Display panel and preparation method therefor, and display apparatus

Abstract

A display panel and a preparation method therefor, and a display apparatus. The display panel (10) comprises a substrate (1), a first conductive layer (21), a first planarization layer (51), a first electrode layer (4), and a support portion (8). The first conductive layer is located on one side of the substrate. The first planarization layer is located on the side of the first conductive layer away from the substrate, and the first planarization layer is provided with a first through hole (511). The first electrode layer is located on the side of the first planarization layer away from the substrate, the first electrode layer comprises a first electrode (41) of a light-emitting device (F), and the first electrode located in a secondary display region (A2) is electrically connected to the first conductive layer by means of the first through hole. The support portion is located in the secondary display area, the first planarization layer covers the support portion, the support portion is disposed close to the first through hole, and the support portion is located on the side of the first through hole close to the center of the first electrode. The material of the support portion is different from the material of the first planarization layer. The described display panel is used to display an image.

Description

Display panel, manufacturing method thereof and display device TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, and in particular to a display panel, a manufacturing method thereof and a display device. BACKGROUND

[0002] With the continuous development of display technology, display devices have gradually spread in people's lives. Among them, the organic light-emitting diode (OLED) display panel has been widely used in mobile phones, televisions, notebook computers and other display devices due to its self-luminous, low power consumption, wide viewing angle, fast response speed, high contrast and other advantages.

[0003] SUMMARY

[0004] In one aspect, a display panel is provided. The display panel includes a main display area and a sub-display area, the main display area surrounds at least part of the sub-display area. The display panel includes at least one color light emitting device located in the main display area and the sub-display area, the effective light emitting area of one of the at least one color light emitting device located in the main display area is greater than the effective light emitting area of one of the at least one color light emitting device with the same color located in the sub-display area.

[0005] The display panel further includes a substrate, a first conductive layer, a first planarization layer, a first electrode layer and a support portion. The first conductive layer is located on one side of the substrate. The first planarization layer is located on the side of the first conductive layer away from the substrate, and the first planarization layer is provided with a first through hole. The first electrode layer is located on the side of the first planarization layer away from the substrate, and the first electrode layer includes a first electrode of the at least one color light emitting device, the first electrode of the at least one color light emitting device located in the sub-display area is electrically connected through the first through hole and the first conductive layer. The support portion is located in the sub-display area, the first planarization layer covers the support portion, the support portion is arranged close to the first through hole, and the support portion is located on the side of the first through hole close to the center of the first electrode. The material of the support portion is different from the material of the first planarization layer.

[0006] In some embodiments, the support portion is embedded in the first planarization layer, and along the thickness direction of the display panel, there is a gap between the support portion and the first conductive layer, and there is a gap between the support portion and the first electrode.

[0007] In some embodiments, the support portion and the first conductive layer are in contact.

[0008] In some embodiments, the support portion and the first conductive layer are of the same material.

[0009] In some embodiments, the material of the support portion comprises at least one of a metal and a metal oxide.

[0010] In some embodiments, the support portion surrounds at least part of the first via.

[0011] In some embodiments, the first via has a first opening on a side surface of the first planarization layer distal to the substrate, and a second opening on a side surface of the first planarization layer proximal to the substrate, the first opening having a larger area than the second opening. In a projection onto the substrate, at least part of the support portion is between a boundary of the first opening and a boundary of the second opening.

[0012] In some embodiments, the display panel further comprises a pixel definition layer. The pixel definition layer is on a side of the first electrode layer distal to the substrate, and the pixel definition layer has a pixel opening. The first via has a first opening on a side surface of the first planarization layer distal to the substrate, and a second opening on a side surface of the first planarization layer proximal to the substrate, the first opening having a larger area than the second opening. In a projection onto the substrate, at least part of the support portion is between a boundary of the second opening and a boundary of the pixel opening.

[0013] In some embodiments, a straight line passing through a center of the first via and along a predetermined direction is a reference line, the predetermined direction being a direction in which the main portion and the connecting portion of the first electrode are connected. An intersection of a boundary of the first via and the reference line is a first intersection and a second intersection, respectively, the first intersection being distal to the pixel opening compared to the second intersection. An intersection of a boundary of the pixel opening and the reference line is a third intersection and a fourth intersection, respectively, the third intersection being proximal to the first via compared to the fourth intersection. A distance between the second intersection and the third intersection is a first length, and a distance between the third intersection and the fourth intersection is a second length.

[0014] The at least one color of light emitting device comprises a first color light emitting device, the second length corresponding to the first color light emitting device being smaller than the second length corresponding to other color light emitting devices. The support portion comprises a first support portion, the first support portion being disposed proximal to a first via corresponding to a first electrode in the first color light emitting device.

[0015] In some embodiments, the light-emitting device of at least one color further includes a second color light-emitting device, and the support portion further includes a second support portion, which is disposed near the first through hole corresponding to the first electrode in the second color light-emitting device. The second length corresponding to the first color light-emitting device is less than the second length corresponding to the second color light-emitting device. The dimension of the first support portion along the preset direction axis is greater than the dimension of the second support portion along the preset direction axis.

[0016] In some embodiments, the first length is L1 and the second length is L2. L1 is greater than or equal to 7 μm; or, L1 is less than 7 μm, L2 = n × L1 + m, -1.5 ≥ n ≥ -3, 30 ≥ m ≥ 20.

[0017] In some embodiments, the light-emitting devices of the at least one color located in the sub-display area are arranged in an array along the row and column directions. Along the column direction, the first through-holes corresponding to the first electrodes in adjacent rows of the first-color light-emitting devices are located between the pixel openings corresponding to the first electrodes in adjacent rows of the first-color light-emitting devices. Alternatively, along the row direction, the first through-holes corresponding to the first electrodes in adjacent columns of the first-color light-emitting devices are located between the pixel openings corresponding to the first electrodes in adjacent columns of the first-color light-emitting devices.

[0018] In some embodiments, the light-emitting device of at least one color further includes a light-emitting device of a second color. Along the column direction, the first through-holes corresponding to the first electrodes in two adjacent rows of the second color light-emitting devices are located between the pixel openings corresponding to the first electrodes in two adjacent rows of the second color light-emitting devices. Alternatively, along the row direction, the first through-holes corresponding to the first electrodes in two adjacent columns of the second color light-emitting devices are located between the pixel openings corresponding to the first electrodes in two adjacent columns of the second color light-emitting devices.

[0019] In some embodiments, the inner diameters of the pixel openings along different axial directions are not completely equal, and the pixel openings along a preset direction have a maximum inner diameter value, wherein the preset direction is the direction in which the main body portion and the connecting portion of the first electrode are connected.

[0020] In some embodiments, at least two of the first electrodes located in the sub-display area are electrically connected through the same first via and the first conductive layer.

[0021] In some embodiments, the two first electrodes are electrically connected through the same first via and the first conductive layer, and the two first electrodes are located on opposite sides of the first via.

[0022] In some embodiments, the support portion is disposed around the first through hole. Alternatively, there are two supports, located on opposite sides of a first through hole.

[0023] In some embodiments, the display panel further includes a second conductive layer, a second planarization layer, a first pixel circuit, and a second pixel circuit. The second conductive layer is located on the side of the first conductive layer closest to the substrate. The second planarization layer is located between the second conductive layer and the first conductive layer. The first pixel circuit is located in the main display area, and at least one light-emitting device of a certain color located in the main display area is electrically connected to the corresponding first pixel circuit. The light-emitting devices of at least one color located in the main display area overlap with the corresponding first pixel circuit in the thickness direction of the display panel.

[0024] The second pixel circuit is located in the main display area, and at least one light-emitting device of a certain color located in the sub-display area is electrically connected to the corresponding second pixel circuit at least through conductive lines in the first conductive layer and / or conductive lines in the second conductive layer. The light-emitting devices of at least one color located in the sub-display area do not overlap with the corresponding second pixel circuit in the thickness direction of the display panel. Alternatively, the second pixel circuit is located in the sub-display area, and at least one light-emitting device of a certain color located in the sub-display area is electrically connected to the corresponding second pixel circuit at least through conductive portions in the first conductive layer and / or conductive portions in the second conductive layer. The light-emitting devices of at least one color located in the sub-display area overlap with the corresponding second pixel circuit in the thickness direction of the display panel.

[0025] On the other hand, a display panel is provided. The display panel includes a main display area and a sub-display area, the main display area surrounding at least a portion of the sub-display area. The display panel includes light-emitting devices of at least one color located in the main display area and the sub-display area, wherein the effective light-emitting area of ​​one of the at least one color light-emitting devices located in the main display area is greater than the effective light-emitting area of ​​one of the at least one color light-emitting devices of the same color located in the sub-display area.

[0026] The display panel further includes a substrate, a first conductive layer, a first planarization layer, a first electrode layer, and a pixel definition layer. The first conductive layer is located on one side of the substrate. The first planarization layer is located on the side of the first conductive layer away from the substrate, and the first planarization layer has a first via. The first electrode layer is located on the side of the first planarization layer away from the substrate, and the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color. The first electrodes of the light-emitting devices of at least one color located in the sub-display area are connected to the first conductive layer through the first via. The pixel definition layer is located on the side of the first electrode layer away from the substrate, and the pixel definition layer has a pixel opening. The first electrode includes a main body and a connecting portion. The main body and the pixel opening overlap in the thickness direction of the display panel. The connecting portion is electrically connected to the main body and is electrically connected to the first conductive layer through the first via.

[0027] A straight line passing through the center of the first through-hole and along a preset direction is designated as a reference line. The preset direction is the direction in which the main body and connecting portion of the first electrode connect. The intersection points of the boundary of the first through-hole and the reference line are the first intersection point and the second intersection point, respectively. The first intersection point is farther from the pixel opening than the second intersection point. The intersection points of the boundary of the pixel opening and the reference line are the third intersection point and the fourth intersection point, respectively. The third intersection point is closer to the first through-hole than the fourth intersection point. The distance between the second and third intersection points is a first length, and the distance between the third and fourth intersection points is a second length. The first length is L1, and the second length is L2. L1 is greater than or equal to 7 μm. Alternatively, if L1 is less than 7 μm, L2 = n × L1 + m, -1.5 ≥ n ≥ -3, and 30 ≥ m ≥ 20.

[0028] In another aspect, a display panel is provided. The display panel includes a main display area and a secondary display area, the main display area surrounding at least a portion of the secondary display area. The display panel includes light-emitting devices of at least one color located in the main display area and the secondary display area, wherein the effective light-emitting area of ​​one of the at least one color light-emitting devices located in the main display area is greater than the effective light-emitting area of ​​one of the at least one color light-emitting devices of the same color located in the secondary display area.

[0029] The display panel further includes a substrate, a first conductive layer, a first planarization layer, a first electrode layer, and a pixel definition layer. The first conductive layer is located on one side of the substrate. The first planarization layer is located on the side of the first conductive layer away from the substrate, and the first planarization layer has a first via. The first electrode layer is located on the side of the first planarization layer away from the substrate, and the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color. The first electrodes of the light-emitting devices of at least one color located in the sub-display area pass through the first via and are connected to the first conductive layer. The first electrode includes a main body and a connecting portion. The connecting portion is electrically connected to the main body and also passes through the first via and is electrically connected to the first conductive layer. The pixel definition layer is located on the side of the first electrode layer away from the substrate. The pixel definition layer has pixel openings, and the main body and the pixel openings overlap in the thickness direction of the display panel. The inner diameters of the pixel openings are not completely equal along different axial directions, and the pixel openings have a maximum inner diameter value along a predetermined direction, which is the direction in which the main body and the connecting portion of the first electrode are connected.

[0030] In another aspect, a display panel is provided. The display panel includes a main display area and a secondary display area, the main display area surrounding at least a portion of the secondary display area. The display panel includes light-emitting devices of at least one color located in the main display area and the secondary display area, wherein the effective light-emitting area of ​​one of the at least one color light-emitting devices located in the main display area is greater than the effective light-emitting area of ​​one of the at least one color light-emitting devices of the same color located in the secondary display area.

[0031] The display panel further includes a substrate, a first conductive layer, a first planarization layer, and a first electrode layer. The first conductive layer is located on one side of the substrate. The first planarization layer is located on the side of the first conductive layer away from the substrate, and the first planarization layer has a first via. The first electrode layer is located on the side of the first planarization layer away from the substrate, and the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color. The first electrodes of at least two light-emitting devices of at least one color located in the sub-display area pass through the same first via and are electrically connected to the first conductive layer.

[0032] In another aspect, a display panel is provided. The display panel includes a main display area and a secondary display area, the main display area surrounding at least a portion of the secondary display area. The display panel includes light-emitting devices of at least one color located in the main display area and the secondary display area, wherein the effective light-emitting area of ​​one of the at least one color light-emitting devices located in the main display area is greater than the effective light-emitting area of ​​one of the at least one color light-emitting devices of the same color located in the secondary display area.

[0033] The display panel further includes a substrate, a first conductive layer, a first planarization layer, a first electrode layer, and a pixel definition layer. The first conductive layer is located on one side of the substrate. The first planarization layer is located on the side of the first conductive layer away from the substrate, and the first planarization layer has a first via. The first electrode layer is located on the side of the first planarization layer away from the substrate, and the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color. The first electrodes of the light-emitting devices of at least one color located in the sub-display area are connected to the first conductive layer through the first via. The pixel definition layer is located on the side of the first electrode layer away from the substrate. The pixel definition layer has pixel openings, and the first electrodes and the pixel openings overlap in the thickness direction of the display panel.

[0034] The light-emitting devices of at least one color located in the sub-display area are arranged in an array along the row and column directions. The light-emitting devices of at least one color include light-emitting devices of a first color. Along the column direction, a first through-hole corresponding to the first electrode in two adjacent rows of the first color light-emitting devices is located between the pixel openings corresponding to the first electrodes in two adjacent rows of the first color light-emitting devices. Alternatively, along the row direction, a first through-hole corresponding to the first electrode in two adjacent columns of the first color light-emitting devices is located between the pixel openings corresponding to the first electrodes in two adjacent columns of the first color light-emitting devices.

[0035] In another aspect, a method for manufacturing a display panel is provided. The display panel includes a main display area and a sub-display area, the main display area surrounding at least a portion of the sub-display area. The display panel includes light-emitting devices of at least one color located in the main display area and the sub-display area, wherein the effective light-emitting area of ​​one of the at least one color light-emitting devices located in the main display area is greater than the effective light-emitting area of ​​one of the at least one color light-emitting devices of the same color located in the sub-display area.

[0036] The method for manufacturing the display panel includes the following steps:

[0037] A first conductive layer is formed on one side of the substrate.

[0038] A first planarization layer is formed on the side of the first conductive layer away from the substrate. In the region of the first planarization layer where the first via is to be formed, the surface of the first planarization layer on the side away from the substrate protrudes toward the side away from the substrate.

[0039] A first through-hole is formed within the first planarization layer.

[0040] A first electrode layer is formed on the side of the first planarization layer away from the substrate. The first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color, and the first electrodes of the light-emitting devices of at least one color located in the sub-display area are electrically connected through the first via and the first conductive layer.

[0041] In another aspect, a display device is provided. The display device includes a display panel and optical components as described in any of the above embodiments. The optical components are located on the non-display side of the display panel and overlap with a sub-display area within the display panel in the thickness direction of the display panel. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0043] Figure 1 is a structural diagram of a display device according to some embodiments;

[0044] Figure 2 is a cross-sectional view of a partial area of ​​a display device according to some embodiments;

[0045] Figure 3A is a plan view of a display panel according to some embodiments;

[0046] Figure 3B is a plan view of a display panel according to some embodiments;

[0047] Figure 3C is a plan view of a partial area of ​​a display panel according to some embodiments;

[0048] Figure 4 is a partial plan view of a display panel according to some embodiments;

[0049] Figure 5 is a structural diagram of the light-emitting device in a display panel according to some embodiments;

[0050] Figure 6 is a structural diagram of the light-emitting device in a display panel according to some embodiments;

[0051] Figure 7 is a cross-sectional view of the display panel shown in Figure 3A along the section line mm;

[0052] Figure 8 is a cross-sectional view of the display panel shown in Figure 3A along section line nn;

[0053] Figure 9A is a cross-sectional view of the display panel shown in Figure 3B along section line oo;

[0054] Figure 9B is a cross-sectional view of the display panel shown in Figure 3B along the section line pp;

[0055] Figure 10 is a cross-sectional view of a partial region of the driving layer in a display panel according to some embodiments;

[0056] Figure 11 is a cross-sectional view of a partial region of the first planarization layer in a display panel according to some embodiments;

[0057] Figure 12 is a planar structural diagram of a first via in a first planarization layer, a pixel opening in a pixel definition layer, and a first electrode in a light-emitting device according to some embodiments.

