CN106584868A - Method and device for laser synchronous mask welding encapsulation for flexible OLED - Google Patents
Method and device for laser synchronous mask welding encapsulation for flexible OLED Download PDFInfo
- Publication number
- CN106584868A CN106584868A CN201611145909.1A CN201611145909A CN106584868A CN 106584868 A CN106584868 A CN 106584868A CN 201611145909 A CN201611145909 A CN 201611145909A CN 106584868 A CN106584868 A CN 106584868A
- Authority
- CN
- China
- Prior art keywords
- laser
- oled screen
- encapsulation
- light
- flexible oled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3475—Displays, monitors, TV-sets, computer screens
Abstract
The invention discloses a method and a device for laser synchronous mask welding encapsulation for a flexible OLED. The method comprises the following steps: shaping a laser emitted by a laser device into a copying light beam having the same geometrical shape as an encapsulation track through a light path shaping technology, then controlling the line width of the copying light beam to a dimension needed by the set encapsulation track by virtue of a mask method, then enabling the laser to achieve a lower-layer light absorption material through an upper-layer light transmission material, and melting the contact surfaces of the upper-layer encapsulation material and the lower-layer encapsulation material of the flexible OLED. The process is simple, high in consistency and high in encapsulation efficiency.
Description
Technical field
The present invention relates to laser processing, more particularly to the laser welding packaging method of flexible OLED screen.
Background technology
As the advantage of laser plastic welding is resin less degradation, produces that chip is few, welding process is untouchable will not produce
Raw pollution and produced mechanical stress and thermal stress are little, so the side of Plastic Welding widely used laser welding now
Formula.The laser welding of thermoplastic adopts transmission welding principle, i.e., two parts to be welded to overlap and put together at present,
One of two parts can pass through laser and another part must absorb laser, then in two feature contacts faces, i.e. welding region,
Form heat effect area；By the effect of laser so that the plastics in heat effect area are melted, the plastics under hot melt state divide greatly
Son is diffused into one another under the effect of the pressure, produces Van der Waals force, so as to be closely attached together.Thus, the material for having melted
Form joint so that two parts to be welded are coupled together.
Due to OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) device organic film and
Metallic film is contacted with water and air and oxidation can be degenerated immediately, so for OLED, if can protect OLED
Avoid itself and air contact, affect OLED quality it is good with it is bad.Therefore, the encapsulation technology of OLED is most important, directly
Determine OLED into lose.
Flexibility OLED screen generally adopts plastic material for substrate at present, using the packaged type of heat pressing type, this encapsulation side
Although formula can avoid which from contacting with aqueous vapor air etc. with effective protection flexibility OLED, there are problems that：1. need to make
Hot-pressing tool, it is relatively costly；2. contact welding encapsulation, has the impact of the aspect factors such as pollution and mechanical stress；3. hot pressing
Mode can produce certain thermal stress；4. the mode of disposable surrounding hot pressing can cause very big heat affecting to internal element.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, proposes that a kind of laser synchronization is covered
The method of the flexible OLED screen of film welding encapsulation, process is simple, concordance are good, and packaging efficiency is high.
The technical solution adopted for the present invention to solve the technical problems is：There is provided a kind of laser synchronization mask welding encapsulation soft
The method of property OLED screen, which includes：The laser that laser instrument is sent is shaped to and encapsulation track geometry by light path shaping technique
The consistent profiling light beam of shape, recycles the method for mask by needed for the encapsulation track of the live width control of profiling light beam to setting
Size, then makes laser light upper strata light transmissive material reach lower floor's light absorbent, melts flexibility OLED levels encapsulating materials
Contact surface.
Wherein, also include：Before laser action, it is brought into close contact the levels encapsulating material of flexible OLED screen, keeps
Setting pressure.
Wherein, also include：After laser action, setting pressure is kept, until being cooled to design temperature, flexibility is completed
The realization of the levels encapsulating material connection of OLED screen.
Wherein, make the encapsulation track that this sets to be looped around a rectangle of the OLED screen surrounding, the side of the rectangle has
Certain width.
Wherein, the flexible OLED screen is plane OLED screen.
Wherein, make that the laser instrument sends for continuous laser.
The technical solution adopted for the present invention to solve the technical problems is still：A kind of laser synchronization mask welding encapsulation is provided
The device of flexible OLED screen, which includes：Laser instrument, the light path shaping component being engaged with the laser instrument, and it is whole with the light path
The mask plate that shape component is engaged；Wherein, the laser that the laser instrument sends is shaped to and encapsulation rail by the light path shaping component
The consistent profiling light beam of mark geometry, recycles the mask plate by the encapsulation track of the live width control of the profiling light beam to setting
Required size, then makes laser light upper strata light transmissive material reach lower floor's light absorbent, fusing flexibility OLED levels encapsulation
The contact surface of material.
