Display panel and display device

Abstract

The invention 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 stacked mode, and the interlayer bonding layer is arranged between the bottom bonding layer and the interlayer bonding layer. The light-emitting devices, close to the driving substrate, in the pixels are bonded with the driving substrate through bottom bonding layers, and every two adjacent light-emitting devices are bonded with each other through an interlayer bonding layer; wherein every two adjacent pixels share one or two light-emitting devices, so that the area proportion of a light-emitting area of the display panel is increased, light emitted by the light-emitting devices can be emitted out along the top of the display panel as much as possible, the light emitting efficiency can be effectively improved, and then the adverse effect caused by the size effect of an existing light-emitting device is reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Micro LED (μLED) chips have the characteristics of low power consumption, high brightness, ultra-high definition, high color saturation, faster response speed, longer service life and higher work efficiency. They can be widely used in smart watches, mobile devices, virtual reality (VR) devices, augmented reality (AR) devices and flexible display devices.

[0003] Micro light emitting diodes can be used in color micro display technology, usually using three micro light emitting diode structures of red, green and blue to form a color image; but as the size of micro light emitting diodes continues to shrink, the resulting size effect will also intensify, specifically manifested in the side wall area of ​​the micro light emitting diode as a proportion of the overall surface area increases, the light output from the top of the micro light emitting diode decreases, thereby affecting the luminous efficiency. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a display device to alleviate the deficiencies in the related art.

[0005] To achieve the above functions, the technical solutions provided by the embodiments of the present application are as follows:

[0006] An embodiment of the present application provides a display panel, including:

[0007] Driver substrate;

[0008] A pixel unit, arranged on one side of the driving substrate, the pixel unit comprising a plurality of pixels, and the pixels comprising a plurality of light emitting devices arranged in a stacked manner;

[0009] A bottom bonding layer, through which the light emitting device in the pixel close to the driving substrate is bonded to the driving substrate;

[0010] An interlayer bonding layer, wherein two adjacent light emitting devices are bonded to each other through the interlayer bonding layer;

[0011] Wherein, 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 which are sequentially stacked on the driving substrate, and the light emitting color of the first light emitting device is different from the light emitting color of the second light emitting device;

[0013] The interlayer bonding layer includes a plurality of first interlayer bonding layers, the plurality of first interlayer bonding layers 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, the second light emitting device is connected to the driving substrate via the first conductive layer, the first conductive layer is located between two adjacent first interlayer bonding layers, and the first conductive layer is insulated from the first interlayer bonding layer.

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

[0016] The interlayer bonding layer includes a plurality of second interlayer bonding layers, the plurality of second interlayer bonding layers 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, the third light emitting device is connected to the driving substrate via the second conductive layer, the second conductive layer is located between two adjacent second interlayer bonding layers, and the second conductive layer is insulated from the second interlayer bonding layer.

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

[0019] In any of the pixel groups, the first pixel and the second pixel adjacent to each other 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 shares the second light-emitting device with the first pixel of the other pixel group;

[0020] Among them, in 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 conductive layer is located between two adjacent second light-emitting devices, and the second conductive layer is insulated from the second light-emitting device.

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

[0022] In any of the pixel groups, the adjacent first pixel and the second pixel 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 shares the second light-emitting device with the first pixel of the other pixel group;

[0023] Among them, in 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 in sequence along the first direction, wherein N is a positive integer greater than or equal to 2;

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

[0026] In the display panel provided in this embodiment, the display panel further includes a first common electrode, the first common electrode is located at a 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 comprises a second common light emitting device, and in two adjacent pixel groups, the second pixel of one pixel group and the first pixel of another pixel group share the second common light emitting device;

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

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

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

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

[0032] Wherein, the second common electrode is connected to the first common light emitting device.

[0033] An embodiment of the present application provides a display device, which includes a terminal body and any one of the above-mentioned display panels, wherein the terminal body and the display panel are combined into one.

[0034] Beneficial effects of the embodiments of the present application: The embodiments of the present application provide a display panel and a display device, wherein the display panel includes a driving substrate, a pixel unit, a bottom bonding layer and an interlayer bonding layer, wherein the pixel unit is arranged on one side of the driving substrate, the pixel unit includes a plurality of pixels, and the pixel includes a plurality of light-emitting devices arranged in a stacked manner, wherein the light-emitting device close to the driving substrate in the pixel is bonded to the driving substrate through the bottom bonding layer, and two adjacent light-emitting devices are bonded to each other through an interlayer bonding layer; wherein two adjacent pixels share one or two light-emitting devices, thereby achieving an increase in the area ratio of the light-emitting region of the display panel, so that as much light as possible emitted by the light-emitting device can be emitted along its top, which can effectively improve the light extraction efficiency, thereby reducing the adverse effects of the size effect of the existing light-emitting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 A schematic diagram of the structure of a display panel provided in Embodiment 1 of the present application;

