Figure 1 , Figure 2 and Figure 3 ;in, Figure 2 This is a cross-sectional schematic diagram of the first group of pixel units provided in Embodiment 1 of this application; Figure 3 This is a cross-sectional schematic diagram of the Nth pixel unit group provided in Embodiment 1 of this application.

[0067] In this embodiment, the display panel 1 includes a plurality of first pixel areas 100 and a plurality of second pixel areas 200, which are alternately distributed along a first direction X. The first pixel 211 is located within the first pixel area 100, and the second pixel 212 is located within the second pixel area 200. The pixel unit 20 includes N adjacent pixel groups 20A, which are arranged sequentially along the first direction X, where N is a positive integer greater than or equal to 2.

[0068] In the first pixel group 20A, the second light-emitting device 210B of the first pixel 211 is bonded to the first light-emitting device 210A through two first interlayer bonding layers 51; in the Nth pixel group, the second light-emitting device 210B of the second pixel 212 is bonded to the first light-emitting device 210A through two first interlayer bonding layers 51.

[0069] It should be noted that this embodiment uses the example of N equaling 3, that is, the pixel unit 20 including 3 adjacent pixel groups 20A, to illustrate the technical solution of this application.

[0070] In this embodiment, the display panel 1 further includes a first common electrode 31, which is located on the side of the pixel unit 20 away from the driving substrate 10. The first common electrode 31 is connected to the second light-emitting device 210B and the third light-emitting device 210C respectively. The light-emitting device 210 includes a second common light-emitting device 211B. In two adjacent pixel groups, the second pixel 212 of one pixel group 20A and the first pixel 211 of the other pixel group 20A share a second common light-emitting device 211B.

[0071] Furthermore, in this embodiment, the orthographic projection of the first common electrode 31 on the driving substrate 10 covers the orthographic projection of the pixel unit 20 on the driving substrate 10; wherein, the first common electrode 31 includes a first common sub-electrode 311, the first common sub-electrode 311 is located between two adjacent pixel groups 20A, and the first common sub-electrode 311 is connected to the second common light-emitting device 211B.

[0072] It is understood that in this embodiment, by setting up any pixel group 20A, adjacent first pixels 211 and second pixels 212 share the first light-emitting device 210A and the third light-emitting device 210C, and in two adjacent pixel groups 20A, the second pixel 212 of one pixel group 20A and the first pixel 211 of another pixel group 20A share the second light-emitting device 210B, and the first common electrode 31 is connected to the second light-emitting device 210B and the third light-emitting device 210C respectively, the proportion of the light-emitting area of ​​the light-emitting device is increased, thereby reducing the influence of size effect; preferably, the first common sub-electrode 311 is coaxially arranged with the first conductive layer 61, thereby increasing the light-emitting area of ​​the pixel 21 and improving the light-emitting efficiency.

[0073] Furthermore, in this embodiment, the first common electrode 31 includes a second common sub-electrode 312 corresponding to the first pixel group 20A. One end of the second common sub-electrode 312 is connected to the first common sub-electrode 311, and the other end of the second common sub-electrode 312 extends from the pixel group 20A toward the driving substrate 10. The other end of the second common sub-electrode 312 is sequentially connected to the third light-emitting layer 21C1 and the second light-emitting layer 21B1.

[0074] It is understood that this embodiment reduces the design of common electrodes in related technologies by sequentially connecting the other end of the second common sub-electrode 312 to the third light-emitting layer 21C1 and the second light-emitting layer 21B1, thereby avoiding the design of too many common electrodes occupying the light-emitting area of ​​the light-emitting layer in the pixel unit 20.

[0075] It should be noted that, in this embodiment, the display panel 1 further includes a plurality of second common electrodes 32, which are located between the first light-emitting device 210A and the second light-emitting device 210B; the light-emitting device 210 includes a first common light-emitting device 211A, and in any pixel group 20A, adjacent first pixels 211 and second pixels 212 share the first common light-emitting device 211A; wherein, one second common electrode 32 is connected to one first common light-emitting device 211A.

[0076] Furthermore, in this embodiment, the display panel 1 further includes a plurality of lens sheets 70, which are located on the side of the pixel unit 20 away from the driving substrate 10. Each lens sheet 70 is disposed corresponding to a pixel 21, and the orthographic projection of the lens sheet 70 on the driving substrate 10 covers the orthographic projection of the pixel 21 on the driving substrate 10. Preferably, the lens sheet 70 is a convex lens, the center of the lens sheet 70 is aligned with the center of the pixel 21, and the diameter of the lens sheet 70 gradually decreases along the direction from the driving substrate 10 toward the pixel unit 20.

