SPbPU: Display technology

2023: Product Announcement

Specialists of St. Petersburg Polytechnic University (SPbPU), together with colleagues from ITMO University and Alfer University, have developed a technology for the production of screens using perovskite (an inexpensive and easy-to-manufacture crystalline material), the brightness of which is more than three times higher than this OLED display indicator. This became known in early May 2023.

The technology implies the use of perovskite. It is an easy-to-manufacture crystalline material. And it allows you to provide brightness three times more than screens made of organic materials. Perovskite is planned to be applied to conventional silicon. Less energy consumption with a new kind of display means that smartphones with such screens will last much longer.

Perovskite Screen Manufacturing Technology

We first used such an architecture on a silicon substrate. It serves as a very good heat sink, so our device does not overheat, which increases its service life compared to its counterparts, "said ITMO professor Sergei Makarov (quoted by Izvestia)

He also noted that perovskite-based LEDs have high light transmission, i.e. the light emitted by them has narrow spectral characteristics. Thanks to this, green seems to the human eye more natural, without the admixture of other close colors. In addition, scientists managed to abandon the use of indium-tin oxide in the design of screens. This material is in great demand in electronics, but the reserves of its components on the planet are limited, so a sharp increase in their cost is expected in the future.

In addition, the composition of perovskites can vary very much, due to this it is convenient to change the properties of the material and obtain LEDs of any color, which is very important for their practical use, the specialist summed up.^[1]

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