Patent Publication Number: US-2023165115-A1

Title: Organic light-emitting diode device and manufacturing method thereof

Description:
BACKGROUND 
     Field of Invention 
     The present disclosure relates to a field of display technology, and more particularly, to an organic light-emitting diode device and a manufacturing method. 
     Description of the Prior Art 
     Organic light-emitting diodes (OLEDs) have advantages of light weight, wide viewing angles, fast response times, low temperature resistance, high luminous efficiency, and so on, compared with traditional liquid crystal display panels. The OLEDs have been regarded as a next generation of new display technology in a display industry. Particularly, that the OLEDs can be made into flexible devices which can be bent by using flexible substrates is a huge advantage unique to the OLEDs. Thin-film encapsulation (TFE) technology is an essential core technology to realize the OLEDs&#39; advantage in flexible displays. 
     A fatal killer of the OLEDs is an existence of external water and oxygen in an environment. Invasion pathways of the external water and oxygen can be divided into two categories: a first invasion pathway is that the external water and oxygen penetrates a TFE film layer from top to bottom into a display panel; a second invasion pathway is that the external water and oxygen invades into the OLED from a side of the TFE film layer. Therefore, for the TFE technology, a most important thing is a property to effectively block the external water and oxygen. On this basis, optical penetration and flexible bending properties of the TFE film layer should also be taken in account. 
     As shown in  FIG.  1   , a common display panel includes a glass base  91 , an array substrate  92 , a light-emitting layer  93 , and a thin-film encapsulation layer  94 , wherein the thin-film encapsulation layer  94  includes a first inorganic layer  941 , an organic layer  942 , and a second inorganic layer  943 , which are disposed as a sandwich film structure and is a common TFE film layer structure in the industry. A water vapor transmission rate (WVTR) of the sandwich film structure can be less than 5 E-4 g/m2/day in the industry. Blocking the external water and oxygen from penetrating into the display panel is mainly accomplished via the first inorganic layer and the second inorganic layer, but with the addition of the organic layer to realize a flexible bending property and other properties, a film of the organic layer being loose and porous and does not have any ability to block the external water and oxygen, therefore, the display panel has a poor external water and oxygen blocking effect. 
     In a prior art, an aluminum oxide layer and a polypropylene (PP) layer are used to form a laminated film layer in the thin-film encapsulation structure. This laminated film layer has a good external water and oxygen blocking property in theory, but in a real manufacturing process it cannot effectively wrap unavoidable foreign objects. So that actual external water and oxygen blocking effect tends to be worse. 
     In a prior art, a structure of the thin-film encapsulation layer specifically includes a first inorganic layer, a first organic layer, a second inorganic layer, a second organic layer, and a third inorganic layer, wherein the first inorganic layer is made of aluminum oxide. The structure of the thin-film encapsulation layer has a main disadvantage is that such an overlapping design structure of inorganic layers and organic layers is too thick, resulting in a relatively poor bending ability. The thin-film encapsulation layer tends to be excessively stressed, and may even cause a light-emitting film layer under the display panel to separate, going against a long-term development of a flexible display panel. 
     SUMMARY 
     The present disclosure provides an organic light-emitting diode device and a manufacturing method thereof to further improve an external water and oxygen blocking property of a thin-film encapsulation layer. 
     To solve the problem above, the present disclosure provides an organic light-emitting diode device including an array substrate, a light-emitting layer and a thin-film encapsulation layer stacked in order from bottom to top. The thin-film encapsulation layer is disposed on the light-emitting layer and is completely covering the light-emitting layer. Wherein the thin-film encapsulation layer includes a first inorganic layer, an organic layer, a second inorganic layer, and at least one dielectric structure layer. Specifically, the first inorganic layer is disposed on the light-emitting layer. The organic layer is disposed on the first inorganic layer. The second inorganic layer is disposed on the organic layer. The dielectric structure layers are disposed in the thin-film encapsulation layer. 
     Further, the dielectric structure layers are disposed between the organic layer and the first inorganic layer, or the dielectric structure layers are disposed between the organic layer and the second inorganic layer, or the dielectric structure layers are disposed in the organic layer. 
