CN219950874U - Mobile phone display screen toughening protective film beneficial to human safety and health - Google Patents
Mobile phone display screen toughening protective film beneficial to human safety and health Download PDFInfo
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- CN219950874U CN219950874U CN202320455311.1U CN202320455311U CN219950874U CN 219950874 U CN219950874 U CN 219950874U CN 202320455311 U CN202320455311 U CN 202320455311U CN 219950874 U CN219950874 U CN 219950874U
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- 239000010410 layer Substances 0.000 claims description 111
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Abstract
The utility model discloses a mobile phone display screen toughening protective film beneficial to human safety and health. Some of the light rays emitted by the mobile phone display screen are blue shortwave light rays harmful to human eyes; meanwhile, the mask is frequently contacted with human hands and faces, is stained with a large amount of sweat stains, and cannot avoid breeding a large amount of bacteria and even viruses. Therefore, a multilayer nano-scale thickness dielectric film stack with a proper structure is prepared on the toughened protection film, and the film layer which is in contact with air at the outermost side of the dielectric film stack is a titanium dioxide microcrystalline film layer or a film layer containing titanium dioxide microcrystals. The protective film disclosed by the utility model can protect the display screen of the mobile phone and prevent the display screen from being broken and scratched; on the other hand, the spectrum displayed by the mobile phone is regulated and controlled, blue light emission harmful to human eyes is weakened, the transmittance of other visible rays is improved, the glare effect is effectively reduced, and the 'black screen' effect of the display screen is realized; meanwhile, the product has the effects of resisting bacteria, killing viruses and self-cleaning, and has important significance on the safety and health of mobile phone users.
Description
Technical Field
The utility model belongs to the technical field of photoelectricity, and particularly relates to a mobile phone display screen toughening protective film beneficial to human safety and health.
Background
The mobile phone is an electronic device indispensable in modern life. Through the mobile phone, people can conveniently and rapidly carry out shopping, entertainment, social interaction and network office, so that the mobile phone is a 'standard' for modern life. Especially in the new epidemic situation, the intelligent mobile phone is not provided, and the intelligent mobile phone is almost a kind of pace. However, the hidden trouble brought by the living without mobile phone can not be ignored: first, the use of a mobile phone for a long time causes unavoidable damage to human eyes. Experts point out that poor blue light energy is extremely high, eye structures are damaged, vision is reduced or blindness, cataract and maculopathy can be caused, blue light rays can inhibit melanin fading secretion, the blue light energy is one of important hormones affecting sleep, and the quality of sleep is low or even the sleep is difficult to fall into sleep when a user plays a mobile phone before sleeping. Secondly, the surface of the mobile phone which is used for a long time but is not cleaned properly has big germ virus. The network article indicates that bacteria on the surface of the mobile phone can reach 2000 diversity, and the bacterial count of one quarter of the mobile phones exceeds the standard value by 10 times. The surface of the mobile phone is covered with escherichia coli, streptococcus golden yellow, salmonella, cold virus and the like. When the finger touches the mobile phone screen, the pathogenic bacteria in the mobile phone are infected, and then enter the body through eating or rubbing eyes and the like, so that the human body is finally infected or diseased. Finally, in some cases the cell phone also acts as an infectious agent for the pathogenic viruses. If a person needs to take out a smart phone to scan a place code and confirm a green code in a public place in the fight against new coronaries in the whole society, if a certain case is in the environment of a code scanner because the mobile phone scans the code, the later hidden danger of cross infection can be caused by the fact that the mobile phone scans the code for a second time. Therefore, safety and health problems related to mobile phones are increasingly important.
