WO2023241481A1 - 显示屏盖板的制备方法、显示屏盖板和显示装置 - Google Patents

显示屏盖板的制备方法、显示屏盖板和显示装置 Download PDF

Info

Publication number
WO2023241481A1
WO2023241481A1 PCT/CN2023/099423 CN2023099423W WO2023241481A1 WO 2023241481 A1 WO2023241481 A1 WO 2023241481A1 CN 2023099423 W CN2023099423 W CN 2023099423W WO 2023241481 A1 WO2023241481 A1 WO 2023241481A1
Authority
WO
WIPO (PCT)
Prior art keywords
monomer
display screen
diamine monomer
polyimide
cover plate
Prior art date
Application number
PCT/CN2023/099423
Other languages
English (en)
French (fr)
Inventor
袁玮良
蔡宝鸣
张雄南
杜双
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Publication of WO2023241481A1 publication Critical patent/WO2023241481A1/zh

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1003Preparatory processes
    • C08G73/1007Preparatory processes from tetracarboxylic acids or derivatives and diamines
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1039Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors comprising halogen-containing substituents
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1042Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1067Wholly aromatic polyimides, i.e. having both tetracarboxylic and diamino moieties aromatically bound
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1085Polyimides with diamino moieties or tetracarboxylic segments containing heterocyclic moieties
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/33Indicating 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 being semiconductor devices, e.g. diodes
    • G09F9/335Indicating 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 being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2379/00Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
    • C08J2379/04Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08J2379/08Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/549Organic PV cells

