Organic light-emitting device and device

Abstract

The invention provides an organic light-emitting device and device, and is applied to the technical field of semiconductors. The device includes: a substrate; the first electrode layer is arranged on one side of the substrate; the light-emitting layer is arranged on the side, away from the substrate, of the first electrode layer; the second electrode layer is arranged on the side, away from the first electrode layer, of the light-emitting layer; the magnetic layer is arranged between the substrate and the second electrode layer or on one side, far away from the light-emitting layer, of the second electrode layer, and comprises a magnetic material; the magnetic layer is used for being magnetically attracted with the first magnetic conductive material on the support, and the first electrode layer and the second electrode layer are electrically connected with the first part and the second part of the first magnetic conductive material respectively. By arranging the magnetic layer, the organic light-emitting device can be firmly fixed on the bracket, and the first electrode layer and the second electrode layer of the organic light-emitting device are electrically connected with the first magnetic conductive material of the bracket respectively, so that the organic light-emitting device is electrically connected with an external driving circuit; and the light-emitting reliability of the organic light-emitting device is improved.

Description

Technical Field

[0001] The present invention relates to the field of semiconductor technology, and in particular to an organic light-emitting device and apparatus. Background Art

[0002] Organic Light Emitting Display (OLED) has the advantages of active luminescence, wide color gamut, fast response, wide viewing angle, high contrast and planarization, and is the development trend of the next generation of display and lighting technology.

[0003] When OLED is installed as a light source, it is usually bonded to the fixing bracket by adhesive fixation, for example, using glue to bond the OLED to the bracket. However, the low temperature environment will affect the adhesion of the glue, resulting in the OLED not being well fixed on the bracket, and when the flatness of the bracket is not good, the bonding area of ​​the glue is small, which also causes the OLED to fall off easily. In addition, the current electrical connection method of OLED is usually that the positive and negative electrodes of the OLED are connected to the driving circuit set on one side of the bracket through a flexible cable. However, the flexible cable is easy to break and not conductive after being bent many times, affecting the reliability of the OLED. Summary of the invention

[0004] The embodiments of the present invention provide an organic light emitting device and an apparatus to solve the technical problems in the related art that the OLED cannot be firmly fixed on a bracket and is easy to fall off, and the electrical conduction of the OLED is unreliable.

[0005] In a first aspect, an embodiment of the present invention provides an organic light-emitting device, comprising:

[0006] substrate;

[0007] A first electrode layer is disposed on one side of the substrate;

[0008] A light-emitting layer is disposed on a side of the first electrode layer away from the substrate;

[0009] A second electrode layer is disposed on a side of the light-emitting layer away from the first electrode layer;

[0010] a magnetic layer, disposed between the substrate and the second electrode layer, or disposed on a side of the second electrode layer away from the light-emitting layer, and the magnetic layer comprises a magnetic material;

[0011] The magnetic layer is used for magnetic attraction with the first magnetic conductive material on the bracket fixing the organic light-emitting device, the first magnetic conductive material includes a first part and a second part which are disconnected, the first electrode layer is used for electrical connection with the first part, and the second electrode layer is used for electrical connection with the second part.

[0012] In a possible implementation, the magnetic material is a second magnetic conductive material; the organic light-emitting device further includes an auxiliary electrode layer;

[0013] The auxiliary electrode layer is disposed on a side of the magnetic layer close to the substrate;

[0014] The magnetic layer includes a disconnected third portion and a fourth portion; the auxiliary electrode layer includes a disconnected first auxiliary electrode lead and a second auxiliary electrode lead;

[0015] The second electrode layer and the light emitting layer expose at least part of the third portion and the fourth portion;

[0016] The first electrode layer is electrically connected to the third portion through the first auxiliary electrode lead, and the exposed third portion is in contact with and electrically connected to the first portion;

[0017] The second electrode layer is electrically connected to the second portion through the second auxiliary electrode lead and the exposed fourth portion.

[0018] In a possible implementation, the organic light-emitting device further includes a second electrode lead, and the second electrode lead and the first electrode layer are located in the same layer;

[0019] The substrate comprises a main body region and an edge region, the light emitting layer and the second electrode layer are located in the main body region; the first electrode layer extends from the main body region to the edge region; the second electrode lead is located in the edge region;

[0020] The first auxiliary electrode lead extends from the main body region to the edge region, and at least a portion of the third portion is located in the edge region and covers the first auxiliary electrode lead;

[0021] The second auxiliary electrode lead is located in the edge region and covers the second electrode lead; at least a portion of the fourth portion is located in the edge region and covers the second auxiliary electrode lead.

[0022] In a possible implementation manner, a bonding lead is provided on a side of the second electrode layer close to the edge region, and the second electrode layer is electrically connected to the second auxiliary electrode lead and the fourth portion through the bonding lead.

[0023] In a possible implementation, the magnetic layer further includes a fifth portion, which is used for magnetic attraction with the first magnetic conductive material on the bracket;

[0024] The fifth part is located in the main body area, and the fifth part is disconnected from the third part and the fourth part respectively;

[0025] The electrical conductivity of the fifth portion is lower than the electrical conductivity of the third portion;

[0026] The electrical conductivity of the fifth portion is lower than that of the fourth portion.

[0027] In a possible implementation, the arrangement density of the magnetic material in the central region of the magnetic layer is greater than the arrangement density of the magnetic material in the region other than the central region; or the magnetic strength of the magnetic material in the central region of the magnetic layer is greater than the magnetic strength of the magnetic material in the region other than the central region;

[0028] The magnetic material includes at least one of the following ferromagnetic materials: nickel, iron and cobalt.

[0029] In a possible implementation manner, the light-emitting layer includes at least one light-emitting area; the magnetic layer includes at least one opening, and the opening corresponds to the light-emitting area of ​​the light-emitting layer.

