CN113366556A - Flexible cover plate, flexible display screen and display panel - Google Patents
Flexible cover plate, flexible display screen and display panel Download PDFInfo
- Publication number
- CN113366556A CN113366556A CN201980090086.2A CN201980090086A CN113366556A CN 113366556 A CN113366556 A CN 113366556A CN 201980090086 A CN201980090086 A CN 201980090086A CN 113366556 A CN113366556 A CN 113366556A
- Authority
- CN
- China
- Prior art keywords
- layer
- flexible cover
- flexible
- cover plate
- cover sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims abstract description 90
- 239000000758 substrate Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 31
- 239000010410 layer Substances 0.000 claims description 190
- 239000012790 adhesive layer Substances 0.000 claims description 37
- 239000011241 protective layer Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 13
- 230000009467 reduction Effects 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 230000003666 anti-fingerprint Effects 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims 2
- 238000005452 bending Methods 0.000 abstract description 23
- 239000002585 base Substances 0.000 description 13
- 239000010408 film Substances 0.000 description 11
- 229910000323 aluminium silicate Inorganic materials 0.000 description 8
- 230000000181 anti-adherent effect Effects 0.000 description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 7
- 239000004642 Polyimide Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000006060 molten glass Substances 0.000 description 5
- 229920001721 polyimide Polymers 0.000 description 5
- 230000035882 stress Effects 0.000 description 5
- 229920006223 adhesive resin Polymers 0.000 description 4
- 229910021389 graphene Inorganic materials 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical class C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000005354 aluminosilicate glass Substances 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000005385 borate glass Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000012257 stirred material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
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
-
- 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
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/871—Self-supporting sealing arrangements
-
- 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
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
Abstract
The embodiment of the application discloses a flexible cover plate, a flexible display screen and a display panel, wherein the flexible cover plate (100) is applied to the flexible display screen and comprises an ultrathin glass layer (20) and a base material (40), the ultrathin glass layer (20) is used for being attached to the flexible display screen, and the ultrathin glass layer (20) has bendability; a substrate (40) is formed on the ultra-thin glass layer (20), the substrate being for increasing the stiffness of the flexible cover sheet. Due to the ultrathin characteristic of the ultrathin glass layer (20), the flexible cover plate has good bending characteristic, meanwhile, the base material (40) does not influence the bending characteristic of the flexible cover plate, and simultaneously, the hardness of the flexible cover plate is improved, so that the flexible cover plate formed by the ultrathin glass layer (20) and the base material (40) has good bending characteristic, and simultaneously has the characteristics of hardness, falling resistance and the like.
Description
The embodiment of the application relates to the technical field of display, in particular to a flexible cover plate, a flexible display screen and a display panel.
With the progress of science and technology and the development of society, the flexible display screen gradually comes into the visual field of consumers, and the flexible display screen brings brand-new user experience to the consumers while bringing convenience to the life of the consumers.
However, it is difficult for the currently developed cover plate of the flexible display to have the hardness and the drop-resistant property of the conventional hard-screen cover plate and also have the good bending property, because the properties of hardness, drop-resistant property and the like are in an opposite relationship with the bending property, and the hardness and the drop-resistant property must be sacrificed for having the good bending property. Therefore, how to solve the problem that the cover plate of the flexible display screen has the hardness characteristic of the traditional hard screen cover plate and has a good bending characteristic is the key direction of research on the flexible display screen.
Disclosure of Invention
The embodiment of the application aims at providing a flexible cover plate, a flexible display screen and a display panel to solve the technical problem that the flexible cover plate in the prior art cannot meet the requirements for hardness and drop resistance at the same time and has good bending property.
The embodiment of the application solves the technical problem and provides the following technical scheme:
a flexible cover plate is applied to a flexible display screen and comprises: the ultrathin glass layer is used for being attached to the flexible display screen and has bendability;
a substrate formed on the ultra-thin glass layer, the substrate for increasing a hardness of the flexible cover sheet.
Optionally, the flexible cover plate has a thickness in a range of 10 μm to 200 μm.
Optionally, the flexible cover plate further comprises an ink layer laminated on the surface of the ultra-thin glass layer far away from the substrate.
Optionally, the thickness of the ink layer ranges from 3 μm to 30 μm.
Optionally, the substrate is coated on the ultra-thin glass layer; the thickness range of the base material is 1-100 mu m.
Optionally, the thickness of the ultrathin glass layer ranges from 50 μm to 75 μm, the young's modulus of the ultrathin glass layer ranges from 10Gpa to 100Gpa, the surface hardness of the ultrathin glass layer ranges from 3H to 9H, and the surface flatness of the ultrathin glass layer is not greater than 10 nm.
Optionally, the flexible cover sheet further comprises a functional coating comprising one or more of a stiffening layer, an anti-fingerprint layer, an anti-glare layer, and an anti-reflection layer;
one or more of the hardening layer, the anti-fingerprint layer, the anti-glare layer and the anti-reflection layer are respectively laminated on the substrate or the ultra-thin glass layer.