Definitions

  • the present disclosure belongs to the field of display technology, and specifically relates to a method for preparing a display screen cover, a display screen cover and a display device.
  • Organic light-emitting diode (OLED) display has many advantages such as all-solid-state, high brightness, high contrast, high response, active light emission, and no viewing angle restrictions. It is gradually replacing liquid crystal display (LCD) as an important form of flat panel display. Flexible OLED displays are thin, impact-resistant, and bendable, and are currently an important development direction for OLED displays. Flexible displays have the characteristics of bendability, high definition, and high color gamut saturation. In practical applications, the substrate of the flexible screen also has the disadvantages of low hardness and poor resistance to external force damage. Therefore, a stable and reliable cover determines the Regarding the service life and comfort of flexible screens, existing flexible screen covers have low hardness, low impact resistance, and poor light transmittance, making it difficult to meet demand.
  • the purpose of the embodiments of the present disclosure is to provide a method for preparing a display screen cover, a display screen cover, and a display device.
  • an embodiment of the present disclosure provides a method for preparing a display screen cover, including:
  • the dianhydride monomer has a benzene ring structure and a fluorine-containing group connected to the benzene ring structure, the first diamine monomer has a pyridine structure, and the second diamine monomer has a benzene ring structure. .
  • the step of condensing the dianhydride monomer with the first diamine monomer and the second diamine monomer includes:
  • the dianhydride monomer, the first diamine monomer, and the second diamine monomer are subjected to a condensation reaction at 0-5°C for 15-35 hours.
  • the steps of reacting polyimide acid with dehydrating agent and catalyst include:
  • React polyimide acid, dehydrating agent, and catalyst at 20-40°C for 15-35 hours under a nitrogen atmosphere.
  • the steps of reacting polyimide acid with a dehydrating agent and a catalyst to obtain a polyimide polymer include:
  • the polyimide polymer solution is added to the methanol solution to precipitate the polyimide polymer.
  • the dianhydride monomer is hexafluorodianhydride
  • the first diamine monomer is 2-(4-aminophenyl)-5-aminopyridine
  • the second diamine monomer is 2 ,6-diaminotoluene.
  • the dehydrating agent is acetic anhydride
  • the catalyst is triethylamine
  • the molar amount of the dianhydride monomer and the molar amount of the diamine monomer are the same.
  • the molar ratio of the polyimide acid to the dehydrating agent and catalyst is (0.7-1.2): (3-5): (0.7-1.2).
  • an embodiment of the present disclosure provides a display screen cover, including:
  • Polyimide polymer the polyimide polymer has repeating units, the repeating units include:
  • the first diamine monomer has a pyridine structure
  • a second repeating unit at least one second repeating unit is connected to the first repeating unit, the second repeating unit is formed by condensation of the dianhydride monomer and a second diamine monomer, and the second diamine monomer is amine
  • the monomer has a benzene ring structure.
  • a plurality of the first repeating units form a first long chain
  • a plurality of the second repeating units form a second long chain
  • one end of the first long chain is connected to one end of the second long chain.
  • an embodiment of the present disclosure provides a display device, including:
  • the cover plate is arranged on the display side of the display screen.
  • the display device also includes:
  • the optical film layer is disposed between the cover plate and the display screen, the cover plate and the optical film layer are connected through a first optical adhesive layer, and the optical film layer is connected to the display screen.
  • the display screens are connected through a second optical adhesive layer;
  • a support layer is provided on a side of the display screen away from the cover plate, and the support layer and the display screen are connected through a third optical adhesive layer.
  • Figure 1 is a schematic diagram of the reaction device
  • Figure 2 is a schematic diagram of the reaction process
  • Figure 3a is a schematic diagram of the cover covering the text
  • Figure 3b is a scanning electron microscope image of the film surface
  • Figure 3c is a scanning electron microscope image of the film cross section
  • Figure 4 shows the thermal weight loss curve of the film
  • Figure 5 shows the infrared spectrum of the film
  • Figure 6 is a schematic diagram of the cooperation between the cover plate and the display screen
  • Figure 7 is a relationship diagram between the modulus of different cover plates and the tolerance of the pen-down height of the module
  • Figure 8 is another schematic diagram of the cooperation between the cover plate and the display screen
  • Figure 9 is another relationship diagram between the modulus of different cover plates and the tolerance of the pen-down height of the module
  • Figure 10 is another schematic diagram of the cooperation between the cover plate and the display screen.
  • Cover plate 10 first optical adhesive layer 11; second optical adhesive layer 12; third optical adhesive layer 13;
  • Optical film layer 60 Optical film layer 60.
  • the dianhydride monomer has a benzene ring structure and a fluorine-containing group connected to the benzene ring structure, and the fluorine-containing group can be -CF 3 , the first diamine monomer has a pyridine structure, and the third diamine monomer has a pyridine structure.
  • the didiamine monomer has a benzene ring structure.
  • the reaction between polyimide acid and polyimide polymer can be carried out in a three-necked jacketed bottle with N2 flowing.
  • the first diamine monomer and the second diamine monomer can be mixed first, and both need to be sublimated by vacuum before polymerization.
  • a certain amount of diamine monomer can be dissolved in N,N'-dimethyl Acetamide (DMAc), after the diamine monomer is completely dissolved, an equal molar amount of dianhydride monomer can be added for reaction; after the polyimide acid is reacted with a dehydrating agent and catalyst, the polyimide acid can be precipitated through a solution containing methanol solution. Imide polymer to obtain polyimide polymer;
  • the dianhydride monomer is subjected to a condensation reaction with the first diamine monomer and the second diamine monomer to obtain a polyimide acid.
  • the dianhydride monomer has a benzene ring structure and a fluorine-containing group connected to the benzene ring structure.
  • the dianhydride monomer can be hexafluorodianhydride (6FDA)
  • the first diamine monomer has a pyridine structure
  • the first diamine monomer can also have a benzene ring structure
  • the pyridine in the first diamine monomer The structure can be connected to the benzene ring structure.
  • the first diamine monomer can be 2-(4-aminophenyl)-5-aminopyridine (PD)
  • the second diamine monomer can have a benzene ring structure
  • the diamine monomer can have two amino groups on the benzene ring structure.
  • the second diamine monomer can be 2,6-diaminotoluene (2,6-DAT).
  • a catalyst can be acetic anhydride (Ac 2 O) and the catalyst can be triethylamine (TEA) to obtain a polyimide polymer.
  • the polyimide polymer can be dissolved in a solvent and the solvent can be selected N,N dimethylacetamide is used to obtain a polymer solution, which is coated on the substrate to form a film and peeled off to obtain a display cover.
  • the dianhydride monomer has a benzene ring structure and a fluorine-containing group connected to the benzene ring structure
  • the first diamine monomer has a pyridine structure
  • the second diamine monomer has a pyridine structure.
  • Diamine The monomer has a benzene ring structure.
  • the linear rod-like structure of phenylpyridine enhances the rigidity of the polymer molecular chain.
  • the diamine with pyridine structure and benzene ring structure can make the polyimide molecular chain tend to be ordered and tightly packed.
  • Hydrogen bonds are formed between polymer chains, which enhance intermolecular forces such as van der Waals forces and dispersion forces, stabilizing the conformation of molecular segments.
  • the introduction of the fluorine-containing alicyclic structure can reduce the charge transfer force within or between molecules of the structure, making it easy to prepare a transparent and colorless polyimide film cover with high light transmittance.
  • the increased rigidity of the polymer molecular chain improves the mechanical and thermal properties of the polyimide film.
  • the prepared cover has excellent hardness, high transparency, and high modulus.
  • the outer surface hardness of the cover can reach 6H, which can achieve excellent results at the same time. Its high modulus and good flexibility greatly improve the impact resistance of the cover, allowing the display to be better protected.
  • the cover plate cooperates with the display screen, the cover plate can prevent the transmission of impact energy during the entire impact process, and can absorb a large amount of energy during the interaction, thereby improving the impact resistance of the cover plate and effectively protecting the display screen.
  • the step of condensing the dianhydride monomer with the first diamine monomer and the second diamine monomer may include:
  • the dianhydride monomer, the first diamine monomer, and the second diamine monomer are subjected to a condensation reaction at 0-5°C for 15-35 hours.
  • the dianhydride monomer, the first diamine monomer, and the second diamine monomer are subjected to a condensation reaction at 0°C for 24 hours.
  • the step of reacting polyimide acid with dehydrating agent and catalyst may include:
  • React polyimide acid with dehydrating agent and catalyst at 20-40°C for 15-35 hours under nitrogen atmosphere For example, react polyimide acid with dehydrating agent and catalyst at 30°C for 24 hours under nitrogen atmosphere.
