CN105405864B - The packaging method of display device and display device - Google Patents
The packaging method of display device and display device Download PDFInfo
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- CN105405864B CN105405864B CN201510902269.3A CN201510902269A CN105405864B CN 105405864 B CN105405864 B CN 105405864B CN 201510902269 A CN201510902269 A CN 201510902269A CN 105405864 B CN105405864 B CN 105405864B
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- display device
- gassing body
- gassing
- gas
- cap
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/88—Dummy elements, i.e. elements having non-functional features
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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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
-
- 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
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- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of display devices.The display device includes display device and the cap that is encapsulated in outside the display device, forms package cavity between the display device and the cap, is filled with protective gas in the package cavity；The protective gas is selected from carbon dioxide or hydrogen.The display device can inhibit the injury of vapor and oxygen to display device in outside air, to improve the service life of display device.The invention also discloses a kind of packaging methods of display device comprising places gassing body in the effective display area domain periphery of display device；Display device is subjected to Vacuum Package with cap in the periphery of gassing body；Make gassing body release guard gas, the protective gas is selected from carbon dioxide or hydrogen.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of display device and the packaging method of display device.
Background technique
AMOLED (Active-matrix organic light-emitting diode, active matrix organic light-emitting two
Polar body) it is used as a kind of novel display device, there is high chroma, high contrast, wide viewing angle, high brightness, self-luminous, response speed
Fastly, the features such as Flexible Displays can be achieved, has been widely used on mobile phone and media player.AMOLED display device
Requirement to water and oxygen obstruction is very high, therefore usually requires to be packaged using preceding.However, traditional AMOLED shows dress
The packaged type set be under vacuum conditions, using glass-encapsulated or thin-film package etc., such displayer part and at it
It is vacuum state between the cap on surface.But this cap obtained using traditional Vacuum Package can not be accomplished
Effective barrier to water in air and oxygen, water vapour and oxygen in air still can be by caps to its inside
Displayer part causes adverse effect, causes the service life of AMOLED display device lower.
Summary of the invention
Based on this, it is necessary to for traditional display device by air water vapour and oxygen injury and the service life it is lower
Problem provides a kind of vapor in reduction air and oxygen injury to improve the display device in service life.
A kind of display device, including display device and the cap being encapsulated in outside the display device, the display device
Package cavity is formed between the cap, fills protective gas in the package cavity；The protective gas is selected from dioxy
Change carbon or hydrogen.
The package cavity of above-mentioned display device is filled with protective gas, can inhibit the vapor and oxygen in outside air
Injury to display device, to improve the service life of display device.
The pressure of the protective gas is greater than 1 × 10 in one of the embodiments,5Pa。
The display device further includes desiccant in one of the embodiments, and the desiccant is located at the package cavity
It is interior.
The desiccant is calcium oxide in one of the embodiments,.
The present invention also provides a kind of packaging methods of display device.
A kind of packaging method of display device comprising following steps:
Gassing body is placed on display device；
Display device is subjected to Vacuum Package with cap in the periphery of gassing body；
Make gassing body release guard gas, the protective gas is selected from carbon dioxide or hydrogen.
The packaging method of above-mentioned display device makes the package cavity of display device filled with protective gas, can inhibit outer
The injury of vapor and oxygen to display device in boundary's air, to improve the service life of display device.
In one of the embodiments, in the step of placing gassing body on the display device, the gassing body is placed
In the effective display area domain periphery of the display device.
The material of the gassing body is selected from one of calcium carbonate, magnesium carbonate and barium carbonate in one of the embodiments,
Or it is several.
The step of gassing body is placed in the periphery of the effective display area domain in display device in one of the embodiments,
Including the slurry containing gassing body to be coated on to the periphery of the effective display area domain of display device, is then removed in the slurry
Decentralized medium.
The step of making gassing body release guard gas laser calcines the gassing in one of the embodiments,
Body.
The gassing body is dry ice or gas storage material in one of the embodiments,.
Detailed description of the invention
Fig. 1 is the schematic diagram of the display device of the preferred embodiment of the present invention.
Fig. 2 is the display device area distribution schematic diagram of the display device of the preferred embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, a kind of display device 100, including display device 110 and the encapsulation being encapsulated in outside display device 110
Lid 120.Package cavity 130 is formed between display device 110 and cap 120.Filling protective gas is (in figure in package cavity 130
It is not shown)；The protective gas is selected from carbon dioxide or hydrogen.
Display device of the invention is preferably organic LED display device, more preferably AMOLED display device.
Wherein, display device 110 includes the substrate 111 stacked gradually, (Thin Film Transistor, film are brilliant by TFT
Body pipe) layer 112, anode 113, cavitation layer 114, luminescent layer 115, electronic shell 116 and cathode 117.
Each component of display device 110 is known to those skilled in the art, and details are not described herein！
Wherein, the effect of cap 120 is to separate display device 110 and outside air, is especially display device 110
Luminescent layer 115 is not directly exposed in air, avoids vapor in air and oxygen to injury caused by display device 110.
Cap 120 is glass cover-plate.Glass cover-plate has excellent chemical stability, electrical insulating property and compactness.
Preferably, realize that sealing combines between display device 110 and cap 120 by sealant 140.So as to
Prevent vapor and oxygen in air from entering in package cavity 130, to avoid causing adverse effect to display device 110.It is close
Sealing can be epoxy resin etc..It is of course also possible to be to be encapsulated in display device 110 and cap 120 using other way
Together.Such as the modes such as light-sensitive emulsion cure package.
Wherein, the pressure of the protective gas is preferably greater than 1 × 105Pa, that is, the pressure of the protective gas
Greater than the air pressure outside the cap.Vapor in outside air and oxygen are further suppressed in this way to the wound of display device
Evil.
Wherein, display device 100 further includes desiccant 150, and desiccant 150 is located in the package cavity 130.Desiccant
150 can be absorbed the vapor in package cavity 130, even if there is a small amount of vapor to enter in package cavity 130, desiccant 150
It can be absorbed, further avoid influence of the vapor to display device.
Preferably, the desiccant is calcium oxide.
Preferably, the desiccant 150 is located at package cavity 120 close to the position of sealant 140.It is highly preferred that desiccant
150 form a ring-type.Each component of the display device 110 in its ring can be preferably protected in this way.
Display device of the invention can inhibit in outside air since its package cavity 130 is filled with protective gas
The injury of vapor and oxygen to display device 110, to improve the service life of display device.
The present invention also provides a kind of packaging methods of display device comprising following steps:
Gassing body is placed on display device；
Display device is subjected to Vacuum Package with cap in the periphery of gassing body；
Make gassing body release guard gas.
Wherein, gassing body under certain conditions, exists with the state of on-gaseous；When change condition reaches release gas
The condition of body, gassing body release gas.In the present invention, gassing body is before cap Vacuum Package and when encapsulating,
Exist with the state of on-gaseous；Gassing body is set to reach the condition of release gas, gassing body simultaneously after cap Vacuum Package
It releases in gas to package cavity.
For ease of operation, gassing body of the invention is preferably solid.Certainly, in some cases, gassing body can also be with
For gelinite or liquid.
According to the difference of gassing principle, physics gassing can be divided into and chemistry produces gas.Wherein, physics gassing refers to on-gaseous
Gassing body physical change occurs and generates gas or on-gaseous gassing body itself be incorporated into its internal gas out of it
Portion releases.
Based on this principle, the gassing body is preferably dry ice or gas storage material.
By taking dry ice as an example, physical change occurs for dry ice itself --- distillation, and generate and carbon dioxide gas.
By taking gas storage material as an example, gas storage material will combine the gas molecule of absorption inside it to release inside it.
Preferably, the gas storage material is hydrogen bearing alloy.
Chemistry produces gas and refers to that non-gaseous matter occurs chemical reaction and generates gas.