     Further, the dielectric structure layers are disposed between the organic layer and the first inorganic layer, and the dielectric structure layers are disposed between the organic layer and the second inorganic layer. 
     Further, the dielectric structure layers are disposed between the organic layer and the first inorganic layer, and the dielectric structures are disposed in the organic layer. 
     Further, the dielectric structure layers are disposed between the organic layer and the second inorganic layer, and the dielectric structure layers are disposed in the organic layer. 
     Further, the dielectric structure layers are disposed between the organic layer and the first inorganic layer, and the dielectric structure layers are disposed between the organic layer and the second inorganic layer, and the dielectric structure layers are disposed in the organic layer. 
     Further, the dielectric structure layers are manufactured by an atomic layer deposition method. 
     The present disclosure also provides a manufacturing method of an organic light-emitting diode device, including steps of: a step of providing an array substrate; a step of disposing a light-emitting layer on the substrate; and a step of disposing a thin-film encapsulation layer on the light-emitting layer; wherein the step of disposing a thin-film encapsulation layer on the light-emitting layer includes steps of: a step of disposing a first inorganic layer on the light-emitting layer; a step of disposing an organic layer on the first inorganic layer; and a step of disposing a second inorganic layer on the organic layer; wherein the step of disposing the thin-film encapsulation layer on the light-emitting layer further includes: a step of disposing at least one dielectric structure layer in the thin-film encapsulation layer by an atomic layer deposition method. 
     Further, the step of disposing at least one dielectric structure layer in the thin-film encapsulation layer by the atomic layer deposition method includes depositing one or more of silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), and silicon oxide (SiO) in a stack combination by the atomic layer deposition method. 
     Further, the step of disposing at least one dielectric structure layer in the thin-film encapsulation layer by an atomic layer deposition method includes: a step of disposing a first organic layer on the first inorganic layer; a step of disposing the dielectric structure layer on the first organic layer; and a step of disposing the second organic layer on the dielectric structure layer; wherein the step of disposing the dielectric structure layer on the first organic layer and the step of disposing the second organic layer on the dielectric structure layer are performed at least once. 
     Advantages of the present disclosure is to provide the organic light-emitting diode device and a manufacturing method thereof. Defects of the organic layer can be covered very well, and the external water and oxygen blocking property of the thin-film encapsulation layer can be further improved by depositing at least one very thin and dense dielectric structure layer in the thin-film encapsulation layer. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG.  1    is a schematic structural diagram of a present display panel. 
         FIG.  2    is a schematic structural diagram of an organic light-emitting diode device according to a first embodiment. 
         FIG.  3    is a schematic structural diagram of a manufacturing method of an organic light-emitting diode device according to a first embodiment. 
         FIG.  4    is a schematic structural diagram of a manufacturing step of a thin-film encapsulation layer according to a first embodiment. 
         FIG.  5    is a comparison result of a water vapor transmission rate of an organic light-emitting diode device according to a first embodiment and a traditional organic light-emitting diode device having a sandwich TFE film layer structure. 
         FIG.  6    is a schematic structural diagram of an organic light-emitting diode device according to a second embodiment. 
         FIG.  7    is a schematic diagram of a manufacturing method of an organic light-emitting diode device according to a second embodiment. 
         FIG.  8    is a schematic structural diagram of an organic layer according to a third embodiment. 
         FIG.  9    is a schematic diagram of a manufacturing step of a thin-film encapsulation layer according to a third embodiment. 
         FIG.  10    is a schematic diagram of a step of manufacturing at least one dielectric structure layer according to a third embodiment. 
         FIG.  11    is a schematic structural diagram of an organic light-emitting diode device according to a fourth embodiment. 
         FIG.  12    is a schematic diagram of a manufacturing step of a thin-film encapsulation layer according to a fourth embodiment. 
         FIG.  13    is a schematic structural diagram of an organic light-emitting diode device according to a fifth embodiment. 
         FIG.  14    is a schematic structural diagram of an organic light-emitting diode device according to a sixth embodiment. 
         FIG.  15    is a schematic structural diagram of an organic light-emitting diode device according to a seventh embodiment. 
