A display panel and a display device

Abstract

The application provides a display panel and a display device. The display panel comprises a display area, the display area comprises adjacent display regions and a transmission region, the display panel comprises a substrate and a light emitting device, the light emitting device is located on the substrate and in the display region, the light emitting device comprises a first electrode and a second electrode, the transmission region comprises a transmission hole, and an included angle between an arrangement direction between the first electrode and the second electrode and a direction of the light emitting device towards the transmission hole is θ, 75°≤θ≤105°. Since the overall film layer thickness of the display panel in the direction of the light emitting device towards the transmission hole is reduced, the arrangement direction between the first electrode and the second electrode and the direction of the light emitting device towards the transmission hole intersect or even are perpendicular, the film layer thickness difference between the first electrode and the second electrode of the light emitting device when bonded to the display panel is reduced, the probability of low bonding efficiency and poor bonding effect of the light emitting device caused by the film layer thickness difference is reduced, and the performance of the display panel is improved.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a display panel and a display device. Background Technology

[0002] With the rapid development of terminal devices, higher requirements are being placed on their displays. Current display technology is mainly divided into liquid crystal displays (LCDs), organic light-emitting diodes (OLEDs), and micro-LEDs. Micro-LED displays are a new generation of display technology that miniaturizes, thins, and arrays diode structures, enabling single-point light emission and offering advantages such as high brightness, high luminous efficiency, and low power consumption.

[0003] One of the current demands for micro LED displays is transparent display, which involves punching holes in non-pixel circuit areas to increase the transparency of the display panel. However, the display panel after punching holes may have uneven film thickness, resulting in poor bonding efficiency and bonding effect when bonding micro LEDs, thus affecting the performance of the display panel. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a display panel and a display device that can improve the bonding efficiency and bonding effect of micro light-emitting diodes while maintaining high transparency, thereby improving the performance of the display panel.

[0005] This application provides a display panel, which includes a display area and a transmissive area, comprising:

[0006] substrate;

[0007] A light-emitting device is located on the substrate and in the display area, and the light-emitting device includes a first electrode and a second electrode;

[0008] The transmission region includes a transmission aperture;

[0009] The angle between the arrangement direction of the first electrode and the second electrode and the direction of the light-emitting device toward the transmission hole is θ, where 75°≤θ≤105°.

[0010] Alternatively, θ = 90°.

[0011] Optionally, the distance between the first electrode and the second electrode and the transmission hole is at least greater than 3 μm.

[0012] Optionally, it also includes:

[0013] An organic layer is located between the light-emitting device and the substrate, and the organic layer has a first opening that overlaps with the transmission hole.

[0014] Optionally, it also includes:

[0015] A driving circuit layer is located between the organic layer and the substrate. The driving circuit layer includes at least one inorganic layer. The inorganic layer has a second opening, which overlaps with the transmission hole.

[0016] Optionally, the light-emitting device includes a first light-emitting device, a second light-emitting device, and a third light-emitting device, wherein the center wavelengths of the first light-emitting device, the second light-emitting device, and the third light-emitting device are λ1, λ2, and λ3, respectively, where λ1 > λ2 > λ3;

[0017] The arrangement direction between the first and second electrodes of the first light-emitting device, the arrangement direction between the first and second electrodes of the second light-emitting device, and the arrangement direction between the first and second electrodes of the third light-emitting device all form an angle θ with the direction of the light-emitting device toward the transmission hole.

[0018] Optionally, the transmission hole is rectangular or circular in a direction perpendicular to the plane of the substrate.

[0019] Optionally, the display area and the transmission area are arrayed;

[0020] The display area is surrounded by the transmissive area in a direction parallel to the plane of the substrate.

[0021] Optionally, it also includes:

[0022] A receiving electrode is located between the light-emitting device and the substrate. The receiving electrode includes a first receiving electrode and a second receiving electrode. The first receiving electrode overlaps and is connected to the first electrode, and the second receiving electrode overlaps and is connected to the second electrode.

[0023] This application also provides a display device, characterized in that it includes the display panel described in any one of the above embodiments.