Optionally, the functional coating has a thickness in a range of 1 μm to 20 μm.
Optionally, the flexible cover plate further comprises a glue layer disposed between the ultra-thin glass layer and the substrate.
Optionally, the glue layer is an adhesive layer, and the adhesive layer is used for reducing stress applied when the flexible cover plate is bent.
Optionally, the viscosity of the adhesive layer ranges from 3N/inch to 15N/inch; and/or when the external temperature is-40 ℃, the storage modulus of the adhesive layer is not more than 2000 KPa;
when the external temperature is-20 ℃, the storage modulus of the adhesive layer is not more than 200 KPa;
when the external temperature is within the range of 0-100 ℃, the storage modulus of the adhesive layer is within the range of 10-60 KPa. Optionally, the glue layer is an anti-adhesive layer for separating the ultra-thin glass layer from the substrate under preset conditions.
Optionally, the flexible cover plate further comprises an energy reduction layer disposed between the substrate and the glue layer.
Optionally, the energy reduction layer is one or both of an ultraviolet absorbing layer or a heat dissipation layer.
The embodiment of the application also provides the following technical scheme for solving the technical problems:
a flexible display screen comprising: the flexible cover plate, the display module and the bottom plate; the display module is arranged between the flexible cover plate and the bottom plate.
The embodiment of the application also provides the following technical scheme for solving the technical problems:
a display panel, comprising: a first protective layer;
the extrusion deformation layer is positioned on the first protection layer;
in the flexible display screen, the flexible display screen is positioned on one side of the extrusion deformation layer, which is far away from the first protection layer;
the second protective layer is positioned on one side, far away from the first protective layer, of the flexible display screen;
a pressure sensor located between the second protective layer and the crush deformation layer.
Compared with the prior art, in the flexible apron that this application embodiment provided, because the ultra-thin characteristic on ultra-thin glass layer makes flexible apron has good bending characteristic, and the substrate has improved the hardness of flexible apron when not influencing the bending characteristic of flexible apron simultaneously, makes by ultra-thin glass layer with the flexible apron that the substrate constitutes jointly has good bending characteristic simultaneously, still has hardness, resistant characteristic such as falling, has satisfied the requirement to flexible apron in the flexible display screen.
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the structures shown in the drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a flexible cover according to an embodiment of the present disclosure;
fig. 2-4 are schematic structural views of a flexible cover sheet according to various some embodiments;
FIG. 5 is a schematic structural diagram of a flexible display provided by an embodiment of the present application;
fig. 6 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure.
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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 application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. If in the embodiments of the present application there is a description referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Referring to fig. 1, a flexible cover plate 100 provided in an embodiment of the present application, which is applied to a flexible display screen, includes an ultra-thin glass layer 20 and a substrate 40, where the ultra-thin glass layer 20 is used for being attached to the flexible display screen, and the ultra-thin glass layer 20 has bendability; due to the ultrathin characteristic of the ultrathin glass layer 20, the ultrathin glass layer 20 has good bending characteristic, and on the basis of good bendability, the ultrathin glass layer 20 can have higher hardness and/or rigidity so as to meet the characteristics of falling resistance, recovery and the like.
The substrate 40 is formed on the ultra-thin glass layer 20, and the substrate 40 is used for improving the hardness of the flexible cover plate 100. Since the substrate 40 is formed on the ultra-thin glass layer 20 and faces a user, the substrate 40 has scratch and abrasion resistance while having a predetermined hardness. Further, when the material of the base material 40 is an organic material, the base material 40 has a bending property, so that the flexibility of the flexible cover plate 100 can be further improved.
In this embodiment, due to the ultra-thin characteristic of the ultra-thin glass layer 20, the flexible cover plate 100 has a good bending characteristic, and the substrate 40 improves the hardness of the flexible cover plate 100 while not affecting the bending characteristic of the flexible cover plate 100, so that the flexible cover plate 100, which is composed of the ultra-thin glass layer 20 and the substrate 40, has the good bending characteristic and also has the characteristics of hardness, falling resistance and the like, thereby meeting the requirements of the flexible display screen on the flexible cover plate 100.
On the basis of ensuring that the flexible cover plate 100 has a certain hardness, in order to make the flexible cover plate 100 have better bending characteristics, the thickness of the flexible cover plate 100 composed of the ultra-thin glass layer 20 and the base material 40 is in a range of 10 μm to 200 μm, and preferably, the thickness of the flexible cover plate 100 is in a range of 40 μm to 100 μm.
The ultrathin glass layer 20 may be alkali-containing ultrathin glass and alkali-free ultrathin glass, and specifically, the alkali-containing ultrathin glass may be soda-lime-silica glass or aluminosilicate glass. The alkali-free ultra-thin glass may be a borate glass.
