CN110783389A - Manufacturing method of flexible display screen and flexible display screen of temporary substrate to be stripped - Google Patents
Manufacturing method of flexible display screen and flexible display screen of temporary substrate to be stripped Download PDFInfo
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- CN110783389A CN110783389A CN201911052964.XA CN201911052964A CN110783389A CN 110783389 A CN110783389 A CN 110783389A CN 201911052964 A CN201911052964 A CN 201911052964A CN 110783389 A CN110783389 A CN 110783389A
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- 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
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
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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
Abstract
The invention provides a manufacturing method of a flexible display screen and the flexible display screen of a temporary substrate to be stripped, and relates to the technical field of display, wherein the manufacturing method of the flexible display screen comprises the steps of providing the temporary substrate; forming a sacrificial layer and a support film layer which are sequentially stacked on the temporary substrate, wherein the support film layer at least comprises a hardened coating; forming a flexible substrate and a light emitting layer sequentially stacked on the hardened coating; and removing the sacrificial layer and separating the temporary substrate. According to the invention, the mode that the hardening coating is arranged between the sacrificial layer and the flexible substrate replaces the mode that the flexible substrate is supported by bonding the back protective film through the optical cement after the temporary substrate is stripped in the prior art, the hardening coating not only can support the flexible substrate and each film layer above the flexible substrate, but also has smaller hardening coating thickness, so that the whole thickness of the flexible display screen is reduced, and the possibility that the flexible display screen is easy to generate stress concentration to cause display failure when being folded or curled is reduced or avoided.
Description
Technical Field
The invention relates to the technical field of display, in particular to a manufacturing method of a flexible display screen and the flexible display screen of a temporary substrate to be stripped.
Background
With the gradual development of display technology, flexible display screens are popular with more and more users, and in the panel manufacturing process of the flexible display screens, in order to realize folding and curling, a temporary substrate in a traditional hard display screen is replaced by a PI (polyimide) flexible substrate. In order to Protect a flexible PI substrate, a conventional flexible display screen usually attaches a BPF (Back protective Film) to the bottom of the flexible PI substrate, that is, after a laser lift-off process, a stack layer above the PI substrate and the PI substrate are separated from a temporary substrate, and then the Back protective Film is adhered to the bottom of the PI substrate by using an optical adhesive psa (pressure sensitive adhesive).
However, since the flexible display panel needs a smaller thickness of the panel body in order to realize the folding and curling functions, if the panel body is too thick, stress concentration occurs during folding and curling of the panel body, which causes a problem of display failure, and the thickness of the back protective film and the whole optical cement in the conventional flexible display panel is generally about 100 μm, which causes a problem of large thickness of the whole flexible display panel and easy display failure.
Disclosure of Invention
The embodiment of the invention provides a manufacturing method of a flexible display screen and the flexible display screen of a temporary substrate to be stripped, and aims to solve the problem that the conventional flexible display screen is easy to display failure.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
in one aspect, an embodiment of the present invention provides a method for manufacturing a flexible display screen, where the method includes:
providing a temporary substrate;
forming a sacrificial layer and a support film layer which are sequentially stacked on the temporary substrate, wherein the support film layer at least comprises a hardened coating;
forming a flexible substrate and a light emitting layer which are sequentially laminated on the hardened coating;
and removing the sacrificial layer and separating the temporary substrate.
Compared with the prior art, the manufacturing method of the flexible display screen provided by the embodiment of the invention has the following advantages:
in the manufacturing method of the flexible display screen provided by this embodiment, the sacrificial layer, the support film layer and the flexible substrate are sequentially coated on the temporary substrate in a stacking manner, the hardened coating in the support film layer is disposed between the sacrificial layer and the flexible substrate and is bonded to the flexible substrate, and after the sacrificial layer and the temporary substrate are removed, the support film layer can directly support and protect the flexible substrate without adhesion.
