CN107123371B - A kind of flexible display panels and preparation method thereof, flexible display apparatus - Google Patents
A kind of flexible display panels and preparation method thereof, flexible display apparatus Download PDFInfo
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- CN107123371B CN107123371B CN201710289103.8A CN201710289103A CN107123371B CN 107123371 B CN107123371 B CN 107123371B CN 201710289103 A CN201710289103 A CN 201710289103A CN 107123371 B CN107123371 B CN 107123371B
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the present invention provides a kind of flexible display panels and preparation method thereof, flexible display apparatus, is related to flexible display technologies field, influence when separating flexible substrates with bearing substrate for reducing, to display device.The production method of flexible display panels includes: first fexible film precursor solution of the coating containing thermal expansion particle on bearing substrate, to form the first flexible base layer；Wherein, thermal expansion particle is made of shell with the intracorporal core material of shell is coated on；Coating does not include the second fexible film precursor solution of thermal expansion particle in the first flexible base layer, to form the second flexible base layer；Display device is prepared in the second flexible base layer；The bearing substrate for being formed with display device is heated, so that the core material gasification of thermal expansion particle, casing rupture, and the first flexible base layer is stripped down from bearing substrate, obtain flexible display panels.
Description
Technical field
The present invention relates to flexible display technologies fields more particularly to a kind of flexible display panels and preparation method thereof, flexibility
Display device.
Background technique
Flexible display apparatus refers to the bending deformed display device of display panel comprising flexible organic electro-luminescence is aobvious
The multiple types such as showing device, flexible electrophoretic display apparatus, flexible liquid crystal device.Compared with display device, Flexible Displays dress
It sets flexible or folds, there are many advantages, such as impact resistance, shock resistance are strong, light-weight, easy to carry, therefore Flexible Displays
Device is more and more widely used.
The preparation method of existing flexible display apparatus is: flexible substrates are passed through fitting or coating (coating) etc.
It is attached on bearing substrate, then prepares display device on a flexible substrate, finally shell the flexible substrates of completion and bearing substrate
From, obtain include flexible substrates flexible display panels.
Flexible substrates and bearing substrate are removed currently, generalling use laser lift-off (Laster Lift-Off) mode.So
And using laser lift-off during, may have fraction of laser light pass through flexible substrates be irradiated on display device, thus to display
The performance of element impacts (such as threshold voltage), in addition, Laser beam energy distribution is uneven, also be easy to cause to flexible substrates
Damage.
Summary of the invention
The embodiment of the present invention provides a kind of flexible display panels and preparation method thereof, flexible display apparatus, for reducing
Influence when flexible substrates are separated with bearing substrate, to display device.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The one side of the embodiment of the present invention provides a kind of production method of flexible display panels, comprising: on bearing substrate
First fexible film precursor solution of the coating containing thermal expansion particle, to form the first flexible base layer；Wherein, the heat is swollen
Swollen particle is made of shell with the intracorporal core material of the shell is coated on；It is swollen not include heat for coating in first flexible base layer
Second fexible film precursor solution of swollen particle, to form the second flexible base layer；It is made in second flexible base layer
Standby display device；The bearing substrate for being formed with the display device is heated, so that the core of the thermal expansion particle
Material gasification, casing rupture, and first flexible base layer is stripped down from the bearing substrate, obtain Flexible Displays face
Plate.
Optionally, the thermal expansion particle is microspheres, and the diameter of the microspheres is 1-40 μm.
Optionally, percent by volume of the thermal expansion particle in the first fexible film precursor solution is
0.5%-10%.
Optionally, before the second flexible base layer of the formation, the preparation method further include: to the described first flexible base
Bottom is solidified；Wherein, curing mode is illumination curing or is heating and curing.
Optionally, the material for constituting the shell includes thermoplasticity high molecular material；Constitute the material packet of the core material
Include liquid organic hydrocarbon material.
Optionally, the material for constituting the shell of the thermal expansion particle includes acrylic resin quasi polymer；Described in composition
The material for thermally expanding the core material of particle includes alkanes material；When the curing mode is heating, it is flexible to constitute described first
The material of thin film precursor solution includes polyimide material；Alternatively, constituting described first when the curing mode is illumination
The material of fexible film precursor solution includes polyacrylate material.
Optionally, in the first fexible film precursor solution except it is described thermal expansion particle in addition to part material with
The material of the second fexible film precursor solution is identical.