     
    
    
     Some major elements in the drawings are as follows: 
     1, array substrate;  2 , light-emitting layer;  3 , thin-film encapsulation layer;  20 , thin-film transistor;  21 , first organic common layer;  22 , electroluminescent layer;  23 , second organic common layer;  30 , dielectric structure layer;  31 , first inorganic layer;  32 , organic layer;  33 , second inorganic layer;  100 , organic light-emitting diode device;  101 , glass base;  102 , flexible base;  103 , buffer layer;  104 , pixel definition layer;  201 , active layer;  202 , gate insulating layer;  203 , gate layer;  204 , insulating layer;  205 , source and drain electrode;  206 , planarization layer;  207 , anode;  321 , first organic layer;  322 , second organic layer. 
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     In the present invention, unless specified or limited otherwise, a structure in which a first feature is “on” or “below” a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other, but are contacted via an additional feature formed there between. Furthermore, a first feature “on”, “above” or “on top of” a second feature may include an embodiment in which the first feature is right or obliquely “on”, “above” or “on top of” the second feature, or just means that the first feature is at a height higher than that of the second feature; while a first feature “below”, “under” or “on bottom of” a second feature may include an embodiment in which the first feature is right or obliquely “below”, “under” or “on bottom of” the second feature, or just means that the first feature is at a height lower than that of the second feature. 
     Same or corresponding components are denoted by the same reference numerals and are not related to the numbers of the figures. In the full text of the description, when the terms “first” and “second” are used to describe various components, these components are not necessarily limited to the above terms. The above terms are used only to distinguish one component from another. 
     A First Embodiment 
     Please refer to  FIG.  2   , an embodiment of the present disclosure provides an organic light-emitting diode device  100  including an array substrate  1 , a light-emitting layer  2 , and a thin-film encapsulation layer  3  stacked from bottom to top. Wherein the light-emitting layer  2  is disposed on the array substrate  1 , and the thin-film encapsulation layer  3  is disposed on the light-emitting layer  2  and completely covers the light-emitting layer  2 . 
     The array substrate  1  is preferably a flexible substrate, and includes a glass base  101 , a flexible base  102 , a buffer layer  103 , a plurality of thin-film transistors  20 , and a pixel definition layer  104 . 
     The glass base  101  is a glass base in the prior art. Material of the flexible base  102  is mainly polyimide (PI) which can effectively improve a light transmittance. Each of the plurality of thin-film transistors  20  includes an active layer  201 , a gate insulating layer  202 , a gate layer  203 , an insulating layer  204 , a source and drain electrode  205 , a planarization layer  206 , and an anode  207 . Specifically, doped regions are disposed at both ends of the active layer  201 , and the doped regions can be doped with P-type impurities or N-type impurities to form a connection region of a source and drain electrode of a metal oxide semiconductor (MOS) tube, and to connect to the source and drain electrode  205 . The gate insulating layer  202  is configured to insulate the source and drain electrode  205  and the gate layer  203  to avoid a contact between two electrodes which makes a short circuit. The insulating layer  204  is disposed on upper surfaces of the gate insulating layer  202  and the gate layer  203  and is penetrated by the source and drain electrode  205 . The planarization layer  206  is disposed on upper surfaces of the source and drain electrode  205  and the insulating layer  204 . The anode  207  is disposed on upper surfaces of the planarization layer  206  and is electrically connected to a drain electrode of the source and drain electrode  205 . The planarization layer  206  is generally made of polymethyl methacrylate and nanoparticle composites and has a better heat resistance. The pixel definition layer  104  is disposed on the upper surfaces of planarization layer  206  and the anode  207 . The light-emitting layer  2  is disposed on an upper surface of the pixel definition layer  104 . 
     The light-emitting layer  2  includes a first organic common layer  21 , an electroluminescent layer  22 , and a second organic common layer  23  in a stack. The electroluminescent layer  22  specifically includes a hole injection layer (HIL), a hole transport layer (HTL), an organic emitting layer (EML), an electron transport layer (ETL), and an electron injection layer (EIL). 
