An organic light emitting device and apparatus

Abstract

The application provides an organic light-emitting device and apparatus, and applies to the technical field of semiconductors.The device comprises a substrate, a first electrode layer arranged on one side of the substrate, a light-emitting layer arranged on the side of the first electrode layer away from the substrate, a second electrode layer arranged on the side of the light-emitting layer away from the first electrode layer, and a magnetic layer arranged between the substrate and the second electrode layer or on the 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 a first magnetic conductive material on a support, and the first electrode layer and the second electrode layer are respectively electrically connected with a first part and a second part of the first magnetic conductive material.The organic light-emitting device can be firmly fixed on the support by arranging the magnetic layer, and the first electrode layer and the second electrode layer of the organic light-emitting device are respectively used for electrical connection with the first magnetic conductive material of the support, electrical connection between the organic light-emitting device and an external driving circuit is realized, and the light-emitting reliability of the organic light-emitting device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of semiconductor, and in particular, to an organic light emitting device and apparatus. BACKGROUND

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

[0003] When the OLED is installed as a light source, it is usually bonded and fixed with a fixed support, for example, the OLED and the support are bonded together by using glue. However, the adhesion of the glue is affected by low temperature environment, which causes the OLED to be not well fixed on the support, and when the flatness of the support is not good, the bonding area of the glue is small, which also causes the OLED to be easily detached. In addition, the current electrical connection mode of the OLED is that the positive and negative electrodes of the OLED are connected by a flexible flat cable and arranged in a driving circuit on one side of the support. However, the flexible flat cable is easily broken and not conductive after being bent for many times, which affects the reliability of the OLED. SUMMARY

[0004] Embodiments of the present application provide an organic light emitting device and apparatus to solve the technical problems that the OLED cannot be firmly fixed on the support and is easily detached, and the electrical conduction of the OLED is unreliable in the related art.

[0005] In a first aspect, embodiments of the present application provide an organic light emitting device, comprising:

[0006] a substrate;

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

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

[0009] a second electrode layer 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 a first magnetic conductive material on a support for fixing the organic light emitting device, the first magnetic conductive material comprises 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; and the organic light emitting device further comprises an auxiliary electrode layer;

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

[0014] The magnetic layer comprises a third part and a fourth part which are disconnected; and the auxiliary electrode layer comprises a first auxiliary electrode lead and a second auxiliary electrode lead which are disconnected;

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

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

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

[0018] In a possible implementation, the organic light emitting device further comprises a second electrode lead, and the second electrode lead is in the same layer as the first electrode layer;

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

[0020] The first auxiliary electrode lead extends from the main 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;

[0021] The second auxiliary electrode lead is located in the edge area and 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.

[0022] In a possible implementation, a lap joint lead is arranged on a side of the second electrode layer close to the edge area, and the second electrode layer is electrically connected to the second auxiliary electrode lead and the fourth part through the lap joint lead.

[0023] In a possible implementation, the magnetic layer further comprises a fifth part for magnetic attraction to the first magnetic conductive material on the support;

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

[0025] The fifth portion has a lower electrical conductivity than the third portion.

[0026] The fifth portion has a lower electrical conductivity than the fourth portion.

[0027] In a possible implementation, the magnetic material in the central region of the magnetic layer has a higher arrangement density than the magnetic material in the regions other than the central region; or the magnetic material in the central region of the magnetic layer has a higher magnetic strength than the magnetic material in the regions other than the central region.

[0028] The magnetic material includes at least one ferromagnetic material selected from nickel, iron, and cobalt.

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

[0030] In a possible implementation, the encapsulation layer is arranged on a side of the second electrode layer away from the light-emitting layer.

[0031] The central region of the encapsulation layer is provided with a magnetic material, or at least one layer of the encapsulation layer is a magnetic layer, and the encapsulation layer is used to be magnetically attracted to the first magnetic conductive material on the support.

[0032] In a possible implementation, the peripheral region of the encapsulation layer is provided with a third magnetic conductive material.