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

[0038] Figure 3 A schematic cross-sectional view of the Nth pixel unit group provided in the first embodiment of the present application;

[0039] Figure 4A schematic diagram of the structure of a display panel provided in the second embodiment of the present application;

[0040] Figure 5 A cross-sectional schematic diagram of a first pixel unit group provided in the second embodiment of the present application;

[0041] Figure 6 This is a cross-sectional schematic diagram of the Nth pixel unit group provided in the second embodiment of the present application. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] The embodiments of the present application provide a display panel and a display device. The following are detailed descriptions of each. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.

[0047] Embodiment 1

[0048] See also Figure 1 , is a schematic diagram of the structure of the display panel provided in Example 1 of the present application.

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

[0050] In this embodiment, the pixel 21 includes a plurality of light-emitting devices 210 stacked in sequence on the driving substrate 10. The light-emitting device 210 close to the driving substrate 10 in the pixel 21 is 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] Further, the pixel 21 includes a first light-emitting device 210A, a second light-emitting device 210B and a third light-emitting device 210C which are sequentially stacked on the driving substrate 10, and 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; wherein, two adjacent pixels 21 share one or two of the first light-emitting device 210A, the second light-emitting device 210B and the third light-emitting device 210C, and 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 light-emitting diodes (Micro LED, μLED).

[0052] It should be noted that, in this embodiment, the technical solution of the present application is illustrated by taking the first direction as the X direction, the horizontal direction being the same as the first direction X, the first light-emitting device 210A being a red micro-light-emitting diode, the second light-emitting device 210B being a green micro-light-emitting diode, and the third light-emitting device 210C being a blue micro-light-emitting diode as an example.

[0053] In the related art, micro-light emitting diodes can be applied to color micro-display technology, which usually uses at least three monochrome independent screens, namely, red, green and blue micro-light emitting diode structures to form a color image; currently, the color micro-display structure layout mainly adopts a design in which the red, green and blue micro-light emitting diodes are distributed horizontally, but in the horizontal distribution structure of the red, green and blue micro-light emitting diodes, the three micro-light emitting diodes in the horizontal direction constitute a color optical mechanism, and the pixel size of the horizontal color optical mechanism is relatively large, resulting in a small pixel density of the formed micro-display device, which brings challenges to micro-displays with small pixel sizes and high pixel density requirements.

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

[0055] Further, in the present embodiment, the interlayer bonding layer 50 includes a plurality of first interlayer bonding layers 51, and the plurality of first interlayer bonding layers 51 are located between the first light-emitting device 210A and the second light-emitting device 210B, and the first light-emitting device layer 210A and the second light-emitting device 210B are bonded to each other through the first interlayer bonding layer 51; wherein, 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, and 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 layer 51.

[0056] The interlayer bonding layer 50 also includes a plurality of second interlayer bonding layers 52, and the plurality of second interlayer bonding layers 52 are located between the second light-emitting device 210B and the third light-emitting device 210C, and the second light-emitting device layer 210B and the third light-emitting device 210C are bonded to each other through the second interlayer bonding layer 52; wherein, 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, and 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 layer 52.

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

[0058] It can be understood that, in this embodiment, the first light-emitting device 210A is 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 are bonded to each other through the first interlayer bonding layer 51, 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 layer 51, the second light-emitting device layer 210B and the third light-emitting device 210C are bonded to each other through the second interlayer bonding layer 52, 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 layer 52, thereby forming a display panel with a vertical pixel unit, which can form a color light source with a certain area and uniform brightness in a small volume, and effectively reduce the volume of the display panel.