[0030] In a possible implementation, it further includes an encapsulation layer, which is disposed on a side of the second electrode layer away from the light-emitting layer;

[0031] A magnetic material is disposed in the central area of ​​the packaging layer or at least one layer of the packaging layer is a magnetic layer, and the packaging layer is used for magnetic attraction with the first magnetic conductive material on the bracket.

[0032] In a possible implementation manner, a third magnetic conductive material is provided in a surrounding area of ​​the encapsulation layer;

[0033] The surrounding area includes the disconnected sixth and seventh portions;

[0034] The sixth portion is in contact with and electrically connected to the second portion and the second electrode layer respectively;

[0035] The seventh portion contacts and is electrically connected to the first portion, and is electrically connected to the first electrode layer.

[0036] In a second aspect, an embodiment of the present invention provides an organic light-emitting device, comprising: a bracket and an organic light-emitting device as described in any one of the first aspects;

[0037] The bracket is provided with a first magnetic conductive material, the first magnetic conductive material comprises a disconnected first part and a second part, the first part is used to be electrically connected to the first electrode layer, and the second part is used to be electrically connected to the second electrode layer;

[0038] The first magnetic conductive material is powered by an external driving circuit.

[0039] An organic light-emitting device and device provided by an embodiment of the present invention, wherein a magnetic layer including a magnetic material is provided in the organic light-emitting device, and the magnetic layer is used for magnetic attraction with a first magnetic conductive material of a fixing bracket, so that the organic light-emitting device can be firmly fixed on the bracket without being easily dropped due to the influence of the ambient temperature and the flatness of the bracket. In addition, the first electrode layer and the second electrode layer of the organic light-emitting device are respectively used for electrically connecting with the first part and the second part of the first magnetic conductive material on the bracket, so that the first electrode layer and the second electrode layer of the organic light-emitting device are respectively electrically connected with the positive electrode and the negative electrode of the external driving circuit, avoiding the situation that the flexible flat cable is easily broken and non-conductive due to multiple bending due to electrical connection through a flexible flat cable, thereby improving the light-emitting reliability of the organic light-emitting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0041] Figure 1 is a schematic structural diagram of an organic light-emitting device provided in one embodiment of the present application;

[0042] Figure 2A is a bottom view of a bracket provided in one embodiment of the present application;

[0043] Figure 2B yes Figure 2A Side view of the bracket;

[0044] Figure 3A is along Figure 1 Section view along section line AA';

[0045] Figure 3B is a schematic diagram of the position of a magnetic layer provided in one embodiment of the present application;

[0046] Figure 3C is a schematic diagram of the position of a magnetic layer provided in another embodiment of the present application;

[0047] Figure 4 is along Figure 1 Section view along section line BB';

[0048] Figure 5 is a schematic structural diagram of an organic light-emitting device provided in another embodiment of the present application;

[0049] Figure 6 is along Figure 5 Section view along section line CC';

[0050] Figure 7 is along Figure 5 Section view along section line DD'. DETAILED DESCRIPTION

[0051] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0052] The following examples will help those skilled in the art to further understand the effects of the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several modifications and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0053] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0054] It should also be understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0055] In the description of the present specification and the appended claims, the terms "first", "second", "third" and the like are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0056] References to "one embodiment" or "some embodiments" etc. described in the present specification mean that one or more embodiments of the present invention include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0057] In addition, the “plurality” mentioned in the embodiments of the present invention should be interpreted as two or more.

[0058] In order to make the purpose, technical solutions and advantages of the present invention more clear, specific embodiments will be described below in conjunction with the accompanying drawings.

[0059] See also Figure 1-4 , which shows a schematic structural diagram of an organic light-emitting device provided in an embodiment of the present application.

[0060] Figure 2A is a bottom view of a bracket provided in one embodiment of the present application, Figure 2B yes Figure 2A Side view of the bracket.

[0061] Figure 3A is along Figure 1 Section view along section line AA'. Figure 4 is along Figure 1 The organic light emitting device may include:

[0062] substrate 101;

[0063] A first electrode layer 102 is disposed on one side of the substrate 101;

[0064] The light emitting layer 103 is disposed on a side of the first electrode layer 102 away from the substrate 101;

[0065] The second electrode layer 104 is disposed on a side of the light emitting layer 103 away from the first electrode layer 102;

[0066] The magnetic layer 105 is disposed between the substrate 101 and the second electrode layer 104 , or disposed on a side of the second electrode layer 104 away from the light emitting layer 103 , and the magnetic layer 105 includes a magnetic material;

[0067] The magnetic layer 105 is used for magnetic attraction with the first magnetic conductive material on the bracket fixing the organic light-emitting device, the first magnetic conductive material includes a disconnected first part and a second part, the first electrode layer 102 is used for electrically connecting with the first part, and the second electrode layer 104 is used for electrically connecting with the second part.

[0068] It should be noted that, for the convenience of viewing and understanding, the light-emitting layer 103 and the second electrode layer 104 are not shown in FIG. Figure 1 Given in.

[0069] In this embodiment, the substrate 101 is transparent and may be a flexible substrate. The material of the flexible substrate may be an organic polymer such as PET, PEN and PI or ultra-thin glass. The substrate 101 may also be a rigid substrate such as a glass substrate.

[0070] When the first electrode layer 102 is an anode, the second electrode layer 104 is a cathode; or, when the first electrode layer 102 is a cathode, the second electrode layer 104 is an anode. Taking the first electrode layer 102 as an anode and the second electrode layer 104 as a cathode as an example, the material of the first electrode layer 102 can be a transparent conductive material, such as indium tin oxide ITO. The light-emitting layer 103 can include at least one light-emitting area, each light-emitting area and the corresponding first electrode layer 102 and second electrode layer 104 form a light-emitting unit, and the light of the light-emitting unit is along the direction from the light-emitting layer 103 to the substrate 101, and finally emits light from the substrate 101. The material of the second electrode layer 104 can be a high-conductivity metal material, such as metal silver Ag, aluminum Al, etc.

