During the past year we met the first ereaders with a color screen. Very interesting devices that for many could not reach the level of a traditional magazine or a color book. However, this technology is not very mature yet and it is expected that in the coming months this type of screen improves considerably.
Scientists at the Chalmers University of Technology in Sweden have created a color electronic ink screen that significantly improves the color emitted by the panel without using an extra light source or you have to increase the refresh rate and reduce the energy consumption of the screen by half. This means that the panel is as effective as an LCD screen without abandoning the philosophy and technology of electronic ink.
It has been achieved by adding a porous layer composed of gold, tungsten and platinum that is capable of producing different colors as the panel reflects light. This makes the panel emits colors more faithful to what we currently see on a sheet of paper than those that occur on a tablet lcd screen. What's more, the energy consumption of this screen has been cut in half, so an ereader with a current color screen could have twice the autonomy of a normal ereader.
These improvements have been achieved by changing the situation of the conductive layer, which becomes below the color nanostructure. The result of all this is a panel that improves the accuracy and fidelity of colors as perceived by humans.
This panel or type of screen also has the peculiarity of being able to bend like paper and have a fairly thin thickness. All these qualities make the result a quite ideal screen or panel for ereaders and for other devices where color is needed but you don't have much power or you simply shouldn't use lcd screens.
The success of these investigations has not left any company indifferent and already it is being considered to produce this type of panels in mass. However, here is another big problem.
This new screen is cheaper and consumes less than electronic ink screens
Apparently the construction of this technology is very affordable but in the construction of these panels expensive materials such as platinum or hard-to-find metals such as gold are needed, so the costs of building this large-scale technology skyrocket.
Unfortunately we will not have ereaders with this screen next month nor will we have the screen on the market from a certain date in 2021 or 2022, but it is a technology that many companies have focused on and that possibly hit the ereader market.
We currently have on the market the Pocketbook Color y the Pocketbook InkPad Color, two devices that show great results as far as color screen is concerned. And without forgetting other devices that will hit stores in the coming weeks.
Personally, I think the advances made by the Swedish University of Technology are very interesting. The ereader is a device that existed before the Amazon Kindle, but only a battery life close to a month and its low price made this device popular and used. If a similar formula were repeated with color screen ereaders the demand may have changed the specifications of the ereaders. Hence, I think that using such a technology would be very interesting.
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