Organic electroluminescent device, preparation method thereof and electronic device

Abstract

The application belongs to the technical field of organic semiconductor, and provides an organic electroluminescent device, a preparation method thereof and an electronic device. In the organic electroluminescent device, a first electrode layer is arranged on a substrate, an anti-static lead wire is arranged on the substrate and connected with the first electrode layer, and is used for adsorbing static electricity on the organic electroluminescent device and discharging static electricity; an organic light-emitting layer is arranged on the first electrode layer, and a second electrode layer is arranged on the organic light-emitting layer. The application can prevent static electricity from being discharged in a light-emitting area of a screen body, so as to protect the screen body from being damaged by static discharge.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of organic semiconductor, in particular to an organic electroluminescent device, a preparation method thereof and an electronic device. BACKGROUND

[0002] OLED (Organic Light-Emitting Diode) products are prone to produce problems such as black spots and bright spots during production and use, and one of the important reasons is static electricity. Static electricity is adsorbed on the surface of the product, reaches the inside of the screen through electrode lines or human body contact, and acts on the device structure, causing black spots or bright spots, reducing the reliability of the device and the service life of the screen.

[0003] During the use of OLED, whether it is human body or equipment discharging to OLED, the harm of static electricity objectively exists. At present, in order to realize the diversity of OLED screen lighting effect and the interactivity of information, the OLED screen is usually designed by partitioning, for example, patterning the electrode on the substrate, and then connecting to the electrode binding area outside the package through the electrode lead. In order to improve the aperture ratio of the screen, the electrode lead is usually designed to be relatively narrow and small, which causes the screen to be easily broken down during static discharge, causing short circuit or open circuit of the screen, and forming failure. SUMMARY

[0004] Therefore, the embodiments of the present application provide an organic electroluminescent device, a preparation method thereof and an electronic device, which can prevent static electricity from being released in the screen light-emitting area, so as to protect the screen from being damaged by static discharge.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0006] In a first aspect, the embodiments of the present application provide an organic electroluminescent device, which comprises a substrate, a first electrode layer, an anti-static lead, an organic light-emitting layer and a second electrode layer. The first electrode layer is arranged on the substrate, the anti-static lead is arranged on the substrate and connected with the first electrode layer, and is used for adsorbing static electricity on the organic electroluminescent device and discharging static electricity. The organic light-emitting layer is arranged on the first electrode layer, and the second electrode layer is arranged on the organic light-emitting layer.

[0007] In the embodiments of the present application, the anti-static lead is arranged on the substrate, and the anti-static lead is connected with the first electrode layer and used for adsorbing static electricity on the organic electroluminescent device and discharging static electricity. Therefore, when static electricity is adsorbed on the surface of the screen, the static electricity can be preferentially gathered and released at the anti-static lead. After the static electricity is released at the anti-static lead, the anti-static lead may be burned out, but the static electricity can be prevented from being released in the screen light-emitting area, so as to achieve the effect of protecting the screen light-emitting area from being damaged by static discharge.

[0008] For example, the material of the anti-static lead can be a conductive material, for example, the material of the anti-static lead can be the same as the material of the first electrode layer, so as to facilitate the manufacture of the above device.

[0009] In the embodiments of the present application, an insulating layer can be covered on the anti-static lead to prevent the anti-static lead from contacting other layers, so as to prevent the electrostatic discharge from damaging other layers during the electrostatic discharge process.

[0010] In some implementations, the first electrode layer includes at least one electrode region, the electrode region is connected to the bonding area through an electrode lead, the anti-static lead is connected to at least part of the at least one electrode region, and the width of the anti-static lead of each electrode region is less than the width of the electrode lead.

[0011] In some embodiments, the anti-static lead connected to the electrode region can be that the anti-static lead is located beside the electrode region and connected to the electrode region, and the anti-static lead is disconnected at a certain place; and / or the anti-static lead is connected to the electrode lead.

[0012] In one scenario, a set of anti-static leads can be arranged beside each electrode region, each electrode region corresponds to a light-emitting region of the screen body, so as to protect each light-emitting region of the screen body from static electricity, and the static charge on the screen body can be gathered on the nearby anti-static lead.

[0013] In another scenario, a set of anti-static leads can be arranged between any two adjacent electrode regions, each electrode region corresponds to a light-emitting region of the screen body, so as to protect each light-emitting region of the screen body from static electricity, and the static charge on the screen body can be gathered on the nearby anti-static lead.