[0077] It is understood that in this embodiment, by setting the lens 70 on the side of the pixel unit 20 away from the driving substrate 10, the light emitted by the micro light-emitting diode is more concentrated, thereby improving the light emission efficiency of the display panel 1 at the front viewing angle.

[0078] Example 2

[0079] Figure 4 This is a schematic diagram of the structure of the display panel provided in Embodiment 2 of this application; Figure 5This is a cross-sectional schematic diagram of the first group of pixel units provided in Embodiment 2 of this application; Figure 6 This is a cross-sectional schematic diagram of the Nth pixel unit group provided in Embodiment 2 of this application.

[0080] In this embodiment, the structure of the display panel is similar to / the same as that of the display panel provided in Embodiment 1 above. Please refer to the description of the display panel in Embodiment 1 above for details, which will not be repeated here. The only difference between the two is:

[0081] In this embodiment, in any pixel group 20A, adjacent first pixels 211 and second pixels 212 share the first light-emitting device 210A; in two adjacent pixel groups 20A, the second pixel 212 of one pixel group 20A is adjacent to the first pixel 211 of the other pixel group 20A, and the second pixel 212 of one pixel group 20A and the first pixel 211 of the other pixel group 20A share the second light-emitting device 210B; wherein, in two adjacent pixel groups 20A, the first conductive layer 61 is located between two adjacent first light-emitting devices 210A, and the first conductive layer 61 is insulated from the first light-emitting device 210A; in any pixel group 20A, the second light-emitting device 210B and the third light-emitting device 210C of the first pixel 211 are bonded to each other through two second interlayer bonding layers 52, the second conductive layer 62 is located between the second light-emitting device 210B and the third light-emitting device 210C, and the second conductive layer 62 is insulated from the second light-emitting device 210B.

[0082] Specifically, in this embodiment, the third light-emitting device 210C of the first pixel 211 and the third light-emitting device 210C of the second pixel 212 are arranged at intervals, and in two adjacent pixel groups 20A, the first light-emitting device 210A and the second light-emitting device 210B are arranged in a staggered manner.

[0083] In this embodiment, the first light-emitting device 210A is preferably a red light-emitting device, the second light-emitting device 210B is preferably a blue light-emitting device, and the third light-emitting device 210C is preferably a green light-emitting device. Both the first pixel 211 and the second pixel 212 include a separate third light-emitting device 210C. It should be understood that the preference for red light-emitting device 210A, blue light-emitting device 210B, and green light-emitting device 210C is merely illustrative, and this embodiment does not impose specific limitations on the light-emitting color of the light-emitting devices.

[0084] It is understood that in this embodiment, the first light-emitting device 210A, the second light-emitting device 210B, and the third light-emitting device 210C are sequentially stacked on the driving substrate 10. In this embodiment, by setting the third light-emitting device 210C of the first pixel 211 and the third light-emitting device 210C of the second pixel 212 to be spaced apart, and each of the first pixel 211 and the second pixel 212 includes a separate third light-emitting device 210C, the third light-emitting device 210C is located on the light-emitting side of the pixel 21, thereby improving the light-emitting brightness of the third light-emitting device 210C, and thus improving the display effect of the display panel 1.

[0085] This embodiment provides a display device, which includes a terminal body and a display panel as described in any of the above embodiments, wherein the terminal body and the display panel are integrated into one unit.

[0086] The display panel has been described in detail in the above embodiments and will not be repeated here.

[0087] In specific applications, the display device can be the display screen of devices such as smartphones, tablets, laptops, smart bracelets, smartwatches, smart glasses, smart helmets, desktop computers, smart TVs, or digital cameras, and can even be applied to electronic devices with flexible displays.

[0088] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0089] The above provides a detailed description of a display panel and display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that, include: Drive substrate; A pixel unit is disposed on one side of the driving substrate. The pixel unit includes a plurality of pixels. Each pixel includes a first light-emitting device, a second light-emitting device, and a third light-emitting device that are stacked sequentially on the driving substrate. The light-emitting colors of the first light-emitting device, the second light-emitting device, and the third light-emitting device are all different, and adjacent pixels share one or two light-emitting devices. The bottom bonding layer is used to bond the light-emitting devices in the pixels that are close to the driving substrate to the driving substrate. An interlayer bonding layer is provided, through which two adjacent light-emitting devices are bonded to each other; The display panel further includes a first common electrode, which is located on the side of the pixel unit away from the driving substrate. The common electrode is connected to the second light-emitting device and the third light-emitting device.