As an improvement of the method for manufacturing a flexible display screen according to the embodiment of the present invention, the step of forming the sacrificial layer and the support film layer stacked in sequence on the temporary substrate includes: a sacrificial layer and a hardened coating are sequentially applied.
As an improvement of the method for manufacturing a flexible display screen according to the embodiment of the present invention, the step of forming the sacrificial layer and the support film layer stacked in sequence on the temporary substrate includes: the sacrificial layer, the first hardening coating, the flexible resin layer and the second hardening coating are sequentially coated.
As an improvement of the manufacturing method of the flexible display screen according to the embodiment of the present invention, the step of removing the sacrificial layer includes: and stripping the sacrificial layer by using laser.
On the other hand, the embodiment of the invention also provides a flexible display screen of the temporary substrate to be stripped, which comprises the temporary substrate, a sacrificial layer, a support film layer, a flexible substrate and a light emitting layer which are sequentially stacked, wherein the support film layer at least comprises a hardened coating.
Compared with the prior art, the flexible display screen of the temporary substrate to be stripped provided by the embodiment of the invention has the following advantages:
the flexible display screen of the temporary substrate to be stripped provided by the embodiment of the invention comprises a light emitting layer, a flexible substrate and a supporting film layer with a hardened coating, wherein the arrangement of the hardened coating replaces the mode of supporting the flexible substrate by adhering a back surface protective film by using optical cement in the prior art, the hardened coating not only can support the flexible substrate and each film layer above the flexible substrate, but also has the thickness of the hardened coating which is smaller than the thickness of the optical cement and the back surface protective film in the prior art, so that the integral thickness of the flexible display screen is reduced, and the possibility that the flexible display screen is easy to generate stress concentration and cause display failure in folding or curling is reduced or avoided.
As an improvement of the flexible display screen of the temporary substrate to be stripped in the embodiment of the invention, the supporting film layer comprises a hardened coating.
As an improvement of the flexible display screen of the temporary substrate to be stripped in the embodiment of the invention, the supporting film layer comprises a first hardened coating and a second hardened coating.
As an improvement of the flexible display screen to be peeled off the temporary substrate according to the embodiment of the invention, the support film layer further includes a flexible resin layer, and the flexible resin layer is disposed between the first hardened coating and the second hardened coating.
As an improvement of the flexible display screen of the temporary substrate to be peeled off in the embodiment of the invention, the flexible display screen of the temporary substrate to be peeled off further includes a polarizing layer, the polarizing layer is disposed on a side of the light emitting layer away from the flexible substrate, and the polarizing layer is bonded to the light emitting layer through an optical adhesive.
As an improvement of the flexible display screen of the temporary substrate to be peeled off in the embodiment of the invention, the flexible display screen of the temporary substrate to be peeled off further includes a cover plate, the cover plate is arranged on one side of the polarizing layer departing from the light emitting layer, and the cover plate is bonded with the polarizing layer through optical cement.
In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantageous effects brought by the technical features of the technical solutions described above, other technical problems that can be solved by the manufacturing method of the flexible display panel and the flexible display panel to be peeled off the temporary substrate provided by the embodiments of the present invention, other technical features included in the technical solutions, and advantageous effects brought by the technical features will be further described in detail in the detailed description.
Drawings
In order to illustrate embodiments of the invention or prior art solutions more clearly, the drawings that are needed in the description of the embodiments of the invention or prior art will be briefly described below, it being understood that the drawings in the following description are only some embodiments of the invention, and that these drawings and the written description are not intended to limit the scope of the disclosed concept in any way, but rather to illustrate it to those skilled in the art by reference to specific embodiments, and that other drawings may be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of a method for manufacturing a flexible display screen according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a flexible display screen of a temporary substrate to be peeled according to a second embodiment of the present invention;
fig. 3 is a second schematic structural diagram of a flexible display screen of a temporary substrate to be peeled according to a second embodiment of the present invention.