[0071] The magnetic material included in the magnetic layer 105 may be a ferromagnetic material having magnetism, such as nickel Ni, iron Fe, cobalt Co, etc.

[0072] Here, optionally, when the magnetic layer 105 is an opaque material and the magnetic layer 105 is disposed between the substrate 101 and the light-emitting layer 103, the magnetic layer 105 includes at least one opening, and the opening corresponds to the light-emitting area of ​​the light-emitting layer 103, so that the magnetic layer 105 does not affect the light emission of the light-emitting layer 103. The light-emitting area can extend downward and fill the opening, that is, the opening is filled with the same material as the material of the light-emitting area, or the opening is filled with other transparent materials. For example, the magnetic layer 105 can be set in a grid form without blocking the light-emitting area, or it can be set as a whole layer with an opening. When the magnetic layer 105 is an opaque material and the magnetic layer 105 is disposed on a side away from the light-emitting surface of the light-emitting layer 103 (that is, the side of the light-emitting layer 103 away from the first electrode layer 102), since the magnetic layer 105 does not block the light emission of the light-emitting layer 103 at this time, the magnetic layer 105 may not be provided with an opening.

[0073] Optionally, when the magnetic layer 105 is a transparent material, the magnetic layer 105 can be provided as a whole layer.

[0074] As can be seen from the foregoing, the magnetic layer 105 (including the third portion 1051 and the fifth portion 1053) can be disposed between the substrate 101 and the second electrode layer 104, or disposed on a side of the second electrode layer 104 away from the light emitting layer 103. Figure 3A , the magnetic layer 105 may be disposed between the auxiliary electrode layer 106 (the first auxiliary electrode lead 1061) and the light emitting layer 103. Alternatively, referring to Figure 3B , the magnetic layer 105 may be disposed between the first electrode layer 102 and the auxiliary electrode layer 106 (first auxiliary electrode lead 1061). Figure 3CThe magnetic layer 105 may be disposed between the substrate 101 and the first electrode layer 102. If the magnetic layer 105 is an opaque material, the opening corresponding to the light emitting area may be filled with a transparent material. FIG. 3A to FIG. 3C Only some of the positions where the magnetic layer 105 can be set are shown, and those skilled in the art can FIG. 3A to FIG. 3C According to the description in the related text of the present application, the magnetic layer 105 can be arranged at other positions in the organic light-emitting device.

[0075] As can be seen from the foregoing, when the organic light-emitting device is installed, it needs to be fixed on the bracket and needs to be electrically connected to the external driving circuit. Here, the bracket for fixing the organic light-emitting device is provided with a first magnetic conductive material, which can be a magnetic material doped with a high-conductivity metal or metal oxide, such as a magnetic nickel material doped with metal aluminum, silver or molybdenum. Here, the high-conductivity metal and metal oxide can be metals and metal materials with a conductivity greater than or equal to a preset conductivity threshold, and the preset conductivity threshold can be 1.5×10 7 S / m. Figure 2A This is the bottom view of the bracket, refer to Figure 2A The first magnetic conductive material is powered by an external driving circuit, and the first magnetic conductive material may include a disconnected first part 011 and a second part 012, for example, the first part 011 is used to connect to the positive pole of the external driving circuit, and the second part 012 is used to connect to the negative pole of the external driving circuit.

[0076] In this embodiment, when the organic light-emitting device is installed, the magnetic layer 105 of the organic light-emitting device is used to magnetically attract the first magnetic conductive material on the bracket, so that the organic light-emitting device can be firmly fixed on the bracket without being easily affected by the ambient temperature and the flatness of the bracket. In addition, when the organic light-emitting device is installed, the first electrode layer 102 of the organic light-emitting device is used to electrically connect with the first part 011 of the bracket, and the second electrode layer 104 is used to electrically connect with the second part 012. In this way, the first electrode layer 102 and the second electrode layer 104 of the organic light-emitting device can be electrically connected to the positive and negative electrodes of the external driving circuit respectively, without the need to set a flexible flat cable to electrically connect the organic light-emitting device to the external driving circuit. Therefore, the flexible flat cable will not be easily broken due to multiple bending and non-conductivity, thereby improving the light-emitting reliability of the organic light-emitting device.

[0077] Exemplarily, the first electrode layer 102 may be electrically connected to the first portion 011 through a wire, and the second electrode layer 104 may be electrically connected to the second portion 012 through another wire. In addition, at least a portion of the first electrode layer 102 may be extended and exposed outside the second electrode layer 104, the magnetic layer 105, and the light-emitting layer 103. Figure 2B , Figure 2BThe side view of the support is shown, and at least part of the first portion 011 of the support protrudes in a direction close to the organic light-emitting device, so that at least part of the exposed first electrode layer 102 contacts and is electrically connected to at least part of the first portion 011, thereby achieving electrical connection between the first electrode layer 102 and the first portion 011. Similarly, at least part of the second electrode layer 104 extends beyond the edge of the light-emitting layer 103, and accordingly, at least part of the second portion 012 of the support protrudes in a direction close to the organic light-emitting device, so that at least part of the extended second electrode layer 104 contacts and is electrically connected to at least part of the second portion, thereby achieving electrical connection between the second electrode layer 104 and the second portion. The vertical projection of at least part of the exposed first electrode layer 102 does not overlap with the vertical projection of at least part of the exposed second electrode layer 104.

[0078] The above examples show two electrical connection methods, namely, the first electrode layer 102 is electrically connected to the first portion 011 , and the second electrode layer 104 is electrically connected to the second portion 012 . In practical applications, there may be other electrical connection methods, which are not specifically limited here.

