Display panel and display device

Abstract

A display panel has a display area including a primary display area and a secondary display area. The display panel includes a defining layer and a light emitting layer. The defining layer is provided with a first opening located in the display area. The light-emitting layer comprises a light-emitting pattern, and the light-emitting pattern comprises a first sub-part and a second sub-part which are connected. The first sub-portion is located in the first opening, and the second sub-portion is located on the defining layer. A plurality of light-emitting patterns which are located in the main display area and used for emitting light of different colors form a first light-emitting pattern group, and a plurality of light-emitting patterns which are located in the auxiliary display area and used for emitting light of different colors form a second light-emitting pattern group. The arrangement density of the plurality of first light-emitting pattern groups is greater than the arrangement density of the plurality of second light-emitting pattern groups. The number of light-emitting patterns included in the first light-emitting pattern group is different from the number of light-emitting patterns included in the second light-emitting pattern group. The sum of the areas of the orthographic projections of the plurality of first sub-parts in the first light-emitting pattern group is larger than the sum of the areas of the orthographic projections of the plurality of first sub-parts in the second light-emitting pattern group.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) display technology is a technology that uses luminescent materials to emit light under the drive of electric current to achieve display. OLED displays have the advantages of ultra-light, ultra-thin, high brightness, wide viewing angle, low voltage, low power consumption, fast response, high definition, shock resistance, bendability, low cost, simple process, less raw materials, high luminous efficiency and wide temperature range. Summary of the invention

[0003] In one aspect, a display panel is provided. The display panel comprises: a display area. The display area comprises: a main display area and a sub-display area. The sub-display area is located at least on one side of the main display area. The display panel comprises a defining layer and a light-emitting layer which are stacked. The defining layer comprises a plurality of first openings located in the main display area and the sub-display area and a plurality of light-transmitting portions located in the sub-display area. The light-emitting layer comprises a plurality of light-emitting patterns, at least one of which comprises a first sub-portion and a second sub-portion connected to each other. The first sub-portion is located in the first opening, and the second sub-portion is located on the defining layer. A plurality of light-emitting patterns located in the main display area and used for emitting light of different colors constitute a first light-emitting pattern group, and a plurality of light-emitting patterns located in the sub-display area and used for emitting light of different colors constitute a second light-emitting pattern group. The arrangement density of the plurality of first light-emitting pattern groups in the main display area is greater than the arrangement density of the plurality of second light-emitting pattern groups in the sub-display area. The number of light-emitting patterns included in the first light-emitting pattern group is different from the number of light-emitting patterns included in the second light-emitting pattern group. The sum of the areas of the orthographic projections of the plurality of first sub-divisions in the first light emitting pattern group on the plane where the display panel is located is greater than the sum of the areas of the orthographic projections of the plurality of first sub-divisions in the second light emitting pattern group on the plane where the display panel is located.

[0004] In some embodiments, the sum of the areas of the orthographic projections of the multiple first sub-divisions in the first light-emitting pattern group on the plane where the display panel is located is 2 to 4 times the sum of the areas of the orthographic projections of the multiple first sub-divisions in the second light-emitting pattern group on the plane where the display panel is located.

[0005] In some embodiments, the plurality of light-emitting patterns include: a plurality of first patterns, a plurality of second patterns, and a plurality of third patterns for emitting light of different colors. The first light-emitting pattern group includes a first pattern, two second patterns, and a third pattern. In the first light-emitting pattern group, a line connecting the centers of the orthographic projections of the two second patterns on the plane where the display panel is located intersects with a line connecting the centers of the orthographic projections of the first pattern and the third pattern on the plane where the display panel is located. The second light-emitting pattern group includes two adjacent first subgroups. The first subgroup includes a first pattern, a second pattern, and a third pattern. In the first subgroup, a line connecting the centers of the orthographic projections of the first pattern, the second pattern, and the third pattern on the plane where the display panel is located is a triangle.

[0006] In some embodiments, one of the second pattern and the third pattern in the second light-emitting pattern group is a target pattern and the other is a non-target pattern. The plurality of light-emitting patterns in the second light-emitting pattern group are arranged in two rows, two of the target patterns are arranged in a first row, and two of the non-target patterns and two of the first patterns are alternately arranged in a second row along the direction of the row. The center of the orthographic projection of the adjacent first pattern on the plane where the display panel is located and the center of the orthographic projection of the non-target pattern on the plane where the display panel is located are staggered in the first direction with the center of the orthographic projection of the target pattern on the plane where the display panel is located. The first direction is perpendicular to the row direction and parallel to the plane where the display panel is located.

[0007] In some embodiments, in the second light emitting pattern group, a spacing range between two first sub-portions of the target patterns includes: 6 μm to 13 μm.

[0008] In some embodiments, the second sub-portions of the two target patterns are connected to each other.

[0009] In some embodiments, a size of the first sub-portion of the target pattern along the row direction is greater than or equal to a size of the first sub-portion of the target pattern along the first direction.

[0010] In some embodiments, in the first subset, in the first direction, the first sub-portion of the target pattern is partially opposite to the first sub-portion of the first pattern and the first sub-portion of the non-target pattern.

[0011] In some embodiments, in the second light emitting pattern group, the orthographic projection patterns of the two first subgroups on the plane where the display panel is located are centrally symmetric about the center point of the orthographic projection pattern of the second light emitting pattern group on the plane where the display panel is located.

[0012] In some embodiments, in the second light-emitting pattern group, the shape of the orthographic projection of the first sub-portion on the plane where the display panel is located includes a rectangle, a square, a circle, or a curved circle. The curved circle includes a semicircular arc edge and a semi-elliptical arc edge connected to each other, and the major axis of the semi-ellipse is equal to the diameter of the semicircle.

[0013] In some embodiments, in the curved circle, compared with the arc edge of the semicircle, the arc edge of the semi-ellipse is farther away from the center of the second light-emitting pattern group.

[0014] In some embodiments, in the second light-emitting pattern group, in the same light-emitting pattern, the second sub-portion surrounds the first sub-portion, and the shape of the outer boundary line of the orthographic projection of the second sub-portion of the light-emitting pattern on the plane where the display panel is located is the same as the shape of the outer boundary line of the orthographic projection of the first sub-portion of the light-emitting pattern on the plane where the display panel is located.

[0015] In some embodiments, in the auxiliary display area, an orthographic projection of at least one of the second sub-portions on the plane where the display panel is located partially overlaps or has no overlap with an orthographic projection of the light-transmitting portion on the plane where the display panel is located.

[0016] In some embodiments, the plurality of second light emitting pattern groups are arranged in a plurality of rows. In two adjacent rows of second light emitting pattern groups, two adjacent second light emitting pattern groups in different rows are staggered, and two adjacent second light emitting device groups in the same row are separated by the light-transmitting portion.

[0017] In some embodiments, the light-emitting layer includes a plurality of redundant patterns. The plurality of redundant patterns are located in the auxiliary display area, and the redundant patterns at least cover a portion of one of the light-transmitting portions. At least one redundant pattern is connected to an adjacent light-emitting pattern.

[0018] In some embodiments, the plurality of redundant patterns include: a plurality of first redundant patterns, a plurality of second redundant patterns, and a plurality of third redundant patterns. The plurality of light-emitting patterns include: a plurality of first patterns, a plurality of second patterns, and a plurality of third patterns for emitting light of different colors. The light-emitting layer includes a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer. The first pattern and the first redundant pattern are located in the first light-emitting layer, the second pattern and the second redundant pattern are located in the second light-emitting layer, and the third pattern and the third redundant pattern are located in the third light-emitting layer.

[0019] In some embodiments, the second light-emitting pattern group includes two adjacent first subgroups. The first subgroup includes a first pattern, a second pattern and a third pattern. In the first subgroup, the lines connecting the centers of the orthographic projections of the first pattern, the second pattern and the third pattern on the plane where the display panel is located are in a triangular shape. The first redundant pattern is arranged at intervals with the first pattern, and the lines connecting the first redundant pattern and the centers of the orthographic projections of the two first patterns of the second light-emitting pattern group on the plane where the display panel is located are in a triangular shape, and / or the second redundant pattern is arranged at intervals with the second pattern, and the lines connecting the second redundant pattern and the centers of the orthographic projections of the two second patterns of the second light-emitting pattern group on the plane where the display panel is located are in a triangular shape.

[0020] In some embodiments, the third redundant pattern is connected to two adjacent third patterns. The orthographic projections of the first redundant pattern and the second redundant pattern and the third redundant pattern on the plane where the display panel is located at least partially overlap.

[0021] In some embodiments, the second light-emitting pattern group includes two adjacent first subgroups. The first subgroup includes a first pattern, a second pattern and a third pattern. And in the first subgroup, the line between the centers of the orthographic projections of the first pattern, the second pattern and the third pattern on the plane where the display panel is located is a triangle. Two second patterns are arranged adjacent to each other. The first redundant pattern is connected to the adjacent first pattern, and the second redundant pattern is connected to one or two adjacent second patterns. The third redundant pattern is connected to the adjacent third pattern. The second redundant pattern partially overlaps with the orthographic projection of the adjacent first redundant pattern on the plane where the display panel is located, the second redundant pattern partially overlaps with the orthographic projection of the adjacent third redundant pattern on the plane where the display panel is located, and the orthographic projections of the first redundant pattern and the adjacent third redundant pattern on the plane where the display panel is located do not overlap.

[0022] In some embodiments, the light emitting pattern includes: a first pattern, a second pattern, and a third pattern for emitting light of different colors. The first pattern is used to emit red light, the second pattern is used to emit green light, and the third pattern is used to emit blue light. Alternatively, the first pattern is used to emit red light, the second pattern is used to emit blue light, and the third pattern is used to emit green light.

[0023] In another aspect, a display device is provided, comprising: a display panel as described in any of the above embodiments and an optical element, wherein the optical element is located in a secondary display area of ​​the display panel and on a non-light emitting side of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the products involved in the embodiments of the present disclosure.