[0058] Figure 13 is a cross-sectional view of a partial region of the first planarization layer, pixel definition layer and first electrode in the light-emitting device in a display panel according to some embodiments;

[0059] Figure 14 is a partial film layer structure diagram of a sub-display area of ​​a display panel according to some embodiments;

[0060] Figure 15 is a partial film layer structure diagram of a sub-display area of ​​a display panel according to some embodiments;

[0061] Figure 16 is a partial diagram of the film layer structure of a sub-display area of ​​a display panel according to some embodiments;

[0062] Figure 17 is a partial diagram of the film layer structure of a sub-display area of ​​a display panel according to some embodiments;

[0063] Figure 18 is a cross-sectional view of a partial region of the first planarization layer, pixel definition layer and first electrode in the light-emitting device in a display panel according to some embodiments;

[0064] Figure 19 is a planar structural diagram of the support portion, the first through hole, the pixel opening, and the first electrode in the light-emitting device within a display panel according to some embodiments;

[0065] Figure 20 is a planar structural diagram of the support portion, the first through hole, the pixel opening, and the first electrode in the light-emitting device within a display panel according to some embodiments;

[0066] Figure 21 is a planar structural diagram of the first support portion, the first through hole, the pixel opening, and the first electrode in the first color light-emitting device within a display panel according to some embodiments;

[0067] Figure 22 is a planar structural diagram of the first support portion, the first through hole, the pixel opening, and the first electrode in the first color light-emitting device within a display panel according to some embodiments;

[0068] Figure 23 is a planar structural diagram of the second support portion, the first through hole, the pixel opening, and the first electrode in the second color light-emitting device in a display panel according to some embodiments;

[0069] Figure 24 is a planar structural diagram of the second support portion, the first through hole, the pixel opening, and the first electrode in the second color light-emitting device within a display panel according to some embodiments.

[0070] Figure 25 is a planar structural diagram of the first through hole, pixel opening and first electrode in the light-emitting device in the display panel according to some embodiments;

[0071] Figure 26 is a planar structural diagram of the first through hole, pixel opening and first electrode in the light-emitting device in the display panel according to some embodiments;

[0072] Figure 27 is a partial plan view of a sub-display area of ​​a display panel according to some embodiments;

[0073] Figure 28 is a partial plan view of a sub-display area of ​​a display panel according to some embodiments;

[0074] Figure 29 is a partial plan view of a sub-display area of ​​a display panel according to some embodiments;

[0075] Figure 30 is a partial plan view of a sub-display area of ​​a display panel according to some embodiments;

[0076] Figure 31 is a planar structural diagram of the first through hole, pixel opening and first electrode in the light-emitting device in the display panel according to some embodiments;

[0077] Figure 32 is a partial film layer structure diagram of a sub-display area of ​​a display panel according to some embodiments;

[0078] Figure 33 is a flowchart of a method for manufacturing a display panel according to some embodiments;

[0079] Figure 34 is a structural diagram of a display panel corresponding to step S1 in the flowchart of the manufacturing method of the display panel in Figure 33;

[0080] Figure 35 is a structural diagram of a display panel corresponding to step S2 in the flowchart of the display panel fabrication method in Figure 33;

[0081] Figure 36 is a structural diagram of a display panel corresponding to step S3 in the flowchart of the manufacturing method of the display panel in Figure 33;

[0082] Figure 37 is a structural diagram of a display panel corresponding to step S4 in the flowchart of the display panel fabrication method in Figure 33;

[0083] Figure 38 is a partial film structure diagram of a sub-display area of ​​a display panel according to some embodiments. Detailed Implementation

[0084] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0085] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0086] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0087] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. The term "connected" should be interpreted broadly; for example, a "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection via an intermediate medium. The term "coupled," for example, indicates that two or more components have direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0088] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0089] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0090] As used herein, depending on the context, the term “if” may optionally be interpreted as meaning “when”, “in the event of”, “in response to determination”, or “in response to detection”. Similarly, depending on the context, the phrase “if determination…” or “if [the stated condition or event] is detected” may optionally be interpreted as meaning “in the event of determination…”, “in response to determination…”, “in the event of detection”, or “in response to the detection of [the stated condition or event]”.

[0091] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0092] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0093] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0094] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0095] It should be understood that when a layer or element is referred to as being on another layer or substrate, it can mean that the layer or element is directly on the other layer or substrate, or that there is an intermediate layer between the layer or element and the other layer or substrate.

[0096] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and the area of ​​regions are enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as being limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched areas shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the areas of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0097] It should be noted that, in the accompanying drawings of this disclosure, F / F1 / F2 / F3 / F4 indicates that a component can be F, or it can be F1, F2, or F3. For example, 41(F) indicates that component 41 belongs to component F. Other similar reference numerals appearing in the drawings also follow the above description.

[0098] As shown in FIG1, some embodiments of the present disclosure provide a display device 100.

[0099] Exemplarily, display device 100 can be any device that displays images, whether moving (e.g., video) or stationary (e.g., still images), and whether text or images. More specifically, the embodiments described are contemplated to 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, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays of camera views (e.g., displays of rearview 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. Figure 1 illustrates display device 100 as an example of a mobile phone.

[0100] For example, the display device 100 may be an electroluminescent display device or a photoluminescent display device. When the display device 100 is an electroluminescent display device, it may be an organic light-emitting diode (OLED) display device or a quantum dot light-emitting diode (QLED) display device. When the display device 100 is a photoluminescent display device, it may be a quantum dot photoluminescent display device.

[0101] The following uses an organic light-emitting diode (OLED) display device as an example to illustrate some embodiments of the present disclosure. However, the implementation of the present disclosure includes, but is not limited to, these embodiments. Any other display device can also be considered as long as the same technical concept is applied.

[0102] In some embodiments, as shown in FIG2, FIG2 is a cross-sectional view of a partial area of ​​a display device 100 according to some embodiments. The display device 100 includes a display panel 10 and optical components 20.

[0103] For example, the optical device 20 within the display device 100 may include a camera, enabling the display device 100 to perform various functions such as taking photos, recording videos, or facial recognition.

[0104] The optical components 20 within the display device 100 may also include sensors, etc. For example, the optical components 20 within the display device 100 may include a fingerprint recognition sensor, enabling the display device 100 to perform functions such as fingerprint recognition.

[0105] In some embodiments, the display device 100 may further include a circuit board (not shown). The circuit board is electrically connected to the display panel 10 and can be configured to drive the display panel 10 to display an image.

[0106] For example, the circuit boards in the display device 100 include, but are not limited to, printed circuit boards (PCBs) and flexible printed circuit boards (FPCs).

[0107] The display panel 10 described above will be described in detail below.

[0108] In some embodiments, as shown in Figures 3A and 3B, which are both planar structural diagrams of a display panel 10 according to some embodiments, the display panel 10 can be a rectangular structure.

[0109] It should be noted that the aforementioned "rectangular structure" refers to the fact that the overall shape of the boundary of the display panel 10 is rectangular, but it is not limited to a standard rectangle. That is, the "rectangle" here includes not only the shape of a standard rectangle, but also shapes similar to rectangles, taking into account manufacturing conditions. For example, as shown in Figures 3A and 3B, the long and short sides of the rectangle are curved at each intersection point (i.e., at the corner G), meaning that the corner G is smooth, making the boundary of the display panel 10 a rounded rectangle in the plan view.

[0110] In other embodiments, the display panel 10 may be a circular structure or other shapes with corners.

[0111] The following uses a rectangular structure for the display panel 10 as an example to illustrate some embodiments of the present disclosure. However, the implementation of the present disclosure includes, but is not limited to, this, and the shape of the display panel 10 can also be any other shape.

[0112] In some embodiments, referring to Figures 3A and 3B, the display panel 10 has a display area AA for displaying images and a peripheral area AN located on at least one side of the display area AA.

[0113] For example, the peripheral area AN of the display panel 10 may be located on one side of the display area AA of the display panel 10.

[0114] Alternatively, the peripheral area AN of the display panel 10 may be located on opposite sides of the display area AA of the display panel 10.

[0115] Alternatively, please continue to refer to Figures 3A and 3B, where the peripheral area AN of the display panel 10 can surround the display area AA of the display panel 10.

[0116] It should be noted that the specific arrangement of the peripheral area AN of the display panel 10 is related to the specific design of the display panel 10 and can be designed according to actual needs. This is only an example and is not intended to limit this disclosure.

[0117] For example, a gate driver on array (GOA) and control signal lines (e.g., clock signal lines, power supply voltage signal lines, etc.) may be disposed in the peripheral area AN of the display panel 10. However, the function of the peripheral area AN of the display panel 10 includes, but is not limited to, these.

[0118] For example, referring to Figures 3A and 3B, the display area AA of the display panel 10 may include a main display area A1 and a sub-display area A2. The main display area A1 surrounds at least a portion of the sub-display area A2.

[0119] For example, the main display area A1 of the display panel 10 may surround a portion of the secondary display area A2.

[0120] For example, please continue to refer to Figures 3A and 3B, the main display area A1 of the display panel 10 can surround the entire secondary display area A2.

[0121] For example, please continue to refer to FIG2, and in conjunction with FIG3A and FIG3B, when the display area AA of the display panel 10 includes a main display area A1 and a sub-display area A2, the light transmittance of the main display area A1 may be less than the light transmittance of the sub-display area A2.

[0122] For example, when the display area AA of the display panel 10 includes a main display area A1 and a sub-display area A2, both the main display area A1 and the sub-display area A2 can transmit light, and the light transmittance of the main display area A1 is relatively small, while the light transmittance of the sub-display area A2 is relatively large.

[0123] For example, in the case where the display area AA of the display panel 10 includes a main display area A1 and a sub-display area A2, the main display area A1 may be opaque, while the sub-display area A2 may be translucent. That is, the light transmittance of the main display area A1 may be 0.

[0124] The optical element 20 in the display device 100 can be located on the non-display side 10b of the display panel 10 and overlap with the sub-display area A2 in the third direction (i.e., the thickness direction of the display panel 10) Z.

[0125] It should be noted that the display side 10a of the display panel 10 refers to the side of the display panel 10 where the image can be displayed. The aforementioned "non-display side 10b of the display panel 10" refers to the side opposite to the display side 10a of the display panel 10.

[0126] On the one hand, since the light transmittance of the sub-display area A2 of the display panel 10 is relatively large, when the optical device 20 (e.g., a camera) in the display device 100 is located on the non-display side 10b of the display panel 10 and overlaps with the sub-display area A2 in the third direction (i.e., the thickness direction of the display panel 10) Z, more ambient light can pass through the sub-display area A2 of the display panel 10 and be received by the optical device 20 in the display device 100, so that the optical device 20 in the display device 100 can work normally.

[0127] On the other hand, by placing the optical device 20 (e.g., a camera) in the display device 100 on the non-display side 10b of the display panel 10, the placement hole in the display panel 10 for placing the optical device 20 in the display device 100 can be eliminated, which is beneficial for the display panel 10 to achieve a full screen.

[0128] It is understandable that when the optical device 20 in the display device 100 includes a camera, the camera is located on the non-display side 10b of the display panel 10 and overlaps with the sub-display area A2 in the third direction (i.e., the thickness direction of the display panel 10) Z, which can be called under-display camera (Full Display with Camera, FDC) technology.

[0129] In some embodiments, referring to Figures 3A and 3B, the display panel 10 includes a light-emitting device F of at least one color. The light-emitting device F of at least one color may be located in the display area AA of the display panel 10 (e.g., the main display area A1 and the sub-display area A2 within the display area AA), and the light-emitting device F is the smallest light-emitting unit within the display area AA of the display panel 10.

[0130] For example, the display panel 10 may include light-emitting devices F of one color. That is, multiple light-emitting devices F in the display area AA of the display panel 10 (e.g., the main display area A1 and the sub-display area A2 within the display area AA) can emit light of the same color.

[0131] When the display panel 10 includes a light-emitting device F of a single color, the display panel 10 may further include a color filter layer (not shown in the figure) disposed on the light-emitting side of the plurality of light-emitting devices F. For example, the light-emitting devices F in the display area AA of the display panel 10 may all emit light of the same color, such as white light, red light, green light or blue light. After the light emitted by the light-emitting device F passes through the color filter layer, it remains the same color light or is converted into other colors of light and emitted. Thus, when the plurality of light-emitting devices F in the display area AA of the display panel 10 emit light of the same color, the display panel 10 can achieve multi-color light emission.

[0132] Alternatively, as shown in Figure 4, which is a plan view of a partial area of ​​a display panel 10 according to some embodiments, the display panel 10 may include light-emitting devices F of multiple colors. That is, multiple light-emitting devices F within the display area AA of the display panel 10 can emit light of different colors.

[0133] For example, referring to Figure 4, the multi-color light-emitting devices F in the display area AA (e.g., the main display area A1 and the sub-display area A2 within the display area AA) of the display panel 10 may include a first-color light-emitting device F1 that emits a first-color light, a second-color light-emitting device F2 that emits a second-color light, and a third-color light-emitting device F3 that emits a third-color light, thereby realizing multi-color light emission of the display panel 10.

[0134] Among them, the first color light-emitting device F1 can be a green light-emitting device, emitting green light. The second color light-emitting device F2 can be a red light-emitting device, emitting red light. The third color light-emitting device F3 can be a blue light-emitting device, emitting blue light.

[0135] Alternatively, the first color light-emitting device F1 can also be a red light-emitting device or a blue light-emitting device. The second color light-emitting device F2 can also be a green light-emitting device or a blue light-emitting device. The third color light-emitting device F3 can also be a red light-emitting device or a green light-emitting device.

[0136] The following describes some embodiments of the present disclosure by taking the example that the display panel 10 includes multiple light-emitting devices F of various colors, that is, multiple light-emitting devices F in the display area AA of the display panel 10 emit light of different colors.

[0137] For example, please continue to refer to Figures 3A, 3B and 4, the light-emitting devices F of at least one color in the display panel 10 can be arranged in an array along the row direction X and the column direction Y.

[0138] For example, referring to Figures 3A, 3B and 4, at least one color light-emitting device F located in the main display area A1 of the display panel 10 can be arranged in an array along the row direction X and the column direction Y.

[0139] For example, please continue to refer to Figures 3A, 3B and 4. At least one color light-emitting device F located in the sub-display area A2 of the display panel 10 can be arranged in an array along the row direction X and the column direction Y.

[0140] In some examples, referring to Figure 4, when at least one color light-emitting device F is arranged in an array along the row direction X and the column direction Y in the main display area A1 of the display panel 10, and the light-emitting device F of at least one color in the main display area A1 of the display panel 10 includes a first color light-emitting device F1, a second color light-emitting device F2, and a third color light-emitting device F3, the second color light-emitting device F2 and the third color light-emitting device F3 can be arranged alternately in the same row along the row direction X and alternately in the same column along the column direction Y within the main display area A1 of the display panel 10. The first color light-emitting device F1 can be arranged sequentially in the same row along the row direction X and sequentially in the same column along the column direction Y. The rows containing the second color light-emitting device F2 and the third color light-emitting device F3 are arranged alternately with the rows containing the first color light-emitting device F1, and the columns containing the second color light-emitting device F2 and the third color light-emitting device F3 are arranged alternately with the columns containing the first color light-emitting device F1.

[0141] In some examples, referring to Figure 4, in the case where at least one color light-emitting device F is arranged in an array along the row direction X and the column direction Y in the sub-display area A2 of the display panel 10, and the light-emitting device F of at least one color in the sub-display area A2 of the display panel 10 includes a first color light-emitting device F1, a second color light-emitting device F2, and a third color light-emitting device F3, within the sub-display area A2 of the display panel 10, the second color light-emitting device F2 and the third color light-emitting device F3 can be arranged alternately in the same row along the row direction X and alternately in the same column along the column direction Y. The first color light-emitting device F1 can be arranged sequentially in the same row along the row direction X and sequentially in the same column along the column direction Y. The rows containing the second color light-emitting device F2 and the third color light-emitting device F3 are arranged alternately with the rows containing the first color light-emitting device F1, and the columns containing the second color light-emitting device F2 and the third color light-emitting device F3 are arranged alternately with the columns containing the first color light-emitting device F1.

[0142] In some embodiments, as shown in Figures 5 and 6, which are structural diagrams of a light-emitting device F within a display panel 10 according to some embodiments, the light-emitting device F within the display panel 10 includes a first electrode 41, a light-emitting portion 43, and a second electrode 42 arranged in sequence. The first electrode 41 and the second electrode 42 can provide charge carriers such as electrons and holes to the light-emitting portion 43, so that the light-emitting portion 43 emits light.

[0143] For example, please continue to refer to Figures 5 and 6. One of the first electrode 41 and the second electrode 42 can serve as the anode of the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2 and the third color light-emitting device F3), and the other can serve as the cathode of the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2 and the third color light-emitting device F3).

[0144] For example, please continue to refer to Figures 5 and 6. The first electrode 41 can serve as the anode of the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2, and the third color light-emitting device F3), and the second electrode 42 can serve as the cathode of the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2, and the third color light-emitting device F3).

[0145] When the first electrode 41 serves as the anode of the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2, and the third color light-emitting device F3), and the second electrode 42 serves as the cathode of the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2, and the third color light-emitting device F3), when a voltage is applied between the first electrode 41 and the second electrode 42, holes injected from the first electrode 41 can be transported to the light-emitting part 43 of the light-emitting device F, and electrons injected from the second electrode 42 can also be transported to the light-emitting part 43 of the light-emitting device F. Electrons and holes, as charge carriers, recombine in the light-emitting part 43 of the light-emitting device F to generate excitons. When the excitons transition from the excited state to the ground state, they emit light, thereby causing the light-emitting part 43 to emit light.