[0024] This application provides a display panel and a display device. The display panel includes a display area, which includes an adjacent display region and a transmissive region. The display panel includes a substrate and a light-emitting device, wherein the light-emitting device is located on the substrate and in the display region. The light-emitting device includes a first electrode and a second electrode. The transmissive region includes a transmissive aperture to increase the transparency of the display panel. The angle between the arrangement direction of the first electrode and the second electrode and the direction of the light-emitting device toward the transmissive aperture is θ, where 75°≤θ≤105°. Since the overall film thickness of the display panel decreases in the direction of the light-emitting device toward the transmissive aperture, the arrangement direction of the first electrode and the second electrode intersects or is even perpendicular to the direction of the light-emitting device toward the transmissive aperture. This reduces the difference in film thickness between the first electrode and the second electrode of the light-emitting device when bonding to the display panel, reduces the probability of low bonding efficiency and poor bonding effect of the light-emitting device due to the difference in film thickness, and improves the performance of the display panel. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the structure of a display panel is shown;

[0027] Figure 2 This illustration shows a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0028] Figure 3 It is along Figure 2 A cross-sectional view of the display panel taken from the direction of BB'.

[0029] Figure 4 A schematic diagram of the structure of a light-emitting device provided in an embodiment of this application is shown;

[0030] Figure 5 A partial structural schematic diagram of a display panel provided in an embodiment of this application is shown;

[0031] Figure 6 A partial structural schematic diagram of another display panel provided in an embodiment of this application is shown;

[0032] Figure 7 A partial structural schematic diagram of another display panel provided in an embodiment of this application is shown;

[0033] Figure 8A partial structural schematic diagram of another display panel provided in an embodiment of this application is shown;

[0034] Figure 9 A schematic diagram of the planar structure of a display device provided in an embodiment of this application is shown. Detailed Implementation

[0035] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] This application is described in detail with reference to the schematic diagrams. When detailing the embodiments of this application, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this application. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0038] With the rapid development of terminal devices, higher requirements are being placed on their displays. Current display technology is mainly divided into liquid crystal displays (LCDs), organic light-emitting diodes (OLEDs), and micro-LEDs. Micro-LED displays are a new generation of display technology that miniaturizes, thins, and arrays diode structures, enabling single-point light emission and offering advantages such as high brightness, high luminous efficiency, and low power consumption.

[0039] Micro-LEDs are micrometers in size, and the spacing between each Micro-LED is also at the micrometer level. Therefore, a Micro-LED-based display panel contains a huge number of Micro-LEDs, which are bonded to the display panel through a bonding process.

[0040] One current demand for micro LED displays is transparent displays, which involve punching holes in non-pixel circuit areas to increase the transparency of the display panel. (Refer to...) Figure 1 The diagram shown is a structural schematic of a display panel.

[0041] Figure 1The display panel structure includes a substrate 10, a driving circuit layer 20, an organic layer 30, a bonding electrode 40, and a Micro-LED 50. The Micro-LED 50 is electrically connected to the driving circuit layer 20 via the bonding electrode 40, and includes an anode 51 and a cathode 52. The display panel also includes a punch-hole area 60, which is a non-pixel circuit area, i.e., an area without the Micro-LED 50.

[0042] Specifically, after forming the driving circuit layer 20, a hole-cutting process can be performed in the hole-cutting region 60, and then an organic layer 30 can be formed on the driving circuit layer 20. Since the driving circuit layer 20 is not a continuous film after the hole-cutting process, the uniformity of the flow of the organic layer 30 near the hole-cutting region 60 is poor, and the organic layer 30 becomes thinner closer to the hole-cutting region 60. That is, the thickness of the organic layer 30 gradually decreases in the direction close to the hole-cutting region 60.

[0043] Because the thickness of the organic layer 30 is uneven, the bonding electrode 40 formed on it also has a height difference, that is, the bonding electrode 40 also has a tilting tendency. The closer to the hole area 60, the greater the tilting tendency of the bonding electrode 40. As a result, when Micro-LED 50 is bonded on the bonding electrode 40, the height difference of the bonding electrode 40 greatly affects the bonding efficiency and bonding effect.

[0044] In other words, the display panel after the holes are punched may have uneven film thickness, which will result in poor bonding efficiency and bonding effect when bonding the micro light-emitting diodes, thus affecting the performance of the display panel.

