Sannova has achieved a major breakthrough in full greyscale ChLCD e-paper technology following two years of research and development. The innovation delivers smoother gradients, richer tonal detail and more delicate shadows, bringing a more refined visual finish to art and commercial signage.
Full Greyscale Without Dithering
Dithering creates the appearance of additional tones by arranging small dots into patterns. This can introduce visible graininess, particularly in soft gradients, subtle tonal transitions and shadows.
Sannova’s full greyscale ChLCD technology renders these details without relying on dithering. The result is smoother imagery that preserves subtle variations in tone—an important development for applications where the quality of the final visual matters.
Customers retain the flexibility to switch between full greyscale and dithering modes through our API or CMS, selecting the mode that best suits their content.
Expanded Connectivity and Improved Construction
Alongside advances in image quality, Sannova’s latest developments support commercial installation requirements.
Our e-paper displays now support Power over Ethernet (PoE) and enterprise-level Wi-Fi security certification, expanding connectivity options for business environments.
The 13.3-inch display will also feature an aluminium alloy enclosure, addressing the deformation issues associated with plastic housings.
Two Models Enter Mass Production
The EP32WA02 and EP133WA02 have entered mass production, marking another milestone in the development of Sannova’s commercial e-paper range.
Outdoor and garden display versions will follow, extending the range into further applications.
Supporting Display Refreshes Through Indoor Light
Sannova’s built-in micro-light harvesting technology uses ambient indoor light to support display refreshes.
Under test conditions of continuous indoor illumination at 600 lux for eight hours:
The 32-inch display can achieve more than 25 daily refreshes.
The 13.3-inch display can achieve eight daily refreshes.
These results demonstrate the potential of indoor light harvesting for regularly updated e-paper content. Actual performance will depend on the lighting conditions at the installation.
Discover the Latest Sannova Developments
From full greyscale imagery to connectivity, construction and light harvesting, Sannova continues to expand what commercial e-paper can deliver.
Contact us at ashleyjiang@sannova.tv to discuss the latest developments and your application.