[0146] For example, the material used to form the first electrode 41 within the light-emitting device F may include a metallic material. For instance, the material used to form the first electrode 41 within the light-emitting device F may include any one or more of magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), titanium (Ti), and molybdenum (Mo).

[0147] The material used to form the first electrode 41 within the light-emitting device F may also include an alloy of the aforementioned metallic materials. For example, the material used to form the first electrode 41 within the light-emitting device F may include aluminum-neodymium alloy (AlNd) or molybdenum-niobium alloy (MoNb), etc.

[0148] For example, the first electrode 41 in the light-emitting device F can be a single-layer structure.

[0149] Alternatively, the first electrode 41 within the light-emitting device F can also be a multilayer composite structure. For example, the first electrode 41 within the light-emitting device F can be a Ti / Al / Ti structure, etc. Another example is that the first electrode 41 within the light-emitting device F can be a stacked structure formed of metallic materials and transparent conductive materials, such as ITO / Ag / ITO, Mo / AlNd / ITO, etc.

[0150] For example, the material used to form the second electrode 42 within the light-emitting device F may include any one or more of magnesium (Mg), silver (Ag), aluminum (Al), etc.

[0151] The material used to form the second electrode 42 within the light-emitting device F may also include any one or more alloys made of magnesium (Mg), silver (Ag), aluminum (Al), etc.

[0152] The material used to form the second electrode 42 within the light-emitting device F may also include a transparent conductive material. For example, the material used to form the second electrode 42 within the light-emitting device F may include indium zinc oxide (IZO), etc.

[0153] For example, please continue to refer to Figures 5 and 6. The light-emitting part 43 in the light-emitting device F may include a light-emitting layer 43a.

[0154] For example, referring to Figure 5, the display panel 10 can be an organic light-emitting diode (OLED) display panel. In the case of an organic light-emitting diode (OLED) display panel, the light-emitting layer 43a within the light-emitting portion 43 of the light-emitting device F can include an organic light-emitting layer (EML). The organic light-emitting layer (EML) can include a host material and a guest material, and the guest material can be a fluorescent dopant or a phosphorescent dopant.

[0155] For example, referring to Figure 6, the display panel 10 can be a quantum dot light-emitting diode (QLED) display panel. In the case of a quantum dot light-emitting diode (QLED) display panel, the light-emitting layer 43a within the light-emitting portion 43 of the light-emitting device F can include a quantum dot layer (QDL). The quantum dot layer (QDL) can have quantum dot particles, which can be interconnected through surface-modified groups.

[0156] For example, please continue to refer to Figures 5 and 6. The light-emitting part 43 in the light-emitting device F may also include one or more of the following: a hole injection layer (HIL), a hole transport layer (HTL), an electron block layer (EBL), a hole block layer (HBL), an electron transport layer (ETL), and an electron injection layer (EIL).

[0157] In some embodiments, referring to Figures 3A and 3B, the display panel 10 further includes a plurality of pixel circuits S. The pixel circuits S can be electrically connected to the light-emitting devices F within the display panel 10, and are used to drive the light-emitting devices F within the display panel 10 to emit light.

[0158] For example, referring to Figures 3A and 3B, the plurality of pixel circuits S within the display panel 10 may include a first pixel circuit S1. The first pixel circuit S1 may be located in the main display area A1 of the display panel 10, and the light-emitting device F located in the main display area A1 of the display panel 10 is electrically connected to the corresponding first pixel circuit S1. The light-emitting device F located in the main display area A1 of the display panel 10 overlaps with the corresponding first pixel circuit S1 in the third direction (i.e., the thickness direction Z of the display panel 10).

[0159] For example, referring to FIG3A, the plurality of pixel circuits S within the display panel 10 may further include a second pixel circuit S2. The second pixel circuit S2 may be located in the main display area A1 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2 (for example, the light-emitting device F located in the sub-display area A2 of the display panel 10 may be electrically connected to the corresponding second pixel circuit S2 via conductive line 212). The light-emitting device F located in the sub-display area A2 of the display panel 10 and the corresponding second pixel circuit S2 do not overlap in the third direction (i.e., the thickness direction Z of the display panel 10).

[0160] By placing the second pixel circuit S2, which is connected to the light-emitting device F located in the sub-display area A2 of the display panel 10, in the main display area A1 of the display panel 10, the second pixel circuit S2 can avoid occupying the space of the sub-display area A2 of the display panel 10. This reduces the obstruction of ambient light passing through the sub-display area A2 of the display panel 10 and helps to improve the light transmittance of the sub-display area A2 of the display panel 10.

[0161] Alternatively, referring to Figure 3B, the second pixel circuit S2 can be located in the sub-display area A2 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2. The light-emitting device F located in the sub-display area A2 of the display panel 10 overlaps with the corresponding second pixel circuit S2 in the third direction (i.e., the thickness direction of the display panel 10) Z.

[0162] By setting the second pixel circuit S2, which is connected to the light-emitting device F located in the sub-display area A2 of the display panel 10, in the sub-display area A2 of the display panel 10, the second pixel circuit S2 can avoid occupying the space of the main display area A1 of the display panel 10. As a result, more light-emitting devices F can be set in the main display area A1 of the display panel 10, which is beneficial to improving the pixel density (Pixels Per Inch, PPI) in the main display area A1 of the display panel 10.

[0163] For example, referring to Figures 3A and 3B, the multiple pixel circuits S and multiple light-emitting devices F within the display panel 10 can have a one-to-one driving relationship.

[0164] For example, referring to Figures 3A and 3B, a light-emitting device F located in the main display area A1 of the display panel 10 can be electrically connected to a corresponding first pixel circuit S1.

[0165] For example, referring to Figures 3A and 3B, a light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to a corresponding second pixel circuit S2.

[0166] Alternatively, as shown in FIG3C, FIG3C is a plan view of a partial area of ​​a display panel 10 according to some embodiments. The plurality of pixel circuits S and the plurality of light-emitting devices F within the display panel 10 can have a one-to-many driving relationship. That is, one pixel circuit S within the display panel 10 can be electrically connected to multiple light-emitting devices F and configured to drive the multiple light-emitting devices F to emit light.

[0167] For example, referring to Figure 3C, the two light-emitting devices F located in the sub-display area A2 of the display panel 10 can be electrically connected to a corresponding second pixel circuit S2. Specifically, referring to Figure 3C, when the display panel 10 includes light-emitting devices F of multiple colors, that is, when multiple light-emitting devices F in the display panel 10 emit light of different colors, two adjacent light-emitting devices F (e.g., first-color light-emitting devices F1) located in the sub-display area A2 of the display panel 10 that emit light of the same color can be electrically connected to a corresponding second pixel circuit S2. In other words, two adjacent light-emitting devices F (e.g., first-color light-emitting devices F1) located in the sub-display area A2 of the display panel 10 that emit light of the same color can be driven to emit light by the same second pixel circuit S2.

[0168] The light-emitting devices F (e.g., first color light-emitting device F1, second color light-emitting device F2 and third color light-emitting device F3) and pixel circuits S (e.g., first pixel circuit S1 and second pixel circuit S2) in the display panel 10 can be disposed within the film layer structure of the display panel 10. The film layer structure of the display panel 10 will be described in detail below.

[0169] In some embodiments, as shown in Figures 7, 8, 9A, and 9B, Figure 7 is a cross-sectional view of the display panel 10 shown in Figure 3A along section line mm, Figure 8 is a cross-sectional view of the display panel 10 shown in Figure 3A along section line nn, Figure 9A is a cross-sectional view of the display panel 10 shown in Figure 3B along section line oo, and Figure 9B is a cross-sectional view of the display panel 10 shown in Figure 3B along section line pp. The display panel 10 may include a substrate 1.

[0170] For example, the material of the substrate 1 within the display panel 10 may include inorganic materials. For instance, the material of the substrate 1 within the display panel 10 may include glass materials such as soda-lime glass, quartz glass, and sapphire glass.

[0171] Alternatively, the material of the substrate 1 within the display panel 10 may also include organic materials. For example, the material of the substrate 1 within the display panel 10 may include one or more of polymethyl methacrylate, polyvinyl alcohol, polyvinylphenol, polyethersulfone, polyimide, polyamide, polyacetal, polycarbonate, polyethylene terephthalate, and polyethylene naphthalate.

[0172] Alternatively, the substrate 1 within the display panel 10 may also include both organic and inorganic materials.

[0173] In some embodiments, referring to Figures 7, 9A, and 9B, the display panel 10 may further include a driving layer 3. The driving layer 3 is located on one side of the substrate 1 within the display panel 10. Pixel circuits S (e.g., first pixel circuit S1 and second pixel circuit S2) within the display panel 10 may be disposed within the driving layer 3.

[0174] For example, please continue to refer to FIG7 and in conjunction with FIG3A, when the first pixel circuit S1 and the second pixel circuit S2 in the display panel 10 are both located in the main display area A1 of the display panel 10, the first pixel circuit S1 and the second pixel circuit S2 can both be disposed in the driving layer 3 in the main display area A1 of the display panel 10.

[0175] Alternatively, please refer to Figures 9A and 9B. When the first pixel circuit S1 in the display panel 10 is located in the main display area A1 of the display panel 10, and the second pixel circuit S2 in the display panel 10 is located in the sub-display area A2 of the display panel 10, the first pixel circuit S1 can be disposed in the driving layer 3 in the main display area A1 of the display panel 10, and the second pixel circuit S2 can be disposed in the driving layer 3 in the sub-display area A2 of the display panel 10.

[0176] For example, as shown in FIG10, FIG10 is a cross-sectional view of a partial region of the driving layer 3 in a display panel 10 according to some embodiments. The driving layer 3 in the display panel 10 may include a semiconductor layer, a first gate metal layer, a second gate metal layer, and a source / drain metal layer sequentially stacked along a direction away from the substrate 1 in the display panel 10. A first gate insulating layer 301 may be disposed between the semiconductor layer and the first gate metal layer, a second gate insulating layer 302 may be disposed between the first gate metal layer and the second gate metal layer, an interlayer insulating layer 303 may be disposed between the second gate metal layer and the source / drain metal layer, and a passivation layer 304 may be disposed on the side of the source / drain metal layer away from the substrate 1. The first gate insulating layer 301, the second gate insulating layer 302, the interlayer insulating layer 303, and the passivation layer 304 may be inorganic insulating layers.

[0177] Please continue to refer to Figure 10. The pixel circuit S (e.g., the first pixel circuit S1 and the second pixel circuit S2) in the display panel 10 may include a thin film transistor T and a capacitor C.

[0178] The semiconductor layer within the driving layer 3 may include at least the active layer T1 of the thin-film transistor T. The first gate metal layer within the driving layer 3 may include at least the gate T2 of the thin-film transistor T and the first electrode C1 of the capacitor C. The orthogonal projection of the gate T2 of the thin-film transistor T onto the substrate 1 may cover the orthogonal projection of the channel region of the active layer T1 onto the substrate 1. The second gate metal layer may include at least the second electrode C2 of the capacitor C. The orthogonal projections of the second electrode C2 and the first electrode C1 of the capacitor C onto the substrate 1 may at least partially overlap; for example, they may coincide. The source / drain metal layer may include at least the source S and drain D of the thin-film transistor T. The material of the active layer T1 of the thin-film transistor T may include polysilicon and / or metal oxides, etc., and the material of the gate T2 of the thin-film transistor T may include metals or alloys such as aluminum, titanium, and cobalt.

[0179] Please continue to refer to Figure 10. In the driving layer 3 of the display panel 10, a via K can be provided on the side of the drain D of the thin film transistor T in the pixel circuit S (e.g., the first pixel circuit S1 and the second pixel circuit S2) away from the substrate 1. The light-emitting device F in Figures 7, 8, 9A and 9B can be electrically connected to the corresponding pixel circuit S (e.g., the first pixel circuit S1 and the second pixel circuit S2) in the driving layer 3 through the via K, so that the pixel circuit S (e.g., the first pixel circuit S1 and the second pixel circuit S2) can drive the light-emitting device F to emit light.

[0180] In some embodiments, referring to Figures 7, 8, 9A, and 9B, the display panel 10 may further include a first conductive layer 21. The first conductive layer 21 is located on one side of the substrate 1 within the display panel 10.

[0181] For example, please continue to refer to FIG7. When the first pixel circuit S1 and the second pixel circuit S2 in the display panel 10 are both located in the main display area A1 of the display panel 10, that is, when the driving layer 3 is provided in the main display area A1 of the display panel 10, the first conductive layer 21 can be located on the side of the driving layer 3 away from the substrate 1 in the main display area A1 of the display panel 10.

[0182] Alternatively, please refer to Figures 9A and 9B. When the first pixel circuit S1 in the display panel 10 is located in the main display area A1 of the display panel 10 and the second pixel circuit S2 in the display panel 10 is located in the sub-display area A2 of the display panel 10, that is, when the driving layer 3 is provided in both the main display area A1 and the sub-display area A2 of the display panel 10, the first conductive layer 21 can be located on the side of the driving layer 3 away from the substrate 1 in both the main display area A1 and the sub-display area A2 of the display panel 10.

[0183] For example, the material of the first conductive layer 21 within the display panel 10 may include a transparent conductive material. For instance, the material of the first conductive layer 21 within the display panel 10 may include indium tin oxide (ITO) or the like.

[0184] By making the material of the first conductive layer 21 in the display panel 10 include a transparent conductive material, the first conductive layer 21 located in the sub-display area A2 of the display panel 10 can be prevented from blocking the ambient light passing through the sub-display area A2 of the display panel 10, thereby allowing more ambient light to pass through the sub-display area A2 of the display panel 10, which is beneficial to improving the light transmittance of the sub-display area A2 of the display panel 10.

[0185] For example, referring to Figures 7 and 9A, the first conductive layer 21 within the display panel 10 may include a conductive portion 211. The light-emitting device F located in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 within the display panel 10 through the conductive portion 211 in the first conductive layer 21.

[0186] For example, referring to FIG8 and in conjunction with FIG7, when the second pixel circuit S2 in the display panel 10 is located in the main display area A1 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the first conductive layer 21 in the display panel 10 may include conductive lines 212. The light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 in the display panel 10 through the conductive lines 212 in the first conductive layer 21.

[0187] Alternatively, referring to Figure 9B, if the second pixel circuit S2 within the display panel 10 is located in the sub-display area A2 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the first conductive layer 21 within the display panel 10 may include a conductive portion 211. The light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 within the display panel 10 through the conductive portion 211 in the first conductive layer 21.

[0188] In some embodiments, referring to Figures 7, 8, 9A, and 9B, the display panel 10 may further include a second conductive layer 22 and a second planarization layer 52. The second conductive layer 22 may be located on the side of the first conductive layer 21 within the display panel 10 near the substrate 1, and the second planarization layer 52 may be located between the second conductive layer 22 and the first conductive layer 21 within the display panel 10.

[0189] Please continue referring to Figures 7 and 9A. The second conductive layer 22 within the display panel 10 may include a conductive portion 211. When the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, the light-emitting device F located in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 within the display panel 10 through the conductive portion 211 in the first conductive layer 21 and / or the conductive portion 211 in the second conductive layer 22.

[0190] For example, when the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, the light-emitting device F located in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21.

[0191] Alternatively, if the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, the light-emitting device F located in the main display area A1 of the display panel 10 can also be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21 and the conductive part 211 in the second conductive layer 22.

[0192] For example, when the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, some of the light-emitting devices F located in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21, and some of the light-emitting devices F can be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21 and the conductive part 211 in the second conductive layer 22.

[0193] Please refer to Figure 8 and, in conjunction with Figure 7, when the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, and the second pixel circuit S2 within the display panel 10 is located in the main display area A1 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the second conductive layer 22 within the display panel 10 may include conductive lines 212. The light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 within the display panel 10 through the conductive lines 212 in the first conductive layer 21 and / or the conductive lines 212 in the second conductive layer 22.

[0194] For example, when the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, and the second pixel circuit S2 in the display panel 10 is located in the main display area A1 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 in the display panel 10 through the conductive line 212 in the first conductive layer 21.

[0195] Alternatively, if the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, and the second pixel circuit S2 in the display panel 10 is located in the main display area A1 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the light-emitting device F located in the sub-display area A2 of the display panel 10 can also be electrically connected to the second pixel circuit S2 in the display panel 10 through the conductive lines 212 in the first conductive layer 21 and the conductive lines 212 in the second conductive layer 22.

[0196] For example, in a display panel 10 including a first conductive layer 21 and a second conductive layer 22, where the second pixel circuit S2 within the display panel 10 is located in the main display area A1 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, a portion of the light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 within the display panel 10 through conductive lines 212 in the first conductive layer 21, and a portion of the light-emitting device F can be electrically connected to the second pixel circuit S2 within the display panel 10 through conductive lines 212 in the first conductive layer 21 and conductive lines 212 in the second conductive layer 22. Referring further to FIG9B, in a display panel 10 including a first conductive layer 21 and a second conductive layer 22, where the second pixel circuit S2 within the display panel 10 is located in the sub-display area A2 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the second conductive layer 22 within the display panel 10 may include a conductive portion 211. The light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 in the display panel 10 through the conductive part 211 in the first conductive layer 21 and / or the conductive part 211 in the second conductive layer 22.

