paper-thin, flexible lcd screens developed

The scientists designed a paper.
Lightweight and flexible LCD screens pave the way for smart daily newspapers that can be uploaded to the display in real time.
The researchers estimate that the technology will be cheap to produce at about $5. inch screen.
The team focuses on two key innovations to achieve a highly flexible design.
The first is the latest development of optical erasable liquid crystal display.
The scientists designed a paper.
Lightweight and flexible LCD screens pave the way for smart daily newspapers that can be uploaded to the display in real time.
The researchers estimate that the technology will be cheap to produce at about $5. inch screen.
The team focuses on two key innovations to achieve a highly flexible design.
The first is the latest development of optical erasable liquid crystal display.
Like the traditional LCD display, the structure of the display is like a sandwich, filling the liquid crystal between the two boards.
Unlike traditional liquid crystals, the electrical connection on the flat panel produces the field required to switch a single pixel from light to dark, and the optical erasable liquid crystal display covers the flat panel with special molecules, these molecules rearrange and switch pixels under polarized light storage.
This eliminates the need for conventional electrodes, reduces the volume of the structure and allows for more options in terms of the type and thickness of the plate.
Therefore, the optical erasable LCD is thinner than the traditional LCD and is less than half a millimeter thick. it can be made of flexible plastic and weighs only a few grams.
Sun Jiadong of Donghua University in China said: \"It is only a little thicker than paper . \".
Optical erasable liquid crystal display is simple in structure, durable and low in manufacturing cost.
Also, like the electronic paper screen in e-commerce
Book, switching to display images or text requires only energy.
As a result, the operating costs are low, as these new LCD do not require power to maintain the image once the image is written to the screen.
The second innovation is to make spacers separated by plastic or glass plates.
\"We place spacers between glass layers to keep the liquid crystal layer uniform,\" Sun said . \".
All LCD monitors use gaskets to determine the thickness of the LCD.
Constant thickness is necessary for good contrast, response time and viewing angle.
However, when the plate is bent, it forces the liquid crystal away from the impact site, leaving the blank part of the screen, so the change of the interval design is essential to prevent excessive movement of the liquid crystal in the flexible LCD.
It turns out that developing flexible designs to overcome this obstacle is challenging.
The researchers tried three different gasket designs and found that the mesh gasket prevents liquid crystal flow when the LCD display is bent or hit.
This innovation enables them to create the first flexible, erasable LCD.
Another innovation is to improve color rendering.
Scientists reported that before the study, optical erasable LCD displays could only display two colors at a time.
Now their optical erasable LCD displays three primary colors at the same time.
They do this by placing a special type of liquid crystal behind the LCD, which shows red, blue and green.
In order to make it a commercial product, Sun hopes to improve the resolution of the flexible optical erasable LCD.
\"Now we have three colors, but for the full color, we need to make the pixels too small for the human eye to see,\" Sun said . \".