[0045] However, the inventors discovered through research that in the current display panel structure, the arrangement direction between the anode 51 and cathode 52 of the Micro-LED 50 is the first direction, and the direction of uneven thickness of the organic layer 30 is also the first direction. That is, the arrangement direction between the anode 51 and cathode 52 is parallel to the direction of uneven thickness of the organic layer 30, which leads to poor bonding efficiency and bonding effect of the Micro-LED 50 during bonding due to uneven film thickness. In other words, the problem of poor bonding efficiency and bonding effect can be solved by changing the arrangement direction between the anode 51 and cathode 52 of the Micro-LED 50.

[0046] Based on this, embodiments of this application provide a display panel and a display device. The display panel includes a display area, which includes an adjacent display region and a transmissive region. The display panel includes a substrate and a light-emitting device, wherein the light-emitting device is located on the substrate and in the display region. The light-emitting device includes a first electrode and a second electrode. The transmissive region includes a transmissive aperture to increase the transparency of the display panel. The angle between the arrangement direction of the first electrode and the second electrode and the direction of the light-emitting device toward the transmissive aperture is θ, where 75°≤θ≤105°. Since the overall film thickness of the display panel decreases in the direction of the light-emitting device toward the transmissive aperture, the arrangement direction of the first electrode and the second electrode intersects or is even perpendicular to the direction of the light-emitting device toward the transmissive aperture. This reduces the difference in film thickness between the first electrode and the second electrode of the light-emitting device when bonding to the display panel, reduces the probability of low bonding efficiency and poor bonding effect of the light-emitting device due to the difference in film thickness, and improves the performance of the display panel.

[0047] To better understand the technical solution and effects of this application, the specific embodiments will be described in detail below with reference to the accompanying drawings.

[0048] refer to Figure 2 The diagram shown is a structural schematic of a display panel 100 provided in an embodiment of this application. Figure 3 It is along Figure 2 A cross-sectional view of the display panel taken from the direction of BB'.

[0049] The display panel 100 provided in this embodiment includes a display area AA and a non-display area NA. The display area AA is the area used for display, and the non-display area NA is the area used for setting the circuit structure that drives the display panel to display.

[0050] In the embodiments of this application, in order to improve the transparency of the display panel, the display area AA of the display panel 100 includes an adjacent display area 101 and a transmission area 102, wherein the display area 101 is the area for display, and the transmission area 102 is the area for light transmission, so as to increase the transparency of the display panel.

[0051] In the embodiments of this application, reference is made to Figure 3 As shown, the display panel 100 may include a substrate 110. The substrate 110 may include an insulating material (e.g., it may be made of an insulating material), which may be glass, quartz, or a polymer resin. The substrate 110 may be a flexible substrate that can be bent, folded, and / or rolled. As an example, the substrate 110 may include polyimide.

[0052] Specifically, in a direction parallel to the plane of the substrate 110, the display area 101 and the transmissive area 102 can be arranged in an array. Specifically, the display area 101 can be surrounded by the transmissive area 102, meaning the display area 101 is surrounded by the transmissive area 102. (Refer to...) Figure 2 As shown.

[0053] In the embodiments of this application, the display panel 100 may include a light-emitting device 120, which is located on the substrate 110 and in the display area 101.

[0054] The light-emitting device 120 may include a micro-LED, such as an inorganic micro-LED. Since the display area 101 is arrayed in the substrate 110, the light-emitting device 120 may also be arrayed in the substrate 110 accordingly.

[0055] refer to Figure 4 The diagram shown is a structural schematic of a light-emitting device provided in an embodiment of this application. Figure 4 The light-emitting device 120 shown can be a miniature light-emitting diode, which includes a light-emitting body and contact electrodes. The contact electrodes include a first electrode 121 and a second electrode 122, which are used for electrical lead-out of the miniature light-emitting diode.

[0056] Specifically, one of the first electrode 121 and the second electrode 122 is a cathode and the other is an anode. For example, the first electrode 121 is a cathode and the second electrode 122 is an anode, or the first electrode 121 is an anode and the second electrode 122 is a cathode.

[0057] The light-emitting body includes an N-type semiconductor layer 123, an active layer 124 and a P-type semiconductor layer 125 stacked sequentially. The active layer 124 can be a quantum well layer. The first electrode 121 is electrically connected to the N-type semiconductor layer 123 and the second electrode 122 is electrically connected to the P-type semiconductor layer 125.

[0058] The miniature light-emitting diode may also include an insulating layer 126, which includes a portion surrounding the sidewall of the light-emitting body and a portion located on the side of the light-emitting body that is connected to the contact electrode. The insulating layer 126 exposes the portion of the light-emitting body that is connected to the contact electrode.