The ultra-thin glass layer 20 is thinned (etched) and strengthened (ion-exchanged) to meet the requirement of ultra-thin characteristics, the thickness of the ultra-thin glass layer 20 can be 10 μm to 100 μm, and preferably, the thickness of the ultra-thin glass layer 20 is 50 μm to 75 μm.
In some implementations, the ultra-thin glass layer 20 can be made pliable while having a high degree of hardness and/or stiffness to meet drop and recovery characteristics. The surface hardness of the ultra-thin glass layer 20 ranges from 3H to 9H, preferably, the surface hardness of the ultra-thin glass layer 20 ranges from 4H to 7H, the Young modulus (E) of the ultra-thin glass layer 20 ranges from 10GPa to 100GPa, preferably, the Young modulus (E) of the ultra-thin glass layer 20 ranges from 50Gpa to 80Gpa, and the surface flatness of the ultra-thin glass layer is not more than 10 nm.
The following is a concrete implementation or manufacturing process, taking aluminosilicate ultrathin glass as an example for explanation:
the aluminosilicate ultrathin glass comprises the following raw materials in percentage by weight: 60 parts of silicon oxide, 10 parts of aluminum oxide, 11 parts of sodium oxide and 3 parts of magnesium oxide;
the preparation method of the aluminosilicate ultrathin glass comprises the following steps:
1) melting raw materials: directly adding the raw materials of the aluminosilicate ultrathin glass into a melting furnace at about 1300 ℃ to form molten glass;
2) clarifying molten glass: raising the temperature to 1400-1500 ℃ to form glass liquid, and discharging visible bubbles and dissolved gas in the glass liquid;
3) homogenizing molten glass: the glass is kept at high temperature (for example, 1200 ℃ C. and 1300 ℃ C.) for a long time, strips in the glass liquid are eliminated, and homogenized glass liquid is formed;
4) cooling molten glass: uniformly cooling the clarified and homogenized molten glass, and forming glass;
5) treating the aluminosilicate ultrathin glass prepared in the step 4) by adopting an ion exchange method, wherein the treatment steps are as follows: ultrasonic cleaning and scrubbing are carried out on glass, thinning (etching) is carried out on aluminosilicate ultrathin glass, then preheating treatment is carried out at 200-300 ℃, and then the aluminosilicate ultrathin glass is immersed into melting KNO at 450 DEG C3Performing ion exchange treatment. And finally forming the aluminosilicate ultrathin glass.
The material of the substrate 40 may be PI (polyimide), CPI (colorless transparent polyimide), PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), PC (Polycarbonate).
In order to form the substrate 40 on the ultra-thin glass layer 20 and make the substrate 40 have a certain hardness, thereby increasing the hardness of the flexible cover plate 100, the substrate 40 may be formed on the ultra-thin glass layer 20 by a Roll-to-Roll (Roll) process such as coating or printing. The surface hardness of the base material 40 ranges from 1H to 5H, and preferably, the surface hardness of the base material 40 ranges from 3H to 4H.
In order to provide the base material 40 with a certain bending property and further improve the bendability of the flexible cover sheet 100, the young's modulus (E) of the base material 40 is in a range of 2Gpa to 10Gpa, preferably, the young's modulus (E) of the base material 40 is in a range of 5 to 7Gpa, the thickness of the base material 40 is in a range of 10 to 100 μm, and preferably, the thickness of the base material 40 is in a range of 20 to 60 μm.
Referring to fig. 2, a flexible cover sheet 100a according to some embodiments of the present application is substantially the same as the flexible cover sheet 100 shown in fig. 1, except that the flexible cover sheet 100 further includes a functional coating 60, the functional coating 60 is coated on a surface of the substrate 40 facing away from the ultra-thin glass layer 20, and the functional coating 60 includes one or more of a hardening layer, an anti-fingerprint layer, an anti-glare layer, and an anti-reflection layer. When the functional coating 60 includes a plurality of coating layers, the stacking order of the plurality of coating layers may be set according to the actual requirement, and is not limited herein. Since the different types of coatings are different in material and corresponding applications, in practical applications, one or more of the coatings may be applied to the surface of the substrate 40 opposite to the ultra-thin glass layer 20 in order to achieve different functions.
Specifically, the hardened layer is used to protect the substrate 40 and improve the scratch and wear resistant properties of the flexible cover plate 100, and the hardened layer may be made of a metal nitride, a pure metal, or metal carbon, or any combination of a metal, a nitride, and carbon, or a so-called DLC-layer (diamond-like carbon layer).
Specifically, the anti-fingerprint layer is used for promoting the anti-soil performance of flexible apron 100, the anti-fingerprint layer can reduce adhesion such as fingerprint, greasy dirt, dust, water on flexible apron 100. The anti-fingerprint layer can be made of organic fluoride.