[0197] For example, when the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, the second pixel circuit S2 in the display panel 10 is located in the sub-display area A2 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 in the display panel 10 through the conductive part 211 in the first conductive layer 21.

[0198] Alternatively, if the display panel 10 includes a first conductive layer 21 and a second conductive layer 22, the second pixel circuit S2 in the display panel 10 is located in the sub-display area A2 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 in the display panel 10 through the conductive part 211 in the first conductive layer 21 and the conductive part 211 in the second conductive layer 22.

[0199] For example, in a display panel 10 including a first conductive layer 21 and a second conductive layer 22, where the second pixel circuit S2 within the display panel 10 is located in the sub-display area A2 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, a portion of the light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 within the display panel 10 through the conductive portion 211 in the first conductive layer 21. Similarly, a portion of the light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 within the display panel 10 through the conductive portion 211 in the first conductive layer 21 and the conductive portion 211 in the second conductive layer 22.

[0200] For example, the material of the second conductive layer 22 within the display panel 10 may include a transparent conductive material. For instance, the material of the second conductive layer 22 within the display panel 10 may include indium tin oxide (ITO) or the like.

[0201] By making the material of the second conductive layer 22 in the display panel 10 include a transparent conductive material, the second conductive layer 22 located in the sub-display area A2 of the display panel 10 can be prevented from blocking the ambient light passing through the sub-display area A2 of the display panel 10, thereby allowing more ambient light to pass through the sub-display area A2 of the display panel 10, which is beneficial to improving the light transmittance of the sub-display area A2 of the display panel 10.

[0202] It should be noted that, please continue to refer to Figures 7, 8, 9A and 9B, and in conjunction with Figure 10, when the light-emitting device F in the display panel 10 (e.g., the light-emitting device F located in the main display area A1 of the display panel 10 or the light-emitting device F located in the sub-display area A2 of the display panel 10) is electrically connected to the corresponding pixel circuit S (e.g., the first pixel circuit S1 and the second pixel circuit S2) in the driving layer 3 through the conductive part 211 or the conductive line 212, the conductive part 211 or the conductive line 212 can be electrically connected to the corresponding pixel circuit S (e.g., the first pixel circuit S1 and the second pixel circuit S2) in the driving layer 3 through the via K in the driving layer 3.

[0203] In some embodiments, referring to Figures 7, 8, 9A, and 9B, the display panel 10 may further include a third conductive layer 23, a third planarization layer 53, and a fourth planarization layer 54. The third conductive layer 23 may be located on the side of the second conductive layer 22 within the display panel 10 closest to the substrate 1. The third planarization layer 53 may be located between the third conductive layer 23 and the second conductive layer 22 within the display panel 10. The fourth planarization layer 54 may be located on the side of the third conductive layer 23 within the display panel 10 closest to the substrate 1.

[0204] Please continue referring to Figures 7 and 9A. The third conductive layer 23 within the display panel 10 may include a conductive portion 211. When the display panel 10 includes a first conductive layer 21, a second conductive layer 22, and a third conductive layer 23, the light-emitting device F located in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 within the display panel 10 through the conductive portion 211 in the first conductive layer 21 and / or the conductive portion 211 in the second conductive layer 22 and / or the conductive portion 211 in the third conductive layer 23.

[0205] For example, when the display panel 10 includes a first conductive layer 21, a second conductive layer 22 and a third conductive layer 23, the light-emitting device F located in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21.

[0206] Alternatively, if the display panel 10 includes a first conductive layer 21, a second conductive layer 22 and a third conductive layer 23, the light-emitting device F located in the main display area A1 of the display panel 10 can also be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21 and the conductive part 211 in the second conductive layer 22.

[0207] Alternatively, if the display panel 10 includes a first conductive layer 21, a second conductive layer 22, and a third conductive layer 23, the light-emitting device F located in the main display area A1 of the display panel 10 can also be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21, the conductive part 211 in the second conductive layer 22, and the conductive part 211 in the third conductive layer 23.

[0208] For example, when the display panel 10 includes a first conductive layer 21, a second conductive layer 22, and a third conductive layer 23, some light-emitting devices F located in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21, some light-emitting devices F can be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21 and the conductive part 211 in the second conductive layer 22, and some light-emitting devices F can be electrically connected to the first pixel circuit S1 in the display panel 10 through the conductive part 211 in the first conductive layer 21, the conductive part 211 in the second conductive layer 22, and the conductive part 211 in the third conductive layer 23.

[0209] Please refer to Figure 8 and, in conjunction with Figure 7, when the display panel 10 includes a first conductive layer 21, a second conductive layer 22, and a third conductive layer 23, and the second pixel circuit S2 within the display panel 10 is located in the main display area A1 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the third conductive layer 23 within the display panel 10 may include conductive lines 212. The light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 within the display panel 10 through the conductive lines 212 in the first conductive layer 21 and / or the conductive lines 212 in the second conductive layer 22 and / or the conductive lines 212 in the third conductive layer 23.

[0210] Alternatively, referring to Figure 9B, in a display panel 10 comprising a first conductive layer 21, a second conductive layer 22, and a third conductive layer 23, where the second pixel circuit S2 within the display panel 10 is located in the sub-display area A2 of the display panel 10, and the light-emitting device F located in the sub-display area A2 of the display panel 10 is electrically connected to the corresponding second pixel circuit S2, the third conductive layer 23 within the display panel 10 may include a conductive portion 211. The light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 within the display panel 10 through the conductive portion 211 in the first conductive layer 21 and / or the conductive portion 211 in the second conductive layer 22 and / or the conductive portion 211 in the third conductive layer 23.

[0211] For example, the material of the third conductive layer 23 within the display panel 10 may include a transparent conductive material. For instance, the material of the third conductive layer 23 within the display panel 10 may include indium tin oxide (ITO) or the like.

[0212] By making the material of the third conductive layer 23 in the display panel 10 include a transparent conductive material, the third conductive layer 23 located in the sub-display area A2 of the display panel 10 can be prevented from blocking the ambient light passing through the sub-display area A2 of the display panel 10, thereby allowing more ambient light to pass through the sub-display area A2 of the display panel 10, which is beneficial to improving the light transmittance of the sub-display area A2 of the display panel 10.

[0213] In some embodiments, referring to Figures 7, 8, 9A, and 9B, the display panel 10 may further include a first planarization layer 51. The first planarization layer 51 may be located on the side of the first conductive layer 21 away from the substrate 1. The first planarization layer 51 is provided with a first via 511.

[0214] The first planarization layer 51 within the display panel 10 has a planarization function, which is beneficial to improving the deposition quality of subsequent materials and reducing surface differences in other films formed subsequently.

[0215] For example, as shown in FIG11, FIG11 is a cross-sectional view of a partial region of a first planarization layer 51 in a display panel 10 according to some embodiments. A first via 511 in the first planarization layer 51 has a first opening 511a located on a side surface 51a of the first planarization layer 51 away from the substrate 1, and a second opening 511b located on a side surface 51b of the first planarization layer 51 closer to the substrate 1. The area of ​​the first opening 511a of the first via 511 is larger than the area of ​​the second opening 511b.

[0216] Since the area of ​​the first opening 511a of the first through hole 511 in the first planarization layer 51 is larger than the area of ​​the second opening 511b, the first through hole 511 in the first planarization layer 51 is a tapered hole.

[0217] Please refer to Figure 11. When the first through hole 511 in the first planarization layer 51 is a tapered hole, the sidewall 511c of the first through hole 511 in the first planarization layer 51 is set as an inclined surface.

[0218] For example, the material of the first planarization layer 51 within the display panel 10 may include silicon dioxide (SiO2), silicon nitride (Si3N4), aluminum oxide (Al2O3), and organosilicon compounds, etc.

[0219] In some embodiments, referring further to Figures 7, 8, 9A, and 9B, the display panel 10 may also include a first electrode layer 4. The first electrode layer 4 is located on the side of the first planarization layer 51 within the display panel 10 away from the substrate 1. The first electrode layer 4 includes a first electrode 41 within the light-emitting device F.

[0220] Please continue to refer to Figures 7 and 9A. The first electrode 41 located in the main display area A1 of the display panel 10 passes through the first through hole 511 in the first planarization layer 51 and is electrically connected to the first conductive layer 21, so that the light-emitting device F located in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 in the display panel 10 through the first conductive layer 21.

[0221] Please refer to Figures 8 and 9B. The first electrode 41 located in the sub-display area A2 of the display panel 10 passes through the first through hole 511 in the first planarization layer 51 and is electrically connected to the first conductive layer 21, so that the light-emitting device F located in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 in the display panel 10 through the first conductive layer 21.

[0222] For example, as shown in FIG12, FIG12 is a planar structural diagram of a first via 511 in a first planarization layer 51, a pixel opening 61 in a pixel definition layer 6, and a first electrode 41 in a light-emitting device F according to some embodiments. The first electrode 41 in the light-emitting device F (e.g., a first color light-emitting device F1, a second color light-emitting device F2, and a third color light-emitting device F3) may include a main body portion 411 and a connecting portion 412, the connecting portion 412 being electrically connected to the main body portion 411.

[0223] Please continue to refer to Figures 7 and 9A, and in conjunction with Figure 12, when the first electrode 41 in the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2, and the third color light-emitting device F3) includes a main body portion 411 and a connecting portion 412, the above-mentioned "the first electrode 41 located in the main display area A1 of the display panel 10 is electrically connected through the first through hole 511 in the first planarization layer 51 and the first conductive layer 21" can specifically be that the connecting portion 412 located in the first electrode 41 in the main display area A1 of the display panel 10 is electrically connected through the first through hole 511 in the first planarization layer 51 and the first conductive layer 21.

[0224] Please continue to refer to Figures 8 and 9B, and in conjunction with Figure 12, when the first electrode 41 in the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2, and the third color light-emitting device F3) includes a main body portion 411 and a connecting portion 412, the above-mentioned "the first electrode 41 located in the sub-display area A2 of the display panel 10 is electrically connected through the first through hole 511 in the first planarization layer 51 and the first conductive layer 21" can specifically be that the connecting portion 412 located in the first electrode 41 in the sub-display area A2 of the display panel 10 is electrically connected through the first through hole 511 in the first planarization layer 51 and the first conductive layer 21.

[0225] In some embodiments, referring further to Figures 7, 8, 9A, and 9B, the display panel 10 may also include a pixel definition layer 6. The pixel definition layer 6 is located on the side of the first electrode layer 4 within the display panel 10 away from the substrate 1. The pixel definition layer 6 has pixel openings 61.

[0226] Please continue to refer to Figures 7, 8, 9A and 9B, and in conjunction with Figure 12, when the first electrode 41 in the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2 and the third color light-emitting device F3) includes a main body portion 411 and a connecting portion 412, the main body portion 411 in the first electrode 41 and the pixel opening 61 in the pixel definition layer 6 overlap in the third direction (i.e., the thickness direction of the display panel 10) Z.

[0227] By making the main body portion 411 in the first electrode 41 and the pixel opening 61 in the pixel definition layer 6 overlap in the third direction (i.e., the thickness direction of the display panel 10) Z, the pixel opening 61 in the pixel definition layer 6 can expose at least a portion of the main body portion 411 in the first electrode 41. This allows the pixel definition layer 6 to effectively define the actual effective area of ​​the first electrode 41 (i.e., the overlapping area of ​​the main body portion 411 in the first electrode 41 and the pixel opening 61 in the pixel definition layer 6 in the third direction Z). As a result, the pixel definition layer 6 can define the light-emitting area and light-emitting area of ​​the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2, and the third color light-emitting device F3).

[0228] For example, referring to FIG12, in the orthographic projection onto the substrate 1 within the display panel 10, the boundary of the main body portion 411 within the first electrode 41 of the light-emitting device F may be located outside the boundary of the pixel opening 61 within the pixel definition layer 6. That is, in the orthographic projection onto the substrate 1 within the display panel 10, the pixel opening 61 within the pixel definition layer 6 may be located within the boundary range of the main body portion 411 within the first electrode 41.

[0229] For example, the material of the pixel definition layer 6 within the display panel 10 may include an organic insulating material. For instance, the material of the pixel definition layer 6 within the display panel 10 may include polyimide, acrylic, or polyethylene terephthalate, etc.

[0230] For example, as shown in FIG13, and in conjunction with FIG7, FIG8, FIG9A, FIG9B and FIG11, FIG13 is a cross-sectional view of a partial region of the first planarization layer 51, the pixel definition layer 6 and the first electrode 41 in the light-emitting device F in the display panel 10 according to some embodiments. In the main display area A1 of the display panel 10, the first electrode 41 passes through the first through hole 511 in the first planarization layer 51 and is electrically connected to the first conductive layer 21, so that the light-emitting device F in the main display area A1 of the display panel 10 can be electrically connected to the first pixel circuit S1 in the display panel 10 through the first conductive layer 21. In the sub-display area A2 of the display panel 10, the first electrode 41 passes through the first through hole 511 in the first planarization layer 51 and is electrically connected to the first conductive layer 21, so that the light-emitting device F in the sub-display area A2 of the display panel 10 can be electrically connected to the second pixel circuit S2 in the display panel 10 through the first conductive layer 21. When the first through hole 511 in the first planarization layer 51 is a tapered hole and the side wall 511c of the first through hole 511 is set with an inclined surface, the part of the first electrode 41 in the light-emitting device F that covers the side wall 511c of the first through hole 511 in the first planarization layer 51 (hereinafter referred to as the first part 41a of the first electrode 41 for ease of description) is also set with an inclined surface.

[0231] In the main body portion 411 of the first electrode 41 of the light-emitting device F, the portion that overlaps with the pixel opening 61 in the pixel definition layer 6 in the third direction (i.e., the thickness direction of the display panel 10) Z (hereinafter referred to as the effective light-emitting portion 41b of the first electrode 41 for ease of description) has an overlapping region 41c with the first portion 41a of the first electrode 41. That is, there is a portion in the first electrode 41 of the light-emitting device F that belongs to both the first portion 41a and the effective light-emitting portion 41b of the first electrode 41.

[0232] For example, please continue to refer to 12. A straight line passing through the center of the first through hole 511 in the first planarization layer 51 and along the preset direction N is the reference line C. The preset direction N is the direction in which the main body portion 411 and the connecting portion 412 of the first electrode 41 in the light-emitting device F are connected.

[0233] In the orthographic projection onto the substrate 1 within the display panel 10, the intersection points of the boundary of the first via 511 within the first planarization layer 51 (i.e., the boundary of the second opening 511b of the first via 511) with the reference line C are the first intersection point J1 and the second intersection point J2, respectively. The first intersection point J1 is farther away from the pixel opening 61 within the pixel definition layer 6 compared to the second intersection point J2. The intersection points of the boundary of the pixel opening 61 within the pixel definition layer 6 with the reference line C are the third intersection point J3 and the fourth intersection point J4, respectively. The third intersection point J3 is closer to the first via 511 within the first planarization layer 51 compared to the fourth intersection point J4. The distance between the second intersection point J2 and the third intersection point J3 is a first length L1, and the distance between the third intersection point J3 and the fourth intersection point J4 is a second length L2.

[0234] It is understood that the first length L1 corresponding to the light-emitting device F in the above-mentioned display panel 10 is the minimum distance on the reference line C between the boundary of the first through hole 511 corresponding to the light-emitting device F in the display panel 10 (i.e. the boundary of the second opening 511b of the first through hole 511) and the boundary of the pixel opening 61 in the pixel definition layer 6 corresponding to the same light-emitting device F, in the orthogonal projection onto the substrate 1 in the display panel 10.

[0235] The second length L2 corresponding to the light-emitting device F in the display panel 10 is the length of the pixel opening 61 in the pixel definition layer 6 corresponding to the light-emitting device F in the display panel 10 on the reference line C in the orthographic projection onto the substrate 1 in the display panel 10.

[0236] For example, referring to Figures 4 and 12, when multiple light-emitting devices F within the display area AA of the display panel 10 emit light of different colors, the second length L2 corresponding to the first-color light-emitting device F1 within the display panel 10 is less than the second length L2 corresponding to other color light-emitting devices F within the display panel 10 (e.g., the second-color light-emitting device F2 and the third-color light-emitting device F3). That is, among the multiple light-emitting devices F within the display area AA of the display panel 10, the second length L2 corresponding to the first-color light-emitting device F1 is the smallest.

[0237] For example, if the multiple light-emitting devices F in the main display area A1 of the display panel 10 include a first color light-emitting device F1, a second color light-emitting device F2, and a third color light-emitting device F3, the second length L2 corresponding to the first color light-emitting device F1 in the main display area A1 of the display panel 10 is less than the second length L2 corresponding to the second color light-emitting device F2 in the main display area A1 of the display panel 10, and the second length L2 corresponding to the second color light-emitting device F2 in the main display area A1 of the display panel 10 is less than the second length L2 corresponding to the third color light-emitting device F3 in the main display area A1 of the display panel 10.

