CN107464895A - The preparation method of flexible display screen - Google Patents
The preparation method of flexible display screen Download PDFInfo
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- CN107464895A CN107464895A CN201710852968.0A CN201710852968A CN107464895A CN 107464895 A CN107464895 A CN 107464895A CN 201710852968 A CN201710852968 A CN 201710852968A CN 107464895 A CN107464895 A CN 107464895A
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- Prior art keywords
- flexible display
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- laser
- display screen
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- 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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- 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
- H10K71/80—Manufacture or treatment specially adapted for the organic devices covered by this subclass using temporary substrates
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present invention provides a kind of preparation method of flexible display screen, including：Step 1, bearing substrate is provided, flexible display device layer is made on the bearing substrate, obtains flexible display substrates；Step 2, several viewing areas are defined on the flexible display substrates, several viewing areas of the bearing substrate side are scanned using laser, realize the flexible display device layer and separation of the bearing substrate in several viewing areas；Step 3, in the flexible display device layer side of the flexible display substrates define several lines of cut, several described lines of cut are respectively enclosed to several flexible display screens in several viewing areas, the flexible display device layer is cut and takes out the region of cutting along several described lines of cut, obtains several flexible display screens.The preparation method can avoid the edge micro rupture problem of flexible display screen, improve production yield, while save laser using consumption and production hour, improve production efficiency.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of preparation method of flexible display screen.
Background technology
Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) display, also referred to as Organic Electricity
Electroluminescent display, it is a kind of emerging panel display apparatus, because it has, preparation technology is simple, cost is low, low in energy consumption, hair
Brightness height, operating temperature wide adaptation range, volume are frivolous, fast response time, and are easily achieved colored display and giant-screen
It has been shown that, be easily achieved and match with driver ic, be easily achieved the advantages that Flexible Displays, thus there is wide application
Prospect.
OLED according to type of drive can be divided into passive matrix OLED (Passive Matrix OLED, PMOLED) and
Active array type OLED (Active Matrix OLED, AMOLED) two major classes, i.e. direct addressin and thin film transistor (TFT) (TFT,
Thin Film Transistor) two class of matrix addressing.Wherein, AMOLED has the pixel in array arrangement, belongs to actively
Display type, luminous efficacy is high, is typically used as the large scale display device of fine definition.
OLED is generally included：Substrate, the anode on substrate, hole injection layer (the Hole Inject on anode
Layer, HIL), the hole transmission layer (Hole Transport Layer, HTL) on hole injection layer, located at hole pass
Luminescent layer on defeated layer, the electron transfer layer on luminescent layer (Electron Transport Layer, ETL), located at electricity
Electron injecting layer (Electron Inject Layer, EIL) in sub- transport layer and the negative electrode on electron injecting layer.
The principle of luminosity of OLED display device be semi-conducting material and luminous organic material under electric field driven, by carrier injection and
Composite guide photoluminescence.Specifically, the sun of OLED display device generally use ITO pixel electrodes and metal electrode respectively as device
Pole and negative electrode, under certain voltage driving, electronics and hole are injected into electron transfer layer and hole biography from negative electrode and anode respectively
Defeated layer, electronics and hole move to luminescent layer by electron transfer layer and hole transmission layer respectively, and are met in luminescent layer, shape
Into exciton and excite light emitting molecule, the latter sends visible ray by radiative relaxation.
For OLED compared with liquid crystal display panel (TFT-LCD), maximum advantage is exactly that can prepare large scale, ultra-thin flexibility
OLED display screen, a kind of existing preparation method of flexible OLED display include：One layer of formation is soft first on bearing substrate
Property substrate, afterwards on flexible substrates carry out array (Array) with organic luminous layer processing procedure, so as on bearing substrate be made it is soft
Property display device layer, is then cut by laser along line of cut to the flexible display device layer with bearing substrate, finally by
Laser light bearing substrate irradiates the flexible substrate of the flexible display device layer, flexible substrate in the presence of laser with carrying
Substrate separates, and obtains flexible OLED display.
In the preparation method of above-mentioned flexible OLED display, laser is carried out to flexible display device layer and bearing substrate first
Cutting, laser lift-off, during laser lift-off, Flexible Displays then are carried out to flexible display device layer and bearing substrate again
The edge of device layer easily sustains damage, and causes micro rupture (Micro crack) problem at flexible OLED display edge, and then
Reduce production yield and product reliability；Simultaneously because laser cutting processing procedure in also need to bearing substrate carry out laser scribing with
Sliver, so as to which laser greatly improved using consumption and production hour, reduce production efficiency.
The content of the invention
It is an object of the invention to provide a kind of preparation method of flexible display screen, the edge of flexible display screen can be avoided
Micro rupture problem, production yield is improved, while save laser using consumption and production hour, improve production efficiency.