[0079] The organic light-emitting device provided in the embodiment of the present application has a magnetic layer including a magnetic material disposed in the organic light-emitting device, and the magnetic layer is used for magnetic attraction with the first magnetic conductive material of the fixing bracket, so that the organic light-emitting device can be firmly fixed on the bracket without being easily dropped due to the influence of the ambient temperature and the flatness of the bracket. In addition, the first electrode layer and the second electrode layer of the organic light-emitting device are respectively used for electrically connecting with the first part and the second part of the first magnetic conductive material on the bracket, so that the first electrode layer and the second electrode layer of the organic light-emitting device are respectively electrically connected with the positive electrode and the negative electrode of the external driving circuit, avoiding the situation that the flexible flat cable is easily broken and non-conductive due to multiple bending of the flexible flat cable, and improving the light-emitting reliability of the organic light-emitting device.

[0080] Optionally, the arrangement density of the magnetic material in the central region of the magnetic layer 105 is greater than the arrangement density of the magnetic material in the region other than the central region. The central region of the magnetic layer 105 is the middle position of the magnetic layer 105. When the magnetic layer 105 is in the form of a grid, the arrangement density of the grid in the central region of the magnetic layer 105 is greater than the arrangement density of the grid in the region other than the central region. When the magnetic layer 105 is a whole layer, the magnetic strength of the magnetic material in the central region of the magnetic layer 105 is greater than the magnetic strength of the magnetic material in the region other than the central region.

[0081] In this way, the magnetism of the central area of ​​the magnetic layer 105 is greater than that of the areas other than the central area, which can ensure that the magnetic layer 105 can be more firmly magnetically attracted to the first magnetic conductive material of the bracket.

[0082] Optionally, the organic light emitting device may further include a first insulating layer ( Figures 1 to 4 The first insulating layer is disposed on the surface of the light-emitting layer 103 away from the second electrode layer 104, and is used to disconnect the light-emitting layer 103 from the first electrode layer 102. The first insulating layer can be provided in a graphical manner, for example, the first insulating layer also has an opening, and the opening corresponds to the light-emitting area of ​​the light-emitting layer 103, so that the first insulating layer does not affect the light emission of the light-emitting layer 103.

[0083] In some embodiments, in order to improve the convenience of electrical connection of the organic light-emitting device during installation, the magnetic material can also be set as the second magnetic conductive material. In this way, the first electrode layer 102 and the second electrode layer 104 can be more conveniently electrically connected to the first part and the second part of the first magnetic conductive material on the bracket through the magnetic layer 105, thereby realizing the first electrode layer and the second electrode layer of the organic light-emitting device being electrically connected to the positive and negative electrodes of the external driving circuit without the need for using a flexible flat cable for electrical connection, thereby improving the light-emitting reliability of the organic light-emitting device.

[0084] The following is combined with Figure 1-4 Provide explanation.

[0085] In a possible implementation manner, the magnetic material is a second magnetic conductive material, and the organic light-emitting device further includes an auxiliary electrode layer 106 .

[0086] The auxiliary electrode layer 106 is disposed on a side of the magnetic layer 105 close to the substrate 101 .

[0087] Preferably, the auxiliary electrode layer 106 is disposed on a side of the first electrode layer 102 away from the substrate 101 ; and the magnetic layer 105 is disposed on a side of the auxiliary electrode layer 106 away from the first electrode layer 106 .

[0088] The magnetic layer 105 includes a disconnected third portion 1051 and a fourth portion 1052 ; the auxiliary electrode layer 106 includes a disconnected first auxiliary electrode lead 1061 and a second auxiliary electrode lead 1062 .

[0089] The second electrode layer 104 and the light emitting layer 103 expose at least part of the third portion 1051 and the fourth portion 1052 ;

[0090] The first electrode layer 102 is electrically connected to the third portion 1051 through the first auxiliary electrode lead 1061, and the exposed third portion 1051 is in contact with and electrically connected to the first portion;

[0091] The second electrode layer 104 is electrically connected to the second portion through the second auxiliary electrode lead 1062 and the exposed fourth portion 1052 .

[0092] In this embodiment, the second magnetic conductive material may also be a magnetic material doped with a high conductivity metal or metal oxide. For example, a magnetic nickel material doped with metal aluminum, silver or molybdenum. Here, the high conductivity metal and metal oxide may be a metal or metal material having a conductivity greater than or equal to a preset conductivity threshold. The preset conductivity threshold may be 1.5×10 7 S / m. In this way, the third portion 1051 and the fourth portion 1052 of the magnetic layer 105 can be both magnetically attracted and conductive. The conductivity of the third portion 1051 exposed outside the light-emitting layer 103 can be higher than the portion of the third portion 1051 corresponding to the light-emitting layer 103. Similarly, the conductivity of the fourth portion 1052 exposed outside the light-emitting layer 103 can be higher than the portion of the fourth portion 1052 corresponding to the light-emitting layer.

[0093] Specifically, the magnetic layer 105 further includes a fifth portion 1053 for magnetically attracting the first magnetic conductive material on the bracket. The fifth portion 1053 is located in the main body area, and the fifth portion 1053 is disconnected from the third portion 1051 and the fourth portion 1052 respectively.

[0094] The conductivity of the fifth portion 1053 is lower than that of the third portion 1051 , and the conductivity of the fifth portion 1053 is lower than that of the fourth portion 1052 .

[0095] The auxiliary electrode layer 106 is a fast channel for assisting the first electrode layer 102, which is used to reduce the square resistance and reduce the voltage gradient. The material of the auxiliary electrode layer 106 can be a metal material with high electrical conductivity, such as metal aluminum Al and molybdenum Mo, etc., whose resistance is less than the resistance of the material of the first electrode layer 102, and can reduce the resistance value of the current flowing through.

[0096] Optionally, the auxiliary electrode layer 106 may be configured as a grid structure so as not to block the light emitting area.