[0238] For example, if the plurality of light-emitting devices F in the sub-display area A2 of the display panel 10 include a first-color light-emitting device F1, a second-color light-emitting device F2, and a third-color light-emitting device F3, the second length L2 corresponding to the first-color light-emitting device F1 in the sub-display area A2 of the display panel 10 is less than the second length L2 corresponding to the second-color light-emitting device F2 in the sub-display area A2 of the display panel 10, and the second length L2 corresponding to the second-color light-emitting device F2 in the sub-display area A2 of the display panel 10 is less than the second length L2 corresponding to the third-color light-emitting device F3 in the sub-display area A2 of the display panel 10.

[0239] In some embodiments, please continue to refer to Figures 7, 8, 9A and 9B, the light-emitting part 43 in the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2 and the third color light-emitting device F3) can be located in the pixel opening 61 in the pixel definition layer 6 and electrically connected to the first electrode 41 in the first electrode layer 4.

[0240] For example, please continue to refer to Figures 7, 8, 9A and 9B. When the first electrode 41 in the first electrode layer 4 includes a main body portion 411 and a connecting portion 412, the light-emitting portion 43 in the light-emitting device F can be electrically connected to the main body portion 411 in the first electrode 41.

[0241] In some embodiments, please continue to refer to Figures 7, 8, 9A and 9B, the second electrode 42 in the light-emitting device F (e.g., the first color light-emitting device F1, the second color light-emitting device F2 and the third color light-emitting device F3) may be located on the side of the pixel definition layer 6 in the display panel 10 away from the substrate 1.

[0242] In some embodiments, referring to Figures 7, 8, 9A, and 9B, the display panel 10 may further include an encapsulation structure 7. The encapsulation structure 7 is located on the side of the second electrode 42 within the light-emitting device F that is away from the substrate 1. The encapsulation structure 7 is used to encapsulate the light-emitting device F, protecting it from corrosion caused by external water and oxygen.

[0243] For example, the encapsulation structure 7 within the display panel 10 may include an inorganic encapsulation layer and an organic encapsulation layer. The inorganic encapsulation layer is made of inorganic materials and can be used to block water and oxygen. The organic encapsulation layer is made of organic materials and can serve to flatten interfaces, cover defects, and relieve stress.

[0244] In some embodiments, please continue to refer to FIG4, and in conjunction with FIG7, FIG8, FIG9A and FIG9B, when the light transmittance of the main display area A1 of the display panel 10 is less than the light transmittance of the sub-display area A2, the effective light-emitting area of ​​a light-emitting device F located in the main display area A1 of the display panel 10 is greater than the effective light-emitting area of ​​a light-emitting device F of the same color located in the sub-display area A2 of the display panel 10.

[0245] For example, please continue to refer to Figures 7, 8, 9A and 9B. When the display panel 10 includes a first color light-emitting device F1, a second color light-emitting device F2 and a third color light-emitting device F3, the effective light-emitting area of ​​the first color light-emitting device F1 located in the main display area A1 of the display panel 10 can be greater than the effective light-emitting area of ​​the first color light-emitting device F1 located in the sub-display area A2 of the display panel 10.

[0246] The effective light-emitting area of ​​the second color light-emitting device F2 located in the main display area A1 of the display panel 10 can be greater than the effective light-emitting area of ​​the second color light-emitting device F2 located in the sub-display area A2 of the display panel 10.

[0247] The effective light-emitting area of ​​the third color light-emitting device F3 located in the main display area A1 of the display panel 10 can be greater than the effective light-emitting area of ​​the third color light-emitting device F3 located in the sub-display area A2 of the display panel 10.

[0248] It should be noted that, referring to Figures 7, 8, 9A, and 9B, and in conjunction with Figure 11, the "effective light-emitting area of ​​the light-emitting device F" refers to the area of ​​the light-emitting device F that actually participates in light emission and generates visible light. Typically, the area of ​​the light-emitting device F that actually participates in light emission and generates visible light is the area where the main body 411 within the first electrode 41 of the light-emitting device F and the pixel opening 61 within the pixel definition layer 6 overlap in the third direction (i.e., the thickness direction of the display panel 10) Z.

[0249] In other words, under normal circumstances, the effective light-emitting area of ​​the light-emitting device F refers to the area of ​​the overlapping region of the main body portion 411 in the first electrode 41 of the light-emitting device F and the pixel opening 61 in the pixel definition layer 6 in the third direction (i.e., the thickness direction of the display panel 10) Z.

[0250] By making the effective light-emitting area of ​​a light-emitting device F located in the main display area A1 of the display panel 10 larger than the effective light-emitting area of ​​a light-emitting device F of the same color located in the sub-display area A2 of the display panel 10, the area of ​​the overlapping region of the main body portion 411 in the first electrode 41 of the light-emitting device F in the main display area A1 of the display panel 10 and the pixel opening 61 in the pixel definition layer 6 in the third direction (i.e., the thickness direction of the display panel 10) Z is greater than the area of ​​the overlapping region of the main body portion 411 in the first electrode 41 of the light-emitting device F of the same color located in the sub-display area A2 of the display panel 10 and the pixel opening 61 in the pixel definition layer 6 in the third direction (i.e., the thickness direction of the display panel 10) Z. This makes it possible for the area of ​​the first electrode 41 of the light-emitting device F in the main display area A1 of the display panel 10 to be greater than the area of ​​the first electrode 41 of the light-emitting device F of the same color located in the sub-display area A2 of the display panel 10, meaning the area of ​​the first electrode 41 in the light-emitting device F in the sub-display area A2 of the display panel 10 is smaller. In the orthographic projection onto the substrate 1 within the display panel 10, the area ratio of the first electrode 41 within the light-emitting device F in the sub-display area A2 of the display panel 10 can be reduced, thereby reducing the obstruction of ambient light passing through the sub-display area A2 of the display panel 10, which is beneficial to improving the light transmittance of the sub-display area A2 of the display panel 10, so that the light transmittance of the main display area A1 of the display panel 10 is less than that of the sub-display area A2.

[0251] By making the effective light-emitting area of ​​a light-emitting device F located in the main display area A1 of the display panel 10 larger than the effective light-emitting area of ​​a light-emitting device F of the same color located in the sub-display area A2 of the display panel 10, and thus making the light transmittance of the main display area A1 of the display panel 10 less than that of the sub-display area A2, the number of light-emitting devices F per unit area in the sub-display area A2 of the display panel 10 can be the same as or similar to the number of light-emitting devices F per unit area in the main display area A1 of the display panel 10. That is, the pixel density (Pixels Per Inch, PPI) in the sub-display area A2 of the display panel 10 can be the same as or similar to the pixel density (Pixels Per Inch, PPI) in the main display area A1 of the display panel 10. This reduces the probability of mura (uneven brightness and darkness when displaying an image) in the display panel 10, improves the display uniformity of the display panel 10, and thus improves the display effect of the display panel 10.

[0252] Please refer to Figure 4, and in conjunction with Figures 8, 9B, and 13. When the effective light-emitting area of ​​a light-emitting device F located in the main display area A1 of the display panel 10 is greater than the effective light-emitting area of ​​a light-emitting device F of the same color located in the sub-display area A2 of the display panel 10, and when there is an overlapping area 41c between the effective light-emitting portion 41b of the first electrode 41 in the light-emitting device F and the first portion 41a of the first electrode 41, since the first portion 41a of the first electrode 41 in the light-emitting device F is set at an angle, the overlapping area 41c between the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41 is also set at an angle. The overlapping area 41c between the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41 easily leads to a decrease in the flatness of the effective light-emitting portion 41b of the first electrode 41.

[0253] Because the effective light-emitting area of ​​the light-emitting device F located in the sub-display area A2 of the display panel 10 is small, the area of ​​the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F in the sub-display area A2 of the display panel 10 is also small. This results in a large proportion of the overlapping area 41c between the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41 within the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F in the sub-display area A2 of the display panel 10. This can easily lead to a low flatness of the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F in the sub-display area A2 of the display panel 10, which in turn can easily lead to a decrease in the light emission symmetry of the light-emitting device F in the sub-display area A2 of the display panel 10. When a person views the display panel 10 with their eyes tilted, there may be a color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (for example, the image displayed in the sub-display area A2 of the display panel 10 may appear red, blue, or purple, etc.), which can easily lead to a reduction in the display uniformity of the display panel 10, and thus easily reduce the display effect of the display panel 10.

[0254] Based on this, the following description, in conjunction with Figures 14-37, will describe Embodiments 1-6 of this disclosure, in order to reduce the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 when the human eye views the display panel 10 with a squint (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears red, blue, or purple, etc.), and improve the display uniformity of the display panel 10, thereby enhancing the display effect of the display panel 10.

[0255] The following is a detailed description of Embodiment 1 of this disclosure.

[0256] Example 1: As shown in Figures 14, 15, 16, 17, and 18, Figures 14, 15, 16, and 17 are partial film layer structure diagrams of the sub-display area A2 of the display panel 10 according to some embodiments. Figure 18 is a cross-sectional view of a partial area of ​​the first planarization layer 51, the pixel definition layer 6, and the first electrode 41 in the light-emitting device F within the display panel 10 according to some embodiments. The display panel 10 may further include a support portion 8. The support portion 8 is located in the sub-display area A2 of the display panel 10. The first planarization layer 51 within the display panel 10 covers the support portion 8. The support portion 8 is disposed near the first through-hole 511 within the first planarization layer 51, and the support portion 8 is located on the side of the first through-hole 511 within the first planarization layer 51 near the center of the first electrode 41 in the light-emitting device F. The material of the support portion 8 is different from the material of the first planarization layer 51.

[0257] By providing a support portion 8 within the sub-display area A2 of the display panel 10, and having the first planarization layer 51 within the display panel 10 covering the support portion 8, and the support portion 8 being positioned close to the first through-hole 511 within the first planarization layer 51, the support portion 8 is located on the side of the first through-hole 511 within the first planarization layer 51 near the center of the first electrode 41 within the light-emitting device F. That is, the support portion 8 is located on the side of the first through-hole 511 within the first planarization layer 51 near the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F. The support portion 8 can support the sidewall 511c of the first through-hole 511 within the first planarization layer 51 near the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F, thereby ensuring that in a cross-section of the display panel 10 parallel to the third direction (i.e., the thickness direction of the display panel 10), the effective light-emitting portion of the first through-hole 511 near the first electrode 41... One sidewall 511c of part 41b is arc-shaped and protrudes towards the interior of the first through hole 511. This improves the flatness of the area adjacent to the surface 51a of the first planarization layer 51 away from the substrate 1 in the sidewall 511c of the effective light-emitting part 41b of the first through hole 511 near the first electrode 41. This improves the flatness of the part of the first electrode 41 (i.e., the first part 41a of the first electrode 41) covering the sidewall 511c of the effective light-emitting part 41b of the first electrode 41. This results in a higher flatness of the overlapping area 41c of the effective light-emitting part 41b and the first part 41a of the first electrode 41, thereby improving the flatness of the effective light-emitting part 41b of the first electrode 41 and improving the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears red, blue, or purple) can be reduced, which helps to improve the display uniformity of the display panel 10 and thus improve the display effect of the display panel 10.

[0258] For example, referring to Figures 14 and 16, the support portion 8 within the display panel 10 can be embedded within the first planarization layer 51, and along the third direction (i.e., the thickness direction of the display panel 10) Z, the support portion 8 can have a gap between itself and the first conductive layer 21 within the display panel 10, and between itself and the first electrode 41 within the light-emitting device F. That is, along the third direction (i.e., the thickness direction of the display panel 10) Z, the support portion 8 and the first conductive layer 21 within the display panel 10, as well as the first electrode 41 within the light-emitting device F, do not contact each other.

[0259] Alternatively, please refer to Figures 15 and 17, where the support portion 8 within the display panel 10 can contact the first conductive layer 21.

[0260] For example, the material of the support portion 8 within the display panel 10 may include at least one of metal and metal oxide.

[0261] For example, the material of the support portion 8 within the display panel 10 may include one or more of the following metals: nickel (Ni), copper (Cu), aluminum (Al), tungsten (W), and molybdenum (Mo).

[0262] For example, the material of the support portion 8 within the display panel 10 may include one or more metal oxide materials such as indium tin oxide (ITO).

[0263] For example, the material of the support portion 8 within the display panel 10 may include one or more of the following metals: nickel (Ni), copper (Cu), aluminum (Al), tungsten (W), and molybdenum (Mo), as well as one or more metal oxides such as indium tin oxide (ITO).

[0264] For example, referring to Figures 15 and 17, the material of the support portion 8 within the display panel 10 can be the same as the material of the first conductive layer 21. For instance, both the material of the support portion 8 and the material of the first conductive layer 21 within the display panel 10 can include indium tin oxide (ITO).

[0265] Please refer to Figures 15 and 17. When the material of the support portion 8 within the display panel 10 is the same as that of the first conductive layer 21, and the support portion 8 and the first conductive layer 21 are in contact, the support portion 8 and the first conductive layer 21 within the display panel 10 can be an integral structure. That is, there is no obvious connection interface between the support portion 8 and the first conductive layer 21 within the display panel 10.

[0266] For example, as shown in Figures 19 and 20, and in conjunction with Figures 14, 15, 16, 17, and 18, Figures 19 and 20 are planar structural diagrams of the support portion 8, the first through-hole 511, the pixel opening 61, and the first electrode 41 within the light-emitting device F in a display panel 10 according to some embodiments. The support portion 8 in the display panel 10 may surround at least a portion of the first through-hole 511.

[0267] For example, referring to Figures 19 and 20, the support portion 8 within the display panel 10 can be arranged around a portion of the first through hole 511.

[0268] For example, the support portion 8 within the display panel 10 can be arranged around all the first through holes 511.

[0269] For example, please continue to refer to Figures 19 and 20. When the support portion 8 in the display panel 10 is provided around a portion of the first through hole 511, in the orthographic projection onto the substrate 1 in the display panel 10, the support portion 8 may be located within the boundary range of the first electrode 41 in the light-emitting device F.

[0270] When the material of the support portion 8 within the display panel 10 includes metal, by ensuring that the support portion 8 is located within the boundary range of the first electrode 41 within the light-emitting device F in the orthogonal projection onto the substrate 1 within the display panel 10, the total area of ​​the support portion 8 and the first electrode 41 within the light-emitting device F in the orthogonal projection onto the substrate 1 within the display panel 10 is equal to the area of ​​the first electrode 41 within the light-emitting device F. This avoids increasing the area ratio of the light-shielding metal within the sub-display area A2 of the display panel 10 when the support portion 8 is provided within the sub-display area A2 of the display panel 10. This helps to reduce the obstruction of ambient light passing through the sub-display area A2 of the display panel 10, thereby improving the light transmittance of the sub-display area A2 of the display panel 10.

[0271] For example, please continue to refer to FIG19 and in conjunction with FIG18, when the first through hole 511 in the first planarization layer 51 has a first opening 511a located on the side surface 51a of the first planarization layer 51 away from the substrate 1 and a second opening 511b located on the side surface 51b of the first planarization layer 51 close to the substrate 1, and the area of ​​the first opening 511a of the first through hole 511 is larger than the area of ​​the second opening 511b, in the orthographic projection onto the substrate 1 in the display panel 10, at least a portion of the support portion 8 in the display panel 10 can be located between the boundary of the first opening 511a and the boundary of the second opening 511b of the first through hole 511.

[0272] By positioning at least a portion of the support portion 8 within the display panel 10 between the first opening 511a and the second opening 511b of the first through-hole 511 in the orthogonal projection onto the substrate 1 within the display panel 10, the distance between the support portion 8 and the sidewall 511c of the first through-hole 511 near the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F can be reduced. This improves the supporting effect of the support portion 8 on the sidewall 511c of the first through-hole 511 near the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F. Consequently, in a cross-section of the display panel 10 parallel to the third direction (i.e., the thickness direction of the display panel 10) Z, the sidewall 511c of the first through-hole 511 near the effective light-emitting portion 41b of the first electrode 41 is arc-shaped and faces the first through-hole 511. The internal protrusions further improve the flatness of the portion of the first electrode 41 adjacent to the effective light-emitting portion 41b of the first through-hole 511 and the surface 51a of the first planarization layer 51 away from the substrate 1. This further improves the flatness of the portion of the first electrode 41 (i.e., the first part 41a of the first electrode 41) covering the sidewall 511c of the effective light-emitting portion 41b of the first electrode 41. This further improves the flatness of the overlapping area 41c of the effective light-emitting portion 41b and the first part 41a of the first electrode 41, thereby further improving the flatness of the effective light-emitting portion 41b of the first electrode 41. This also helps to further improve the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears red, blue, or purple) can be further reduced, which is beneficial to further improving the display uniformity of the display panel 10, and thus further improving the display effect of the display panel 10.

[0273] For example, please continue to refer to FIG20 and in conjunction with FIG18, the first through hole 511 in the first planarization layer 51 has a first opening 511a located on the side surface 51a of the first planarization layer 51 away from the substrate 1, and a second opening 511b located on the side surface 51b of the first planarization layer 51 close to the substrate 1. The area of ​​the first opening 511a of the first through hole 511 is larger than the area of ​​the second opening 511b. When the first electrode 41 in the light-emitting device F (e.g., the main body portion 411 in the first electrode 41) and the pixel opening 61 in the pixel definition layer 6 overlap in the third direction (i.e., the thickness direction of the display panel 10) Z, in the orthographic projection onto the substrate 1 in the display panel 10, at least a portion of the support portion 8 in the display panel 10 can be located between the boundary of the second opening 511b of the first through hole 511 and the boundary of the pixel opening 61 in the pixel definition layer 6.