[0025] Figure 1 is a structural diagram of a display device according to some embodiments of the present disclosure;

[0026] Figure 2 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0027] Figure 3 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0028] Figure 4 is a structural diagram of another display device according to some embodiments of the present disclosure;

[0029] Figure 5 is a structural diagram of a display panel according to some embodiments of the present disclosure;

[0030] Figure 6 is a structural diagram of a definition layer according to some embodiments of the present disclosure;

[0031] Figure 7 is a structural diagram of a definition layer and a light-emitting pattern according to some embodiments of the present disclosure;

[0032] Figure 8 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0033] Fig. 9 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0034] Fig.10 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0035] Fig.11 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0036] Fig.12 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0037] Fig.13is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0038] Fig.14 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0039] Fig.15 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0040] Fig.16 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0041] Fig.17 is a structural diagram of another definition layer and a light emitting pattern according to some embodiments of the present disclosure;

[0042] Fig.18 is a structural diagram of a defining layer, a first light-emitting layer, a second light-emitting layer and a third light-emitting layer according to some embodiments of the present disclosure;

[0043] Fig.19 is a structural diagram of another defining layer, a first light-emitting layer, a second light-emitting layer and a third light-emitting layer according to some embodiments of the present disclosure;

[0044] Fig. 20 Based on Fig.19 A structural diagram of the defining layer and the first light-emitting layer;

[0045] Fig.21 Based on Fig.19 A structural diagram of the defining layer and the second light-emitting layer;

[0046] Fig. 22 Based on Fig.19 The structural diagram of the defining layer and the third light-emitting layer;

[0047] Fig.23 is a structural diagram of another defining layer, a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer according to some embodiments of the present disclosure;

[0048] Fig.24 Based on Fig.23 A structural diagram of the defining layer and the first light-emitting layer;

[0049] Fig.25 Based on Fig.23 A structural diagram of the defining layer and the second light-emitting layer;

[0050] Fig.26 Based on Fig.23 Structural diagram of the defining layer and the third light-emitting layer. DETAILED DESCRIPTION

[0051] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0052] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open, inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0053] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0054] When describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates, for example, that two or more components are in direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0055] “At least one of A, B, and C” has the same meaning as “at least one of A, B, or C” and both include the following combinations of A, B, and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0056] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0057] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0058] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layers and the area of ​​the regions are exaggerated for clarity. Therefore, variations in the shapes relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0059] like Figure 1 As shown, some embodiments of the present disclosure provide a display device 1000, which can be any display device that displays images, whether in motion (e.g., video) or fixed (e.g., still images), and whether text or images. More specifically, it is expected that the display device of the embodiments can be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, video cameras, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controls and / or displays, displays of camera views (e.g., displays of rear-view cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging, and aesthetic structures (e.g., displays of images of a piece of jewelry), etc.

[0060] like Figure 2 As shown, the display device 1000 includes a display panel 100 and a cover plate 200 .

[0061] In some examples, the display panel 100 may be an organic light-emitting diode display panel (OLED). The cover plate 200 is located on the light-emitting side of the display panel 100, and the cover plate 200 protects the display panel 100 from damage such as external bumps. The material of the cover plate 200 may be glass.

[0062] In some examples, such as Figure 3 As shown, the display device 1000 may further include an optical element 300, such as an under-screen camera, an under-screen fingerprint recognition sensor, an infrared transmitting device, an infrared receiving device, etc., so that the display device 1000 can realize a variety of different functions such as taking pictures, recording videos, fingerprint recognition, and facial recognition (Face ID).

[0063] like Figure 4 As shown, the display device 1000 may further include: an integrated circuit 400. The integrated circuit 400 is connected to the display panel 100 and is used to transmit a display driving signal and the like to the display panel 100.

[0064] For example, Figure 3-4 As shown, the display panel 100 has a display area A and a peripheral area D. The display area A is the area of ​​the display panel 100 used to display images, and the peripheral area D is used to place structures such as drive circuits that provide electrical signals (such as scan signals, data signals, etc.) to sub-pixels.

[0065] The peripheral area D is arranged around the display area A.

[0066] The display area A may be in the shape of a rectangle or a rounded rectangle, etc. A rounded rectangle means that all four corners of the rectangle are rounded.

[0067] The display area A includes a main display area A1 and a subsidiary display area A2 , and the subsidiary display area A2 is located at least on one side of the main display area A.

[0068] For example, the shape of the auxiliary display area A2 can be circular, elliptical, rectangular, etc.

[0069] For example, the auxiliary display area A2 is located on one side or multiple sides of the main display area A1.

[0070] For example, when the display area A is in the shape of a rectangle, the sub-display area A2 can be located at any position in the middle of the rectangle, or the sub-display area A2 can be located near any corner of the rectangle, or the sub-display area A2 can be located near any side of the rectangle.

[0071] The display area A may include at least one auxiliary display area A2. Figure 3 As shown, the number of the auxiliary display area A2 can be one. Figure 4As shown, the number of auxiliary display areas A2 may also be two or more.

[0072] Exemplarily, in the display panel 100 , the portions located in the main display area A1 and the auxiliary display area A2 can both be used for image display.

[0073] Exemplarily, the light transmittance of the auxiliary display area A2 is greater than the light transmittance of the main display area A1.

[0074] Exemplarily, the optical element 300 is located on the non-light-exiting side of the display panel 100 , and is located in the auxiliary display area A2 of the display panel 100 .

[0075] The light-emitting side of the display panel 100 refers to a side of the display panel 100 that can display images. The non-light-emitting side of the display panel 100 refers to a side opposite to the light-emitting side of the display panel 100 .

[0076] Exemplarily, when the optical element 300 is working, it is necessary for light to be able to pass through the secondary display area A2, for example, the light emitted by the optical element 300 can be emitted to the outside through the secondary display area A2, and / or the external light can be irradiated onto the optical element 300 through the secondary display area A2, so that the corresponding function of the optical element 300 can be activated. Since the light transmittance of the secondary display area A2 is greater than that of the main display area A1, the light is less lost after passing through the secondary display area A2, thereby avoiding affecting the function of the optical element 300.

[0077] Exemplarily, taking the optical element 300 as a camera, when the camera is working, external light can pass through the portion of the display panel 100 located in the auxiliary display area A2. In this way, the camera can collect the light to achieve the function of taking pictures or recording videos. For example, when the camera is working (for example, a user takes a selfie), the auxiliary display area A2 can present a black screen, and the main display area A1 presents the user's selfie picture, which clearly shows the location of the camera. Alternatively, the auxiliary display area A2 and the main display area A1 present the user's selfie picture as a whole, without showing the location of the camera.

[0078] Exemplarily, when the camera is not working, the portions of the display panel 100 located in the auxiliary display area A2 and the main display area A1 can both be displayed, so that the display panel 100 and the display device 1000 as a whole can display the picture.

[0079] Exemplarily, taking the optical element 300 as an infrared receiving device and an infrared emitting device, during the process of facial recognition performed by the display device 1000, the infrared emitting device emits light, such as infrared light, to the light-emitting side of the display panel 100 through the portion of the display panel 100 located in the sub-display area A2. If there is an object with a relatively high temperature (for example, a human face) on the light-emitting side of the display panel 100, the object can reflect at least a portion of the infrared light back to the display panel 100, and the light is incident on the infrared receiving device through the portion of the display panel 100 located in the sub-display area A2. The infrared receiving device performs facial recognition based on the received infrared light.

[0080] In some examples, such as Figure 5 As shown, the display panel 100 includes: a pixel circuit layer 10 .

[0081] Exemplarily, the pixel circuit layer 10 includes a substrate 11 and a plurality of pixel circuits 12 disposed on one side of the substrate 11 .

[0082] Exemplarily, the substrate 11 may be a flexible substrate or a rigid substrate.

[0083] For example, when the substrate 11 is a flexible substrate, the material of the substrate 11 may be a material having high elasticity such as dimethylsiloxane, PI (Polyimide), or PET (Polyethyleneterephthalate).

[0084] For another example, when the substrate 11 is a rigid substrate, the material of the substrate 11 may be glass or the like.

[0085] In some examples, the pixel circuit 12 includes at least one transistor and at least one storage capacitor. The structure of the pixel circuit 12 includes multiple structures, which can be selected and set according to actual needs. For example, the structure of the pixel circuit 12 may include a structure such as "6T1C", "7T1C", "6T2C" or "7T2C". Here, "T" represents a transistor, and the number in front of "T" represents the number of transistors, and "C" represents a storage capacitor, and the number in front of "C" represents the number of storage capacitors. Figure 5 In the figure, TFT is a transistor in the pixel circuit 12.

[0086] For example, Figure 5 As shown, the display panel 100 further includes: an anode layer 20 , a defining layer 30 , a light emitting layer 40 and a cathode layer 50 which are sequentially stacked on one side of the pixel circuit layer 10 .

[0087] Illustratively, the anode layer 20 includes a plurality of anodes 21 disposed at intervals.

[0088] Exemplarily, the defining layer 30 has a plurality of first openings 31 located in the main display area A1 and the auxiliary display area A2. The plurality of anodes 21 are disposed corresponding to the plurality of first openings 31, and at least a portion of the surface of an anode 21 is exposed through the first opening 31 of the defining layer 30.

[0089] The light emitting layer 40 includes a plurality of light emitting patterns 41 . The plurality of light emitting patterns 41 are arranged corresponding to the plurality of anodes 21 one by one. The light emitting patterns 41 are in contact with and connected to the surface of the anode 21 exposed through the first opening 31 of the defining layer 30 .

[0090] The anode 21 , the light-emitting pattern 41 and the cathode layer 50 correspondingly arranged above constitute a light-emitting device 60 .

[0091] The pixel circuit 12 is connected to at least one light emitting device 60. For example, one pixel circuit 12 is connected to one light emitting device 60. For another example, one pixel circuit 12 is connected to a plurality of light emitting devices 60. Specifically, the pixel circuit 12 is connected to the anode 21 of the light emitting device 60, and is used to transmit an anode voltage to the anode 21. Under the voltage difference between the anode voltage of the anode 21 and the common voltage of the cathode layer 50, the light emitting pattern 41 of the light emitting device 60 emits light.

[0092] The following description will be made by taking the connection between a pixel circuit 12 and a light emitting device 60 as an example.

[0093] The light emitting device 60 and the pixel circuit 12 connected thereto constitute a sub-pixel. In the same sub-pixel of the secondary display area A2, the orthographic projection of the pixel circuit 12 on the substrate 11 at least partially overlaps with the orthographic projection of the light emitting device 60 or the light emitting pattern 41 on the substrate 11, thereby at least a portion of the pixel circuit 12 of the secondary display area A2 can be hidden under the light emitting device 60, thereby reducing or avoiding the area of ​​the secondary display area A2 occupied by the pixel circuit 12 and the light emitting device 60 separately, thereby making the area of ​​the secondary display area A2 occupied by the entire sub-pixel smaller, which is beneficial to improving the light transmittance of the secondary display area A2 of the display panel, thereby improving the performance of the optical element 300.

[0094] In some examples, the display panel further includes: an encapsulation layer and a functional layer stacked on a side of the plurality of sub-pixels away from the substrate.

[0095] For example, the encapsulation layer can encapsulate and protect the sub-pixels to prevent external water and oxygen from entering the sub-pixels and thus prevent water and oxygen from affecting the life of the light-emitting device and the display panel.

[0096] For example, the functional layer may be a color filter layer, and the display panel may be a display panel using a COE (Color Filter on Encapsulation) structure. The color filter layer may be used to reduce the reflection of the display panel to external ambient light.

[0097] The above-mentioned functional stack may also include one or more of a touch function layer, an anti-reflection layer, a hardening layer and an anti-fingerprint layer, so that the display panel can achieve corresponding functions. The embodiments of the present disclosure do not specifically limit the types and quantities of the above-mentioned functional layers.

[0098] The display panel 100 including the COE structure has the advantages of high contrast, low power consumption, and wide color gamut, and can reduce the thickness of the display panel 100 , which is conducive to realizing a lightweight and thin design of the display panel 100 .

[0099] In a possible implementation, the sub-pixel arrangement of the main display area and the auxiliary display area of ​​the display panel is the same. In order to improve the light transmittance of the portion of the display panel located in the auxiliary display area, the number of sub-pixels located in the auxiliary display area is reduced, and the sub-pixel density of the auxiliary display area is reduced. However, simply deleting sub-pixels makes the sub-pixel arrangement uniformity of the portion of the display panel located in the auxiliary display area poor, and the reduction of sub-pixel density makes the granularity of the picture displayed in the auxiliary display area more obvious, making the uniformity of the pictures displayed in the main display area and the auxiliary display area poor, affecting the display effect of the display panel.

