Barrier transparent tempered film

Abstract

The invention discloses a barrier transparent tempered film which is composed of the following layers from top to bottom: 250 [mu] m (micron) high-aluminum three-strength glass, 85 [mu] m high-transmittance OCA, 15 [mu] m light-induced excitation carbon quantum dot coating, 15 [mu] m transparent blue light barrier coating, 25 [mu] m high-transmittance PET base material, 40 [mu] m silica gel layer and 50 [mu] m release film.

Description

Technical Field

[0001] This invention relates to the field of mobile phone protective film technology, specifically a barrier transparent tempered glass film. Background Technology

[0002] The claim that red light protects the eyes has garnered widespread attention in the market in recent years. Previous research by a team at University College London (UCL) has shown that exposure to 670 nm (long wavelength) deep red light significantly improves retinal photoreceptor cell function in mice, bumblebees, and fruit flies. Therefore, the team's latest study recruited 24 participants (12 men and 12 women) aged 28-72 with no eye diseases. At the start of the study, all participants underwent a sensitivity test of rod and cone cells. They were then given an LED light and instructed to stare at a deep red beam (670 nm) for 3 minutes daily for two weeks. After the initial test, a second photoreceptor cell sensitivity test was conducted. The results showed that 670 nm deep red light had no effect on young people, but significant improvements were observed in those over 40 years of age, including a 20% increase in cone cell contrast sensitivity (the ability to detect color). Researchers pointed out that the improvement is due to the fact that this specific wavelength of deep red light can be absorbed by the mitochondria in the photoreceptor cells of the retina, providing energy to the cells, just like charging a battery, which can greatly improve the declining vision of the elderly.

[0003] Existing blue light blocking screen protectors work by using blue light blocking technology to convert and effectively block blue light. Generally, genuine blue light blocking screen protectors appear yellowish against a white background and bluish under strong light. However, most blue light blocking screen protectors on the market do not effectively block blue light; instead, the yellowish tint reduces the brightness and saturation of the phone screen, especially noticeable under strong light. Therefore, existing screen protectors are more tiring on the eyes and cause more eye strain, making them counterproductive. Summary of the Invention

[0004] The purpose of this invention is to provide a barrier transparent tempered glass film to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A barrier transparent tempered glass film, comprising, from top to bottom, the following layers: 250 μm (micrometer) high-aluminum triple-strength glass, 85 μm high-transparency OCA, 15 μm photoexcited carbon quantum dot coating, 15 μm transparent blue light blocking coating, 25 μm high-transparency PET substrate, 40 μm silicone layer, and 50 μm release film.

[0006] Optionally, the photoexcited carbon quantum dot coating is a coating with quantum dot particle size less than 10 nanometers, and the coating contains 2% praseodymium particles with a particle size less than 8 nanometers.

[0007] Optionally, the transparent blue light blocking coating is composed of phosphor, organic light absorber, ultraviolet absorber, resin and transparent coating, with the following mass percentage content: phosphor 10-15%, organic light diffusing powder 0-10%, ultraviolet absorber 0-10%, transparent coating 15-20%, and resin as the balance.

[0008] Optionally, the high-transparency PET substrate is a film made of polyethylene terephthalate polymer through biaxial stretching.

[0009] Optionally, the PET release film is a PET polyester film.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: The technical solution of this application can effectively block blue light, and due to the use of a highly transparent blue light blocking coating, the screen protector is optimized from pale yellow to transparent, thus maintaining transparency under strong light and improving the brightness and saturation of the screen. Furthermore, the technical solution of this application utilizes the 380nm wavelength violet light emitted by the screen to excite the 620-700nm wavelength red light that is beneficial to the eyes, while blocking the blue light emitted by the screen in the 435-440nm wavelength range. This not only blocks the harmful effects of blue light on the eyes but also achieves the effect of eye protection, realizing the dual function of red light excitation and blue light blocking, providing more comprehensive eye protection, and addressing the problem of excessively high color temperature of red light films on the market. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the layer structure of the present invention; Figure 2 A graph showing the brightness differences of different tempered glass films on OLED screens across various wavelengths; Figure 3 This describes the light transmittance of the present invention in the wavelength range of 380 to 460 nanometers. Figure 4 This is a schematic diagram of an experiment under a general light source, as described in this application. Figure 5 This is an experimental schematic diagram of the 400nm specified laser band light source used in this application.

[0012] In the image: 1. High-aluminum triple-strength glass; 2. High-transparency OCA; 3. Photo-excited carbon quantum dot coating; 4. Transparent blue light blocking coating; 5. High-transparency PET substrate; 6. Silicone layer; 7. PET release film. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Please see the appendix Figure 1 -Appendix Figure 5 One embodiment of the present invention provides a barrier transparent tempered glass film, which is composed of the following layers from top to bottom: 250μm (micrometer) high-aluminum triple-strength glass 1, 85μm high-transparency OCA 2, 15μm photoexcited carbon quantum dot coating 3, 15μm transparent blue light blocking coating 4, 25μm high-transparency PET substrate, 40μm silicone layer and 50μm release film.

