CN110407483A - A kind of foldable ultra-thin glass cover sheet and production method with touch screen function - Google Patents
A kind of foldable ultra-thin glass cover sheet and production method with touch screen function Download PDFInfo
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- CN110407483A CN110407483A CN201910691181.XA CN201910691181A CN110407483A CN 110407483 A CN110407483 A CN 110407483A CN 201910691181 A CN201910691181 A CN 201910691181A CN 110407483 A CN110407483 A CN 110407483A
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- thin glass
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- touch screen
- glass cover
- cover sheet
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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
-
- 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
- C03C17/38—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
-
- 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
- C03C17/42—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 of an organic material and at least one non-metal coating
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
-
- 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
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/23—Mixtures
- C03C2217/231—In2O3/SnO2
-
- 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
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/25—Metals
- C03C2217/251—Al, Cu, Mg or noble metals
- C03C2217/254—Noble metals
- C03C2217/256—Ag
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Printing Methods (AREA)
Abstract
The invention discloses a kind of foldable ultra-thin glass cover sheet with touch screen function, including ultra-thin glass, the ultra-thin glass is printed below ink frame, explosion-proof layer is coated with below ink frame, the explosion-proof layer is printed below touch line layer, thickness of the present invention is smaller, functional layer is covered with by the way of printing and coating, save optical cement, both the function of touch screen had been merged, eliminate again the thickness of optical cement and PET film be bonded process, so that the function and glass cover-plate of touch screen combine together, make the glass cover-plate more foldable with touch screen function, and without folding line.
Description
Technical field
It is more specifically to a kind of with the foldable of touch screen function the invention belongs to the folding display screen field of mobile phone
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 touch screen are also needed between plate and panel layer.Chinese patent 201920901725.6 is related to one
The folding glass cover-plate of kind, but it is not directed to the function of touch screen, traditional method touch screen is will first to touch on a pet film at present
It touches route to carry out, then be fitted on glass cover-plate or oled panel using optical cement, if encountering folding oled panel, this
Kind way directly increases the thickness of entire folding display screen, is unfavorable for screen folding, especially as Samsung Galaxy Fold hand
The screen of the infolding of machine (is folded outward screen mobile phone as Huawei Mate X, outside, the angle compared to infolding phone folded is opposite for screen
Greatly), especially high to screen folding requirement, thickness such as is increased with conventional touch screen way, not foldable, and touch screen is with glass
Glass cover board or oled panel are 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, it the present invention provides a kind of thickness is smaller, is covered with by the way of printing and coating
Functional layer, saves optical cement, has not only merged the function of touch screen, but eliminate the thickness of optical cement and PET film be bonded process,
So that the function and glass cover-plate of touch screen combine together, make the glass cover-plate more foldable with touch screen function, and without folding
Trace.
To achieve the above object, the present invention provides the following technical scheme that it is a kind of foldable ultra-thin with touch screen function
Glass cover sheet, including ultra-thin glass, the ultra-thin glass is printed below ink frame, is coated with below ink frame anti-
Quick-fried layer, the explosion-proof layer is printed below touch line layer.
The further touch line layer is that nano silver touches line layer.
The further touch line layer is that ITO touches line layer.
The further explosion-proof layer is transparent resin coating.
The further ink seal ring thickness is 6-8 microns.
The further transparent resin coating with a thickness of 30-60 microns.
The further ultra-thin glass is with a thickness of 30-100 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 touch screen function, includes the following steps,
1) anti-pollution layer is coated in the upper surface of ultra-thin glass；
2) 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；
3) lower surface of ink frame is coated with transparent resin coating, with a thickness of 30-60 microns；
4) nano silver route then is printed in the lower surface of transparent resin coating again, laser then is carried out to nano silver route
Dry etching finishing forms nano silver and touches line layer；Or use ITO, then ITO is first plated to the lower surface of transparent resin coating, then
ITO is etched to form touch line layer.
Compared with prior art, the beneficial effects of the present invention are:
1, touch layer is printed on glass cover-plate by the glass cover-plate that this programme provides by the way of nano silver printing,
Do not need optical cement to be adhered, that is, merged the function of touch screen, but eliminate the thickness of optical cement and PET film be bonded process,
So that the function and glass cover-plate of touch screen combine together, the bending angle of glass cover-plate is significantly reduced, and after bending
Touch layer 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；
4, the application substantially reduces folding angle without optical adhesive layer, no pet layer, for infolding screen folding angles
It is the smaller the better, without folding trace after having folded, do not influence display effect.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of intaglio plate printer device used in the present invention.
