CN104218175A - Organic light emission diode device - Google Patents
Organic light emission diode device Download PDFInfo
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- CN104218175A CN104218175A CN201310210072.4A CN201310210072A CN104218175A CN 104218175 A CN104218175 A CN 104218175A CN 201310210072 A CN201310210072 A CN 201310210072A CN 104218175 A CN104218175 A CN 104218175A
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- sealing ring
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- organic light
- cover plate
- electroluminescence device
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Abstract
The invention relates to an organic light emission diode device which comprises a substrate, an organic light emission unit and a package cover plate, the package cover plate and the substrate are arranged at intervals, the organic light emission unit is arranged on the substrate and between the substrate and the package cover plate, the organic light emission diode device is characterized by also comprising a protective layer, a first sealing ring and a second sealing ring, the organic light emission unit covers a part of the surface of the substrate, the protective layer is arranged on the surface of the organic light emission unit, the first sealing ring is arranged on the substrate and sleeves the organic light emission unit, two opposite side surfaces of the first sealing ring are respectively and fixedly connected with the substrate and the package cover plate, the second sealing ring is arranged on the substrate and sleeves the first sealing ring, two opposite side surfaces of the second sealing ring are respectively and fixedly connected with the substrate and the package cover plate, and the material of the protective layer is bio (3- Methyl butyl) beryllium. The service life of the device is long.
Description
Technical field
The present invention relates to electroluminescent technology field, particularly relate to a kind of organic electroluminescence device.
Background technology
Along with the environmental protection energy, the development trend of mobile communication and information displaying, current organic electroluminescent (OLED) display lighting technical development is more and more rapider, along with the expansion of application.
Stabilized illumination is that can OLED luminescent device the first-selected problem needing to solve of commercial applications.Because the most organic substances in OLED luminescent layer are all very responsive for the water in air, oxygen molecule, easily make compound hydro lyses or oxidation in organic layer, thus organic molecule is degraded, lose its corresponding function in OLED, thus cause OLED to lose efficacy.Therefore, need the sealing being ensured OLED inside by encapsulation, reduce as much as possible and the water of external environment condition, the contact of oxygen molecule.For the OLED of rigid substrates, usual employing glass cover-plate or metal cover board encapsulation, hermetically-sealed construction is formed by UV glue bond, because these cover plate materials itself have good barrier property, but originally easily there are some defects when solidification in UV glue, cause water, oxygen molecule can penetrate UV glue and arrive OLED inside, thus make component failure, useful life is shorter.
Summary of the invention
Based on this, be necessary, for shorter problem in the useful life of existing organic electroluminescence device, to provide the organic electroluminescence device that a kind of useful life is longer.
A kind of organic electroluminescence device, comprise substrate, organic light-emitting units and encapsulation cover plate, described encapsulation cover plate and described substrate interval are arranged, described organic light-emitting units to be arranged on described substrate and between described substrate and described cap, also comprise protective layer, first sealing ring and the second sealing ring, described organic light-emitting units covers the part surface of described substrate, described protective layer is arranged on described organic light-emitting units on the surface, described first sealing ring to be arranged on described substrate and be sheathed on described organic light-emitting units and two of described first sealing ring relative sides respectively with described substrate and described encapsulation cover plate affixed, described second sealing ring to be arranged on described substrate and be sheathed on described first sealing ring and two of described second sealing ring relative sides respectively with described substrate and described encapsulation cover plate affixed, wherein, protective layer material is two (3-methyl butyl) beryllium, and described first sealing ring material is Photocurable adhesive and water absorbing agent composition, and the material of described second sealing ring is Photocurable adhesive.
Wherein in an embodiment, the spacing of described organic light-emitting units edge and described first sealing ring is described 5 millimeters ~ 20 millimeters, and the spacing of the first sealing ring and described second sealing ring is 5 millimeters ~ 20 millimeters.
Wherein in an embodiment, the width of the first sealing ring is 1 millimeter ~ 5 millimeters.
Wherein in an embodiment, the width of described second sealing ring is 0.2 millimeter ~ 2 millimeters.
Wherein in an embodiment, described protective layer thickness is 50nm ~ 500nm.
Wherein in an embodiment, described water absorbing agent is selected from least one in calcium oxide, strontium oxide strontia and barium monoxide.