[0100] Based on this, an embodiment of the present disclosure provides a display panel 100, such as Figure 5 As shown, it includes the above-mentioned pixel circuit layer 10, and an anode layer 20, a defining layer 30, a light-emitting layer 40, and a cathode layer 50 which are sequentially stacked on one side of the pixel circuit layer 10.

[0101] For example, Figure 6 As shown, the above-mentioned defining layer 30 further includes: a plurality of light-transmitting portions 32 located in the auxiliary display area A2.

[0102] The plurality of light-transmitting portions 32 are arranged at intervals, and the light-transmitting portions 32 are arranged at intervals from the adjacent first openings 31. The light-transmitting portions 32 can transmit light, for example, visible light or infrared light, so that external light can be incident on the optical element 300 through the light-transmitting portions 32 in the auxiliary display area A2, or light emitted by the optical element 300 can be emitted to the light-emitting side of the display panel 100 through the light-transmitting portions 32 in the auxiliary display area A2.

[0103] There are many ways to set the light-transmitting portion 32, which can be selected and set according to actual needs. For example, the material of the defining layer 30 is a light-transmitting material, and in the thickness direction of the substrate 11, the part of the defining layer 30 that is not provided with a structure with a light-shielding effect (for example, the structure with a light-shielding effect can be a pixel circuit, etc.) on the surface of the side away from the substrate and under the surface of the side close to the substrate is all the light-transmitting portion 32, thereby making the size of the light-transmitting portion 32 relatively large, ensuring that the light transmittance of the secondary display area A2 is relatively large. For another example, the defining layer 30 includes a plurality of second openings arranged in the secondary display area A2, and the second openings constitute the above-mentioned light-transmitting portion 32, and light can be emitted through the light-transmitting portion 32.

[0104] In some examples, such as Figure 7 As shown, the light emitting layer 40 includes a plurality of light emitting patterns 41 , at least one of which includes a first sub-portion 411 and a second sub-portion 412 connected to each other. The first sub-portion 411 is located in the first opening 31 , and the second sub-portion 412 is located on the defining layer 30 .

[0105] For example, one or three of the plurality of light emitting patterns 41 include a first sub-portion 411 and a second sub-portion 412 connected to each other. For another example, each of the plurality of light emitting patterns 41 includes a first sub-portion 411 and a second sub-portion 412 connected to each other.

[0106] Exemplarily, the second sub-portion 412 overlaps the defining layer 30. A certain number of the light-emitting patterns 41 among the plurality of light-emitting patterns 41 are located in the main display area A1, and the second sub-portion 412 of the light-emitting pattern 41 overlaps the portion located between two adjacent first openings 31 in the defining layer 30. The remaining number of light-emitting patterns 41 are located in the secondary display area A2, and the second sub-portion 412 of the light-emitting pattern 41 may overlap the portion located between two adjacent first openings 31 in the defining layer 30, or may be located on an adjacent light-transmitting portion 32. Since the thickness of the light-emitting pattern 41 is relatively small, external light or light emitted by an optical element may pass through the second sub-portion 412 located on the light-transmitting portion 32, and light loss is relatively small or almost non-existent.

[0107] Exemplarily, the first sub-portion 411 is an effective light-emitting portion of the light-emitting pattern 41. The first sub-portion 411 is connected to the anode. The first sub-portion 411 can emit light under the voltage difference provided by the anode and the cathode. The second sub-portion 412 is not connected to the anode and does not participate in light emission.

[0108] In some examples, such as Figure 7As shown, a plurality of light emitting patterns 41 located in the main display area A1 and used for emitting light of different colors constitute a first light emitting pattern group 41A, and a plurality of light emitting patterns 41 located in the auxiliary display area A2 and used for emitting light of different colors constitute a second light emitting pattern group 41B.

[0109] Exemplarily, the types of light colors that can be emitted by the multiple light-emitting patterns 41 in the first light-emitting pattern group 41A are the same as the types of light colors that can be emitted by the multiple light-emitting patterns 41 in the second light-emitting pattern group 41B. For example, the multiple light-emitting patterns 41 in the first light-emitting pattern group 41A include light-emitting patterns that can emit red light, blue light, and green light, and the multiple light-emitting patterns 41 in the second light-emitting pattern group 41B also include light-emitting patterns that can emit red light, blue light, and green light. As a result, the image that can be synthesized by the light emitted by the multiple light-emitting patterns 41 in the first light-emitting pattern group 41A is less different from the same image that can be synthesized by the light emitted by the multiple light-emitting patterns 41 in the second light-emitting pattern group 41B, so that the difference between the image displayed in the main display area A1 and the image displayed in the auxiliary display area A2 is smaller, thereby improving the consistency of the image displayed by the display panel.

[0110] In some examples, such as Figure 7 As shown, the arrangement density of the plurality of first light emitting pattern groups 41A in the main display area A1 is greater than the arrangement density of the plurality of second light emitting pattern groups 41B in the auxiliary display area A2.

[0111] For example, multiple first light-emitting pattern groups 41A are arranged in multiple rows and columns, and multiple second light-emitting pattern groups 41B are arranged in multiple rows and columns. The spacing between two adjacent rows of first light-emitting pattern groups 41A is smaller than the spacing between two adjacent rows of second light-emitting pattern groups 41B, and / or the spacing between two adjacent columns of first light-emitting pattern groups 41A is smaller than the spacing between two adjacent columns of second light-emitting pattern groups 41B.

[0112] Thus, the arrangement density of the second light-emitting pattern group 41B in the secondary display area A2 can be made relatively small, so that the gap between adjacent second light-emitting pattern groups 41B in the secondary display area A2 is larger, which is beneficial to improving the transmittance of the secondary display area A2 and further improving the performance of the optical element 300.

[0113] In some examples, such as Figure 7 As shown, the number of light emitting patterns 41 included in the first light emitting pattern group 41A is different from the number of light emitting patterns 41 included in the second light emitting pattern group 41B.

[0114] For example, the first light emitting pattern group 41A includes four light emitting patterns 41 , and the second light emitting pattern group 41B includes six light emitting patterns 41 .

[0115] Thus, the arrangement of the multiple light-emitting patterns 41 in the main display area A1 can be made different from the arrangement of the multiple light-emitting patterns 41 in the sub-display area A2. The multiple light-emitting patterns 41 with different arrangements in the sub-display area A2 can be used to adjust the difference between the display image in the sub-display area A2 and the display image in the main display area A1 due to the reduction in sub-pixel density, reduce the display difference between the main display area A1 and the sub-display area A2, alleviate the granularity phenomenon of the display picture in the sub-display area A2, and thereby improve the uniformity of the image displayed by the display panel 100.

[0116] In some examples, such as Figure 7 As shown, the sum of the areas of the orthographic projections of the multiple first sub-divisions 411 in the first light-emitting pattern group 41A on the plane where the display panel 100 is located is greater than the sum of the areas of the orthographic projections of the multiple first sub-divisions 411 in the second light-emitting pattern group 41B on the plane where the display panel 100 is located.

[0117] For example, the sum of the orthographic projection areas of the four first subdivisions 411 in the first light emitting pattern group 41A on the plane where the display panel 100 is located is greater than the sum of the orthographic projection areas of the six first subdivisions 411 in the second light emitting pattern group 41B on the plane where the display panel 100 is located.

[0118] From the above, it can be seen that the first sub-portion 411 is the effective light-emitting portion of the light-emitting pattern 41, and the first opening 31 corresponding to the first sub-portion 411 is spaced apart from the light-transmitting portion 32. Therefore, the above arrangement can make the area of ​​the effective light-emitting portion of the second light-emitting pattern group 41B smaller, so that the area of ​​the region through which light can pass in the sub-display area A2 is larger, and the area of ​​the light-transmitting portion 32 (the area here refers to the area of ​​the positive projection of the light-transmitting portion 32 on the substrate) can be set larger, so that the light transmittance of the sub-display area A2 is higher, which is beneficial to improving the performance of the optical element 300.

[0119] In the above-mentioned embodiment of the present disclosure, the defining layer 30 of the display panel 100 is arranged to include a plurality of first openings 31 and a plurality of light-transmitting portions 32 located in the sub-display area A2, and the light-emitting layer 40 is arranged to include a plurality of light-emitting patterns 41, the first sub-portion 411 of the light-emitting pattern 41 is located in the first opening 31, and the second sub-portion 412 is located on the defining layer 30, and the arrangement density of the plurality of first light-emitting pattern groups 41A in the main display area A1 is greater than the arrangement density of the plurality of second light-emitting pattern groups 41B in the sub-display area A2, thereby making the light transmittance of the sub-display area A2 greater. It is also set that the sum of the areas of the orthographic projections of the multiple first sub-portions 411 in the first light-emitting pattern group 41A on the plane where the display panel 100 is located is greater than the sum of the areas of the orthographic projections of the multiple first sub-portions 411 in the second light-emitting pattern group 41B on the plane where the display panel 100 is located, so that the area of ​​the effective light-emitting portion of the second light-emitting pattern group 41B can be smaller, the area of ​​the light-transmissive region in the sub-display area A2 can be larger, the area of ​​the light-transmissive portion 32 can be set larger, and the light transmittance of the sub-display area A2 can be further increased, so that the loss of light after passing through the sub-display area A2 is smaller. Therefore, when the display panel 100 is applied to a display device 1000 including an optical element 300, the optical element 300 can collect more light or the optical element 300 can emit more light through the sub-display area A2, thereby improving the performance of the optical element 300. Furthermore, the number of light-emitting patterns 41 included in the first light-emitting pattern group 41A is set to be different from the number of light-emitting patterns 41 included in the second light-emitting pattern group 41B, so that the arrangement of the light-emitting patterns 41 in the main display area A1 is differentiated from the arrangement of the light-emitting patterns 41 in the sub-display area A2. The multiple light-emitting patterns 41 with different arrangements in the sub-display area A2 can be used to adjust the difference between the display image in the sub-display area A2 and the display image in the main display area A1 due to the reduction in sub-pixel density, reduce the display difference between the main display area A1 and the sub-display area A2, alleviate the granularity phenomenon of the display image in the sub-display area A2, and improve the uniformity of the display image of the display panel 100.

[0120] In some embodiments, Figure 7 and Figure 8 As shown, the sum of the areas of the orthographic projections of the multiple first sub-divisions 411 in the first light-emitting pattern group 41A on the plane where the display panel 100 is located is 2 to 4 times the sum of the areas of the orthographic projections of the multiple first sub-divisions 411 in the second light-emitting pattern group 41B on the plane where the display panel 100 is located.

[0121] For example, the sum of the areas of the orthographic projections of the plurality of first sub-divisions 411 in the first light-emitting pattern group 41A on the plane where the display panel 100 is located is twice the sum of the areas of the orthographic projections of the plurality of first sub-divisions 411 in the second light-emitting pattern group 41B on the plane where the display panel 100 is located (refer to Fig. 9), 2.5 times, 3 times or 4 times (reference Figure 8 ).

