CN217405454U - Inorganic electroluminescent device and light emitting apparatus - Google Patents
Inorganic electroluminescent device and light emitting apparatus Download PDFInfo
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- CN217405454U CN217405454U CN202123269150.7U CN202123269150U CN217405454U CN 217405454 U CN217405454 U CN 217405454U CN 202123269150 U CN202123269150 U CN 202123269150U CN 217405454 U CN217405454 U CN 217405454U
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Abstract
The application provides an inorganic electroluminescent device and a light-emitting device, and relates to the technical field of electroluminescence. The inorganic electroluminescent device is formed on a substrate and comprises an electrode layer, a dielectric layer, a light-emitting layer, a transparent conductive layer and a protective layer which are sequentially stacked on the substrate; wherein the substrate is a transparent substrate or a non-transparent substrate. The technical scheme of the application can solve the technical problems that the inorganic electroluminescent device needs to depend on a transparent conductive substrate and the preparation process is complex.
Description
Technical Field
The present disclosure relates to electroluminescent technologies, and particularly to an inorganic electroluminescent device and a light emitting apparatus.
Background
At present, inorganic electroluminescent devices need to rely on transparent conductive substrates, need to be indirectly applied to non-transparent structures through the transparent substrates, and have complex preparation processes and poor firmness.
SUMMERY OF THE UTILITY MODEL
An object of the embodiments of the present application is to provide an inorganic electroluminescent device and a light emitting apparatus, so as to solve the technical problem that the inorganic electroluminescent device needs to rely on a transparent conductive substrate and the manufacturing process is complicated.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
in a first aspect, the present application provides an inorganic electroluminescent device formed on a substrate, the inorganic electroluminescent device comprising: an electrode layer, a dielectric layer, a light-emitting layer, a transparent conductive layer and a protective layer which are sequentially arranged on the substrate in a laminated manner; wherein the substrate is a transparent substrate or a non-transparent substrate.
In some modified embodiments of the first aspect of the present application, the electrode layer, the dielectric layer, the light-emitting layer, and the transparent conductive layer are formed by any one of lithography, flexography, gravure, screen printing, and inkjet printing.
In some variations of the first aspect of the present application, the protective layer is formed by uv-curing varnish sprayed on the surface of the transparent conductive layer and cured by uv-drying.
A second aspect of the present application provides a light emitting device, a substrate; the inorganic electroluminescent device is formed on the surface of the substrate; wherein the substrate is a transparent substrate or a non-transparent substrate.
In some variations of the second aspect of the present application, the substrate is used to form the openable packaging structure with a packaging space, and the electroluminescent device is located outside the packaging space.
In some variations of the second aspect of the present application, the substrate is a non-transparent substrate.
In some variations of the second aspect of the present application, the substrate has a plurality of die cut indentations for forming the packaging structure by lamination with a forming machine.
In some modified embodiments of the second aspect of the present application, the method further comprises: and the power supply equipment is arranged in the packaging space, and an electrode layer and a transparent conducting layer of the inorganic electroluminescent device are respectively connected to the power supply equipment through leads.
In some modified embodiments of the second aspect of the present application, the substrate is provided with at least one through hole, which is provided adjacent to the electroluminescent device, for passing through the wires connected between the electrode layer and the transparent conductive layer and the power supply device.
In some modified embodiments of the second aspect of the present application, the package structure includes a main body and an upper cover that are opened and closed with each other, the package space is formed between the upper cover and the main body, and the inorganic electroluminescent device is disposed on a surface of the upper cover that faces away from the package space.
Compared with the prior art, the inorganic electroluminescent device and the light-emitting device provided by the application have the advantages that the inorganic electroluminescent device adopts a structure that the electrode layer, the dielectric layer, the light-emitting layer, the transparent conducting layer and the protective layer are sequentially stacked, light is emitted through one side where the protective layer is located, the inorganic electroluminescent device can be directly formed on the non-transparent substrate, namely the inorganic electroluminescent device can be directly formed on the non-transparent light-emitting device, the transparent substrate is not required to be relied on, the process difficulty can be simplified, and the firmness of combination of the inorganic electroluminescent device and the light-emitting device is improved.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 schematically shows a schematic structural diagram of an inorganic electroluminescent device provided by an embodiment of the present invention;
fig. 2 schematically illustrates a structural diagram of a light emitting device provided by an embodiment of the present invention;
fig. 3 schematically shows a schematic structural diagram of a light-emitting device provided by an embodiment of the present invention before molding.
