Anti-blue-ray quantum dot membrane and preparation method thereof

Abstract

The invention provides an anti-blue-ray quantum dot membrane and a preparation method thereof. The anti-blue-ray quantum dot membrane prepared by the method is capable of using a high-molecular polymer as a base material, through homogeneous dispersion and compounding of quantum dots in a certain proportion and concentration, curing and forming; the quantum dots dispersed in the membrane absorb ablue ray and are excited by the blue ray, and photochemistry down-conversion is realized; and an anti-blue-ray technical effect is finally realized. The quantum dot membrane is a transparent materialas a whole, and comprises a light conversion layer and a protecting layer covering the exterior of the light conversion layer. The quantum dots are uniformly distributed in the light conversion layer.

Description

technical field [0001] The invention relates to the fields of display and lighting, in particular to an anti-blue light quantum dot film and a preparation method thereof. Background technique [0002] Nowadays, display and lighting devices using LEDs as light sources are becoming more and more popular. The products on the market are also uneven due to different manufacturers. During use, there will be a certain amount of blue light leakage. In particular, the 350-420nm band is called short-wave blue light. Long-term exposure to human eyes will cause damage to retinal cells, leading to diseases such as macular degeneration and cataracts. How to reduce the harm of blue light to human eyes has begun to attract more and more attention. [0003] After investigation and research, it is found that there are three main technologies to solve the hazards of blue light on the market: 1. Loading a physical blue light filter film; 2. Reducing the proportion of high-energy blue light th...

AI Technical Summary

Problems solved by technology

[0004] However, the physical blue light filter film used in the first technical method is usually treated with a microstructure on the film surface or loaded with a blue light reflective film on the film to reduce the proportion of high-energy blue light by scattering or reflecting blue light. The products on the website can only remove 2%-5% of blue light, and the effect is not very satisfactory;

[0005] The second option needs to download related software. The anti-blue light software will control the amount of blue light in the RGB three colors of the light-emitting screen, that is, by adjusting the color temperature, this will reduce the harmful blue light with a wavelength of 380nm to 480nm to a certain extent, but there are also very The obvious disadvantage is that the relative intensity of the light after the wavelength of 480nm will be greatly increased, that is, the screen will become yellowish, the brightness will be dimmed, and the contrast will be reduced.

Therefore, the display device will lose its true color, and it will be more difficult to recognize the text and images on the screen, which will hurt the eyes in the long run

If the degree of yellowing is reduced, the anti-blue light effect will be discounted, and the anti-blue light software cannot be applied to lighting equipment, which has certain limitations in use;

[0006] Although the third method has a certain degree of operability, it is difficult for ordinary companies to bear the increased production cost of only using blue-ray chips with fixed wavelengths, which will easily lead to the loss of market competitiveness of the products; To identify the wavelength of the blue light source actually used by the product, it is easy to be misled and cause unnecessary losses

Images