Wherein in an embodiment, the mass ratio of described water absorbing agent and described Photocurable adhesive is 1:100 ~ 3:10.
Wherein in an embodiment, described Photocurable adhesive is selected from least one in epobond epoxyn, acrylic ester adhesive or type siloxane Photocurable adhesive.
Wherein in an embodiment, the particle diameter of described water absorbing agent is 100 nanometer ~ 800 nanometers.
The organic light-emitting units of above-mentioned organic electroluminescence device and protective layer are contained in by substrate, first sealing ring, in the airtight host cavity that second sealing ring and encapsulation cover plate surround, substrate and encapsulation cover plate all have good barrier property, first sealing ring and the second sealing ring play the effect of being bonded and sealed, can be formed the water and oxygen infiltrating host cavity inside and stop, and the first sealing ring can absorb the hydrone infiltrating its inside, second sealing ring can seal, the protective layer be arranged on encapsulation cover plate can eliminate the oxygen in seal process, thus effectively avoid hydrone and oxygen molecule to spread in host cavity, thus reduce water Oxygen permeation effect, effectively can protect the organic light emission list in host cavity, make the useful life of this organic electroluminescence longer.
Accompanying drawing explanation
Fig. 1 is the profile of the organic electroluminescence device of an execution mode;
Fig. 2 eliminates the vertical view of encapsulation cover plate for the organic electroluminescence device shown in Fig. 1.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
Refer to Fig. 1, the organic electroluminescence device 100 of an execution mode, comprise substrate 10, organic light-emitting units 20, first sealing ring 30, second sealing ring 40, protective layer 50 and encapsulation cover plate 60.Substrate 10 and encapsulation cover plate 60 interval are arranged, and organic light-emitting units 20 is arranged on substrate 10 and between substrate 10 and encapsulation cover plate 60, organic light-emitting units 20 is linked together by protective layer 50 and encapsulation cover plate 60.
Substrate 10 and encapsulation cover plate 60 are glass substrate.
Organic light-emitting units 20 comprises the anode (not shown) stacked gradually on substrate 10, hole transmission layer (not shown), luminescent layer (not shown), electron injecting layer (not shown) and negative electrode (not shown).
Anode is formed by indium tin oxide (ITO).The thickness of anode is 100 nanometers.
Hole transmission layer is formed by N, N'-diphenyl-N, N'-bis-(1-naphthyl)-1,1'-biphenyl-4,4'-diamines (NPB).The thickness of hole transmission layer is 50 nanometers.
Luminescent layer is formed by (oxine)-aluminium (Alq3), and (oxine)-aluminium (Alq3) has electronic transmission performance, and luminescent layer has luminescence and electronic transmission performance concurrently.The thickness of luminescent layer is 30 nanometers.
Electron injecting layer is formed by lithium fluoride (LiF).The thickness of electron injecting layer is 1 nanometer.
Negative electrode is formed by argent (Ag).The thickness of negative electrode is 100 nanometers.
Organic light-emitting units 20 is arranged on substrate 10, the part surface of covered substrate 10.Preferably, organic light-emitting units 20 is arranged at the middle part of substrate 10.
Organic light-emitting units 20 can rectangle laminated structure, square laminated structure, circular sheet-like structures or oval laminated structure, also can be other irregular shapes.Please refer to Fig. 2, in present embodiment, organic light-emitting units 20 is square laminated structure.
Protective layer 50 is arranged on organic light-emitting units 20 on the surface, and the material of protective layer 50 is two (3-methyl butyl) beryllium, and protective layer 50 thickness is 50nm ~ 500nm.
Encapsulation cover plate 60 is arranged on protective layer 50 on the surface.
Side S1 and the encapsulation cover plate 60 of the first sealing ring 30 are affixed, the side relative with side S1 and substrate 10 affixed.
First sealing ring 30 is made up of Photocurable adhesive and water absorbing agent, makes the first sealing ring 30 have the effect of bonding and water suction concurrently.
Preferably, cure adhesive is epobond epoxyn, acrylic ester adhesive or type siloxane Photocurable adhesive.
Water absorbing agent is selected from least one in calcium oxide (CaO), strontium oxide strontia (SrO) and barium monoxide (BaO).
When absorbent is made up of two or more in above-mentioned substance, the quality of each component is equal.
