TWI719362B - Device for anti-blue-light and manufacturing method thereof - Google Patents

Abstract

The present application discloses a device for anti-blue-light and a manufacturing method thereof. The device is obtained by a copolymerization of a substrate material and at least one compound having an anti-blue-light property; wherein the compound having the anti-blue-light property has a general formula shown below:

, wherein R1 is

or

; R2 is hydroxyl or

Description

Device for filtering blue light and preparation method thereof

This application relates to the technical field of optical equipment, in particular to a device for filtering blue light and a preparation method.

With the advancement of technology, many electronic products that emit near ultraviolet blue light have been developed in recent years, such as liquid crystal displays and mobile phone screens. Blue light in this band has extremely high energy and can penetrate the lens of the user's eye and reach the retina. If the user uses such electronic products for a long time, it will cause macular degeneration in the retina and cause irreversible damage to the user's vision.

In order to reduce or avoid damage caused by blue light, there are many blue light filtering devices on the market, for example, screen protector films and glasses that filter blue light.

The inventors of the present application have discovered during long-term research that most of the blue light filtering devices currently on the market block blue light by adding substances with blue light filtering properties to the substrate of the device. Such devices are prone to long-term use or storage environments. As a result, the substances with the ability to filter blue light fall off, thereby reducing the ability of the device to block blue light.

The main technical problem solved by this application is to provide a blue light filtering device and a preparation method thereof, which can improve the stability of the blue light filtering device.

， 其中，R1為

或

；R2為羥基或

；R3為氫或甲基；R4為氫或甲氧基；R5為氫或甲氧基。In order to solve the above technical problems, a technical solution adopted in this application is to provide a blue light filtering device, which is obtained by copolymerization of a substrate and at least one compound with blue light filtering performance; wherein, the blue light filtering performance The compound has the following general formula:

, Where R1 is

or

；R2 is hydroxyl or

; R3 is hydrogen or methyl; R4 is hydrogen or methoxy; R5 is hydrogen or methoxy.

In order to solve the above technical problems, another technical solution adopted in this application is to provide a method for preparing a blue light filtering device, the method comprising:

Uniformly mixing the substrate and at least one compound with the ability to filter blue light to form a first mixture;

Placing the first mixture in a forming mold of the device for filtering blue light, and carrying out a copolymerization reaction between the substrate and the compound;

， 其中，R1為

或

；R2為羥基或

；R3為氫或甲基；R4為氫或甲氧基；R5為氫或甲氧基。After the copolymerization reaction is completed, the blue light filtering device can be obtained by peeling off the forming mold; wherein, the blue light filtering performance compound has the following general formula:

, Where R1 is

or

；R2 is hydroxyl or

; R3 is hydrogen or methyl; R4 is hydrogen or methoxy; R5 is hydrogen or methoxy.

The beneficial effect of this application is that, different from the state of the art, the compound with the ability to filter blue light provided by this application has an unsaturated C=C double bond. When it is used in a device for filtering blue light, it can be combined with the base of the device. The material undergoes a copolymerization reaction, so that the compound with the ability to filter blue light is stably retained on the device, thereby effectively improving the continuity and stability of the device for filtering blue light.

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The device for filtering blue light provided in the present application is obtained by copolymerization of a substrate and at least one compound having the performance of filtering blue light. The device for filtering blue light can be a polarizing film, a brightness enhancement film, a diffusion film, a light filter film, as well as various protective films, explosion-proof films, liquid crystal display screens, protective glasses, and the like.

， 該通式中R1為

或

；R2為羥基（-OH）或

；R3為氫（-H）或甲基（-CH₃ ）；R4為氫（-H）或甲氧基（-OCH₃ ）；R5為氫（-H）或甲氧基（-OCH₃ ），上述R1和R2中標「*」位置代表連結位置。Specifically, the general formula of the compound with the ability to filter blue light in this application is as follows:

, Where R1 is

or

; R2 is hydroxyl (-OH) or

; R3 is hydrogen (-H) or methyl (-CH ₃ ); R4 is hydrogen (-H) or methoxy (-OCH ₃ ); R5 is hydrogen (-H) or methoxy (-OCH ₃ ) , The position marked with "*" in R1 and R2 above represents the connection position.

； 化合物2：

； 化合物3：

； 化合物4：

； 化合物5：

。In an application scenario, the chemical structural formula of the above-mentioned compound with blue light filtering performance includes any of the following. Of course, in other embodiments, the structural formula of the above-mentioned compound can also be other compounds that meet the above-mentioned general formula, and this application will not make this limited. Compound 1:

; Compound 2:

; Compound 3:

; Compound 4:

; Compound 5:

.

In an application scenario, the mass of the aforementioned at least one compound with blue light filtering performance accounts for 0.25%-3.00% of the total mass of the substrate and the compound, such as 0.25%, 0.50%, 1.00%, 2.00%, 3.00%, etc.