To achieve the above object, the present invention provides a kind of preparation method of flexible display screen, comprises the following steps：
Step 1, bearing substrate is provided, flexible display device layer is made on the bearing substrate, obtains Flexible Displays base
Plate；
Step 2, several viewing areas are defined on the flexible display substrates, using laser from the bearing substrate one
Side is scanned to several viewing areas of the flexible display substrates, realizes that the flexible display device layer exists with bearing substrate
The separation of several viewing areas；
Step 3, define several lines of cut in the flexible display device layer side of the flexible display substrates, it is described several
Line of cut is respectively enclosed to several flexible display screens in several viewing areas, along several described lines of cut to described flexible aobvious
Show that device layer is cut, obtain several flexible display screens.
The bearing substrate is glass substrate.
The flexible display device layer is flexible OLED display part layer.
The laser used in the step 2 is PRK.
The wavelength of the PRK is 308nm.
The laser used in the step 2 is solid-state laser.
The wavelength of the solid-state laser is 343nm or 355nm.
In the step 3, the flexible display device layer is cut along several described lines of cut using laser.
The laser used in the step 3 is picosecond laser, femtosecond laser or carbon dioxide laser.
In the step 3, the area of the viewing area is more than the area of the flexible display screen.
Beneficial effects of the present invention：The preparation method of a kind of flexible display screen provided by the invention, by Flexible Displays
The laser lift-off that device layer is patterned with bearing substrate, and then the area peeled off on flexible display device floor with bearing substrate
Cut in domain, obtain flexible display screen, this method can avoid the edge micro rupture problem of flexible display screen, improve production
Yield, simultaneously because need not be cut in cutting processing procedure to bearing substrate, consumption and production are used so as to save laser
In man-hour, improve production efficiency.
In order to be further understood that the feature of the present invention and technology contents, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, be not used for being any limitation as the present invention.
Brief description of the drawings
Below in conjunction with the accompanying drawings, by the way that the embodiment of the present invention is described in detail, technical scheme will be made
And other beneficial effects are apparent.
In accompanying drawing,
Fig. 1 is the flow chart of the preparation method of the flexible display screen of the present invention；
Fig. 2 is the schematic diagram of the step 1 of the preparation method of the flexible display screen of the present invention；
Fig. 3 is the schematic diagram of the step 2 of the preparation method of the flexible display screen of the present invention；
Fig. 4 to Fig. 5 is the schematic diagram of the step 3 of the preparation method of the flexible display screen of the present invention.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
Referring to Fig. 1, the present invention provides a kind of preparation method of flexible display screen, comprise the following steps：
Step 1, as shown in Figure 2, there is provided bearing substrate 10, on the bearing substrate 10 make flexible display device layer
20, obtain flexible display substrates 30.
Preferably, the bearing substrate 10 is glass substrate.
Preferably, the flexible display device layer 20 is flexible OLED display part layer.
Step 2, as shown in figure 3, define several viewing areas 31 on the flexible display substrates 30, using laser from
The side of bearing substrate 10 is scanned to several viewing areas 31 of the flexible display substrates 30, to the Flexible Displays
Interval region between several viewing areas 31 of substrate 30 realizes the flexible display device layer 20 and carrying without scanning
Separation of the substrate 10 in several viewing areas 31.
Specifically, the laser used in the step 2 is PRK or solid-state laser.
Preferably, the wavelength of the PRK is 308nm, and the wavelength of the solid-state laser is 343nm or 355nm.
Step 3, as shown in Fig. 4 to Fig. 5, defined in the side of flexible display device layer 20 of the flexible display substrates 30
Several lines of cut 21, several described lines of cut 21 are respectively enclosed to several flexible display screens 40 in several viewing areas 31,
The flexible display device layer 20 is cut along several described lines of cut 21, the bearing substrate 10 not cut,
Obtain several flexible display screens 40.
Specifically, in the step 3, the area of the viewing area 31 is more than the area of the flexible display screen 40.
Preferably, in the step 3, the flexible display device layer 20 is entered along several described lines of cut 21 using laser
Row cutting.
Specifically, in the laser cutting processing procedure of the step 3, the flexible display device layer of the flexible display substrates 30 is made
20 sides are towards laser.
Preferably, the laser used in the step 3 is picosecond laser (Pico-second Laser), femtosecond laser
(Femto-second Laser) or carbon dioxide laser (CO2Laser)。
In the step 3, it is only necessary to which flexible display device layer 20 is cut, it is not necessary to which bearing substrate 10 is cut
Cut, so as to save laser using consumption and production hour, improve production efficiency.