Optionally, before the described pair of bearing substrate for being formed with the display device heats, the production method is also
It include: that processing is packaged to the display device.
The another aspect of the embodiment of the present invention provides a kind of flexible display panels, comprising: the flexible base of first set gradually
Bottom and the second flexible base layer, and the display device in second flexible base layer；Wherein, described first is flexible
Shell after there is the light formed after thermal expansion particle rupture to take out hole and the thermal expansion particle rupture in basal layer is residual
Piece.
The another aspect of the embodiment of the present invention provides a kind of flexible display apparatus, including Flexible Displays face as described above
Plate.
The embodiment of the present invention provides a kind of flexible display panels and preparation method thereof, flexible display apparatus, the production side
Method includes: firstly, coating is containing the fexible film precursor solution for thermally expanding particle on bearing substrate, to form the first flexibility
Basal layer；Wherein, thermal expansion particle is made of shell with the intracorporal core material of shell is coated on.Then, in the first flexible base layer
Coating does not include the second fexible film precursor solution of thermal expansion particle, to form the second flexible base layer.Next,
Display device is prepared in two flexible base layers.Finally, being heated to the bearing substrate for being formed with display device, so that thermal expansion
The core material gasification of particle, casing rupture, and the first flexible base layer is stripped down from bearing substrate, to obtain flexible aobvious
Show panel.
Based on this, when being heated to bearing substrate, the core material gasification in thermal expansion particle, casing rupture, therefore core material
The gas that gasification generates is released.Since the first flexible base layer is located on bearing substrate, the core material in particle is thermally expanded
The gas that gasification is formed can make the adhesion strength between the first flexible base layer and bearing substrate reduce, to be easy to soft by first
Property basal layer is separated with bearing substrate.In addition, separated the first flexible base layer with bearing substrate by heating method, it can
To reduce the damage to display device.So, it can reduce when separating the first flexible base layer with bearing substrate to shape
At flexible display panels influence.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of production method flow chart of flexible display panels provided in an embodiment of the present invention；
Fig. 2 a-2d is the process schematic that flexible display panels are prepared according to method shown in FIG. 1；
Fig. 3 is a kind of structural schematic diagram for thermally expanding particle provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of flexible display panels provided in an embodiment of the present invention.
Appended drawing reference:
01- flexible display panels；10- bearing substrate；The first flexible base layer of 11-；The second flexible base layer of 12-；13- is aobvious
Show device；20- thermally expands particle；201- shell；202- core material.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of production method of flexible display panels, as shown in Figure 1, comprising:
Step S101, as shown in Figure 2 a, first fexible film of the coating containing thermal expansion particle 20 on bearing substrate 10
Precursor solution, to form the first flexible base layer 11；Wherein, above-mentioned thermal expansion particle 20 as shown in figure 3, by shell 201 with
The core material 202 being coated in shell 201 is constituted.
It should be noted that the first, material of the invention to the above-mentioned bearing substrate 10 of composition is without limitation.It is exemplary, on
Stating bearing substrate 10 can be glass substrate or metal substrate.
The second, the material of the invention to the first fexible film precursor solution of composition is without limitation.Optionally, it constitutes above-mentioned
The material of first fexible film precursor solution may include the polymer based on polyester, the polymer based on silicone, acrylic acid
One or more of polymer, polymer its copolymer based on polyolefin.It is further alternative, it may include poly- to benzene two
Formic acid glycol ester (English name: Polyethylene terephthalate, English abbreviation: PET), poly terephthalic acid fourth
Diol ester (English name: polybutylene terephthalate, English abbreviation: PBT), polysilane, polysiloxanes, poly- silicon
Azane, Polycarbosilane, polyacrylate, polymethacrylates, poly- ethyl propylene acid esters, poly- ethylmethyl acrylate, ring
Olefin copolymer (COC), cyclic olefin polymer (COP), polyethylene (English name: polyethylene, English abbreviation: PE),
Polypropylene (English name: polypropylene, English abbreviation: PP), polyimides (English name: Polyimide, English letter
Claim: PI), polymethyl methacrylate (English name: polymethyl methacrylate, English abbreviation: PMMA), polyphenyl
Ethylene (English name: Polystyrene, English abbreviation: PS), polyacetals (English name: polyformaldehyde, English
Referred to as: POM), polyether-ether-ketone (PEEK), polyether sulfone (English name: Polyethersulfone, English abbreviation: PES), poly- four
Vinyl fluoride (English name: polytetrafluoroethylene, English abbreviation: PTFE), polyvinyl chloride (English name:
Polyvinylchlorid, English abbreviation: PVC), polycarbonate (English name: Polycarbonate, English abbreviation: PC),
Kynoar (English name: Polyvinylidene fluoride；English abbreviation: PVDF), perfluoroalkyl (English name:
Polyfluoroalkoxy, English abbreviation: PFA), acrylonitritrile-styrene resin (English name: acrylonitrile-
styrene copolymer；One or more of English abbreviation: SAN).
