TW202000712A - 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; R3 is hydrogen or methyl; R4 is hydrogen or methoxyl; R5 is hydrogen or methoxyl. Through the above method, the present application can improve the stability of the device for anti-blue-light.

Description

Device for filtering blue light and preparation method thereof

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

With the advancement of technology, many electronic products that emit near-ultraviolet and blue light have been developed in recent years, such as liquid crystal displays and mobile phone screens. The 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 lesions in the retina, etc., which will irreversibly damage the user's vision.

In order to reduce or avoid the damage caused by blue light, many blue light filtering devices appear on the market, for example, screen protection device films with blue light filtering, glasses, etc.

The inventor of the present application discovered during the 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 base material of the device. Such devices are prone to long-term use or storage environment As a result, the substance with the blue light filtering performance falls off, thereby reducing the device's ability to block blue light.

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

， 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 by the present application is to provide a device for filtering blue light, which is obtained by a copolymerization reaction between a substrate and at least one compound with blue light filtering performance; wherein, the device with 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.

To solve the above technical problems, another technical solution adopted by the present application is to provide a method for preparing a device for filtering blue light, the method including:

Mixing the substrate and at least one compound with blue light filtering performance to form a first mixture;

Placing the first mixture in the forming mold of the device for filtering blue light, and the substrate undergoes a copolymerization reaction with 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 device for filtering blue light can be obtained by peeling from the forming mold; wherein, the compound with blue light filtering performance 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 effects of the present application are: different from the situation in the prior art, the compound with blue light filtering performance provided by the present application has an unsaturated C=C double bond, and when used in a device for filtering blue light, it can The material undergoes a copolymerization reaction, so that the compound with blue light filtering performance is stably retained on the device, and thus the sustainability and stability of the blue light filtering device can be effectively improved.

The technical solutions in the embodiments of the present application will be described clearly and completely 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, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work fall within the protection scope of the present application.

The blue light filtering device provided by the present application is obtained by a copolymerization reaction between a substrate and at least one compound having blue light filtering performance. The device for filtering blue light may be a polarizing film, a brightness enhancement film, a diffusion film, a filter film, and 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 structural formula of the compound with blue light filtering performance of the present application is shown below,

, In this formula 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 compound with blue light filtering performance includes any of the following. Of course, in other embodiments, the structural formula of the above compound may also be other compounds that satisfy the above general formula. limited. Compound 1:

; Compound 2:

; Compound 3:

; Compound 4:

; Compound 5:

.

In an application scenario, the mass of the 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. This unsaturated bond undergoes a copolymerization reaction with C=C in the above-mentioned compound with blue light filtering performance, thereby fixing the compound with blue light filtering performance On the substrate. The above substrate includes at least one of a hydrophilic substance, a non-hydrophilic substance, a cross-linking agent, and an initiator.

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

Non-hydrophilic substances contain silicon groups, and non-hydrophilic substances include (3-methacryloxy-2-hydroxypropoxy)propylbis(trimethylsiloxy)methyl SIGMMA, methacryl At least one of oxypropyltris(trimethylsiloxyalkyl)silane TRIS and polydimethylsiloxane PDMS. In other application scenarios, non-hydrophilic substances 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, trimethylolpropane trimethacrylate TMPTMA, in other application scenarios, the crosslinking agent can also be In addition, 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, azobisisoheptanonitrile ADVN, and benzoyl peroxide BPO, in other applications In the scene, the thermal initiator may also be other, which is not limited in this application; the photoinitiator includes phenyl bis(2,4,6-trimethylbenzyl)-phosphine oxide (trade name: Irgacure 819) 2. At least one of 2-hydroxy-2-methyl-1-phenyl-1-acetone (trade name: Darocur 1173). In other application scenarios, the photoinitiator may 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 manufacturing a device for filtering blue light according to the present application. The method includes:

S101: Mix the base material and at least one compound with blue light filtering performance to form a first mixture; specifically, the base material and the compound with blue light filtering performance can be referred to the related content in the above embodiments, which will not be repeated here. .

S102: Place the first mixture in the forming mold of the device for filtering blue light, and the base material and the compound undergo a copolymerization reaction; specifically, the above-mentioned forming mold is a mold made in proportion to the actual shape and structure. In some cases, after the above substrate and the compound having blue light filtering performance are mixed, some impurities may be mixed therein. Therefore, before this step S102, the method further includes filtering the first mixture prepared in step S101.