[0033] The peripheral region includes a disconnected sixth portion and a seventh portion.

[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 is in contact with and electrically connected to the first portion, and is electrically connected to the first electrode layer.

[0036] In a second aspect, an organic light-emitting device is provided, including a support and the organic light-emitting device according to any one of the first aspect.

[0037] The support is provided with a first magnetic conductive material, the first magnetic conductive material includes a disconnected first portion and a second portion, the first portion is used to be electrically connected to the first electrode layer, and the second portion 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] This invention provides an organic light-emitting device and apparatus. The organic light-emitting device incorporates a magnetic layer containing magnetic material. This magnetic layer is used to magnetically attract a first magnetically conductive material on a mounting bracket, thereby firmly fixing the organic light-emitting device to the bracket and preventing it from easily detaching due to ambient temperature or the flatness of the bracket. Furthermore, the first and second electrode layers of the organic light-emitting device are respectively electrically connected to a first portion and a second portion of the first magnetically conductive material on the bracket. This allows the first and second electrode layers of the organic light-emitting device to be electrically connected to the positive and negative electrodes of an external driving circuit, respectively. This avoids the problem of flexible flat cables breaking and becoming non-conductive after repeated bending, thus improving the light-emitting reliability of the organic light-emitting device. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of an organic light-emitting device provided in an embodiment of this application;

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

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

[0044] Figure 3A It is along Figure 1 Cross-sectional view of the mid-section line AA';

[0045] Figure 3B This is a schematic diagram showing the position of the magnetic layer according to an embodiment of this application;

[0046] Figure 3C This is a schematic diagram showing the position of the magnetic layer according to another embodiment of this application;

[0047] Figure 4 It is along Figure 1 Cross-sectional view of the mid-section line BB';

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

[0049] Figure 6 It is along Figure 5 Cross-sectional view of the mid-section line CC';

[0050] Figure 7 is along Figure 5 a cross-sectional view along the cross-sectional line DD'. DETAILED DESCRIPTION

[0051] In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular architectures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods, devices, circuits, and

[0052] The following examples will aid in further understanding of the present application by those skilled in the art, but in no way limit the present application. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application. These all fall within the scope of the present application.

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

[0054] It should also be understood that the term "and / or" when used in this specification and the appended claims indicates that the associated listed items can be present one or more of the associated listed items, and all possible combinations thereof.

[0055] In the description of the present application and in the appended claims, the terms "first", "second", "third", etc. are used only for distinguishing between similar elements, and do not imply or suggest relative importance.

[0056] The reference in the specification to "one embodiment" or "some embodiments" or "an embodiment" or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrases "in one embodiment" or "in some embodiments" or "in other embodiments" or "in still other embodiments" or "in yet other embodiments" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily referring to some, but not all embodiments. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless expressly specified otherwise.

[0057] Furthermore, the term "plurality" as used herein shall be interpreted as two or more.

[0058] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0059] See Figures 1-4 The diagram shows a schematic representation of the organic light-emitting device provided in the embodiments of this application.

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

[0061] Figure 3A It is along Figure 1 Cross-sectional view of the mid-section line AA'. Figure 4 It is along Figure 1 A cross-sectional view of the mid-section line BB'. The aforementioned organic light-emitting devices may include:

[0062] substrate 101;

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

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

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

[0066] A magnetic layer 105 is disposed between the substrate 101 and the second electrode layer 104, or disposed on the 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 to magnetically attract a first magnetic conductive material on the support for fixing the organic light-emitting device. The first magnetic conductive material includes a first part and a second part that are disconnected. The first electrode layer 102 is used to electrically connect with the first part, and the second electrode layer 104 is used to electrically connect with the second part.

[0068] It should be noted that, for ease of viewing and understanding, the light-emitting layer 103 and the second electrode layer 104 are not shown. Figure 1 The information is provided in the text.