[0014] When there are more static charges on the surface of the screen body, the static charges can be gathered on the nearby anti-static lead, so as to concentrate more static charges on the multiple sets of anti-static leads, thereby reducing the damage of electrostatic discharge to the anti-static lead, and the working life of the anti-static lead can be improved to a certain extent.

[0015] In another scenario, the anti-static lead can be arranged beside part of the electrode regions. For example, the anti-static lead can be arranged beside a specific electrode region, so that the anti-static lead can be uniformly distributed on the substrate, or the anti-static lead can be distributed at a specific position on the substrate.

[0016] In another scenario, the anti-static lead can be connected to the electrode lead, and the anti-static lead connected to the electrode lead can be used to protect each light-emitting region of the screen body from static electricity, so that the static charge on the screen body can be gathered on the nearby anti-static lead.

[0017] In yet another implementation, the first electrode layer includes at least one electrode region connected to the bonding region through an electrode lead, each electrode region includes a plurality of electrode units, an auxiliary electrode is arranged in the plurality of electrode regions, each electrode unit is directly connected to the auxiliary electrode or connected to the auxiliary electrode through a connecting unit, and an anti-static lead is arranged beside each electrode unit, the width of the anti-static lead is less than the width of the electrode lead, the width of the connecting unit, and the width of the auxiliary electrode. The anti-static lead is connected to the auxiliary electrode, and / or the anti-static lead is connected to the plurality of electrode units.

[0018] In one scenario, a set of anti-static leads can be arranged beside each electrode unit, each electrode unit corresponds to one light emitting unit in a light emitting region, the anti-static lead can be connected to the auxiliary electrode, or the anti-static lead can be connected to the electrode unit, so as to provide anti-static protection for each light emitting unit in each light emitting region, and the static charge on the screen body can be gathered to the nearby anti-static lead.

[0019] In another scenario, a set of anti-static leads can be arranged between any two adjacent electrode units, so as to provide anti-static protection for each light emitting unit in each light emitting region, and the static charge on the screen body can be gathered to the nearby anti-static lead.

[0020] In yet another scenario, the anti-static leads can be arranged beside part of the electrode units. For example, the anti-static leads can be arranged beside specific electrode units, so that the anti-static leads can be uniformly distributed on the substrate, or the anti-static leads can be distributed at specific positions on the substrate.

[0021] In yet another implementation, in order to strengthen the anti-static effect of the screen body, the anti-static leads can be arranged between the plurality of electrode regions and between the plurality of electrode units, and each anti-static lead can include a plurality of anti-static leads arranged side by side. In this way, when one anti-static lead is burned out due to static discharge, the other anti-static leads can continue to provide anti-static function for each light emitting region and each light emitting unit of the screen body.

[0022] In some embodiments, the anti-static lead can be provided with a tip. The anti-static lead provided with the tip can more easily gather the static charge adsorbed on the surface of the screen body to the anti-static lead for static discharge.

[0023] The shape of the tip can be a cone, a pyramid, or other shapes, which are not limited.

[0024] In some embodiments, each anti-static lead can have a multi-segment structure, and each segment is provided with a tip. The anti-static lead provided with the multi-segment structure can independently realize static discharge, thereby increasing the service life of the anti-static lead.

[0025] In a second aspect, the embodiments of the present application provide a preparation method of an organic electroluminescent device, comprising: forming a first electrode layer on a substrate; forming an anti-static lead wire on the substrate, the anti-static lead wire being connected with the first electrode layer, and used for adsorbing static electricity on the organic electroluminescent device and discharging static electricity; forming an organic light-emitting layer on the first electrode layer; and forming a second electrode layer on the organic light-emitting layer.

[0026] In some embodiments, the first electrode layer comprises at least one electrode region, the electrode region is connected to the bonding area through an electrode lead wire, the anti-static lead wire is connected with at least part of the at least one electrode region, and the width of the anti-static lead wire of each electrode region is less than the width of the electrode lead wire.

[0027] In some embodiments, the anti-static lead wire is connected with the electrode region, which can be that the anti-static lead wire is located beside the electrode region, connected with the electrode region, and the anti-static lead wire is disconnected at a certain place; and / or, the anti-static lead wire is connected with the electrode lead wire.

[0028] In some other embodiments, the first electrode layer comprises at least one electrode region, the electrode region is connected to the bonding area through an electrode lead wire, each electrode region comprises a plurality of electrode units, an auxiliary electrode is arranged in the plurality of electrode regions, each electrode unit is directly connected with the auxiliary electrode or connected with the auxiliary electrode through a connecting unit, the anti-static lead wire is located beside the electrode unit, the width of the anti-static lead wire of each electrode unit is less than the width of the electrode lead wire, the width of the connecting unit and the width of the auxiliary electrode. The anti-static lead wire is connected with the auxiliary electrode; and / or, the anti-static lead wire is connected with the plurality of electrode units.