Wherein, the encapsulation track that this sets has one to be looped around a rectangle of the OLED screen surrounding, the side of the rectangle
Fixed width.
Wherein, the flexible OLED screen is plane OLED screen.
Wherein, the laser instrument send for continuous laser.
The beneficial effects of the present invention is, by dexterously being combined with mask plate using light path shaping component so that tool
The packaging beam of the width having needed for the encapsulation track of setting reaches lower floor's extinction through the upper strata light transmissive material of flexible OLED screen
Material, melts the contact surface of two layer materials, can realize that the touchless welding of flexible OLED screen is encapsulated, process is simple, unanimously
Property it is good, packaging efficiency is high.
Description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation of the device with OLED screen of the present invention；
Fig. 2 is the welding encapsulation track signal that the method for the present invention acts on plane OLED screen；
Fig. 3 is the schematic flow sheet of the method for the present invention.
Specific embodiment
In conjunction with accompanying drawing, presently preferred embodiments of the present invention is elaborated.
It is the structural representation of the device with OLED screen of the present invention referring to Fig. 1 and Fig. 2, Fig. 1.Fig. 2 is that the method for the present invention is made
Illustrate welding encapsulation track for plane OLED screen.The present invention proposes a kind of flexible OLED screen of laser synchronization mask welding encapsulation
Device, including：Laser instrument (not shown), light path shaping component 1 and mask plate 3.Wherein, in working order, the laser instrument is sent out
Go out for continuous laser, while keeping making the external pressure that the upper and lower base plate of flexible OLED screen 5 is brought into close contact, light path shaping
The laser that laser instrument is sent by component 1 by itself structure and control program, is shaped to consistent with envelope track geometry
Profiling light beam 2；Profiling light beam 2 is by obtaining packaging beam 4 after mask plate 3；4 live width of packaging beam is set with flexible OLED screen 5
Encapsulation track 8 need width it is consistent.Packaging beam 4 is arrived through the upper substrate 6 (which is transparent material layer) of flexible OLED screen 5
Up to OLED infrabasal plates 7 (which is light-absorbing material layer), and absorbed by infrabasal plate 7, so as to the contact surface by two substrates 6,7 melts,
Keep under the active force of external pressure, after cooling, two substrates 6,7 just closely can be combined together, and complete flexibility so as to reach
The encapsulation of OLED screen.In the present embodiment, the encapsulation track 8 of the setting is a square for being looped around 5 surrounding of plane OLED screen
Shape.The side of the rectangle has certain width, it can be ensured that upper substrate 6 is connected firm with infrabasal plate 7.
Referring to Fig. 3, Fig. 3 is the schematic flow sheet of the method for the present invention.In sum, the method for the present invention includes following step
Suddenly：
S301, it is brought into close contact the levels encapsulating material of flexible OLED screen, keeps setting pressure.
S303, the laser for sending laser instrument are shaped to consistent with encapsulation track geometry by light path shaping technique
Profiling light beam, the size for recycling the method for mask the live width control of profiling light beam to be arrived needed for the encapsulation track of setting, then
Make laser light upper strata light transmissive material reach lower floor's light absorbent, melt the contact surface of flexibility OLED levels encapsulating materials.
S305, holding setting pressure, until being cooled to design temperature, the levels encapsulating material for completing flexible OLED screen connects
The realization for connecing.
So, it is possible to make two layers of encapsulating material up and down of flexible OLED screen to be bound tightly together, effective protection OLED
Device, it is to avoid which is contacted and cause the oxidation of OLED to degenerate with aqueous vapor air etc..
The beneficial effects of the present invention is, by dexterously being combined with mask plate 3 using light path shaping component 1 so that
The packaging beam 4 of the width needed for the encapsulation track with setting reaches lower floor through the upper strata light transmissive material of flexible OLED screen 4
Light absorbent, melts the contact surface of two layer materials, can realize that the 5 touchless welding of flexible OLED screen is encapsulated, it is not necessary to make
Make specific hot pressing tool assembly and save instrument cost, do not contact with product and do not result in pollution, do not produce mechanical stress and heat is answered
Power, can greatly improve the quality of product；The method process is simple, concordance are good, and packaging efficiency is high.
It should be appreciated that above example is only to illustrate technical scheme, rather than a limitation, to ability
For field technique personnel, the technical scheme described in above-described embodiment can be modified, or it is special to which part technology
Levying carries out equivalent；And these modifications and replacement, should all belong to the protection domain of claims of the present invention.
Claims (10)
1. a kind of method that laser synchronization mask welding encapsulates flexible OLED screen, it is characterised in that include：Laser instrument is sent
Laser is shaped to the profiling light beam consistent with encapsulation track geometry by light path shaping technique, and the method for recycling mask will
Size needed for the live width control of profiling light beam to the encapsulation track of setting, under then reaching laser light upper strata light transmissive material
Layer light absorbent, melts the contact surface of flexibility OLED levels encapsulating materials.
