Guangzhou firm unveils world's largest e-paper screen

Guangzhou OED Technologies, a company focusing on the design, development, manufacture and sales of e-paper displays, unveiled the world's first electronic paper display screen measuring 30 inches and above in Guangzhou, the capital of Guangdong province, on Tuesday.

The breakthrough technology, with a refresh rate of up to 18 frames per second, achieves smooth video playback, marking a significant milestone in the development of e-paper display technology as large-sized color electronic paper transitions from static to dynamic display.

"Compared to traditional LCD or OLED screens, the e-paper display screen has significant advantages in terms of low power consumption, making it particularly suitable for applications in outdoor settings that require long-term operation," said Chen Yu, founder and general manager of OED.

The large screen design provides users with a broader field of view and the ability to maintain high contrast and clear visibility even in bright light or direct sunlight, according to Chen.

"This feature makes it uniquely valuable in outdoor digital signage, bus stop displays, public information screens and other scenarios," said Chen.

The product's core innovation lies in the unified control of split screens, optimized image processing algorithms and local display functions.

"It can dynamically refresh specific areas of the screen and control the synchronization of split screens on large displays, significantly improving response speed and refresh efficiency," said Chen.

The product has entered the mass production stage and is expected to be officially launched in the market within the next two months, according to the company.

"The introduction of this technology not only fulfills the expectations of the e-paper industry for dynamic displays but also provides a new technological path for low-carbon dynamic digital displays," said Chen.

The company, based in Guangzhou's Nansha district, unveiled its high-speed color electronic paper in November last year, marking a significant breakthrough for e-paper technology in terms of color display, refresh rate and user experience.

The market size of e-paper products in China has expanded rapidly in recent years, and they are being applied in areas including electronic tags, e-readers, smart education, smart homes and outdoor advertising.

"Particularly in electronic tags and e-readers, e-paper technology has been widely adopted," said Guo Zhiyou, a professor at the School of Electronics and Information Engineering of South China Normal University.

The e-paper industry and its terminal products have a market size of nearly 100 billion yuan ($13.77 billion) in China, with a market growth rate of around 20 percent in recent years.