[0097] In this embodiment, when the organic light-emitting device is installed, the first electrode layer 102 and the second electrode layer 104 should be electrically connected to the positive electrode and the negative electrode of the external driving circuit respectively. Therefore, the magnetic layer 105 may include a disconnected third part 1051 and a fourth part 1052, and the auxiliary electrode layer 106 may include a disconnected first auxiliary electrode lead 1061 and a second auxiliary electrode lead 1062. Thus, the first electrode layer 102 is electrically connected to the first part of the bracket through the first auxiliary electrode lead 1061 and the third part 1051, and the second electrode layer 104 is electrically connected to the second part of the bracket through the second auxiliary electrode lead 1062 and the fourth part 1052. In this way, when the organic light-emitting device is installed, the third part 1051 is electrically connected to the first part of the bracket, and the fourth part 1052 is electrically connected to the second part of the bracket, so that the organic light-emitting device can be electrically connected to the positive electrode and the negative electrode of the external driving circuit.

[0098] Optionally, in order to facilitate the third portion 1051 and the fourth portion 1052 to be electrically connected to the first portion and the second portion of the support respectively, the second electrode layer 104 and the light-emitting layer 103 may be arranged to expose at least part of the third portion 1051 and the fourth portion 1052, that is, at least part of the third portion 1051 and the fourth portion 1052 extend beyond the edge of the second electrode layer 104 and the light-emitting layer 103. Accordingly, at least part of the first portion of the support and at least part of the second portion of the support protrude in a direction close to the organic light-emitting device, so that the exposed third portion 1051 contacts and is electrically connected to the first portion, and the exposed fourth portion 1052 contacts and is electrically connected to the second portion.

[0099] Thus, the first electrode layer 102 is electrically connected to the third portion 1051 through the first auxiliary electrode lead 1061, and the exposed third portion 1051 is in contact with and electrically connected to the first portion. The second electrode layer 104 is electrically connected to the second portion through the second auxiliary electrode lead 1062 and the exposed fourth portion 1052.

[0100] In this way, the electrical connection between the external driving power supply and the organic light-emitting device can be achieved, and the current flow path is: the positive electrode of the external driving power supply, the first part of the bracket, the third part 1051 of the magnetic conductive layer, the first auxiliary electrode lead 1061, the first electrode layer 102, the light-emitting layer 103, the second electrode layer 104, the second auxiliary electrode lead 1062, the fourth part 1052, the second part of the bracket, and the negative electrode of the external driving power supply.

[0101] In this embodiment, an auxiliary electrode layer is provided as a fast channel to assist the first electrode layer, which can reduce square resistance, reduce voltage gradient, and reduce the resistance value through which current flows. The magnetic material of the magnetic layer is provided as a second magnetic conductive material, that is, the third part and the fourth part of the magnetic layer can be both magnetically attracted and conductive, and the second electrode layer and the light-emitting layer are provided to expose at least part of the third part and the fourth part, so that the first electrode layer is electrically connected to the first part through the first auxiliary electrode lead and the exposed third part, and the second electrode layer is electrically connected to the second part through the second auxiliary electrode lead and the exposed fourth part. The above method is more convenient than the method in which the first electrode layer and the second electrode layer are electrically connected to the first part and the second part on the bracket based on the provided lead. At the same time, the magnetic attraction area with the bracket is increased, so that the organic light-emitting device can be more firmly fixed on the bracket.

[0102] In some embodiments, the organic light-emitting device also includes a second electrode lead 107, the second electrode lead 107 and the first electrode layer 102 are located on the same layer, the substrate 101 includes a main area and an edge area, the light-emitting layer 103 and the second electrode layer 104 are located in the main area, the first electrode layer 102 extends from the main area to the edge area, and the second electrode lead 107 is located in the edge area.

[0103] Then the specific way in which the first electrode layer 102 is electrically connected to the third portion 1051 through the first auxiliary electrode lead 1061 may be: the first auxiliary electrode lead 1061 extends from the main area to the edge area, and at least a portion of the third portion 1051 is located in the edge area and covers the first auxiliary electrode lead 1061. The specific way in which the second electrode layer 104 is electrically connected to the second portion through the second auxiliary electrode lead 1062 and the exposed fourth portion 1052 may be: the second auxiliary electrode lead 1062 is located in the edge area and covers the second electrode lead 107, and at least a portion of the fourth portion 1052 is located in the edge area and covers the second auxiliary electrode lead 1062.

[0104] Reference Figure 3A and Figure 4 The edge region on the substrate 101 is arranged on one side of the main region. The light emitting unit is located in the main region, the light emitting layer 103 and the second electrode layer 104 are located in the main region, and the second electrode lead 107 is located in the edge region.

[0105] Optional, e.g. reference Figure 1 and Figure 3A , at least part of the first electrode layer 102 extends outside the main area to the edge area outside the main area, and the first auxiliary electrode lead 1061 extends from the main area to the edge area, and at least part of the third part 1051 is located in the edge area and covers the first auxiliary electrode lead 1061. In this way, the part of the first electrode layer 102 located in the edge area is covered with the first auxiliary electrode lead 1061, and the first auxiliary electrode lead 1061 is covered with the third part 1051, thereby realizing the electrical connection between the first electrode layer 102 and the third part 1051 through the first auxiliary electrode lead 1061.

[0106] It should be noted that the portion of the first electrode layer 102 located in the edge area can be in the form of a lead and can include multiple leads. In this way, the first auxiliary electrode lead 1061 and the third portion 1051 sequentially covered on the first electrode layer 102 can also be in the form of a lead.