[0274] By positioning at least a portion of the support portion 8 within the display panel 10 in the orthographic projection onto the substrate 1 within the display panel 10 between the boundary of the second opening 511b of the first through-hole 511 and the boundary of the pixel opening 61 within the pixel definition layer 6, the distance between the support portion 8 within the display panel 10 and the sidewall 511c of the effective light-emitting portion 41b of the first through-hole 511 near the first electrode 41 within the light-emitting device F can be further reduced. This is beneficial for further enhancing the supporting effect of the support portion 8 on the sidewall 511c of the effective light-emitting portion 41b of the first through-hole 511 near the first electrode 41 within the light-emitting device F. Consequently, in a cross-section of the display panel 10 parallel to the third direction (i.e., the thickness direction of the display panel 10) Z, the sidewall 511c of the effective light-emitting portion 41b of the first through-hole 511 near the first electrode 41 is arranged with an arc surface, and... The protrusion towards the interior of the first through hole 511 further improves the flatness of the portion of the sidewall 511c of the effective light-emitting portion 41b of the first electrode 41 adjacent to the surface 51a of the first planarization layer 51 away from the substrate 1. This further improves the flatness of the portion of the first electrode 41 (i.e., the first part 41a of the first electrode 41) covering the sidewall 511c of the effective light-emitting portion 41b of the first electrode 41. This further improves the flatness of the overlapping area 41c of the effective light-emitting portion 41b and the first part 41a of the first electrode 41, thereby further improving the flatness of the effective light-emitting portion 41b of the first electrode 41. This also helps to further improve the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears red, blue, or purple) can be further reduced, which is beneficial to further improving the display uniformity of the display panel 10, and thus further improving the display effect of the display panel 10.

[0275] For example, as shown in Figures 21 and 22, and in conjunction with Figures 4 and 18, Figures 21 and 22 are planar structural diagrams of the first support portion 81, the first through-hole 511, the pixel opening 61, and the first electrode 41 in the first color light-emitting device F1 within a display panel 10 according to some embodiments. It should be noted that the difference between Figures 21 and 22 is that, in Figure 21, in the orthographic projection onto the substrate 1 within the display panel 10, at least a portion of the support portion 8 within the display panel 10 is located between the boundary of the first opening 511a and the boundary of the second opening 511b of the first through-hole 511. In Figure 22, in the orthographic projection onto the substrate 1 within the display panel 10, at least a portion of the support portion 8 within the display panel 10 is located between the boundary of the second opening 511b of the first through-hole 511 and the boundary of the pixel opening 61 within the pixel definition layer 6.

[0276] When the display panel 10 includes a first color light-emitting device F1, and the second length L2 corresponding to the first color light-emitting device F1 is less than the second length L2 corresponding to other color light-emitting devices F (e.g., the second color light-emitting device F2 and the third color light-emitting device F3) in the display panel 10, the support portion 8 in the display panel 10 includes a first support portion 81, and the first support portion 81 is disposed near the first through hole 511 corresponding to the first electrode 41 in the first color light-emitting device F1.

[0277] Because the second length L2 corresponding to the first color light-emitting device F1 in the display panel 10 is smaller than the second length L2 corresponding to other color light-emitting devices F (e.g., the second color light-emitting device F2 and the third color light-emitting device F3) in the display panel 10, that is, in the orthogonal projection onto the substrate 1 in the display panel 10, the length of the pixel opening 61 in the pixel definition layer 6 corresponding to the first color light-emitting device F1 in the display panel 10 on the reference line C is smaller. This results in the overlapping area 41c of the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41 in the first color light-emitting device F1 having a larger proportion in the effective light-emitting portion 41b of the first electrode 41 in the first color light-emitting device F1. Consequently, the overlapping area 41c of the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41 in the first color light-emitting device F1 has a greater impact on the flatness of the effective light-emitting portion 41b of the first electrode 41.

[0278] By positioning the first support portion 81 close to the first through hole 511 corresponding to the first electrode 41 within the first color light-emitting device F1, the first support portion 81 can support the sidewall 511c of the first through hole 511 corresponding to the first electrode 41 within the first color light-emitting device F1. This results in the sidewall 511c of the first through hole 511 near the effective light-emitting portion 41b of the first electrode 41 within the first color light-emitting device F1 being arc-shaped and protruding towards the interior of the first through hole 511 in a cross-section parallel to the third direction (i.e., the thickness direction of the display panel 10) Z. In step c, the flatness of the portion of the area adjacent to the surface 51a of the first planarization layer 51 away from the substrate 1 is improved, which in turn can improve the flatness of the portion of the first electrode 41 (i.e. the first part 41a of the first electrode 41) on the sidewall 511c of the effective light-emitting portion 41b of the first electrode 41 in the first color light-emitting device F1 that covers the first through hole 511. This results in a higher flatness of the overlapping area 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41, thereby improving the flatness of the effective light-emitting portion 41b of the first electrode 41 in the first color light-emitting device F1 and improving the light emission symmetry of the first color light-emitting device F1 located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears red, blue, or purple) can be reduced, which helps to improve the display uniformity of the display panel 10 and thus improve the display effect of the display panel 10.

[0279] For example, as shown in Figures 23 and 24, and in conjunction with Figures 4 and 18, Figures 23 and 24 are planar structural diagrams of the second support portion 82, the first through-hole 511, the pixel opening 61, and the first electrode 41 in the second color light-emitting device F2 within a display panel 10 according to some embodiments. It should be noted that the difference between Figures 23 and 24 is that, in Figure 23, in the orthographic projection onto the substrate 1 within the display panel 10, at least a portion of the support portion 8 within the display panel 10 is located between the boundary of the first opening 511a and the boundary of the second opening 511b of the first through-hole 511. In Figure 24, in the orthographic projection onto the substrate 1 within the display panel 10, at least a portion of the support portion 8 within the display panel 10 is located between the boundary of the second opening 511b of the first through-hole 511 and the boundary of the pixel opening 61 within the pixel definition layer 6.

[0280] When the display panel 10 includes a second color light-emitting device F2, the support portion 8 within the display panel 10 may include a second support portion 82. The second support portion 82 is disposed near the first through hole 511 corresponding to the first electrode 41 within the second color light-emitting device F2.

[0281] By positioning the second support portion 82 close to the first through hole 511 corresponding to the first electrode 41 within the second color light-emitting device F2, the second support portion 82 can support the sidewall 511c of the first through hole 511 corresponding to the first electrode 41 within the second color light-emitting device F2. This results in the sidewall 511c of the first through hole 511 near the effective light-emitting portion 41b of the first electrode 41 within the second color light-emitting device F2 being arc-shaped and protruding towards the interior of the first through hole 511 in a cross-section parallel to the third direction (i.e., the thickness direction of the display panel 10) Z. In step c, the flatness of the portion of the area adjacent to the surface 51a of the first planarization layer 51 away from the substrate 1 is improved, which in turn improves the flatness of the portion of the first electrode 41 (i.e. the first part 41a of the first electrode 41) on the sidewall 511c of the effective light-emitting portion 41b of the first electrode 41 near the second color light-emitting device F2, which covers the first via 511. This results in a higher flatness of the overlapping area 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41, thereby improving the flatness of the effective light-emitting portion 41b of the first electrode 41 in the second color light-emitting device F2 and improving the light emission symmetry of the second color light-emitting device F2 located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears red, blue, or purple) can be reduced, which helps to improve the display uniformity of the display panel 10 and thus improve the display effect of the display panel 10.

[0282] It should be noted that when the display panel 10 includes a third color light-emitting device F3, a third support part (not shown in the figure) can be provided in the display panel 10 according to actual needs, and the third support part can be provided close to the first through hole 511 corresponding to the first electrode 41 in the third color light-emitting device F3, which will not be described in detail here.

[0283] Please continue to refer to Figures 21, 22, 23 and 24, and in conjunction with Figures 4 and 18. The display panel 10 includes a first color light-emitting device F1 and a second color light-emitting device F2. The second length L2 corresponding to the first color light-emitting device F1 is less than the second length L2 corresponding to the second color light-emitting device F2. In the case that the support portion 8 in the display panel 10 includes a first support portion 81 and a second support portion 82, the dimension L81 of the first support portion 81 along the preset direction N axis can be greater than the dimension L82 of the second support portion 82 along the preset direction N axis.

[0284] Because the second length L2 corresponding to the first color light-emitting device F1 in the display panel 10 is less than the second length L2 corresponding to the second color light-emitting device F2, that is, in the orthogonal projection onto the substrate 1 in the display panel 10, the length of the pixel opening 61 in the pixel definition layer 6 corresponding to the first color light-emitting device F1 in the display panel 10 on the reference line C is less than the length of the pixel opening 61 in the pixel definition layer 6 corresponding to the second color light-emitting device F2 on the reference line C, therefore, the overlapping area 41c of the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41 in the first color light-emitting device F1 accounts for a certain percentage of the effective light-emitting portion 41b of the first electrode 41 in the first color light-emitting device F1. The proportion of the overlapping area 41c of the effective light-emitting portion 41b and the first part 41a of the first electrode 41 in the second color light-emitting device F2 within the effective light-emitting portion 41b of the first electrode 41 in the second color light-emitting device F2 is greater than the proportion of the overlapping area 41c of the overlapping area 41c of the effective light-emitting portion 41b and the first part 41a of the first electrode 41 in the first color light-emitting device F1 within the second color light-emitting device F2 within the effective light-emitting portion 41b of the first electrode 41 on the flatness of the effective light-emitting portion 41b of the first electrode 41.

[0285] By making the dimension L81 of the first support portion 81 along the preset direction N axis larger than the dimension L82 of the second support portion 82 along the preset direction N axis, the first support portion 81 corresponding to the first color light-emitting device F1 and the second support portion 82 corresponding to the second color light-emitting device F2 can be differentiated. This allows the first support portion 81 corresponding to the first color light-emitting device F1, whose flatness is greatly affected by the overlapping area 41c of the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41, to have a larger dimension L81 along the preset direction N axis than the first support portion 81 of the first color light-emitting device F1. The second support portion 82 corresponding to the second color light-emitting device F2, whose overlap region 41c between the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41 has a smaller impact on the flatness of the effective light-emitting portion 41b of the first electrode 41, has a smaller dimension L82 along the preset direction N axis. This can simultaneously improve the flatness of the effective light-emitting portion 41b of the first electrode 41 within both the first color light-emitting device F1 and the second color light-emitting device F2, and is beneficial for improving the light emission symmetry of the first color light-emitting device F1 and the second color light-emitting device F2 located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple) can be further reduced, which is beneficial for further improving the display uniformity of the display panel 10, and thus further improving the display effect of the display panel 10.

[0286] The following is a detailed description of Embodiment 2 of this disclosure.

[0287] Example 2: As shown in Figure 25, Figure 25 is a planar structural diagram of the first through hole 511, pixel opening 61, and first electrode 41 in the light-emitting device F in the display panel 10 according to some embodiments. The first length of the light-emitting device F in the display panel 10 is L1, and the second length is L2.

[0288] L1 is greater than or equal to 7 μm. Or, if L1 is less than 7 μm, L2 = n × L1 + m, -1.5 ≥ n ≥ -3, 30 ≥ m ≥ 20.

[0289] When the first length L1 corresponding to the light-emitting device F in the display panel 10 is greater than or equal to 7 μm, since the first length L1 corresponding to the light-emitting device F in the display panel 10 is relatively large, the minimum distance on the reference line C between the boundary of the first via 511 corresponding to the light-emitting device F in the display panel 10 (i.e., the boundary of the second opening 511b of the first via 511) and the boundary of the pixel opening 61 in the pixel definition layer 6 corresponding to the same light-emitting device F is relatively large. That is, the minimum distance between the first via 511 corresponding to the light-emitting device F in the display panel 10 and the pixel opening 61 in the pixel definition layer 6 corresponding to the same light-emitting device F is relatively large. The larger spacing between them reduces the proportion of the overlapping area 41c between the effective light-emitting portion 41b and the first portion 41a of the first electrode 41 within the effective light-emitting portion 41b of the first electrode 41 in the light-emitting device F. This reduces the impact of the overlapping area 41c on the flatness of the effective light-emitting portion 41b of the first electrode 41, thus improving the flatness of the effective light-emitting portion 41b within the light-emitting device F and enhancing the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple) is reduced, improving the display uniformity of the display panel 10 and thus enhancing its display effect.

[0290] When the first length L1 corresponding to the light-emitting device F in the display panel 10 is less than 7μm, since the first length L1 corresponding to the light-emitting device F in the display panel 10 is small, the minimum distance on the reference line C between the boundary of the first through hole 511 (i.e. the boundary of the second opening 511b of the first through hole 511) and the boundary of the pixel opening 61 in the pixel definition layer 6 corresponding to the same light-emitting device F is small. That is, the distance between the first through hole 511 corresponding to the light-emitting device F in the display panel 10 and the pixel opening 61 in the pixel definition layer 6 corresponding to the same light-emitting device F is small. By setting the second length L2 corresponding to the light-emitting device F in the display panel 10 to n×L1+m, ​​-1.5≥n≥-3, 30≥m≥20, the second length L2 corresponding to the light-emitting device F in the display panel 10 is negatively correlated with the first length L1 corresponding to the light-emitting device F. That is, when the first length L1 corresponding to the light-emitting device F is small, the second length L2 corresponding to the light-emitting device F is large. This makes the length of the effective light-emitting portion 41b of the first electrode 41 in the light-emitting device F on the reference line C larger, which can reduce the length of the effective light-emitting portion 41b of the first electrode 41 in the light-emitting device F. The overlapping area 41c of the first portion 41a of the first electrode 41 and 1b is reduced in proportion to the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F. This reduces the impact of the overlapping area 41c of the first portion 41a of the first electrode 41 on the flatness of the effective light-emitting portion 41b of the first electrode 41, thus improving the flatness of the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F and enhancing the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple) is reduced, improving the display uniformity of the display panel 10 and thus enhancing the display effect of the display panel 10.

[0291] For example, when the first length L1 corresponding to the light-emitting device F in the display panel 10 is greater than or equal to 7 μm, the first length L1 corresponding to the light-emitting device F in the display panel 10 can be 7 μm, 7.5 μm, 8 μm, 8.5 μm, 9 μm, 9.5 μm, 10 μm, 10.5 μm, 11 μm, 11.5 μm, 12 μm, 12.5 μm or 13 μm, etc.

[0292] For example, when the first length L1 corresponding to the light-emitting device F in the display panel 10 is less than 7μm, the first length L1 corresponding to the light-emitting device F in the display panel 10 can be 6.8μm, 6.5μm, 6.3μm, 6μm, 5.8μm, 5.5μm, 5.3μm, 5μm, 4.8μm, 4.5μm, 4.3μm, 4μm or 3.9μm, etc.

[0293] n can be -1.5, -1.8, -2, -2.3, -2.5, -2.8, or -3, etc.

[0294] m can be 20, 23, 25, 28, or 30, etc.

[0295] For example, please continue to refer to Figure 25 and in conjunction with Figure 13. In the case where the first length of the light-emitting device F in the display panel 10 is L1 and the second length is L2, and L1 is greater than or equal to 7 μm; or, where L1 is less than 7 μm, L2 = n × L1 + m, -1.5 ≥ n ≥ -3, and 30 ≥ m ≥ 20, multiple (e.g., five) points can be arbitrarily selected on the surface of the effective light-emitting portion 41b of the first electrode 41 in the display panel 10 away from the substrate 1. The slope of the straight line connecting the multiple (e.g., five) points can be less than 0.008, so that the flatness of the effective light-emitting portion 41b of the first electrode 41 in the light-emitting device F is high, which is beneficial to reduce the influence of the effective light-emitting portion 41b of the first electrode 41 on the color shift symmetry of the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears red, blue, or purple) can be reduced, which helps to improve the display uniformity of the display panel 10 and thus improve the display effect of the display panel 10.

[0296] For example, please continue to refer to FIG25. When it is necessary to increase the second length L2 corresponding to the light-emitting device F in the display panel 10, when forming the pixel opening 61 in the pixel definition layer 6 in the display panel 10, the pixel definition layer 6 in the display panel 10 can be overexposed (e.g., by increasing the exposure time and / or increasing the exposure intensity, etc.) to increase the size of the pixel opening 61 in the pixel definition layer 6, thereby increasing the second length L2 of the light-emitting device F corresponding to the pixel opening 61.

[0297] The following is a detailed description of Embodiment 3 of this disclosure.

[0298] Example 3: As shown in Figure 26, Figure 26 is a planar structural diagram of the first through hole 511, pixel opening 61, and first electrode 41 in the light-emitting device F within the display panel 10 according to some embodiments. The inner diameters of the pixel opening 61 in the pixel definition layer 6 are not completely equal along different axial directions. The pixel opening 61 in the pixel definition layer 6 has a maximum inner diameter value R1 along the axis of the preset direction (i.e., the direction in which the main body portion 411 and the connecting portion 412 of the first electrode 41 in the light-emitting device F are connected). That is, when the inner diameters of the pixel opening 61 in the pixel definition layer 6 are not completely equal along different axial directions, the second length L2 corresponding to the light-emitting device F in the display panel 10 is equal to the maximum inner diameter value R1 of the pixel opening 61 in the pixel definition layer 6 corresponding to the light-emitting device F.