[0059] Specifically, the material of the N-type semiconductor layer 123 can be N-type doped gallium nitride, the material of the P-type semiconductor layer 125 can be P-type doped gallium nitride, the material of the active layer 123 can be indium gallium nitride, and the materials of the first electrode 121 and the second electrode 122 can be materials with good conductivity, such as metal materials.

[0060] The size of a micro LED can be less than 200 micrometers, further less than 100 micrometers, or less than 50 micrometers. Furthermore, the size range of a micro LED can be 1 to 10 micrometers.

[0061] In the embodiments of this application, reference is made to Figure 3 As shown, the display panel 100 may further include an organic layer 130 and a driving circuit layer 140, wherein the organic layer 130 is located between the light-emitting device 120 and the substrate 110, and the driving circuit layer 140 is located between the organic layer 130 and the substrate 110.

[0062] The driving circuit layer 140 includes a plurality of pixel circuits, each pixel circuit including an active layer 141, a gate insulating layer 142, a first metal layer 143, an interlayer insulating layer 144, and a second metal layer 145. The active layer 141 is located on the substrate 110 and may include polysilicon, monocrystalline silicon, low-temperature polysilicon, amorphous silicon, or oxide semiconductor. When the active layer 141 includes polysilicon (e.g., made of polysilicon), the ion-doped active layer 141 may be conductive. The gate insulating layer 142 may be formed on the active layer 141. The gate insulating layer 142 may include an inorganic layer (e.g., may be made of an inorganic layer), such as a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The first metal layer 143 may be formed on the gate insulating layer 142. The first metal layer 143 may be a single layer or multiple layers comprising any one or more of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and their alloys (e.g., made from any one or more of them). An interlayer insulating layer 144 may be formed on the first metal layer 143. The interlayer insulating layer 144 may include inorganic layers (e.g., may be made from inorganic layers), such as silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, or aluminum oxide. The interlayer insulating layer 144 may include multiple inorganic layers. A second metal layer 145 may be formed on the interlayer insulating layer 144, and the second metal layer 145 may be a single layer or multiple layers comprising any one or more of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and their alloys (e.g., made from any one or more of them).

[0063] An organic layer 130 may be formed on the second metal layer 145 to flatten the steps caused by the second metal layer 145. The organic layer 130 may be made of an organic material, such as acrylic resin, epoxy resin, phenolic resin, polyamide resin or polyimide resin.

[0064] In embodiments of this application, a buffer layer 150 may be further included between the driving circuit layer 140 and the substrate 110. The buffer layer 150 is disposed on the substrate 110 to protect the transistors and light-emitting devices 120 in the driving circuit layer 140 from moisture entering through the substrate 110. The buffer layer 150 may be formed of an inorganic material, specifically, it may consist of multiple inorganic layers stacked alternately on top of each other. For example, the buffer layer 150 may be a multilayer in which one or more inorganic layers selected from silicon nitride, silicon oxynitride, silicon oxide, titanium oxide, and aluminum oxide are stacked alternately.

[0065] In embodiments of this application, the transmissive region 102 may include a transmissive aperture 160, which may penetrate the organic layer 130, the driving circuit layer 140, and the buffer layer 150, in order to improve the transparency of the display panel in the transmissive region 102.

[0066] In practical applications, the organic layer 130 may have a first opening, which overlaps with the transmission hole 160 in a direction perpendicular to the plane of the substrate 110. The gate insulating layer 142 and the interlayer insulating layer 144 included in the driving circuit layer 140 may have a second opening, which overlaps with the transmission hole 160 in a direction perpendicular to the plane of the substrate 110.

[0067] Specifically, in the direction perpendicular to the plane of the substrate 110, the transmission aperture 160 can be polygonal, circular, or elliptical, etc. Polygonal shapes can be, for example, triangular, quadrilateral, pentagonal, or hexagonal, etc. Quadrilateral shapes can be, for example, rectangular, square, or rhomboid, etc. The shape of the transmission aperture 160 can be arbitrary and can be determined according to the actual situation.