[0069] In this embodiment, the substrate 101 is transparent and can be a flexible substrate. The material of the flexible substrate can be organic polymers such as PET, PEN and PI or ultra-thin glass. The substrate 101 can 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) or the like. The light-emitting layer 103 can include at least one light-emitting region, each light-emitting region forming a light-emitting unit with a corresponding first electrode layer 102 and second electrode layer 104, the light-emitting unit emitting light in the direction from the light-emitting layer 103 to the substrate 101, and finally emitting light from the substrate 101. The material of the second electrode layer 104 can be a high-conductivity metal material, such as silver (Ag), aluminum (Al), or the like.

[0071] The magnetic layer 105 includes a magnetic material, which can be a ferromagnetic material having magnetic ability, such as nickel (Ni), iron (Fe), cobalt (Co), or the like.

[0072] Here, when the magnetic layer 105 is an opaque material and is arranged between the substrate 101 and the light-emitting layer 103, the magnetic layer 105 includes at least one opening corresponding to the light-emitting region 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 region can extend downward to fill the opening, that is, the opening is filled with the same material as the light-emitting region, or the opening is filled with other transparent materials. For example, the magnetic layer 105 can be arranged in a grid form without blocking the light-emitting region, or can be arranged as an entire layer with openings. When the magnetic layer 105 is an opaque material and is arranged on the 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 can not be provided with an opening.

[0073] Optionally, when the magnetic layer 105 is a transparent material, the magnetic layer 105 can be arranged as an entire layer.

[0074] As described above, the magnetic layer 105 (including the third portion 1051 and the fifth portion 1053) can be arranged between the substrate 101 and the second electrode layer 104, or arranged on the side of the second electrode layer 104 away from the light-emitting layer 103. For example, referring to Figure 3A , the magnetic layer 105 can be arranged between the auxiliary electrode layer 106 (the first auxiliary electrode lead 1061) and the light-emitting layer 103. Or, referring to Figure 3B , the magnetic layer 105 can be arranged between the first electrode layer 102 and the auxiliary electrode layer 106 (the first auxiliary electrode lead 1061). Or, referring to Figure 3CThe magnetic layer 105 can be disposed between the substrate 101 and the first electrode layer 102. If the magnetic layer 105 is made of non-transparent material, the opening corresponding to the light emitting region can be filled with transparent material. Figures 3A to 3C Only some positions where the magnetic layer 105 can be disposed are shown. Those skilled in the art can determine other positions where the magnetic layer 105 can be disposed according to the following description. Figures 3A to 3C Other positions where the magnetic layer 105 can be disposed in the organic light emitting device can be determined according to the following description.

[0075] As described above, when the organic light emitting device is installed, it needs to be fixed on a support and needs to be electrically connected with an external driving circuit. The support used to fix the organic light emitting device is provided with a first magnetic conductive material. The first magnetic conductive material can be a magnetic material doped with high conductivity metal or metal oxide, for example, magnetic nickel material doped with aluminum, silver or molybdenum. The high conductivity metal and metal oxide can be metal and metal material with conductivity greater than or equal to a preset conductivity threshold value. The preset conductivity threshold value can be 1.5 x 10 7 S / m. Figure 2A is a bottom view of the support. Referring to Figure 2A The first magnetic conductive material is powered by the external driving circuit. The first magnetic conductive material can include a first part 011 and a second part 012 connected in series. For example, the first part 011 is used to connect the positive electrode of the external driving circuit, and the second part 012 is used to connect the negative electrode 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 be magnetically attracted to the first magnetic conductive material on the support. In this way, the organic light emitting device can be firmly fixed on the support and will not be easily detached due to environmental temperature and support flatness. In addition, when the organic light emitting device is installed, the first electrode layer 102 of the organic light emitting device is used to be electrically connected with the first part 011 of the support, and the second electrode layer 104 is used to be electrically connected 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 with the positive electrode and the negative electrode of the external driving circuit, respectively, without the need to set a flexible flat cable to electrically connect the organic light emitting device with the external driving circuit. Therefore, the flexible flat cable will not be easily broken due to repeated bending, and the light emitting reliability of the organic light emitting device is improved.