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

The following further describes the present application through 58 specific embodiments. For convenience of explanation, the raw material unit used in preparing the device for filtering blue light in the following embodiments is calculated in grams (g), and in other embodiments, it may be scaled up or down according to the actual situation. 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 compound 1-compound 5 with blue light filtering performance. For the specific structural formula, please refer to the above examples and the comparative compound. The structural formula of the comparative compound is shown below. The comparative compound is a traditional one with blue light filtering performance. Compound. Comparative compounds:

.

B. Provide Example 1-29: Mix a certain amount of compound 1-5 and a comparative compound with a substrate and stir to form a first mixture, wherein the substrate specifically includes 2-hydroxyethyl methacrylate HEMA, MAA methacrylate, ethylene glycol dimethacrylate EGDMA, 2,2'-azobisisobutyronitrile AIBN, the quality of each component in each specific embodiment can be seen in Table 1 below; the above first mixture is filtered After that, it is placed in the forming mold of the device for filtering blue light, and the copolymerization reaction is performed; after the copolymerization reaction is completed, it is peeled from the forming mold to obtain the device for filtering blue light corresponding to Example 1-29.

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

C. Provide Examples 30-58: Mix a certain amount of compound 1-5 and a comparative compound with a substrate and stir them evenly to form a first mixture, wherein the substrate specifically includes (3-methacryloyloxy- 2-Hydroxypropoxy)propylbis(trimethylsiloxy)methyl SiGMA, 2-hydroxyethyl methacrylate HEMA, N-vinylpyrrolidone NVP, propylene-terminated ethylene oxide dimethylsiloxy Alkane-ethylene oxide ABA block copolymer DBE-U22, 2,2'-azobisisobutyronitrile AIBN, the quality of each component in each specific embodiment can be seen in Table 2 below; after filtering the above first mixture , Placed in the forming mold of the device for filtering blue light, and carrying out the copolymerization reaction; after the copolymerization reaction is completed, peeling from the forming mold to obtain the device for filtering blue light corresponding to Examples 30-58.

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

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

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

[Table 4] The 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 above Examples 1-58; specifically, the device prepared in Examples 1-29 Soak in poloxamer aqueous solution to simulate the storage environment of the device; immerse the device prepared in Examples 30-58 in 75% alcohol aqueous solution to simulate the storage environment of the device; use ultraviolet-visible light spectrometer (model: Bio Mate 3S) Measure the blue light transmittance of the aqueous solution after the device is soaked for 0 hours, 4 hours, 8 hours, 12 hours and 24 hours in the wavelength range of 380nm-460nm to observe whether the compound with blue light filtering performance is removed from the device The phenomenon of shedding to the aqueous solution is 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

It can be found from Tables 3 and 4 above that the devices for filtering blue light provided by the present application (Example 5-29, Example 34-58), under the same conditions, added compounds with blue light filtering properties ( 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 compound 1-5 and the comparative compound have a structure that blocks blue light as two benzene rings and a structure formed between the two benzene rings. Under the condition of adding the same mass of the compound 1-5 and the comparative compound, the compound 1 -5 has a structure capable of blocking blue light less than the comparative compound, so the blue blocking rate of the device obtained by adding the same mass of the compound 1-5 is smaller than that 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 soaking time, the lower the blue light transmittance of the solution, that is, the higher the blue light blocking rate of the solution, the solution has the ability to block blue light. The more compounds there are, the more blue light blocking compounds that fall off the device.

Although the devices made using the comparative compounds (Examples 1-4, 30-33) are found in Tables 3 and 4, the initial ability to block blue light is better than the devices made with Compound 1-5 (Example 5 -29,34-58), but it is found from Tables 5 and 6 that during the long-term use and storage of the device, the device prepared using the comparative compound (Examples 1-4, 30-33), its blue light blocking effect will be There is a large recession. 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 The device's ability to filter blue light is more sustainable and stable than devices made using comparative compounds (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 introduced unsaturated C=C in its structural formula, which can undergo polymerization reaction with C=C in the substrate (comparative compounds cannot produce polymerization reaction with the substrate), thus The compound with blue light filtering performance is stably retained on the device, which can effectively improve the sustainability and stability of the blue light filtering device.