[0122] Thus, the area of ​​the first sub-portion 411 in the second light-emitting pattern group 41B can be made smaller. Since the first sub-portion 411 is located in the first opening 31, the area of ​​the first opening 31 in the defining layer 30 in the auxiliary display area A2 is made smaller, so that the area of ​​the light-transmitting portion 32 can be set relatively large, thereby increasing the sum of the areas of the plurality of light-transmitting portions 32, increasing the light transmittance of the auxiliary display area A2, and improving the performance of the optical element 300. In addition, the smaller area of ​​the first sub-portion 411 in the second light-emitting pattern group 41B has less influence on the light-emitting life of the light-emitting device, so that the light-emitting life of the light-emitting device and the display life of the display panel 100 can be made longer.

[0123] In some embodiments, Figure 7 As shown, the plurality of light emitting patterns 41 include: a plurality of first patterns 421 , a plurality of second patterns 422 , and a plurality of third patterns 423 for emitting light of different colors.

[0124] In some examples, in the above-mentioned light emitting pattern 41, the first pattern 421 is used to emit red light, the second pattern 422 is used to emit green light, and the third pattern 423 is used to emit blue light. Alternatively, the first pattern 421 is used to emit red light, the second pattern 422 is used to emit blue light, and the third pattern 423 is used to emit green light.

[0125] like Figure 7 As shown, the first light emitting pattern group 41A includes a first pattern 421, two second patterns 422 and a third pattern 423. In the first light emitting pattern group 41A, a line L1 between the centers of the orthographic projections of the two second patterns 422 on the plane where the display panel 100 is located intersects with a line L2 between the centers of the orthographic projections of the first pattern 421 and the third pattern 423 on the plane where the display panel 100 is located.

[0126] For example, in the first light-emitting pattern group 41A, a figure formed by sequentially connecting the centers of the orthographic projections of the four light-emitting patterns 41 on the plane where the display panel 100 is located may be a quadrilateral.

[0127] The second light-emitting pattern group 41B includes two adjacent first subgroups 410B. The first subgroup 410B includes a first pattern 421, a second pattern 422, and a third pattern 423. In the first subgroup 410B, the line connecting the centers of the orthographic projections of the first pattern 421, the second pattern 422, and the third pattern 423 on the plane where the display panel 100 is located is a triangle.

[0128] For example, in the second light emitting pattern group 41B, the lines connecting the centers of the orthographic projections of the three light emitting patterns 41 in the two first subgroups 410B on the plane where the display panel 100 is located are all triangles, and the two triangles can be symmetrically distributed about the center line between the two first subgroups 410B.

[0129] In the above-mentioned setting, the number of light-emitting patterns 41 in the first light-emitting pattern group 41A is different from the number of light-emitting patterns 41 in the second light-emitting pattern group 41B, and the arrangement of the light-emitting patterns 41 in the first light-emitting pattern group 41A and the second light-emitting pattern group 41B is different, thereby achieving a differentiated design of the arrangement of the light-emitting patterns 41 in the first light-emitting pattern group 41A and the light-emitting patterns 41 in the second light-emitting pattern group 41B, thereby avoiding or alleviating the problem of the granularity of the screen display caused by simple sub-pixel deletion in a possible implementation method. In addition, the number of light-emitting patterns 41 in the first light-emitting pattern group 41A is smaller than the number of light-emitting patterns 41 in the second light-emitting pattern group 41B, so that the number of sub-pixels that can be constituted by the light-emitting patterns 41 in the second light-emitting pattern group 41B is relatively large, thereby increasing the sub-pixel density of the secondary display area A2 to a certain extent, further avoiding or alleviating the problem of the granularity of the screen display caused by simple sub-pixel deletion in a possible implementation method, and improving the uniformity of the screen displayed in the display area A. In some embodiments, such as Figure 7 As shown, a plurality of second light emitting pattern groups 41B are arranged in a plurality of rows, for example, arranged in a plurality of rows along the first direction Y. In two adjacent rows of second light emitting pattern groups 41B, two second light emitting pattern groups 41B located in different rows and adjacent to each other are staggered, and two second light emitting pattern groups 41B located in the same row and adjacent to each other are separated by the light-transmitting portion 32 .

[0130] For example, the direction of the row may be the second direction X. In addition, Figure 7 The Z in the figure is the third direction, which is perpendicular to both the first direction Y and the second direction X. The third direction Z is the direction in which the thickness of the display panel is located.

[0131] Exemplarily, the plurality of second light emitting pattern groups 41B are arranged in a plurality of columns, for example, in a plurality of columns along the second direction X. In two adjacent columns of second light emitting pattern groups 41B, two second light emitting pattern groups 41B located in different columns and adjacent to each other are staggered, and two second light emitting pattern groups 41B located in the same column and adjacent to each other are separated by the light-transmitting portion 32 .

[0132] For example, Figure 7 As shown, taking the auxiliary display area A2 as a rectangle as an example, one second light emitting pattern group 41B is adjacent to at least two light-transmitting portions 32 .

[0133] The above arrangement can make the second light-emitting pattern group 41B and the light-transmitting portion 32 in the auxiliary display area A2 arranged alternately, so that the arrangement of the second light-emitting pattern group 41B in the auxiliary display area A2 is relatively uniform, and the arrangement of the light-transmitting portion 32 is also relatively uniform, so that the sub-pixels of the auxiliary display area A2 are arranged relatively uniformly, so that the light emitted by the auxiliary display area A2 is relatively uniform, and the image displayed in the auxiliary display area A2 is relatively accurate, so that the display effect of the auxiliary display area A2 can be improved. And the arrangement of the light-transmitting portion 32 is relatively uniform, which can make the light received by the optical element 300 (or the light emitted by the optical element 300 through the auxiliary display area A2) relatively uniform, which is conducive to improving the performance of the optical element 300, such as improving the quality of camera photography, improving the accuracy of face recognition, etc.

[0134] In some embodiments, Figures 10 to 16 As shown, one of the second pattern 422 and the third pattern 423 in the second light-emitting pattern group 41B is a target pattern, and the other is a non-target pattern.

[0135] The plurality of light emitting patterns 41 in the second light emitting pattern group 41B are arranged in two rows, the two target patterns are arranged in the first row, and the two non-target patterns and the two first patterns 421 are arranged alternately along the row direction in the second row.

[0136] In the above setting, setting the two target patterns in a row can save space on the plane where the display panel 100 is located, which is beneficial to increasing the setting area of ​​the light-transmitting portion 32, thereby improving the transmittance of the sub-display area A2, and increasing the amount of light received by the optical element 300 (or the amount of light emitted by the optical element 300 through the sub-display area A2), thereby improving the performance of the optical element 300.

[0137] In some examples, such as Figure 13-14 As shown, the center of the orthographic projection of the adjacent target pattern on the plane where the display panel is located is arranged opposite or approximately opposite to the center of the orthographic projection of the non-target pattern on the plane where the display panel is located in the first direction Y.

[0138] Adjacent here means that the target pattern and the non-target pattern are adjacent.

[0139] For example, Fig.13 As shown, the target pattern is the third pattern 423. The line M1 between the center of the orthographic projection of the adjacent third pattern 423 on the plane where the display panel is located and the center of the orthographic projection of the second pattern 422 on the plane where the display panel is located extends along the first direction Y, or the line has a small angle with the first direction Y.

[0140] For example, Fig.14As shown, the target pattern is the second pattern 422. A line M2 between the center of the orthographic projection of the adjacent second pattern 422 on the plane where the display panel is located and the center of the orthographic projection of the third pattern 423 on the plane where the display panel is located extends along the first direction Y, or the line has a small angle with the first direction Y.

[0141] In other examples, such as Figure 10 to Figure 12 and Figure 15-16 As shown, the center N1 of the orthographic projection of the adjacent first pattern 421 on the plane where the display panel is located, the center N2 of the orthographic projection of the non-target pattern on the plane where the display panel is located, and the center N3 of the orthographic projection of the target pattern on the plane where the display panel is located are staggered in the first direction Y. The first direction Y is perpendicular to the row direction and parallel to the plane where the display panel 100 is located.

[0142] The center of the orthographic projection of the first pattern 421 on the plane where the display panel is located refers to the geometric center of the shape of the orthographic projection of the first pattern 421 on the plane where the display panel is located. For example, when the shape of the orthographic projection is a circle, the center is the center of the circle. For example, when the shape of the orthographic projection is a rectangle, the center is the intersection of the diagonals of the rectangle.

[0143] In addition, the above staggered arrangement is beneficial to the light mixing uniformity between the light emitting patterns emitting light of different colors in the second light emitting pattern group 41B, thereby helping to improve the graphic display quality of the auxiliary display area A2.

[0144] In some examples, such as Fig.11 and Fig.16 As shown, in the second pattern 422 and the third pattern 423 in the second light-emitting pattern group 41B, the second pattern 422 is a target pattern, and the third pattern 423 is a non-target pattern. Then, the two second patterns 422 in the second light-emitting pattern group 41B are arranged as a first row, and the two third patterns 423 and the two first patterns 421 are alternately arranged along the row direction as a second row. Fig.11 , the arrangement of the second row is: a first pattern 421, a third pattern 423, another first pattern 421, and another third pattern 423. The center N1 of the orthographic projection of the adjacent first pattern 421 on the plane where the display panel is located, the center N2 of the orthographic projection of the third pattern 423 on the plane where the display panel is located, and the center N3 of the orthographic projection of the second pattern 422 on the plane where the display panel is located are staggered in the first direction Y.

[0145] In other examples, such as Fig.10 and Fig.15As shown, in the second pattern 422 and the third pattern 423 in the second light-emitting pattern group 41B, the third pattern 423 is a target pattern, and the second pattern 422 is a non-target pattern. Then, the two third patterns 423 in the second light-emitting pattern group 41B are arranged as a first row, and the two second patterns 422 and the two first patterns 421 are alternately arranged along the row direction as a second row. Fig.10 , the second row is arranged as follows: a first pattern 421, a second pattern 422, another first pattern 421, and another second pattern 422. The center N1 of the orthographic projection of the adjacent first pattern 421 on the plane where the display panel is located, the center N2 of the orthographic projection of the second pattern 422 on the plane where the display panel is located, and the center N3 of the orthographic projection of the third pattern 423 on the plane where the display panel is located are staggered in the first direction Y.

[0146] For example, in this example, the third pattern 423 is used to emit blue light, the second pattern 422 is used to emit green light, and the first pattern 421 is used to emit red light.

[0147] The human eye has different sensitivities to different colored lights. For example, compared with blue light, the human eye can more easily see or capture green light and its boundaries. Therefore, in the display panel 100, the boundaries of sub-pixels emitting green light are more easily seen or captured by the human eye.