[0077] For example, the first electrode layer 102 can be electrically connected with the first part 011 through a lead wire, and the second electrode layer 104 can be electrically connected with the second part 012 through another lead wire. In addition, at least part of the first electrode layer 102 can extend and be exposed outside the second electrode layer 104, the magnetic layer 105 and the light emitting layer 103. Correspondingly, referring to Figure 2B , Figure 2BThe side view of the bracket is shown, at least part of the first part 011 of the bracket protrudes towards the direction close to the organic light emitting device, so that at least part of the exposed first electrode layer 102 is in contact with and electrically connected to at least part of the first part 011, thereby realizing the electrical connection between the first electrode layer 102 and the first part 011. Similarly, at least part of the second electrode layer 104 extends beyond the edge of the light emitting layer 103, and correspondingly, at least part of the second part 012 of the bracket protrudes towards the direction close to the organic light emitting device, so that at least part of the extended second electrode layer 104 is in contact with and electrically connected to at least part of the second part, thereby realizing the electrical connection between the second electrode layer 104 and the second part. Wherein 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 modes of the electrical connection between the first electrode layer 102 and the first part 011, and the electrical connection between the second electrode layer 104 and the second part 012. In actual application, other electrical connection modes can also be used, which are not specifically limited here.

[0079] The organic light emitting device provided by the embodiment of the present application is provided with a magnetic layer including a magnetic material, which is used to be magnetically attracted to the first magnetic conductive material of the bracket for fixation, so that the organic light emitting device can be firmly fixed on the bracket and will not be easily detached due to the influence of environmental 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 to be electrically connected to the first part and the second part of the first magnetic conductive material on the bracket, thereby realizing the electrical connection between the first electrode layer and the second electrode layer of the organic light emitting device and the positive electrode and the negative electrode of the external driving circuit, avoiding the situation that the soft wire is easily broken and not conductive due to multiple bending of the soft wire when electrically connected by the soft wire, 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 regions 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 a grid form, 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 regions other than the central region. When the magnetic layer 105 is an integral 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 regions other than the central region.

[0081] In this way, the magnetism of the central region of the magnetic layer 105 is greater than the magnetism of the regions other than the central region, 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 can further comprise a first insulating layer (not shown in the figure), which is arranged 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 arranged in a pattern, for example, the first insulating layer also has an opening corresponding 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. Figures 1 to 4

[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 arranged 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 support through the magnetic layer 105, so that the first electrode layer and the second electrode layer of the organic light emitting device are electrically connected to the positive electrode and the negative electrode of the external driving circuit, without the need to use a flexible flat cable for electrical connection, thereby improving the light emitting reliability of the organic light emitting device.

[0084] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: Figures 1-4

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

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

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

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

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

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

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

[0092] ​​In the embodiment, the second magnetic conductive material can also be a magnetic material doped with a high-conductivity metal or a metal oxide. For example, a magnetic nickel material doped with aluminum, silver, or molybdenum. Here, the high-conductivity metal and the metal oxide can be metals and metal materials with a conductivity greater than or equal to a preset conductivity threshold value, which can be 1.5 x 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 portion of the third portion 1051 exposed to the outside of 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 portion of the fourth portion 1052 exposed to the outside of 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 being magnetically attracted to the first magnetic conductive material on the support, and the fifth portion 1053 is located in the main body area and is disconnected from the third portion 1051 and the fourth portion 1052, respectively.

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

[0095] The auxiliary electrode layer 106 is an auxiliary fast channel of 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 conductivity, such as aluminum Al and molybdenum Mo, etc. The resistance of the metal material is smaller than the resistance of the material of the first electrode layer 102, which can reduce the resistance value of the current flow.

[0096] Optionally, the auxiliary electrode layer 106 can be provided in a grid structure without shielding the light-emitting area.