In fact, solutions have been proposed for the safety and health problems of the mobile phone surface. Searching the Chinese patent database shows that up to 70 patent technologies (including utility model patents and utility models) are related to blue light prevention and antibacterial protection of mobile phone display screens. Analysis of these patents shows that the prior art is realized by sticking polymer soft films or coatings of various materials on the display screen of the mobile phone. For example, patent number CN215975637U discloses an antibacterial blue light preventing film, which comprises a bottom film layer and a protective layer, wherein the blue light preventing layer comprises a first blue light blocking layer, a first violet blocking layer, a second blue light blocking layer and a second violet blocking layer. The antibacterial blue light preventing film nano silver layer is a nano metal silver simple substance. The principle is that blue and violet light is blocked from reaching human eyes by a film layer with absorption characteristics to blue light and violet light, and the sterilization function is realized by nano silver simple substance. In practice, the absorbing material can indeed absorb part of the blue-violet light, but is limited by the material characteristics and thickness, so that the absorption spectrum characteristics cannot be accurately regulated and controlled, and the visual effect of the mobile phone is affected. The nano silver simple substance has no sterilization effect, and only silver atoms are contacted with water to form silver ions, so that the sterilization function can be exerted, but nano silver particles embedded in organic matters are difficult to ionize to form silver ions, and the nano silver particles migrate to the surface to react with bacterial cells for sterilization, so that the sterilization function is greatly limited. In addition, the adoption of the nano silver simple substance material inevitably reduces the luminous brightness of the mobile phone screen due to the light absorption characteristic of silver, and influences the visual effect of mobile phone display. In another patent of CN217265525U, the inventor proposes a curved screen mobile phone protection film. The preparation method comprises the steps of firstly coating an antibacterial coating on the upper surface of a base film layer, coating a film by using an upper protective layer, then coating a dual-curing coating on the lower surface of the base film layer, coating a silica gel pressure-sensitive adhesive layer on the lower surface of the dual-curing coating, and then attaching a release film layer on the lower surface of the silica gel pressure-sensitive adhesive layer. As the antibacterial coating and the outermost layer are separated by the PU upper protective layer, migration of antibacterial ions is severely limited, and actual antibacterial effect is influenced.
In all the existing solutions, a common defect is that a soft film of an organic polymer is adopted as a base material, and the base material has low hardness and is easy to damage and scratch; the soft film cannot play a role of preventing screen from breaking and falling; the migration of nano silver ions and the like is difficult, the sterilization effect is greatly reduced, and meanwhile, the adopted absorption type material has serious influence on the spectrum of the mobile phone display screen, so that the visual effect is reduced. Therefore, new materials or technologies are needed to meet the demands of mobile phone users, and one simple and reliable scheme is the microcrystalline nano titanium dioxide technology.
The photocatalysis principle of titanium dioxide is utilized to realize the sterilization and disinfection effect of the liquid reagent or the solid surface, which is not unfamiliar in practice. According to different needs in industry, nano TiO 2 Can be prepared into powder or film material. For example, nano TiO 2 The film is coated on the surface of the material to prepare antibacterial material, such as antibacterial ceramic, antibacterial stainless steel, etc., and nano TiO is prepared 2 The powder can be mixed with other materials to prepare antibacterial plastics, antibacterial coatings, antibacterial fibers and the like. Still others have proposed self-cleaning glass for use in buildings. Even some researchers have studied the inactivation properties of nano-titania on the pathogens of new coronaviruses after they start to epidemic. However, all the prior paper researches and patents are not related to the spectrum of the display screen in the visible light region, namely the visible spectrum cannot be regulated and controlled, and meanwhile, the nano coating is soft material and cannot be applied to the display screen of the mobile phone which needs high hardness and friction resistance. Even the titanium dioxide self-cleaning glass utilizing the sputtering technology cannot be directly applied to the field of mobile phone display screens due to the fact that the actual reflectivity is too high.