[0068] In practical applications, the organic layer 130 can be formed on the driving circuit layer 140 after the transmission hole 160 is formed. Due to the presence of the transmission hole 160, the driving circuit layer 140 is not a continuous film layer. When the organic layer 130 is formed, there may be poor flow uniformity in the region near the transmission hole 160. The closer the organic layer 130 is to the transmission hole 160, the thinner it becomes. That is, in the direction parallel to the plane of the substrate 110, the thickness of the organic layer 130 gradually decreases in the direction near the transmission hole 160. In other words, the direction of non-uniform thickness of the organic layer 30 is towards the transmission hole 160.

[0069] Figure 1In the display panel structure shown, the bonding efficiency and bonding effect of the light-emitting device 120 are poor because the arrangement direction between the first electrode 121 and the second electrode 122 of the light-emitting device 120 is parallel to the direction of uneven thickness of the organic layer 30. In other words, the bonding efficiency and bonding effect of the light-emitting device 120 are poor when bonding due to the uneven film thickness. That is to say, the bonding direction between the first electrode 121 and the second electrode 122 of the light-emitting device 120 can be changed to reduce the bonding efficiency and bonding effect when the first electrode 121 and the second electrode 122 of the light-emitting device 120 are placed on the organic layer 30 with a large thickness difference.

[0070] In the embodiments of this application, the angle between the arrangement direction of the first electrode 121 and the second electrode 122 and the direction of the light-emitting device 120 toward the transmission hole 160 is θ, where 75°≤θ≤105°. Figure 5 The diagram shown is a partial structural schematic of a display panel provided in an embodiment of this application. Specifically, the arrangement direction between the first electrode 121 and the second electrode 122 is the second direction, and the direction of the light-emitting device 120 toward the transmission hole 160 is the third direction. The second direction and the third direction are not parallel; that is, the arrangement direction between the first electrode 121 and the second electrode 122 is not parallel to the direction of uneven thickness of the organic layer 30. The second direction and the third direction intersect, and the angle between the second direction and the third direction is θ, where 75°≤θ≤105°.

[0071] When the included angle θ between the second direction and the third direction is in the range of [75°, 105°], the difference in film thickness between the first electrode 121 and the second electrode 122 is small or even non-existent, which can avoid the problem of poor bonding efficiency and bonding effect caused by the different film thickness of the organic layer 130.

[0072] In other words, because the thickness of the organic layer 130 in the direction of the light-emitting device 120 toward the transmission hole 160 is reduced, the overall thickness of the display panel 100 is reduced. Therefore, the arrangement direction between the first electrode 121 and the second electrode 122 intersects or is even perpendicular to the direction of the light-emitting device 120 toward the transmission hole 160. This can reduce the difference in film thickness between the first electrode 121 and the second electrode 122 of the light-emitting device 120 when they are bonded to the display panel 100, reduce the probability of low bonding efficiency and poor bonding effect of the light-emitting device 120 due to the difference in film thickness, and improve the performance of the display panel.

[0073] In the embodiments of this application, the angle between the arrangement direction of the first electrode 121 and the second electrode 122 and the direction of the light-emitting device 120 toward the transmission hole 160 can be 90°, as shown in the reference. Figure 5As shown, the arrangement direction between the first electrode 121 and the second electrode 122 is perpendicular to the direction of the light-emitting device 120 toward the transmission hole 160. This allows the first electrode 121 and the second electrode 122 to be positioned at the same film thickness of the organic layer 130, thus completely avoiding the problem of poor bonding efficiency and bonding effect caused by the change in the film thickness of the organic layer 130.

[0074] In the embodiments of this application, the angle between the arrangement direction of the first electrode 121 and the second electrode 122 and the direction of the light-emitting device 120 toward the transmission hole 160 can be 75°, as shown in the reference. Figure 6 The diagram shown is a partial structural schematic of another display panel provided in an embodiment of this application. When the angle between the arrangement direction between the first electrode 121 and the second electrode 122 and the direction of the light-emitting device 120 toward the transmission hole 160 is 75°, the difference in film thickness of the organic layer 130 at the positions of the first electrode 121 and the second electrode 122 is small, and the impact on the bonding efficiency of the light-emitting device 120 is low.

[0075] In the embodiments of this application, the angle between the arrangement direction of the first electrode 121 and the second electrode 122 and the direction of the light-emitting device 120 toward the transmission hole 160 can be 105°, as shown in the reference. Figure 7 The diagram shown is a partial structural schematic of another display panel provided in an embodiment of this application. When the angle between the arrangement direction between the first electrode 121 and the second electrode 122 and the direction of the light-emitting device 120 toward the transmission hole 160 is 105°, the difference in film thickness of the organic layer 130 at the positions of the first electrode 121 and the second electrode 122 is small, and the impact on the bonding efficiency of the light-emitting device 120 is low.