Specifically, the antiglare layer is used to control light scattering/light reflection to suppress deterioration in visibility of the image display device, and the material of the antiglare layer may be a second binder of a second (meth) acrylate-based crosslinked polymer, and at least two kinds of light-transmitting fine particles having a submicron (sub μm) order dispersed on the second binder.
Specifically, the anti-reflection layer is used for reducing reflection of an image and reflection of light by light scattering or optical interference, and the material of the anti-reflection layer may be a polyvinyl alcohol (PVA), but not limited thereto, and may also be replaced by adding a pigment to a liquid crystal so as to further reduce the thickness. The thickness of the anti-reflection layer ranges from 3um to 50um, but not limited thereto.
In some embodiments, the functional coating 60 may also be a transmission enhancing layer, a light blocking layer, a protective layer, and the like. One or more of the layers can be optionally selected to be coated on the surface of the substrate 40 facing away from the ultra-thin glass layer 20, depending on the desired function.
Specifically, the transmittance increasing layer can enhance the transparency of the color of the flexible cover sheet 100, and the transmittance increasing layer can also enhance the brightness of the bottom of the cover sheet 100 and the brightness of the appearance color of the flexible cover sheet 100. The transmittance enhancing layer may be formed by electroplating. The material of the transmission increasing layer comprises silicon oxide and titanium oxide.
Referring to fig. 3, a flexible cover sheet 100b according to some embodiments of the present application is substantially the same as the flexible cover sheet 100 shown in fig. 1, except that the flexible cover sheet 100b further includes a glue layer 80, and the glue layer 80 is disposed between the ultra-thin glass layer 20 and the substrate 40. The adhesive layer 80 may be an adhesive layer or a viscosity reducing layer.
When the flexible cover plate 100 is bent, in order to reduce stress applied to the ultra-thin glass layer 20 and the substrate 40 and further improve the bending characteristic of the flexible cover plate 100, the adhesive layer 80 may be an adhesive layer, the ultra-thin glass layer 20 and the substrate 40 are adhered together through the adhesive layer, and when the flexible cover plate 100 is bent, the adhesive layer may generate an adhesive force, so that the stress applied to the ultra-thin glass layer 20 and the substrate 40 when the flexible cover plate 100 is bent can be distributed, the stress applied to the ultra-thin glass layer 20 and the substrate 40 when the flexible cover plate is bent can be further reduced, and the bending characteristic of the flexible cover plate 100 can be improved.
In order to better reduce the stress on the ultrathin glass layer 20 and the base material 40, the viscosity of the adhesive layer is set to be in a range of 3N/inch to 20N/inch, and preferably in a range of 6N/inch to 12N/inch; when the external temperature is minus 40 ℃, the storage modulus of the adhesive layer is not more than 2000 KPa; when the external temperature is-20 ℃, the storage modulus of the adhesive layer is not more than 200 KPa; when the external temperature is within the range of 0-100 ℃, the storage modulus of the adhesive layer is within the range of 10-60 KPa.
The adhesive layer may be made of one of optical adhesive, pressure-sensitive adhesive, and the components of the adhesive layer include, but are not limited to, one or more of acrylic compounds, silicone compounds, and rubber compounds.
In order to solve the problem of repeated processing when the substrate 40 is damaged or destroyed, the adhesive layer 80 may be an anti-adhesive layer, and the anti-adhesive layer is decomposed or generates gas under the conditions of light (UV light/laser light, etc.), heating, voltage, etc., so that the interfacial adhesion (peel strength) of the anti-adhesive layer is sharply reduced, and the viscosity of the anti-adhesive layer may be reduced to 1-50 g/inch. So that the ultra-thin glass layer 20 is peeled from the substrate 40 without damaging the interface of the ultra-thin glass layer 20, thereby solving the problem of repeated processing and reducing the cost of repeated processing.
The anti-adhesion layer can be a UV anti-adhesion layer, a laser anti-adhesion layer, a heating anti-adhesion layer and the like, and in the embodiment, the anti-adhesion layer is a UV anti-adhesion layer and is mainly prepared from the following raw materials in percentage by weight: 20 to 50 percent of acrylate pressure sensitive adhesive resin, 1 to 30 percent of polyfunctional oligomer and/or polyfunctional monomer, 0.3 to 2 percent of cross-linking agent, 0.1 to 5 percent of antistatic agent, 0 to 2 percent of dispersant, 0.2 to 2 percent of flatting agent, 0.5 to 5 percent of photoinitiator and 25 to 60 percent of solvent. In a preferred embodiment of the present application, the acrylate pressure sensitive adhesive resin is a solvent-based acrylate pressure sensitive adhesive. More preferably, the molecular weight of the acrylate pressure sensitive adhesive resin is 10 to 200 ten thousand. Further, preferably, the solid content of the solvent-type acrylate pressure-sensitive adhesive is 20-60%, and the viscosity is 200-20000 cps. The specific acrylate pressure sensitive adhesive resin is adopted to help improve the stripping force and the cohesion of the UV anti-adhesive layer.
