Introducing neutral layer design to supressed deformation in stretchable display
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The cutting edge technologies of display have been rapidly progressed in terms of foldable and rollable display technology. Also, the form factor paradigm of the display is moving into the next level deformable display, which is also known as the stretchable display technology. Developing on to the next generation technology, unlike previous flexible technology, stretchable display technology requires not only microscopic but also macroscopic deformation behavioral studies. Once the display panel is stretched toward the vertical axis, deformation such as wrinkle and distortion are inevitable due to differences in Young’s modulus and Poisson ratio. In order to relieve this vertical shape distortion, we introduced a new stretchable display vertical panel structure design with a strain neutral zone. Through this study, we could observe significant suppression of shape distortion under a stretching display environment.