Preferably, calcium oxide (CaO), strontium oxide strontia (SrO) and barium monoxide (BaO) are the nano particle that particle diameter is 100 nanometer ~ 800 nanometers, fully can mix with Photocurable adhesive.
Preferably, the mass ratio of water absorbing agent and Photocurable adhesive is 1:100 ~ 3:10, to ensure that the first sealing ring 30 has higher water absorbing properties and stronger bonding strength.
Comprehensive bonding strength and cost consideration, the width of the first sealing ring 30 is preferably 1 ~ 5 millimeter.Width is 1 ~ 5 millimeter and refers to that the live width on each limit surrounding the first sealing ring 30 is 1 ~ 5 millimeter, and namely the first sealing ring 30 is being parallel to the thickness in direction of substrate 10.In other embodiments, when the first sealing ring 30 is other shapes, as circular or oval time, refer to and surround circle or oval and live width that is that form the first sealing ring 30 is 1 ~ 5 millimeter.
The marginating compartment of the first sealing ring and organic light-emitting units 20 is arranged, the side N1 of organic light-emitting units 20 and the N2 interval, side of the first sealing ring are arranged as described in Figure 1, wherein, the interval width of the side N1 of organic light-emitting units 20 and the side N2 of the first sealing ring is 5mm ~ 20mm.
Side S2 and the encapsulation cover plate 60 of the second sealing ring 40 are affixed, the side relative with side S2 and substrate 10 affixed.
Second sealing ring 40 is also square circle.Second sealing ring 40 to be arranged on substrate 10 and to be sheathed on the first sealing ring 30.The geometric center of the second sealing ring 40 overlaps with the geometric center of the first sealing ring 30.
Second sealing ring 40 is made up of Photocurable adhesive, plays the effect of bonding.
Preferably, Photocurable adhesive is epobond epoxyn, acrylic ester adhesive or type siloxane Photocurable adhesive.
Comprehensive bonding strength and cost consideration, the width on each limit of the second sealing ring 40 is preferably 0.2mm ~ 2mm.
The spacing of the side N4 of the second sealing ring 40 and the side N3 of the first sealing ring 30 is preferably 5 millimeters ~ 20 millimeters, so that same defect can not be allowed at same position continued propagation.
It should be noted that, the implication of the width of the second sealing ring 40 is identical with the implication of the width of the first sealing ring 30.
Encapsulation cover plate 60 is metal cover board or glass cover-plate.The relative side of two of first sealing ring 30 respectively with substrate 10 and encapsulation cover plate 60 affixed; the relative side of two of second sealing ring 40 respectively with substrate 10 and encapsulation cover plate 60 affixed; encapsulation cover plate 60 is made to be arranged on substrate 10; and forming airtight host cavity with substrate 10, organic light-emitting units 20 and protective layer 50 are contained in host cavity.
The organic light-emitting units 20 of above-mentioned organic electroluminescence device 100 and protective layer 50 are contained in by substrate 10, first sealing ring 30, in the airtight host cavity that second sealing ring 40 and encapsulation cover plate 60 surround, substrate 10 and encapsulation cover plate 60 all have good barrier property, first sealing ring 30 and the second sealing ring 40 play the effect of being bonded and sealed, can be formed the water and oxygen infiltrating host cavity inside and stop, and the first sealing ring 30 can absorb the hydrone infiltrating its inside, second sealing ring 40 can seal, the protective layer 50 be arranged on encapsulation cover plate 60 can eliminate the oxygen in seal process, thus effectively avoid hydrone and oxygen molecule to spread in host cavity, thus reduce water Oxygen permeation effect, effectively can protect the organic light-emitting units 20 in host cavity, make the useful life of this organic electroluminescence device 100 longer.
It is below specific embodiment.