The reference numbers illustrate:
inorganic electroluminescent device 1, electrode layer 11, dielectric layer 12, luminescent layer 13, transparent conducting layer 14, protective layer 15, wire 16, light emitting device 2, substrate 21, die-cut indentation 211, power supply 22.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
Example one
Referring to fig. 1 to 2, an embodiment of the present invention provides an inorganic electroluminescent device formed on a substrate 21, the inorganic electroluminescent device 1 including: an electrode layer 11, a dielectric layer 12, a light-emitting layer 13, a transparent conductive layer 14, and a protective layer 15, which are sequentially stacked on the substrate 21; wherein the substrate 21 is a transparent substrate 21 or a non-transparent substrate 21.
Specifically, the inorganic electroluminescent device 1 provided in this embodiment may be directly formed on a substrate 21, where the substrate 21 is used for forming a packaging structure, a display board, a construction icon, a table top lighting, a leather lighting, an electronic device lighting, and the like, and the substrate may be a transparent substrate 21, or may also be a non-transparent substrate 21; referring to fig. 1, which is a schematic exploded view of an inorganic electroluminescent device 1, the structure of the inorganic electroluminescent device 1 includes: the inorganic electroluminescent device 1 can emit light from the side where the protective layer 15 is located, and the principle of light emission is as follows: a voltage is applied between the electrode layer 11 and the transparent conducting layer 14, electrons in a deep energy level state on the contact surface of the light emitting layer 13 and the dielectric layer 12 tunnel to the light emitting layer 13, then the electrons are accelerated under the action of an electric field, part of the electrons are accelerated to be high enough to become 'hot electrons', the 'hot electrons' collide and excite a light emitting center, and the light emitting center releases photons in the process of returning from an excited state to a ground state to emit visible light.
According to the above list, the embodiment of the present invention provides an inorganic electroluminescent device 1, which adopts the structure that the electrode layer 11, the dielectric layer 12, the luminescent layer 13, the transparent conductive layer 14 and the protective layer 15 are stacked in sequence, and emits light through one side of the protective layer 15, and can be directly formed on the non-transparent substrate 21, i.e. can be directly formed on the non-transparent light emitting device 2, without relying on the transparent substrate 21, which can simplify the process difficulty, and is favorable for improving the firmness of the combination of the inorganic electroluminescent device 1 and the light emitting device 2.
In a specific embodiment, the electrode layer, the dielectric layer 12, the light-emitting layer 13, and the transparent conductive layer 14 are formed by any one of lithography, flexography, gravure, screen printing, and inkjet printing.
Further, in specific implementation, the protective layer 15 is formed by spraying ultraviolet curing varnish on the surface of the transparent conductive layer 14 and curing the varnish by ultraviolet drying.
Specifically, the transparent electrode layer 11, the electrode layer 11 and the light emitting layer 13 may be made of transparent electrode offset printing ink, light emitting layer 13 offset printing ink and dielectric layer 12 offset printing ink, and the manufacturing steps of the inorganic electroluminescent device 1 provided in this embodiment may be: firstly, printing electrode offset printing ink on a substrate 21 in a lithographic printing mode, drying for 20min at 100 ℃ to obtain an electrode layer 11, and leading out a lead 16 on the electrode layer 11; printing the offset printing ink of the dielectric layer 12 on the electrode layer 11 in a lithographic printing mode, drying for 20min at 100 ℃, printing for three times in the same method, and finally drying for 45min at 100 ℃ to obtain the dielectric layer 12; printing offset printing ink of the light-emitting layer 13 on the dielectric layer 12 in a lithographic printing mode, drying for 20min at 100 ℃, printing twice in the same method, and finally drying for 45min at 100 ℃ to obtain the light-emitting layer 13; printing the transparent electrode offset printing ink on the luminescent layer 13 in a lithographic printing mode, drying for 20min at 100 ℃ to obtain a transparent electrode layer 11, and leading out a lead 16 on the transparent electrode layer 11; and finally, spraying ultraviolet curing gloss oil on the transparent electrode layer 11, and performing ultraviolet drying and curing for 20s to obtain a protective layer 15, so as to form the complete inorganic electroluminescent device 1. Or the like, or, alternatively,