  • the steps of reacting polyimide acid with a dehydrating agent and a catalyst to obtain a polyimide polymer may include:
  • the polyimide acid is reacted with a dehydrating agent and a catalyst to obtain a polyimide polymer solution; the carboxyl group and the amine group in the polyimide acid can react to form a heterocyclic structure containing N atoms, thereby strengthening the polyimide polymer.
  • Mechanical strength of amine polymers
  • the polyimide polymer solution is added to the methanol solution to precipitate the polyimide polymer. Precipitating the polyimide polymer from a methanol solution can make the polyimide polymer more pure and facilitate the separation of the polyimide polymer.
  • the dianhydride monomer can be hexafluorodianhydride
  • the first diamine monomer can be 2-(4-aminophenyl)-5-aminopyridine
  • the second diamine monomer can be 2,6- Diaminotoluene.
  • the dehydrating agent can be acetic anhydride
  • the catalyst can be triethylamine
  • the molar amount of the dianhydride monomer and the molar amount of the diamine monomer can be reasonably selected according to the actual situation.
  • the molar amount of the dianhydride monomer and the molar amount of the diamine monomer can be the same.
  • the molar ratio of polyimide acid to dehydrating agent and catalyst can be (0.7-1.2): (3-5): (0.7-1.2).
  • the molar ratio of polyimide acid to dehydrating agent and catalyst can be 1:4:1.
  • the reaction device can be shown in Figure 1.
  • Figure 2 is the synthesis process of polyimide polymer.
  • the dianhydride monomer is hexafluorodianhydride (6FDA), and the first diamine monomer can be 2-(4-aminobenzene). base)-5-aminopyridine, the second diamine monomer can be 2,6-diaminotoluene, and the entire reaction is synthesized in a three-necked jacketed bottle with N2 flowing. Before polymerization, water impurities can be removed by vacuum sublimation. A certain amount of 2,6-DAT can be dissolved in N,N'-dimethylacetamide (DMAc).
  • DMAc N,N'-dimethylacetamide
  • an equal molar amount of 2,6-DAT can be added.
  • 6FDA react at 0°C for 24 hours to obtain a mixed solution with a solid content of 25.0wt.%, and prepare polyimide acid (PAA).
  • PAA polyimide acid
  • Ac 2 O dehydrating agent acetic anhydride
  • TEA catalyst triethylamine
  • the molar ratio of PAA:TEA:Ac 2 O can be 1:1:4.
  • the temperature is raised to 30°C under a nitrogen atmosphere and the reaction is continued for 24 hours. Then the reacted solution is precipitated in a methanol solution and dried to obtain polyimide.
  • the polyimide polymer can be added to N,N dimethylacetamide to form a solution with a solid content of 20wt%, and then coated on a glass substrate, and the solvent can be evaporated on a constant temperature heating platform at 60°C until it becomes After the film is removed, it is peeled off.
  • the peeled film is pumped to a negative pressure state in a vacuum drying oven and subjected to high-temperature desolvation treatment at 150°C to obtain a polyimide film, which is a cover plate.
  • the prepared polyimide film has a transparent and defect-free film structure with a smooth surface.
  • the film is placed on a paper with text, and the text ABC on the paper can be clearly seen through the film.
  • the SEM characterization of the film surface is shown in Figure 3b. It can be seen that the surface of the film is smooth, flat and has a dense structure without wrinkles.
  • the SEM characterization of the cross-section of the film is shown in Figure 3c. It can be seen that the polyimide film prepared by the solvent evaporation method has a dense structure without defects such as holes or needle holes, and the overall structure presents a regular, orderly and uniform structure. , the partial folds of the film cross-section are This is caused by manual truncation of the membrane after being frozen in liquid nitrogen, and is not present in the material itself.
  • the film exhibits partial weight loss between 150°C and 260°C, which is caused by some solvents not completely evaporating, and obvious weight loss begins to occur around 450°C.
  • the polyimide material begins to undergo carbonization and decomposition, it has good high temperature resistance.
  • the presence of a large number of characteristic peaks can be clearly seen in the infrared spectrum characterization results.
  • Figure 6 shows a schematic diagram of a module structure in which the cover 10 and the display screen 20 cooperate.
  • the thickness of the cover 10 is 80 ⁇ m
  • the thickness of the optical adhesive layer 30 is 50 ⁇ m
  • the thickness of the glass layer 40 is 30 ⁇ m.
  • different modules Measure the pen-dropping height resistance of the cover. When the cover plate modulus is 4.2Gpa, the pen-dropping height resistance is 5cm. When the cover plate modulus is 6.1Gpa, the pen-dropping height resistance is 14cm.
  • the designed polyimide film modulus is Above 7Gpa, the module's tolerance to pen drop height can be further improved.
  • Figure 7 shows the relationship between different cover moduli of the module structure and the module's tolerance to pen drop height.
  • FIG 8 is a schematic diagram of a module structure in which the cover 10 and the display screen 20 cooperate.
  • the thickness of the cover 10 is 80 ⁇ m
  • the thickness of the optical adhesive layer 30 is 50 ⁇ m
  • the thickness of the glass layer 40 is 70 ⁇ m.
  • different modules Measure the pen-dropping height resistance of the cover. When the cover plate modulus is 4.2Gpa, the pen-dropping height resistance is 12cm. When the cover plate modulus is 6.1Gpa, the pen-dropping height resistance is 32cm.
  • the designed polyimide film modulus is Above 7Gpa, the module's tolerance to pen drop height can be further improved.
  • Figure 9 shows the relationship between different cover moduli of the module structure and the module's tolerance to pen drop height.
  • An embodiment of the present disclosure provides a display screen cover, including:
  • Polyimide polymer the polyimide polymer has repeating units, the repeating units include:
  • a first repeating unit formed by the condensation of a dianhydride monomer and a first diamine monomer
  • the dianhydride monomer has a benzene ring structure and a fluorine-containing group connected to the benzene ring structure
  • the first diamine monomer has a pyridine structure
  • a second repeating unit at least one second repeating unit is connected to the first repeating unit, the second repeating unit is formed by condensation of the dianhydride monomer and a second diamine monomer, and the second diamine monomer is The amine monomer has a benzene ring structure.
  • the first repeating unit is formed by the condensation of a dianhydride monomer and a first diamine monomer.
  • the dianhydride monomer has a benzene ring structure and a fluorine-containing molecule connected to the benzene ring structure. group, the fluorine-containing group can be -CF 3
  • the first diamine monomer has a pyridine structure
  • the second repeating unit is composed of a dianhydride monomer and a second diamine It is formed by condensation of monomers
  • the second diamine monomer has a benzene ring structure.
  • the diamine with pyridine structure and benzene ring structure can make the polyimide molecular chains tend to be ordered and closely packed. Hydrogen bonds are formed between polymer chains, which enhances intermolecular forces such as van der Waals force and dispersion force, making The molecular segment conformation is stable, and the introduction of the fluorine-containing alicyclic structure can reduce the charge transfer force within or between molecules of the structure, making it easy to prepare a transparent and colorless polyimide film cover.
  • the increased rigidity of the polymer molecular chain improves the mechanical and thermal properties of the polyimide film.
  • the prepared cover has excellent hardness, high transparency, and high modulus, which greatly improves the impact resistance of the cover and makes the display screen more susceptible to damage. Good protection.
  • a plurality of first repeating units form a first long chain
  • a plurality of second repeating units form a second long chain
  • one end of the first long chain is connected to one end of the second long chain, so that the polyimide
  • the orderly arrangement and close packing of molecular chains stabilize the conformation of molecular segments.
  • the display device may include:
  • the display screen 20 and the cover plate 10 are arranged on the display side of the display screen 20.
  • the display screen 20 can be a flexible display screen.
  • the cover plate 10 can effectively protect the display screen 20 and has good light transmittance.
  • the cover plate 10 can be bonded to the display side of the display screen 20 through the optical adhesive layer 30.
  • a glass layer 40 can be provided between the optical adhesive layer 30 and the display screen 20.
  • the cover plate 10 can protect the display screen 20 and make it transparent. Good light quality.
  • the display device may further include: an optical film layer 60 and The support layer 50 and the optical film layer 60 are disposed between the cover plate 10 and the display screen 20 .
  • the cover plate 10 and the optical film layer 60 are connected through the first optical adhesive layer 11 .
  • the optical film layer 60 and the display screen 20 are connected through The second optical glue layer 12 is connected, and the optical film layer 60 can be a polarizing film.
  • the support layer 50 is disposed on the side of the display screen 20 away from the cover 10 .
  • the support layer 50 and the display screen 20 are connected through the third optical adhesive layer 13 , and the support layer 50 can have a supporting function.
  • the display screen 20 may include, but is not limited to, an OLED display screen, an LCD display screen, an LED display screen, a PDP display screen or a Mini LED display screen.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