Description of reference numerals:
10-a flexible substrate;
20-a light-emitting layer;
31-a first hardened coating;
32-a second hardened coating;
40-a sacrificial layer;
50-a temporary substrate;
60-a flexible resin layer;
70-a polarizing layer;
80-cover plate;
90-optical cement.
Detailed Description
The conventional flexible display screen is provided with a back protection film and optical cement on a flexible substrate, so that the whole thickness is large, stress concentration is easily generated when the flexible display screen is folded or curled, and the problem of display failure is caused.
In view of the above drawbacks, an embodiment of the present invention provides an improved technical solution, in which when a flexible display screen is manufactured, a sacrificial layer, a support film layer, and a flexible substrate are sequentially stacked and coated on a temporary substrate, a hardened coating in the support film layer is bonded to the flexible substrate, and after the sacrificial layer and the temporary substrate are removed, the support film layer can directly support and protect the flexible substrate without adhesion.
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, a method for manufacturing a flexible display screen according to an embodiment of the present invention includes:
s01: providing a temporary substrate 50; the temporary substrate 50 in this step may be provided as a glass substrate.
S02: forming a sacrificial layer 40 and a support film layer which are sequentially laminated on the temporary substrate 50, wherein the support film layer at least comprises a hardened coating;
in this step, the sacrificial layer 40 is coated on the temporary substrate 50, and the support film layer is coated on the side of the sacrificial layer 40 away from the temporary substrate 50. Specifically, the sacrificial layer 40 may be coated by evaporation or inkjet printing, and similarly, the support film layer may be coated by evaporation or inkjet printing. In this embodiment, the hardened coating may be provided as one layer or may be provided as a plurality of layers. The hardened coating layer in this embodiment is an organic film layer containing an inorganic material such as silicon or nitrogen. The hardened coating can be specifically an acrylic resin coating, the hardened coating is small in thickness, and the hardened coating not only can play a role in reducing the overall thickness of the flexible display screen, but also can play a role in protecting the flexible substrate 10 and preventing the flexible substrate 10 from being scratched.
S03: forming a flexible substrate 10 and a light emitting layer 20 laminated in this order on the hardened coating layer; on the basis of the above embodiment, the flexible substrate 10 is coated on the hardened coating, i.e., the flexible substrate 10 is adhered to the hardened coating. The hardness of the hardened coating is high, and after the sacrificial layer 40 is removed subsequently, the hardened coating adhered to the bottom of the flexible substrate 10 can support and protect the flexible substrate 10 without adhering a protective film to the bottom of the flexible substrate 10. It should be noted that the bottom of the flexible substrate 10 in this embodiment refers to a side of the flexible substrate 10 facing away from the light emitting surface.
S04: the sacrificial layer 40 is removed and the temporary substrate 50 is separated. When it is necessary to remove the temporary substrate 50, the sacrificial layer 40 may be removed by photolithography, and the temporary substrate 50 is separated after the sacrificial layer 40 is removed because the temporary substrate 50 is located below the sacrificial layer 40 and connected to the sacrificial layer 40.
In the manufacturing method of the flexible display screen provided by this embodiment, the sacrificial layer 40, the support film layer, and the flexible substrate 10 are sequentially coated on the temporary substrate 50 in a stacked manner, the hardening coating is disposed between the sacrificial layer 40 and the flexible substrate 10, and after the sacrificial layer 40 and the temporary substrate 50 are removed, the support film layer is used to support and protect the flexible substrate 10.
Further, in a possible implementation, the step of forming the sacrificial layer 40, the support film layer and the flexible substrate 10 stacked in sequence on the temporary substrate 50 includes: a sacrificial layer 40 and a hardened coating are applied in sequence. Specifically, in this embodiment, the sacrificial layer 40 is coated on the temporary substrate 50, then a hardened coating is coated on the sacrificial layer 40, the hardened coating is directly coated on the sacrificial layer 40, the flexible substrate 10 is formed on the side of the hardened coating away from the sacrificial layer 40, and is connected with the hardened coating, after the sacrificial layer 40 is subsequently removed, the hardened coating can support the flexible substrate 10 and each film layer above the flexible substrate, a protective film does not need to be adhered, the thickness of the hardened coating is small, and the thickness of the whole flexible display screen is reduced.
