E Ink has been granted a patent for a display device that includes a touch sensing layer, light guide module, and display panel with no adhesive material between them. The device features a base layer with a colorless polyimide layer and a water vapor barrier layer, enhancing durability and functionality. GlobalData’s report on E Ink gives a 360-degree view of the company including its patenting strategy. Buy the report here.
Smarter leaders trust GlobalData
According to GlobalData’s company profile on E Ink, E-transaction user interfaces was a key innovation area identified from patents. E Ink's grant share as of April 2024 was 58%. Grant share is based on the ratio of number of grants to total number of patents.
Display device with touch sensing layer and light guide module
A recently granted patent (Publication Number: US11966546B2) discloses a display device that includes a base layer with a colorless polyimide (CPI) layer and a water vapor barrier layer, a touch sensing layer, and a light guide module. The touch sensing layer is positioned between the light guide module and a display panel, with no adhesive material between them. The display panel consists of a substrate, an electronic ink layer, a lower electrode, and an upper electrode. The upper electrode is in contact with the water vapor barrier layer and is located between the electronic ink layer and the water vapor barrier layer. An adhesive layer is placed between the light guide module and the touch sensing layer to adhere the components together.
Furthermore, the patent also describes a fabrication method for the display device, involving the formation of the touch sensing layer directly on the base layer, the assembly of the light guide module, and the attachment of the display panel. The touch sensing layer includes a first sensing electrode, a first insulating layer, a second sensing electrode, and a second insulating layer. The light guide module comprises a light guide plate made of thermoplastic polyurethanes (TPU) with a dot structure, a cover structure, and a circuit shielding layer. The fabrication method ensures that the components are assembled in a specific sequence to achieve the desired functionality of the display device. The patent also covers a fabrication method for a light guide touch module, which involves the formation of the light guide module and the touch sensing layer, followed by the attachment of the components to create a functional display device.
To know more about GlobalData’s detailed insights on E Ink, buy the report here.
Data Insights
From
The gold standard of business intelligence.
Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.
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.