     As shown in  FIG.  2   , the thin-film encapsulation layer  3  includes a first inorganic layer  31 , an organic layer  32 , a second inorganic layer  33 , and at least one dielectric structure layer  30  in a stack. Specifically, the first inorganic layer  31  is disposed on the light-emitting layer  2 . The organic layer  32  is disposed on the first inorganic layer  31 . The second inorganic layer  33  is disposed on the organic layer  32 . The dielectric structure layer  30  is disposed in the thin-film encapsulation layer  3 . According to embodiment, the dielectric structure layer  30  is disposed between the organic layer  32  and the first inorganic layer  31 . 
     External water and oxygen can easily invade into the organic light-emitting diode device  100  from the first inorganic layer  31  or the second inorganic layer  33 , since a film of the organic layer  32  is loose and porous, and does not have any ability to block external water and oxygen. Therefore, disposing the dielectric structure layer  30  between the first inorganic layer  31  and the organic layer  32  can prevent the external water and oxygen from passing through the organic layer  32  and continue intruding into the organic light-emitting diode device  100 . Therefore, an external water and oxygen barrier property can be improved, and a performance of the thin-film encapsulation layer can be improved. 
     According to the embodiment, a material of the dielectric structure layer  30  is one or more of silicon nitride (SiN), silicon oxynitride (SiON), silicon carbo nitride (SiNC), and silicon oxide (SiO) in a stack combination. According to the embodiment, the dielectric structure layer  30  is made by an atomic layer deposition method. According to the embodiment, a thickness of the dielectric structure layer  30  is less than 200 nanometer (nm). 
     Please refer to  FIG.  2    and  FIG.  3   , an embodiment of the present disclo sure also provides a manufacturing method of the organic light-emitting diode devic e  100  including steps of: 
     S 1 , a step of providing the array substrate  1 . 
     S 2 , a step of disposing a light-emitting layer  2  on the substrate  1 . The light-emitting layer  2  specifically includes the first organic common layer  21 , the electroluminescent layer  22 , and the second organic common layer  23  in a stack. The electroluminescent layer  22  specifically includes the hole injection layer (HIL), the hole transport layer (HTL), the organic emitting layer (EML), the electron transport layer (ETL), and the electron injection layer (EIL) stacked in order from bottom to top. 
     S 3 , a step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2 . 
     Please refer to  FIG.  4   , the step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2  includes following steps of S 311 -S 314 : 
     S 311 , a step of disposing the first inorganic layer  31  on the light-emitting layer  2 . The first inorganic layer  31  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). 
     S 312 , a step of disposing the dielectric structure layer  30  on the first inorganic layer  31 . 
     S 313 , a step of disposing the organic layer  32  on the dielectric structure layer  30 . The organic layer  32  is made of a layer of organic material deposited on the dielectric structure layer  30  by an inkjet printing (IJP), a chemical vapor deposition (CVD) or an evaporation. The organic material includes Hexamethyldisiloxane (HMDSO), alucone, epoxy resin, acrylic, or silicon-containing organic matter. 
     S 314 , a step of disposing a second inorganic layer  33  on the organic layer  32 . 
     The second inorganic layer  33  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). 
     Wherein the step of disposing the dielectric structure layer  30  on the first inorganic layer  31  includes depositing one or more of silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), and silicon oxide (SiO) in a stack combination by the atomic layer deposition method. 
     Please refer to  FIG.  5   ,  FIG.  5    is a comparison result of a water vapor transmission rate (WVTR) of the organic light-emitting diode device  100  according to the first embodiment of the present disclosure and a traditional organic light-emitting diode device having a sandwich TFE film layer structure. It can be seen that the WVTR is significantly improved and an effect of blocking external water and oxygen is possessed after the dielectric structure layer  30  is disposed. 
     A Second Embodiment 
     Please refer to  FIG.  6   , the organic light-emitting diode device including most of technical features in the first embodiment is provided according to the embodiment of the present disclosure. A difference is that that the dielectric structure layer  30  is disposed between the organic layer  32  and the second inorganic layer  33 , instead of the dielectric structure layer  30  being only disposed between the organic layer  32  and the first inorganic layer  31 . 