Disclosure of Invention
The utility model aims to provide a mobile phone display screen toughening protective film beneficial to human safety and health so as to solve the problems in the background technology, and on one hand, the mobile phone display screen can be protected and prevented from being broken and scratched; on the other hand, the spectrum of the mobile phone light source is regulated and controlled, blue light emission harmful to human eyes is weakened, the transmittance of other visible rays is improved, and the glare effect is reduced; at the same time, the utility model has the effects of antibiosis, disinfection and self-cleaning.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a mobile phone display screen tempering protection film beneficial to human safety and health, includes the flat tempered glass that can attach on mobile phone display screen, flat tempered glass surface is provided with the dielectric film stack of the multilayer nanometer level thickness of suitable structure, dielectric film stack outside rete is titanium dioxide microcrystalline rete or contains any one of the rete of titanium dioxide microcrystalline, and dielectric film stack comprises different refracting index, dielectric film of different thickness, and dielectric film stack includes two kinds or more than two kinds of low refracting index layer, medium refracting index layer and high refracting index layer;
the flat toughened glass is close to one side of the mobile phone, and is sequentially provided with an optical AB glue layer, a PET film layer, a pressure-sensitive adhesive layer and a release film layer.
Preferably, the flat tempered glass material is medium alumina silicate glass, high alumina silicate glass, borosilicate glass, quartz glass or other high softening point glass, the softening point temperature is 600 ℃ and must not be lower than 600 ℃, and the thickness of the tempered glass is 0.1-0.3mm.
Preferably, the low refractive index layer of the dielectric film stack is any one of silicon dioxide, magnesium fluoride, ytterbium fluoride, yttrium fluoride, dysprosium fluoride, barium fluoride and cerium fluoride.
Preferably, the medium refractive index layer of the dielectric film stack is any one of silicon monoxide and aluminum oxide.
Preferably, the high refractive index layer of the dielectric film stack is selected from titanium dioxide, hafnium oxide, zirconium oxide, niobium oxide, tantalum oxide, magnesium oxide, zinc oxide, tungsten oxide, vanadium oxide or a mixture thereof.
Preferably, at least one titanium dioxide film layer or a film layer containing titanium dioxide of the low refractive index layer and the high refractive index layer is far away from the mobile phone and is in contact with air, the microstructure of the titanium dioxide film layer material is an anatase microcrystalline structure, and the grain size is 3-50nm.
Preferably, the dielectric film stack is a single film stack and is configured at one side of the toughened film far away from the mobile phone.
Preferably, the dielectric film stack is two sub film stacks which are respectively arranged on two sides of the toughened glass, but at least one titanium dioxide microcrystalline film layer or film layer containing titanium dioxide microcrystals is arranged on the outermost side far away from the mobile phone and in contact with air.
Preferably, the thickness of the optical AB glue layer is 10-30um, the thickness of the PET film layer is 50-150um, the thickness of the pressure-sensitive adhesive layer is 10-30um, and the thickness of the release film layer is 50-150um.
The utility model has the technical effects and advantages that: compared with the prior art, the mobile phone display screen toughening protective film beneficial to human safety and health has the following advantages:
1. the utility model adopts a medium interference type membrane stack technology, is a hard membrane technology, is friction-resistant, and is attractive and durable. The harmful blue and violet light is isolated through the dielectric film stack, the transmittance of a useful spectrum is improved, the glare effect on the surface of a screen is effectively reduced, the black screen effect of the display screen is realized, the useless power consumption of the display screen of the mobile phone is reduced, and the mobile phone is simple and practical;
2. the disinfection mechanism provided by the utility model is photocatalytic titanium dioxide antibacterial and disinfectant, and can be effectively used under indoor weak light, outdoor sunlight irradiation and ultraviolet lamp, and spectral antibacterial and disinfectant can be realized. Besides being effective on bacteria such as escherichia coli, staphylococcus aureus, bacillus subtilis, microzyme, candida albicans and other broad-spectrum bacteria fungi, the novel anti-influenza virus disinfectant has good disinfecting effects on influenza viruses, hepatitis B viruses and even novel coronaviruses;
3. in the method provided by the utility model, titanium dioxide only plays a catalytic role, and the material is not consumed or lost after long-term use, so that the stability of the antibacterial and antivirus effects can be ensured;
4. according to the method provided by the utility model, other organic matters such as sweat stains can be rapidly decomposed and reacted under the irradiation of ultraviolet light besides the antibacterial and antivirus functions, so that the self-cleaning effect of the display screen is maintained;
5. heavy metal silver and other chemicals are not required to be applied in the implementation process, and the process is environment-friendly.