Appended drawing reference: 1, anti-pollution layer；2, ultra-thin glass；3, ink frame；4, explosion-proof layer；5, line layer is touched；51, it controls
Tool；52, bat printing roller；53, gravure cylinder；54, ink storehouse；55, ink roller；56, doctor.
Specific embodiment
Foldable ultra-thin glass cover sheet to the present invention with touch screen function and production method referring to Figures 1 and 2
Embodiment is described further.
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 touch screen function, including ultra-thin glass 2, the ultra-thin glass 2
It is printed below to have ink frame 3, explosion-proof layer 4 is coated with below ink frame 3, the explosion-proof layer 4 is printed below touch route
Layer 5.
The preferred touch line layer 5 is that nano silver touches line layer 5 or is that ITO touches line layer 5.
The preferred explosion-proof layer 4 is transparent resin coating.
Its production method is that thickness is selected to pass through in 30-100 microns of ultra-thin glass 2 in the lower surface of ultra-thin glass 2
Ink frame 3 required for the mode of intaglio printing is printed, 3 print thickness of ink frame is at 6-8 microns；
The lower surface of ink frame 3 is coated with transparent resin coating, with a thickness of 30-60 microns；
Then nano silver route is printed in the lower surface of transparent resin coating again, it is dry then to carry out laser to nano silver route
Finishing is carved, nano silver is formed and touches line layer 5；Or use ITO, then ITO is first plated to the lower surface of transparent resin coating, then right
ITO, which is etched to be formed, touches line layer 5.
Transparent resin coating has explosion-proof effect, it is preferable to use CPI, is the explosion-proof layer 4 of this cover sheet, thickness compared with
Small, translucency is good, makes cover sheet more foldable.
It does not need to be adhered using optical cement in the present embodiment, enables cover sheet that there is explosion prevention function, merge simultaneously
The function of touch screen, touch screen combine together with glass cover-plate, especially when folding, will not generate offset, avoid multiple
The phenomenon that folding line is generated after folding.
Ink frame 3 is for covering display screen display area external component, and in addition there are also shaded effects, and ink frame 3 can
To print the various border colors such as blue, gold, the depth of ink can also be realized by frame stencil design to reach line
Effect is managed, different shape can also be repeatedly printed and color reaches color and pattern effect, the ink frame 3 of different colours can
Mobile phone suitable for different colours is arranged in pairs or groups.
Ink frame 3 is the edge for being printed in ultra-thin glass 2, and practical when printing explosion-proof layer 4,4 a part of explosion-proof layer connects
Ink frame 3 is touched, another part contacts 2 surface of ultra-thin glass.
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.
Ink frame 3 and touch line layer 5 are printed using intaglio plate printer device in the present embodiment, as shown in Fig. 2, it is led
It to include ink storehouse 54, gravure cylinder 53, bat printing roller 52 and jig 51, wherein bat printing roller 52 is rubber roller.
For printing ink frame 3, ink is placed in ink storehouse, and ink roller 55, ink are additionally provided in ink storehouse
Roller 55 contradicts gravure cylinder 53, and the ink in 55 picks up ink storehouse of ink roller transfers them to the intaglio plate of gravure cylinder 53
Interior, gravure cylinder 53 is rotated along the direction a, and doctor 56 is provided with by gravure cylinder 53, by gravure cylinder 53 except in intaglio plate
Ink is wiped off, and gravure cylinder 53 rotates the printing ink transfer in intaglio plate to 52 surface of bat printing roller, bat printing roller 52 along the direction b,
Ultra-thin glass 2 is placed on jig 51 and moves along the direction c, and for ultra-thin glass 2 by passing through below bat printing roller 52, bat printing roller 52 will
Ink frame 3 is printed in 2 surface of ultra-thin glass, by printing repeatedly, makes 3 layers of ink frame to reach 6-8 microns, passes through this intaglio plate
Printer device, printing efficiency is high, and thickness is uniform, and thickness control is accurate.
Nano silver touch route mode of printing is identical as 3 mode of printing of ink frame, only the pattern template of gravure cylinder 53
It is different.Nano silver, which touches route, can be used the mode of silk-screen printing also generally to print.
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.
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 touch screen function, it is characterised in that: described super including ultra-thin glass
Thin glass is printed below ink frame, is coated with explosion-proof layer below ink frame, the explosion-proof layer is printed below touch line
Road floor.
2. the foldable ultra-thin glass cover sheet according to claim 1 with touch screen function, it is characterised in that: described
Touching line layer is that nano silver touches line layer.
3. the foldable ultra-thin glass cover sheet according to claim 1 with touch screen function, it is characterised in that: described
Touching line layer is that ITO touches line layer.
4. the foldable ultra-thin glass cover sheet according to claim 2 or 3 with touch screen function, it is characterised in that:
The explosion-proof layer is transparent resin coating.