     As shown in  FIG.  6   , the thin-film encapsulation layer  3  of the organic light-emitting diode device  100  includes the first inorganic layer  31 , the organic layer  32 , the dielectric structure layer  30 , and the second inorganic layer  33  from bottom to top. 
     Since the film of the organic layer  32  is loose and porous and does not have any ability to block external water and oxygen, the dielectric structure layer  30  disposed between the organic layer  32  and the second inorganic layer  33  can enhance a density of the organic layer  32 , thereby improving the external water and oxygen barrier property of the organic layer  32 , and improving the external water and oxygen barrier property of the thin-film encapsulation layer  3 . 
     Please refer to  FIG.  3   , a manufacturing method of the organic light-emitting diode device is also provided according to the embodiment of the present disclosure, and includes following steps S 1 -S 3 : S 1 , a step of providing the array substrate  1 . S 2 , a step of disposing the light-emitting layer  2  on the substrate  1 . S 3 , a step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2 . 
     Please refer to  FIG.  6    and  FIG.  7    at the same time, the step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2  includes following steps S 321 -S 324 : 
     S 321 , a step of disposing the first inorganic layer  31  on the light-emitting layer  2 . The first inorganic layer  31  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). 
     S 322 , a step of disposing the organic layer  32  on the first inorganic layer  31 . 
     The organic layer  32  is made of a layer of organic material deposited on the dielectric structure layer  30  by an inkjet printing (IJP), a chemical vapor deposition (CVD) or an evaporation. The organic material includes Hexamethyldisiloxane (HMDSO), alucone, epoxy resin, acrylic, or silicon-containing organic matter. 
     S 323 , a step of disposing the dielectric structure layer  30  on the organic layer  32 . 
     S 324 , a step of disposing the second inorganic layer  33  on the dielectric structure layer  30 . The second inorganic layer  33  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). 
     A difference between the steps S 311 -S 314  according to the first embodiment and the steps S 321 -S 24  is the manufacturing method of the display panel according to the second embodiment. The step of disposing the dielectric structure layer  30  on the organic layer  32  is performed after the step of disposing the organic layer  32  on the first inorganic layer  31 . That is, the dielectric structure layer  30  is only disposed between the organic layer  32  and the first inorganic layer  31 . 
     Defects of the organic layer  32  can be covered very well according to the embodiment, and the external water and oxygen blocking property of the thin-film encapsulation layer  3  can be further improved. 
     A Third Embodiment 
     A display panel including most of technical features in the first embodiment or the second embodiment is provided according to the embodiment of the disclosure. A difference is that that the dielectric structure layer  30  is also disposed in the organic layer  32  according to the second embodiment. 
     As shown in  FIG.  8   , the organic layer  32  includes the first organic layer  321  and the second organic layer  322 , and the dielectric structure layer  30  is disposed between the first organic layer  321  and the second organic layer  322 . 
     Since the film of the organic layer  32  is loose and porous and does not have any ability to block the external water and oxygen, the dielectric structure layer  30  is disposed in the organic layer  32  can enhance a density and the external water and oxygen barrier property of the organic layer  32 , thereby improving the external water and oxygen barrier property of the thin-film encapsulation layer  3 . 
     A manufacturing method of the organic light-emitting diode device  100  is also provided according to the embodiment of the present disclosure, and includes following steps S 1 -S 3 : S 1 , a step of providing the array substrate  1 . S 2 , a step of disposing the light-emitting layer  2  on the substrate  1 . S 3 , a step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2 . 
     Please refer to  FIG.  8    and  FIG.  9    at the same time, the step S 3  of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2  includes following steps S 331 -S 333 : 
     S 331 , a step of disposing the first inorganic layer  31  on the light-emitting layer  2 . The first inorganic layer  31  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). 
     S 332 , a step of disposing the organic layer  32  on the first inorganic layer  31 . 
     S 333 , a step of disposing the second inorganic layer  33  on the organic layer  32 . The second inorganic layer  33  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). 