In another application scenario, the substrate contains unsaturated bonds, such as C=C, etc., and the unsaturated bonds undergo a copolymerization reaction with C=C in the above-mentioned blue-light-filtering compounds, thereby fixing the blue-light-filtering compounds On the substrate. The aforementioned substrate includes at least one of a hydrophilic substance, a non-hydrophilic substance, a crosslinking agent, and an initiator.

For example, hydrophilic substances include 2-hydroxyethyl methacrylate HEMA, MMA methacrylate, AA acrylic acid, N-vinylpyrrolidone NVP, N,N'-dimethylacrylamide DMAA, glycidyl methacrylate At least one of ester GMA and DEAEMA. In other application scenarios, the hydrophilic substance may also be other, which is not limited in this application.

Non-hydrophilic substances include silicon groups, non-hydrophilic substances include (3-methacryloxy-2-hydroxypropoxy) propyl bis (trimethylsiloxy) methyl SIGMMA, methacrylic acid At least one of oxypropyl tris(trimethylsiloxyalkyl) silane TRIS and polydimethylsiloxane PDMS. In other application scenarios, the non-hydrophilic substance can also be other, which is not limited in this application .

Crosslinking agents include ethylene glycol dimethacrylate EGDMA, triethylene glycol dimethacrylate TrEGDMA, tetraethylene glycol dimethacrylate TEGDMA, polyethylene glycol dimethacrylate PEGDMA, propylene end groups At least one of ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer DBE-U22 and trimethylolpropane trimethacrylate TMPTMA. In other application scenarios, the crosslinking agent can also be Others, this application does not limit this.

The initiator includes a thermal initiator or a photoinitiator, and the thermal initiator includes at least one of 2,2'-azobisisobutyronitrile AIBN, azobisisoheptonitrile ADVN, and benzyl peroxide BPO, in other applications In the scenario, the thermal initiator can also be other, which is not limited in this application; the photoinitiator includes phenylbis(2,4,6-trimethylbenzyl)-phosphine oxide (trade name: Irgacure 819) , At least one of 2-hydroxy-2-methyl-1-phenyl-1-acetone (trade name: Darocur 1173). In other application scenarios, the photoinitiator can also be other, which is not limited in this application .

Please refer to FIG. 1. FIG. 1 is a schematic flowchart of an embodiment of a method for preparing a blue light filtering device according to the present application. The method includes:

S101: Mix the substrate and at least one compound with the ability to filter blue light uniformly to form a first mixture; specifically, the substrate and the compound with the ability to filter blue light can refer to the relevant content in the above embodiments, and will not be repeated here. .

S102: Place the first mixture in a forming mold of a device for filtering blue light, and carry out a copolymerization reaction between the base material and the compound; specifically, the forming mold is a mold made in proportion according to the shape and structure of the actual object. In some cases, after the above-mentioned base material is mixed with a compound having the ability to filter blue light, some impurities may be mixed therein. Therefore, before this step S102, it further includes filtering the first mixture prepared in step S101.

S103: After the copolymerization reaction is completed, a device for filtering blue light can be obtained by peeling off the forming mold.

The application will be further illustrated by 58 specific embodiments below. For the convenience of description, the raw material units used in the preparation of the blue light filtering device in the following embodiments are calculated in grams (g). In other embodiments, it can be scaled up or down according to actual conditions. The subsequent evaluation of the performance of the blue light filtering device is based on the same test conditions and evaluation criteria.

。A. First, provide compounds 1 to 5 with blue light filtering performance. The specific structural formulas can be found in the above-mentioned examples and comparative compounds. The structural formula of the comparative compound is shown below. The comparative compound is a traditional blue light filtering performance. Compound. Comparative compound:

.

B. Provide Example 1-29: Compounds 1-5 and comparative compounds of a certain quality were mixed with the base material and stirred uniformly to form a first mixture, wherein the base material specifically includes 2-hydroxyethyl methacrylate HEMA, MAA methacrylate, ethylene glycol dimethacrylate EGDMA, 2,2'-azobisisobutyronitrile AIBN, the specific quality of each component in each embodiment can be seen in Table 1 below; filter the above-mentioned first mixture Then, it is placed in the forming mold of the blue light filtering device, and the copolymerization reaction is carried out; after the copolymerization reaction is completed, it is peeled off from the forming mold to obtain the blue light filtering device corresponding to Examples 1-29.