公开了一种显示屏盖板的制备方法、显示屏盖板和显示装置,制备方法包括:将二酐单体与第一二胺单体、第二二胺单体进行缩合反应,得到聚酰亚胺酸;将聚酰亚胺酸与脱水剂、催化剂进行反应,得到聚酰亚胺聚合物;将聚酰亚胺聚合物通过溶剂溶解,得到聚合物溶液;将聚合物溶液涂覆在基板上成膜,剥离得到显示屏盖板;所述二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,所述第一二胺单体中具有吡啶结构,所述第二二胺单体中具有苯环结构。本公开实施例的制备方法制备的盖板具有优异的硬度、高透明、高模量,大大提高盖板的抗冲击性能。

Description

显示屏盖板的制备方法、显示屏盖板和显示装置
相关申请的交叉引用
本公开是主张在2022年6月14日在中国提交的中国专利申请No.202210673478.5的优先权,其全部内容通过引用包含于此。
技术领域
本公开属于显示技术领域,具体涉及一种显示屏盖板的制备方法、显示屏盖板和显示装置。
背景技术
有机发光二极管(OLED)显示具有全固态、高亮度、高对比度、高响应、主动发光和无视角限制等诸多优点,正在逐渐取代液晶显示(LCD)成为平板显示的重要形式。柔性OLED显示具有轻薄、耐冲击、可弯曲等特征,是目前OLED显示的重要发展方向。柔性显示具有可弯折、高清晰度、高色域饱和度的特点,实际应用中,柔性屏的基板同时也存在着硬度低,耐外力破坏性差的缺点,因此,稳定可靠的盖板决定了柔性屏使用的寿命与舒适度,现有的柔性屏盖板的硬度、抗冲击性能低,透光性不好,难以满足需求。
发明内容
本公开实施例的目的是提供一种显示屏盖板的制备方法、显示屏盖板和显示装置。
第一方面,本公开实施例提供了一种显示屏盖板的制备方法,包括:
将二酐单体与第一二胺单体、第二二胺单体进行缩合反应,得到聚酰亚胺酸;
将聚酰亚胺酸与脱水剂、催化剂进行反应,得到聚酰亚胺聚合物;
将聚酰亚胺聚合物通过溶剂溶解,得到聚合物溶液;
将聚合物溶液涂覆在基板上成膜,剥离得到显示屏盖板;
所述二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,所述第一二胺单体中具有吡啶结构,所述第二二胺单体中具有苯环结构。
可选地,将二酐单体与第一二胺单体、第二二胺单体进行缩合反应的步骤包括:
将二酐单体与第一二胺单体、第二二胺单体在0-5℃下进行缩合反应15-35h。
可选地,将聚酰亚胺酸与脱水剂、催化剂进行反应的步骤包括:
将聚酰亚胺酸与脱水剂、催化剂在氮气氛围下于20-40℃反应15-35h。
可选地,将聚酰亚胺酸与脱水剂、催化剂进行反应,得到聚酰亚胺聚合物的步骤包括:
将聚酰亚胺酸与脱水剂、催化剂进行反应得到聚酰亚胺聚合物的溶液;
将聚酰亚胺聚合物的溶液加入甲醇溶液中析出聚酰亚胺聚合物。
可选地,所述二酐单体为六氟二酐,所述第一二胺单体为2-(4-氨基苯基)-5-氨基吡啶,所述第二二胺单体为2,6-二氨基甲苯。
可选地,所述脱水剂为乙酸酐,所述催化剂为三乙胺。
可选地,所述二酐单体的摩尔量和所述二胺单体的摩尔量相同。
可选地,所述聚酰亚胺酸与脱水剂、催化剂的摩尔比为(0.7-1.2):(3-5):(0.7-1.2)。
第二方面,本公开实施例提供了一种显示屏盖板,包括:
聚酰亚胺聚合物,所述聚酰亚胺聚合物中具有重复单元,所述重复单元包括:
第一重复单元,所述第一重复单元由二酐单体与第一二胺单体缩合形成,所述二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,所述第一二胺单体中具有吡啶结构;
第二重复单元,至少一个所述第二重复单元与所述第一重复单元连接,所述第二重复单元由所述二酐单体与第二二胺单体缩合形成,所述第二二胺 单体中具有苯环结构。
可选地,多个所述第一重复单元形成第一长链,多个所述第二重复单元形成第二长链,所述第一长链的一端与所述第二长链的一端连接。
第三方面,本公开实施例提供了一种显示装置,包括:
上述实施例中所述的盖板;
显示屏,所述盖板设置于所述显示屏的显示侧。
可选地,显示装置还包括:
光学膜层,所述光学膜层设置于所述盖板与所述显示屏之间,所述盖板与所述光学膜层之间通过第一光学胶层连接,所述光学膜层与所述显示屏之间通过第二光学胶层连接;
支撑层,所述支撑层设置于所述显示屏远离所述盖板的一侧,所述支撑层与所述显示屏之间通过第三光学胶层连接。
附图说明
图1为反应装置的一个示意图;
图2为反应过程的一个示意图;
图3a为盖板覆盖在文字上的一个示意图;
图3b为薄膜表面的扫描电镜图;
图3c为薄膜截面的扫描电镜图;
图4为薄膜的热失重曲线;
图5为薄膜的红外光谱图;
图6为盖板与显示屏配合的一个示意图;
图7为不同盖板模量与模组耐受落笔高度的一个关系图;
图8为盖板与显示屏配合的另一个示意图;
图9为不同盖板模量与模组耐受落笔高度的另一个关系图;
图10为盖板与显示屏配合的又一个示意图。
附图标记
盖板10;第一光学胶层11;第二光学胶层12;第三光学胶层13;
显示屏20;
光学胶层30;
玻璃层40;
支撑层50;
光学膜层60。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
本公开的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便本公开的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”,一般表示前后关联对象是一种“或”的关系。
下面结合附图1至图10所示,通过具体的实施例及其应用场景对本公开实施例提供的显示屏盖板的制备方法进行详细地说明。