     According to the embodiment, the step of disposing the organic layer  32  on the first inorganic layer  31  includes: disposing at least one dielectric structure layer  30  in the organic layer  32 . That the dielectric structure layer  30  is disposed in the organic layer  32  can enhance a density and the external water and oxygen barrier property of the organic layer  32 , thereby improving the external water and oxygen barrier property of the thin-film encapsulation layer  3 . 
     Please refer to  FIG.  10   , the step S 322  of disposing at least one dielectric structure layer  30  in the organic layer  32  includes: 
     S 3321 , a step of disposing the first organic layer  321  on the first inorganic layer  31 . The first organic layer  321  is made of a layer of organic material by an inkjet printing (IJP), a chemical vapor deposition (CVD) or an evaporation. The organic material includes Hexamethyldisiloxane (HMDSO), alucone, epoxy resin, acrylic, or silicon-containing organic matter. 
     S 3322 , a step of disposing the dielectric structure layer  30  on the first organic layer  321 . The dielectric structure layer  30  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). Material of the dielectric structure layer  30  is one or more of silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), and silicon oxide (SiO) in a stack combination. 
     S 3323 , a step of disposing the second organic layer  322  on the dielectric structure layer  30 . The second organic layer  322  is made of a layer of organic material by an inkjet printing (IJP), a chemical vapor deposition (CVD) or an evaporation. The organic material includes Hexamethyldisiloxane (HMDSO), alucone, epoxy resin, acrylic, or silicon-containing organic matter. 
     Wherein the step S 3322  of disposing the dielectric structure layer  30  on the first organic layer  321  and the step S 3323  of disposing the second organic layer  322  are performed at least once. 
     A Fourth Embodiment 
     As shown in  FIG.  11   , a display panel including  100  all technical features in the first embodiment and the second embodiment is provided according to the embodiment of the disclosure. A difference is that that the fourth embodiment is a combination of the first embodiment and the second embodiment. That is, the dielectric structure layer  30  is disposed between the organic layer  32  and the first inorganic layer  31  and is disposed between the organic layer  32  and the second inorganic layer  33 . 
     As shown in  FIG.  11   , the thin-film encapsulation layer  3  of the organic light-emitting diode device  100  includes the first inorganic layer  31 , the dielectric structure layer  30 , the organic layer  32 , the dielectric structure layer  30 , and the second inorganic layer  33  from bottom to top. 
     Please refer to  FIG.  3   , a manufacturing method of the organic light-emitting diode device  100  is also provided according to the embodiment of the present disclosure, and includes following steps S 1 -S 3 : S 1 , a step of providing the array substrate  1 . S 2 , a step of disposing the light-emitting layer  2  on the substrate  1 . S 3 , a step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2 . 
     Please refer to  FIG.  11    and  FIG.  12    at the same time, the step S 3  of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2  includes following steps S 341 -S 345 : 
     S 341 , a step of disposing the first inorganic layer  31  on the light-emitting layer  2 . The first inorganic layer  31  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). 
     S 342 , a step of disposing the dielectric structure layer  30  on the first inorganic layer  31 . 
     S 343 , a step of disposing the organic layer  32  on the dielectric structure layer  30 . The organic layer  32  is made of a layer of organic material deposited on the dielectric structure layer  30  by an inkjet printing (IJP), a chemical vapor deposition (CVD) or an evaporation. The organic material includes Hexamethyldisiloxane (HMDSO), alucone, epoxy resin, acrylic, or silicon-containing organic matter. 
     S 344 , a step of disposing the dielectric structure layer  30  on the organic layer  32 . 
     S 345 , a step of disposing the second inorganic layer  33  on the dielectric structure layer  30 . The second inorganic layer  33  is made of a layer of inorganic material having a thickness of less than 2 um deposited on the light-emitting layer  2  by a chemical vapor deposition (CVD) or a physical vapor deposition (PVD). The inorganic material includes silicon nitride (SiN), silicon oxynitride (SiON), silicon carbonitride (SiNC), or silicon oxide (SiO). 
     Defects of the organic layer  32  can be covered very well according to the embodiment, and the external water and oxygen blocking property of the thin-film encapsulation layer  3  can be further improved. 