Third, the characteristic for thermally expanding particle 20 are: it is heated when thermally expanding particle 20, reach the glass transition temperature of shell 201
When, shell 201 will soften, and have certain plasticity.The core material 202 being coated in shell 201 can gasify production when being heated
Raw certain pressure, so that shell 201 expands；When expansion, the tension of the pressure and housing wall that are generated by core material 202 is put down
Weighing apparatus, at a certain temperature, temperature is higher, and the pressure that core material 202 generates is bigger, and housing wall will continue to balance this pressure
It stretches, at this point, thermal expansion particle 20 keeps foam stabilizing form.If continuing to heat thermal expansion particle 20, shell 201 can be after
It is thinning that continuous expansion causes housing wall to continue, when the tension of shell 201 is not enough to offset the pressure that the gasification of core material 202 generates, shell
Body 201 can rupture, and the gas that the gasification of core material 202 generates is released.The present invention does not do the structure and material of thermal expansion particle 20
Limit, it is exemplary, as shown in figure 3, thermal expansion particle shell 201 be it is rectangular, core material 202 be circle.
It can be very good to guarantee to thermally expand the gas that particle 20 generates when heated so that the first flexible base layer 11
It is separated with bearing substrate 10, it is preferred that the material for constituting shell 21 includes thermoplasticity high molecular material；Constitute the material of core material 22
Material includes liquid organic hydrocarbon material.
On this basis, it continues to execute: step S102, as shown in Figure 2 b, coating in the first flexible base layer 11 and do not wrap
Second fexible film precursor solution of the particle 20 containing thermal expansion, to form the second flexible base layer 12.
Step S103, as shown in Figure 2 c, display device 13 is prepared in the second flexible base layer 12.
It should be noted that the present invention to the structure of display device 13 without limitation.Exemplary, display device 13 can be
Organic Light Emitting Diode (full name in English: Organic Light-Emitting Diode, English abbreviation: OLED), or be liquid
Crystal display (full name in English: Liquid Crystal Display, English abbreviation: LCD), or be two pole of macromolecular LED
It manages (full name in English: polymer light-emitting diode, English abbreviation: PLED).
Step S104, as shown in Figure 2 d, to formation as shown in Figure 2 c have the bearing substrate 10 of aforementioned display device part 13 into
Row heating, so that the core material 202 in above-mentioned thermal expansion particle gasify, the rupture of shell 201, and by the first flexible base layer 11 from holding
It is stripped down on carried base board 10, obtains flexible display panels 01 as shown in Figure 4.
Based on this, as shown in Figure 2 d, when being heated to bearing substrate 10, the gasification of core material 202 in thermal expansion particle, shell
Body 201 ruptures, therefore the gas that the gasification of core material 202 generates is released.Since the first flexible base layer 11 is located at bearing substrate 10
On, therefore the gas for thermally expanding the gasification formation of core material 202 in particle 20 can make the first flexible base layer 11 and bearing substrate
Adhesion strength between 10 reduces, to be easy to separate the first flexible base layer 11 with bearing substrate 10.In addition, by adding
Hot mode separates the first flexible base layer 11 with bearing substrate 10, it is possible to reduce the damage to display device 13.So,
Influence when separating the first flexible base layer 11 with bearing substrate 10 to the flexible display panels 01 of formation can be reduced.
In addition, display device 13 will not usually cover the first flexible base layer 11 when making flexible display panels 01
Completely, therefore the light of display device 13 is when the first flexible base layer 11 is emitted, and do not cover display device 13 first is flexible
The beam projecting amount of the part of basal layer 11 is less, so that the light extraction efficiency of flexible display panels 01 is lower.