本公开实施例的显示屏盖板的制备方法,包括:
将二酐单体与第一二胺单体、第二二胺单体进行缩合反应,得到聚酰亚胺酸;
将聚酰亚胺酸与脱水剂、催化剂进行反应,得到聚酰亚胺聚合物;
将聚酰亚胺聚合物通过溶剂溶解,得到聚合物溶液;
将聚合物溶液涂覆在基板上成膜,剥离得到显示屏盖板;
所述二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,含氟基团可以为-CF3,所述第一二胺单体中具有吡啶结构,所述第二二胺单体中具有苯环结构。
在制备过程中,制备聚酰亚胺酸与聚酰亚胺聚合物的反应可以在通有N2的三口夹套瓶中合成反应。在反应前可以先将第一二胺单体、第二二胺单体混合,在聚合前均需通过真空升华,可以先将一定量的二胺单体溶于N,N’-二甲基乙酰胺(DMAc),待二胺单体完全溶解后可以加入等摩尔量的二酐单体进行反应;将聚酰亚胺酸与脱水剂、催化剂进行反应后可以通过含有甲醇溶液的溶液析出聚酰亚胺聚合物,得到聚酰亚胺聚合物;
将聚酰亚胺聚合物加入N,N二甲基乙酰胺中配置成固含量为15-30wt%的溶液,比如固含量为20wt%,再涂布在玻璃基板上,在60℃恒温加热平台上蒸发溶剂,待其成膜后,将其剥离,剥离后的膜在真空干燥箱中抽至负压状态,在140-160℃条件下(比如150℃)进行高温脱溶剂处理得到聚酰亚胺聚合物薄膜,也即可以得到显示屏盖板。
将二酐单体与第一二胺单体、第二二胺单体进行缩合反应得到聚酰亚胺酸,二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,比如二酐单体可以为六氟二酐(6FDA),第一二胺单体中具有吡啶结构,第一二胺单体中还可以具有苯环结构,第一二胺单体中的吡啶结构与苯环结构可以连接,比如第一二胺单体可以为2-(4-氨基苯基)-5-氨基吡啶(PD),第二二胺单体中可以具有苯环结构,第二二胺单体中可以在苯环结构上带有两个氨基,比如第二二胺单体可以为2,6-二氨基甲苯(2,6-DAT),将聚酰亚胺酸与脱水剂、催化剂进行反应,比如,脱水剂可以为乙酸酐(Ac2O),催化剂可以为三乙胺(TEA),得到聚酰亚胺聚合物,将聚酰亚胺聚合物通过溶剂溶解溶剂可以选择N,N二甲基乙酰胺,得到聚合物溶液,将聚合物溶液涂覆在基板上成膜,剥离得到显示屏盖板。
在本公开实施例的显示屏盖板的制备方法中,二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,第一二胺单体中具有吡啶结构,第二二胺 单体中具有苯环结构,苯基吡啶的线性棒状结构增强了聚合物分子链刚性,具有吡啶结构与苯环结构的二胺可以使聚酰亚胺分子链倾向于有序排列和紧密堆积,高分子链之间形成氢键,增强了范德华力及色散力等分子间作用力,使分子链段构象稳定。含氟脂环族结构的引入可以减少结构分子内或分子间的电荷转移作用力,易于制备透明无色的聚酰亚胺薄膜盖板,透光率高。聚合物分子链刚性增强,使得聚酰亚胺薄膜力学性能与热学性能提高,制备的盖板具有优异的硬度、高透明、高模量,盖板的外表面硬度可以达到6H,可以同时达到优异的高模量以及较好的柔韧性,大大提高盖板的抗冲击性能,使显示屏受到更好的保护。盖板与显示屏配合时,在整个冲击过程中,盖板可以阻止冲击能量的传递,并且相互作用过程中,可以吸收大量能量,从而提高盖板的抗冲击性能,有效保护显示屏。
在一些实施例中,将二酐单体与第一二胺单体、第二二胺单体进行缩合反应的步骤可以包括:
将二酐单体与第一二胺单体、第二二胺单体在0-5℃下进行缩合反应15-35h。比如,将二酐单体与第一二胺单体、第二二胺单体在0℃下进行缩合反应24h。
可选地,将聚酰亚胺酸与脱水剂、催化剂进行反应的步骤可以包括:
将聚酰亚胺酸与脱水剂、催化剂在氮气氛围下于20-40℃反应15-35h,比如将聚酰亚胺酸与脱水剂、催化剂在氮气氛围下于30℃反应24h。
可选地,将聚酰亚胺酸与脱水剂、催化剂进行反应,得到聚酰亚胺聚合物的步骤可以包括:
将聚酰亚胺酸与脱水剂、催化剂进行反应得到聚酰亚胺聚合物的溶液;可以使得聚酰亚胺酸中的羧基与胺基反应形成含有N原子的杂环结构,增强聚酰亚胺聚合物的机械强度;
将聚酰亚胺聚合物的溶液加入甲醇溶液中析出聚酰亚胺聚合物。通过甲醇溶液析出聚酰亚胺聚合物可以使得聚酰亚胺聚合物的纯度更高,易于聚酰亚胺聚合物的分离。
可选地,二酐单体可以为六氟二酐,第一二胺单体可以为2-(4-氨基苯基)-5-氨基吡啶,第二二胺单体可以为2,6-二氨基甲苯。
可选地,脱水剂可以为乙酸酐,催化剂可以为三乙胺。
二酐单体的摩尔量和二胺单体的摩尔量可以根据实际情况合理选择,比如二酐单体的摩尔量和二胺单体的摩尔量可以相同。
聚酰亚胺酸与脱水剂、催化剂的摩尔比可以为(0.7-1.2):(3-5):(0.7-1.2),比如,聚酰亚胺酸与脱水剂、催化剂的摩尔比可以为1:4:1。
在具体制备过程中,可以包括以下步骤:
反应装置可以如图1所示,图2是聚酰亚胺聚合物的合成过程,二酐单体为六氟二酐(6FDA),第一二胺单体可以为2-(4-氨基苯基)-5-氨基吡啶,第二二胺单体可以为2,6-二氨基甲苯,整个反应在通有N2的三口夹套瓶中合成。在聚合前可以通过真空升华,可以去除水分杂质,将一定量的2,6-DAT溶于N,N’-二甲基乙酰胺(DMAc),待二胺完全溶解后可以加入等摩尔量的6FDA,在0℃下反应24h,得到固含量25.0wt.%的混合溶液,制得聚酰亚胺酸(PAA)。之后加入脱水剂乙酸酐(Ac2O)和催化剂三乙胺(TEA),PAA:TEA:Ac2O的摩尔比可以为1:1:4,在氮气氛围下升温至30℃继续反应24h,然后反应后的溶液在甲醇溶液中析出,烘干得到聚酰亚胺。可以将该聚酰亚胺聚合物加入N,N二甲基乙酰胺中配置成固含量为20wt%的溶液,再涂布在玻璃基板上,在60℃恒温加热平台上蒸发溶剂,待其成膜后,将其剥离,剥离后的膜在真空干燥箱中抽至负压状态,在150℃条件下进行高温脱溶剂处理得到聚酰亚胺薄膜,也即是盖板。