[Table 1] The quality table of each component of Example 1-29

C. Examples 30-58 are provided: a certain mass of compound 1-5 and a comparative compound are respectively mixed with the substrate and stirred uniformly to form a first mixture, wherein the substrate specifically includes (3-methacryloyloxy- 2-hydroxypropoxy)propyl bis(trimethylsiloxy)methyl SiGMA, 2-hydroxyethyl methacrylate HEMA, N-vinylpyrrolidone NVP, propylene-terminated ethylene oxide dimethylsiloxane Alkyl-ethylene oxide ABA block copolymer DBE-U22, 2,2'-azobisisobutyronitrile AIBN, the specific quality of each component in each embodiment can be seen in Table 2 below; after filtering the above-mentioned first mixture , Placed in the forming mold of the blue light filtering device, and proceeded with the copolymerization reaction; after the copolymerization reaction was completed, peeled off from the forming mold to obtain the blue light filtering device corresponding to Examples 30-58.

[Table 2] Quality table of each component of Examples 30-58

D. Analyze the blue light blocking ability of the blue light filtering device provided in the above embodiments 1-58, specifically: using an ultraviolet-visible light spectrometer (model: Bio Mate 3S) to measure the devices provided in the above embodiments 1-58 In the blue light transmittance in the wavelength range of 380nm-460nm, the blue light blocking rate is obtained according to the obtained blue light transmittance, where the sum of blue light transmittance and blue light blocking rate is 100%, and the results are as follows: 4 shown.

[Table 3] Blue light transmittance and blue light blocking rate of the devices provided in Examples 1-29

[Table 4] Blue light transmittance and blue light blocking rate of the devices provided in Examples 30-58

E. Simulate the storage environment of the blue light filtering device, and analyze the continuity and stability of the blue light blocking ability of the blue light filtering device provided in the foregoing Examples 1-58; specifically, the device prepared in Examples 1-29 Immerse in a poloxamer aqueous solution to simulate the storage environment of the device; immerse the devices prepared in Examples 30-58 in a 75% alcohol aqueous solution to simulate the storage environment of the device; use an ultraviolet-visible light spectrometer (model: Bio Mate 3S) Measure the blue light transmittance of the above-mentioned device after immersion for 0 hour, 4 hours, 8 hours, 12 hours and 24 hours in the wavelength range of 380nm-460nm, to observe whether the compound with the ability to filter blue light comes from the device The phenomenon of falling into the aqueous solution, and the results are shown in Table 5 and Table 6 below.

[Table 5] Stability data of the blue light blocking ability of the devices provided in Examples 1-29

[Table 6] Stability data of the blue light blocking ability of the devices provided in Examples 30-58

From Table 3 and Table 4 above, it can be found that the device for filtering blue light provided by this application (Examples 5-29, Examples 34-58), under the same conditions, added compounds with blue light filtering performance ( The greater the amount of compound 1-5), the greater the blue light blocking rate of the device, that is, the better the blue light blocking ability.

In addition, the structure that blocks blue light in compound 1-5 and the comparison compound is a structure formed between two benzene rings and two benzene rings. Under the condition of adding the same mass of compound 1-5 and the comparison compound, compound 1 The structure of -5 that can block blue light accounts for less than the comparative compound, so the blue light blocking rate of the device obtained by adding the same mass of compound 1-5 is lower than the blue light blocking rate of the device obtained by adding the comparative compound.

It can be found from Tables 5 and 6 that for the same device, the longer the immersion time, the lower the blue light transmittance of the solution, that is, the higher the blue blocking rate of the solution, the better the solution has the ability to block blue light. The more compounds, the more blue-blocking compounds will be released from the device.

Although it is found from Table 3 and Table 4 that the device prepared by using the comparative compound (Examples 1-4, 30-33), its initial ability to block blue light is better than the device prepared by compound 1-5 (Example 5 -29,34-58), but from Tables 5 and 6, it is found that the device made with the comparative compound (Examples 1-4, 30-33) has a better blue light blocking effect during long-term use and storage. Shows a substantial decline. The device made with compound 1-5 (Examples 5-29, 34-58), although the initial blue light filtering efficiency is not as good as the device made with the comparative compound (Examples 1-4, 30-33), but in In terms of the continuity and stability of the blue light filtering ability, the device performed better than the device made with the comparative compound (Examples 1-4, 30-33).

This is because the comparative compound cannot form a chemical bond with the substrate. The compound 1-5 provided in this application has an unsaturated C=C introduced into its structural formula, which can polymerize with C=C in the substrate (the comparative compound cannot polymerize with the substrate), thereby reducing The compound with the ability to filter blue light is stably retained on the device, thereby effectively improving the continuity and stability of the device for filtering blue light.

The above are only implementations of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made using the content of the description and drawings of this application, or directly or indirectly applied to other related technical fields, The same reasoning is included in the scope of patent protection of this application.

S101~S103‧‧‧Step

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work. Among them: FIG. 1 is a schematic flow chart of an embodiment of the method for preparing the blue light filtering device of the present application.