Further, in a possible implementation, the step of forming the sacrificial layer 40, the support film layer and the flexible substrate 10 stacked in sequence on the temporary substrate 50 includes: the sacrificial layer 40, the first hardened coating 31, the flexible resin layer 60, and the second hardened coating 32 are sequentially coated. The support film layer in this embodiment includes two hardened coating layers, a first hardened coating layer 31 and a second hardened coating layer 32, and in the coating process, the second hardened coating layer 32 is first coated on the sacrificial layer 40 formed on the temporary substrate 50, then a flexible intermediate layer may be coated on the second hardened coating layer 32, and finally the first hardened coating layer 31 is coated on the flexible intermediate layer, and specifically, the flexible intermediate layer may be the flexible resin layer 60.
Further, in a possible implementation, the step of removing the sacrificial layer 40 includes: the sacrificial layer 40 is stripped off using a laser. The sacrificial layer 40 is removed in this embodiment by laser lift-off. In addition, etching methods can also be used for removal.
Example two
The flexible display screen of the temporary substrate to be peeled off provided by the second embodiment of the invention comprises a temporary substrate 50, a sacrificial layer 40, a support film layer, a flexible substrate 10 and a light emitting layer 20 which are sequentially stacked, wherein the support film layer comprises at least one hardened coating.
Specifically, in this embodiment, the flexible display screen to be stripped of the temporary substrate includes a sacrificial layer 40, a flexible substrate 10 and a light emitting layer 20, which are stacked on a temporary substrate 50, where the flexible substrate 10 may specifically be a polyimide substrate, a polyurethane substrate, or a butylene terephthalate substrate; the light emitting layer 20 is formed on the first surface of the flexible substrate 10, as shown in fig. 2, the first surface of the flexible substrate 10 is a side of the flexible substrate 10 facing the light emitting surface, which is described by taking the orientation shown in fig. 2 as an example, and the first surface is the top surface of the flexible substrate 10. In the embodiment, the light emitting layer 20 includes an AMOLED (Active-matrix organic light-emitting diode) device, and it should be noted that a side of the light emitting layer 20 away from the flexible substrate 10 is a light emitting surface.
In this embodiment, the sacrificial layer 40 may be specifically configured as a flexible polyimide layer, and the temporary substrate 50 is configured as a rigid substrate, specifically, the temporary substrate 50 may be a glass substrate, a silicon substrate, or a metal substrate. Preferably, the glass substrate is selected, can be recycled and has no pollution to the environment. In the present embodiment, the sacrificial layer 40 is formed on the temporary substrate 50, and the flexible substrate 10 is formed on a side of the sacrificial layer 40 facing away from the temporary substrate 50. The temporary substrate 50 and the sacrificial layer 40 in this embodiment are used to temporarily support the flexible substrate 10 and various film layers on the flexible substrate 10.
The support film layer in this embodiment includes a hardened coating, and specifically, the hardened coating may be provided as one layer, and the hardened coating may also be provided as multiple layers. The hardened coating layer in this embodiment is an organic film layer containing an inorganic material such as silicon or nitrogen. The hardened coating can be specifically an acrylic resin coating, the hardened coating is small in thickness, and the hardened coating not only can play a role in reducing the overall thickness of the flexible display screen, but also can play a role in protecting the flexible substrate 10 and preventing the flexible substrate 10 from being scratched.
The support film layer may further include a flexible intermediate layer, and specifically, the material of the flexible intermediate layer may be the same as the material of the flexible substrate 10, i.e., a polyimide layer. The flexible intermediate layer may be provided as one layer or as a plurality of layers. As shown in fig. 2, when the hardened coating is provided in a plurality of layers, the thickness of each hardened coating may be set to 5 μm to 50 μm, for example, 5 μm, 10 μm, or 15 μm. Multiple hardened coatings may be formed in sequence and in contact, and flexible intermediate layers may also be provided between the multiple hardened coatings. It should be noted that the multiple hard coat layers and the flexible intermediate layer are used to support the hard coat layer, and the hard coat layer located at the outermost layer is used to protect the flexible substrate 10 to prevent the flexible substrate 10 from being scratched.