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

[0098] Optionally, to make the third part 1051 and the fourth part 1052 more convenient to be electrically connected with the first part and the second part of the bracket respectively, at least part of the third part 1051 and the fourth part 1052 can be exposed by the second electrode layer 104 and the light-emitting layer 103, that is, at least part of the third part 1051 and the fourth part 1052 extends and protrudes out of the edge of the second electrode layer 104 and the light-emitting layer 103. Correspondingly, at least part of the first part of the bracket and at least part of the second part of the bracket protrude towards the organic light-emitting device, so that the exposed third part 1051 is in contact with and electrically connected with the first part, and the exposed fourth part 1052 is in contact with and electrically connected with the second part.

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

[0100] In this way, the external driving power source can be electrically connected with the organic light-emitting device, and the current flow path is: the positive electrode of the external driving power source, 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 source.

[0101] In the embodiment, the auxiliary electrode layer is provided as an auxiliary fast channel of the first electrode layer, which can reduce the square resistance, reduce the voltage gradient, and reduce the resistance value of the current flow. The magnetic material of the magnetic layer is set as the second magnetic conductive material, that is, the third part and the fourth part of the magnetic layer can be magnetically attracted and conductive, and at least part of the third part and the fourth part is exposed by the second electrode layer and the light-emitting layer, so that the first electrode layer is electrically connected with the first part through the first auxiliary electrode lead and the exposed third part, and the second electrode layer is electrically connected with the second part through the second auxiliary electrode lead and the exposed fourth part. The above-mentioned mode is more convenient compared with the mode that the first electrode layer and the second electrode layer are electrically connected with the first part and the second part of the bracket based on the provided leads. 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 further comprises a second electrode lead 107, the second electrode lead 107 is located in the same layer as the first electrode layer 102, the substrate 101 comprises 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] The specific way in which the first electrode layer 102 is electrically connected to the third part 1051 through the first auxiliary electrode lead 1061 can be that the first auxiliary electrode lead 1061 extends from the main area to the edge area, at least part of the third part 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 part through the second auxiliary electrode lead 1062 and the exposed fourth part 1052 can be that the second auxiliary electrode lead 1062 is located in the edge area and covers the second electrode lead 107, at least part of the fourth part 1052 is located in the edge area and covers the second auxiliary electrode lead 1062.

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

[0105] Optionally, for example, referring to Figure 1 and Figure 3A , at least part of the first electrode layer 102 extends out of the main area to the edge area outside the main area, the first auxiliary electrode lead 1061 extends from the main area to the edge area, at least part of the third part 1051 is located in the edge area and covers the first auxiliary electrode lead 1061, so that the part of the first electrode layer 102 located in the edge area is covered by the first auxiliary electrode lead 1061, and the first auxiliary electrode lead 1061 is covered by 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 part of the first electrode layer 102 located in the edge area can be in the form of a lead and can comprise a plurality of leads, so that the first auxiliary electrode lead 1061 and the third part 1051 successively covered on the first electrode layer 102 can also be in the form of a lead.

[0107] For example, referring to Figure 1 and Figure 4The light-emitting layer 103 and the second electrode layer 104 are located in the main body 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 can be connected with the fourth part 1052 by setting the leads, so as to realize the electrical connection between the second electrode layer 104 and 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 part 1052. The second electrode lead 107 is in the form of a lead, and can include a plurality of leads. In this way, the second auxiliary electrode lead 1062 and the fourth part 1052, which are sequentially covered on the electrode lead, are also in the form of leads.

[0109] Optionally, the first electrode layer 102, the first auxiliary electrode lead 1061 and the third part 1051 as a whole can be provided with a second insulating layer 111 between another whole of the second electrode lead 107, the second auxiliary electrode lead 1062 and the fourth part 1052, and the second insulating layer 111 is used for electrically isolating the two wholes.

[0110] In the embodiment, by setting 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, at least part of the third part is located in the edge area and covers the first auxiliary electrode lead, the electrical connection between the first electrode layer and the third part through the first auxiliary electrode lead can be realized. At the same time, the exposed third part is in contact with and electrically connected to the first part, which improves the convenience of the electrical connection between the first electrode layer and the first part of the support.