从图3a可以看出,制备出的聚酰亚胺薄膜是透明且表面光滑无缺陷的薄膜结构,将膜放置在具有文字的纸张上,通过薄膜可以清晰的看到纸张上的文字ABC。对薄膜表面的SEM表征如图3b所示,可以看到膜的表面光滑平整、致密结构,没有发生褶皱现象。对薄膜截面的SEM表征如图3c所示,可以看出通过溶剂挥发法制备出的聚酰亚胺薄膜具有致密结构,不存在孔洞或针状孔等缺陷,整体呈现出规整有序均一的结构,薄膜截面的部分褶皱是 由于膜在液氮中冷冻后,经过手动截断导致的,并非材料自身所存在的。
如图4所示,通过表征结果可以看出,薄膜在150℃-260℃之间出现了部分失重现象,有部分溶剂未挥发完全所致,而在450℃左右开始出现明显的失重现象,此时聚酰亚胺材料开始发生碳化分解,耐高温性能好。如图5所示,红外光谱表征结果中可以明显的看出大量的特征峰的存在,在1789cm-1处是酰亚胺基团中的C=O不对称拉伸振动峰,在1728cm-1处是酰亚胺基团中C=O对称拉伸振动峰,在1362cm-1处是酰亚胺基团上C-N拉伸振动峰,在1537cm-1处是N-H的弯曲振动峰,在721cm-1处是酰亚胺环的伸缩振动峰,1476cm-1处是芳香环上的C-H键的峰,在1240cm-1处还可以看到-CF3的拉伸振动峰,通过红外光谱的表征结果分析可以看出聚酰亚胺材料特征峰都存在。
如图6所示是盖板10与显示屏20配合的一个模组结构示意图,盖板10的厚度是80μm,光学胶层30的厚度是50μm,玻璃层40的厚度是30μm,实验测试不同模量盖板的耐受落笔高度,当盖板模量是4.2Gpa时耐受落笔高度是5cm,盖板模量是6.1Gpa时耐受落笔高度是14cm,设计的聚酰亚胺薄膜模量在7Gpa以上,模组耐受落笔高度可以进一步提升,如图7所示是模组结构的不同盖板模量与模组耐受落笔高度的关系图。如图8所示是盖板10与显示屏20配合的一个模组结构示意图,盖板10的厚度是80μm,光学胶层30的厚度是50μm,玻璃层40的厚度是70μm,实验测试不同模量盖板的耐受落笔高度,当盖板模量是4.2Gpa时耐受落笔高度是12cm,盖板模量是6.1Gpa时耐受落笔高度是32cm,设计的聚酰亚胺薄膜模量在7Gpa以上,模组耐受落笔高度可以进一步提升,如图9所示是模组结构的不同盖板模量与模组耐受落笔高度的关系图。
本公开实施例提供一种显示屏盖板,包括:
聚酰亚胺聚合物,所述聚酰亚胺聚合物中具有重复单元,所述重复单元包括:
第一重复单元,所述第一重复单元由二酐单体与第一二胺单体缩合形成, 所述二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,所述第一二胺单体中具有吡啶结构;
第二重复单元,至少一个所述第二重复单元与所述第一重复单元连接,所述第二重复单元由所述二酐单体与第二二胺单体缩合形成,所述第二二胺单体中具有苯环结构。
在盖板中具有聚酰亚胺聚合物,第一重复单元由二酐单体与第一二胺单体缩合形成,二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,含氟基团可以为-CF3,第一二胺单体中具有吡啶结构,与第一重复单元连接的第二重复单元,第二重复单元由二酐单体与第二二胺单体缩合形成,第二二胺单体中具有苯环结构。具有吡啶结构与苯环结构的二胺可以使聚酰亚胺分子链倾向于有序排列和紧密堆积,高分子链之间形成氢键,增强了范德华力及色散力等分子间作用力,使分子链段构象稳定,含氟脂环族结构的引入可以减少结构分子内或分子间的电荷转移作用力,易于制备透明无色的聚酰亚胺薄膜盖板。聚合物分子链刚性增强,使得聚酰亚胺薄膜力学性能与热学性能提高,制备的盖板具有优异的硬度、高透明、高模量,大大提高盖板的抗冲击性能,使显示屏受到更好的保护。
在一些实施例中,多个第一重复单元形成第一长链,多个第二重复单元形成第二长链,第一长链的一端与第二长链的一端连接,使聚酰亚胺分子链有序排列和紧密堆积,使分子链段构象稳定。
本公开实施例提供一种显示装置,如图6和图8所示,显示装置可以包括:
上述实施例中所述的盖板10;
显示屏20,盖板10设置于显示屏20的显示侧,显示屏20可以为柔性显示屏,通过盖板10可以有效保护显示屏20,透光性好。可选地,盖板10可以通过光学胶层30粘接在显示屏20的显示侧,光学胶层30与显示屏20之间可以设置玻璃层40,通过盖板10可以保护显示屏20,透光性好。
在一些实施例中,如图10所示,显示装置还可以包括:光学膜层60与 支撑层50,光学膜层60设置于盖板10与显示屏20之间,盖板10与光学膜层60之间通过第一光学胶层11连接,光学膜层60与显示屏20之间通过第二光学胶层12连接,光学膜层60可以为偏光膜。支撑层50设置于显示屏20远离盖板10的一侧,支撑层50与显示屏20之间通过第三光学胶层13连接,通过支撑层50可以具有支撑作用。
显示屏20可以包括但不限于OLED显示屏、LCD显示屏、LED显示屏、PDP显示屏或Mini LED显示屏。
上面结合附图对本公开的实施例进行了描述,但是本公开并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本公开的启示下,在不脱离本公开宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。