specifically, the transparent electrode layer 11, the electrode layer 11, and the light emitting layer 13 may be made of transparent electrode flexo ink, light emitting layer 13 flexo ink, and dielectric layer 12 flexo ink, and the manufacturing steps of the inorganic electroluminescent device 1 provided in this embodiment may be: firstly, printing electrode flexo printing ink on a substrate 21 in a flexo printing mode, drying for 20min at 100 ℃ to obtain an electrode layer 11, and leading out a lead 16 on the electrode layer 11; printing the flexo printing ink of the dielectric layer 12 on the electrode layer 11 in a flexo printing mode, drying for 20min at 100 ℃, printing for three times in the same method, and finally drying for 45min at 100 ℃ to obtain the dielectric layer 12; printing the flexible printing ink of the light-emitting layer 13 on the dielectric layer 12 in a flexible printing mode, drying for 20min at 100 ℃, printing twice in the same method, and finally drying for 45min at 100 ℃ to obtain the light-emitting layer 13; printing the transparent electrode flexo printing ink on the light emitting layer 13 in a flexo printing mode, drying for 20min at 100 ℃ to obtain a transparent electrode layer 11, and leading out a lead 16 on the transparent electrode layer 11; and finally, spraying ultraviolet curing gloss oil on the transparent electrode layer 11, and performing ultraviolet drying and curing for 20s to obtain a protective layer 15, so as to form the complete inorganic electroluminescent device 1. Or the like, or, alternatively,
specifically, the transparent electrode layer 11, the electrode layer 11, and the luminescent layer 13 may be made of transparent electrode gravure ink, luminescent layer 13 gravure ink, and dielectric layer 12 gravure ink, and the manufacturing steps of the inorganic electroluminescent device 1 provided in this embodiment may be: firstly, printing electrode gravure ink on a substrate 21 in a gravure printing mode, drying for 20min at 100 ℃ to obtain an electrode layer 11, and leading out a lead 16 on the electrode layer 11; printing gravure ink of the dielectric layer 12 on the electrode layer 11 in a gravure printing mode, drying for 20min at 100 ℃, printing for three times in the same method, and finally drying for 45min at 100 ℃ to obtain the dielectric layer 12; printing gravure ink of the light-emitting layer 13 on the dielectric layer 12 in a gravure printing mode, drying for 20min at 100 ℃, printing twice in the same method, and finally drying for 45min at 100 ℃ to obtain the light-emitting layer 13; printing transparent electrode gravure ink on the luminescent layer 13 in a gravure printing mode, drying for 20min at 100 ℃ to obtain a transparent electrode layer 11, and leading out a lead 16 on the transparent electrode layer 11; and finally, spraying ultraviolet curing gloss oil on the transparent electrode layer 11, and performing ultraviolet drying and curing for 20s to obtain a protective layer 15, so as to form the complete inorganic electroluminescent device 1. Or the like, or, alternatively,
specifically, the transparent electrode layer 11, the electrode layer 11, and the light emitting layer 13 may be made of transparent electrode screen printing ink, light emitting layer 13 screen printing ink, and dielectric layer 12 screen printing ink, and the manufacturing steps of the inorganic electroluminescent device 1 provided in this embodiment may be as follows: firstly, printing electrode silk-screen printing ink on a substrate 21 in a silk-screen printing mode, drying for 20min at 100 ℃ to obtain an electrode layer 11, and leading out a lead 16 on the electrode layer 11; printing screen printing ink of the dielectric layer 12 on the electrode layer 11 in a screen printing mode, drying for 20min at 100 ℃, printing for three times in the same method, and finally drying for 45min at 100 ℃ to obtain the dielectric layer 12; printing the silk-screen printing ink of the light-emitting layer 13 on the dielectric layer 12 in a silk-screen printing mode, drying for 20min at 100 ℃, printing twice in the same method, and finally drying for 45min at 100 ℃ to obtain the light-emitting layer 13; printing transparent electrode silk-screen printing ink on the light-emitting layer 13 in a silk-screen printing mode, drying for 20min at 100 ℃ to obtain a transparent electrode layer 11, and leading out a lead 16 on the transparent electrode layer 11; and finally, spraying ultraviolet curing gloss oil on the transparent electrode layer 11, and performing ultraviolet drying and curing for 20s to obtain a protective layer 15, so as to form the complete inorganic electroluminescent device 1. Or the like, or a combination thereof,
specifically, the transparent electrode layer 11, the electrode layer 11, and the light emitting layer 13 may be made of transparent electrode inkjet printing ink, light emitting layer 13 screen printing ink, and dielectric layer 12 screen printing ink, and the manufacturing steps of the inorganic electroluminescent device 1 provided in this embodiment may be as follows: firstly, printing electrode ink-jet printing ink on a substrate 21 in an ink-jet printing mode, drying for 20min at 100 ℃ to obtain an electrode layer 11, and leading out a lead 16 on the electrode layer 11; printing screen printing ink of the dielectric layer 12 on the electrode layer 11 in a screen printing mode, drying for 20min at 100 ℃, printing for three times in the same method, and finally drying for 45min at 100 ℃ to obtain the dielectric layer 12; printing the silk-screen printing ink of the light-emitting layer 13 on the dielectric layer 12 in a silk-screen printing mode, drying for 20min at 100 ℃, printing twice in the same method, and finally drying for 45min at 100 ℃ to obtain the light-emitting layer 13; printing the transparent electrode ink-jet printing ink on the luminescent layer 13 in an ink-jet printing mode, drying for 20min at 100 ℃ to obtain a transparent electrode layer 11, and leading out a lead 16 on the transparent electrode layer 11; and finally, spraying ultraviolet curing gloss oil on the transparent electrode layer 11, and performing ultraviolet drying and curing for 20s to obtain a protective layer 15, so as to form the complete inorganic electroluminescent device 1.
