Display Technology Paul Treichler, head of marketing, Rain Technology
reduce screen brightness and clarity; impact touch sensitivity; are always fi xed in “privacy mode,” limiting advertising and messaging on that screen; and perhaps most critically, lack remote management capabilities. Organisations need better solutions that not only enhance privacy but can also be controlled and managed remotely to ensure comprehensive security.
Embedded display technology This is where the new wave of embedded display technology comes into play. Imagine a world where enterprise IT departments can remotely control the viewing angle of employees’ devices, such as laptops and smartphones, to prevent unauthorised viewers from accessing sensitive data. This
functionality could be triggered automatically through geo-fencing, user authentication, or IT policies — or even manually by the user. This embedded display technology enables the direct integration of privacy controls into the hardware itself, offering an unprecedented level of protection for users and organisations alike. For application developers, embedded display technology opens new possibilities to integrate privacy features directly into software. Whether in banking apps or social media platforms, developers can embed privacy controls that are automatically triggered when sensitive information is displayed. In this way developers can take advantage of a privacy feature just like they do a GPS or camera on a phone. This guarantees that users’ data is protected in real time, contributing to a safer digital experience, and also ensures that this capability is easy to integrate into applications by developers.
Introducing switchable privacy Switchable privacy is an advanced display technology that narrows the permitted viewing angle on demand, ensuring that content is visible only to the intended user. This technology is already being integrated into various devices, including laptops,
smartphones, POS and ATM terminals. Switchable privacy is a thin, embedded proprietary layer within the liquid crystal module of a display screen. The patented approach is focused on directing and controlling the light coming out of the displays. The design parameters are determined during panel manufacturing and activated by a hardware or software trigger, eye tracking, or manually switching a display from share mode to privacy mode to control the viewing angle. The technology can enable as little as 0.3 per cent screen visibility from a 45° viewing angle. The static refl ective design is compatible with LED, OLED, mini-LED and micro-LED displays.
By providing IT departments with the ability to remotely control the viewing angles of displays, this technology offers a new level of privacy and security. For example, a device could automatically adjust its display so that only the person directly in front of it can view the confi dential content, or in a collaborative mode, the viewing angle would widen. Beyond the offi ce, industries such as automotive are exploring how embedded display technologies can improve safety for the driver by minimising screen distractions, while enhancing the infotainment experience
for the passengers. In retail stores and banks, POS and ATM terminals can prevent unauthorised viewing of transactions for customer privacy, while delivering wide view marketing messages when a transaction is not taking place. Further capabilities allow a static logo to be displayed to peripheral viewers during transactions.
A holistic approach to the future of privacy
As organisations recognise the need for a holistic approach to security, the combination of hardware and software solutions becomes essential. As such, the integration of embedded display technologies is transforming our interactions with devices. As privacy concerns increase, both businesses and consumers are seeking solutions that protect data and offer greater control over access. By empowering users, businesses and developers with innovative tools, like switchable privacy, we can create a future where security is seamlessly embedded into devices, enabling smarter, safer and more efficient interactions across all aspects of our lives.
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www.cieonline.co.uk Components in Electronics February 2025 37
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