Drawings
Fig. 1 is a schematic structural diagram of a mobile phone display screen toughening protective film of the utility model;
FIG. 2 is a spectrum diagram of the design of the film system structure of the embodiment 1 of the present utility model;
FIG. 3 is a spectrum diagram of the design of the film system of the embodiment 2 of the present utility model;
FIG. 4 is a spectrum of the design of the film system of example 3 of the present utility model.
In the figure: 1. flat tempered glass; 2. a dielectric film stack; 3. an optical AB glue layer; 4. a PET film layer; 5. a pressure-sensitive adhesive layer; 6. and (3) a release film layer.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a mobile phone display screen toughening protective film beneficial to human safety and health, which comprises flat toughened glass 1 capable of being attached to a mobile phone display screen, wherein the surface of the flat toughened glass 1 is provided with a multilayer nanoscale thickness dielectric film stack 2 with a proper structure, the outer side film layer of the dielectric film stack 2 is any one of film layers containing titanium dioxide microcrystals, the dielectric film stack 2 consists of dielectric films with different refractive indexes and different thicknesses, and the dielectric film stack 2 comprises at least two of a low refractive index layer, a medium refractive index layer and a high refractive index layer;
the flat toughened glass 1 is close to one side of the mobile phone, and is sequentially provided with an optical AB glue layer 3, a PET film layer 4, a pressure-sensitive adhesive layer 5 and a release film layer 6.
The flat toughened glass 1 is made of medium-alumina silicate glass, high-alumina silicate glass, borosilicate glass, quartz glass or other high-softening-point glass, the softening point temperature is 600 ℃ and is not lower than 600 ℃, and the thickness of the toughened film is 0.1-0.3mm. The low refractive index layer and the high refractive index layer are provided with at least one layer of titanium dioxide microcrystal film layer or film layer containing titanium dioxide microcrystal, wherein the titanium dioxide microcrystal film layer or film layer is far away from the mobile phone and is in contact with air, the microstructure of the titanium dioxide film layer material is an anatase microcrystal structure, and the grain size is 3-50nm.
The dielectric film stack 2 is a single film stack and is configured at one side of the toughened film far away from the mobile phone.
The low refractive index layer of the dielectric film stack 2 is silicon dioxide SiO 2 MgF of magnesium fluoride 2 Ytterbium fluoride YbF 3 YF yttrium fluoride 3 Dysprosium fluoride DyF 3 Barium fluoride BaF 2 Cerium fluoride CeF 2 Any one of the following. The medium refractive index layer of the dielectric film stack 2 is silicon monoxide SiO and aluminum oxide Al 2 O 3 Any one of the following. The high refractive index layer of the dielectric film stack 2 is made of titanium dioxide TiO 2 Hafnium oxide HfO 2 Zirconium oxide ZrO 2 Niobium oxide Nb 2 O 5 Tantalum oxide Ta 2 O 5 Magnesium oxide MgO, zinc oxide ZnO, tungsten oxide WO 3 Vanadium oxide V 2 O 5 Or a mixture thereof.
The dielectric film stack 2 may be two sub-film stacks, which are respectively configured on two sides of the toughened glass, but at least one titanium dioxide film layer or a film layer containing titanium dioxide is positioned on the outermost side far away from the mobile phone and in contact with air. The dielectric film stack 2 can reasonably regulate and control the LED luminous spectrum of the mobile phone, remarkably reduce the high-energy blue and purple luminous flux smaller than 450nm, and achieve the reasonable range of human eye protection. And in other ranges of visible light larger than 450nm, the transmittance of the protective film is obviously improved relative to that of the toughened glass substrate, the glare effect caused by the glass substrate is reduced, and the discomfort of eyes is reduced.