     A Fifth Embodiment 
     Please refer to  FIG.  13   , the organic light-emitting diode device  100  including all technical features in the first embodiment and the third embodiment is provided according to the embodiment of the present disclosure. A difference is that that the fourth embodiment is a combination of the first embodiment and the third embodiment. That is, the dielectric structure layer  30  is disposed between the organic layer  32  and the first inorganic layer  31  and is disposed in the organic layer  32 . 
     As shown in  FIG.  13   , the thin-film encapsulation layer  3  of the organic light-emitting diode device  100  includes the first inorganic layer  31 , the dielectric structure layer  30 , the organic layer  32 , and the second inorganic layer  33  from bottom to top. The organic layer  32  includes the first organic layer  321  and the second organic layer  322 , and the dielectric structure layer  30  is disposed between the first organic layer  321  and the second organic layer  322 . 
     Please refer to  FIG.  3   , a manufacturing method of the organic light-emitting diode device  100  is also provided according to the embodiment of the present disclosure, and includes following steps S 1 -S 3 : S 1 , a step of providing the array substrate  1 . S 2 , a step of disposing the light-emitting layer  2  on the substrate  1 . S 3 , a step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2 . 
     Please refer to  FIG.  4   ,  FIG.  9    and  FIG.  13    at the same time, the step S 3  of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2 , as shown in  FIG.  4   , includes following steps S 311 -S 314 : S 311 , a step of disposing the first inorganic layer  31  on the light-emitting layer S 312 , a step of disposing the dielectric structure layer  30  on the first inorganic layer  31 . S 313 , a step of disposing the organic layer  32  on the dielectric structure layer  30 . S 314 , a step of disposing a second inorganic layer  33  on the organic layer  32 . According to the embodiment, please refer to  FIG.  9   , the step of disposing at least one dielectric structure layer  30  in the organic layer  32  includes: S 3321 , a step of disposing the first organic layer  321  on the first inorganic layer  31 , a step of disposing the dielectric structure layer  30  on the first organic layer  321 . S 3323 , a step of disposing the second organic layer  322  on the dielectric structure layer  30 . Wherein the step S 3322  of disposing the dielectric structure layer  30  on the first organic layer  321  and the step S 3323  of disposing the second organic layer  322  are performed at least once. 
     Defects of the organic layer  32  can be covered very well according to the embodiment, and the external water and oxygen blocking property of the thin-film encapsulation layer  3  can be further improved. 
     A Sixth Embodiment 
     Please refer to  FIG.  14   , the organic light-emitting diode device  100  including all technical features in the second embodiment and the third embodiment is provided according to the embodiment of the present disclosure. A difference is that that the sixth embodiment is a combination of the second embodiment and the third embodiment. That is, the dielectric structure layer  30  is disposed between the organic layer  32  and the second inorganic layer  33  and is disposed in the organic layer  32 . 
     As shown in  FIG.  14   , the thin-film encapsulation layer  3  of the organic light-emitting diode device  100  includes the first inorganic layer  31 , the organic layer  32 , the dielectric structure layer  30 , and the second inorganic layer  33  from bottom to top. The organic layer  32  includes the first organic layer  321  and the second organic layer  322 , and the dielectric structure layer  30  is disposed between the first organic layer  321  and the second organic layer  322 . 
     Please refer to  FIG.  3   , a manufacturing method of the organic light-emitting diode device  100  is also provided according to the embodiment of the present disclosure, and includes following steps S 1 -S 3 : S 1 , a step of providing the array substrate  1 . S 2 , a step of disposing a light-emitting layer  2  on the substrate  1 . S 3 , a step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2 . 