[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. At least part of the fourth part is located in the edge area and covers the second auxiliary electrode lead, so as to realize the electrical connection between the second electrode layer and 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 the electrical connection between the second electrode layer and the second part of the support, that is, the convenience of the electrical connection between the organic light-emitting device and the first magnetic conductive material of the support, thereby improving the convenience of the electrical connection between the organic light-emitting device and the external driving circuit.

[0112] In some embodiments, the second electrode layer 104 can be electrically connected to the second auxiliary electrode lead 1062 and the fourth portion 1052 in the following manner: the second electrode layer 104 is provided with a lap joint lead 109 on the side close to the edge region, and the second electrode layer 104 is electrically connected to the second auxiliary electrode lead 1062 and the fourth portion 1052 through the lap joint lead 109.

[0113] With reference to Figure 4 In the present embodiment, the second electrode layer 104 is provided with a lap joint lead 109 on the side close to the edge region, and the material of the lap joint lead 109 can be the same as or different from that of the second electrode layer 104. The lap joint lead 109 can 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, the first electrode layer 102 can be electrically connected to the first auxiliary electrode lead 1061 in the following manner: the first auxiliary electrode lead 1061 and the first electrode layer 102 are connected by punching, for example, the organic light-emitting device can further include a fifth insulating layer, which is arranged between the first electrode layer 102 and the auxiliary electrode layer 106 and extends from the main body region to the edge region, for electrically isolating the first electrode layer 102 and the auxiliary electrode layer 106. The first auxiliary electrode lead 1061 can be provided with a first through hole, and an insulating layer is arranged on the inner side of the first through hole. The first through hole can be filled with the material of the first electrode layer or other conductive material, so that the first electrode layer 102 and the first auxiliary electrode lead 1061 are electrically connected.

[0115] The fifth insulating layer can be patterned, for example, the fifth insulating layer is also provided with an opening corresponding to the light-emitting region of the light-emitting layer 103, so that the fifth insulating layer does not affect the light emission 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, and the fifth portion 1053 is located in the main body region and is disconnected from the third portion 1051 and the fourth portion 1052, respectively.

[0117] In the embodiment, the fifth part 1053 far from the surface of the light emitting layer 103 can be provided with a third insulating layer, and the third insulating layer is provided with an opening corresponding to the light emitting area of the light emitting layer 103, so that the third insulating layer does not affect the light emitting of the light emitting layer 103. Since the fifth part 1053 of the magnetic layer 105 is located in the main body area and is disconnected with the third part 1051 and the fourth part 1052 respectively, and the first insulating layer is arranged on the surface of the light emitting layer 103 adjacent to the fifth part 1053, and the third insulating layer is arranged on the surface of the light emitting layer 103 far from the fifth part 1053, the fifth part 1053 is not electrically connected with other layers or parts, and the fifth part 1053 only has magnetism and is used for magnetic attraction with the first magnetic conductive material on the support. In this way, the fifth part 1053 of the magnetic layer 105 is only used for magnetic attraction, and the third part 1051 and the fourth part 1052 of the magnetic layer 105 are used for magnetic attraction and electrical conduction.

[0118] Among them, the third part, the fourth part and the fifth part can be disconnected through the fourth insulating layer 110.

[0119] In some embodiments, the organic light emitting device can further include an encapsulation layer arranged on the side of the second electrode layer 104 far from the light emitting layer 103, for protecting the organic light emitting device.

[0120] Figure 5 is a structural schematic diagram of an organic light emitting device provided by another embodiment of the present application. Figure 6 is a cross-sectional view along the cross-sectional line CC' in Figure 5 . Figure 7 is a cross-sectional view along the cross-sectional line DD' in Figure 5 . As shown in Figure 5 , the organic light emitting device can include:

[0121] a substrate 101;

[0122] a first electrode layer 102 arranged on one side of the substrate 101;

[0123] a light emitting layer 103 arranged on the side of the first electrode layer 102 far from the substrate 101;

[0124] a second electrode layer 104 arranged on the side of the light emitting layer 103 far from the first electrode layer 102;

[0125] a magnetic layer 105 arranged between the substrate 101 and the second electrode layer 104, or arranged on the side of the second electrode layer 104 far from the light emitting layer 103, and the magnetic layer 105 includes a magnetic material;

[0126] The magnetic layer 105 is used to magnetically attract the first magnetic conductive material on the support of the fixed organic light emitting device, the first magnetic conductive material includes a first part and a second part which are disconnected, the first electrode layer 102 is used to electrically connect with the first part, and the second electrode layer 104 is used to electrically connect with the second part.