[0299] When the inner diameters of the pixel openings 61 within the pixel definition layer 6 are not completely equal along different axial directions, by making the pixel openings 61 within the pixel definition layer 6 have the maximum inner diameter value R1 along the axis of the preset direction (i.e., the direction in which the main body portion 411 and the connecting portion 412 of the first electrode 41 within the light-emitting device F are connected), the second length L2 of the light-emitting device F corresponding to the pixel opening 61 is larger, thereby making the length of the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F on the reference line C larger, which can reduce the effective light-emitting portion of the first electrode 41 within the light-emitting device F. The overlapping region 41c of the first portion 41a of the first electrode 41 and the first portion 41b of the first electrode 41 accounts for a smaller proportion of the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F. This reduces the impact of the overlapping region 41c of the effective light-emitting portion 41b and the first portion 41a of the first electrode 41 on the flatness of the effective light-emitting portion 41b of the first electrode 41, thus improving the flatness of the effective light-emitting portion 41b of the first electrode 41 within the light-emitting device F and enhancing the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, this reduces the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple), improving the display uniformity of the display panel 10 and ultimately enhancing its display effect.

[0300] It should be noted that the embodiment shown in Figure 26 is only illustrated by the example where the inner diameters of the pixel openings 61 in the pixel definition layer 6 are not completely equal along different axial directions, and the pixel openings 61 in the pixel definition layer 6 are elliptical. However, in this disclosure, the shape of the pixel openings 61 in the pixel definition layer 6 is not limited to this when the inner diameters of the pixel openings 61 in the pixel definition layer 6 are not completely equal along different axial directions. For example, when the inner diameters of the pixel openings 61 in the pixel definition layer 6 are not completely equal along different axial directions, the shape of the pixel openings 61 in the pixel definition layer 6 can also be rectangular, triangular, rhomboid, or other shapes with corners.

[0301] The following is a detailed description of Embodiment 4 of this disclosure.

[0302] Example 4: As shown in Figures 27 and 28, and in conjunction with Figure 25, Figures 27 and 28 are planar structural diagrams of a partial area of ​​the sub-display area A2 of the display panel 10 according to some embodiments. When the light-emitting devices F located in the sub-display area A2 of the display panel 10 are arranged in an array along the row direction X and column direction Y, and the light-emitting devices F in the sub-display area A2 of the display panel 10 include first color light-emitting devices F1, along the column direction Y, the first through-holes 511 corresponding to the first electrodes 41 in two adjacent rows of first color light-emitting devices F1 are located between the pixel openings 61 corresponding to the first electrodes 41 in two adjacent rows of first color light-emitting devices F1 (this situation is shown in Figure 27).

[0303] Alternatively, along the X-direction, the first through-holes 511 corresponding to the first electrodes 41 in two adjacent columns of first color light-emitting devices F1 are located between the pixel openings 61 corresponding to the first electrodes 41 in two adjacent columns of first color light-emitting devices F1 (this situation is shown in Figure 28).

[0304] When the light-emitting devices F in the sub-display area A2 of the display panel 10 are arranged in an array along the row direction X and the column direction Y, by making the first through-hole 511 corresponding to the first electrode 41 in two adjacent rows of first color light-emitting devices F1 located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent rows of first color light-emitting devices F1 along the column direction Y, the first part 41a of the first electrode 41 in two adjacent rows of first color light-emitting devices F1 is located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent rows of first color light-emitting devices F1 along the column direction Y, and further making the overlapping area 41c of the effective light-emitting part 41b and the first part 41a of the first electrode 41 in two adjacent rows of first color light-emitting devices F1 located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent rows of first color light-emitting devices F1 along the column direction Y.

[0305] Because the flatness of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in the first color light-emitting device F1 is generally lower than the flatness of other parts, the light emission symmetry of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in the first color light-emitting device F1 is relatively poor. By making the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in the column direction Y, located in the adjacent two rows of the first color light-emitting device F1, Between the pixel openings 61 corresponding to the first electrode 41, the regions with relatively poor light emission symmetry in the effective light-emitting portions 41b of the first electrode 41 in adjacent rows of the first color light-emitting devices F1 (i.e., the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first portion 41a of the first electrode 41 in the first color light-emitting device F1) can cancel each other out during light emission. This is beneficial to improving the light emission symmetry of the first color light-emitting device F1 located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple) can be reduced, which is beneficial to improving the display uniformity of the display panel 10 and thus improving the display effect of the display panel 10.

[0306] Alternatively, when the light-emitting devices F in the sub-display area A2 of the display panel 10 are arranged in an array along the row direction X and the column direction Y, by making the first through-holes 511 corresponding to the first electrodes 41 in two adjacent columns of first color light-emitting devices F1 located between the pixel openings 61 corresponding to the first electrodes 41 in two adjacent columns of first color light-emitting devices F1 along the row direction X, the first portion 41a of the first electrodes 41 in two adjacent columns of first color light-emitting devices F1 is located between the pixel openings 61 corresponding to the first electrodes 41 in two adjacent columns of first color light-emitting devices F1 in the row direction X, and further making the overlapping area 41c of the effective light-emitting portion 41b and the first portion 41a of the first electrode 41 in two adjacent columns of first color light-emitting devices F1 located between the pixel openings 61 corresponding to the first electrodes 41 in two adjacent columns of first color light-emitting devices F1 in the row direction X.

[0307] Because the flatness of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in the first color light-emitting device F1 is generally lower than the flatness of other parts, the light emission symmetry of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in the first color light-emitting device F1 is relatively poor. This can be mitigated by making the light emission symmetry of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in adjacent columns of the first color light-emitting device F1 more even in the row direction X. The overlapping region 41c of the first part 41a of electrode 41 is located between the pixel openings 61 corresponding to the first electrodes 41 in two adjacent columns of first color light-emitting devices F1. This allows the regions with relatively poor light emission symmetry in the effective light-emitting portions 41b of the first electrodes 41 in two adjacent columns of first color light-emitting devices F1 (i.e., the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41) to cancel each other out during light emission. This is beneficial for improving the light emission symmetry of the first color light-emitting devices F1 located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple) can be reduced, which is beneficial for improving the display uniformity of the display panel 10 and thus improving the display effect of the display panel 10.

[0308] For example, as shown in Figures 29 and 30, and in conjunction with Figure 25, Figures 29 and 30 are planar structural diagrams of a partial area of ​​the sub-display area A2 of the display panel 10 according to some embodiments. When the light-emitting devices F located in the sub-display area A2 of the display panel 10 are arranged in an array along the row direction X and the column direction Y, and the light-emitting devices F in the sub-display area A2 of the display panel 10 include second-color light-emitting devices F2, along the column direction Y, the first through-holes 511 corresponding to the first electrodes 41 in two adjacent rows of second-color light-emitting devices F2 are located between the pixel openings 61 corresponding to the first electrodes 41 in two adjacent rows of second-color light-emitting devices F2 (this situation is shown in Figure 29).

[0309] Alternatively, along the row direction X, the first through-hole 511 corresponding to the first electrode 41 in two adjacent columns of second color light-emitting devices F2 is located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent columns of second color light-emitting devices F2 (this situation is shown in Figure 30).

[0310] In the case where the light-emitting devices F in the sub-display area A2 of the display panel 10 are arranged in an array along the row direction X and the column direction Y, and the light-emitting devices F in the sub-display area A2 of the display panel 10 include second color light-emitting devices F2, along the column direction Y, the first through holes 511 corresponding to the first electrodes 41 in two adjacent rows of second color light-emitting devices F2 are located between the pixel openings 61 corresponding to the first electrodes 41 in two adjacent rows of second color light-emitting devices F2.

[0311] Alternatively, along the X-direction, the first through-hole 511 corresponding to the first electrode 41 in two adjacent columns of the second color light-emitting device F2 is located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent columns of the second color light-emitting device F2.

[0312] When the light-emitting devices F in the sub-display area A2 of the display panel 10 are arranged in an array along the row direction X and the column direction Y, by making the first through-hole 511 corresponding to the first electrode 41 in two adjacent rows of second color light-emitting devices F2 located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent rows of second color light-emitting devices F2 along the column direction Y, the first part 41a of the first electrode 41 in two adjacent rows of second color light-emitting devices F2 is located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent rows of second color light-emitting devices F2 in the column direction Y, and further making the overlapping area 41c of the effective light-emitting part 41b and the first part 41a of the first electrode 41 in two adjacent rows of second color light-emitting devices F2 located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent rows of second color light-emitting devices F2 in the column direction Y.

[0313] Because the flatness of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 in the second color light-emitting device F2 and the first part 41a of the first electrode 41 is generally lower than the flatness of other parts, the light emission symmetry of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in the second color light-emitting device F2 is relatively poor. This can be improved by making the light emission symmetry of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in adjacent rows of the second color light-emitting device F2 more even in the column direction Y. The overlapping region 41c of the first part 41a of electrode 41 is located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent rows of second color light-emitting devices F2. This allows the regions with relatively poor light emission symmetry in the effective light-emitting portions 41b of the first electrode 41 in two adjacent rows of second color light-emitting devices F2 (i.e., the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41) to cancel each other out during light emission. This is beneficial for improving the light emission symmetry of the second color light-emitting devices F2 located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple) can be reduced, which is beneficial for improving the display uniformity of the display panel 10 and thus improving the display effect of the display panel 10.

[0314] Alternatively, when the light-emitting devices F in the sub-display area A2 of the display panel 10 are arranged in an array along the row direction X and the column direction Y, by making the first through-hole 511 corresponding to the first electrode 41 in two adjacent columns of second color light-emitting devices F2 located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent columns of second color light-emitting devices F2 along the row direction X, the first portion 41a of the first electrode 41 in two adjacent columns of second color light-emitting devices F2 is located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent columns of second color light-emitting devices F2 in the row direction X, and further making the overlapping area 41c of the effective light-emitting portion 41b and the first portion 41a of the first electrode 41 in two adjacent columns of second color light-emitting devices F2 located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent columns of second color light-emitting devices F2 in the row direction X.

[0315] Because the flatness of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 in the second color light-emitting device F2 and the first part 41a of the first electrode 41 is generally lower than the flatness of other parts, the light emission symmetry of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in the second color light-emitting device F2 is relatively poor. This can be mitigated by making the light emission symmetry of the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41 in adjacent columns of the second color light-emitting device F2 more even in the row direction X. The overlapping region 41c of the first part 41a of electrode 41 is located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent columns of second color light-emitting devices F2. This allows the regions with relatively poor light emission symmetry in the effective light-emitting portions 41b of the first electrode 41 in two adjacent columns of second color light-emitting devices F2 (i.e., the overlapping region 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41) to cancel each other out during light emission. This is beneficial for improving the light emission symmetry of the second color light-emitting devices F2 located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple) can be reduced, which is beneficial for improving the display uniformity of the display panel 10 and thus improving the display effect of the display panel 10.

[0316] It should be noted that when the light-emitting devices F located in the sub-display area A2 of the display panel 10 are arranged in an array along the row direction X and the column direction Y, and the light-emitting devices F in the sub-display area A2 of the display panel 10 include third-color light-emitting devices F3, along the column direction Y, the first through-hole 511 corresponding to the first electrode 41 in two adjacent rows of third-color light-emitting devices F3 can be located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent rows of third-color light-emitting devices F3. Alternatively, along the row direction X, the first through-hole 511 corresponding to the first electrode 41 in two adjacent columns of third-color light-emitting devices F3 can be located between the pixel openings 61 corresponding to the first electrode 41 in two adjacent columns of third-color light-emitting devices F3, which will not be elaborated further here.

[0317] Furthermore, if the light-emitting device F located in the sub-display area A2 of the display panel 10 includes a first color light-emitting device F1, a second color light-emitting device F2, and a third color light-emitting device F3, the above-mentioned settings can be made for at least one of the first color light-emitting device F1, the second color light-emitting device F2, and the third color light-emitting device F3 based on actual needs.

[0318] The following provides a detailed description of Embodiment 5 of this disclosure.

[0319] Example 5: As shown in Figures 31 and 32, Figure 31 is a planar structural diagram of the first through-hole 511, pixel opening 61, and first electrode 41 in the light-emitting device F within the display panel 10 according to some embodiments. Figure 32 is a film layer structure diagram of a partial area of ​​the sub-display area A2 of the display panel 10 according to some embodiments. The first electrodes 41 in at least two light-emitting devices F located in the sub-display area A2 of the display panel 10 are electrically connected through the same first through-hole 511 and first conductive layer 21.

[0320] By making the first electrodes 41 of at least two light-emitting devices F located in the sub-display area A2 of the display panel 10 electrically connected through the same first through-hole 511 and the first conductive layer 21, the first electrodes 41 of at least two light-emitting devices F located in the sub-display area A2 of the display panel 10 can share the same first through-hole 511 and the first conductive layer 21 for electrical connection. This helps to reduce the number of first through-holes 511 in the sub-display area A2 of the display panel 10, and thus helps to increase the wiring space in the sub-display area A2 of the display panel 10. This can increase the first length L1 corresponding to the light-emitting device F in the display panel 10, making the first length L1 corresponding to the light-emitting device F in the display panel 10 larger. Consequently, in the orthographic projection onto the substrate 1 in the display panel 10, the boundary of the first through-hole 511 corresponding to the light-emitting device F in the display panel 10 (i.e., the boundary of the second opening 511b of the first through-hole 511) and the first light-emitting device in the same light-emitting device are more closely aligned. The minimum distance between the boundary of the pixel opening 61 in the pixel definition layer 6 corresponding to the light-emitting device F on the reference line C is relatively large. That is, the distance between the first through hole 511 corresponding to the light-emitting device F in the display panel 10 and the pixel opening 61 in the pixel definition layer 6 corresponding to the same light-emitting device F is relatively large. This can reduce the proportion of the overlapping area 41c of the effective light-emitting portion 41b and the first part 41a of the first electrode 41 in the effective light-emitting portion 41b of the first electrode 41 in the light-emitting device F. This can further reduce the impact of the overlapping area 41c of the effective light-emitting portion 41b and the first part 41a of the first electrode 41 on the flatness of the effective light-emitting portion 41b of the first electrode 41. This is beneficial to improving the flatness of the effective light-emitting portion 41b of the first electrode 41 in the light-emitting device F and to improving the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears red, blue, or purple) can be reduced, which helps to improve the display uniformity of the display panel 10 and thus improve the display effect of the display panel 10.

[0321] For example, please continue to refer to Figures 31 and 32. The first electrode 41 located in the two light-emitting devices F in the sub-display area A2 of the display panel 10 can be electrically connected through the same first through hole 511 and the first conductive layer 21.

[0322] Alternatively, the first electrode 41 located in one or more (more than two) light-emitting devices F in the sub-display area A2 of the display panel 10 can be electrically connected through the same first through hole 511 and the first conductive layer 21.

[0323] For example, please continue to refer to Figures 31 and 32. When the first electrodes 41 in the two light-emitting devices F located in the sub-display area A2 of the display panel 10 pass through the same first through hole 511 and are electrically connected to the first conductive layer 21, the first electrodes 41 in the two light-emitting devices F can be located on opposite sides of the first through hole 511.

[0324] The following provides a detailed description of Embodiment Six of this disclosure.

[0325] Example 6: As shown in Figure 33, Figure 33 is a flowchart of a method for manufacturing a display panel 10 according to some embodiments. It should be noted that the method for manufacturing the display panel 10 shown in Figure 33 is not exclusive, and other steps may be performed before, after, or between any step in the method for manufacturing the display panel 10 shown in Figure 33.

[0326] The method for preparing the display panel 10 includes steps S1 to S4.

[0327] S1: As shown in Figure 34, which is a structural diagram of the display panel 10 corresponding to step S1 in the flowchart of the fabrication method of the display panel 10 in Figure 33, a first conductive layer 21 is formed on one side of the substrate 1.

[0328] S2: As shown in Figure 35, which is a structural diagram of the display panel 10 corresponding to step S2 in the flowchart of the fabrication method of the display panel 10 in Figure 33, a first planarization layer 51 is formed on the side of the first conductive layer 21 away from the substrate 1. In the region 5M where the first via is to be formed in the first planarization layer 51, the surface 51a of the first planarization layer 51 away from the substrate 1 protrudes towards the side away from the substrate 1.

[0329] S3: As shown in Figure 36, which is a structural diagram of the display panel 10 corresponding to step S3 in the flowchart of the fabrication method of the display panel 10 in Figure 33, a first through-hole 511 is formed in the first planarization layer 51.

[0330] S3: As shown in Figure 37, which is a structural diagram of the display panel 10 corresponding to step S4 in the flowchart of the fabrication method of the display panel 10 in Figure 33, a first electrode layer 4 is formed on the side of the first planarization layer 51 away from the substrate 1. The first electrode layer 4 includes first electrodes 41 of a plurality of light-emitting devices F, and the first electrode 41 located in the sub-display area A2 is connected to the first conductive layer 21 through the first through hole 511.