The hardened coating may also be provided as a layer, as shown in fig. 3. Describing the orientation shown in fig. 3 as an example, the hardened coating is formed on the bottom surface of the flexible substrate 10 in the present embodiment, and specifically, the thickness of the hardened coating may be set to 5 μm. The hardened coating in this embodiment can function to support the flexible substrate 10 and also function to protect the flexible substrate 10 to prevent the flexible substrate 10 from being scratched.
In addition to the above embodiment, the sacrificial layer 40, the hardened coating layer, and the flexible substrate 10 are sequentially formed on the temporary substrate 50 from the bottom up. In the present embodiment, the thickness of the sacrificial layer 40 is set to be 5 μm to 20 μm, and specifically may be set to be 8.5 μm; the hardened coating may be set to 5 μm to 50 μm. When the temporary substrate 50 needs to be removed, the sacrificial layer 40 can be removed by laser lift-off, so that the temporary substrate 50 is removed. After the temporary substrate 40 is peeled off, the display device can be applied to any display device with a display function, such as a mobile phone, a tablet computer, a smart watch, an electronic book, a navigator, a television, a digital camera, and the like.
In summary, in the flexible display panel of the temporary substrate to be peeled provided by the second embodiment of the present invention, the hardened coating is disposed on the side of the flexible substrate 10 away from the light emitting layer 20, and the manner of supporting the flexible substrate 10 by adhering the back protection film with an optical adhesive in the prior art is replaced by the hardened coating, and the hardened coating can support the flexible substrate 10 and each film layer above the flexible substrate, and has a small thickness, so as to reduce the overall thickness of the flexible display panel, and reduce or avoid the possibility that the flexible display panel is easily subjected to stress concentration when folded or curled, which may cause display failure, and in addition, the hardened coating has an anti-scratch effect, and can protect the flexible substrate 10 and prevent the flexible substrate 10 from being scratched.
In one possible implementation, as shown in fig. 2, the support film layer includes a hardened coating.
In another possible implementation, as shown in fig. 3, the support film layer comprises two hardened coatings, in particular, a first hardened coating 31 and a second hardened coating 32. Specifically, the flexible display screen provided in this embodiment includes a support film layer disposed on a side of the flexible substrate 10 away from the light exit surface, specifically, as shown in fig. 3, the support film layer in this embodiment includes two hardened coatings: a first hardened coating 31 and a second hardened coating 32, wherein, described in the orientation shown in fig. 3, the first hardened coating 31 is provided on the bottom surface of the flexible substrate 10, i.e. the side of the flexible substrate 10 facing away from the light exit surface; the second hardened coating 32 is formed on the bottom surface of the first hardened coating 31, that is, the side of the first hardened coating 31 facing away from the light emitting surface, and the first hardened coating 31 and the second hardened coating 32 may be in direct contact, or a flexible intermediate layer may be provided between the first hardened coating 31 and the second hardened coating 32, and when the flexible intermediate layer is provided between the first hardened coating 31 and the second hardened coating 32, the first hardened coating 31 and the second hardened coating 32 are in contact connection with the flexible intermediate layer, respectively. In this embodiment, the thicknesses of the first hardened coating 31 and the second hardened coating 32 may be equal or different.