[0107] For example, refer to Figure 1 and Figure 4The light-emitting layer 103 and the second electrode layer 104 are located in the main area, the second electrode lead 107 and the second auxiliary electrode lead 1062 are located in the edge area, at least part of the fourth part 1052 is located in the edge area, and the second auxiliary electrode lead 1062 covers the second electrode lead 107, and at least part of the fourth part 1052 covers the second auxiliary electrode lead 1062. In this way, the second electrode layer 104 and the fourth part 1052 can be connected by setting a lead, so that the second electrode layer 104 is electrically connected to the second part through the second auxiliary electrode lead 1062 and the fourth part 1052.

[0108] It should be noted that the second electrode lead 107 is used for conducting electricity and supporting the second auxiliary electrode lead 1062 and the fourth portion 1052. The second electrode lead 107 is in the form of a lead and may include a plurality of leads, so that the second auxiliary electrode lead 1062 and the fourth portion 1052 sequentially covered on the electrode lead are also in the form of a lead.

[0109] Optionally, a second insulating layer 111 may be provided between the first electrode layer 102, the first auxiliary electrode lead 1061 and the third portion 1051 as a whole and the second electrode lead 107, the second auxiliary electrode lead 1062 and the fourth portion 1052 as another whole, and the second insulating layer 111 is used to electrically isolate the above two wholes.

[0110] In this embodiment, by providing the main body area and the edge area, the first electrode layer and the first auxiliary electrode lead extend from the main body area to the edge area, and at least part of the third part is located in the edge area and covers the first auxiliary electrode lead, so that the first electrode layer can be electrically connected to the third part through the first auxiliary electrode lead. At the same time, the exposed third part contacts and is electrically connected to the first part, which improves the convenience of electrically connecting the first electrode layer to the first part of the bracket.

[0111] Similarly, the light-emitting layer and the second electrode layer are located in the main body area, the second electrode lead and the second auxiliary electrode lead are located in the edge area, and the second auxiliary electrode lead covers the second electrode lead, and at least part of the fourth part is located in the edge area and covers the second auxiliary electrode lead, so that the second electrode layer can be electrically connected to the second part through the second auxiliary electrode lead and the fourth part. At the same time, the exposed fourth part is in contact with and electrically connected to the second part, which improves the convenience of electrical connection between the second electrode layer and the second part of the bracket, that is, improves the convenience of electrical connection between the organic light-emitting device and the first magnetic conductive material of the bracket, thereby improving the convenience of electrical connection between the organic light-emitting device and the external driving circuit.

[0112] In some embodiments, the specific method of electrically connecting the second electrode layer 104 with the second auxiliary electrode lead 1062 and the fourth part 1052 can be: a overlapping lead 109 is provided on the side of the second electrode layer 104 close to the edge area, and the second electrode layer 104 is electrically connected to the second auxiliary electrode lead 1062 and the fourth part 1052 through the overlapping lead 109.

[0113] Reference Figure 4 In this embodiment, a lap lead 109 is provided on one side of the second electrode layer 104 near the edge region, and the material of the lap lead 109 may be different from or the same as the material of the second electrode layer 104. The lap lead 109 may extend from the second electrode layer 104 to the edge region and be electrically connected to the fourth portion 1052. Thus, the second electrode layer 104 is electrically connected to the second auxiliary electrode lead 1062 and the fourth portion 1052.

[0114] In some embodiments, another way of electrically connecting the first electrode layer 102 and the first auxiliary electrode lead 1061 is: connecting the first auxiliary electrode lead 1061 and the first electrode layer 102 by punching. For example, the organic light-emitting device may further include a fifth insulating layer, which is disposed between the first electrode layer 102 and the auxiliary electrode layer 106 and extends from the main region to the edge region, and is used to electrically isolate the first electrode layer 102 from the auxiliary electrode layer 106. A first through hole may be provided in the first auxiliary electrode lead 1061, and an insulating layer is disposed on the inner side of the first through hole. The first through hole may be filled with the material of the first electrode layer or other conductive materials, so that the first electrode layer 102 and the first auxiliary electrode lead 1061 are electrically connected.

[0115] The fifth insulating layer may be graphically arranged, for example, the fifth insulating layer may also be provided with an opening, and the opening corresponds to the light emitting area of ​​the light emitting layer 103 , so that the fifth insulating layer does not affect the light emitting of the light emitting layer 103 .

[0116] In some embodiments, the magnetic layer 105 further includes a fifth portion 1053 for magnetically attracting the first magnetic conductive material on the bracket. The fifth portion 1053 is located in the main body region, and the fifth portion 1053 is disconnected from the third portion 1051 and the fourth portion 1052 respectively.

[0117] In this embodiment, a third insulating layer may be further provided on the surface of the fifth portion 1053 away from the light-emitting layer 103, and the third insulating layer is provided with an opening, and the opening corresponds to the light-emitting area of ​​the light-emitting layer 103, so that the third insulating layer does not affect the light emission of the light-emitting layer 103. Since the fifth portion 1053 of the magnetic layer 105 is located in the main area and is disconnected from the third portion 1051 and the fourth portion 1052 respectively, and the surface of the fifth portion 1053 adjacent to the light-emitting layer 103 is provided with a first insulating layer, and the surface away from the light-emitting layer 103 is provided with a third insulating layer, the fifth portion 1053 is not electrically connected to other layers or parts, and the fifth portion 1053 is only magnetic, and is used for magnetic attraction with the first magnetic conductive material on the bracket. In this way, the fifth portion 1053 of the magnetic layer 105 is only used for magnetic attraction, while the third portion 1051 and the fourth portion 1052 of the magnetic layer 105 are used for magnetic attraction and conduction.

[0118] The third part, the fourth part and the fifth part may be disconnected by the fourth insulating layer 110 .

[0119] In some embodiments, the organic light-emitting device may further include an encapsulation layer, which is disposed on a side of the second electrode layer 104 away from the light-emitting layer 103 to protect the organic light-emitting device.

