E-books will be able to show color video
|E-books with E Ink displays have led to a new and extremely convenient class of devices for reading in any environment, day or night. The only thing they couldn't do was play the video. The E Ink screen updates too slowly. It doesn't add up to color yet, but video is clearly not the strong suit of this technology. The Chinese promise to fix this, and old research from Philips helps them in this. |
Progress in the development of color reflective displays with the ability to show videos was reported by the South China pedagogical University (SCNU). Back in 2012, the University created a group for the development of "paper" displays under the leadership of former Philips engineers. Later, the team started working with a local company, Shenzhen Guohua Optoelectronics Ltd, which is likely to commercialize the development.
To date, the efforts of E Ink and other companies that have tried to create an alternative technology for reflective displays have not led to anything sensible in terms of color transfer and video playback, and two of the most promising technologies — Mirasol and Liquavista — have completely sunk into Oblivion. Or not? The most striking thing about the new development of the Chinese is that it is a brought to mind electric wetting technology, which the Dutch Liquavista tried to exploit. However, there is nothing to be surprised at. Liquavista and new Chinese achievements are based on the same achievements of Philips researchers.
Liquavista, the company ceased active operations in 2013. China picked up the banner that fell from its hands and now promises to release a commercial product in 2021. These can be portable devices for reading and watching videos, which can work for weeks on an Autonomous power supply, like regular readers on E Ink. But unlike book readers, video is played back at a high frame rate.
Currently, developers show two color reflective displays and two monochrome ones, in particular, a 5.8-inch color screen. It is reported that it shows bright colors in sunlight with a good level of contrast and reflection. The display uses three standard typographic colors — cyan, Magenta, and yellow-to form the color, so the image quality is said to be close to the printed one. Of the other declared characteristics, you can voice the contrast level-10: 1 (approximately like black and white E Ink) and 40 % reflectivity, which is also close to the indicators of conventional E Ink.
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