The inorganic electroluminescent device 1 provided by the embodiment can be manufactured by any one of the processes, the manufacturing process is simple, and the manufactured inorganic electroluminescent device 1 is simple in structure, stable in performance, high in luminous intensity, capable of meeting the normal display requirement and long in service life.
Example two
Referring to fig. 2 to 3, a first embodiment of the present invention provides a light emitting device 2, where the light emitting device 2 includes: a substrate 21; the inorganic electroluminescent device 1 is formed on the surface of the substrate 21; wherein the substrate 21 is a transparent substrate 21 or a non-transparent substrate 21.
Specifically, the light emitting device 2 provided in this embodiment may be, but not limited to, a package structure, a display board, a desktop, etc., the substrate 21 may be a transparent substrate 21 or a non-transparent substrate 21, and when the substrate 21 is the non-transparent substrate 21, the material thereof may be, but not limited to, paper, fabric, plastic, metal, etc., and the following description will take the light emitting device 2 as a paper or plastic package box as an example, the electrode layer 11 of the inorganic electroluminescent device 1 may be directly formed on the substrate 21, so that the transparent substrate 21 is not required, the process difficulty may be simplified, and the firmness of the combination of the inorganic electroluminescent device 1 and the light emitting device 2 may be improved; fig. 2 illustrates a disassembled state of the inorganic electroluminescent device 1.
Further, referring to fig. 2, in an implementation, the substrate 21 is used to form the openable and closable packaging structure 2 with a packaging space, and the electroluminescent device is located outside the packaging space.
Specifically, in the technical solution adopted by the present invention, the base 21 can form the packaging structure 2 which has a packaging space and can be opened and closed, and the electroluminescent device is formed outside the packaging space, i.e. exposed outside the packaging structure 2, so as to improve the functionality and the appearance of the packaging structure 2; the packaging structure 2 may be shaped as a cuboidal box-like structure.
Further, with reference to fig. 3, in a specific implementation, the base 21 has a plurality of die-cut indentations 211 for forming the packaging structure 2 by lamination with a forming machine.
Specifically, for making basement 21 into the packing carton structure, the utility model discloses in the technical scheme who takes, can cut into appointed shape with basement 21 according to packaging structure 2's shape to inorganic electroluminescent device 1 forms on the assigned position on basement 21 surface, and goes up die-cutting impression 211 on basement 21, and send into the make-up machine and fold into packaging structure 2.
Further, referring to fig. 2, in a specific implementation, the light emitting device 2 provided in this embodiment further includes: and a power supply device 22 disposed in the packaging space, wherein the electrode layer 11 and the transparent conductive layer 14 of the inorganic electroluminescent device 1 are respectively connected to the power supply device 22 through wires 16.
Specifically, in order to realize effective light emission of the inorganic electroluminescent layer 13 of the light emitting device 2, the present invention adopts a technical solution that a power supply device 22 is further disposed in the packaging space of the packaging structure 2, and the wires 16 led out from the electrode layer 11 of the inorganic electroluminescent device 1 and the wires 16 led out from the transparent conductive layer 14 are respectively connected to the power supply device 22, so as to provide electric quantity to the conductive layer and the transparent conductive layer 14 through the power supply device 22; the power supply device 22 can be fixed in the packaging space of the packaging structure 2 by means of gluing, or a groove adapted to the power supply device 22 can be arranged in the packaging space to fix the power supply device 22; fig. 2 illustrates only the connection relationship between the lead 16 and the power supply device 22, and does not limit the installation position of the power supply device 22.
