Vitro has been granted a patent for a method of making a light extraction substrate. The substrate includes a borosilicate layer and nanoparticles, which are embedded within the substrate. The nanoparticles make up 0.1 to 20 weight percent of the substrate. GlobalData’s report on Vitro gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Vitro, Photovoltaic drones was a key innovation area identified from patents. Vitro's grant share as of September 2023 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Light extraction substrate with borosilicate and embedded nanoparticles
A recently granted patent (Publication Number: US11770950B2) describes a method for making a light extraction substrate using a specific process. The method involves pouring a glass melt onto a molten metal bath and applying a boron precursor over the glass melt while it is at a temperature of at least 600°C. This results in the production of a borosilicate material. Additionally, a nanoparticle precursor is applied over the glass melt to create the light extraction substrate, with nanoparticles present in a range of 0.1 weight percent to 20 weight percent and partially embedded within the substrate.
The temperature of the glass melt in this method is specified to be no more than 725°C, ensuring controlled conditions during the manufacturing process. The boron precursor can be applied without a silicon precursor, resulting in the production of a borosilicate material. However, it is also possible to apply a silicon precursor along with the boron precursor to produce the borosilicate.
In the described method, the application of the nanoparticle precursor leads to the formation of a nanoparticle with a layer formed by the boron precursor. Specifically, the nanoparticle precursor used in this process is titanium tetrachloride.
This patent provides a detailed and specific method for producing a light extraction substrate, which can be used in various applications such as lighting and display technologies. The inclusion of nanoparticles within the substrate can enhance light extraction efficiency, making it a valuable innovation in the field.
By specifying the temperature range and the use of boron and silicon precursors, the patent offers a controlled and reproducible process for manufacturing the light extraction substrate. The use of titanium tetrachloride as a nanoparticle precursor further adds to the novelty of the method.
Overall, this granted patent presents a novel and practical method for producing a light extraction substrate, offering potential advancements in the field of lighting and display technologies.
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