The flexible display panels 01 that production method provided in an embodiment of the present invention is formed, as shown in figure 4, the first flexible substrates
The light formed after rupturing in layer 11 with thermal expansion particle 20 takes out the shell relic after hole A, and the thermal expansion rupture of particle 21
(not shown).In the case, when the light of display device 13 exposes to the first flexible base layer 11, due to first soft
Property basal layer 11 have light take out hole A, light take out hole A can change expose to the light take out hole A light refraction angle, light
The part for the first flexible base layer 11 that not shown device 13 covers may be refracted light by taking out hole A, so as to increase
The area for adding light to be emitted by the first flexible base layer 11, and then improve the light extraction efficiency of display device 13.
In addition, with the lightening development of flexible display panels 01, while in order to enable the flexible display panels 01 formed
With good flexible, the thickness of single-layer flexible basal layer is not more than 50 μm in usual flexible display panels 01.In this feelings
Under condition, it is preferred that thermal expansion particle 20 is microspheres, and the diameters of microspheres is 1-40 μm, so, can be to prevent
When only forming the first flexible base layer 11 by the first fexible film precursor solution of coating, due to thermally expanding the size of particle 20
Greatly the first flexible base layer 11 is caused to damage very much.
On this basis, the gas that the embodiment of the present invention is formed by the gasification of core material 202 in thermal expansion particle 20, so that
Adhesion strength between first flexible base layer 11 and bearing substrate 10 reduces, so that the first flexible base layer 11 and carrying base
Plate 10 is easily isolated.
When thermally expanding percent by volume of the particle 20 in the first fexible film precursor solution less than 0.5%, core material
The gas that 202 gasifications are formed is very few, so that the influence to the adhesion strength between the first flexible base layer 11 and bearing substrate 10 is smaller；
When thermally expanding percent by volume of the particle 20 in the first fexible film precursor solution greater than 10%, the gasification shape of core material 202
At gas it is excessive, which can not only make the first flexible base layer 11 and the adhesion strength of bearing substrate 10 reduce, and can also make
The adhesion strength obtained between the first flexible base layer 11 and the second flexible base layer 12 reduces, so that the Flexible Displays face formed
The stability of plate 01 is poor.
It to sum up states, it is preferred that thermally expanding percent by volume of the particle 20 in the first fexible film precursor solution is
0.5%-10% so can both reduce the adhesion strength between the first flexible base layer 11 and bearing substrate 10, can also be with
Reduce the gas of the gasification formation of core material 202 as far as possible to viscous between the first flexible base layer 11 and the second flexible base layer 12
The influence of attached power.
On this basis, in order to further increase the adherency between the first flexible base layer 11 and the second flexible base layer 12
Power, optionally, the material and the second flexible thin of the part in the first fexible film precursor solution in addition to thermally expanding particle 20
The material of film precursor solution is identical.In the case, the first flexible base layer 11 and the second flexible base layer 12 of formation
Material proximate is identical, therefore adhesion strength between the two is higher.
In addition, when in the second flexible base layer 12 including thermal expansion particle 20, when executing step S104, thermal expansion
The gas that the gasification of core material 22 of particle 20 generates will affect the adhesion strength between display device 13 and the second flexible base layer 12, thus
Influence the stability of the flexible display panels 01 formed.
Based on this, in order to prevent before separating the first flexible base layer 11 with bearing substrate 10, the first flexible substrates
Thermal expansion particle 20 in layer 11 penetrates into the second flexible base layer 12, optionally, before executing step S102, to first
Flexible base layer 11 is solidified；Wherein, curing mode is illumination curing or is heating and curing.
Below in conjunction with specific embodiment, respectively to by being heating and curing and illumination curing carries out the first flexible base layer 11
When solidification, the manufacturing process of flexible display panels 01 is specifically illustrated.
In embodiment one, the present embodiment, the first flexible base layer 11 is solidified by heating method.In this situation
Under, the production method of flexible display panels 01 includes:
Step S201, as shown in Figure 2 a, first fexible film of the coating containing thermal expansion particle 20 on bearing substrate 10
Precursor solution, to form the first flexible base layer 11.
Wherein, the material for constituting the first fexible film precursor solution includes polyimides.Constitute shell 21 material be
Acrylic resin quasi polymer, constitute core material 22 material be alkanes gas, at this time shell 21 rupture temperature be 250~
260℃.The percent by volume of microspheres is 5% in first fexible film precursor solution.
Step S202, the bearing substrate 10 for being formed with the first flexible base layer 11 is heated, so that first is flexible
Basal layer 11 solidifies.Wherein, heating temperature is 220 DEG C, and heating time is 1 hour.
