A smartphone screen is one of the most power-hungry modules in its structure, and displaying an image at maximum brightness drains the battery very quickly. Decreasing the screen brightness is not an option, as it reduces the comfort of working with the gadget. Researchers at Imperial College London have proposed using polarized light to solve this problem.
The engineers proceeded from the idea that the existing anti-glare display filters are fundamentally outdated - they serve only one function. Yes, they eliminate glare, but they also halve the screen brightness. In fact, they block a part of the light, for the generation of which the energy of the batteries has already been spent. This is extremely irrational and British scientists have developed a new type of OLED display with polarized light.
After a series of experiments, they obtained a design in which the polarized light of the screen bypasses an anti-reflective filter. But this only applies to the light that comes from the screen, "from inside" the system, and external sun rays are still blocked. The user sees the image as bright as it should be. It is unlikely that he really needs it, but now you can lower the screen brightness in the settings and save battery power.
With proper design, new models of gadgets will receive a significant increase in battery life, and the quality of the picture will not change for users. This technology is easily adaptable to devices of any format, from tablets to TVs. Which, in turn, could revolutionize the industry and reduce the overall power consumption of gadgets.