In summary, the present invention provides a kind of preparation method of flexible display screen, by flexible display device layer with holding
The laser lift-off that carried base board is patterned, and then cut in the region peeled off on flexible display device layer with bearing substrate
Cut, obtain flexible display screen, this method can avoid the edge micro rupture problem of flexible display screen, improve production yield, simultaneously
Due to need not be cut in cutting processing procedure to bearing substrate, so as to save laser using consumption and production hour, improve
Production efficiency.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the claims in the present invention
Protection domain.
Claims (10)
1. a kind of preparation method of flexible display screen, it is characterised in that comprise the following steps：
Step 1, bearing substrate (10) is provided, flexible display device layer (20) is made on the bearing substrate (10), is obtained soft
Property display base plate (30)；
Step 2, several viewing areas (31) are defined on the flexible display substrates (30), using laser from the carrying base
Plate (10) side is scanned to several viewing areas (31) of the flexible display substrates (30), realizes the flexible display
The separation of part layer (20) and bearing substrate (10) in several viewing areas (31)；
Step 3, in flexible display device layer (20) side of the flexible display substrates (30) several lines of cut (21) are defined,
Several described lines of cut (21) are respectively enclosed to several flexible display screens (40) in several viewing areas (31), along the number
Bar line of cut (21) is cut to the flexible display device layer (20), obtains several flexible display screens (40).
2. the preparation method of flexible display screen as claimed in claim 1, it is characterised in that the bearing substrate (10) is glass
Substrate.
3. the preparation method of flexible display screen as claimed in claim 1, it is characterised in that the flexible display device layer (20)
For flexible OLED display part layer.
4. the preparation method of flexible display screen as claimed in claim 1, it is characterised in that the laser used in the step 2
For PRK.
5. the preparation method of flexible display screen as claimed in claim 4, it is characterised in that the wavelength of the PRK is
308nm。
6. the preparation method of flexible display screen as claimed in claim 1, it is characterised in that the laser used in the step 2
For solid-state laser.
7. the preparation method of flexible display screen as claimed in claim 6, it is characterised in that the wavelength of the solid-state laser is
343nm or 355nm.
8. the preparation method of flexible display screen as claimed in claim 1, it is characterised in that in the step 3, using laser edge
Several described lines of cut (21) are cut to the flexible display device layer (20).
9. the preparation method of flexible display screen as claimed in claim 8, it is characterised in that the laser used in the step 3
For picosecond laser, femtosecond laser or carbon dioxide laser.
10. the preparation method of flexible display screen as claimed in claim 1, it is characterised in that in the step 3, the display
The area in region (31) is more than the area of the flexible display screen (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852968.0A CN107464895A (en) | 2017-09-19 | 2017-09-19 | The preparation method of flexible display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852968.0A CN107464895A (en) | 2017-09-19 | 2017-09-19 | The preparation method of flexible display screen |
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| Publication Number | Publication Date |
|---|---|
| CN107464895A true CN107464895A (en) | 2017-12-12 |
Family
ID=60552704
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710852968.0A Pending CN107464895A (en) | 2017-09-19 | 2017-09-19 | The preparation method of flexible display screen |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887157A (en) * | 2014-03-12 | 2014-06-25 | 京东方科技集团股份有限公司 | Optical mask plate and laser lift-off device |
| JP2016096218A (en) * | 2014-11-13 | 2016-05-26 | 三菱化学株式会社 | Method of manufacturing lamination substrate, and method of manufacturing electronic device |
| CN106024830A (en) * | 2016-05-27 | 2016-10-12 | 京东方科技集团股份有限公司 | Manufacturing method of flexible display panel, flexible display panel and display device |
| CN106158740A (en) * | 2016-09-26 | 2016-11-23 | 昆山工研院新型平板显示技术中心有限公司 | Flexible substrate substrate and the preparation method of flexible OLED display |
| CN106935596A (en) * | 2017-02-22 | 2017-07-07 | 武汉华星光电技术有限公司 | A kind of preparation method of flexible base board |
-
2017
- 2017-09-19 CN CN201710852968.0A patent/CN107464895A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887157A (en) * | 2014-03-12 | 2014-06-25 | 京东方科技集团股份有限公司 | Optical mask plate and laser lift-off device |
| JP2016096218A (en) * | 2014-11-13 | 2016-05-26 | 三菱化学株式会社 | Method of manufacturing lamination substrate, and method of manufacturing electronic device |
| CN106024830A (en) * | 2016-05-27 | 2016-10-12 | 京东方科技集团股份有限公司 | Manufacturing method of flexible display panel, flexible display panel and display device |
| CN106158740A (en) * | 2016-09-26 | 2016-11-23 | 昆山工研院新型平板显示技术中心有限公司 | Flexible substrate substrate and the preparation method of flexible OLED display |
| CN106935596A (en) * | 2017-02-22 | 2017-07-07 | 武汉华星光电技术有限公司 | A kind of preparation method of flexible base board |
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Application publication date: 20171212 |