Based on this principle, the gassing body is preferably selected from one or more of calcium carbonate, magnesium carbonate and barium carbonate.
Above-mentioned gassing body can chemically react in (such as heating) under certain conditions, decompose and generate protectiveness gas
Body.
Preferably, the gassing body is placed on the effective display area domain periphery of the display device.Referring to fig. 2, Fig. 2 is aobvious
The area distribution schematic diagram of the display device of showing device.Effective display area domain 7 of the gassing body placement region 8 in display device 110
Periphery, sealant dispensing area 9 is in the periphery of gassing body placement region 8.That is, being followed successively by sealant painting from outside to inside
Cloth region 9, gassing body placement region 8, effective display area domain 7.Wherein, gassing body placement region 8 is in the effective of display device 110
The periphery of display area 7, other tools are to effective display area domain 7 during thus being avoided that gassing body or placing analysis gas-operated
Injury.
It preferably, include that will contain gassing the step of gassing body is placed in the periphery of the effective display area domain of display device
The slurry of body is coated on the periphery of the effective display area domain of display device, then removes the decentralized medium in the slurry.
Wherein, the gassing body is in granular form, and the average grain diameter of gassing body is 10 μm~100 μm.The effect of decentralized medium
It is to disperse gassing body, is not chemically reacted with gassing body.Decentralized medium can be organic point of water or ethyl alcohol, propyl alcohol etc.
Dispersion media.The volume ratio of gassing body and decentralized medium is preferably 1:1~5:1 in slurry.
The decentralized medium in slurry is removed, it can be using dry method.Preferably, dry 0.5 at -40~50 DEG C~
10min。
Certainly, different according to the property of gassing body, gassing body directly can also be placed on the upper of display device.For example,
Dry ice particles are laid on display device.
Preferably, include the step of display device is carried out Vacuum Package with cap by the periphery of gassing body, in gassing
The periphery of body applies sealant, then pastes cap on display device under vacuum conditions.
It is of course also possible to be that display device and cap are packaged together using other way.Such as photosensitive adhesive curing
Etc. modes.
Wherein, the method for making gassing body release gas, the condition according to the release gas of gassing body are different and different.
By taking carbonate as an example, the method for making gassing body release guard gas is preferably laser calcining, it is highly preferred that
Optical maser wavelength is 20~200nm, frequency 300Hz, energy 150W when laser is calcined.
After the calcining of calcium carbonate laser, other than generating carbon dioxide gas, also generating has calcium oxide.In this way, oxidation
The vapor in package cavity can be absorbed as desiccant in calcium, even if there is a small amount of vapor to enter in package cavity, desiccant
It can be absorbed, further avoid influence of the vapor to display device.
By taking dry ice as an example, the method for making gassing body release guard gas is lower at normal temperature to place.
By taking hydrogen bearing alloy as an example, the method for making gassing body release guard gas heats hydrogen bearing alloy.
Packaging method of the invention is further elaborated below in conjunction with specific embodiment.
Embodiment 1
In the environment of -70 DEG C of low temperature, the dry ice particles for being 0.1mm by average grain diameter are laid on display device, then
Sealant is applied in the periphery of dry ice particles, cap is pasted on display device.
Finally packaged display device is put at normal temperature, dry ice sublimation is carbon dioxide gas, be can be used as
Protective gas.
Embodiment 2
It is distributed to the calcium carbonate granule of 20g in 40g water, forms slurry.
In the effective display area domain periphery coating slurry of display device.Then the dry 10min at 60 DEG C.Then in drying
The periphery coating sealant of gassing body afterwards, cap is pasted on display device.
Gassing body is irradiated using laser, the wavelength of laser is 100nm, frequency 300Hz, energy 150W.
At this point, calcium carbonate is calcium oxide and carbon dioxide by pyrolytic, wherein carbon dioxide is as protective gas, and calcium carbonate is then
It can be used as desiccant.Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to upper
It states all possible combination of each technical characteristic in embodiment to be all described, as long as however, the combination of these technical characteristics
There is no contradictions, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of packaging method of display device comprising following steps:
The gassing body to release gas is placed on display device；
Display device is subjected to Vacuum Package with cap in the periphery of gassing body；
Make gassing body release guard gas, the protective gas is selected from carbon dioxide or hydrogen；
Wherein, the gassing body exists before cap Vacuum Package and when encapsulating with the state of on-gaseous.
2. packaging method according to claim 1, which is characterized in that described the step of placing gassing body on display device
In, the gassing body is placed on the effective display area domain periphery of the display device.
3. packaging method according to claim 2, which is characterized in that the material of the gassing body is selected from calcium carbonate, carbonic acid
One or more of magnesium and barium carbonate.
4. packaging method according to claim 3, which is characterized in that described the step of placing gassing body on display device
Including the slurry containing gassing body to be coated on to the periphery of the effective display area domain of display device, is then removed in the slurry
Decentralized medium.
5. packaging method according to claim 3, which is characterized in that described the step of making gassing body release guard gas
The gassing body is calcined for laser.
6. packaging method according to claim 1, which is characterized in that the gassing body is dry ice or gas storage material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510902269.3A CN105405864B (en) | 2015-12-08 | 2015-12-08 | The packaging method of display device and display device |
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| CN201510902269.3A CN105405864B (en) | 2015-12-08 | 2015-12-08 | The packaging method of display device and display device |
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| CN105405864A CN105405864A (en) | 2016-03-16 |
| CN105405864B true CN105405864B (en) | 2019-05-17 |
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| CN107146810A (en) * | 2017-06-19 | 2017-09-08 | 合肥市惠科精密模具有限公司 | A kind of flexible AMOLED display panels |
| CN109037085A (en) * | 2018-08-01 | 2018-12-18 | 苏州福莱威封装技术有限公司 | Packaging method and encapsulating structure |
| CN110523558A (en) * | 2019-08-28 | 2019-12-03 | 昆山工研院新型平板显示技术中心有限公司 | A kind of coating mechanism |
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| CN204204919U (en) * | 2014-11-19 | 2015-03-11 | 昆山工研院新型平板显示技术中心有限公司 | Amoled display device |
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| SG143063A1 (en) * | 2002-01-24 | 2008-06-27 | Semiconductor Energy Lab | Light emitting device and method of manufacturing the same |
| JP4460935B2 (en) * | 2004-04-02 | 2010-05-12 | 東芝モバイルディスプレイ株式会社 | Manufacturing method of electronic / electrical products such as flat display devices, and belt-like storage body therefor |
| WO2006011666A1 (en) * | 2004-07-30 | 2006-02-02 | Semiconductor Energy Laboratory Co., Ltd. | Display device, driving method thereof and electronic appliance |
| JP4693577B2 (en) * | 2005-09-30 | 2011-06-01 | 東芝モバイルディスプレイ株式会社 | Manufacturing method of electronic / electrical products such as flat panel display and storage body therefor |
| KR100662992B1 (en) * | 2005-12-14 | 2006-12-28 | 삼성에스디아이 주식회사 | Driver ic of organic light-emitting display device and the preparing method of the same |
| CN101030544A (en) * | 2007-04-03 | 2007-09-05 | 清华大学 | Method for packing photoelectric device |
| EP2415746A4 (en) * | 2009-03-31 | 2012-10-31 | Toray Industries | Light-emitting element material precursor body and production method therefor |
| CN101931058B (en) * | 2010-07-06 | 2013-03-13 | 电子科技大学 | Packaging structure and packaging method of organic electroluminescent device |
| JP2012109508A (en) * | 2010-10-29 | 2012-06-07 | Jnc Corp | Heat dissipation member for electronic device, electronic device, and method for manufacturing electronic device |
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| CN204204919U (en) * | 2014-11-19 | 2015-03-11 | 昆山工研院新型平板显示技术中心有限公司 | Amoled display device |
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