Embodiment 1
Cleaning glass substrate is clean and after drying, vacuum evaporation is adopted to form anode, hole transmission layer, luminescent layer, electron injecting layer and negative electrode on the glass substrate successively, anode, hole transmission layer, luminescent layer, electron injecting layer and negative electrode stack gradually the organic light-emitting units being formed and be laminated on glass substrate, organic light-emitting units is arranged at the middle part of glass substrate, and the part surface of cover glass substrate; Wherein, anode is formed by indium tin oxide, and the thickness of anode is 100 nanometers; Hole transmission layer is formed by N, N'-diphenyl-N, N'-bis-(1-naphthyl)-1,1'-biphenyl-4,4'-diamines, and the thickness of hole transmission layer is 50 nanometers; Luminescent layer is formed by (oxine)-aluminium, and the thickness of luminescent layer is 30 nanometers; Electron injecting layer is formed by lithium fluoride, and the thickness of electron injecting layer is 1 nanometer; Negative electrode is formed by argent, and the thickness of negative electrode is 100 nanometers;
Be CaO and the acrylic resin light curing agent of 100nm by particle diameter be 1:100 according to mass ratio, carry out ultrasonicly being mixed to get the first mixture, by the coating of this first mixture on the glass substrate, the first square circle being sheathed on organic light-emitting units is formed on the glass substrate;
By the coating of acrylic resin light curing agent on the glass substrate, the second square circle being sheathed on the first square circle is formed on the glass substrate;
Using glass substrate as encapsulation cover plate, to place and be 1 × 10 in vacuum degree at encapsulation cover plate
-5in the vacuum coating system of Pa, Evaporation preparation protective layer, material is two (3-methyl butyl) beryllium, thickness is 50nm, evaporation rate is 0.2nm/s, encapsulation cover plate is positioned on cathode surface, and enclose with the first square and the second square circle contacts, irradiate under uv lamps, first square circle solidify to form the first sealing ring being sheathed on organic light-emitting units, second square circle solidify to form the second sealing ring being sheathed on the first sealing ring, the relative side of two of first sealing ring respectively with glass substrate and encapsulation cover plate affixed, the relative side of two of second sealing ring respectively with glass substrate and encapsulation cover plate affixed, thus encapsulation obtains organic electroluminescence device.
In this organic electroluminescence device, the geometric center of the first sealing ring and the geometric center of the second sealing ring overlap, the width of the first sealing ring is 5 millimeters, first sealing ring and organic light-emitting units Distances Between Neighboring Edge Points are 5 millimeters, the spacing of the second sealing ring and the first sealing ring is 5 millimeters, and the width of the second sealing ring is 0.2 millimeter.
Embodiment 2
Cleaning glass substrate is clean and after drying, vacuum evaporation is adopted to form anode, hole transmission layer, luminescent layer, electron injecting layer and negative electrode on the glass substrate successively, anode, hole transmission layer, luminescent layer, electron injecting layer and negative electrode stack gradually the organic light-emitting units being formed and be laminated on glass substrate, organic light-emitting units is arranged at the middle part of glass substrate, and the part surface of cover glass substrate; Wherein, anode is formed by indium tin oxide, and the thickness of anode is 100 nanometers; Hole transmission layer is formed by N, N'-diphenyl-N, N'-bis-(1-naphthyl)-1,1'-biphenyl-4,4'-diamines, and the thickness of hole transmission layer is 50 nanometers; Luminescent layer is formed by (oxine)-aluminium, and the thickness of luminescent layer is 30 nanometers; Electron injecting layer is formed by lithium fluoride, and the thickness of electron injecting layer is 1 nanometer; Negative electrode is formed by argent, and the thickness of negative electrode is 100 nanometers;
Be BaO and the epoxy resin light curing agent of 800nm by particle diameter be 3:10 according to mass ratio, carry out ultrasonicly being mixed to get the first mixture, by the coating of this first mixture on the glass substrate, the first square circle being sheathed on organic light-emitting units is formed on the glass substrate;
By the coating of epoxy resin light curing agent on the glass substrate, the second square circle being sheathed on the first square circle is formed on the glass substrate;
Using glass substrate as encapsulation cover plate, to place and be 1 × 10 in vacuum degree at encapsulation cover plate
-5in the vacuum coating system of Pa, Evaporation preparation protective layer, material is two (3-methyl butyl) beryllium, thickness is 500nm, evaporation rate is 1nm/s, encapsulation cover plate is positioned on cathode surface, and enclose with the first square and the second square circle contacts, irradiate under uv lamps, first square circle solidify to form the first sealing ring being sheathed on organic light-emitting units, second square circle solidify to form the second sealing ring being sheathed on the first sealing ring, the relative side of two of first sealing ring respectively with glass substrate and encapsulation cover plate affixed, the relative side of two of second sealing ring respectively with glass substrate and encapsulation cover plate affixed, thus encapsulation obtains organic electroluminescence device.