[0127] In addition, the encapsulation layer 108 is arranged on the side of the second electrode layer 104 away from the light emitting layer 103, the central region 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, and the encapsulation layer 108 is used to magnetically attract the first magnetic conductive material on the support.

[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 the figures. Figure 5

[0129] The related 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 in the embodiment can refer to the foregoing embodiments, and will not be described here again.

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

[0131] Illustratively, the encapsulation layer 108 is used to protect the organic light emitting device, 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 support 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 support, the encapsulation layer 108 is also arranged to magnetically attract the first magnetic conductive material on the support, so that the magnetic property of the organic light emitting device is stronger, and the organic light emitting device can be more firmly fixed on the support.

[0132] In some embodiments, the peripheral region F2 of the encapsulation layer 108 is provided with a third magnetic conductive material, the peripheral region F2 includes a sixth part 1081 and a seventh part 1082 which are disconnected, the sixth part 1081 respectively contacts and electrically connects with the second part and the second electrode layer 104, the seventh part 1082 contacts and electrically connects with the first part and the first electrode layer 102.

[0133] In the embodiment, as Figure 5 ​As shown, the vertical projection of the surrounding region F2 onto the substrate 101 is the same as the vertical projection of the first electrode layer 102 onto 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 aluminum, silver, or molybdenum. In this way, the disconnected sixth portion 1081 and seventh portion 1082 included in the surrounding region F2 can be both magnetically attracted and electrically 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 support, thereby realizing the electrical connection between the second electrode layer 104 and the second part of the support, that is, realizing the electrical connection between the second electrode layer 104 of the organic light-emitting device and the negative electrode of the external driving circuit.

[0135] Refer to Figure 2. Figure 5 and Figure 7 The seventh part 1082 is in contact with and electrically connected to the first part, and is also electrically connected to the first electrode layer 102. The seventh part 1082 can be in contact with and electrically connected to the first electrode layer 102 by means of drilling (e.g.,...). Figure 7 As shown, the second electrode layer 104, the light-emitting layer 103, and the magnetic layer 105 have a second through-hole 112. An insulating material is disposed on the inner surface of the second through-hole 112. The second through-hole 112 can be filled with the material of the first electrode layer 102 or other conductive materials, thereby achieving electrical connection between the first electrode layer 102 and the seventh part 1082 through the second through-hole 112. In this way, electrical connection between the first electrode layer 102 and the first part of the support can be achieved, that is, the first electrode layer 102 of the organic light-emitting device can be electrically connected to the positive electrode of the external driving circuit.

[0136] In this embodiment, the sixth portion 1081 of the surrounding area F2 of the encapsulation layer 108 contacts and is electrically connected to the second portion and the second electrode layer 104, respectively, eliminating the need for additional leads and improving the ease of electrical connection between the second electrode layer 104 and the second portion of the bracket. The seventh portion 1082 of the surrounding area F2 of the encapsulation layer 108 contacts and is electrically connected to the first portion, and is also electrically connected to the first electrode layer 102, improving the ease of electrical connection between the first electrode layer 102 and the first portion of the bracket. Furthermore, since the sixth portion 1081 and the seventh portion 1082 are magnetic, the magnetic attraction between the organic light-emitting device and the bracket is enhanced, allowing the organic light-emitting device to be more firmly fixed on the bracket.

[0137] This application also provides an organic light-emitting device, which includes a support and an organic light-emitting device.

[0138] The bracket is provided with a first magnetic conductive material, the first magnetic conductive material comprises a first part and a second part, the first part is used for electrically connecting with the first electrode layer, and the second part is used for electrically connecting with the second electrode layer. The first magnetic conductive material is powered by an external driving circuit.

