View has been granted a patent for methods of manufacturing electrochromic windows. The patent describes the fabrication of an electrochromic device on a glass sheet, with cutting patterns based on low-defectivity areas. Laser scribes and bus bars can be added before or after cutting, and edge deletion can be performed. The patent also mentions the fabrication of insulated glass units (IGUs) from the electrochromic panes, with the option to strengthen one or more panes. GlobalData’s report on View gives a 360-degree View of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on View, Smart windows was a key innovation area identified from patents. View's grant share as of September 2023 was 44%. Grant share is based on the ratio of number of grants to total number of patents.
Manufacturing electrochromic windows with modified optical properties
A recently granted patent (Publication Number: US11772366B2) describes an insulated glass unit with various unique features. The unit consists of a first pane with a laminate that includes a substrate, an electrochromic device, a reinforcing substrate, and a lamination layer. The lamination layer is designed to modify the optical properties of the glass unit, such as color, opacity, and scattering. Additionally, the lamination layer can impart a blue color to the glass unit.
The lamination layer is made of a resin, which may contain dyes, pigments, scattering particles, or metallic dust. Before curing, the resin is in a liquid state and can be cured through heating, a catalyst, or exposure to ultraviolet radiation. The substrate with the electrochromic device and the reinforcing substrate are laminated together using techniques like roll pressing, autoclaving, vacuum bagging, or liquid resin lamination.
The reinforcing substrate can be directly laminated to the electrochromic device and is typically thicker than the substrate with the electrochromic device. It can be made of materials such as float glass, tempered glass, or a polymeric material like plexiglass. The electrochromic device itself is all solid-state and inorganic, and it is positioned on the inner facing surface of the glass unit.
The insulated glass unit may also include bus bars on the electrodes of the electrochromic device and can even have an additional electrochromic device on the reinforcing substrate of the laminate.
This patented insulated glass unit offers several advantages, including the ability to modify the optical properties of the glass, particularly its color. The use of a resin-based lamination layer allows for customization and flexibility in achieving desired optical effects. The combination of different substrates and lamination techniques ensures a strong and durable structure. The inclusion of an electrochromic device adds functionality to the glass unit, allowing for control over its transparency or opacity.
Overall, this patented technology presents an innovative solution for insulated glass units with enhanced optical properties and customizable features.
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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.
GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