[0148] In the above example of the present disclosure, the light-transmitting portion 32 is arranged between the second light-emitting pattern groups 41B adjacent to each other along the first direction Y or along the second direction X, and the second patterns 422 emitting green light and the first patterns 421 emitting red light are alternately arranged in the row direction X to form a second row, so that the boundary of the sub-pixel emitted green light formed by the two second patterns 422 has a smaller size (the smaller size boundary here can be referred to as Fig.10 The borders of the two second patterns 422 except the borders F1, F2 and F3 are adjacent to the light-transmitting portion 32, and the borders of the larger size (the borders of the larger size here can refer to Fig.10 The boundaries F1, F2 and F3 of the two second patterns 422 are adjacent to the red light emitted by the first pattern 421 and the blue light emitted by the third pattern 423, and the green light boundary is integrated with the red light boundary and the blue light boundary, thereby reducing the proportion of the green light boundary emitted by the sub-pixel formed by the second pattern 422 that can be captured by the human eye, and the possibility of being captured by the human eye, and reducing the difference between the boundary of the light emitted by the sub-pixel formed by the second pattern 422 and the boundary of the light emitted by the sub-pixel formed by the third pattern 423 that can be captured by the human eye, thereby improving the quality of the image displayed in the secondary display area A2.

[0149] In some embodiments, Fig.10 and Fig.11As shown, in the second light emitting pattern group 41B, the interval H between the first sub-portions 411 of the two target patterns ranges from 6 μm to 13 μm.

[0150] For example, in the second light emitting pattern group 41B, the interval H between the first sub-portions 411 of two target patterns may be 6 μm, 8 μm, 10 μm, 11 μm, 12 μm or 13 μm.

[0151] By adopting the above-mentioned setting, the distance between the two target patterns arranged in the first row can be smaller, so that the area occupied by the second light-emitting pattern group 41B on the plane where the display panel is located is relatively small, and the area of ​​the light-transmitting portion 32 can be set relatively large, thereby improving the transmittance of the secondary display area A2.

[0152] Exemplarily, the light-emitting layer 40 may be formed by using a mask plate and an evaporation process. The mask plate may be a fine metal mask plate (Fine Metal Mask, FMM for short). The mask plate has a plurality of openings, and the material of the light-emitting layer 40 is deposited into the first opening 31 of the defining layer 30 and on the defining layer 30 through the openings of the mask plate by an evaporation process, thereby forming a light-emitting pattern 41.

[0153] In some embodiments, Figure 12 to Figure 14 As shown, the second sub-portions 412 of the two target patterns are connected to each other.

[0154] Therefore, in the process of preparing the light-emitting pattern 41 using a mask plate, the same opening of the mask plate can be used to form two target patterns. As a result, the number of openings of the mask plate can be reduced, the preparation cost of the mask plate can be reduced, and the corresponding opening area of ​​the mask plate can be larger, thereby reducing the difficulty of preparing the mask plate, which is beneficial to reducing the preparation cost of the light-emitting layer 40 and the display panel 100.

[0155] In some embodiments, Figures 10 to 16 As shown, a size S1 of the first sub-portion 411 of the target pattern along the row direction is greater than or equal to a size S2 of the first sub-portion 411 of the target pattern along the first direction Y.

[0156] For example, Fig.12 As shown, the target pattern is the second pattern 422, the dimension S1 of the first sub-portion 411 of the second pattern 422 along the second direction X is greater than the dimension S2 along the first direction Y, and the orthographic projection of the second pattern 422 on the plane where the display panel is located is a rectangle.

[0157] For example, Fig.13As shown, the target pattern is the third pattern 423, the dimension S1 of the first sub-portion 411 of the third pattern 423 along the second direction X is equal to the dimension S2 thereof along the first direction Y, and the orthographic projection of the third pattern 423 on the plane where the display panel is located is a square.

[0158] As a result, the size of the first sub-portion 411 of the target pattern in the first direction Y is smaller, the area occupied by the second light-emitting pattern group 41B in the plane where the defining layer 30 is located is smaller, and the area of ​​the light-transmitting portion 32 can be set relatively large, thereby improving the transmittance of the secondary display area A2 and improving the performance of the optical element 300.

[0159] In some examples, such as Fig.10 and Fig.11 As shown, in the first subgroup 410B, in the first direction Y, the target pattern ( Fig.10 In the example, the target pattern is the third pattern 423, Fig.11 , the target pattern is the first sub-portion 411 of the second pattern 422) and the first sub-portion 411 of the first pattern 421 and the non-target pattern ( Fig.10 In the example, the non-target pattern is the second pattern 422, Fig.11 In the figure, the non-target pattern is directly opposite to the first sub-portion 411 of the third pattern 423).

[0160] For example, Fig.10 For example, the first sub-portion 411 of the target pattern (third pattern 423) has a larger size in the second direction X. The orthographic projection of the first sub-portion 411 of the target pattern (third pattern 423) to the second direction X partially overlaps with the orthographic projection of the first sub-portion 411 of the first pattern 421 to the second direction X, and partially overlaps with the orthographic projection of the first sub-portion 411 of the non-target pattern (second pattern 422) to the second direction X.

[0161] Thus, the area occupied by the second light emitting pattern group 41B on the plane where the defining layer 30 is located can be further reduced, so that the area of ​​the light-transmitting portion 32 can be set relatively large, thereby increasing the light transmittance of the secondary display area A2 and improving the performance of the optical element 300.

[0162] For example, Fig.10 For example, the size of the first sub-portion 411 of the target pattern (third pattern 423) in the second direction X is less than or equal to the size occupied by the first sub-portion 411 of the first pattern 421 and the first sub-portion 411 of the non-target pattern (second pattern 422) in the second direction X.

[0163] In some embodiments, Fig.17As shown, in the second light emitting pattern group 41B, the orthographic projection patterns of the two first subgroups 410B on the plane where the display panel 100 is located are centrally symmetric about the center point N4 of the orthographic projection pattern of the second light emitting pattern group 41B on the plane where the display panel 100 is located.

[0164] For example, the orthographic projection figure of the second light-emitting pattern group 41B on the plane where the display panel 100 is located is roughly a parallelogram, and the center point N4 of the parallelogram is the intersection point of its diagonals. After the orthographic projection figure of one of the two first subgroups 410B is rotated 180° along the above-mentioned center point N4, it can coincide with the orthographic projection figure of the other first subgroup 410B. Specifically, after the orthographic projection figure of the first pattern 421 in a first subset 410B is rotated 180° along the above-mentioned center point N4, it can coincide with the orthographic projection figure of the first pattern 421 of another first subset 410B; after the orthographic projection figure of the second pattern 422 in a first subset 410B is rotated 180° along the above-mentioned center point N4, it can coincide with the orthographic projection figure of the second pattern 422 of another first subset 410B; after the orthographic projection figure of the third pattern 423 in a first subset 410B is rotated 180° along the above-mentioned center point N4, it can coincide with the orthographic projection figure of the third pattern 423 of another first subset 410B.

[0165] The above-mentioned arrangement can make the arrangement of multiple light-emitting patterns 41 in the second light-emitting pattern group 41B relatively tight, and the gaps between adjacent light-emitting patterns 41 are relatively small, so that the area occupied by the second light-emitting pattern group 41B in the plane where the display panel is located can be compressed, so that the area of ​​the light-transmitting portion 32 in the defining layer 30 can be set relatively large, thereby improving the transmittance of the secondary display area A2 and improving the performance of the optical element 300.

[0166] In some embodiments, Figure 10 to Figure 17 As shown, in the second light emitting pattern group 41B, the shape of the orthographic projection of the first sub-portion 411 on the plane where the display panel 100 is located includes a rectangle (see Figure 10 to Figure 12 The first subsection 411 in the Fig.13 and Fig.14 The first subsection 411 in the Figure 15 to Figure 17 The first sub-portion 411 of the first pattern 421 in FIG. 4 is a first sub-portion 411 of the first pattern 421 in FIG. 4 ) or a curved circle (see Fig.15 and Fig.17 The curved circle includes a semicircular arc edge and a semi-ellipse arc edge connected to each other, and the major axis of the semi-ellipse is equal to the diameter of the semicircle.

[0167] It can be understood that since the first sub-portion 411 is located in the first opening 31 of the defining layer 30, the orthographic projection of the first sub-portion 411 on the plane where the display panel 100 is located coincides with the orthographic projection of the first opening 31 on the plane where the display panel 100 is located, and the orthographic projection of the first sub-portion 411 on the plane where the display panel 100 is located is the same in shape as the orthographic projection of the first opening 31 on the plane where the display panel 100 is located, and the areas are equal.

[0168] The above arrangement can make the sizes of the first sub-section 411 in the first direction Y and the second direction X equal or substantially equal, and can improve the light emitted by the first sub-section 411 in the second light-emitting pattern group 41B, especially the target pattern (refer to Fig.13 , the target pattern is the third pattern 423; reference Fig.16 The target pattern is the interference phenomenon of the light emitted from the first sub-portion 411 of the second pattern 422 in the first direction Y, and the color deviation phenomenon of the light emitted from the first sub-portion 411 under a large viewing angle is improved, which is beneficial to improving the display quality of the auxiliary display area A2.

[0169] In some examples, such as Fig.15 As shown, in the curved circle, the arc side W2 of the semi-ellipse is farther away from the center of the second light-emitting pattern group 41B than the arc side W1 of the semi-circle. For example, the major axis of the semi-ellipse extends along the second direction X.

[0170] The arc edge W2 of the semi-ellipse is farther away from the center of the second light-emitting pattern group 41B, so that the arc edge W2 of the semi-ellipse is closer to the light-transmitting portion adjacent to the first sub-portion 411. Since the size of the arc edge W2 of the semi-ellipse along the first direction Y is smaller than that of the semicircular arc edge W1, the above arrangement can make the size of the first sub-portion 411 in the first direction Y smaller, so that the size of the light-transmitting portion 32 in the first direction Y can be set relatively large, thereby improving the light transmittance of the auxiliary display area A2 and improving the performance of the optical element 300.

[0171] In order to verify the light emission conditions of the light emitted by the luminous pattern within the shapes of different first openings (the shape of the first opening refers to the shape of the positive projection of the first opening on the plane where the display panel 100 is located) in the defining layer located in the secondary display area, the inventors of the present disclosure conducted simulation calculations on the conditions of setting different first openings in the display panel, and obtained the following Table 1.

[0172] In Table 1, the display panel whose first opening is in the shape of a square D1 is represented by F1, the shape of the multiple first openings in the portion of the defining layer located in the secondary display area is a square, and the sum of the areas of the multiple first sub-divisions in the first light-emitting pattern group in the main display area is 4 times the sum of the areas of the multiple first sub-divisions in the second light-emitting pattern group in the secondary display area. The display panel whose first opening is in the shape of a rectangle G is represented by F2, the shape of the multiple first openings in the portion of the defining layer located in the secondary display area is a rectangle, and the sum of the areas of the multiple first sub-divisions in the first light-emitting pattern group in the main display area is 2 times the sum of the areas of the multiple first sub-divisions in the second light-emitting pattern group in the secondary display area, and the target pattern is a display panel with a light-emitting pattern emitting green light. The display panel whose first opening is in the shape of a rectangle B is represented by F3, the shape of the multiple first openings in the portion of the defining layer located in the secondary display area is a rectangle, and the sum of the areas of the multiple first sub-divisions in the first light-emitting pattern group in the main display area is 2 times the sum of the areas of the multiple first sub-divisions in the second light-emitting pattern group in the secondary display area, and the target pattern is a display panel with a light-emitting pattern emitting blue light. The display panel whose first opening is in the shape of a square D2 is represented by F4, and the shape of the multiple first openings in the portion of the defining layer located in the secondary display area is square, and the sum of the areas of the multiple first sub-divisions in the first light-emitting pattern group in the main display area is twice the sum of the areas of the multiple first sub-divisions in the second light-emitting pattern group in the secondary display area. The display panel whose first opening is in the shape of a circle D3 is represented by F5, and the shape of the multiple first openings in the portion of the defining layer located in the secondary display area is circular, and the sum of the areas of the multiple first sub-divisions in the first light-emitting pattern group in the main display area is twice the sum of the areas of the multiple first sub-divisions in the second light-emitting pattern group in the secondary display area. The transmittance refers to the transmittance of the portion of the display panel located in the secondary display area. There is a difference above a viewing angle of 45°, which means that there is a difference between the light emitted from the secondary display area of ​​the display panel with a viewing angle greater than or equal to 45° and the light emitted from the main display area with a viewing angle greater than or equal to 45°, and the difference is the difference in the brightness of the displayed image, etc.