S101~S103‧‧‧Step

Claims (10)

A device for filtering blue light, the device is obtained by copolymerization of a substrate and at least one compound having the performance of filtering blue light; wherein, the compound having the performance of filtering blue light has the following general formula:

, Where R1 is

or

；R2 is hydroxyl or

; R3 is hydrogen or methyl; R4 is hydrogen or methoxy; R5 is hydrogen or methoxy. The device according to claim 1, wherein the chemical structural formula of the compound with the ability to filter blue light includes:

；

；

；

;or

. According to the device according to claim 1, the mass of the at least one compound having the performance of filtering blue light accounts for 0.25%-3.0% of the total mass of the substrate and the compound. The device according to claim 1, wherein the substrate includes at least one of a hydrophilic substance, a non-hydrophilic substance, a crosslinking agent, and an initiator. The device according to claim 4, wherein the hydrophilic substance includes 2-hydroxyethyl methacrylate HEMA, MMA methacrylate, AA acrylic acid, N-vinylpyrrolidone NVP, and N,N'-dimethyl propylene At least one of amide DMAA, glycidyl methacrylate GMA, and diethylaminoethyl methacrylate DEAEMA; the non-hydrophilic substance includes a silicon group, and the non-hydrophilic substance includes (3-methacrylic acid) Glyoxy-2-hydroxypropoxy) propyl bis(trimethylsiloxy) methyl SIGMMA, methacryloxypropyl tris(trimethylsiloxyalkyl) silane TRIS, polydimethylsilyloxy) At least one of siloxane PDMS; the crosslinking agent includes ethylene glycol dimethacrylate EGDMA, triethylene glycol dimethacrylate TrEGDMA, tetraethylene glycol dimethacrylate TEGDMA, polyethylene dimethacrylate At least one of alcohol dimethacrylate PEGDMA, propylene-terminated ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer DBE-U22, and trimethylolpropane trimethacrylate TMPTMA; The initiator includes a thermal initiator or a photoinitiator, and the thermal initiator includes at least one of 2,2'-azobisisobutyronitrile AIBN, azobisisoheptonitrile ADVN, and benzyl peroxide BPO; The photoinitiator includes phenylbis(2,4,6-trimethylbenzyl)-phosphine oxide Irgacure 819, 2-hydroxy-2-methyl-1-phenyl-1-acetone Darocur 1173 At least one of. A preparation method of a device for filtering blue light, the method comprising: uniformly mixing a substrate and at least one compound having a blue light filtering performance to form a first mixture; placing the first mixture in the forming of the device for filtering blue light In the mold, the base material and the compound undergo a copolymerization reaction; after the copolymerization reaction is completed, the device for filtering blue light can be obtained by peeling off from the forming mold; wherein, the compound having the performance of filtering blue light has the following general formula :

, Where R1 is

or

；R2 is hydroxyl or

; R3 is hydrogen or methyl; R4 is hydrogen or methoxy; R5 is hydrogen or methoxy. The method according to claim 6, wherein the chemical structural formula of the compound includes:

；

；

；

;or

. According to the method according to claim 6, the mass of the compound having the performance of filtering blue light accounts for 0.25%-3.0% of the total mass of the substrate and the compound. The method according to claim 7, wherein the substrate includes at least one of a hydrophilic substance, a non-hydrophilic substance, a crosslinking agent, and an initiator. The method according to claim 9, wherein the hydrophilic substance includes 2-hydroxyethyl methacrylate HEMA, MMA methacrylate, AA acrylic acid, N-vinylpyrrolidone NVP, and N,N'-dimethyl propylene At least one of amide DMAA, glycidyl methacrylate GMA, and diethylaminoethyl methacrylate DEAEMA; the non-hydrophilic substance includes a silicon group, and the non-hydrophilic substance includes (3-methacrylic acid) Glyoxy-2-hydroxypropoxy) propyl bis(trimethylsiloxy) methyl SIGMMA, methacryloxypropyl tris(trimethylsiloxyalkyl) silane TRIS, polydimethylsilyloxy) At least one of siloxane PDMS; the crosslinking agent includes ethylene glycol dimethacrylate EGDMA, triethylene glycol dimethacrylate TrEGDMA, tetraethylene glycol dimethacrylate TEGDMA, polyethylene dimethacrylate At least one of alcohol dimethacrylate PEGDMA, propylene-terminated ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer DBE-U22, and trimethylolpropane trimethacrylate TMPTMA; The initiator includes a thermal initiator or a photoinitiator, and the thermal initiator includes at least one of 2,2'-azobisisobutyronitrile AIBN, azobisisoheptonitrile ADVN, and benzyl peroxide BPO; The photoinitiator includes phenylbis(2,4,6-trimethylbenzyl)-phosphine oxide Irgacure 819, 2-hydroxy-2-methyl-1-phenyl-1-acetone Darocur 1173 At least one of.

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