Step S203, as shown in Figure 2 b, coating does not include the second of thermal expansion particle 20 in the first flexible base layer 11
Fexible film precursor solution, to form the second flexible base layer 12.
Wherein, in addition to thermally expanding particle 20, the material of the second fexible film precursor solution and the first fexible film forerunner
Liquid solution is identical.
Optionally, the bearing substrate 10 for being formed with the second flexible base layer 12 is heated, so that the second flexible base
Bottom 12 solidifies.Wherein, heating temperature is 220 DEG C.
Step S204, as shown in Figure 2 c, display device 13 is prepared in the second flexible base layer 12.
Step S205, as shown in Figure 2 d, to formation as shown in Figure 2 c have the bearing substrate 10 of aforementioned display device part 13 into
Row heating so that the core material 202 in above-mentioned thermal expansion particle 20 gasify, shell 201 rupture, and by the first flexible base layer 11 from
It is stripped down on bearing substrate 10, obtains flexible display panels 01 as shown in Figure 4.
In the present embodiment, before step S205, it is heating and curing to the first flexible base layer 11, so as to prevent
Thermal expansion particle 20 in first flexible base layer 11 penetrates into the second flexible base layer 12.Due to the above-mentioned temperature being heating and curing
Degree will not to thermally expand the gas release that the gasification of core material 22 in particle 20 is formed lower than the temperature that shell 21 ruptures.
In embodiment two, the present embodiment, the first flexible base layer 11 is solidified by illumination methods.It is soft to constitute first
Property thin film precursor solution material be polyacrylate.The material for constituting thermal expansion particle 20 and the material phase in embodiment one
Together.In the case, unlike the production method of the flexible display panels 01 of embodiment one:
Step S202, ultraviolet light is carried out to the bearing substrate 10 for being formed with the first flexible base layer 11, so that the
The solidification of one flexible base layer 11.Wherein, the light energy of ultraviolet light is 1500mJ/cm2。
In step S203, ultraviolet light is carried out to the bearing substrate 10 for being formed with the second flexible base layer 12, so that
The solidification of second flexible base layer 12.Wherein, the light energy of ultraviolet light is 1500mJ/cm2。
In the present embodiment, before step S205, to the first flexible base layer 11 carry out ultraviolet light solidification, so as to prevent
Only the thermal expansion particle 20 in the first flexible base layer 11 penetrates into the second flexible base layer 12.Since ultraviolet light will not
So that the gasification of core material 22 in thermal expansion particle 20 forms gas.
On this basis, the ability for preventing steam from invading to improve above-mentioned flexible display panels 01 is optionally executing
Before step S104, the production method further include: processing is packaged to display device 13.
It is exemplary, when aforementioned display device part 13 is OLED device, it is above-mentioned processing is packaged to display device 13 can be with
Are as follows: thin-film encapsulation layer is formed away from the surface of the second flexible base layer 12 in display device 13, wherein thin-film encapsulation layer is coated on
On aforementioned display device part 13.In the case, thin-film encapsulation layer can stop steam.
In addition, the cleanliness in order to guarantee the flexible display panels 01 to be formed, above-mentioned heating process and ultraviolet light
Process carries out under vacuum conditions.
It should be noted that above-described embodiment one and two is the manufacturing process of flexible display panels 01 provided by the invention
Specific embodiment, the material being directed to be not to constitute fexible film precursor solution and thermally expand particle 20 material
Limitation.Those skilled in the art clearly instruct, as long as satisfaction solidifies the first flexible base layer 11, will not make
The material that the shell 21 of thermal expansion particle 20 ruptures is within the scope of the invention.
The embodiment of the present invention provides a kind of flexible display panels 01 as shown in Figure 4, comprising: first set gradually is flexible
Basal layer 11 and the second flexible base layer 12, and the display device 13 in above-mentioned second flexible base layer 12.
Wherein, there is the light formed after thermal expansion particle rupture to take out hole A, and thermal expansion in the first flexible base layer 11
Shell relic (not shown) after the rupture of particle 20.
Above-mentioned flexible display panels 01 provided in an embodiment of the present invention production method according to figure 1 is formed.Specifically,
When heating to bearing substrate 10, the gasification of core material 202, the rupture of shell 201 in particle 20, therefore 202 gas of core material are thermally expanded
Change the gas generated to be released.Since the first flexible base layer 11 is located on bearing substrate 10, thermally expand in particle 20
The gas that the gasification of core material 202 is formed can make the adhesion strength between the first flexible base layer 11 and bearing substrate 10 reduce, thus
It is easy to separate the first flexible base layer 11 with bearing substrate 10.In addition, passing through heating method for the first flexible base layer
11 separate with bearing substrate 10, it is possible to reduce the damage to display device 13.So, it can reduce the first flexible substrates
To the influence of the flexible display panels 01 of formation when layer 11 is separated with bearing substrate 10.
