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>> Japan's Northeastern University developed ultra-soft LCD curvature radius of up to 3mm 7th,Jan,2017
Super soft new liquid crystal display components not only break through the life limit, up to 3mm radius of curvature to make it suitable for crimping and collapsible applications ...
Researchers at Tohoku University have developed ultra-soft, liquid-crystal display devices that use ultra-thin inorganic substrates to provide new life in traditional LCD technology. They are said to be able to break through life-cycle limitations and do not occur as OLEDs Degradation due to poor protection of the package and so on.
The research team led by Hideo Fujikake and Takahiro Ishinabe, a Faculty of Engineering at Tohoku University, re-examined the already mature and stable LCD materials and replaced them with plastic films with a thickness of only a few microns. Thick and hard glass substrate, to overcome the challenges of OLED instability.
LCD material is very cheap, even if the protection of these soft substrate poor, it will not lead to its performance degradation, but also has a large-size display of the method. Today, the challenge of making a curl-free display is how to avoid uneven deformation and image distortion due to the LC-filled gap between the two substrates when the display is bent.Researchers have developed an ultra-flexible liquid crystal cell by joining two ultra-thin transparent polyimide substrates (similar to packaged food wraps) with a thickness of about 10 μm and using solid polymer wall gaskets Keep isolation.
LCD material is very cheap, even if the protection of these soft substrate poor, it will not lead to its performance degradation, but also has a large-size display of the method. Today, the challenge of making a curl-free display is how to avoid uneven deformation and image distortion due to the LC-filled gap between the two substrates when the display is bent.Researchers have developed an ultra-flexible liquid crystal cell by joining two ultra-thin transparent polyimide substrates (similar to packaged food wraps) with a thickness of about 10 μm and using solid polymer wall gaskets Keep isolation.
The substrate bonded with the polymeric wall spacer is formed by irradiating the twisted liquid crystal layer and includes a monomeric element that is patterned by ultra-violet light via a single-layer substrate. This also allows researchers to stabilize ultra-thin substrates through smaller-pitch polymer walls.
This ultra-thin polyimide film (left) is formed by coating and peeling processes and has been tested for resistance to crimp (right) and can be used to develop ultra-soft liquid crystal elements.
The researchers also confirmed that even with a curvature of 3 mm, the uniformity of the element can be maintained without breaking the spacer layer, making it suitable for crimp and foldable applications. The researchers also believe that large-scale high-resolution crimp display manufacturing can achieve a better yield than OLED, and in the top layer of these thin-film transparent electrodes and color filters and other fine pixel structure.
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