[0139] In the embodiment, the organic light-emitting device can be any of the organic light-emitting devices provided in the foregoing embodiments, and the related description and principle of the organic light-emitting device can refer to the foregoing embodiments, which will not be described here. The related description and principle of the bracket can refer to the foregoing embodiments, which will not be described here.

[0140] The organic light-emitting device provided in the embodiment can be firmly fixed on the bracket and will not be easily detached due to the influence of environmental temperature and flatness of the bracket. The organic light-emitting device can be electrically connected with the first magnetic conductive material of the bracket, avoiding the situation that the soft wire is easily broken and not conductive due to multiple bending, and improving the light-emitting reliability of the organic light-emitting device.

[0141] In the foregoing embodiments, the description of each embodiment has its own focus, and the parts not described or recorded in a certain embodiment can refer to the related description of other embodiments.

[0142] 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 the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; 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 light emitting device, characterized by, The organic light emitting device comprises: a substrate; a first electrode layer disposed on one side of the substrate; a light emitting layer disposed on a side of the first electrode layer away from the substrate; a second electrode layer 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 to be magnetically attracted to a first magnetic conductive material on a support for fixing the organic light emitting device, the first magnetic conductive material comprises a first part and a second part which are disconnected, the first electrode layer is used to be electrically connected to the first part, and the second electrode layer is used to be electrically connected to the second part.

2. The organic light emitting device according to claim 1, wherein The magnetic material is a second magnetic conductive material; and 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 comprises a third part and a fourth part which are disconnected; and the auxiliary electrode layer comprises a first auxiliary electrode lead and a second auxiliary electrode lead which are disconnected; the second electrode layer and the light emitting layer expose at least part of the third part and the fourth part; the first electrode layer is electrically connected to the third part through the first auxiliary electrode lead, and the exposed third part is in contact with and electrically connected to the first part; the second electrode layer is electrically connected to the second part through the second auxiliary electrode lead and the exposed fourth part.

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

4. The organic light-emitting device according to claim 3, characterized in that, A lap joint lead is disposed on a side of the second electrode layer close to the edge area, and the second electrode layer is electrically connected to the second auxiliary electrode lead and the fourth part through the lap joint lead.

5. The organic light-emitting device according to claim 3, characterized in that, The magnetic layer further comprises a fifth part for being magnetically attracted to the first magnetic conductive material on the support; 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 fifth part has a lower electrical conductivity than the third part; the fifth part has a lower electrical conductivity than the fourth part.

6. The organic light emitting device of claim 1, wherein, The arrangement density of the magnetic material in a central area of the magnetic layer is greater than the arrangement density of the magnetic material in areas other than the central area, or the magnetic strength of the magnetic material in the central area of the magnetic layer is greater than the magnetic strength of the magnetic material in areas other than the central area; the magnetic material comprises at least one ferromagnetic material selected from nickel, iron and cobalt.

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

8. The organic light emitting device of claim 1, wherein Further comprising an encapsulation layer arranged on the side of the second electrode layer away from the light-emitting layer; The central region of the encapsulation layer is provided with a magnetic material or at least one layer of the encapsulation layer is a magnetic layer, and the encapsulation layer is used for magnetic attraction with the first magnetic conductive material on the support.

9. The organic light-emitting device according to claim 8, characterized in that, The peripheral region of the encapsulation layer is provided with a third magnetic conductive material; The peripheral region comprises a disconnected sixth part and a seventh part; The sixth part is in contact with and electrically connected to the second part and the second electrode layer respectively; The seventh part is in contact with and electrically connected to the first part and the first electrode layer.

10. An organic light-emitting device, characterized in that, The organic light-emitting device comprises a support and the organic light-emitting device according to any one of claims 1 to 9; The support 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 for electrical connection with the first electrode layer, and the second part is used for electrical connection with the second electrode layer; The first magnetic conductive material is powered by an external driving circuit.

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