[0076] In the embodiments of this application, the light-emitting device 120 may include a first light-emitting device 120-1, a second light-emitting device 120-2, and a third light-emitting device 120-3. The center wavelengths of the first light-emitting device 120-1, the second light-emitting device 120-2, and the third light-emitting device 120-3 are λ1, λ2, and λ3, respectively, where λ1 > λ2 > λ3. That is, the first light-emitting device 120-1, the second light-emitting device 120-2, and the third light-emitting device 120-3 emit light of different wavelengths and can constitute a pixel unit.

[0077] As an example, the first light-emitting device 120-1 emits red light, the second light-emitting device 120-2 emits green light, and the third light-emitting device 120-3 emits blue light.

[0078] In practical applications, the arrangement direction between the first electrode 121 and the second electrode 122 of the light-emitting device 120 in the same pixel unit can be the same, and the angle between them and the direction of the light-emitting device 120 toward the transmission aperture 160 can also be the same. (Refer to...) Figure 6 or Figure 7 As shown, the arrangement direction between the first electrode 121 and the second electrode 122 of the first light-emitting device 120-1, the arrangement direction between the first electrode 121 and the second electrode 122 of the second light-emitting device 120-2, and the arrangement direction between the first electrode 121 and the second electrode 122 of the third light-emitting device 120-3 are all at an angle θ with the direction of the light-emitting device 120 toward the transmission hole 160, so that the light-emitting devices 120 of the same pixel unit are not affected by the thickness of the organic layer 130 film.

[0079] In the embodiments of this application, the shape of the transmission hole 160 does not affect the angle θ between the arrangement direction of the first electrode 121 and the second electrode 122 of the light-emitting device 120 in the same pixel unit and the direction of the light-emitting device 120 toward the transmission hole 160. That is, the arrangement direction between the first electrode 121 and the second electrode 122 of the light-emitting device 120 can be adjusted accordingly based on the shape of the transmission hole 160.

[0080] refer to Figure 8 The diagram shown is a partial structural schematic of another display panel provided in an embodiment of this application. In the direction perpendicular to the plane of the substrate 110, the transmission hole 160 is circular. The arrangement directions between the first electrode 121 and the second electrode 122 of the first light-emitting device 120-1, the first electrode 121 and the second electrode 122 of the second light-emitting device 120-2, and the first electrode 121 and the second electrode 122 of the third light-emitting device 120-3 all form an angle θ with the direction of the light-emitting device 120 toward the transmission hole 160, and θ = 90°. That is, the arrangement directions between the first electrode 121 and the second electrode 122 of the first light-emitting device 120-1, the first electrode 121 and the second electrode 122 of the second light-emitting device 120-2, and the first electrode 121 and the second electrode 122 of the third light-emitting device 120-3 are all perpendicular to the direction of the light-emitting device 120 toward the transmission hole 160.

[0081] In practical applications, when the shape of the transmission aperture 160 changes, the arrangement of the light-emitting devices 120 can be changed accordingly, and the position of the pixel circuit of the driving circuit layer 140 that provides driving for the light-emitting devices 120 can also be changed accordingly.

[0082] In the embodiments of this application, the distance H between the first electrode 121 and the second electrode 122 of the light-emitting device 120 and the transmission hole 160 is at least greater than 3 micrometers (μm). The purpose of this arrangement is to avoid the situation where the organic layer 130 or the pixel circuit layer 140 collapses due to the close distance between the light-emitting device 120 and the transmission hole 160.

[0083] In the embodiments of this application, the display panel 100 may further include a receiving electrode 170, which is located between the light-emitting device 120 and the substrate 110. Specifically, the receiving electrode 170 is located between the light-emitting device 120 and the organic layer 130, and the receiving electrode 170 includes a first receiving electrode and a second receiving electrode.

[0084] Specifically, the first receiving electrode can be connected to the first electrode 121, and the second receiving electrode can be connected to the second electrode 122, so as to realize the electrical connection between the light-emitting device 120 and the driving circuit layer 140.

[0085] Specifically, in the direction perpendicular to the plane of the substrate 110, the first receiving electrode can overlap with the first electrode 121, and the second receiving electrode can overlap with the second electrode 122.