[0120] Figure 5 It is a schematic diagram of the structure of an organic light-emitting device provided in another embodiment of the present application. Figure 6 is along Figure 5 Section view along section line CC'. Figure 7 is along Figure 5 The cross-section view of the middle section line DD'. Figure 5 As shown, the organic light emitting device may include:

[0121] substrate 101;

[0122] A first electrode layer 102 is disposed on one side of the substrate 101;

[0123] The light emitting layer 103 is disposed on a side of the first electrode layer 102 away from the substrate 101;

[0124] The second electrode layer 104 is disposed on a side of the light emitting layer 103 away from the first electrode layer 102;

[0125] The magnetic layer 105 is disposed between the substrate 101 and the second electrode layer 104, or disposed on a side of the second electrode layer 104 away from the light-emitting layer 103, and the magnetic layer 105 includes a magnetic material;

[0126] The magnetic layer 105 is used for magnetic attraction with the first magnetic conductive material on the bracket for fixing the organic light-emitting device, the first magnetic conductive material includes a disconnected first part and a second part, the first electrode layer 102 is used for electrically connecting with the first part, and the second electrode layer 104 is used for electrically connecting with the second part;

[0127] And, the encapsulation layer 108 is arranged on the side of the second electrode layer 104 away from the light-emitting layer 103, and the central area F1 of the encapsulation layer 108 is provided with a magnetic material 1080 or at least one layer of the encapsulation layer is a magnetic layer. The encapsulation layer 108 is used for magnetic attraction with the first magnetic conductive material on the bracket.

[0128] It should be noted that, for the convenience of viewing and understanding, the light-emitting layer 103 and the second electrode layer 104 are not shown in FIG. Figure 5 Given in

[0129] In this embodiment, the relevant descriptions and principles of the substrate 101 , the first electrode layer 102 , the light-emitting layer 103 , the second electrode layer 104 and the magnetic layer 105 can refer to the above embodiments and will not be repeated here.

[0130] Optionally, the magnetic layer 105 is disposed between the substrate 101 and the second electrode layer 104, or disposed on a side of the second electrode layer 104 away from the light emitting layer 103, for example, see Figure 6 and Figure 7 The magnetic layer 105 may be disposed on a side of the first electrode layer 102 adjacent to the light emitting layer 103 .

[0131] Exemplarily, the encapsulation layer 108 is used to protect the organic light-emitting device, and the central region F1 of the encapsulation layer 108 is provided with a magnetic material or at least one layer of the encapsulation layer is a magnetic layer, so the encapsulation layer 108 is also used to magnetically attract the first magnetic conductive material on the bracket when the organic light-emitting device is installed. That is, while the magnetic layer 105 is used to magnetically attract the first magnetic conductive material on the bracket, the encapsulation layer 108 is also provided to magnetically attract the first magnetic conductive material on the bracket, so that the magnetism of the organic light-emitting device is stronger, ensuring that the organic light-emitting device can be more firmly fixed on the bracket.

[0132] In some embodiments, a third magnetic conductive material is disposed in the peripheral area F2 of the packaging layer 108, and the peripheral area F2 includes a disconnected sixth portion 1081 and a seventh portion 1082, the sixth portion 1081 being in contact with and electrically connected to the second portion and the second electrode layer 104, respectively, and the seventh portion 1082 being in contact with and electrically connected to the first portion, and being electrically connected to the first electrode layer 102.

[0133] In this embodiment, Figure 5As shown, the vertical projection of the surrounding area F2 and the encapsulation layer 108 on the substrate 101 overlaps with the vertical projection of the first electrode layer 102 on the substrate 101. The third magnetic conductive material can also be a magnetic material doped with a high-conductivity metal or metal oxide, such as a magnetic nickel material doped with metal aluminum, silver or molybdenum. In this way, the disconnected sixth portion 1081 and the seventh portion 1082 included in the surrounding area F2 can be both magnetically attracted and conductive.

[0134] Refer to Figure 2. Figure 5 and Figure 6 The sixth part 1081 is in contact with and electrically connected to the second electrode layer 104 and the second part of the bracket respectively, so that the second electrode layer 104 can be electrically connected to the second part of the bracket, that is, the second electrode layer 104 of the organic light-emitting device is electrically connected to the negative electrode of the external driving circuit.

[0135] Refer to Figure 2. Figure 5 and Figure 7 The seventh portion 1082 is in contact with and electrically connected to the first portion, and is also electrically connected to the first electrode layer 102. The seventh portion 1082 is in contact with and electrically connected to the first electrode layer 102 in a manner that: the seventh portion 1082 is electrically connected to the first electrode layer 102 by punching (e.g. Figure 7 As shown in FIG. 1 , the second electrode layer 104, the light-emitting layer 103 and the magnetic layer 105 are provided with a second through hole 112, the inner side of the second through hole 112 is provided with a layer of insulating material, and the second through hole 112 can be filled with the material of the first electrode layer 102 or other conductive materials, so that the first electrode layer 102 is electrically connected to the seventh part 1082 through the second through hole 112. In this way, the first electrode layer 102 can be electrically connected to the first part of the bracket, that is, the first electrode layer 102 of the organic light-emitting device is electrically connected to the positive electrode of the external driving circuit.

[0136] In this embodiment, the sixth portion 1081 provided in the surrounding area F2 of the encapsulation layer 108 is in contact with and electrically connected to the second portion and the second electrode layer 104, respectively, and no additional lead wire is required, thereby improving the convenience of electrical connection between the second electrode layer 104 and the second portion of the bracket. The seventh portion 1082 provided in the surrounding area F2 of the encapsulation layer 108 is in contact with and electrically connected to the first portion, and is electrically connected to the first electrode layer 102, thereby improving the convenience of electrical connection between the first electrode layer 102 and the first portion of the bracket. Since the sixth portion 1081 and the seventh portion 1082 are magnetic, the magnetic attraction effect between the organic light-emitting device and the bracket is also enhanced, so that the organic light-emitting device can be more firmly fixed on the bracket.