[0173] Table 1

[0174]

[0175] As can be seen from Table 1, the secondary display area of ​​the display panel F1 has the largest light transmittance, which is 25.44%. Compared with the display panel F5, the secondary display areas of the display panels F2, F3, and F4 have higher light transmittance. It can be seen that the shape of the first opening is set to be a square or a quasi-square (the quasi-square here refers to a rectangle), which can make the area of ​​the plane of the display panel occupied by the multiple first sub-parts in the secondary display area smaller, so that the area of ​​the light-transmitting part can be set relatively large, thereby making the light transmittance of the secondary display area higher.

[0176] As can be seen from Table 1, the light emitted from the secondary display area of ​​the display panel F1 and the display panel F4 at a viewing angle greater than or equal to 45° is different from the light emitted from the main display area at a viewing angle greater than or equal to 45°. However, the light emitted from the secondary display area of ​​the display panel F2, the display panel F3, and the display panel F5 is different from the light emitted from the main display area at different viewing angles, and the difference is relatively large. It can be seen that the shape of the first opening is set to be a square (or the orthographic projection of the first sub-portion on the plane where the display panel is located is a square), which can reduce the difference between the light emitted from the main display area of ​​the display panel and the light emitted from the secondary display area within a small viewing angle range (the small viewing angle here can be a viewing angle range less than 45°, such as a 0° front view), thereby reducing the difference in the displayed images of the main display area and the secondary display area of ​​the display panel to a certain extent, and improving the color cast phenomenon of the displayed image of the secondary display area of ​​the display panel.

[0177] In some embodiments, Fig.17 As shown, in the second light-emitting pattern group 41B, in the same light-emitting pattern 41, the second sub-portion 412 surrounds the first sub-portion 411, and the shape of the outer boundary line of the orthographic projection of the second sub-portion 412 of the light-emitting pattern 41 on the plane where the display panel 100 is located is the same as the shape of the outer boundary line of the orthographic projection of the first sub-portion 411 of the light-emitting pattern 41 on the plane where the display panel 100 is located.

[0178] The orthographic projection of the second sub-portion 412 on the plane where the display panel 100 is located is in the shape of a ring, and the inner boundary line of the ring coincides with the outer boundary line of the orthographic projection of the first sub-portion 411 on the plane where the display panel 100 is located.

[0179] For example, the outer boundary line of the orthographic projection of the second sub-portion 412 of the luminous pattern 41 on the plane where the display panel 100 is located is a rectangle, and the outer boundary line of the orthographic projection of the first sub-portion 411 of the luminous pattern 41 on the plane where the display panel 100 is located is a rectangle.

[0180] For another example, the outer boundary line of the orthographic projection of the second sub-portion 412 of the luminous pattern 41 on the plane where the display panel 100 is located is a circle, and the outer boundary line of the orthographic projection of the first sub-portion 411 of the luminous pattern 41 on the plane where the display panel 100 is located is a circle.

[0181] For another example, the outer boundary line of the orthographic projection of the second sub-portion 412 of the luminous pattern 41 on the plane where the display panel 100 is located is a curved circle, and the outer boundary line of the orthographic projection of the first sub-portion 411 of the luminous pattern 41 on the plane where the display panel 100 is located is a curved circle.

[0182] In the process of preparing the second light-emitting pattern group 41B using the material of the mask plate and the light-emitting layer, the above-mentioned setting can reduce the probability that the orthographic projection of the formed light-emitting pattern 41 on the plane where the display panel 100 is located is difficult to completely cover the orthographic projection of the first opening 31 of the defining layer 30 on the plane where the display panel 100 is located, and can also make the distance between the boundary line of the orthographic projection of the first sub-portion 411 on the plane where the display panel 100 is located and the outer boundary line of the orthographic projection of the second sub-portion 412 on the plane where the display panel 100 is located more uniform (such as Fig.17 In the embodiment, S3=S4, S5=S6), thereby improving the color shift phenomenon of the light emitted by the first sub-portion 411 at different viewing angles, which is beneficial to improving the image display quality of the auxiliary display area A2.

[0183] In some embodiments, Figure 7 As shown, in the auxiliary display area A2, the orthographic projection of at least one second sub-portion 412 on the plane where the display panel 100 is located partially overlaps or has no overlap with the orthographic projection of the light-transmitting portion 32 on the plane where the display panel 100 is located.

[0184] For example, the orthographic projection of one or more second sub-portions 412 on the plane where the display panel 100 is located partially overlaps with the orthographic projection of the light-transmitting portion 32 on the plane where the display panel 100 is located. The second sub-portion 412 has a smaller thickness and a higher light transmittance, and the loss of light passing through the second sub-portion 412 is small or almost zero.

[0185] For another example, the orthographic projection of one or more second sub-portions 412 on the plane where the display panel 100 is located does not overlap with the orthographic projection of the light-transmitting portion 32 on the plane where the display panel 100 is located.

[0186] Thus, the area of ​​the second sub-portion 412 in the light-emitting pattern 41 can be made relatively large, so that the setting area of ​​the second sub-portion 412 is not limited by the light-transmitting portion 32 , thereby facilitating the optimization of the setting of the light-emitting pattern.

[0187] In some embodiments, Fig.18 , Fig.19 and Fig.23 As shown, the light emitting layer 40 includes a plurality of redundant patterns 43. The plurality of redundant patterns 43 are located in the auxiliary display area A2, and the redundant patterns 43 at least cover a portion of a light-transmitting portion 32. At least one redundant pattern 43 is connected to an adjacent light emitting pattern 41.

[0188] For example, the redundant pattern 43 covers a portion of an adjacent light-transmitting portion 32 . For another example, the redundant pattern 43 covers an adjacent light-transmitting portion 32 .

[0189] For example, one or more redundant patterns 43 are connected to adjacent light-emitting patterns 41. The connected redundant patterns 43 and the light-emitting patterns 41 are in the same layer and material. Thus, the redundant patterns 43 and the light-emitting patterns 41 can be formed synchronously in the same manufacturing process, which is conducive to simplifying the manufacturing process of the display panel 100.

[0190] The redundant pattern 43 has a smaller thickness and a higher light transmittance, and the loss of light passing through the redundant pattern 43 is smaller or almost zero, so that the influence on the light transmittance of the light-transmitting portion 32 covered by the redundant pattern 43 is smaller.

[0191] The mask plate has a plurality of openings and solid materials connecting the openings. The top view of the mask plate is roughly mesh-shaped, and the openings of the mask plate are arranged corresponding to the light-emitting patterns 41 to be formed. Since the sub-pixel density of the auxiliary display area A2 is less than the sub-pixel density of the main display area A1, the number of light-emitting patterns 41 in the auxiliary display area A2 is less than the number of light-emitting patterns 41 in the main display area A1 per unit area. When the area of ​​a single light-emitting pattern 41 in the main display area A1 is equal to the area of ​​a single light-emitting pattern 41 in the auxiliary display area A2, the total area of ​​the openings in the mask plate corresponding to the auxiliary display area A2 per unit area is less than the total area of ​​the openings in the mask plate corresponding to the main display area A1.

[0192] In the embodiment of the present disclosure, at least one redundant pattern 43 is provided to be connected to the adjacent light-emitting pattern 41, so that the connected redundant pattern 43 and the light-emitting pattern 41 can correspond to the same opening in the mask plate, that is, can be prepared and formed through the same opening in the mask plate, so that the setting of the redundant pattern 43 can be used to adjust the total opening area in different areas of the mask plate (here, the different areas of the mask plate are within the area corresponding to the mask plate and the auxiliary display area A2), and adjust the uniformity of the mass distribution of the actual material in the area of ​​the mask plate corresponding to the main display area A1 and the area corresponding to the auxiliary display area A2, so that the actual material in different areas of the mask plate is subjected to uniform force during the evaporation process, thereby reducing the difference between the light-emitting pattern 41 in the main display area A1 and the light-emitting pattern 41 in the auxiliary display area A2, thereby reducing the difference in the displayed images of the main display area A1 and the auxiliary display area A2, which is beneficial to improving the uniformity of the displayed image of the display panel 100.

[0193] In some examples, such as Fig.18 , Fig.19 and Fig.23 As shown, the light-emitting layer 40 includes a first light-emitting layer 401 , a second light-emitting layer 402 and a third light-emitting layer 403 .

[0194] For example, the first light-emitting layer 401, the second light-emitting layer 402, and the third light-emitting layer 403 are stacked. For example, the material of the first light-emitting layer 401, the material of the second light-emitting layer 402, and the material of the third light-emitting layer 403 are different.

[0195] like Fig.18 , Fig.19 and Fig.23 As shown, the plurality of redundant patterns 43 include: a plurality of first redundant patterns 431 , a plurality of second redundant patterns 432 , and a plurality of third redundant patterns 433 .

[0196] For example, Fig. 20 and Fig.24 As shown, the first pattern 421 and the first redundant pattern 431 are located in the first light emitting layer 401, and the first light emitting layer 401 is used to emit red light. The first pattern 421 and the first redundant pattern 431 are in the same layer and made of the same material. The mask plate forming the first light emitting layer 401 may be a first mask plate.

[0197] like Fig.21 and Fig.25 As shown, the second pattern 422 and the second redundant pattern 432 are located in the second light emitting layer 402, the second light emitting layer 402 is used to emit green light, and the second pattern 422 and the second redundant pattern 432 are in the same layer and made of the same material. The mask plate for forming the second light emitting layer 402 may be a second mask plate.

[0198] like Fig. 22 and Fig.26 As shown, the third pattern 423 and the third redundant pattern 433 are located in the third light emitting layer 403, the third light emitting layer 403 is used to emit blue light, and the third pattern 423 and the third redundant pattern 433 are in the same layer and made of the same material. The mask plate for forming the third light emitting layer 403 may be a third mask plate.

[0199] For example, Fig. 20 As shown, at least one first pattern 421 is connected to an adjacent first redundant pattern 431. Fig.21 As shown, at least one second pattern 422 is connected to an adjacent second redundant pattern 432. Fig. 22 As shown, at least one third pattern 423 is connected to an adjacent third redundant pattern 433 .