In one possible implementation, the support film layer further includes a flexible resin layer 60, the flexible resin layer 60 being disposed between the first hardened coating 31 and the second hardened coating 32. Specifically, as shown in fig. 3, the support film layer in the present embodiment includes a first hardened coating 31 and a second hardened coating 32, and the flexible intermediate layer is specifically provided as a flexible resin layer 60. Describing by way of example the orientation shown in fig. 3, the temporary substrate 50 is formed with the sacrificial layer 40, the second hardened coating 32 is formed on the top surface of the sacrificial layer 40, i.e., the side of the sacrificial layer 40 facing away from the temporary substrate 50, and the flexible resin layer 60 is formed on the top surface of the second hardened coating 32, i.e., the side of the second hardened coating 32 facing away from the temporary substrate 50; the first hardened coating 31 is formed on the top surface of the flexible resin layer 60, i.e., the side of the flexible resin layer 60 facing away from the temporary substrate 50.
In the present embodiment, the thicknesses of the first hardened coating 31 and the second hardened coating 32 may be equal, for example, the thicknesses of the first hardened coating 31 and the second hardened coating 32 are both 5 μm, and the thickness of the flexible resin layer 60 located between the first hardened coating 31 and the second hardened coating 32 may be set to 15 μm. The three-layer structure of the first hardened coating 31, the flexible resin layer 60 and the second hardened coating 32 is used to support the flexible substrate 10 on the first hardened coating 31 and the respective film layers on the flexible substrate 10, and the second hardened coating 32 can also play a role in preventing the flexible substrate 10 from being scratched. Compared with the supporting structure formed by the supporting film in the prior art, the thickness of the three-layer structure formed by the first hardening coating 31, the flexible resin layer 60 and the second hardening coating 32 in the embodiment is smaller, and optical glue or other adhesives are not needed for bonding, so that the overall thickness of the flexible display screen is reduced, and the problems of stress concentration and poor display effect caused by overlarge thickness are solved.
In a possible implementation manner, the flexible display screen to be stripped of the temporary substrate further includes a polarizing layer 70, the polarizing layer 70 is disposed on a side of the light emitting layer 20 away from the flexible substrate 10, and the polarizing layer 70 is bonded to the light emitting layer 20 through an optical adhesive 90. Specifically, the polarizing layer 70 may be provided as a polyvinyl alcohol layer, and the thickness of the polarizing layer 70 may be 10 μm to 20 μm. The polarizing layer 70 can function as a polarizing function. As shown in fig. 2 and fig. 3, in the present embodiment, the polarizing layer 70 is disposed on a side of the light-emitting layer 20 away from the flexible substrate 10, and an adhesive is further disposed between the polarizing layer 70 and the light-emitting layer 20, specifically, the adhesive may be an optical adhesive 90.
In a possible implementation manner, the flexible display screen to be stripped of the temporary substrate further includes a cover plate 80, the cover plate 80 is disposed on a side of the polarizing layer 70 facing away from the light-emitting layer 20, and the cover plate 80 is bonded to the polarizing layer 70 through an optical adhesive 90. Specifically, the cover plate 80 may be a glass cover plate 80, as shown in fig. 2 and fig. 3, in this embodiment, the cover plate 80 is disposed on a side of the polarizing layer 70 facing away from the flexible substrate 10, and an adhesive is further disposed between the cover plate 80 and the polarizing layer 70, specifically, the adhesive may be an optical adhesive 90.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A manufacturing method of a flexible display screen is characterized by comprising the following steps:
providing a temporary substrate;
forming a sacrificial layer and a support film layer which are sequentially stacked on the temporary substrate, wherein the support film layer at least comprises a hardened coating;
forming a flexible substrate and a light emitting layer which are sequentially laminated on the hardened coating;
and removing the sacrificial layer and separating the temporary substrate.
2. The method for manufacturing a flexible display panel according to claim 1, wherein the step of forming a sacrificial layer and a support film layer stacked in this order on the temporary substrate includes: a sacrificial layer and a hardened coating are sequentially applied.
3. The method for manufacturing a flexible display panel according to claim 1, wherein the step of forming a sacrificial layer and a support film layer stacked in this order on the temporary substrate includes: the sacrificial layer, the first hardening coating, the flexible resin layer and the second hardening coating are sequentially coated.