[0059] Among them, 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 the present embodiment, the pixel unit 20 includes a plurality of pixel groups 20A, and the pixel group 20A includes a first pixel 211 and a second pixel 212; in any of the pixel groups 20A, the adjacent first pixel 211 and the second pixel 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 the two adjacent pixel groups 20A, the first conductive layer 61 is located between the two adjacent first light-emitting devices 210A, and the first conductive layer 61 is insulated from the first light-emitting device 210A; in any of the pixel groups 20A, the second conductive layer 62 is located between the 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 the micro-LED continues to shrink, the resulting size effect will also intensify, which is specifically manifested in that the proportion of the side wall area of ​​the micro-LED to the overall surface area increases, and the light output from the top of the micro-LED decreases, thereby affecting the luminous efficiency; this embodiment is arranged in any of the pixel groups 20A, so that the adjacent first pixel 211 and the second pixel 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 and the first pixel 211 of the other pixel group 20A share the second light-emitting device 210B, thereby achieving an increase in the proportion of the area of ​​the light-emitting area of ​​the display panel 1, so that as much light as possible from the light-emitting device 210 is emitted along its top, which can effectively improve the light output efficiency, thereby reducing the adverse effects of the size effect of the 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 can be understood that, compared with the existing display panel in which one pixel includes three stacked red, green and blue micro-light emitting diodes, as the size of the micro-light emitting diode decreases, the proportion of the side wall area of ​​the micro-light emitting diode to the overall surface area increases, and the light output from the top of the micro-light emitting diode decreases, thereby affecting the luminous efficiency. In this embodiment, in any of the pixel groups 20A, the adjacent first pixel 211 and the second pixel 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, achieving an increase in the proportion of the light-emitting area of ​​the light-emitting device, and thereby reducing the influence of the size effect.

[0064] In addition, it should be noted that in the existing display panel, each monochrome light-emitting device is prepared on the driving substrate in sequence, so there is a step difference between adjacent light-emitting devices, which is prone to cracks or disconnections due to the step difference 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 forming treatments, thereby increasing the difficulty of the preparation process; it can be understood that in this embodiment, in any of the pixel groups 20A, the adjacent first pixel 211 and the second pixel 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, thereby reducing the step difference between adjacent pixels 21, improving process efficiency and reducing process difficulty.

[0065] At the same time, this embodiment arranges that in any one of the pixel groups 20A, the adjacent first pixel 211 and the second pixel 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 and the first pixel 211 of the other pixel group 20A share the second light-emitting device 210B, thereby realizing the operation of one pixel driver controlling multiple pixels 21. That is, in the design provided in 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 A cross-sectional schematic diagram of a first group of pixel units provided in Embodiment 1 of the present application; Figure 3 This is a cross-sectional schematic diagram of the Nth pixel unit group provided in the first embodiment of the present 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, the plurality of first pixel areas 100 and the plurality of second pixel areas 200 are alternately distributed along a first direction X, the first pixel 211 is located in the first pixel area 100, and the second pixel 212 is located in the second pixel area 200; wherein the pixel unit 20 includes N groups of adjacent pixel groups 20A, and the N pixel groups 20A are arranged in sequence along the first direction X, wherein N is a positive integer greater than or equal to 2.

[0068] Among them, 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, in this embodiment, N is equal to 3, that is, the pixel unit 20 includes 3 groups of adjacent pixel groups 20A as an example to illustrate the technical solution of the present application.

[0070] In this embodiment, the display panel 1 also includes a first common electrode 31, which is located on a side of the pixel unit 20 away from the driving substrate 10, and the first common electrode 31 is respectively connected to the second light-emitting device 210B and the third light-emitting device 210C; the light-emitting device 210 includes a second common light-emitting device 211B, and 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] Further, in the present 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 can be understood that in this embodiment, by setting any of the pixel groups 20A, the adjacent first pixel 211 and the second pixel 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, and the first common electrode 31 is respectively connected to the second light-emitting device 210B and the third light-emitting device 210C, thereby achieving an increase in the proportion of the light-emitting area of ​​the light-emitting device, thereby reducing the influence of the 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 the present 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, the other end of the second common sub-electrode 312 extends from the pixel group 20A in a direction close to the driving substrate 10, and the other end of the second common sub-electrode 312 is connected to the third light-emitting layer 21C1 and the second light-emitting layer 21B1 in sequence.

[0074] It can be understood that this embodiment reduces the design of common electrodes in the related art by 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 in sequence, thereby avoiding too many common electrode designs occupying the light-emitting area of ​​the light-emitting layer in the pixel unit 20.

[0075] It should be noted that, in the present embodiment, the display panel 1 further includes a plurality of second common electrodes 32, and the second common electrodes 32 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 of the pixel groups 20A, adjacent first pixels 211 and second pixels 212 share the first common light-emitting device 211A; wherein, one of the second common electrodes 32 is connected to one of the first common light-emitting devices 211A.

[0076] Furthermore, in this embodiment, the display panel 1 also includes a plurality of lens sheets 70 (LENS), and the lens sheet 70 is located on a side of the pixel unit 20 away from the driving substrate 10, wherein one of the lens sheets 70 is arranged corresponding to one of the pixels 21, and in one of the lens sheets 70 and the corresponding pixel 21, 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 to the pixel unit 20.