[0029] In a third aspect, the embodiments of the present application provide an electronic device comprising the organic electroluminescent device according to any one of the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative labor.

[0031] Figure 1 is a partial structure schematic diagram of an organic electroluminescent device provided by the embodiments of the present application;

[0032] Figure 2 is another partial structure schematic diagram of an organic electroluminescent device provided by the embodiments of the present application;

[0033] Figure 3 is a structural schematic diagram of still another organic electroluminescent device provided by an embodiment of the present application;

[0034] Figure 4 is a structural schematic diagram of an organic electroluminescent device having multiple electrode regions;

[0035] Figure 5 is a partial structural schematic diagram of an organic electroluminescent device based on Figure 4 ;

[0036] Figure 6 is a partial structural schematic diagram of still another organic electroluminescent device based on Figure 4 ;

[0037] Figure 7 is a partial structural schematic diagram of still another organic electroluminescent device based on Figure 4 ;

[0038] Figure 8 is a structural schematic diagram of an electrode region provided by an embodiment of the present application;

[0039] Figure 9 is a structural schematic diagram of an electrode region provided by an embodiment of the present application;

[0040] Figure 10 is a structural schematic diagram of an electrode region provided by an embodiment of the present application;

[0041] Figure 11 is a structural schematic diagram of an electrode region provided by an embodiment of the present application;

[0042] Figure 12 is a structural schematic diagram of an electrode region provided by an embodiment of the present application;

[0043] Figure 13 is a flow schematic diagram of a preparation method of an organic electroluminescent device provided by an embodiment of the present application;

[0044] FIGS. 14(a), 14(b) and 14(c) are preparation process schematic diagrams of an organic electroluminescent device provided by an embodiment of the present application;

[0045] FIGS. 15(a) and 15(b) are preparation process schematic diagrams of an organic electroluminescent device provided by an embodiment of the present application;

[0046] FIGS. 16(a) and 16(b) are preparation process schematic diagrams of an organic electroluminescent device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0047] The application will be described in greater detail in connection with specific embodiments. The following embodiments will help those skilled in the art further understand the role of the application, but do not limit the application in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the application. These all belong to the protection scope of the application.

[0048] It should be understood that when used in the specification and the appended claims of the application, the term "comprising" indicates the presence of described features, whole, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or sets thereof.

[0049] It should also be understood that the term "and / or" used in the specification and the appended claims of the application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0050] In the description of the specification and the appended claims of the application, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] In the description of the specification, the reference "one embodiment" or "some embodiments" and the like means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0052] In addition, "a plurality of" mentioned in the embodiments of the application should be interpreted as two or more.

[0053] In order to make the purpose, technical scheme and advantages of the application more clear, specific embodiments will be described below with reference to the accompanying drawings.

[0054] To solve the foregoing problems, the related art usually adds an electrostatic protection circuit in the external circuit of the screen body, or adds a pressure-sensitive circuit in the screen body to reduce or prevent the damage caused by electrostatic discharge to the screen body. For the way of adding a pressure-sensitive circuit in the screen body, the pressure-sensitive circuit is usually connected in parallel with the light-emitting area, and the preparation of the pressure-sensitive circuit in the screen body greatly increases the preparation difficulty of the screen body.

[0055] Based on this, the embodiment of the present application provides an organic electroluminescent device, comprising a substrate, a first electrode layer, an anti-static lead, an organic light-emitting layer and a second electrode layer. The first electrode layer is arranged on the substrate, the anti-static lead is arranged on the substrate and connected with the first electrode layer, and is used for adsorbing static electricity on the organic electroluminescent device and discharging static electricity. The organic light-emitting layer is arranged on the first electrode layer, and the second electrode layer is arranged on the organic light-emitting layer.

[0056] In the embodiment of the present application, the anti-static lead is arranged on the substrate, the anti-static lead is connected with the first electrode layer, and is used for adsorbing static electricity on the organic electroluminescent device and discharging static electricity. Therefore, when the static electricity is adsorbed on the surface of the screen body, the static electricity can be preferentially gathered and released at the anti-static lead with a smaller width. After the static electricity is released at the anti-static lead, the anti-static lead may be burned, but the static electricity can be prevented from being released in the light-emitting area of the screen body, so as to achieve the effect of protecting the static discharge from damaging the light-emitting area of the screen body. Moreover, compared with the related art, the difficulty of preparing the anti-static lead on the substrate is much smaller than the difficulty of preparing the pressure-sensitive circuit in the screen body.