4. The method for manufacturing the flexible display screen according to claim 1, wherein the step of removing the sacrificial layer comprises: and stripping the sacrificial layer by using laser.
5. The flexible display screen is characterized by comprising a temporary substrate, a sacrificial layer, a support film layer, a flexible substrate and a light emitting layer which are sequentially stacked, wherein the support film layer at least comprises a hardened coating.
6. A flexible display screen of claim 5 wherein the support film layer comprises a hardened coating.
7. A flexible display screen of claim 5 wherein the support film layer comprises a first hardened coating and a second hardened coating.
8. A flexible display screen of claim 7 wherein the support film layer further comprises a flexible resin layer disposed between the first hardened coating and the second hardened coating.
9. The flexible display screen of claim 5, further comprising a polarizing layer disposed on a side of the light-emitting layer facing away from the flexible substrate, wherein the polarizing layer is bonded to the light-emitting layer by an optical adhesive.
10. The flexible display screen of claim 9, further comprising a cover plate disposed on a side of the polarizing layer facing away from the light-emitting layer, wherein the cover plate is bonded to the polarizing layer by an optical adhesive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911052964.XA CN110783389A (en) | 2019-10-31 | 2019-10-31 | Manufacturing method of flexible display screen and flexible display screen of temporary substrate to be stripped |
| PCT/CN2020/097185 WO2021082473A1 (en) | 2019-10-31 | 2020-06-19 | Flexible display screen manufacturing method and flexible display screen on temporary substrate to be peeled |
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| CN201911052964.XA CN110783389A (en) | 2019-10-31 | 2019-10-31 | Manufacturing method of flexible display screen and flexible display screen of temporary substrate to be stripped |
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Cited By (9)
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| CN112406233A (en) * | 2020-11-20 | 2021-02-26 | 昆山工研院新型平板显示技术中心有限公司 | Protection film, flexible display module and flexible terminal |
| US10985344B2 (en) | 2017-10-27 | 2021-04-20 | Applied Materials, Inc. | Flexible cover lens films |
| WO2021082473A1 (en) * | 2019-10-31 | 2021-05-06 | 云谷（固安）科技有限公司 | Flexible display screen manufacturing method and flexible display screen on temporary substrate to be peeled |
| CN113129746A (en) * | 2021-04-01 | 2021-07-16 | 武汉华星光电技术有限公司 | Supporting composite board, preparation method thereof and display module |
| CN114068849A (en) * | 2020-07-31 | 2022-02-18 | 瀚宇彩晶股份有限公司 | Preparation method of flexible electronic device |
| CN114203729A (en) * | 2021-12-02 | 2022-03-18 | 武汉华星光电半导体显示技术有限公司 | Semi-finished OLED display panel and preparation method thereof |
| US11579339B2 (en) | 2018-05-10 | 2023-02-14 | Applied Materials, Inc. | Replaceable cover lens for flexible display |
| US11789300B2 (en) | 2019-06-26 | 2023-10-17 | Applied Materials, Inc. | Flexible multi-layered cover lens stacks for foldable displays |
| WO2024087063A1 (en) * | 2022-10-26 | 2024-05-02 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method therefor, and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966790A (en) * | 2015-05-14 | 2015-10-07 | 信利（惠州）智能显示有限公司 | Method for producing integrated touch control AMOLED display device |
| CN107502117A (en) * | 2016-06-14 | 2017-12-22 | 摩托罗拉移动有限责任公司 | Polymeric hardcoats and preparation method thereof |
| CN108054297A (en) * | 2017-12-12 | 2018-05-18 | 武汉华星光电半导体显示技术有限公司 | The production method of flexible display panels |