[0086] This application provides a display panel including a display area and a transmissive area. The display panel includes a substrate and a light-emitting device, wherein the light-emitting device is located on the substrate and in the display area. The light-emitting device includes a first electrode and a second electrode. The transmissive area includes a transmissive aperture to increase the transparency of the display panel. The angle between the arrangement direction of the first electrode and the second electrode and the direction of the light-emitting device toward the transmissive aperture is θ, where 75°≤θ≤105°. Since the overall film thickness of the display panel decreases in the direction of the light-emitting device toward the transmissive aperture, the arrangement direction of the first electrode and the second electrode intersects or is even perpendicular to the direction of the light-emitting device toward the transmissive aperture. This reduces the difference in film thickness between the first electrode and the second electrode when bonding to the display panel, reduces the probability of low bonding efficiency and poor bonding effect of the light-emitting device due to the difference in film thickness, and improves the performance of the display panel.

[0087] This application also provides a display device, including the display panel described in the above embodiments.

[0088] refer to Figure 9This is a schematic diagram of the planar structure of a display device provided in an embodiment of this application. As shown in the figure, the display device 1000 includes a display panel 100, which is the display panel 100 described in any of the above embodiments. The display device 1000 provided in this application embodiment can be other display devices with display functions, such as mobile phones, computers, televisions, and vehicle-mounted display devices; this application embodiment does not specifically limit its capabilities. The display device 1000 provided in this application embodiment has the beneficial effects of the display panel 100 provided in this application embodiment. For details, please refer to the specific description of the display panel in the above embodiments; this application embodiment will not repeat the description here.

[0089] The above description is merely a preferred embodiment of this application. Although this application has disclosed preferred embodiments above, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of this application. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solutions of this application shall still fall within the protection scope of the technical solutions of this application.

Claims

1. A display panel, characterized in that, The display panel includes a display area, which comprises adjacent display areas and a transmissive area. The display areas and the transmissive areas are arranged in an array. In a direction parallel to the plane of the substrate, the transmissive area surrounds the display area and includes: substrate; A light-emitting device is located on the substrate and in the display area, and the light-emitting device includes a first electrode and a second electrode; For a target transmission region located in one of the multiple transmission regions surrounding the display area, the target transmission region includes a transmission aperture; For the first electrode and the second electrode located in a portion of the display area near the target transmission area, the angle between the arrangement direction of the first electrode and the second electrode and the direction of the light-emitting device toward the transmission hole is θ, 75°≤θ≤105°, the arrangement direction is the direction from the first electrode to the second electrode, and the arrangement direction is parallel to the plane of the substrate.

2. The display panel according to claim 1, characterized in that, θ = 90°.

3. The display panel according to claim 1, characterized in that, The distance between the first electrode and the second electrode and the transmission hole is at least greater than 3 μm.

4. The display panel according to claim 1, characterized in that, Also includes: An organic layer is located between the light-emitting device and the substrate, and the organic layer has a first opening that overlaps with the transmission hole.

5. The display panel according to claim 4, characterized in that, Also includes: A driving circuit layer is located between the organic layer and the substrate. The driving circuit layer includes at least one inorganic layer. The inorganic layer has a second opening, which overlaps with the transmission hole.

6. The display panel according to claim 1, characterized in that, The light-emitting device includes a first light-emitting device, a second light-emitting device, and a third light-emitting device, wherein the center wavelengths of the first light-emitting device, the second light-emitting device, and the third light-emitting device are λ1, λ2, and λ3, respectively, where λ1 > λ2 > λ3; The arrangement direction between the first and second electrodes of the first light-emitting device, the arrangement direction between the first and second electrodes of the second light-emitting device, and the arrangement direction between the first and second electrodes of the third light-emitting device all form an angle θ with the direction of the light-emitting device toward the transmission hole.

7. The display panel according to claim 1, characterized in that, The transmission hole is rectangular or circular in a direction perpendicular to the plane of the substrate.

8. The display panel according to claim 1, characterized in that, Also includes: A receiving electrode is located between the light-emitting device and the substrate. The receiving electrode includes a first receiving electrode and a second receiving electrode. The first receiving electrode overlaps and is connected to the first electrode, and the second receiving electrode overlaps and is connected to the second electrode.

9. A display device, characterized in that, Includes the display panel as described in any one of claims 1-8.

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