[0057] Figure 1 Part of the structure of an organic electroluminescent device provided by the embodiment of the present application is shown. Referring to FIG. 1, Figure 1 The organic electroluminescent device can include a substrate 100, a first electrode layer (not shown in the figure), a first anti-static lead 301, an organic light-emitting layer (not shown in the figure) and a second electrode layer (not shown in the figure). The first electrode layer is arranged on the substrate 100, the first anti-static lead 301 is arranged on the substrate 100, the organic light-emitting layer is arranged on the first electrode layer, and the second electrode layer is arranged on the organic light-emitting layer. The first electrode layer includes an electrode area 210, the electrode area 210 is connected to a bonding area through an electrode lead 220, the first anti-static lead 301 is connected with the electrode area 210, and the width of the first anti-static lead 301 is smaller than the width of the electrode lead 220.

[0058] In Figure 1 , the first anti-static lead 301 is connected with the electrode area 210, and the first anti-static lead 301 is disconnected at a certain place, and is used for discharging static electricity. Therefore, when the static electricity is adsorbed on the surface of the screen body, the static electricity can be preferentially gathered and released at the first anti-static lead 301. After the static electricity is released at the disconnected place of the first anti-static lead 301, the first anti-static lead 301 may be burned, but the static electricity can be prevented from being released in the light-emitting area of the screen body, so as to achieve the effect of protecting the static discharge from damaging the light-emitting area of the screen body.

[0059] For example, the first anti-static lead 301 can be arranged beside the electrode area 210 and connected with the electrode area 210. For example, the first anti-static lead 301 can be arranged beside each of the electrode areas 210, and the electrode area 220 corresponds to the light emitting area of the screen body, so as to protect the light emitting area of the screen body from static electricity, and make the static electricity on the screen body gather on the first anti-static lead 301.

[0060] Optionally, a plurality of first anti-static leads 301 can be arranged beside the electrode area 220 in parallel. When there is more static electricity on the surface of the screen body, the static electricity can gather on the first anti-static lead 301, so as to gather more static electricity on the plurality of first anti-static leads 301, thereby reducing the damage of static discharge to the first anti-static lead 301, and improving the service life of the first anti-static lead 301 to a certain extent.

[0061] In addition, the first anti-static lead 301 can also be arranged at a plurality of positions around the electrode area 220, and at least one first anti-static lead 301 is arranged at each position, which can also reduce the damage of static discharge to the first anti-static lead 301, and improve the service life of the first anti-static lead 301 to a certain extent.

[0062] As shown in Figure 1 , the first anti-static lead 301 can be provided with a sharp end. The first anti-static lead 301 is provided with a sharp end, which can more easily gather the static electricity adsorbed on the surface of the screen body to the first anti-static lead 301 for static discharge.

[0063] The shape of the sharp end can be a cone, a pyramid or other shapes, which are not limited.

[0064] For example, the material of the first anti-static lead 301 is a conductive material. For example, the material of the first anti-static lead 301 can be the same as that of the first electrode layer, so as to facilitate the manufacture of the above device.

[0065] In addition, in order to prevent the first anti-static lead 301 from being damaged by static discharge during static discharge, an insulating layer can be arranged on the first anti-static lead 301 to prevent the first anti-static lead 301 from contacting the organic light emitting layer and / or the second electrode layer.

[0066] Figure 2 Another partial structure diagram of an organic electroluminescent device is shown. Referring to Figure 2 , Figure 2 , the difference between the organic electroluminescent device in Figure 1 and the organic electroluminescent device in is that the first anti-static lead 301 is connected with the electrode lead 220.

[0067] For example, a first antistatic lead can be provided on one side of the electrode lead 220 and connected to the electrode lead 220, or a first antistatic lead can be provided on both sides of the electrode lead 220 and connected to the electrode lead 220. The first antistatic lead can be multiple antistatic leads arranged in parallel (not shown in the figure) to reduce the damage of electrostatic discharge to a particular first antistatic lead 301, thereby improving the service life of the first antistatic lead 301 to a certain extent.