In order to further improve the viscosity reducing performance of the viscosity reducing layer and simultaneously improve the spreading performance, the curing performance and other physical properties of the viscosity reducing layer, the material of the viscosity reducing layer comprises one or more of but not limited to Silchurf A010-D, Silub TMP D218, Silquat D208-CDA, Silmer OH C50, Silmer ACR D208, Silmer NCO Di-100, Silmer EP Di-50, UV3500 series products of Picker, UV2700 series products of Windart, UV9300, UV9430 of Michigan, POLY360 and PLOY200 of Lanxing.
Referring to fig. 4, a flexible cover sheet 100c according to some embodiments of the present disclosure is substantially the same as the flexible cover sheet 100b shown in fig. 3, except that the flexible cover sheet 100c further includes an energy reduction layer 30, and the energy reduction layer 30 is disposed between the glue layer 80 and the substrate 40. The energy reduction layer 30 may be an ultraviolet absorbing layer and/or a heat sink layer.
When the glue layer 80 is an adhesive layer, the energy reduction layer 30 can block the damage of the external environment (high temperature and ultraviolet rays) to the flexible display screen, and prolong the service life of the flexible display screen. For example, in the midday of summer, the temperature of the external environment is high and the intensity of the ultraviolet radiation is high, and the flexible display screen is exposed to the external environment, if the energy reduction layer 30 is not provided, the high temperature and the ultraviolet radiation may affect the flexible display screen, and accelerate the aging speed. When the energy reduction layer 30 is disposed, the energy reduction layer 30 can absorb the high temperature and the ultraviolet rays, thereby avoiding the influence of the high temperature and the ultraviolet rays on the flexible display screen and prolonging the service life of the flexible display screen.
When the adhesive layer 80 is an anti-adhesive layer, the energy reducing layer 30 can not only block the damage of the external environment (high temperature and ultraviolet rays) to the flexible display screen and prolong the service life of the flexible display screen, but also prevent the interface adhesion (peel strength) of the anti-adhesive layer from being sharply reduced due to the influence of the high temperature and the ultraviolet rays, so that the ultra-thin glass layer 20 is peeled from the substrate 40, and the use of the product is influenced.
The energy reduction layer 30 includes, but is not limited to, an ultraviolet absorbing layer, a heat sink layer, and the like.
The ultraviolet absorption layer is used for absorbing ultraviolet rays of the external environment so as to reduce the absorption of the flexible display screen to the ultraviolet rays, and meanwhile, the ultraviolet absorption layer can be used as a protection film to protect the ultrathin glass layer 20 from being abraded and prolong the service life.
The material of the ultraviolet absorption layer includes but is not limited to one or more of amorphous silicon, indium tin oxide and indium gallium zinc oxide.
The heat dissipation layer is used for absorbing heat in the flexible cover plate 100 and rapidly dissipating heat outside the flexible cover plate 100, and meanwhile, the ultraviolet absorption layer can be used as a protection film to protect the ultrathin glass layer 20 from being abraded and prolong the service life.
In order to improve the heat dissipation efficiency of the heat dissipation layer and simultaneously realize the effects of transverse heat dissipation/heat transfer and longitudinal non-heat dissipation/heat transfer, in this embodiment, the heat dissipation layer is a graphene heat dissipation layer or a molybdenum dioxide heat dissipation layer;
taking the graphene heat dissipation layer as an example, the preparation method specifically comprises the following steps:
1) dispersing graphene in an organic solvent, performing ultrasonic dispersion treatment, adding aluminum salt and triethanolamine, and stirring at a high speed for 30-60 min;
2) dropwise adding ethylenediamine into the stirred material prepared in the step 1), uniformly dispersing, carrying out hydrothermal reaction, and filtering and drying gel precipitate obtained by the hydrothermal reaction;
3) calcining the gel precipitate subjected to drying treatment in the step 2) in a muffle furnace at the temperature of 250-300 ℃ for 10-25min to obtain graphene-inlaid flaky alumina;
4) uniformly dispersing the graphene-inlaid flaky alumina prepared in the step 3) with powdery high-temperature-resistant plastic, aluminum powder, lubricating powder, an antioxidant and a plasticizer, extruding and rolling the mixture by a screw to form a sheet, and then stretching, quenching and curling the sheet in a two-way manner to finally obtain the graphene heat dissipation layer.
In some embodiments, the flexible cover sheet 100 further comprises an ink layer laminated to the surface of the ultra-thin glass layer 20 away from the substrate 40. The thickness range of the ink layer is 3-30 mu m.
The ink layer is used to provide the flexible cover sheet 100 with a desired appearance color, and the appearance color of the ink layer may be red, orange, yellow, green, cyan, blue, violet, pink, white, etc. The ink layer may be formed by a Screen Printing process, and in this embodiment, the material of the ink layer is black ink prepared from epoxy resin.