| CN209199986U (en) * | 2019-02-19 | 2019-08-02 | 京东方科技集团股份有限公司 | A kind of cover board for flexible base board, flexible display apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102009727B1 (en) * | 2012-11-26 | 2019-10-22 | 삼성디스플레이 주식회사 | Display device, method of manufacturing display device and carrier glass |
| CN105679806B (en) * | 2016-04-13 | 2018-07-17 | 京东方科技集团股份有限公司 | Flexible display substrates and its motherboard, preparation method, flexible display panels and its motherboard |
| CN108365128B (en) * | 2018-01-19 | 2019-12-03 | 昆山国显光电有限公司 | Prepare the method and flexible display device of flexible display device |
| CN109638178A (en) * | 2018-12-05 | 2019-04-16 | 武汉华星光电半导体显示技术有限公司 | Display device structure and manufacturing method |
| CN110120449B (en) * | 2019-05-24 | 2020-12-22 | 广东省半导体产业技术研究院 | Transparent flexible display system and preparation method thereof |
| CN110783389A (en) * | 2019-10-31 | 2020-02-11 | 云谷（固安）科技有限公司 | Manufacturing method of flexible display screen and flexible display screen of temporary substrate to be stripped |
-
2019
- 2019-10-31 CN CN201911052964.XA patent/CN110783389A/en active Pending
-
2020
- 2020-06-19 WO PCT/CN2020/097185 patent/WO2021082473A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966790A (en) * | 2015-05-14 | 2015-10-07 | 信利（惠州）智能显示有限公司 | Method for producing integrated touch control AMOLED display device |
| CN107502117A (en) * | 2016-06-14 | 2017-12-22 | 摩托罗拉移动有限责任公司 | Polymeric hardcoats and preparation method thereof |
| CN108054297A (en) * | 2017-12-12 | 2018-05-18 | 武汉华星光电半导体显示技术有限公司 | The production method of flexible display panels |
| CN209199986U (en) * | 2019-02-19 | 2019-08-02 | 京东方科技集团股份有限公司 | A kind of cover board for flexible base board, flexible display apparatus |
Cited By (14)
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| US11758757B2 (en) | 2017-10-27 | 2023-09-12 | Applied Materials, Inc. | Flexible cover lens films |
| US11579339B2 (en) | 2018-05-10 | 2023-02-14 | Applied Materials, Inc. | Replaceable cover lens for flexible display |
| US11934056B2 (en) | 2019-06-26 | 2024-03-19 | Applied Materials, Inc. | Flexible multi-layered cover lens stacks for foldable displays |
| US11940682B2 (en) | 2019-06-26 | 2024-03-26 | Applied Materials, Inc. | Flexible multi-layered cover lens stacks for foldable displays |
| US11789300B2 (en) | 2019-06-26 | 2023-10-17 | Applied Materials, Inc. | Flexible multi-layered cover lens stacks for foldable displays |
| US11940683B2 (en) | 2019-06-26 | 2024-03-26 | Applied Materials, Inc. | Flexible multi-layered cover lens stacks for foldable displays |
| WO2021082473A1 (en) * | 2019-10-31 | 2021-05-06 | 云谷（固安）科技有限公司 | Flexible display screen manufacturing method and flexible display screen on temporary substrate to be peeled |
| CN114068849A (en) * | 2020-07-31 | 2022-02-18 | 瀚宇彩晶股份有限公司 | Preparation method of flexible electronic device |
| CN112406233A (en) * | 2020-11-20 | 2021-02-26 | 昆山工研院新型平板显示技术中心有限公司 | Protection film, flexible display module and flexible terminal |
| CN113129746A (en) * | 2021-04-01 | 2021-07-16 | 武汉华星光电技术有限公司 | Supporting composite board, preparation method thereof and display module |
| CN114203729B (en) * | 2021-12-02 | 2023-10-17 | 武汉华星光电半导体显示技术有限公司 | Semi-finished OLED display panel and OLED display panel manufacturing method |
| CN114203729A (en) * | 2021-12-02 | 2022-03-18 | 武汉华星光电半导体显示技术有限公司 | Semi-finished OLED display panel and preparation method thereof |
| WO2024087063A1 (en) * | 2022-10-26 | 2024-05-02 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method therefor, and display device |
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Application publication date: 20200211 |