2. method according to claim 1, it is characterised in that：Also include：Before laser action, flexible OLED screen is made
Levels encapsulating material is brought into close contact, and keeps setting pressure.
3. method according to claim 1, it is characterised in that：Also include：After laser action, setting pressure is kept,
Until being cooled to design temperature, the realization of the levels encapsulating material connection of flexible OLED screen is completed.
4. method according to claim 1, it is characterised in that：The encapsulation track that this sets is made to be looped around the OLED screen four
One rectangle in week, the side of the rectangle has certain width.
5. method according to claim 1, it is characterised in that：The flexible OLED screen is plane OLED screen.
6. method according to claim 1, it is characterised in that：Make that the laser instrument sends for continuous laser.
7. a kind of laser synchronization mask welding encapsulates the device of flexible OLED screen, it is characterised in that：Including：Laser instrument, is swashed with this
The light path shaping component that light device is engaged, and the mask plate being engaged with the light path shaping component；Wherein, the laser instrument sends
Laser be shaped to and the encapsulation consistent profiling light beam of track geometry by the light path shaping component, recycle the mask plate
By the size needed for the encapsulation track of the live width control of the profiling light beam to setting, then reach laser light upper strata light transmissive material
To lower floor's light absorbent, the contact surface of flexibility OLED levels encapsulating materials is melted.
8. device according to claim 7, it is characterised in that：The encapsulation track that this sets is to be looped around the OLED screen surrounding
A rectangle, the side of the rectangle has certain width.
9. device according to claim 7, it is characterised in that：The flexible OLED screen is plane OLED screen.
10. device according to claim 7, it is characterised in that：The laser instrument send for continuous laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145909.1A CN106584868A (en) | 2016-12-13 | 2016-12-13 | Method and device for laser synchronous mask welding encapsulation for flexible OLED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145909.1A CN106584868A (en) | 2016-12-13 | 2016-12-13 | Method and device for laser synchronous mask welding encapsulation for flexible OLED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106584868A true CN106584868A (en) | 2017-04-26 |
Family
ID=58802022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611145909.1A Pending CN106584868A (en) | 2016-12-13 | 2016-12-13 | Method and device for laser synchronous mask welding encapsulation for flexible OLED |
Country Status (1)
| Country | Link |
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| CN (1) | CN106584868A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383033A (en) * | 2017-08-07 | 2019-02-26 | 大族激光科技产业集团股份有限公司 | A kind of laser welding packaging method and apparatus of OLED screen |
Citations (6)
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|---|---|---|---|---|
| CN1266776A (en) * | 1999-01-28 | 2000-09-20 | 莱斯特加工技术公司 | Laser welding method and apparatus for welding plastic workpiece or plastics or other materials |
| CN202142770U (en) * | 2010-11-05 | 2012-02-08 | 山西飞虹激光科技有限公司 | high-power semiconductor laser capable of outputting uniform laser spot in arbitrary shape |
| CN103056525A (en) * | 2012-12-28 | 2013-04-24 | 江苏大学 | Novel method of laser transmission welding connection |
| CN103464900A (en) * | 2013-08-09 | 2013-12-25 | 上海大学 | Laser sealing method and system |
| CN104527038A (en) * | 2015-01-08 | 2015-04-22 | 常州信息职业技术学院 | Polymer microfluidic chip microchannel compression moulding forming device and method thereof |
| CN104846331A (en) * | 2015-05-28 | 2015-08-19 | 京东方科技集团股份有限公司 | Mask plate applied to laser radiation and laser encapsulation method |
-
2016
- 2016-12-13 CN CN201611145909.1A patent/CN106584868A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266776A (en) * | 1999-01-28 | 2000-09-20 | 莱斯特加工技术公司 | Laser welding method and apparatus for welding plastic workpiece or plastics or other materials |
| CN202142770U (en) * | 2010-11-05 | 2012-02-08 | 山西飞虹激光科技有限公司 | high-power semiconductor laser capable of outputting uniform laser spot in arbitrary shape |
| CN103056525A (en) * | 2012-12-28 | 2013-04-24 | 江苏大学 | Novel method of laser transmission welding connection |
| CN103464900A (en) * | 2013-08-09 | 2013-12-25 | 上海大学 | Laser sealing method and system |
| CN104527038A (en) * | 2015-01-08 | 2015-04-22 | 常州信息职业技术学院 | Polymer microfluidic chip microchannel compression moulding forming device and method thereof |
| CN104846331A (en) * | 2015-05-28 | 2015-08-19 | 京东方科技集团股份有限公司 | Mask plate applied to laser radiation and laser encapsulation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383033A (en) * | 2017-08-07 | 2019-02-26 | 大族激光科技产业集团股份有限公司 | A kind of laser welding packaging method and apparatus of OLED screen |
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Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |