CN110423020A - Foldable ultra-thin glass cover sheet and production method with rotatory polarization function - Google Patents
Foldable ultra-thin glass cover sheet and production method with rotatory polarization function Download PDFInfo
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- CN110423020A CN110423020A CN201910691187.7A CN201910691187A CN110423020A CN 110423020 A CN110423020 A CN 110423020A CN 201910691187 A CN201910691187 A CN 201910691187A CN 110423020 A CN110423020 A CN 110423020A
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- thin glass
- ultra
- rotatory polarization
- glass cover
- wgp
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3644—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the metal being silver
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/38—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal at least one coating being a coating of an organic material
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/78—Coatings specially designed to be durable, e.g. scratch-resistant
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/119—Deposition methods from solutions or suspensions by printing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
- Polarising Elements (AREA)
Abstract
The invention discloses a kind of foldable ultra-thin glass cover sheet with rotatory polarization function, including ultra-thin glass, the ultra-thin glass is printed below ink frame, explosion-proof layer is coated with below ink frame, explosion-proof layer is printed below nanoscale WGP polaroid, 1/4 λ phase difference film is coated with below nanoscale WGP polaroid, rotatory polarization piece of the present invention does not need optical cement and is adhered, both the function of rotatory polarization piece had been merged, eliminate again the thickness of optical cement and traditional round polarizer substrate material be bonded process, so that the function and glass cover-plate of rotatory polarization piece combine together, efficiently reduce the bent angle of glass cover-plate, and the ontology of rotatory polarization piece and glass cover-plate will not generate offset after bending.
Description
Technical field
It is more specifically to a kind of with the foldable of rotatory polarization function the invention belongs to phone folded field of display screen
Ultra-thin glass cover sheet and production method.
Background technique
Since the beginning of the year in 2019, including the companies such as Samsung, BOE issued in succession completely from grind it is folding from
Luminous OLED flexible screen.According to internet message, the companies such as Samsung, Huawei, soft space, millet have also been made relevant folding
Mobile phone products.China Unicom even " folds screen mobile phone within sight in the micro- middle expression of official！"
It folds essential flexible screen in screen mobile phone and not only possesses superpower portability, also possess high-resolution, highlight
The advantages that degree, low energy consumption, future can not only provide high image quality using the mobile phone of the technology, moreover it is possible to extend battery space and come into one
Step enhancing cruising ability.
All there is many problems, such as the Galaxy Fold of Samsung in the folding screen mobile phone issued on the market at present, just issue
Just is there are various problems on quick-fried screen in test machine.So not having cell phone manufacturer also at present, veritably volume production sells folding screen mobile phone.
One of problem is cover sheet using transparent plastics material, and hardness is insufficient, and is easy to produce folding line.
Fold screen mobile phone in addition to flexible OLED display panel must it is foldable other than, the protection of flexible OLED display panel outer layer
Cover board also must be it is folding, glass cover-plate is covered on above oled panel, in whole mobile phone display screen, glass cover
Some other functional layers, such as polaroid are also needed between plate and panel layer.
The polaroid of OLED is necessary for rotatory polarization piece, and rotatory polarization piece is by a piece of polaroid and a piece of 1/4 λ phase difference film
Realize rotatory polarization, way traditional at present is that rotatory polarization piece is individually bonded, if encountering folding oled panel, this way
Directly increase the thickness of entire folding display screen, be unfavorable for screen folding, and after folding rotatory polarization piece with glass cover-plate or
Oled panel is easy to produce offset.
For folding screen, thickness is thicker, adhesive layer is more, causes folding more difficult, foldable angle is bigger.
Summary of the invention
In view of the deficiencies of the prior art, optical cement is not needed the present invention provides a kind of rotatory polarization piece to be adhered, both merged
The function of rotatory polarization piece, but eliminate the thickness of optical cement and traditional round polarizer substrate material be bonded process so that rotatory polarization piece
Function and glass cover-plate combine together, efficiently reduce the bent angle of glass cover-plate, and rotatory polarization piece after bending
Offset will not be generated with the ontology of glass cover-plate, the mobile phone or electronic equipment for being particularly suitable for infolding screen use.
To achieve the above object, the present invention provides the following technical scheme that it is a kind of foldable super with rotatory polarization function
Thin glass cover sheet, including ultra-thin glass, the ultra-thin glass is printed below ink frame, is coated with below ink frame
Explosion-proof layer, explosion-proof layer is printed below nanoscale WGP polaroid, and 1/4 λ phase difference is coated with below nanoscale WGP polaroid
Film.
The further explosion-proof layer is transparent resin coating.
The material of the further nanoscale WGP polaroid is nano silver.
The groove of several bar shapeds is provided on the further transparent resin coating, nanoscale WGP polaroid is printed in
In groove.
The further ink frame with a thickness of 6-8 microns.
The further transparent resin coating with a thickness of 30-60 microns.
Anti-pollution layer is provided with above the further ultra-thin glass.
A kind of production method of the foldable ultra-thin glass cover sheet with rotatory polarization function, includes the following steps,
1) in the lower surface of ultra-thin glass, upper required ink frame, ink side are printed by way of intaglio printing
The thickness of frame is at 6-8 microns；
2) lower surface of ink frame is coated with layer of transparent resinous coat, with a thickness of 30-60 microns；
3) upper one layer of nanoscale WGP polaroid, detailed process then are printed in the lower surface of transparent resin coating again are as follows:
Firstly, being formed on transparent resin coating recessed using the mold of the protrusion construction with shape of stripes with nanometer embossing
Slot；Secondly, only filling metal ink in groove part by using blade；Finally, burning out metal gate WGP polarisation using baking oven
Piece；
4) one layer of 1/4 λ phase difference film is coated in the lower section of nanoscale WGP polaroid.
Further include further following steps, is equipped with anti-pollution layer in the upper surface of ultra-thin glass, this step is placed in step 1)
After preceding or step 4).
Further step 3) in nanoscale WGP polaroid material be nano silver.
Compared with prior art, the beneficial effects of the present invention are:
1, the glass cover-plate that this programme provides, prints polaroid in such a way that nanoscale WGP polaroid is by printing
It brushes on the ontology of glass cover-plate, realizes linear polarization, reuse coating method and be coated with one layer of 1/4 λ phase difference film, to realize circle
Polarizing function, the ontology of glass cover-plate are the part for removing rotatory polarization.This programme rotatory polarization piece does not need optical cement and is adhered, and both melts
Closed the function of rotatory polarization piece, but eliminate the thickness of optical cement and traditional round polarizer substrate material be bonded process so that circle is inclined
The function and glass cover-plate of mating plate combine together, efficiently reduce the bent angle of glass cover-plate, and circle is inclined after bending
The ontology of mating plate and glass cover-plate will not generate offset, and the mobile phone or electronic equipment for being particularly suitable for infolding screen use；
2,30-60 microns of transparent resin coating, the cost of material is low, and process costs are also low, and can effectively reach anti-
Quick-fried effect；
3, the various border colors such as blue, gold can be printed by the ink frame that gravure apparatus prints, it can be with
Mobile phone applied to different colours.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the foldable ultra-thin glass cover sheet that the present invention has rotatory polarization function；
Fig. 2 is nanoscale WGP polaroid manufacturing process schematic diagram in the present invention；
Fig. 3 is intaglio plate printer device structural schematic diagram used in the present invention.
Appended drawing reference: 1, anti-pollution layer；2, ultra-thin glass；3, ink frame；4.1, explosion-proof layer；4.2, nanoscale WGP is inclined
Mating plate；5,1/4 λ phase difference film；6, mold；7, groove；8, metal ink；9, blade；51, jig；52, bat printing roller；53, recessed
Plate cylinder；54, ink storehouse；55, ink roller；56, doctor.
Specific embodiment
The embodiment of foldable ultra-thin glass cover sheet referring to figs. 1 to Fig. 3 to the present invention with rotatory polarization function is done
It further illustrates.
In the description of the present invention, it should be noted that " laterally (X) ", " vertical if any term " center " for the noun of locality
To (Y) ", " vertical (Z) ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The indicating positions such as "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship is based on attached drawing institutes
The orientation or positional relationship shown is merely for convenience of the narration present invention and simplifies description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and be operated with particular orientation, should not be understood as limiting specific guarantor of the invention
Protect range.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " several ", " several " are meant that two or more, unless separately
There is clearly specific restriction.
A kind of foldable ultra-thin glass cover sheet with rotatory polarization function, including ultra-thin glass 2, the ultra-thin glass
2 it is printed below have ink frame 3, explosion-proof layer 4.1 is coated with below ink frame 3, explosion-proof layer 4.1 is printed below nanoscale
WGP polaroid 4.2, the lower section of nanoscale WGP polaroid 4.2 are coated with 1/4 λ phase difference film 5.
Rotatory polarization piece is collectively formed in nanoscale WGP polaroid 4.2 and 1/4 λ phase difference film 5, and wherein WGP polaroid is by printing
Mode and glass cover-plate ontology (combination of ultra-thin glass 2, ink frame 3 and explosion-proof layer 4.1) combine, save optical cement and biography
It unites rotatory polarization plate substrate, so that the function of rotatory polarization piece and glass cover-plate combine together, efficiently reduce glass cover-plate can
Bending angle, and the ontology of rotatory polarization piece and glass cover-plate will not generate offset after bending.
The material of the preferred nanoscale WGP polaroid 4.2 is nano silver.
Ink frame 3 described in ink frame 3 with a thickness of 6-8 microns, be first for covering outside display screen display area
Part, in addition there are also shaded effect, ink frame 3 can print the various border colors such as blue, gold, can also pass through frame mould
Plate design reaches grain effect to realize the depth of ink, can also repeatedly print different shape and color reaches color and figure
Case effect, the mobile phone that the ink frame 3 of different colours can be suitable for different colours are arranged in pairs or groups.
The present embodiment preferably the explosion-proof layer 4.1 be transparent resin coating, transparent resin coating it is micro- with a thickness of 30-60
Rice, the current application effect of transparent resin coating most preferably CPI have good explosion-proof effect when reaching certain thickness
Fruit, so that glass cover-plate is when by fragmentation is hit, glass disintegrating slag will not splash away, and transparent resin coating is coated on oil
On black frame 3.
Ink frame 3 is the edge for being printed in ultra-thin glass 2, practical when being coated with explosion-proof layer 4.1, explosion-proof layer 4.1 1
Tap touching ink frame 3, another part contact 2 surface of ultra-thin glass.
The groove 7 of several bar shapeds is provided on the preferred transparent resin coating, nanoscale WGP polaroid 4.2 prints
In in groove 7.
Ultra-thin tempered glass of the ultra-thin glass 2 that this programme uses for thickness at 30-100 microns, Germany Xiao Te in 2013
Company has begun the flexible glass that batch supplies 25-100 μ m-thick, and wide about 50cm is hundreds of meters long.Japan AGC public affairs in 2014
The flexible glass SPOOL of thickness 0.05mm is made of float glass process for department.Chinese patent CN10404521B discloses a kind of flexible ultra-thin glass
The preparation method of glass 2.WGP polaroid has been disclosed in Chinese patent 201710261451.4.
The present embodiment ink frame 3 using intaglio plate printer device print, as shown in figure 3, its mainly include ink storehouse 54, it is recessed
Plate cylinder 53, bat printing roller 52 and jig 51, wherein bat printing roller 52 is rubber roller.
Ink is placed in ink storehouse, and ink roller 55 is additionally provided in ink storehouse, and ink roller 55 contradicts gravure cylinder 53,
Ink in 55 picks up ink storehouse of ink roller transfers them in the intaglio plate of gravure cylinder 53, and gravure cylinder 53 turns along the direction a
It is dynamic, doctor 56 is provided with by gravure cylinder 53, by gravure cylinder 53 except the ink in intaglio plate is wiped off, gravure cylinder 53 will be recessed
Printing ink transfer in version is to 52 surface of bat printing roller, and bat printing roller 52 is rotated along the direction b, and ultra-thin glass 2 is placed on jig 51 simultaneously
It is moved along the direction c, for ultra-thin glass 2 by passing through below bat printing roller 52, ink frame 3 is printed in ultra-thin glass by bat printing roller 52
2 surfaces make 3 layers of ink frame to reach 6-8 microns, by this intaglio plate printer device, printing efficiency is high, thick by printing repeatedly
Uniformly, thickness control is accurate for degree.
Each layer of 2 cover sheet of ultra-thin glass in the present embodiment is all made of the mode of printing or coating, without light
Glue is learned, and saves traditional round polarizer substrate material, integral thickness reduces first, and is not likely to produce folding line when bending.
The present embodiment is preferably provided with anti-pollution layer 1 above the ultra-thin glass 2, and anti-pollution layer 1 is coated on ultra-thin glass
2 upper surface of glass.
A kind of production method of 2 cover sheet of foldable ultra-thin glass with rotatory polarization function, includes the following steps,
1) in the lower surface of ultra-thin glass 2, upper required ink frame 3, ink are printed by way of intaglio printing
The thickness of frame 3 is at 6-8 microns；
2) lower surface of ink frame 3 is coated with layer of transparent resinous coat, with a thickness of 30-60 microns；
3) upper one layer of nanoscale WGP polaroid 4.2 then is printed in the lower surface of transparent resin coating again, such as Fig. 2 institute
Show, detailed process are as follows: firstly, using the mold 6 of the protrusion construction with shape of stripes, with nanometer embossing, transparent
Groove 7 is formed on resinous coat；Secondly, being only partially filled with metal ink 8 in groove 7 by using blade 9；Finally, using drying
Case burns out metal gate WGP polaroid；
4) one layer of 1/4 λ phase difference film 5 is coated in the lower section of nanoscale WGP polaroid 4.2.
The present embodiment preferably further includes following steps, is equipped with anti-pollution layer in the upper surface of ultra-thin glass 2, this step is placed in
Before step 1) or after step 4).
The material of nanoscale WGP polaroid 4.2 (namely metal ink 8) is nanometer in the preferred step 3) of the present embodiment
Silver.
By the antiradar reflectivity with the WGP polaroid with high-durability metal, realizing has antiradar reflectivity, high-strength resistance to
The visible light polaroid of long property.Wavelengths of visible light ratio (400-800nm) for visible light metal W GP polaroid is much thin,
Improve polarized light property by the way that metal gate is made thinner, thicker, and line width than previous authenticated 80nm also than it is thinner.
Nanometer embossing, wet control technology, printing technology are merged again, realize that line width is 50nm or less, aspect ratio is 10 or more
8 pattern of metal ink thick film nanometer printing technology.
Transparent resin coating is used as explosion-proof layer 4.1 in the present embodiment, while again as nanoscale WGP polaroid 4.2
Carrier saves the adhesion and traditional round polarizer substrate material of optical cement, substantially reduces integral thickness.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of foldable ultra-thin glass cover sheet with rotatory polarization function, it is characterised in that: described including ultra-thin glass
Ultra-thin glass is printed below ink frame, is coated with explosion-proof layer below ink frame, explosion-proof layer is printed below nanoscale WGP
Polaroid is coated with 1/4 λ phase difference film below nanoscale WGP polaroid.
2. the foldable ultra-thin glass cover sheet according to claim 1 with rotatory polarization function, it is characterised in that: institute
Stating explosion-proof layer is transparent resin coating.
3. the foldable ultra-thin glass cover sheet according to claim 2 with rotatory polarization function, it is characterised in that: institute
The material for stating nanoscale WGP polaroid is nano silver.
4. the foldable ultra-thin glass cover sheet according to claim 3 with rotatory polarization and touch screen function, special
Sign is: the groove of several bar shapeds is provided on the transparent resin coating, nanoscale WGP polaroid is printed in groove.
5. the foldable ultra-thin glass cover sheet according to claim 4 with rotatory polarization function, it is characterised in that: institute
State ink frame with a thickness of 6-8 microns.
6. the foldable ultra-thin glass cover sheet according to claim 4 with rotatory polarization function, it is characterised in that: institute
State transparent resin coating with a thickness of 30-60 microns.
7. the foldable ultra-thin glass cover sheet according to claim 1 with rotatory polarization function, it is characterised in that: institute
It states and is provided with anti-pollution layer above ultra-thin glass.
8. a kind of production method of the foldable ultra-thin glass cover sheet with rotatory polarization function as described in claim 1,
It is characterised in that it includes following steps,
1) in the lower surface of ultra-thin glass, upper required ink frame is printed by way of intaglio printing, ink frame
Thickness is at 6-8 microns；
2) lower surface of ink frame is coated with layer of transparent resinous coat, with a thickness of 30-60 microns；
3) upper one layer of nanoscale WGP polaroid, detailed process then are printed in the lower surface of transparent resin coating again are as follows: first
First, it is formed on transparent resin coating recessed using the mold of the protrusion construction with shape of stripes with nanometer embossing
Slot；Secondly, only filling metal ink in groove part by using blade；Finally, burning out metal gate WGP polarisation using baking oven
Piece；
4) one layer of 1/4 λ phase difference film is coated in the lower section of nanoscale WGP polaroid.
9. the production method of the foldable ultra-thin glass cover sheet according to claim 8 with rotatory polarization function,
It is characterized in that: further including following steps, be equipped with anti-pollution layer in the upper surface of ultra-thin glass, this step is placed in front of step 1) or step
4) after.
10. the production method of the foldable ultra-thin glass cover sheet according to claim 9 with rotatory polarization function,
Be characterized in that: the material of nanoscale WGP polaroid is nano silver in the step 3).
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| CN201910691187.7A CN110423020B (en) | 2019-07-29 | 2019-07-29 | Foldable ultrathin glass protective cover plate with circular polarization function and manufacturing method |
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| CN201910691187.7A CN110423020B (en) | 2019-07-29 | 2019-07-29 | Foldable ultrathin glass protective cover plate with circular polarization function and manufacturing method |
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Cited By (3)
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|---|---|---|---|---|
| CN110322794A (en) * | 2019-07-29 | 2019-10-11 | 恩利克（浙江）智能装备有限公司 | Foldable ultra-thin glass cover board and production method with rotatory polarization and touch screen function |
| CN112578586A (en) * | 2020-12-22 | 2021-03-30 | Oppo广东移动通信有限公司 | Assembly, display screen module, terminal equipment and manufacturing method of display screen module |
| CN112967603A (en) * | 2021-02-04 | 2021-06-15 | 武汉华星光电半导体显示技术有限公司 | Protection cover plate, flexible display panel and display device |
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