[0068] Optional, based on Figure 1 and Figure 2 To further improve the anti-static effect of the screen, the structure shown can be further enhanced by placing a device such as the electrode area 210 next to it. Figure 1 The first anti-static lead shown, and the setting as follows Figure 2 The first antistatic lead shown is connected to electrode lead 220.

[0069] Figure 3 A partial structural schematic diagram of yet another organic electroluminescent device is shown. See also Figure 3 , Figure 3 Organic electroluminescent devices and Figure 2 The difference in the organic electroluminescent devices lies in the fact that the first antistatic lead 301 has a multi-segment structure, with each segment having a pointed tip. By making the first antistatic lead 301 a multi-segment structure, each segment can independently achieve electrostatic discharge, thereby increasing the service life of the first antistatic lead.

[0070] Figure 4 A schematic diagram of an organic electroluminescent device with multiple electrode regions is shown. See also Figure 4 , Figure 4 The organic electroluminescent device may include multiple electrode regions 210, each of which can be connected to a bonding region via electrode leads 220. Figure 4 The following explanation uses four electrode regions as an example, but is not limited to this.

[0071] based on Figure 4 In some embodiments of the structure shown, the first antistatic lead can be connected to at least a portion of the electrode regions 210, and the width of the first antistatic lead in each electrode region is smaller than the width of the electrode lead 220.

[0072] for Figure 4 For any parts of the structure shown that are not described, please refer to [the relevant documentation / reference]. Figure 1 The details related to the embodiments will not be repeated here.

[0073] Figure 5 A partial structural schematic diagram of an organic electroluminescent device is shown, the structure being based on Figure 4The structure shown is implemented. See Figure 5 The first anti-static lead 301 can be arranged beside each electrode area 210, connected with the electrode area 210, and disconnected at some place for static electricity release.

[0074] For example, the first anti-static lead 301 can be arranged beside each electrode area 210, and each electrode area 210 corresponds to a light emitting area of the screen body, so as to protect each light emitting area of the screen body from static electricity, and make the static electricity on the screen body gather on the nearby first anti-static lead.

[0075] In other embodiments, the first anti-static lead 301 can be arranged beside part of the electrode areas 210 of the screen body. For example, the first anti-static lead 301 can be arranged beside specific electrode areas 210, so that the first anti-static lead 301 can be evenly distributed on the substrate 100, or the first anti-static lead 301 can be distributed at specific positions on the substrate 100, to achieve the anti-static effect of the screen body.

[0076] Figure 6 A partial structure schematic diagram of an organic electroluminescent device is shown. See Figure 6 , Figure 6 The difference between the organic electroluminescent device in Figure 5 and the organic electroluminescent device in

[0077] For example, the first anti-static lead can be arranged on one side of the electrode lead 220 of each electrode area 210 and connected with the electrode lead 220, or the first anti-static lead can be arranged on both sides of the electrode lead 220 of each electrode area 210 and connected with the electrode lead 220. The first anti-static lead can be a plurality of anti-static leads arranged in parallel (not shown in the figure), to reduce the damage of static electricity discharge to a certain first anti-static lead 301, and to improve the working life of the first anti-static lead 301 to a certain extent.

[0078] In other embodiments, the first anti-static lead can be arranged on one side or both sides of part of the electrode leads 220 and connected with the electrode leads 220. For example, the first anti-static lead 301 can be arranged on one side or both sides of specific electrode leads 220, so that the first anti-static lead 301 can be evenly distributed on the substrate 100, or the first anti-static lead 301 can be distributed at specific positions on the substrate 100, to achieve the anti-static effect of the screen body.

[0079] Optionally, based on the structures shown in Figure 5 and Figure 6 , in order to further improve the anti-static effect of the screen body, as shown in Figure 7As shown, the first anti-static lead can be provided as Figure 5 As shown, the first anti-static lead can be provided as Figure 6 As shown, the first anti-static lead can be provided as

[0080] Figure 8 A structural schematic diagram of the electrode region is shown. Referring to Figure 8 , the electrode region 210 can include a plurality of electrode units 211, and the auxiliary electrode 230 is provided in the electrode region 210, each electrode unit 211 being directly connected to the auxiliary electrode 230 or being connected to the auxiliary electrode 230 through a connecting unit 212.

[0081] In the electrode region 210 shown in Figure 8 , the electrode region 210 can be any electrode region shown in Figures 1 to 7 . The direct connection of the electrode unit 211 to the auxiliary electrode 230 can be that the electrode unit 211 does not need to be connected to the auxiliary electrode 230 through the connecting unit 212, but is directly in contact with the auxiliary electrode 230 to achieve the connection to the auxiliary electrode 230.