     Please refer to  FIG.  7   ,  FIG.  9    and  FIG.  14    at the same time, the step S 3  of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2  includes following steps S 321 -S 324 : S 321 , a step of disposing the first inorganic layer  31  on the light-emitting layer  2 . S 322 , a step of disposing the organic layer  32  on the first inorganic layer  31 . S 323 , a step of disposing the dielectric structure layer  30  on the organic layer  32 . S 324 , a step of disposing the second inorganic layer  33  on the dielectric structure layer  30 . Please refer to  FIG.  9   , the step of disposing the dielectric structure layer  30  on the organic layer  32  includes: S 3321 , a step of disposing the first organic layer  321  on the first inorganic layer  31 . S 3322 , a step of disposing the dielectric structure layer  30  on the first organic layer  321 . S 3323 , a step of disposing the second organic layer  322  on the dielectric structure layer  30 . Wherein the step S 3322  of disposing the dielectric structure layer  30  on the first organic layer  321  and the step S 3323  of disposing the second organic layer  322  are performed at least once. 
     Defects of the organic layer  32  can be covered very well according to the embodiment, and the external water and oxygen blocking property of the thin-film encapsulation layer  3  can be further improved. 
     A Seventh Embodiment 
     Please refer to  FIG.  15   , the organic light-emitting diode device  100  including all technical features in the first embodiment, the second embodiment and the third embodiment is provided according to the embodiment of the present disclosure. A difference is that that seventh embodiment is a combination of the first embodiment, the second embodiment and the third embodiment. That is, the dielectric structure layer  30  is disposed between the organic layer  32  and the first inorganic layer  31 , and the dielectric structure layer  30  is disposed between the organic layer  32  and the second inorganic layer  33 , and the dielectric structure layer  30  is disposed in the organic layer  32 . 
     As shown in  FIG.  15   , the thin-film encapsulation layer  3  of the organic light-emitting diode device  100  includes the first inorganic layer  31 , the dielectric structure layer  30 , the organic layer  32 , the dielectric structure layer  30 , and the second inorganic layer  33  from bottom to top. The organic layer  32  includes the first organic layer  321  and the second organic layer  322 , and the dielectric structure layer  30  is disposed between the first organic layer  321  and the second organic layer  322 . 
     Please refer to  FIG.  3   , a manufacturing method of the organic light-emitting diode device  100  is also provided according to the embodiment of the present disclosure, and includes following steps S 1 -S 3 : S 1 , a step of providing the array substrate  1 . S 2 , a step of disposing the light-emitting layer  2  on the substrate  1 . S 3 , a step of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2 . 
     Please refer to  FIG.  9   ,  FIG.  12    and  FIG.  15    at the same time, the step S 3  of disposing the thin-film encapsulation layer  3  on the light-emitting layer  2  includes following steps S 341 -S 345 : S 341 , a step of disposing the first inorganic layer  31  on the light-emitting layer  2 . S 342 , a step of disposing the dielectric structure layer  30  on the first inorganic layer  31 . S 343 , a step of disposing the organic layer  32  on the dielectric structure layer  30 . S 344 , a step of disposing the dielectric structure layer  30  on the organic layer  32 . S 345 , a step of disposing the second inorganic layer  33  on the dielectric structure layer  30 . According to the embodiment, as shown in  FIG.  9   , the step of disposing the organic layer  32  on the dielectric structure layer  30  includes: S 3321 , a step of disposing the first organic layer  321  on the first inorganic layer  31 , a step of disposing the dielectric structure layer  30  on the first organic layer  321 . S 3323 , a step of disposing the second organic layer  322  on the dielectric structure layer  30 . Wherein the step S 3322  of disposing the dielectric structure layer  30  on the first organic layer  321  and the step S 3323  of disposing the second organic layer  322  are performed at least once. 
     Defects of the organic layer  32  can be covered very well according to the embodiment, and the external water and oxygen blocking property of the thin-film encapsulation layer  3  can be further improved. 
     Advantages of the present disclosure is to provide the organic light-emitting diode device and a manufacturing method thereof. Defects of the organic layer can be covered very well, and the external water and oxygen blocking property of the thin-film encapsulation layer  3  can be further improved by depositing at least one very thin and dense dielectric structure layer in the thin-film encapsulation layer. 
     The present disclosure is described in detail in accordance with the above contents with the specific preferred examples. However, this present disclosure is not limited to the specific examples. For a person of ordinary skill in the art, on the premise of keeping the conception of the present disclosure, the technical personnel can also make simple deductions or replacements, all of which should be considered to belong to the protection scope of the present disclosure.