[0137] An embodiment of the present application further provides an organic light-emitting device, which includes a bracket and an organic light-emitting device.

[0138] The bracket is provided with a first magnetic conductive material, which includes a disconnected first part and a second part, the first part is used to be electrically connected to the first electrode layer, and the second part is used to be electrically connected to the second electrode layer. The first magnetic conductive material is powered by an external driving circuit.

[0139] In this embodiment, the organic light emitting device can be the organic light emitting device provided in any of the above embodiments, and the relevant description and principle of the organic light emitting device can refer to the above embodiments, which will not be repeated here. The relevant description and principle of the bracket can refer to the above embodiments, which will not be repeated here.

[0140] In the organic light-emitting device provided in this embodiment, the organic light-emitting device can be firmly fixed on the bracket, and will not be easily dropped due to the influence of the ambient temperature and the flatness of the bracket. In addition, the organic light-emitting device can be electrically connected to the first magnetic conductive material of the bracket, thereby avoiding the situation that the flexible flat cable is easily broken and non-conductive after being bent many times, thereby improving the light-emitting reliability of the organic light-emitting device.

[0141] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0142] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. An organic light-emitting device, characterized in that: include: substrate; A first electrode layer is disposed on one side of the substrate; A light-emitting layer is disposed on a side of the first electrode layer away from the substrate; A second electrode layer is disposed on a side of the light-emitting layer away from the first electrode layer; a magnetic layer, disposed between the substrate and the second electrode layer, or disposed on a side of the second electrode layer away from the light-emitting layer, and the magnetic layer comprises a magnetic material; The magnetic layer is used for magnetic attraction with the first magnetic conductive material on the bracket fixing the organic light-emitting device, the first magnetic conductive material includes a first part and a second part which are disconnected, the first electrode layer is used for electrical connection with the first part, and the second electrode layer is used for electrical connection with the second part.

2. The organic light-emitting device according to claim 1, characterized in that: The magnetic material is a second magnetic conductive material; the organic light emitting device further comprises an auxiliary electrode layer; The auxiliary electrode layer is disposed on a side of the magnetic layer close to the substrate; The magnetic layer includes a disconnected third portion and a fourth portion; the auxiliary electrode layer includes a disconnected first auxiliary electrode lead and a second auxiliary electrode lead; The second electrode layer and the light emitting layer expose at least part of the third portion and the fourth portion; The first electrode layer is electrically connected to the third portion through the first auxiliary electrode lead, and the exposed third portion is in contact with and electrically connected to the first portion; The second electrode layer is electrically connected to the second portion through the second auxiliary electrode lead and the exposed fourth portion.

3. The organic light-emitting device according to claim 2, characterized in that: The organic light emitting device further comprises a second electrode lead, wherein the second electrode lead and the first electrode layer are located at the same layer; The substrate comprises a main body region and an edge region, the light emitting layer and the second electrode layer are located in the main body region; the first electrode layer extends from the main body region to the edge region; the second electrode lead is located in the edge region; The first auxiliary electrode lead extends from the main body region to the edge region, and at least a portion of the third portion is located in the edge region and covers the first auxiliary electrode lead; The second auxiliary electrode lead is located in the edge region and covers the second electrode lead; at least a portion of the fourth portion is located in the edge region and covers the second auxiliary electrode lead.

4. The organic light emitting device according to claim 3, characterized in that: A bonding lead is disposed on one side of the second electrode layer close to the edge region, and the second electrode layer is electrically connected to the second auxiliary electrode lead and the fourth portion through the bonding lead.

5. The organic light-emitting device according to claim 3, characterized in that: The magnetic layer further comprises a fifth portion, which is used for magnetic attraction with the first magnetic conductive material on the bracket; The fifth part is located in the main body area, and the fifth part is disconnected from the third part and the fourth part respectively; The electrical conductivity of the fifth portion is lower than the electrical conductivity of the third portion; The electrical conductivity of the fifth portion is lower than that of the fourth portion.

6. The organic light-emitting device according to claim 1, characterized in that: The arrangement density of the magnetic material in the central region of the magnetic layer is greater than the arrangement density of the magnetic material in the region other than the central region; or the magnetic strength of the magnetic material in the central region of the magnetic layer is greater than the magnetic strength of the magnetic material in the region other than the central region; The magnetic material includes at least one of the following ferromagnetic materials: nickel, iron and cobalt.

7. The organic light-emitting device according to claim 1, characterized in that: The light emitting layer includes at least one light emitting region; the magnetic layer includes at least one opening, and the opening corresponds to the light emitting region of the light emitting layer.

8. The organic light-emitting device according to claim 1, characterized in that: It also includes an encapsulation layer, which is arranged on a side of the second electrode layer away from the light-emitting layer; A magnetic material is disposed in the central area of ​​the packaging layer or at least one layer of the packaging layer is a magnetic layer, and the packaging layer is used for magnetic attraction with the first magnetic conductive material on the bracket.

9. The organic light emitting device according to claim 8, characterized in that: A third magnetic conductive material is provided in the surrounding area of ​​the encapsulation layer; The surrounding area includes the disconnected sixth and seventh portions; The sixth portion is in contact with and electrically connected to the second portion and the second electrode layer respectively; The seventh portion contacts and is electrically connected to the first portion, and is electrically connected to the first electrode layer.

10. An organic light-emitting device, characterized in that: A device comprising a bracket and an organic light-emitting device as claimed in any one of claims 1 to 9; The bracket is provided with a first magnetic conductive material, the first magnetic conductive material comprises a disconnected first part and a second part, the first part is used to be electrically connected to the first electrode layer, and the second part is used to be electrically connected to the second electrode layer; The first magnetic conductive material is powered by an external driving circuit.

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