[0200] Thus, the first redundant pattern 431 can be used to adjust the uniformity of the mass distribution of the solid material in different regions of the first mask plate forming the first light-emitting layer 401, so that the solid material in different regions of the first mask plate is subjected to uniform force during the evaporation process, thereby reducing or avoiding the difference between the first pattern 421 in the main display area A1 and the first pattern 421 in the auxiliary display area A2, thereby reducing the difference in the displayed images of the main display area A1 and the auxiliary display area A2, which is conducive to improving the uniformity of the displayed image of the display panel 100. Similarly, the second redundant pattern 432 can be used to adjust the uniformity of the mass distribution of the solid material in different regions of the second mask plate forming the second light-emitting layer 402, and the third redundant pattern 433 can be used to adjust the uniformity of the mass distribution of the solid material in different regions of the third mask plate forming the third light-emitting layer 403, thereby improving the uniformity of the displayed image of the display panel 100.

[0201] There are various relationships between the redundant pattern 43 and the light-emitting pattern 41 , which can be selected and set as needed, and the embodiments of the present disclosure are not limited to this.

[0202] In some embodiments, as can be seen from the above, the second light-emitting pattern group 41B includes two adjacent first subgroups 410B. The first subgroup 410B includes a first pattern 421, a second pattern 422, and a third pattern 423. In the first subgroup 410B, the line connecting the centers of the orthographic projections of the first pattern 421, the second pattern 422, and the third pattern 423 on the plane where the display panel 100 is located is a triangle.

[0203] For example, Fig.19 As shown, two second patterns 422 in the second light-emitting pattern group 41B are arranged adjacent to each other.

[0204] In some examples, such as Fig.18 or Fig.19 As shown, the first redundant pattern 431 is connected to the adjacent first pattern 421 , the second redundant pattern 432 is connected to one or two adjacent second patterns 422 , and the third redundant pattern 433 is connected to the adjacent third pattern 423 .

[0205] For example, Fig.18 As shown, the first redundant pattern 431 is connected to the adjacent first pattern 421 , the second redundant pattern 432 is connected to an adjacent second pattern 422 , and the third redundant pattern 433 is connected to the adjacent third pattern 423 .

[0206] For example, Fig.19 As shown, the first redundant pattern 431 is connected to the adjacent first pattern 421 , the second redundant pattern 432 is connected to two adjacent second patterns 422 , and the third redundant pattern 433 is connected to the adjacent third pattern 423 .

[0207] The shape of the orthographic projection of the redundant pattern 43 on the plane where the display panel 100 is located can be selected and set as needed, and the embodiments of the present disclosure are not limited to this.

[0208] For example, Fig. 20 As shown, the shape of the orthographic projection of the first redundant pattern 431 on the plane where the display panel 100 is located is the same as the shape of the orthographic projection of the first pattern 421 connected to the first redundant pattern 431 on the plane where the display panel 100 is located, for example, both are rectangular.

[0209] For example, Fig.18 As shown, the shape of the orthographic projection of the second redundant pattern 432 on the plane where the display panel 100 is located is the same as the shape of the orthographic projection of the second pattern 422 connected to the second redundant pattern 432 on the plane where the display panel 100 is located, for example, both are rectangular.

[0210] For example, Fig.21 As shown, the second redundant pattern 432 is connected to two adjacent second patterns 422 , and the shape of the orthographic projection of the second redundant pattern 432 on the plane where the display panel 100 is located is a trapezoid.

[0211] For example, Fig. 22 As shown, the shape of the orthographic projection of the third redundant pattern 433 on the plane where the display panel 100 is located is the same as the shape of the orthographic projection of the third pattern 423 connected to the third redundant pattern 433 on the plane where the display panel 100 is located, for example, both are rectangles.

[0212] Thus, the connected first redundant pattern 431 and the first pattern 421 can be formed by the same opening of the first mask plate, which simplifies the preparation process of the first redundant pattern 431, and the opening corresponding to the first redundant pattern 431 can be used to adjust the uniformity of the mass distribution of the solid material in different regions of the first mask plate, thereby reducing or avoiding the difference between the first pattern 421 in the main display area A1 and the first pattern 421 in the auxiliary display area A2, thereby reducing the difference between the images displayed in the main display area A1 and the auxiliary display area A2, which is beneficial to improving the uniformity of the image displayed by the display panel 100. Similarly, the second redundant pattern 432 can be used to reduce and adjust the uniformity of the mass distribution of the solid material in different regions of the second mask plate, and the third redundant pattern 433 can be used to reduce and adjust the uniformity of the mass distribution of the solid material in different regions of the third mask plate, thereby reducing the difference between the images displayed in the main display area A1 and the auxiliary display area A2, which is beneficial to improving the uniformity of the image displayed by the display panel 100.

[0213] For example, Fig.19As shown, the second redundant pattern 432 partially overlaps with the adjacent first redundant pattern 431 in their orthographic projection on the plane where the display panel 100 is located, the second redundant pattern 432 partially overlaps with the adjacent third redundant pattern 433 in their orthographic projection on the plane where the display panel 100 is located, and the first redundant pattern 431 and the adjacent third redundant pattern 433 have no overlap in their orthographic projection on the plane where the display panel 100 is located.

[0214] Thus, the area of ​​the second redundant pattern 432 can be made relatively large, so that the design areas of the first redundant pattern 431, the second redundant pattern 432 and the third redundant pattern 433 are more flexible, avoiding the situation of space limitation, so that the adjustment of the actual material mass distribution of the first mask plate, the second mask plate and the third mask plate is less restricted, which is beneficial to reducing the difference in the displayed images of the main display area A1 and the auxiliary display area A2, and improving the uniformity of the displayed images of the display panel 100.

[0215] In other embodiments, it can be seen from the above that the second light-emitting pattern group 41B includes two adjacent first subgroups 410B. The first subgroup 410B includes a first pattern 421, a second pattern 422 and a third pattern 423. In the first subgroup 410B, the line connecting the centers of the orthographic projections of the first pattern 421, the second pattern 422 and the third pattern 423 on the plane where the display panel 100 is located is a triangle.

[0216] For example, Fig.23 As shown, in the second light-emitting pattern group 41B, two third patterns 423 are arranged adjacent to each other.

[0217] In some examples, such as Fig.23 As shown, the first redundant pattern 431 is spaced apart from the first pattern 421 , and a line connecting the centers of the orthographic projections of the first redundant pattern 431 and two first patterns 421 of the second light-emitting pattern group 41B on the plane where the display panel 100 is located forms a triangle.

[0218] Therefore, the first redundant pattern 431 can correspond to a separate opening in the mask plate, and the opening corresponding to the first redundant pattern 431 can be used to adjust the uniformity of the distribution of the actual material mass in different areas of the mask plate, thereby reducing or avoiding the difference between the first pattern 421 in the main display area A1 and the first pattern 421 in the sub-display area A2, thereby reducing the difference in the displayed images of the main display area A1 and the sub-display area A2, which is beneficial to improving the quality of the image displayed by the display panel 100.

[0219] In other examples, such as Fig.23As shown, the second redundant pattern 432 is spaced apart from the second pattern 422 , and a line connecting the centers of the orthographic projections of the second redundant pattern 432 and two second patterns 422 of the second light-emitting pattern group 41B on the plane where the display panel 100 is located forms a triangle.

[0220] Therefore, the second redundant pattern 432 can correspond to a separate opening in the mask plate, and the opening corresponding to the second redundant pattern 432 can be used to adjust the uniformity of the distribution of the actual material mass in different areas of the mask plate, thereby reducing or avoiding the difference between the second pattern 422 in the main display area A1 and the second pattern 422 in the auxiliary display area A2, thereby reducing the difference in the displayed images of the main display area A1 and the auxiliary display area A2, which is beneficial to improving the quality of the image displayed by the display panel 100.

[0221] In some other examples, such as Fig.23 As shown, the first redundant pattern 431 is arranged at intervals with the first pattern 421, and the first redundant pattern 431 and the two first patterns 421 of the second light-emitting pattern group 41B are connected between the centers of the orthographic projections on the plane where the display panel 100 is located, forming a triangle. In addition, the second redundant pattern 432 is arranged at intervals with the second pattern 422, and the second redundant pattern 432 and the two second patterns 422 of the second light-emitting pattern group 41B are connected between the centers of the orthographic projections on the plane where the display panel 100 is located, forming a triangle.

[0222] Thus, the difference between the first pattern 421 in the main display area A1 and the first pattern 421 in the sub-display area A2, as well as the difference between the second pattern 422 in the main display area A1 and the second pattern 422 in the sub-display area A2 can be reduced or avoided, thereby reducing the difference in displayed images between the main display area A1 and the sub-display area A2, which is beneficial to improving the uniformity of the displayed image of the display panel 100.

[0223] For example, Fig.24 As shown, the shape of the orthographic projection of the first redundant pattern 431 on the plane where the display panel 100 is located is the same as the shape of the orthographic projection of the first pattern 421 spaced apart from the first redundant pattern 431 on the plane where the display panel 100 is located, for example, both are circles.

[0224] For example, Fig.25 As shown, the shape of the orthographic projection of the second redundant pattern 432 on the plane where the display panel 100 is located is the same as the shape of the orthographic projection of the second pattern 422 spaced apart from the second redundant pattern 432 on the plane where the display panel 100 is located, for example, both are circles.

[0225] For example, Fig.23As shown, the third redundant pattern 433 is connected to two adjacent third luminous patterns 41. The first redundant pattern 431 and the second redundant pattern 432 at least partially overlap with the orthographic projection of the third redundant pattern 433 on the plane where the display panel 100 is located. For example, the overlapping portion does not affect the transmission of light.

[0226] For example, the two adjacent third patterns 423 connected to the third redundant pattern 433 may be connected to each other, referring to Fig.26 The two adjacent third patterns 423 connected to the third redundant pattern 433 may also be arranged at intervals.

[0227] For example, the first redundant pattern 431 partially overlaps with the orthographic projection of the third redundant pattern 433 on the plane where the display panel 100 is located, and the orthographic projection of the second redundant pattern 432 on the plane where the display panel 100 is located is within the orthographic projection range of the third redundant pattern 433 on the plane where the display panel 100 is located.

[0228] For another example, the orthographic projection of the first redundant pattern 431 on the plane where the display panel 100 is located is within the orthographic projection range of the third redundant pattern 433 on the plane where the display panel 100 is located, and the orthographic projections of the second redundant pattern 432 and the third redundant pattern 433 on the plane where the display panel 100 are located partially overlap.

[0229] For another example, the first redundant pattern 431 and the second redundant pattern 432 partially overlap with the orthographic projection of the third redundant pattern 433 on the plane where the display panel 100 is located.

[0230] For example, Fig.23 As shown, the orthographic projection of the first redundant pattern 431 on the plane where the display panel 100 is located is located within the orthographic projection range of the third redundant pattern 433 on the plane where the display panel 100 is located, and the orthographic projection of the second redundant pattern 432 on the plane where the display panel 100 is located is located within the orthographic projection range of the third redundant pattern 433 on the plane where the display panel 100 is located.