[0331] When forming the first planarization layer 51 within the display panel 10, by making the surface 51a of the first planarization layer 51 away from the substrate 1 protrude toward the side away from the substrate 1 within the region 5M where the first through-hole is to be formed in the first planarization layer 51, the material loss of the first planarization layer 51 at the sidewall 511c of the first through-hole 511 can be partially offset when the first through-hole 511 is formed within the first planarization layer 51. This results in the sidewall 511c of the first through-hole 511 being arc-shaped and protruding toward the interior of the first through-hole 511 in a cross-section parallel to the third direction (i.e., the thickness direction of the display panel 10). By improving the flatness of the portion of the sidewall 511c of the first through-hole 511 adjacent to the surface 51a of the first planarization layer 51 away from the substrate 1, the flatness of the portion of the first electrode 41 (i.e., the first part 41a of the first electrode 41) covering the sidewall 511c of the first through-hole 511 can be improved. This results in a higher flatness of the overlapping area 41c of the effective light-emitting portion 41b of the first electrode 41 and the first part 41a of the first electrode 41, thereby improving the flatness of the effective light-emitting portion 41b of the first electrode 41 and improving the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purple) can be reduced, which helps to improve the display uniformity of the display panel 10 and thus improves the display effect of the display panel 10.

[0332] For example, the first planarization layer 51 can be processed by a half-tone mask (HTM) process, so that within the region 5M in which the first via is to be formed in the first planarization layer 51, the surface 51a of the first planarization layer 51 away from the substrate 1 protrudes toward the side away from the substrate 1.

[0333] The aforementioned "Half-tone Mask (HTM) process" is a mask technology that can simulate continuous grayscale images. It uses dots of different sizes, densities, or shapes to adjust the light intensity distribution transmitted through the mask, thereby controlling the thickness or concentration of the material in the exposed area to prepare a gradient film layer.

[0334] It should be noted that the above description only refers to Figures 14-37 to illustrate Embodiment 1-6 of this disclosure. However, the embodiments in this disclosure are not limited to these. Any two or more embodiments in Embodiment 1-6 can be arbitrarily combined to form new embodiments.

[0335] For example, Embodiment 1 can be combined with any one or more embodiments from Embodiments 2 to 6 to further improve the light emission symmetry of the light-emitting device F located in the sub-display area A2 of the display panel 10. When the human eye views the display panel 10 at an angle, the probability of color difference between the main display area A1 and the sub-display area A2 of the display panel 10 (e.g., the image displayed in the sub-display area A2 of the display panel 10 appears reddish, bluish, or purplish) can be further reduced, which is beneficial to further improving the display uniformity of the display panel 10, and thus further improving the display effect of the display panel 10.

[0336] Specifically, please refer to Figure 38, which is a film structure diagram of a partial area of ​​the sub-display area A2 of the display panel 10 according to some embodiments. Taking the combination of Embodiment 1 and Embodiment 5 as an example, the display panel 10 includes a support portion 8 located in the sub-display area A2 of the display panel 10. A first planarization layer 51 in the display panel 10 covers the support portion 8. The support portion 8 is disposed near the first through hole 511 in the first planarization layer 51. At the same time, the support portion 8 is located on the side of the first through hole 511 in the first planarization layer 51 near the center of the first electrode 41 in the light-emitting device F. At least two first electrodes 41 in the light-emitting devices F located in the sub-display area A2 of the display panel 10 can be electrically connected to the first conductive layer 21 through the same first through hole 511.

[0337] For example, please continue to refer to FIG38, the first electrode 41 in the two light-emitting devices F located in the sub-display area A2 of the display panel 10 can be electrically connected through the same first through hole 511 and the first conductive layer 21.

[0338] Alternatively, the first electrode 41 within a plurality (more than two) of the light-emitting devices F in the sub-display area A2 of the display panel 10 may be electrically connected through the same first through hole 511 and the first conductive layer 21.

[0339] For example, the support portion 8 within the display panel 10 may be disposed around the first through hole 511.

[0340] For example, please continue to refer to FIG38. When the display panel 10 includes a support portion 8 and the first electrode 41 in the two light-emitting devices F located in the sub-display area A2 of the display panel 10 passes through the same first through hole 511 and is electrically connected to the first conductive layer 21, the two support portions 8 can be located on opposite sides of a first through hole 511.

[0341] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display panel comprising a main display area and a secondary display area, the main display area surrounding at least a portion of the secondary display area; The display panel includes light-emitting devices of at least one color located in the main display area and the sub-display area. The effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the main display area is greater than the effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the sub-display area. The display panel also includes: Substrate; A first conductive layer is located on one side of the substrate; The first planarization layer is located on the side of the first conductive layer away from the substrate; The first planarization layer is provided with a first through hole; A first electrode layer is located on the side of the first planarization layer away from the substrate; the first electrode layer includes a first electrode of the light-emitting device of the at least one color; The first electrode of the light-emitting device of the at least one color located in the sub-display area is electrically connected through the first through hole and the first conductive layer; A support portion is located in the sub-display area; the first planarization layer covers the support portion, the support portion is disposed near the first through hole, and the support portion is located on the side of the first through hole near the center of the first electrode; the material of the support portion is different from the material of the first planarization layer.

2. The display panel according to claim 1, wherein, The support portion is embedded in the first planarization layer, and there is a gap between the support portion and the first conductive layer, and between the support portion and the first electrode, along the thickness direction of the display panel.

3. The display panel according to claim 1, wherein, The support portion is in contact with the first conductive layer.

4. The display panel according to claim 3, wherein, The material of the support portion is the same as that of the first conductive layer, and the support portion and the first conductive layer are an integral structure.

5. The display panel according to any one of claims 1 to 4, wherein, The material of the support includes at least one of metals and metal oxides.

6. The display panel according to any one of claims 1 to 5, wherein, The support portion surrounds at least a portion of the first through hole.

7. The display panel according to any one of claims 1 to 6, wherein, The first via has a first opening located on the side surface of the first planarization layer away from the substrate, and a second opening located on the side surface of the first planarization layer close to the substrate, wherein the area of ​​the first opening is larger than the area of ​​the second opening; In a projection onto the substrate, at least a portion of the support is located between the boundary of the first opening and the boundary of the second opening.

8. The display panel according to any one of claims 1 to 7, wherein, The display panel further includes a pixel definition layer, which is located on the side of the first electrode layer away from the substrate, and the pixel definition layer has pixel openings; The first via has a first opening located on the side surface of the first planarization layer away from the substrate, and a second opening located on the side surface of the first planarization layer close to the substrate, wherein the area of ​​the first opening is larger than the area of ​​the second opening; In a normal projection onto the substrate, at least a portion of the support is located between the boundary of the second opening and the boundary of the pixel opening.

9. The display panel according to claim 8, wherein, A straight line passing through the center of the first through hole and along a preset direction is a reference line, and the preset direction is the direction in which the main body and the connecting part of the first electrode are connected; The first through hole's boundary intersects the reference line at a first intersection point and a second intersection point, respectively, with the first intersection point being farther from the pixel opening than the second intersection point; the pixel opening's boundary intersects the reference line at a third intersection point and a fourth intersection point, with the third intersection point being closer to the first through hole than the fourth intersection point; The distance between the second intersection point and the third intersection point is a first length, and the distance between the third intersection point and the fourth intersection point is a second length; The light-emitting device of at least one color includes a first color light-emitting device, and the second length corresponding to the first color light-emitting device is smaller than the second length corresponding to other color light-emitting devices. The support portion includes a first support portion, which is disposed near the first through hole corresponding to the first electrode in the first color light-emitting device.

10. The display panel according to claim 9, wherein, The light-emitting device of at least one color further includes a light-emitting device of a second color, and the support portion further includes a second support portion, which is disposed near the first through hole corresponding to the first electrode in the second color light-emitting device. The second length corresponding to the first color light-emitting device is smaller than the second length corresponding to the second color light-emitting device; The dimension of the first support portion along the preset direction axis is greater than the dimension of the second support portion along the preset direction axis.

11. The display panel according to claim 9 or 10, wherein, The first length is L1, and the second length is L2; L1 is greater than or equal to 7 μm; or, L1 is less than 7μm, L2 = n × L1 + m, -1.5 ≥ n ≥ -3, 30 ≥ m ≥ 20.

12. The display panel according to any one of claims 9-11, wherein, The light-emitting devices of at least one color located in the sub-display area are arranged in an array along the row and column directions; Along the column direction, the first through-holes corresponding to the first electrodes in two adjacent rows of the first color light-emitting devices are located between the pixel openings corresponding to the first electrodes in two adjacent rows of the first color light-emitting devices; or, Along the row direction, the first through holes corresponding to the first electrodes in two adjacent columns of the first color light-emitting devices are located between the pixel openings corresponding to the first electrodes in two adjacent columns of the first color light-emitting devices.

13. The display panel according to claim 12, wherein, The light-emitting device of at least one color further includes a light-emitting device of a second color; Along the column direction, the first through-holes corresponding to the first electrodes in two adjacent rows of the second color light-emitting devices are located between the pixel openings corresponding to the first electrodes in two adjacent rows of the second color light-emitting devices; or, Along the row direction, the first through holes corresponding to the first electrodes in two adjacent columns of the second color light-emitting devices are located between the pixel openings corresponding to the first electrodes in two adjacent columns of the second color light-emitting devices.

14. The display panel according to any one of claims 8-13, wherein, The inner diameters of the pixel openings are not completely equal along different axial directions, and the pixel openings have the maximum inner diameter value along the axis of a preset direction; the preset direction is the direction in which the main body and the connecting part of the first electrode are connected.

15. The display panel according to any one of claims 1-14, wherein, At least two of the first electrodes located in the sub-display area are electrically connected through the same first through-hole and the first conductive layer.

16. The display panel according to claim 15, wherein, The two first electrodes pass through the same first through hole and are electrically connected to the first conductive layer, and the two first electrodes are located on opposite sides of the first through hole.

17. The display panel according to claim 16, wherein, The support portion is disposed around the first through hole; or... The number of the support parts is two, and the two support parts are located on opposite sides of a first through hole.

18. The display panel according to any one of claims 1-17, further comprising: The second conductive layer is located on the side of the first conductive layer that is closer to the substrate; The second planarization layer is located between the second conductive layer and the first conductive layer; A first pixel circuit is located in the main display area, and at least one light-emitting device of a certain color in the main display area is electrically connected to the corresponding first pixel circuit; the light-emitting device of at least one color in the main display area overlaps with the corresponding first pixel circuit in the thickness direction of the display panel. The second pixel circuit is located in the main display area, and at least one color light-emitting device located in the sub-display area is electrically connected to the corresponding second pixel circuit through at least one conductive line in the first conductive layer and / or one conductive line in the second conductive layer; the light-emitting device of at least one color located in the sub-display area does not overlap with the corresponding second pixel circuit in the thickness direction of the display panel; or... The second pixel circuit is located in the sub-display area, and at least one light-emitting device of a certain color located in the sub-display area is electrically connected to the corresponding second pixel circuit through at least the conductive part in the first conductive layer and / or the conductive part in the second conductive layer; the light-emitting device of at least one color located in the sub-display area overlaps with the corresponding second pixel circuit in the thickness direction of the display panel.

19. A display panel comprising a main display area and a secondary display area, the main display area surrounding at least a portion of the secondary display area; The display panel includes light-emitting devices of at least one color located in the main display area and the sub-display area. The effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the main display area is greater than the effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the sub-display area. The display panel also includes: Substrate; A first conductive layer is located on one side of the substrate; The first planarization layer is located on the side of the first conductive layer away from the substrate; The first planarization layer is provided with a first through hole; A first electrode layer is located on the side of the first planarization layer away from the substrate; the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color; The first electrode of the light-emitting device of the at least one color located in the sub-display area is connected through the first through hole and the first conductive layer; A pixel definition layer is located on the side of the first electrode layer away from the substrate; the pixel definition layer has pixel openings; The first electrode includes a main body and a connecting part, wherein the main body and the pixel opening overlap in the thickness direction of the display panel; the connecting part is electrically connected to the main body and passes through the first through hole and is electrically connected to the first conductive layer; A straight line passing through the center of the first through hole and along a preset direction is a reference line, and the preset direction is the direction in which the main body and the connecting part of the first electrode are connected; The first through hole's boundary intersects the reference line at a first intersection point and a second intersection point, respectively, with the first intersection point being farther from the pixel opening than the second intersection point; the pixel opening's boundary intersects the reference line at a third intersection point and a fourth intersection point, with the third intersection point being closer to the first through hole than the fourth intersection point; The distance between the second intersection point and the third intersection point is a first length, and the distance between the third intersection point and the fourth intersection point is a second length; The first length is L1, and the second length is L2; ​​L1 is greater than or equal to 7 μm; or, L1 is less than 7μm, L2 = n × L1 + m, -1.5 ≥ n ≥ -3, 30 ≥ m ≥ 20.

20. A display panel comprising a main display area and a secondary display area, the main display area surrounding at least a portion of the secondary display area; The display panel includes light-emitting devices of at least one color located in the main display area and the sub-display area. The effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the main display area is greater than the effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the sub-display area. The display panel also includes: Substrate; A first conductive layer is located on one side of the substrate; The first planarization layer is located on the side of the first conductive layer away from the substrate; The first planarization layer is provided with a first through hole; A first electrode layer is located on the side of the first planarization layer away from the substrate; the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color; The first electrode of the light-emitting device of at least one color located in the sub-display area is connected through the first through hole and the first conductive layer; the first electrode includes a main body and a connecting part, the connecting part is electrically connected to the main body and is electrically connected through the first through hole and the first conductive layer; A pixel definition layer is located on the side of the first electrode layer away from the substrate; the pixel definition layer has a pixel opening, and the main body and the pixel opening overlap in the thickness direction of the display panel; the inner diameters of the pixel openings along different axial directions are not completely equal, and the pixel openings have a maximum inner diameter value along the axis of the preset direction; the preset direction is the direction in which the main body and the connecting part of the first electrode are connected.

21. A display panel comprising a main display area and a secondary display area, the main display area surrounding at least a portion of the secondary display area; The display panel includes light-emitting devices of at least one color located in the main display area and the sub-display area. The effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the main display area is greater than the effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the sub-display area. The display panel also includes: Substrate; A first conductive layer is located on one side of the substrate; The first planarization layer is located on the side of the first conductive layer away from the substrate; The first planarization layer is provided with a first through hole; A first electrode layer is located on the side of the first planarization layer away from the substrate; the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color; The first electrodes of at least two light-emitting devices of at least one color located in the sub-display area are electrically connected through the same first through-hole and the first conductive layer.

22. A display panel comprising a main display area and a secondary display area, the main display area surrounding at least a portion of the secondary display area; The display panel includes light-emitting devices of at least one color located in the main display area and the sub-display area. The effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the main display area is greater than the effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the sub-display area. The display panel also includes: Substrate; A first conductive layer is located on one side of the substrate; The first planarization layer is located on the side of the first conductive layer away from the substrate; The first planarization layer is provided with a first through hole; A first electrode layer is located on the side of the first planarization layer away from the substrate; the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color; The first electrode of the light-emitting device of the at least one color located in the sub-display area is connected through the first through hole and the first conductive layer; A pixel definition layer is located on the side of the first electrode layer away from the substrate; the pixel definition layer has a pixel opening, and the first electrode and the pixel opening overlap in the thickness direction of the display panel; The light-emitting devices of at least one color located in the sub-display area are arranged in an array along the row and column directions; the light-emitting devices of at least one color include light-emitting devices of a first color; Along the column direction, the first through holes corresponding to the first electrodes in two adjacent rows of the first color light-emitting devices are located at... Between the pixel openings corresponding to the first electrodes within two adjacent rows of the first color light-emitting devices; or... Along the row direction, the first through holes corresponding to the first electrodes in two adjacent columns of the first color light-emitting devices are located between the pixel openings corresponding to the first electrodes in two adjacent columns of the first color light-emitting devices.

23. A method for manufacturing a display panel, the display panel comprising a main display area and a sub-display area, the main display area surrounding at least a portion of the sub-display area; The display panel includes light-emitting devices of at least one color located in the main display area and the sub-display area. The effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the main display area is greater than the effective light-emitting area of ​​one of the light-emitting devices of the at least one color located in the sub-display area. The method for manufacturing the display panel includes: A first conductive layer is formed on one side of the substrate; A first planarization layer is formed on the side of the first conductive layer away from the substrate; In the area where the first via is to be formed in the first planarization layer, the surface of the first planarization layer away from the substrate protrudes toward the side away from the substrate; A first through-hole is formed within the first planarization layer; A first electrode layer is formed on the side of the first planarization layer away from the substrate; the first electrode layer includes first electrodes of a plurality of light-emitting devices of at least one color; The first electrode of the light-emitting device of at least one color located in the sub-display area is electrically connected through the first through hole and the first conductive layer.

24. A display device, comprising: The display panel as described in any one of claims 1 to 22; An optical device is located on the non-display side of the display panel and overlaps with a sub-display area within the display panel in the thickness direction of the display panel.

Images