Referring to fig. 5, another embodiment of the present application further provides a flexible display 200, including: the display module assembly comprises a flexible cover plate 210, a display module assembly 220 and a bottom plate 230, wherein the display module assembly 220 is arranged between the flexible cover plate 210 and the bottom plate 230. The flexible cover 210 may be the flexible cover 100, 100a, 100b, or 100c of any of the embodiments described above.
The chassis 230 may use a flexible chassis including a material having flexibility, such as thin glass, a metal foil, or a plastic substrate, for example, a plastic chassis having a flexible structure including a resin such as Polyimide (PI), Polycarbonate (PC), polyethylene glycol terephthalate (PET), Polyethersulfone (PES), polyethylene film (PEN), Fiber Reinforced Plastic (FRP), or the like coated on both sides of a base film.
The display module 220 includes a driving circuit, a pixel electrode, an organic light emitting device, a common electrode, a gate line, a data line, and the like, the driving circuit includes a thin film transistor located on the island portion, a drain of the thin film transistor is connected to the pixel electrode, the pixel electrode is electrically connected to one side of the organic light emitting device, and the other side of the organic light emitting device opposite to the pixel electrode is electrically connected to the common electrode. After the gate line transmits a scan signal to the driving circuit and the data line transmits a data signal to the driving circuit, the driving circuit supplies a current to the organic light emitting element through the turned-on thin film transistor and the pixel electrode, so that the organic light emitting element emits light and displays a picture.
In this embodiment, the display module 220 and the flexible cover 210 are packaged by non-conductive adhesive (NCA), which is a material without conductive particles and can be of two types, namely, non-conductive adhesive (NCP) and non-conductive film (NCF), in this embodiment, the non-conductive adhesive is a non-conductive film, the non-conductive film is attached between the display module 220 and the flexible cover 210, and the pressure is applied to make the display module bumps penetrate through the non-conductive film directly below the display module to directly contact with the corresponding cover lines, thereby achieving electrical connection. The non-conductive film is heated and cured, and the direct contact between the display module salient points and the printed lines can be fixed through the shrinkage of the non-conductive film. The curing shrinkage of the non-conductive film at a certain temperature not only ensures stable electrical connection between the display module 220 and the flexible cover plate 210, but also provides a certain mechanical connection, thereby ensuring good bonding performance of the package body in both aspects.
Referring to fig. 6, another embodiment of the present application further provides a display panel 300, including: a first protective layer 310, an extrusion deformation layer 320, the flexible display 200 in any of the above embodiments, a second protective layer 340, and a pressure sensor; the crush deformation layer 320 is located on the first protective layer 310; the flexible display 200 is positioned on the side of the crush deformation layer 320 far away from the first protective layer 310; the second protection layer 340 is located on the side of the flexible display 200 away from the first protection layer 310; the pressure sensor is located between the second protective layer 340 and the flexible display screen 200, or the pressure sensor is located between the flexible display screen 200 and the crush deformation layer 320.
After pressure sensor sets up between flexible display screen 200 and second protective layer 340, when flexible display screen 200 takes place to buckle, first protective layer 310 is crooked and extrusion deformation layer 320, the extrusion deformation layer 320 that the regional correspondence of buckling can be compressed, the deformation power when extrusion deformation layer 320 will buckle flexible display screen 200 at this moment changes for the extrusion force, and transmit the extrusion force to pressure sensor through flexible display screen 200 on, and the degree that flexible display screen 200 buckles is big more, then the power that transmits to pressure sensor is also big more, the degree of buckling of user's ability adjustment flexible display panel 200 according to the size of the power that pressure sensor detected, the power that the department of buckling that makes flexible display screen 200 received keeps in certain extent, thereby the safety in utilization of flexible display screen 200 has been improved to a certain extent. The first protective layer 310 also serves to protect the crush deformation layer 320 from being damaged, the second protective layer 340 serves to protect the pressure sensor from being damaged, and the second protective layer 340 can also serve to protect the flexible display 200. Moreover, since the deformation of the compressive deformation layer 320 can occur under the action of force, when one side of the display panel 300, on which the first protection layer 310 is disposed, is impacted, the deformation of the compressive deformation layer 320 can occur, so as to play a role in buffering, thereby reducing the probability of damage to the display panel 300 when the impact is received.
Compared with the prior art, the flexible display screen 200 of this application display panel 300 provides a flexible apron 100, 100a, 100b or 100c, because the ultra-thin characteristic on ultra-thin glass layer makes the flexible apron has good bending characteristic, and the substrate has improved the hardness of flexible apron simultaneously when not influencing the bending characteristic of flexible apron, makes by ultra-thin glass layer with the flexible apron that the substrate constitutes jointly has good bending characteristic simultaneously, still has hardness, resistant characteristic such as falling, has satisfied the requirement to flexible apron in the flexible display screen.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; within the context of the present application, where technical features in the above embodiments or in different embodiments can also be combined, the steps can be implemented in any order and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of brevity; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some 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 application.
Claims (16)
- A flexible cover plate is applied to a flexible display screen and is characterized by comprising:the ultrathin glass layer is used for being attached to the flexible display screen and has bendability;a substrate formed on the ultra-thin glass layer, the substrate for increasing a hardness of the flexible cover sheet.
- The flexible cover sheet of claim 1,the thickness of the flexible cover plate ranges from 10 micrometers to 200 micrometers.
- The flexible cover sheet of claim 1,the flexible cover plate further comprises an ink layer, and the ink layer is laminated on the surface, far away from the base material, of the ultrathin glass layer.
- The flexible cover sheet of claim 1,the thickness range of the ink layer is 3-30 mu m.
- The flexible cover sheet of claim 1,the substrate is coated on the ultrathin glass layer;the thickness range of the base material is 1-100 mu m.
- Flexible cover sheet according to any one of claims 1 to 5,the thickness range of the ultrathin glass layer is 50-75 micrometers, the Young modulus range of the ultrathin glass layer is 10-100 Gpa, the surface hardness range of the ultrathin glass layer is 3-9H, and the surface flatness of the ultrathin glass layer is not more than 10 nm.
- Flexible cover sheet according to any one of claims 1 to 5,the flexible cover plate also comprises a functional coating, wherein the functional coating comprises one or more of a hardening layer, an anti-fingerprint layer, an anti-dazzle layer and an anti-reflection layer;one or more of the hardening layer, the anti-fingerprint layer, the anti-glare layer and the anti-reflection layer are respectively laminated on the substrate or the ultra-thin glass layer.
- The flexible cover sheet of claim 7,the thickness range of the functional coating is 1-20 mu m.
- Flexible cover sheet according to any one of claims 1 to 5,the flexible cover plate further comprises an adhesive layer, and the adhesive layer is arranged between the ultrathin glass layer and the base material.
- The flexible cover sheet of claim 9,the glue film is the gluing layer, the gluing layer is used for reducing the stress that receives when flexible apron is buckled.
- The flexible cover sheet of claim 10,the viscosity range of the adhesive layer is 3N/inch to 15N/inch; and/or when the external temperature is-40 ℃, the storage modulus of the adhesive layer is not more than 2000 KPa;when the external temperature is-20 ℃, the storage modulus of the adhesive layer is not more than 200 KPa;when the external temperature is within the range of 0-100 ℃, the storage modulus of the adhesive layer is within the range of 10-60 KPa.
- The flexible cover sheet of claim 11,the adhesive layer is an anti-adhesion layer used for separating the ultrathin glass layer from the base material under a preset condition.
- The flexible cover sheet of claim 12,the flexible cover plate further comprises an energy reduction layer, and the energy reduction layer is arranged between the base material and the adhesive layer.
- The flexible cover sheet of claim 13,the energy reduction layer is one or two of an ultraviolet absorption layer or a heat dissipation layer.
- A flexible display screen, comprising:the flexible cover, display module and backplane of any of claims 1 to 14;the display module is arranged between the flexible cover plate and the bottom plate.
- A display panel, comprising:a first protective layer;the extrusion deformation layer is positioned on the first protection layer;the flexible display of claim 15, on a side of the crush-deformed layer remote from the first protective layer;the second protective layer is positioned on one side, far away from the first protective layer, of the flexible display screen;a pressure sensor located between the second protective layer and the crush deformation layer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/095619 WO2021003740A1 (en) | 2019-07-11 | 2019-07-11 | Flexible cover plate, flexible display screen, and display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113366556A true CN113366556A (en) | 2021-09-07 |
Family
ID=74114351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980090086.2A Pending CN113366556A (en) | 2019-07-11 | 2019-07-11 | Flexible cover plate, flexible display screen and display panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113366556A (en) |
| WO (1) | WO2021003740A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115019660A (en) * | 2022-06-29 | 2022-09-06 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822233A (en) * | 2021-01-18 | 2022-07-29 | 华为技术有限公司 | Foldable display device and electronic equipment |
| WO2022152177A1 (en) * | 2021-01-18 | 2022-07-21 | 华为技术有限公司 | Folding display device and electronic apparatus |
| CN112767838B (en) * | 2021-01-19 | 2022-10-21 | Oppo（重庆）智能科技有限公司 | Flexible display screen and electronic equipment |
| CN113035065B (en) * | 2021-03-05 | 2022-11-22 | 京东方科技集团股份有限公司 | Cover plate and display device |
| CN113194172A (en) * | 2021-04-29 | 2021-07-30 | 维沃移动通信有限公司 | Flexible display screen and electronic equipment |
| CN113257133B (en) * | 2021-05-26 | 2023-04-07 | 维沃移动通信有限公司 | Flexible display screen and electronic equipment |
| CN113410270A (en) * | 2021-06-07 | 2021-09-17 | 合肥维信诺科技有限公司 | Cover plate, display panel and display device |
| CN114187830A (en) * | 2021-11-18 | 2022-03-15 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel |
| CN117794735A (en) * | 2022-05-18 | 2024-03-29 | 京东方科技集团股份有限公司 | Protective cover plate, manufacturing method and display device |
| CN115116342A (en) * | 2022-07-28 | 2022-09-27 | 合肥维信诺科技有限公司 | Cover plate and display module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200536761A (en) * | 2004-04-21 | 2005-11-16 | Nitto Denko Corp | Film for protecting mother glass for flat panel display and use thereof |
| TW201434770A (en) * | 2013-03-15 | 2014-09-16 | Schott Glass Technologies Suzhou Co Ltd | Chemically toughened flexible ultrathin glass |
| CN107331300A (en) * | 2017-07-21 | 2017-11-07 | 上海天马微电子有限公司 | A kind of flexible display panels and flexible display apparatus |
| CN108962028A (en) * | 2018-07-10 | 2018-12-07 | 云谷（固安）科技有限公司 | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus |
| CN208737340U (en) * | 2018-07-10 | 2019-04-12 | 云谷（固安）科技有限公司 | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102618598B1 (en) * | 2016-10-31 | 2023-12-27 | 엘지디스플레이 주식회사 | Flexible Display Device |
| CN108511501B (en) * | 2018-05-09 | 2021-01-22 | 京东方科技集团股份有限公司 | Bendable cover plate, OLED display device and manufacturing method thereof |
| CN108922406B (en) * | 2018-08-22 | 2020-11-03 | 京东方科技集团股份有限公司 | Flexible cover plate, organic display panel, display device and manufacturing method |
-
2019
- 2019-07-11 WO PCT/CN2019/095619 patent/WO2021003740A1/en active Application Filing
- 2019-07-11 CN CN201980090086.2A patent/CN113366556A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200536761A (en) * | 2004-04-21 | 2005-11-16 | Nitto Denko Corp | Film for protecting mother glass for flat panel display and use thereof |
| TW201434770A (en) * | 2013-03-15 | 2014-09-16 | Schott Glass Technologies Suzhou Co Ltd | Chemically toughened flexible ultrathin glass |
| CN107331300A (en) * | 2017-07-21 | 2017-11-07 | 上海天马微电子有限公司 | A kind of flexible display panels and flexible display apparatus |
| CN108962028A (en) * | 2018-07-10 | 2018-12-07 | 云谷（固安）科技有限公司 | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus |
| CN208737340U (en) * | 2018-07-10 | 2019-04-12 | 云谷（固安）科技有限公司 | Flexible display screen cover board, Flexible Displays mould group and flexible display apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115019660A (en) * | 2022-06-29 | 2022-09-06 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
| CN115019660B (en) * | 2022-06-29 | 2023-12-01 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021003740A1 (en) | 2021-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113366556A (en) | Flexible cover plate, flexible display screen and display panel | |
| TW201940022A (en) | Flexible cover, flexible display screen and display panel | |
| JP7323654B2 (en) | Flexible display cover, flexible display module, and flexible display device | |
| US11579339B2 (en) | Replaceable cover lens for flexible display | |
| CN106164194B (en) | Adhesive layer and scattering-preventing adhesive sheet | |
| CN110782785B (en) | Protective sheet, display device, and electronic apparatus | |
| JP7429651B2 (en) | Display device using adhesive adjustment layer | |
| KR101953367B1 (en) | Photocurable resin composition and fabrication method of window member using the same | |
| JP6290377B2 (en) | Laminate | |
| CN113383297A (en) | Flexible display module, manufacturing method thereof and electronic equipment | |
| KR20090103537A (en) | Double-side adhesive sheet and single unit touch panel display device | |
| KR20130013881A (en) | Cover film for electronic paper | |
| TW201906721A (en) | Laminated body, method of forming optical body on substrate, and camera module mounting device | |
| JP6759407B2 (en) | Polymer plastic front panel and its manufacturing method | |
| US11324133B2 (en) | Attachable/detachable display device comprising polarizing film | |
| US20200411790A1 (en) | Flexible component, electronic device, and method for detaching flexible cover | |
| WO2017170606A1 (en) | Image acquisition device | |
| CN112512790B (en) | Display device using surface-treated peelable layer | |
| KR102468725B1 (en) | Adhesive film and optical device using the same | |
| JP2017042989A (en) | Optical laminate | |
| KR20220014453A (en) | Display device and manufacturing method of window | |
| KR102106167B1 (en) | Composition for window film and flexible window film prepared using the same | |
| KR101803592B1 (en) | Laminate including optically clear adhesive layer and method of preparing the same | |
| JP6550705B2 (en) | Multi-faced substrate for display front panel | |
| TWI835459B (en) | Light source device and display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210907 |