In this organic electroluminescence device, the geometric center of the first sealing ring and the geometric center of the second sealing ring overlap, the width of the first sealing ring is 1 millimeter, first sealing ring and organic light-emitting units Distances Between Neighboring Edge Points are 20 millimeters, the spacing of the second sealing ring and the first sealing ring is 20 millimeters, and the width of the second sealing ring is 2 millimeters.
Embodiment 3
Cleaning glass substrate is clean and after drying, vacuum evaporation is adopted to form anode, hole transmission layer, luminescent layer, electron injecting layer and negative electrode on the glass substrate successively, anode, hole transmission layer, luminescent layer, electron injecting layer and negative electrode stack gradually the organic light-emitting units being formed and be laminated on glass substrate, organic light-emitting units is arranged at the middle part of glass substrate, and the part surface of cover glass substrate; Wherein, anode is formed by indium tin oxide, and the thickness of anode is 100 nanometers; Hole transmission layer is formed by N, N'-diphenyl-N, N'-bis-(1-naphthyl)-1,1'-biphenyl-4,4'-diamines, and the thickness of hole transmission layer is 50 nanometers; Luminescent layer is formed by (oxine)-aluminium, and the thickness of luminescent layer is 30 nanometers; Electron injecting layer is formed by lithium fluoride, and the thickness of electron injecting layer is 1 nanometer; Negative electrode is formed by argent, and the thickness of negative electrode is 100 nanometers;
Be SrO and the acrylic resin light curing agent of 500nm by particle diameter be 1:5 according to mass ratio, carry out ultrasonicly being mixed to get the first mixture, by the coating of this first mixture on the glass substrate, the first square circle being sheathed on organic light-emitting units is formed on the glass substrate;
By the coating of polysiloxanes light curing agent on the glass substrate, the second square circle being sheathed on the first square circle is formed on the glass substrate;
Using glass substrate as encapsulation cover plate, to place and be 1 × 10 in vacuum degree at encapsulation cover plate
-5in the vacuum coating system of Pa, Evaporation preparation protective layer, material is two (3-methyl butyl) beryllium, thickness is 200nm, evaporation rate is 0.5nm/s, encapsulation cover plate is positioned on cathode surface, and enclose with the first square and the second square circle contacts, irradiate under uv lamps, first square circle solidify to form the first sealing ring being sheathed on organic light-emitting units, second square circle solidify to form the second sealing ring being sheathed on the first sealing ring, the relative side of two of first sealing ring respectively with glass substrate and encapsulation cover plate affixed, the relative side of two of second sealing ring respectively with glass substrate and encapsulation cover plate affixed, thus encapsulation obtains organic electroluminescence device.
In this organic electroluminescence device, the geometric center of the first sealing ring and the geometric center of the second sealing ring overlap, the width of the first sealing ring is 1 millimeter, first sealing ring and organic light-emitting units Distances Between Neighboring Edge Points are 10 millimeters, the spacing of the second sealing ring and the first sealing ring is 1 millimeter, and the width of the second sealing ring is 10 millimeters.
Comparative example 1
Cleaning glass substrate is clean and after drying, vacuum evaporation is adopted to form anode, hole transmission layer, luminescent layer, electron injecting layer and negative electrode on the glass substrate successively, anode, hole transmission layer, luminescent layer, electron injecting layer and negative electrode stack gradually the organic light-emitting units being formed and be laminated on glass substrate, organic light-emitting units is arranged at the middle part of glass substrate, and the part surface of cover glass substrate; Wherein, anode is formed by indium tin oxide, and the thickness of anode is 100 nanometers; Hole transmission layer is formed by N, N'-diphenyl-N, N'-bis-(1-naphthyl)-1,1'-biphenyl-4,4'-diamines, and the thickness of hole transmission layer is 50 nanometers; Luminescent layer is formed by (oxine)-aluminium, and the thickness of luminescent layer is 30 nanometers; Electron injecting layer is formed by lithium fluoride, and the thickness of electron injecting layer is 1 nanometer; Negative electrode is formed by argent, and the thickness of negative electrode is 100 nanometers;
By the coating of propenoic acid ester photocureable adhesive on the glass substrate, the square circle being sheathed on organic light-emitting units is formed on the glass substrate;
Using metal cover board as encapsulation cover plate, encapsulation cover plate is positioned on glass substrate, and contact with square circle, irradiate under uv lamps, square circle solidify to form the sealing ring being sheathed on organic light-emitting units, the relative side of two of sealing ring respectively with glass substrate and encapsulation cover plate affixed, encapsulation obtains organic electroluminescence device; Wherein, the width of sealing ring is 0.2 millimeter.
