The display as a rigid, rectangular matrix is giving way to more fluid notions: thin, flexible, tactile surfaces customized to form and space.
BY ELISE CO AND NIKITA PASHENKOV
Television screens and computer monitors are so ubiquitous in our daily lives that the notion of a “display” is almost inevitably linked to something rigid and rectangular. However, even as technology moves toward smaller and more portable devices, there is also a strong and growing interest in the physical, tangible reality of the things we interact with.
Here, we explore emerging display technologies, emphasizing their application in flexible and deformable devices that potentially take on any shape or form. In each case, the most important factor is how the technology is (or might be) adapted to integrate with an existing flexible substrate (such as a solid sheet of plastic or woven fabric). In this sense, the field of flexible displays is as much a matter of process innovation and materials research as it is a question of electrical or computer engineering.
Sometimes hailed as a successor to LCD technology, organic light-emitting diode (OLED) displays are based on organic polymer molecules that compose emissive and conductive layers of the display structure composited together through a form of printing. The layers are deposited in rows and columns that result in a matrix of pixels that
Light State
Subcapsule Addressing
(high-resolution capability)
Dark State
Top Electrode (transparent)
Negatively charged black particles
Clear Fluid
Positively charged white particles
Bottom Electrode
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