Further, in a specific implementation, the substrate 21 is provided with at least one through hole, and the through hole is disposed adjacent to the electroluminescent device and is used for penetrating the lead 16 connected between the electrode layer 11 and the transparent conductive layer 14 and the power supply device 22.
Specifically, in order to realize being connected of electrode layer 11 and transparent conducting layer 14 and power supply unit 22 to and improve the aesthetic property of 2 outward appearances of packaging structure, the utility model discloses in the technical scheme who takes, can set up the through-hole on basement 21, the quantity of this through-hole can be two, is used for respectively wearing to establish two wires 16, or can set up a through-hole that the size can wear to establish two wires 16 simultaneously, be used for wearing to establish two wires 16 simultaneously, with the through-hole and the adjacent setting of electroluminescent device, can reduce wire 16 and show the length in 2 outsides of packaging structure, be favorable to improving packaging structure 2's aesthetic property.
Further, referring to fig. 3, in a specific implementation, the package structure 2 includes a main body and an upper cover that are opened and closed with each other, the package space is formed between the upper cover and the main body, and the inorganic electroluminescent device 1 is disposed on a surface of the upper cover that is away from the package space.
Specifically, in order to realize packaging structure 2's convenient packing function, packaging structure 2 adopts the packing mode that can open and shut, the utility model discloses in the technical scheme who takes, packaging structure 2 includes the upper cover that main part and main part are connected, the opening part in the main part is connected to the upper cover, can seal the opening of main part, and form the packaging space between the main part, can pack the protection to the structure that needs the packing, and set up inorganic electroluminescent device 1 on the upper cover, and be located the surface that the upper cover deviates from packaging structure 2, when user uses packaging structure 2, the most directly perceived visible surface, can the user of being convenient for utilize inorganic electroluminescent device 1, and be favorable to improving packaging structure 2's aesthetic property.
It should be noted that in the description of the present specification, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An inorganic electroluminescent device formed on a substrate, comprising:
an electrode layer, a dielectric layer, a light-emitting layer, a transparent conductive layer and a protective layer which are sequentially arranged on the substrate in a laminated manner;
wherein the substrate is a transparent substrate or a non-transparent substrate.
2. The inorganic electroluminescent device according to claim 1,
the electrode layer, the dielectric layer, the light emitting layer and the transparent conductive layer are formed by any one of lithography, flexography, gravure, screen printing and inkjet printing.
3. The inorganic electroluminescent device according to claim 1,
the protective layer is formed by spraying ultraviolet curing gloss oil on the surface of the transparent conductive layer and drying and curing the ultraviolet curing gloss oil.
4. A light-emitting device, comprising:
a substrate;
the inorganic electroluminescent device as claimed in any one of claims 1 to 3, formed on a surface of the substrate;
wherein the substrate is a transparent substrate or a non-transparent substrate.
5. The lighting device according to claim 4,
the substrate is used for forming a foldable packaging structure with a packaging space, and the electroluminescent device is positioned on the outer side of the packaging space.
6. The lighting device according to claim 4,
the substrate is a non-transparent substrate.
7. The lighting device of claim 5,
the base is provided with a plurality of die-cut indentations so as to form the packaging structure through superposition of a forming machine.
8. The light-emitting device according to claim 5, further comprising:
and the power supply equipment is arranged in the packaging space, and the electrode layer and the transparent conducting layer of the inorganic electroluminescent device are respectively connected to the power supply equipment through leads.
9. The lighting device according to claim 8,
the substrate is provided with at least one through hole, and the through hole is arranged adjacent to the electroluminescent device and used for penetrating through the electrode layer and the wire connected between the transparent conducting layer and the power supply equipment.
10. The lighting device according to claim 5,
the packaging structure comprises a main body and an upper cover which are mutually opened and closed, the packaging space is formed between the upper cover and the main body, and the inorganic electroluminescent device is arranged on the surface of the upper cover, which is deviated from the packaging space.
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| CN202123269150.7U CN217405454U (en) | 2021-12-23 | 2021-12-23 | Inorganic electroluminescent device and light emitting apparatus |
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| CN202123269150.7U CN217405454U (en) | 2021-12-23 | 2021-12-23 | Inorganic electroluminescent device and light emitting apparatus |
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| CN217405454U true CN217405454U (en) | 2022-09-09 |
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