2. The display panel according to claim 1, characterized in that, The interlayer bonding layer includes a plurality of first interlayer bonding layers, which are located between the first light-emitting device and the second light-emitting device, and the first light-emitting device layer and the second light-emitting device are bonded to each other through the first interlayer bonding layers; The display panel includes a first conductive layer, and the second light-emitting device is connected to the driving substrate through the first conductive layer. The first conductive layer is located between two adjacent interlayer bonding layers and is insulated from the interlayer bonding layers.

3. The display panel according to claim 2, characterized in that, The interlayer bonding layer includes a plurality of second interlayer bonding layers, which are located between the second light-emitting device and the third light-emitting device, and the second light-emitting device layer and the third light-emitting device are bonded to each other through the second interlayer bonding layers; The display panel includes a second conductive layer, and the third light-emitting device is connected to the driving substrate through the second conductive layer. The second conductive layer is located between two adjacent inter-layer bonding layers of the second layer, and the second conductive layer is insulated from the inter-layer bonding layer of the second layer.

4. The display panel according to claim 3, characterized in that, The pixel unit includes multiple pixel groups, and the pixel group includes a first pixel and a second pixel; In any of the pixel groups, adjacent first pixels and second pixels share the first light-emitting device and the third light-emitting device; in two adjacent pixel groups, the second pixel of one pixel group is adjacent to the first pixel of the other pixel group, and the second pixel of one pixel group and the first pixel of the other pixel group share the second light-emitting device. In each of two adjacent pixel groups, the first conductive layer is located between two adjacent first light-emitting devices, and the first conductive layer is insulated from the first light-emitting devices; in any of the pixel groups, the second conductive layer is located between two adjacent second light-emitting devices, and the second conductive layer is insulated from the second light-emitting devices.

5. The display panel according to claim 3, characterized in that, The pixel unit includes multiple pixel groups, and the pixel group includes a first pixel and a second pixel; In any of the pixel groups, adjacent first pixels and second pixels share the first light-emitting device; in two adjacent pixel groups, the second pixel of one pixel group is adjacent to the first pixel of the other pixel group, and the second pixel of one pixel group and the first pixel of the other pixel group share the second light-emitting device. In each of two adjacent pixel groups, the first conductive layer is located between two adjacent first light-emitting devices, and the first conductive layer is insulated from the first light-emitting device; in any pixel group, the second light-emitting device and the third light-emitting device of the first pixel are bonded to each other through two second interlayer bonding layers, the second conductive layer is located between the second light-emitting device and the third light-emitting device, and the second conductive layer is insulated from the second light-emitting device.

6. The display panel according to claim 4 or 5, characterized in that, The pixel unit includes N adjacent pixel groups, and the N pixel groups are arranged sequentially along a first direction, where N is a positive integer greater than or equal to 2. In the first pixel group, the second light-emitting device of the first pixel is bonded to the first light-emitting device through two first interlayer bonding layers; in the Nth pixel group, the second light-emitting device of the second pixel is bonded to the first light-emitting device through two first interlayer bonding layers.

7. The display panel according to claim 6, characterized in that, The light-emitting device includes a second common light-emitting device, wherein in two adjacent pixel groups, the second pixel of one pixel group and the first pixel of the other pixel group share a second common light-emitting device; The first common electrode includes a first common sub-electrode, which is located between two adjacent pixel groups and is connected to the second common light-emitting device.

8. The display panel according to claim 7, characterized in that, Between two adjacent pixel groups, the first common sub-electrode is coaxially disposed with the first conductive layer.

9. The display panel according to claim 7, characterized in that, The display panel further includes a plurality of second common electrodes, which are located between the first light-emitting device and the second light-emitting device; The light-emitting device includes a first common light-emitting device, and in any pixel group, adjacent first pixels and second pixels share a first common light-emitting device; In this configuration, a second common electrode is connected to a first common light-emitting device.

10. A display device, characterized in that, The display device includes a terminal body and a display panel as described in any one of claims 1 to 9, wherein the terminal body and the display panel are integrated into one unit.

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