[0082] Based on the structure shown in Figure 8 , a second anti-static lead can be provided in the electrode region 210 to achieve the anti-static effect. For example, the second anti-static lead can be provided beside each electrode unit 211 and / or beside the auxiliary electrode 230. That is, the second anti-static lead can be connected to the auxiliary electrode 230; and / or, the second anti-static lead can be connected to the electrode unit 211.

[0083] In addition, in order to prevent the second anti-static lead 302 from causing damage to other layers during electrostatic discharge, an insulating layer can be covered on the second anti-static lead 302 to prevent the second anti-static lead 302 from contacting the organic light-emitting layer and / or the second electrode layer.

[0084] For other features of the second anti-static lead 302, please refer to the related description of the first anti-static lead 301, which will not be repeated here.

[0085] The following will be described in conjunction with the accompanying Figures 9 to 12 .

[0086] Referring to Figure 9 , the second anti-static lead 302 can be located beside the electrode unit 211 and connected to the auxiliary electrode 230, and the width of the second anti-static lead 302 of each electrode unit 211 is less than the width of the electrode lead, the width of the connecting unit 212 and the width of the auxiliary electrode 230.

[0087] Referring to Figure 10 , Figure 10 , the organic electroluminescent device in Figure 9The difference between the organic electroluminescent device in the figure and the prior art lies in that the second anti-static lead 302 is in a multi-section structure, and each section is provided with a pointed end. The second anti-static lead 302 is provided in a multi-section structure, and each section can independently realize static discharge, thereby increasing the service life of the second anti-static lead.

[0088] Referring to Figure 11 , the second anti-static lead 302 can be arranged beside each electrode unit 211, connected with the electrode unit 211, and disconnected at a certain position for static discharge.

[0089] For example, the second anti-static lead 302 can be arranged beside each electrode unit 211, and each electrode unit 211 corresponds to one light emitting pixel of the screen body, so as to realize anti-static protection for each light emitting pixel of the screen body, and make the static charge on the screen body gathered to the second anti-static lead 302 nearby.

[0090] In other embodiments, the second anti-static lead 302 can be arranged between any two adjacent electrode units 211, and the second anti-static lead 302 can be connected with the auxiliary electrode 230, or the second anti-static lead 302 can be connected with the electrode unit 211, or the second anti-static lead 302 can be connected with the connecting unit 212, so as to realize anti-static protection for each light emitting unit of each light emitting area, and make the static charge on the screen body gathered to the second anti-static lead 302 nearby.

[0091] In other embodiments, the second anti-static lead 302 can be arranged beside part of the electrode units 211 of the screen body. For example, the second anti-static lead 302 can be arranged beside a specific electrode unit 211, so that the second anti-static lead 302 can be uniformly distributed on the substrate 100, or the second anti-static lead 302 can be distributed on the substrate 100 at a specific position, so as to realize the anti-static effect of the screen body.

[0092] Optionally, based on the structure shown in Figures 8 to 11 , in order to further improve the anti-static effect of the screen body, as shown in Figure 12 , the second anti-static lead as shown in Figure 11 can be arranged, and the second anti-static lead as shown in Figure 9 or Figure 10 can be arranged.

[0093] The first anti-static lead 301 and the second anti-static lead 302 are only names for convenience of description, and do not limit the anti-static lead. The material, size and other parameters of the first anti-static lead 301 and the second anti-static lead 302 can be the same or different, and are not limited.

[0094] It should be noted that the above Figures 1 to 12 In the above, the anti-static lead is an example of a relatively regular arrangement, but the present application is not limited thereto, and the anti-static lead can play a role in static discharge. For example, the anti-static lead can be parallel to the edges of the light-emitting area 210, the electrode unit 211 and the auxiliary electrode 230, or can be at an arbitrary angle to the edges of the light-emitting area 210, the electrode unit 211 and the auxiliary electrode 230. For another example, the anti-static lead can be linear, L-shaped, or any other shape, and is not limited in this regard.

[0095] Optionally, the shapes and / or widths of the anti-static leads at various positions in the screen body can all be the same, or the shapes and / or widths of the anti-static leads at various positions in the screen body can not be exactly the same, and the skilled person can set them according to the scheme disclosed in the present application and in combination with actual needs.

[0096] The present application also provides an electronic device comprising the organic electroluminescent device described above, which has the beneficial effects of the organic electroluminescent device described above, and will not be described again here.