Claims (12)

  1. 一种显示屏盖板的制备方法,包括:
    将二酐单体与第一二胺单体、第二二胺单体进行缩合反应,得到聚酰亚胺酸;
    将聚酰亚胺酸与脱水剂、催化剂进行反应,得到聚酰亚胺聚合物;
    将聚酰亚胺聚合物通过溶剂溶解,得到聚合物溶液;
    将聚合物溶液涂覆在基板上成膜,剥离得到显示屏盖板;
    所述二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,所述第一二胺单体中具有吡啶结构,所述第二二胺单体中具有苯环结构。
  2. 根据权利要求1所述的制备方法,其中,将二酐单体与第一二胺单体、第二二胺单体进行缩合反应的步骤包括:
    将二酐单体与第一二胺单体、第二二胺单体在0-5℃下进行缩合反应15-35h。
  3. 根据权利要求1所述的制备方法,其中,将聚酰亚胺酸与脱水剂、催化剂进行反应的步骤包括:
    将聚酰亚胺酸与脱水剂、催化剂在氮气氛围下于20-40℃反应15-35h。
  4. 根据权利要求1所述的制备方法,其中,将聚酰亚胺酸与脱水剂、催化剂进行反应,得到聚酰亚胺聚合物的步骤包括:
    将聚酰亚胺酸与脱水剂、催化剂进行反应得到聚酰亚胺聚合物的溶液;
    将聚酰亚胺聚合物的溶液加入甲醇溶液中析出聚酰亚胺聚合物。
  5. 根据权利要求1所述的制备方法,其中,所述二酐单体为六氟二酐,所述第一二胺单体为2-(4-氨基苯基)-5-氨基吡啶,所述第二二胺单体为2,6-二氨基甲苯。
  6. 根据权利要求1所述的制备方法,其中,所述脱水剂为乙酸酐,所述催化剂为三乙胺。
  7. 根据权利要求1所述的制备方法,其中,所述二酐单体的摩尔量和所 述二胺单体的摩尔量相同。
  8. 根据权利要求1所述的制备方法,其中,所述聚酰亚胺酸与脱水剂、催化剂的摩尔比为(0.7-1.2):(3-5):(0.7-1.2)。
  9. 一种显示屏盖板,包括:
    聚酰亚胺聚合物,所述聚酰亚胺聚合物中具有重复单元,所述重复单元包括:
    第一重复单元,所述第一重复单元由二酐单体与第一二胺单体缩合形成,所述二酐单体中具有苯环结构和连接在苯环结构上的含氟基团,所述第一二胺单体中具有吡啶结构;
    第二重复单元,至少一个所述第二重复单元与所述第一重复单元连接,所述第二重复单元由所述二酐单体与第二二胺单体缩合形成,所述第二二胺单体中具有苯环结构。
  10. 根据权利要求9所述的盖板,其中,多个所述第一重复单元形成第一长链,多个所述第二重复单元形成第二长链,所述第一长链的一端与所述第二长链的一端连接。
  11. 一种显示装置,包括:
    权利要求9-10中任一项所述的盖板;
    显示屏,所述盖板设置于所述显示屏的显示侧。
  12. 根据权利要求11所述的显示装置,其中,还包括:
    光学膜层,所述光学膜层设置于所述盖板与所述显示屏之间,所述盖板与所述光学膜层之间通过第一光学胶层连接,所述光学膜层与所述显示屏之间通过第二光学胶层连接;
    支撑层,所述支撑层设置于所述显示屏远离所述盖板的一侧,所述支撑层与所述显示屏之间通过第三光学胶层连接。
PCT/CN2023/099423 2022-06-14 2023-06-09 显示屏盖板的制备方法、显示屏盖板和显示装置 WO2023241481A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210673478.5 2022-06-14
CN202210673478.5A CN114957661A (zh) 2022-06-14 2022-06-14 显示屏盖板的制备方法、显示屏盖板和显示装置

Publications (1)

Publication Number Publication Date
WO2023241481A1 true WO2023241481A1 (zh) 2023-12-21

Family

ID=82964092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/099423 WO2023241481A1 (zh) 2022-06-14 2023-06-09 显示屏盖板的制备方法、显示屏盖板和显示装置

Country Status (2)