[0231] Therefore, the connected third redundant pattern 433 and the third pattern 423 can correspond to the same opening in the mask plate, that is, they can be prepared and formed through the same opening in the mask plate, which simplifies the preparation process of the third redundant pattern 433, and the opening corresponding to the third redundant pattern 433 can be used to adjust the uniformity of the distribution of the actual material mass in different areas of the mask plate, reduce or avoid the difference between the third pattern 423 in the main display area A1 and the third pattern 423 in the auxiliary display area A2, thereby reducing the difference in the displayed images of the main display area A1 and the auxiliary display area A2, which is beneficial to improving the quality of the displayed image of the display panel 100.

[0232] Moreover, the first redundant pattern 431 and the second redundant pattern 432 at least partially overlap with the orthographic projection of the third redundant pattern 433 on the plane where the display panel 100 is located, so that the area of ​​the third redundant pattern 433 can be set relatively large, so that the first redundant pattern 431, the second redundant pattern 432 and the third redundant pattern 433 have greater flexibility in designing the area, avoiding the situation of space limitation, so that the adjustment of the actual material mass distribution of the first mask plate, the second mask plate and the third mask plate is less constrained, which is beneficial to reducing the difference in the displayed images of the main display area A1 and the auxiliary display area A2, and improving the uniformity of the displayed images of the display panel 100.

[0233] For example, Fig.26 As shown, two adjacent third patterns 423 are connected and connected to the third redundant pattern 433, and the shape of the orthographic projection of the whole formed by the two connected third patterns 423 and the third redundant pattern 433 on the plane where the display panel 100 is located is a trapezoid-like or other special shape. The setting of this shape is to make the spacing between the two adjacent wholes (the whole here refers to the whole formed by the two connected third patterns 423 and the third redundant pattern 433) appropriate, so that the spacing between the two openings in the third mask plate for preparing the two adjacent wholes is small, so that the mass of the solid material between the two openings is small, so that the difference between the mass of the solid material in the unit area corresponding to the auxiliary display area A2 in the third mask plate and the mass of the solid material in the unit area corresponding to the main display area A1 is small, thereby reducing the difference between the light-emitting pattern of the auxiliary display area A2 and the light-emitting pattern of the main display area A1, and thus improving the uniformity of the image displayed by the display panel 100.

[0234] It should be noted that the above-mentioned special shapes are only used to distinguish from other shapes. The special shape can be an irregular closed shape composed of arc segments and straight line segments, or an irregular shape composed of multiple straight line segments.

[0235] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel has a display area; the display area includes: a main display area and a sub-display area; the sub-display area is located at least on one side of the main display area; the display panel includes a defining layer and a light-emitting layer stacked; The defining layer has a plurality of first openings located in the main display area and the auxiliary display area and a plurality of light-transmitting portions located in the auxiliary display area; The light-emitting layer includes a plurality of light-emitting patterns, at least one of the plurality of light-emitting patterns includes a first sub-portion and a second sub-portion connected to each other; the first sub-portion is located in the first opening, and the second sub-portion is located on the defining layer; A plurality of light-emitting patterns located in the main display area and used for emitting light of different colors constitute a first light-emitting pattern group, and a plurality of light-emitting patterns located in the auxiliary display area and used for emitting light of different colors constitute a second light-emitting pattern group; an arrangement density of the plurality of first light-emitting pattern groups in the main display area is greater than an arrangement density of the plurality of second light-emitting pattern groups in the auxiliary display area; The number of light-emitting patterns included in the first light-emitting pattern group is different from the number of light-emitting patterns included in the second light-emitting pattern group; the sum of the areas of the orthographic projections of multiple first sub-divisions in the first light-emitting pattern group on the plane where the display panel is located is greater than the sum of the areas of the orthographic projections of multiple first sub-divisions in the second light-emitting pattern group on the plane where the display panel is located.

2. The display panel according to claim 1, characterized in that: The sum of the areas of the orthographic projections of the multiple first sub-divisions in the first light emitting pattern group on the plane where the display panel is located is 2 to 4 times the sum of the areas of the orthographic projections of the multiple first sub-divisions in the second light emitting pattern group on the plane where the display panel is located.

3. The display panel according to claim 1 or 2, characterized in that: The plurality of light emitting patterns include: a plurality of first patterns, a plurality of second patterns and a plurality of third patterns for emitting light of different colors; The first light-emitting pattern group includes a first pattern, two second patterns and a third pattern; in the first light-emitting pattern group, a line connecting the centers of the orthographic projections of the two second patterns on the plane where the display panel is located intersects with a line connecting the centers of the orthographic projections of the first pattern and the third pattern on the plane where the display panel is located; The second light-emitting pattern group includes two adjacent first subgroups; the first subgroup includes a first pattern, a second pattern and a third pattern; in the first subgroup, the line connecting the centers of the orthographic projections of the first pattern, the second pattern and the third pattern on the plane where the display panel is located is a triangle.

4. The display panel according to claim 3, characterized in that: Among the second pattern and the third pattern in the second light-emitting pattern group, one is a target pattern and the other is a non-target pattern; The plurality of light-emitting patterns in the second light-emitting pattern group are arranged in two rows, the two target patterns are arranged in a first row, and the two non-target patterns and the two first patterns are arranged alternately in the direction of the row in a second row; The center of the orthographic projection of the adjacent first pattern on the plane where the display panel is located and the center of the orthographic projection of the non-target pattern on the plane where the display panel is located are staggered with the center of the orthographic projection of the target pattern on the plane where the display panel is located in the first direction; the first direction is perpendicular to the row direction and parallel to the plane where the display panel is located.

5. The display panel according to claim 4, characterized in that: In the second light-emitting pattern group, the interval between the first sub-portions of two target patterns ranges from 6 μm to 13 μm.

6. The display panel according to claim 4 or 5, characterized in that: The second sub-portions of the two target patterns are connected to each other.

7. The display panel according to any one of claims 4 to 6, characterized in that: A size of the first sub-portion of the target pattern along the row direction is greater than or equal to a size of the first sub-portion of the target pattern along the first direction.

8. The display panel according to claim 7, characterized in that: In the first subset, in the first direction, the first sub-portion of the target pattern is partially opposite to the first sub-portion of the first pattern and the first sub-portion of the non-target pattern respectively.

9. The display panel according to claim 3, characterized in that: In the second light emitting pattern group, the orthographic projection patterns of the two first subgroups on the plane where the display panel is located are centrally symmetric about a center point of the orthographic projection pattern of the second light emitting pattern group on the plane where the display panel is located.

10. The display panel according to any one of claims 1 to 9, characterized in that: In the second light-emitting pattern group, the shape of the orthographic projection of the first sub-section on the plane where the display panel is located includes a rectangle, a square, a circle or a curved circle; the curved circle includes connected semicircular arc edges and semi-elliptical arc edges, and the major axis of the semi-ellipse is equal to the diameter of the semicircle.

11. The display panel according to claim 10, characterized in that: In the curved circle, compared with the arc edge of the semicircle, the arc edge of the semi-ellipse is farther away from the center of the second light-emitting pattern group.

12. The display panel according to any one of claims 1 to 11, characterized in that: In the second light-emitting pattern group, in the same light-emitting pattern, the second sub-portion surrounds the first sub-portion, and the shape of the outer boundary line of the orthographic projection of the second sub-portion of the light-emitting pattern on the plane where the display panel is located is the same as the shape of the outer boundary line of the orthographic projection of the first sub-portion of the light-emitting pattern on the plane where the display panel is located.

13. The display panel according to any one of claims 1 to 12, characterized in that: In the auxiliary display area, an orthographic projection of at least one of the second sub-portions on the plane where the display panel is located partially overlaps or has no overlap with an orthographic projection of the light-transmitting portion on the plane where the display panel is located.

14. The display panel according to any one of claims 1 to 13, characterized in that: The plurality of second light emitting pattern groups are arranged in a plurality of rows; in two adjacent rows of second light emitting pattern groups, two second light emitting pattern groups located in different rows and adjacent to each other are staggered, and two second light emitting device groups located in the same row and adjacent to each other are separated by the light-transmitting portion.

15. The display panel according to any one of claims 1 to 14, characterized in that: The light-emitting layer includes a plurality of redundant patterns; the plurality of redundant patterns are located in the auxiliary display area, and the redundant patterns at least cover a portion of one of the light-transmitting portions; and at least one redundant pattern is connected to an adjacent light-emitting pattern.

16. The display panel according to claim 15, characterized in that: The plurality of redundant patterns include: a plurality of first redundant patterns, a plurality of second redundant patterns and a plurality of third redundant patterns; the plurality of light emitting patterns include: a plurality of first patterns, a plurality of second patterns and a plurality of third patterns for emitting light of different colors; The light-emitting layer includes a first light-emitting layer, a second light-emitting layer and a third light-emitting layer; the first pattern and the first redundant pattern are located in the first light-emitting layer, the second pattern and the second redundant pattern are located in the second light-emitting layer, and the third pattern and the third redundant pattern are located in the third light-emitting layer.

17. The display panel according to claim 16, characterized in that: The second light-emitting pattern group includes two adjacent first subgroups; the first subgroup includes a first pattern, a second pattern and a third pattern; in the first subgroup, the line connecting the centers of the orthographic projections of the first pattern, the second pattern and the third pattern on the plane where the display panel is located is a triangle; The first redundant pattern is spaced apart from the first pattern, and a line connecting the first redundant pattern and two first patterns of the second luminous pattern group between centers of orthographic projections on the plane where the display panel is located forms a triangle, and / or the second redundant pattern is spaced apart from the second pattern, and a line connecting the second redundant pattern and two second patterns of the second luminous pattern group between centers of orthographic projections on the plane where the display panel is located forms a triangle.

18. The display panel according to claim 17, characterized in that: The third redundant pattern is connected to two adjacent third patterns; the first redundant pattern and the second redundant pattern at least partially overlap with the orthographic projections of the third redundant pattern on the plane where the display panel is located.

19. The display panel according to claim 16, characterized in that: The second light-emitting pattern group includes two adjacent first subgroups; the first subgroup includes a first pattern, a second pattern and a third pattern; and in the first subgroup, the line connecting the centers of the orthographic projections of the first pattern, the second pattern and the third pattern on the plane where the display panel is located is a triangle; the two second patterns are arranged adjacent to each other; The first redundant pattern is connected to the adjacent first pattern, the second redundant pattern is connected to one or two adjacent second patterns; the third redundant pattern is connected to the adjacent third pattern; the second redundant pattern partially overlaps with the adjacent first redundant pattern in terms of their orthographic projection on the plane where the display panel is located, the second redundant pattern partially overlaps with the adjacent third redundant pattern in terms of their orthographic projection on the plane where the display panel is located, and the first redundant pattern has no overlap with the adjacent third redundant pattern in terms of their orthographic projection on the plane where the display panel is located.

20. The display panel according to any one of claims 1 to 19, characterized in that: The light emitting patterns include: a first pattern, a second pattern and a third pattern for emitting light of different colors; The first pattern is used to emit red light, the second pattern is used to emit green light, and the third pattern is used to emit blue light; or, the first pattern is used to emit red light, the second pattern is used to emit blue light, and the third pattern is used to emit green light.

21. A display device, characterized in that: include: The display panel and the optical element according to any one of claims 1 to 20; The optical element is located in the auxiliary display area of ​​the display panel and on the non-light emitting side of the display panel.

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