The above are only the embodiments of the present application, and therefore do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the description and drawings of this application, or directly or indirectly used in other related technical fields, The same reason is included in the scope of patent protection of this application.

S101~S103‧‧‧Step

In order to more clearly explain the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required 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, without paying any creative work, other drawings can be obtained based on these drawings. FIG. 1 is a schematic flowchart of an embodiment of a method for manufacturing a blue light filtering device of the present application.

S101~S103‧‧‧Step

Claims (10)

A device for filtering blue light, the device is obtained by a copolymerization reaction between a substrate and at least one compound having blue light filtering performance; wherein, the compound having blue light filtering performance 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 blue light filtering performance includes:

;

;

;

;or

. The device according to claim 1, wherein the mass of the at least one compound having blue light filtering performance accounts for 0.25%-3.0% of the total mass of the substrate and the compound. The device according to claim 1, the substrate includes at least one of a hydrophilic substance, a non-hydrophilic substance, a cross-linking agent, and an initiator. The device according to claim 4, wherein the hydrophilic substance includes 2-hydroxyethyl methacrylate HEMA, methacrylic acid MMA, acrylic acid AA, N-vinylpyrrolidone NVP, N,N'-dimethylpropene At least one of amide DMAA, glycidyl methacrylate GMA, diethylaminoethyl methacrylate DEAEMA; the non-hydrophilic substance contains a silicon group, and the non-hydrophilic substance includes (3-methacrylic Acyloxy-2-hydroxypropoxy)propyl bis(trimethylsiloxy)methyl SIGMMA, methacrylic oxypropyltris(trimethylsiloxyalkyl)silane TRIS, polydimethyl At least one of silicone PDMS; the cross-linking agent includes ethylene glycol dimethacrylate EGDMA, triethylene glycol dimethacrylate TrEGDMA, tetraethylene glycol dimethacrylate TEGDMA, polyethylene glycol At least one of alcohol dimethacrylate PEGDMA, propylene terminal ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer DBE-U22, 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, azobisisoheptanonitrile ADVN, and benzoyl peroxide BPO; The photoinitiator includes phenyl bis(2,4,6-trimethylbenzyl)-phosphine oxide Irgacure 819, 2-hydroxy-2-methyl-1-phenyl-1-acetone Darocur 1173 At least one. A method for preparing a blue light filtering device, the method comprising: mixing a substrate and at least one compound having blue light filtering properties to form a first mixture; placing the first mixture in the forming of the blue light filtering device In the mold, the base material and the compound undergo a copolymerization reaction; after the copolymerization reaction is completed, the blue light filtering device can be obtained by peeling from the forming mold; wherein, the compound having blue light filtering performance 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. According to the method of claim 6, the chemical structural formula of the compound includes:

;

;

;

;or

. According to the method of claim 6, the mass of the compound with blue light filtering performance 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 cross-linking agent, and an initiator. The method according to claim 9, wherein the hydrophilic substance includes 2-hydroxyethyl methacrylate HEMA, methacrylic acid MMA, acrylic acid AA, N-vinylpyrrolidone NVP, N,N'-dimethylpropene At least one of amide DMAA, glycidyl methacrylate GMA, diethylaminoethyl methacrylate DEAEMA; the non-hydrophilic substance contains a silicon group, and the non-hydrophilic substance includes (3-methacrylic Acyloxy-2-hydroxypropoxy)propyl bis(trimethylsiloxy)methyl SIGMMA, methacrylic oxypropyltris(trimethylsiloxyalkyl)silane TRIS, polydimethyl At least one of silicone PDMS; the cross-linking agent includes ethylene glycol dimethacrylate EGDMA, triethylene glycol dimethacrylate TrEGDMA, tetraethylene glycol dimethacrylate TEGDMA, polyethylene glycol At least one of alcohol dimethacrylate PEGDMA, propylene terminal ethylene oxide dimethylsiloxane-ethylene oxide ABA block copolymer DBE-U22, 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, azobisisoheptanonitrile ADVN, and benzoyl peroxide BPO; The photoinitiator includes phenyl bis(2,4,6-trimethylbenzyl)-phosphine oxide Irgacure 819, 2-hydroxy-2-methyl-1-phenyl-1-acetone Darocur 1173 At least one.

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