Preferably, the thickness of the optical AB glue layer 3 is 10-30um, the thickness of the PET film layer 4 is 50-150um, the thickness of the pressure-sensitive adhesive layer 5 is 10-30um, and the thickness of the release film layer 6 is 50-150um
Example 1
The structure of the toughening protective film of the mobile phone display screen is shown in figure 1; the base body of the protective film is 0.15mm thick aluminosilicate glass, and the softening temperature is 920 ℃; and coating the cut and cleaned glass in a vacuum chamber. The plating is carried out by adopting an ion-assisted deposition (IAD) technology; the glass body temperature is 300 ℃, and the film forming vacuum degree is 2 multiplied by 10 -3 Pa, an oxygen flow of 50sccm, an acceleration voltage of 500-600V of an ion source assisted deposition system, an ion flow of 1200mA, and a structure of the multilayer film are shown in Table 1 below.
The toughening protection film is close to one side of the mobile phone, and is sequentially provided with an optical AB glue layer 3, a PET film layer 4, a pressure-sensitive adhesive layer 5 and a release film layer 6. The thickness of the adhesive is 10-30um for AB glue layer, 50-150um for PET film layer, 10-30um for pressure sensitive adhesive layer and 50-150um for release film layer.
| Material | Thickness nm |
| SUB | GlASS |
| TiO 2 | 7.8 |
| Al 2 O 3 | 134.04 |
| SiO 2 | 100.93 |
| Al 2 O 3 | 89.51 |
| SiO 2 | 195.76 |
| TiO 2 | 121.41 |
Table 1: the structure and material thickness of the multilayer dielectric film of example 1.
Example 2
In the embodiment, the structure of the toughened protection film of the mobile phone display screen is also as an example in fig. 1, and the difference is that: the protective film has a base body of borosilicate glass with the thickness of 0.15mm and the softening temperature of 850 ℃. And cutting and cleaning the glass, and coating the glass in a vacuum chamber. The film plating is carried out by adopting an intermediate frequency magnetron sputtering method. The glass matrix temperature is 300 ℃ and the background vacuum degree is 10 -2 Pa, oxygen and argon are filled, the air pressure ratio is 1:2, so that the vacuum degree in the film coating chamber is kept at 3Pa, the sputtering voltage is-600V, the sputtering current is 300mA, and the structure of the multilayer film is shown in the following table 2.
The toughening protection film is close to one side of the mobile phone, and is sequentially provided with an optical AB glue layer 3, a PET film layer 4, a pressure-sensitive adhesive layer 5 and a release film layer 6. The thickness of the adhesive is 10-30um for AB glue layer, 50-150um for PET film layer, 10-30um for pressure sensitive adhesive layer and 50-150um for release film layer.
| Material | Thickness nm |
| SUB | GlASS |
| TiO 2 | 17.67 |
| SiO 2 | 32.89 |
| TiO 2 | 81.25 |
| SiO 2 | 26.32 |
| TiO 2 | 38.05 |
| SiO 2 | 62.37 |
| TiO 2 | 38.05 |
| SiO 2 | 62.37 |
| TiO 2 | 38.05 |
| SiO 2 | 62.37 |
| TiO 2 | 38.05 |
| SiO 2 | 62.37 |
| TiO 2 | 38.05 |
| SiO 2 | 21.59 |
| TiO 2 | 88.06 |
| SiO 2 | 51.78 |
| TiO 2 | 17.55 |
Table 2 the structure and material thickness of the multilayer dielectric film of example 2.
Example 3
In another embodiment, the structure of the toughened protection film of the mobile phone display screen is as shown in fig. 1. The base body of the protective film is 0.1mm thick aluminosilicate glass, and the softening temperature is 920 ℃. The coating mode can be referred to any of the previous embodiments, but the multi-layer dielectric film stacks are distributed on two sides of the toughened glass, and the structure is shown in the following table 3.