[0077] It is understandable that in this embodiment, by disposing the lens sheet 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 extraction efficiency of the display panel 1 at a normal viewing angle.

[0078] Embodiment 2

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

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

[0081] In this embodiment, in any of the pixel groups 20A, the adjacent first pixel 211 and the second pixel 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 shares the second light-emitting device 210B with the first pixel 211 of the other pixel group 20A; wherein, in the two adjacent pixel groups 20A, the first conductive layer 61 is located between the two adjacent first light-emitting devices 210A, and the first conductive layer 61 is insulated from the first light-emitting device 210A; in any of the pixel groups 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 the present 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] Among them, 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, wherein the first pixel 211 and the second pixel 212 each include a separate third light-emitting device 210C; it can be understood that 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, which are only used for illustration, and this embodiment does not specifically limit the light-emitting color of the light-emitting device.

[0084] It can be 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 stacked in sequence on the driving substrate 10. 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. The first pixel 211 and the second pixel 212 each include a separate third light-emitting device 210C, and 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, thereby improving the display effect of the display panel 1.

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

[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 a display screen of a smart phone, tablet computer, laptop computer, smart bracelet, smart watch, smart glasses, smart helmet, desktop computer, smart TV or digital camera, and can even be used on electronic devices with flexible display screens.

[0088] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0089] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized in that: include: Driver substrate; A pixel unit, arranged on one side of the driving substrate, the pixel unit comprising a plurality of pixels, and the pixels comprising a plurality of light emitting devices arranged in a stacked manner; A bottom bonding layer, through which the light emitting device in the pixel close to the driving substrate is bonded to the driving substrate; An interlayer bonding layer, through which two adjacent light-emitting devices are bonded to each other; Wherein, two adjacent pixels share one or two light-emitting devices.

2. The display panel according to claim 1, characterized in that: The pixel comprises a first light emitting device and a second light emitting device which are sequentially stacked on the driving substrate, and the light emitting color of the first light emitting device is different from the light emitting color of the second light emitting device; The interlayer bonding layer includes a plurality of first interlayer bonding layers, the plurality of first interlayer bonding layers 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, the second light emitting device is connected to the driving substrate via the first conductive layer, the first conductive layer is located between two adjacent first interlayer bonding layers, and the first conductive layer is insulated from the first interlayer bonding layer.

3. The display panel according to claim 2, characterized in that: The pixel further includes a third light emitting device, the third light emitting device is located on a side of the second light emitting device away from the first light emitting device, and the light emitting colors of the first light emitting device, the second light emitting device and the third light emitting device are all different; The interlayer bonding layer includes a plurality of second interlayer bonding layers, the plurality of second interlayer bonding layers 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, the third light emitting device is connected to the driving substrate via the second conductive layer, the second conductive layer is located between two adjacent second interlayer bonding layers, and the second conductive layer is insulated from the second interlayer bonding layer.

4. The display panel according to claim 3, characterized in that: The pixel unit includes a plurality of pixel groups, and the pixel group includes a first pixel and a second pixel; In any of the pixel groups, the first pixel and the second pixel adjacent to each other 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 shares the second light-emitting device with the first pixel of the other pixel group; Among them, in 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 conductive layer is located between two adjacent second light-emitting devices, and the second conductive layer is insulated from the second light-emitting device.

5. The display panel according to claim 3, characterized in that: The pixel unit includes a plurality of pixel groups, and the pixel group includes a first pixel and a second pixel; In any of the pixel groups, the adjacent first pixel and the second pixel 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 shares the second light-emitting device with the first pixel of the other pixel group; Among them, in 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 in sequence along the first direction, wherein N is a positive integer greater than or equal to 2; Among them, in the first pixel group, the second light-emitting device of the first pixel is bonded to the first light-emitting device through two of the 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 of the first interlayer bonding layers.

7. The display panel according to claim 6, characterized in that: The display panel further comprises a first common electrode, the first common electrode is located at a 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; The light emitting device comprises a second common light emitting device, and in two adjacent pixel groups, the second pixel of one pixel group and the first pixel of another pixel group share the second common light emitting device; Wherein, the first common electrode includes a first common sub-electrode, the first common sub-electrode is located between two adjacent pixel groups, and the first common sub-electrode 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 arranged 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, wherein the second common electrodes are located between the first light emitting device and the second light emitting device; The light emitting device comprises a first common light emitting device, and in any pixel group, adjacent first pixels and second pixels share the first common light emitting device; Wherein, the second common electrode is connected to the first common light emitting device.

10. A display device, characterized in that: The display device comprises a terminal body and a display panel according to any one of claims 1 to 9, wherein the terminal body and the display panel are integrated into one body.

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