Country Link
CN (1) CN114957661A (zh)
WO (1) WO2023241481A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114957661A (zh) * 2022-06-14 2022-08-30 京东方科技集团股份有限公司 显示屏盖板的制备方法、显示屏盖板和显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015129553A1 (ja) * 2014-02-26 2015-09-03 富士フイルム株式会社 ガス分離膜、ガス分離モジュール、ガス分離装置、及びガス分離方法
CN105061302A (zh) * 2015-08-27 2015-11-18 哈尔滨工程大学 含吡啶环二胺和由其制备的聚酰亚胺及制备方法
CN108472933A (zh) * 2016-01-29 2018-08-31 沙特基础工业全球技术有限公司 用于电子设备的盖板组件、其制造方法、及包括盖板组件的设备
CN108822295A (zh) * 2018-06-05 2018-11-16 中国科学院长春应用化学研究所 一种柔性显示基板材料及其制备方法
CN110003470A (zh) * 2019-04-29 2019-07-12 中国科学院长春应用化学研究所 一种应用于柔性显示基板的聚酰亚胺材料及其制备方法
CN112646182A (zh) * 2020-12-21 2021-04-13 奥克控股集团股份公司 含吡啶环结构的无色透明聚酰亚胺膜材料及其制备方法
CN114957661A (zh) * 2022-06-14 2022-08-30 京东方科技集团股份有限公司 显示屏盖板的制备方法、显示屏盖板和显示装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944824A (en) * 1988-09-23 1990-07-31 E. I. Du Pont De Nemours And Company Process for preparation of tooling of carbon fiber reinforced polyimide for composites manufacture
EP0629893B1 (en) * 1989-09-01 1998-01-28 Canon Kabushiki Kaisha Liquid crystal device
CN101343362B (zh) * 2008-09-03 2011-11-16 中国科学院化学研究所 一种聚酰亚胺树脂及其中间体与它们的制备方法与应用
CN103702976B (zh) * 2011-05-18 2016-04-20 株式会社东进世美肯 胺化合物及其制备方法、液晶配向剂、液晶配向膜、液晶显示元件
KR20150077177A (ko) * 2013-12-27 2015-07-07 주식회사 두산 폴리아믹산 용액, 및 이를 이용한 투명 폴리이미드 수지 필름 및 투명 기판
KR20150138022A (ko) * 2014-05-29 2015-12-09 주식회사 동진쎄미켐 액정 배향제용 디아민 화합물, 액정 배향제, 액정 배향막 및 액정표시소자
CN109134858B (zh) * 2018-07-27 2020-09-15 深圳瑞华泰薄膜科技股份有限公司 一种透明聚酰亚胺薄膜及其制备方法
CN210534740U (zh) * 2019-08-22 2020-05-15 信利光电股份有限公司 一种黑色触摸屏和触摸显示模组
CN210402983U (zh) * 2019-09-10 2020-04-24 新辉开科技(深圳)有限公司 一种显示屏幕及电子设备
CN113583443B (zh) * 2021-08-04 2022-11-22 深圳瑞华泰薄膜科技股份有限公司 一种应用于柔性光电领域的透明聚酰亚胺及其制备方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015129553A1 (ja) * 2014-02-26 2015-09-03 富士フイルム株式会社 ガス分離膜、ガス分離モジュール、ガス分離装置、及びガス分離方法
CN105061302A (zh) * 2015-08-27 2015-11-18 哈尔滨工程大学 含吡啶环二胺和由其制备的聚酰亚胺及制备方法
CN108472933A (zh) * 2016-01-29 2018-08-31 沙特基础工业全球技术有限公司 用于电子设备的盖板组件、其制造方法、及包括盖板组件的设备
CN108822295A (zh) * 2018-06-05 2018-11-16 中国科学院长春应用化学研究所 一种柔性显示基板材料及其制备方法
CN110003470A (zh) * 2019-04-29 2019-07-12 中国科学院长春应用化学研究所 一种应用于柔性显示基板的聚酰亚胺材料及其制备方法
CN112646182A (zh) * 2020-12-21 2021-04-13 奥克控股集团股份公司 含吡啶环结构的无色透明聚酰亚胺膜材料及其制备方法
CN114957661A (zh) * 2022-06-14 2022-08-30 京东方科技集团股份有限公司 显示屏盖板的制备方法、显示屏盖板和显示装置

Also Published As

Publication number Publication date
CN114957661A (zh) 2022-08-30

Similar Documents

Publication Publication Date Title
KR102327147B1 (ko) 표시장치용 윈도우 및 이를 포함하는 표시 장치
US7550194B2 (en) Low color polyimide compositions useful in optical type applications and methods and compositions relating thereto
US20230074583A1 (en) Low-color polymers for use in electronic devices
CN107250277B (zh) 剥离层形成用组合物
TWI382251B (zh) A liquid crystal aligner and a liquid crystal cell using the same
TWI301552B (zh)
WO2023241481A1 (zh) 显示屏盖板的制备方法、显示屏盖板和显示装置
WO2013121917A1 (ja) ジアミン、ポリイミド、ならびに、ポリイミドフィルムおよびその利用
US20090226642A1 (en) Low color polyimide compositions useful in optical type applications and methods and compositions relating thereto
CN112194792A (zh) 一种高强度低热膨胀透明聚酰亚胺及其制备方法
WO2020004236A1 (ja) ポリイミド樹脂およびその製造方法、ならびにポリイミドフィルムおよびその製造方法
CN112194790A (zh) 一种低热膨胀透明聚酰亚胺薄膜及其制备方法
KR20170133395A (ko) 박리층 형성용 조성물 및 박리층
CN112500567B (zh) 含酰胺结构的高模量透明聚酰亚胺膜材料及其制备方法
CN112375010B (zh) 一种新型二胺、聚酰亚胺及聚酰亚胺薄膜
WO2023098424A1 (zh) 聚酰亚胺树脂、聚酰亚胺薄膜及制备方法、柔性设备
CN109563341B (zh) 用于透明树脂基板的剥离层形成用组合物
TWI719965B (zh) 積層體
JP5325491B2 (ja) 新規な塗布型光学補償フィルムおよびその製造方法
TW202138431A (zh) 剝離層形成用組成物
TW201835158A (zh) 剝離層形成用組成物
WO2017212952A1 (ja) 異なる二種類の構造単位を有する芳香族ポリケトン
CN112079743A (zh) 一种二胺、聚酰亚胺及聚酰亚胺薄膜
TWI757319B (zh) 剝離層形成用組成物
WO2020219411A1 (en) Polymers for use in electronic devices

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23823049

Country of ref document: EP

Kind code of ref document: A1