5. the foldable ultra-thin glass cover sheet according to claim 4 with touch screen function, it is characterised in that: described
Ink seal ring thickness is 6-8 microns.
6. the foldable ultra-thin glass cover sheet according to claim 4 with touch screen function, it is characterised in that: described
Transparent resin coating with a thickness of 30-60 microns.
7. the foldable ultra-thin glass cover sheet according to claim 4 with touch screen function, it is characterised in that: described
Ultra-thin glass is with a thickness of 30-100 microns.
8. the foldable ultra-thin glass cover sheet according to claim 1 with touch screen function, it is characterised in that: described
Anti-pollution layer is provided with above ultra-thin glass.
9. a kind of production method of the foldable ultra-thin glass cover sheet with touch screen function as described in claim 1,
It is characterized in that, includes the 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 transparent resin coating, with a thickness of 30-60 microns；
3) nano silver route then is printed in the lower surface of transparent resin coating again, laser dry etching then is carried out to nano silver route
Finishing forms nano silver and touches line layer；Or use ITO, then ITO is first plated to the lower surface of transparent resin coating, then to ITO
It is etched to form touch line layer.
10. the production method of the foldable ultra-thin glass cover sheet according to claim 9 with touch screen function, special
Sign is: further including following steps, is coated with anti-pollution layer in the upper surface of ultra-thin glass, this step is placed in front of step 1) or step 3)
Afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691181.XA CN110407483A (en) | 2019-07-29 | 2019-07-29 | A kind of foldable ultra-thin glass cover sheet and production method with touch screen function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910691181.XA CN110407483A (en) | 2019-07-29 | 2019-07-29 | A kind of foldable ultra-thin glass cover sheet and production method with touch screen function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110407483A true CN110407483A (en) | 2019-11-05 |
Family
ID=68363926
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| CN201910691181.XA Pending CN110407483A (en) | 2019-07-29 | 2019-07-29 | A kind of foldable ultra-thin glass cover sheet and production method with touch screen function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111415599A (en) * | 2020-04-26 | 2020-07-14 | 恩利克（浙江）智能装备有限公司 | Foldable quantum dot light-color conversion membrane, manufacturing method thereof and display screen |
| CN111625142A (en) * | 2020-05-26 | 2020-09-04 | 业成科技（成都）有限公司 | Protection cover plate, touch control assembly, display screen and electronic equipment |
| WO2021128606A1 (en) * | 2019-12-25 | 2021-07-01 | 武汉华星光电半导体显示技术有限公司 | Oled display panel and manufacturing method |
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| CN106648274A (en) * | 2016-12-31 | 2017-05-10 | 江西省平波电子有限公司 | Capacitive touch screen cover plate and production process thereof |
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| CN207937978U (en) * | 2017-12-29 | 2018-10-02 | 信利光电股份有限公司 | A kind of flexibility touch panel and electronic equipment |
| CN109733061A (en) * | 2019-03-14 | 2019-05-10 | 恩利克（浙江）智能装备有限公司 | A kind of flexographic printing system and method |
| CN109933229A (en) * | 2017-12-15 | 2019-06-25 | 南昌欧菲光学技术有限公司 | Touch screen and its flexible cover |
| CN110014707A (en) * | 2019-04-30 | 2019-07-16 | 拓米(成都)应用技术研究院有限公司 | A kind of foldable ultra-thin glass cover board and preparation method thereof |
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| CN106648274A (en) * | 2016-12-31 | 2017-05-10 | 江西省平波电子有限公司 | Capacitive touch screen cover plate and production process thereof |
| CN107315499A (en) * | 2017-06-19 | 2017-11-03 | 昆山国显光电有限公司 | Flexible display apparatus and its manufacture method |
| CN109933229A (en) * | 2017-12-15 | 2019-06-25 | 南昌欧菲光学技术有限公司 | Touch screen and its flexible cover |
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| CN110014707A (en) * | 2019-04-30 | 2019-07-16 | 拓米(成都)应用技术研究院有限公司 | A kind of foldable ultra-thin glass cover board and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021128606A1 (en) * | 2019-12-25 | 2021-07-01 | 武汉华星光电半导体显示技术有限公司 | Oled display panel and manufacturing method |
| CN111415599A (en) * | 2020-04-26 | 2020-07-14 | 恩利克（浙江）智能装备有限公司 | Foldable quantum dot light-color conversion membrane, manufacturing method thereof and display screen |
| CN111625142A (en) * | 2020-05-26 | 2020-09-04 | 业成科技（成都）有限公司 | Protection cover plate, touch control assembly, display screen and electronic equipment |
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Application publication date: 20191105 |