Table 1 is the organic electroluminescence device of embodiment 1 ~ 3 and comparative example 1 is 1000cd/m at starting brightness
2under, brightness decay to original intensity 70% time useful life.
The useful life of the organic electroluminescence device of table 1 embodiment 1 ~ 3 and comparative example 1
Can be found out by upper table 1, compared with the organic electroluminescence device of comparative example 1, the useful life of the organic electroluminescence device of embodiment 1 ~ 3 improves 35%, 62% and 42% respectively.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (9)
1. an organic electroluminescence device, comprise substrate, organic light-emitting units and encapsulation cover plate, described encapsulation cover plate and described substrate interval are arranged, described organic light-emitting units to be arranged on described substrate and between described substrate and described cap, it is characterized in that, also comprise protective layer, first sealing ring and the second sealing ring, described organic light-emitting units covers the part surface of described substrate, described protective layer is arranged on described organic light-emitting units on the surface, described first sealing ring to be arranged on described substrate and be sheathed on described organic light-emitting units and two of described first sealing ring relative sides respectively with described substrate and described encapsulation cover plate affixed, described second sealing ring to be arranged on described substrate and be sheathed on described first sealing ring and two of described second sealing ring relative sides respectively with described substrate and described encapsulation cover plate affixed, wherein, protective layer material is two (3-methyl butyl) beryllium, and described first sealing ring material is Photocurable adhesive and water absorbing agent composition, and the material of described second sealing ring is Photocurable adhesive.
2. organic electroluminescence device according to claim 1, it is characterized in that, the spacing of described organic light-emitting units edge and described first sealing ring is described 5 millimeters ~ 20 millimeters, and the spacing of described first sealing ring and described second sealing ring is 5 millimeters ~ 20 millimeters.
3. organic electroluminescence device according to claim 1, is characterized in that, the width of described first sealing ring is 1 millimeter ~ 5 millimeters.
4. organic electroluminescence device according to claim 1, is characterized in that, the width of described second sealing ring is 0.2 millimeter ~ 2 millimeters.
5. organic electroluminescence device according to claim 1, is characterized in that, described protective layer thickness is 50nm ~ 500nm.
6. organic electroluminescence device according to claim 1, is characterized in that, described water absorbing agent is selected from least one in calcium oxide, strontium oxide strontia and barium monoxide.
7. organic electroluminescence device according to claim 1, is characterized in that, the mass ratio of described water absorbing agent and described Photocurable adhesive is 1:100 ~ 3:10.
8. organic electroluminescence device according to claim 1, is characterized in that, described Photocurable adhesive is selected from least one in epobond epoxyn, acrylic ester adhesive or type siloxane Photocurable adhesive.
9. organic electroluminescence device according to claim 1, is characterized in that, the particle diameter of described water absorbing agent is 100 nanometer ~ 800 nanometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310210072.4A CN104218175A (en) | 2013-05-30 | 2013-05-30 | Organic light emission diode device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310210072.4A CN104218175A (en) | 2013-05-30 | 2013-05-30 | Organic light emission diode device |
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| CN104218175A true CN104218175A (en) | 2014-12-17 |
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| CN201310210072.4A Pending CN104218175A (en) | 2013-05-30 | 2013-05-30 | Organic light emission diode device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511500A (en) * | 2018-05-07 | 2018-09-07 | 昆山国显光电有限公司 | Display screen, preparation method and display terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511500A (en) * | 2018-05-07 | 2018-09-07 | 昆山国显光电有限公司 | Display screen, preparation method and display terminal |
| CN108511500B (en) * | 2018-05-07 | 2021-10-15 | 广州国显科技有限公司 | Display screen, preparation method thereof and display terminal |
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Application publication date: 20141217 |