The toughening protection film is close to one side of the mobile phone, and is sequentially provided with an optical AB glue layer 3, a PET film layer 4, a pressure-sensitive adhesive layer 5 and a release film layer 6. The thickness of the adhesive is 10-30um for AB glue layer, 50-150um for PET film layer, 10-30um for pressure sensitive adhesive layer and 50-150um for release film layer.
Table 3 the structure and material thickness of the multilayer dielectric film of example 3.
Antibacterial measured results of examples:
to examine the effectiveness of the antibacterial property of the present utility model, the preparation of the object of example 2 was performed to examine the antibacterial property. According to the detection standard of GB/T23763-2009 'evaluation of antibacterial property of photocatalytic antibacterial material and product', according to the national standard requirement, the illumination intensity of ultraviolet black light used in the detection test is 0.1mW/cm 2 The device is used for simulating the sun illumination state of an office desk at a position 1.5m away from a window indoors. According to the national standard, 3 standard blank control samples are prepared, 3 photocatalytic samples are placed under the bright condition, and the other 3 standard samples are preparedThe quasi-blank control and 3 photocatalytic samples were placed under dark conditions. The price of the cultured strain under the bright condition and the dark condition is controlled to be 35+/-1 ℃, the relative humidity is not lower than 85%, and the culturing time is 8-24 hours.
Table 4 analyzes the detection results.
After the cut glass protective film is cleaned, chemical toughening treatment is carried out, microcracks on the surface of the glass are eliminated, the stress is reduced, and the anti-falling, anti-crushing and scratch-resistant properties of the glass are improved. The cleaning, purifying and tempering treatment are all general techniques in industry;
the toughened glass protective film is put into a vacuum optical coating machine to prepare a multilayer nano-scale thickness dielectric film stack with a proper structure, and the dielectric film stack is basically characterized in that the film layer which is in contact with air at the outermost side is a titanium dioxide microcrystalline film layer or a film layer containing titanium dioxide microcrystals.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (4)
1. The utility model provides a to healthy beneficial cell-phone display screen tempering protection film of human safety which characterized in that: the mobile phone display screen comprises flat tempered glass (1) which can be attached to a mobile phone display screen, wherein a multi-layer nanoscale thickness dielectric film stack (2) with a proper structure is arranged on the surface of the flat tempered glass (1);
the flat toughened glass (1) is provided with an optical AB glue layer (3), a PET film layer (4), a pressure-sensitive adhesive layer (5) and a release film layer (6) in sequence at one side close to the mobile phone;
the medium film stack (2) is characterized in that a film layer far away from the mobile phone is a titanium dioxide microcrystalline film layer, and the medium film stack (2) comprises at least two of a low refractive index layer, a medium refractive index layer and a high refractive index layer;
and at least one titanium dioxide film layer of the low refractive index layer and the high refractive index layer is far away from the mobile phone and is in contact with air.
2. The mobile phone display screen tempering protective film beneficial to human safety and health according to claim 1, wherein the mobile phone display screen tempering protective film is characterized in that: the dielectric film stack (2) is arranged as a single film stack and is configured at one side of the toughened film far away from the mobile phone.
3. The mobile phone display screen tempering protective film beneficial to human safety and health according to claim 1, wherein the mobile phone display screen tempering protective film is characterized in that: the dielectric film stacks (2) are two sub film stacks which are respectively arranged on two sides of the toughened glass, and at least one titanium dioxide film layer is positioned on one side far away from the mobile phone and is in contact with air.
4. The mobile phone display screen tempering protective film beneficial to human safety and health according to claim 1, wherein the mobile phone display screen tempering protective film is characterized in that: the thickness of the optical AB glue layer (3) is 10-30um, the thickness of the PET film layer (4) is 50-150um, the thickness of the pressure-sensitive adhesive layer (5) is 10-30um, and the thickness of the release film layer (6) is 50-150um.
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| CN202320455311.1U CN219950874U (en) | 2023-03-12 | 2023-03-12 | Mobile phone display screen toughening protective film beneficial to human safety and health |
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