Up To 10,000 DPI With New OLED Displays

Scientists from Stanford University developed a new technology for OLED displays which can achieve a recording density of up to 10,000 DPI. It uses a special kind of meta-surface which can change the optic properties of light.

Image by David Zydd from Pixabay

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The development of displays continues and scientists from Stanford University are trying to improve the properties of OLED displays. They used the lately often researched technology of meta-surfaces which are capable of changing the optic properties of light. The results should be that instead of DPI in the ranges of hundreds (your phone most likely has a DPI of 400 – 500) the new technology could allow us to reach up to 10,000 DPI. Scientists from Stanford cooperated with the Samsung Advanced Institute of Technology on the research.

If you don’t understand what would be the point of such extreme pixel densities, then you should understand that the point of use of these is not in current technologies, but technologies such as virtual or augmented reality where such pixel density is important as the displays are much closer to our eyes, making the pixels possibly more noticeable. But smaller pixels is not the only benefit of this technology. It should also provide us with easier and cheaper production.

In this particular case, the meta-surface is a special nano-reflexive metal surface (nano-mirrors) which can change the properties of light and thus allow for the change of color in the individual pixels. And the cheaper production should be allowed because of the fact that current displays have a different height of diodes for different colors which they produce while here the diodes can all be the same while the meta-surface itself takes care of the colors.

Sources:

• https://science.sciencemag.org/content/370/6515/459

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