[0097] Figure 13 A flowchart of a method for manufacturing the organic electroluminescent device provided by the present application is shown. Referring to Figure 13 The method for manufacturing the organic electroluminescent device described above can comprise the following steps:

[0098] Step 501: forming a first electrode layer on a substrate.

[0099] For example, as shown in FIGS. 14(a) and 15(a), the first electrode layer can comprise an electrode area 210, and the number of electrode areas 210 can be one or more. The electrode area 210 is connected to the bonding area through an electrode lead 220.

[0100] For example, as shown in FIG. 16(a), the electrode area can comprise a plurality of electrode units 211, and the electrode area 210 is also provided with an auxiliary electrode 230. Each electrode unit 211 is directly connected to the auxiliary electrode 230 or is connected to the auxiliary electrode 230 through a connecting unit 212.

[0101] Step 502: forming an anti-static lead on the substrate.

[0102] The anti-static lead is connected to the first electrode layer and is used to adsorb static electricity on the organic electroluminescent device and perform static discharge.

[0103] In some embodiments, the first electrode layer comprises at least one electrode region, the anti-static lead can be connected to at least part of the electrode regions, and the width of the anti-static lead of each electrode region is less than the width of the electrode lead.

[0104] For example, the anti-static lead can be connected to the electrode region in the following ways: the anti-static lead is located beside the electrode region and connected to the electrode region, and the anti-static lead is disconnected at some point; and / or the anti-static lead is connected to the electrode lead.

[0105] In some embodiments, the first electrode layer comprises a plurality of electrode regions, the electrode regions are connected to the bonding area through the electrode lead, each electrode region comprises a plurality of electrode units, an auxiliary electrode is arranged in the electrode region, each electrode unit is directly connected to the auxiliary electrode or connected to the auxiliary electrode through a connecting unit, and the anti-static lead is located beside the electrode unit. The width of the anti-static lead of each electrode unit is less than the width of the electrode lead, the width of the connecting unit and the width of the auxiliary electrode. The anti-static lead is connected to the auxiliary electrode; and / or the anti-static lead is connected to the plurality of electrode units.

[0106] In some embodiments, as shown in FIG. 14(b), based on the structure shown in FIG. 14(a), the first anti-static lead 301 is formed beside the electrode region 210; as shown in FIG. 14(c), based on the structure shown in FIG. 14(a), the first anti-static lead 301 is formed beside the electrode lead 220.

[0107] In some embodiments, as shown in FIG. 15(b), based on the structure shown in FIG. 15(a), the first anti-static lead 301 is formed beside each electrode region 210, and the first anti-static lead 301 is formed beside the electrode lead 220 of each electrode region 210.

[0108] In some embodiments, as shown in FIG. 16(b), based on the structure shown in FIG. 16(a), the second anti-static lead 302 connected to the electrode unit 211 and the second anti-static lead 302 connected to the auxiliary electrode 230 are formed beside the electrode unit 211.

[0109] It should be noted that in the embodiments of the present application, steps 501 and 502 can be performed synchronously, or step 501 can be performed first and then step 502, or step 502 can be performed first and then step 501, which is not limited.

[0110] Step 503: forming an organic light-emitting layer on the first electrode layer.

[0111] Step 504: forming a second electrode layer on the organic light-emitting layer.

[0112] In the above embodiments, the description of each embodiment has its own focus, and the parts not described or recorded in a certain embodiment can be referred to the relevant description of other embodiments.

[0113] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. An organic electroluminescent device, characterized by comprising: The application relates to an organic electroluminescent device, which comprises the following parts: a substrate; a first electrode layer arranged on the substrate; a first anti-static lead wire arranged on the substrate and connected with the first electrode layer, used for adsorbing static electricity on the organic electroluminescent device and discharging static electricity; an organic light-emitting layer arranged on the first electrode layer; and a second electrode layer arranged on the organic light-emitting layer. The first electrode layer comprises an electrode area connected with a bonding area through an electrode lead wire, and the first anti-static lead wire is connected with the electrode area; the width of the first anti-static lead wire is smaller than that of the electrode lead wire; and the first anti-static lead wire is provided with a pointed end. The first anti-static lead wire is connected with the electrode area in the following two ways: the first anti-static lead wire is arranged beside the electrode area and connected with the electrode area, and the first anti-static lead wire is disconnected at a certain position; and / or the first anti-static lead wire is connected with the electrode lead wire. The organic electroluminescent device further comprises a second anti-static lead wire. The electrode area corresponds to a light-emitting area of a screen body, and the electrode area comprises an electrode unit and an auxiliary electrode. The second anti-static lead wire is arranged in the electrode area and connected with the electrode unit and / or the auxiliary electrode. An insulating layer is arranged on the first anti-static lead wire and / or the second anti-static lead wire. The first electrode layer comprises at least one electrode area connected with a bonding area through an electrode lead wire, and the first anti-static lead wire is connected with at least part of the at least one electrode area. The first electrode layer comprises at least one electrode area connected with a bonding area through an electrode lead wire, and each electrode area comprises a plurality of electrode units, an auxiliary electrode is arranged in the plurality of electrode areas, each electrode unit is directly connected with the auxiliary electrode or connected with the auxiliary electrode through a connecting unit, the second anti-static lead wire is arranged beside the electrode unit, and the width of the second anti-static lead wire of each electrode unit is smaller than that of the electrode lead wire, that of the connecting unit and that of the auxiliary electrode. The second anti-static lead wire is connected with the auxiliary electrode and / or connected with the plurality of electrode units. Each first anti-static lead wire and / or second anti-static lead wire has a multi-section structure, and each section is provided with a pointed end.