[0015] Working principle: The present invention provides a barrier transparent tempered glass film, which is composed of high-alumina triple-strength glass 1, high-transmittance OCA 2, photo-excited carbon quantum dot coating 3, transparent blue light blocking coating 4, high-transmittance PET substrate 5, silicone layer 6, and PET release film 7. Because the technical solution of this application uses transparent blue light blocking coating 4, it has better light transmittance. (See reference...) Figure 3 , Figure 3 The barrier transparent tempered glass film provided in this application has better barrier properties in the 435μm to 440μm wavelength range (blue light band).

[0016] In one alternative embodiment, the photoexcited carbon quantum dot coating is a coating with quantum dot particle sizes less than 10 nanometers, and the coating contains 2% praseodymium particles with particle sizes less than 8 nanometers. The aforementioned praseodymium particles can also be replaced with neodymium. Adding rare earth particles to the coating can effectively improve the transmittance of excited red light. Through methods such as... Figure 4 , Figure 5 As shown, the red light transmittance after adding relevant particles is significantly higher than that of existing products.

[0017] In one alternative embodiment, the transparent blue light blocking coating is composed of phosphor, organic light absorber, ultraviolet absorber, resin and transparent coating, with the following mass percentage content: phosphor 10-15%, organic light diffusing powder 0-10%, ultraviolet absorber 0-10%, transparent coating 15-20%, and resin as the balance.

[0018] For example, the above-mentioned transparent blue light blocking coating includes: blue light blocking powder, resin and transparent coating; wherein, the mass percentage of each part is as follows: blue light blocking powder 10-15%, transparent coating 20-25%, and resin as the balance.

[0019] In one alternative, the high-transparency PET substrate is a film made of polyethylene terephthalate polymer through biaxial stretching.

[0020] In one alternative embodiment, the PET release film is a PET polyester film. See Figure 4 , Figure 4 The experimental schematic diagram of this application under a general light source is shown below. Figure 4 As shown, Figure 4 The diagram shows a typical light source (i.e., natural light). Image 5A shows the effect of the barrier-free transparent tempered glass film of this application, and image 5B shows the effect of the first-generation blue light blocking tempered glass film. The difference is very obvious. Please refer to the image. Figure 5 Under normal light source illumination, the barrier transparent tempered glass film of this application has higher transparency, almost transparent, and better light transmittance. In contrast, the first-generation blue light blocking tempered glass film has a noticeably bluish tint. The tempered glass film of this application has a better blue light blocking effect.

[0021] See Figure 5 , Figure 5 This is an experimental schematic diagram of the 400nm specified laser band light source used in this application, as shown below. Figure 5 The diagram shown illustrates a light source with a specified laser wavelength of 400nm. Figure 5 As shown in Figure 6A, the image shows the effect of the barrier transparent tempered glass film of this application, and Figure 6B shows the first-generation blue light blocking tempered glass film. It is very obvious that, as shown in Figure 6A, the red color is very bright and more dazzling than the red color in Figure 6B. Therefore, the red light transmittance of the technical solution of this application is higher and the eye protection effect is better.

[0022] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A barrier transparent tempered film, characterized by: The barrier transparent tempered film is composed of the following layers from top to bottom: 250 μm (micron) high aluminum three-strong glass, 85 μm high-transmittance OCA, 15 μm photoexcitation carbon quantum dot coating, 15 μm transparent barrier blue light coating, 25 μm high-transmittance PET substrate, 40 μm silica gel layer and 50 μm release film.

2. The barrier transparent tempered film according to claim 1, wherein: The photoexcitation carbon quantum dot coating is a coating with quantum dot particle size less than 10 nanometers, and the coating contains 2% praseodymium particles with particle size less than 8 nanometers.

3. The barrier transparent tempered film of claim 1, wherein: The transparent barrier blue light coating is composed of fluorescent powder, organic light absorber, ultraviolet absorber, resin and transparent paint, and the mass percentage content of each component is: 10-15% fluorescent powder, 0-10% organic light diffusion powder, 0-10% ultraviolet absorber, 15-20% transparent paint, and the rest is resin.

4. The barrier transparent tempered film of claim 1, wherein: The high-transmittance PET substrate is a film made of polyethylene terephthalate polymer by bidirectional stretching.

5. The barrier transparent tempered film of claim 1, wherein: The PET release film is a PET polyester film.

6. The barrier transparent tempered film of claim 1, wherein: The transparent barrier blue light coating comprises: anti-blue light powder, resin and transparent paint; wherein the mass percentage of each part is: 10-15% anti-blue light powder, 20-25% transparent paint, and the rest is resin.

7. The barrier transparent tempered film according to claim 6, characterized in that: The anti-blue light powder is a particle with particle size less than 8 nanometers.

8. The barrier transparent tempered film according to claim 1, wherein: The photoexcitation carbon quantum dot coating is a coating with quantum dot particle size less than 10 nanometers, and the coating contains 2% neodymium particles with particle size less than 8 nanometers.

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