The embodiment of the present invention provides a kind of flexible display apparatus, including flexible display panels as described above 01, have with
The identical structure of flexible display panels 01 and beneficial effect that previous embodiment provides, since previous embodiment is to the flexibility
The structure and beneficial effect of display panel 01 are described in detail, and details are not described herein again.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of production method of flexible display panels characterized by comprising
First fexible film precursor solution of the coating containing thermal expansion particle on bearing substrate, to form the first flexible substrates
Layer；Wherein, the thermal expansion particle is made of shell with the intracorporal core material of the shell is coated on；
Coating does not include the second fexible film precursor solution of thermal expansion particle in first flexible base layer, to be formed
Second flexible base layer；
Display device is prepared in second flexible base layer；
The bearing substrate for being formed with the display device is heated, so that the core material gasification of the thermal expansion particle,
Casing rupture, and first flexible base layer is stripped down from the bearing substrate, obtain flexible display panels.
2. manufacturing method according to claim 1, which is characterized in that the thermal expansion particle is microspheres, described
The diameter of microspheres is 1-40 μm.
3. manufacturing method according to claim 1, which is characterized in that the thermal expansion particle is in first fexible film
Percent by volume in precursor solution is 0.5%-10%.
4. manufacturing method according to claim 1, which is characterized in that described before the second flexible base layer of the formation
Production method further include:
First flexible base layer is solidified；Wherein, curing mode is illumination curing or is heating and curing.
5. manufacturing method according to claim 1, which is characterized in that constitute the material packet of the shell of the thermal expansion particle
Include thermoplasticity high molecular material；The material for constituting the core material of the thermal expansion particle includes liquid organic hydrocarbon material.
6. production method according to claim 4, which is characterized in that constitute the material packet of the shell of the thermal expansion particle
Include acrylic resin quasi polymer；The material for constituting the core material of the thermal expansion particle includes alkanes material；
When the curing mode is heating, the material for constituting the first fexible film precursor solution includes polyimides material
Material；
Alternatively, the material for constituting the first fexible film precursor solution includes poly- third when the curing mode is illumination
Olefin(e) acid ester material.
7. manufacturing method according to claim 1, which is characterized in that remove institute in the first fexible film precursor solution
The material for stating the part except thermal expansion particle is identical as the material of the second fexible film precursor solution.
8. manufacturing method according to claim 1, which is characterized in that the described pair of carrying base for being formed with the display device
Before plate is heated, the production method further include:
Processing is packaged to the display device.
9. a kind of flexible display panels characterized by comprising the first flexible base layer and the second flexible substrates set gradually
Layer, and the display device in second flexible base layer；
Wherein, have the light taking-up hole formed after thermal expansion particle rupture and the heat swollen in first flexible base layer
Shell relic after swollen particle rupture.
10. a kind of flexible display apparatus, which is characterized in that including flexible display panels as claimed in claim 9.
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| CN107441776B (en) * | 2017-09-11 | 2020-02-07 | 武汉华星光电半导体显示技术有限公司 | Defoaming system, defoaming method and display panel |
| CN207818084U (en) * | 2017-11-16 | 2018-09-04 | 华为技术有限公司 | A flexible cover, a flexible display device and a flexible terminal product |
| CN108878648A (en) * | 2018-06-12 | 2018-11-23 | 武汉华星光电半导体显示技术有限公司 | A kind of flexible display panels and its manufacturing method |
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| CN102636898B (en) * | 2012-03-14 | 2014-03-12 | 京东方科技集团股份有限公司 | Manufacturing method of flexible display devices |
| KR102087647B1 (en) * | 2012-09-27 | 2020-03-11 | 닛테츠 케미컬 앤드 머티리얼 가부시키가이샤 | Display device production method |
| CN103700662B (en) * | 2013-12-09 | 2017-02-15 | 京东方科技集团股份有限公司 | Bearing substrate, and method for manufacturing flexible display device |
| CN105131860A (en) * | 2015-10-26 | 2015-12-09 | 衡山县佳诚新材料有限公司 | Adhesive tape capable of losing stickiness through pyrolysis |
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