2. The organic electroluminescent device according to claim 1, wherein The application further relates to a manufacturing method of the organic electroluminescent device.

3. The organic electroluminescent device according to claim 1, wherein The first anti-static lead wire is connected with the electrode area in the following two ways: the first anti-static lead wire is arranged beside the electrode area and connected with the electrode area, and the first anti-static lead wire is disconnected at a certain position; and / or the first anti-static lead wire is connected with the electrode lead wire.

4. The organic electroluminescent device according to claim 1, wherein The organic electroluminescent device further comprises a second anti-static lead wire. The electrode area corresponds to a light-emitting area of a screen body, and the electrode area comprises an electrode unit and an auxiliary electrode.

5. The organic electroluminescent device according to claim 1, wherein The second anti-static lead wire is arranged in the electrode area and connected with the electrode unit and / or the auxiliary electrode.

6. A method for producing an organic electroluminescent device, characterized by comprising the steps of: An insulating layer is arranged on the first anti-static lead wire and / or the second anti-static lead wire. The first electrode layer comprises at least one electrode area connected with a bonding area through an electrode lead wire, and the first anti-static lead wire is connected with at least part of the at least one electrode area. The first electrode layer comprises at least one electrode area connected with a bonding area through an electrode lead wire, and each electrode area comprises a plurality of electrode units, an auxiliary electrode is arranged in the plurality of electrode areas, each electrode unit is directly connected with the auxiliary electrode or connected with the auxiliary electrode through a connecting unit, the second anti-static lead wire is arranged beside the electrode unit, and the width of the second anti-static lead wire of each electrode unit is smaller than that of the electrode lead wire, that of the connecting unit and that of the auxiliary electrode. The second anti-static lead wire is connected with the auxiliary electrode and / or connected with the plurality of electrode units. Each first anti-static lead wire and / or second anti-static lead wire has a multi-section structure, and each section is provided with a pointed end. ​ The first anti-static lead is connected to the electrode area, and is located beside the electrode area and connected to the electrode area, and the first anti-static lead is disconnected at a certain position; and / or the first anti-static lead is connected to the electrode lead; The electrode area corresponds to a light emitting area of a screen body, and the electrode area comprises an electrode unit and an auxiliary electrode; A second anti-static lead is formed on the substrate, and the second anti-static lead is arranged in the electrode area and connected to the electrode unit and / or the auxiliary electrode.

7. The method of producing an organic electroluminescent device according to claim 6, wherein The first electrode layer comprises at least one electrode area, and the electrode area is connected to the bonding area through an electrode lead; the first anti-static lead is connected to at least part of the at least one electrode area.

8. The preparation method according to claim 6, characterized in that, The first electrode layer comprises at least one electrode area, and the electrode area is connected to the bonding area through an electrode lead; each electrode area comprises a plurality of electrode units; an auxiliary electrode is arranged in the plurality of electrode areas; each electrode unit is directly connected to the auxiliary electrode or connected to the auxiliary electrode through a connecting unit; the second anti-static lead is located beside the electrode unit; the width of the second anti-static lead of each electrode unit is smaller than the width of the electrode lead, the width of the connecting unit and the width of the auxiliary electrode. The second anti-static lead is connected to the auxiliary electrode; and / or the second anti-static lead is connected to the plurality of electrode units.

9. An electronic device, comprising: The organic electroluminescent device comprises the organic electroluminescent device according to any one of claims 1 to 5.

Images